diff options
Diffstat (limited to 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/boot.h | 7 | ||||
| -rw-r--r-- | include/linux/mmc/card.h | 731 | ||||
| -rw-r--r-- | include/linux/mmc/core.h | 246 | ||||
| -rw-r--r-- | include/linux/mmc/dw_mmc.h | 283 | ||||
| -rw-r--r-- | include/linux/mmc/host.h | 863 | ||||
| -rw-r--r-- | include/linux/mmc/mmc.h | 412 | ||||
| -rw-r--r-- | include/linux/mmc/pm.h | 31 | ||||
| -rw-r--r-- | include/linux/mmc/ring_buffer.h | 55 | ||||
| -rw-r--r-- | include/linux/mmc/sd.h | 94 | ||||
| -rw-r--r-- | include/linux/mmc/sdhci-pci-data.h | 20 | ||||
| -rw-r--r-- | include/linux/mmc/sdio.h | 198 | ||||
| -rw-r--r-- | include/linux/mmc/sdio_func.h | 172 | ||||
| -rw-r--r-- | include/linux/mmc/sdio_ids.h | 62 | ||||
| -rw-r--r-- | include/linux/mmc/sh_mmcif.h | 218 | ||||
| -rw-r--r-- | include/linux/mmc/sh_mobile_sdhi.h | 10 | ||||
| -rw-r--r-- | include/linux/mmc/slot-gpio.h | 33 | ||||
| -rw-r--r-- | include/linux/mmc/tmio.h | 66 |
17 files changed, 3501 insertions, 0 deletions
diff --git a/include/linux/mmc/boot.h b/include/linux/mmc/boot.h new file mode 100644 index 000000000000..23acc3baa07d --- /dev/null +++ b/include/linux/mmc/boot.h @@ -0,0 +1,7 @@ +#ifndef LINUX_MMC_BOOT_H +#define LINUX_MMC_BOOT_H + +enum { MMC_PROGRESS_ENTER, MMC_PROGRESS_INIT, + MMC_PROGRESS_LOAD, MMC_PROGRESS_DONE }; + +#endif /* LINUX_MMC_BOOT_H */ diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h new file mode 100644 index 000000000000..8e76f46adde3 --- /dev/null +++ b/include/linux/mmc/card.h @@ -0,0 +1,731 @@ +/* + * linux/include/linux/mmc/card.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Card driver specific definitions. + */ +#ifndef LINUX_MMC_CARD_H +#define LINUX_MMC_CARD_H + +#include <linux/device.h> +#include <linux/mmc/core.h> +#include <linux/mmc/mmc.h> +#include <linux/mod_devicetable.h> +#include <linux/notifier.h> + +#define MMC_CARD_CMDQ_BLK_SIZE 512 + +struct mmc_cid { + unsigned int manfid; + char prod_name[8]; + unsigned char prv; + unsigned int serial; + unsigned short oemid; + unsigned short year; + unsigned char hwrev; + unsigned char fwrev; + unsigned char month; +}; + +struct mmc_csd { + unsigned char structure; + unsigned char mmca_vsn; + unsigned short cmdclass; + unsigned short tacc_clks; + unsigned int tacc_ns; + unsigned int c_size; + unsigned int r2w_factor; + unsigned int max_dtr; + unsigned int erase_size; /* In sectors */ + unsigned int read_blkbits; + unsigned int write_blkbits; + unsigned int capacity; + unsigned int read_partial:1, + read_misalign:1, + write_partial:1, + write_misalign:1, + dsr_imp:1; +}; + +struct mmc_ext_csd { + u8 rev; + u8 erase_group_def; + u8 sec_feature_support; + u8 rel_sectors; + u8 rel_param; + bool enhanced_rpmb_supported; + u8 part_config; + u8 cache_ctrl; + u8 rst_n_function; + u8 max_packed_writes; + u8 max_packed_reads; + u8 packed_event_en; + unsigned int part_time; /* Units: ms */ + unsigned int sa_timeout; /* Units: 100ns */ + unsigned int generic_cmd6_time; /* Units: 10ms */ + unsigned int power_off_longtime; /* Units: ms */ + u8 power_off_notification; /* state */ + unsigned int hs_max_dtr; + unsigned int hs200_max_dtr; +#define MMC_HIGH_26_MAX_DTR 26000000 +#define MMC_HIGH_52_MAX_DTR 52000000 +#define MMC_HIGH_DDR_MAX_DTR 52000000 +#define MMC_HS200_MAX_DTR 200000000 + unsigned int sectors; + unsigned int hc_erase_size; /* In sectors */ + unsigned int hc_erase_timeout; /* In milliseconds */ + unsigned int sec_trim_mult; /* Secure trim multiplier */ + unsigned int sec_erase_mult; /* Secure erase multiplier */ + unsigned int trim_timeout; /* In milliseconds */ + bool partition_setting_completed; /* enable bit */ + unsigned long long enhanced_area_offset; /* Units: Byte */ + unsigned int enhanced_area_size; /* Units: KB */ + unsigned int cache_size; /* Units: KB */ + bool hpi_en; /* HPI enablebit */ + bool hpi; /* HPI support bit */ + unsigned int hpi_cmd; /* cmd used as HPI */ + bool bkops; /* background support bit */ + u8 bkops_en; /* bkops enable */ + unsigned int data_sector_size; /* 512 bytes or 4KB */ + unsigned int data_tag_unit_size; /* DATA TAG UNIT size */ + unsigned int boot_ro_lock; /* ro lock support */ + bool boot_ro_lockable; + u8 raw_ext_csd_cmdq; /* 15 */ + u8 raw_ext_csd_cache_ctrl; /* 33 */ + bool ffu_capable; /* Firmware upgrade support */ +#define MMC_FIRMWARE_LEN 8 + u8 fwrev[MMC_FIRMWARE_LEN]; /* FW version */ + u8 raw_exception_status; /* 54 */ + u8 raw_partition_support; /* 160 */ + u8 raw_rpmb_size_mult; /* 168 */ + u8 raw_erased_mem_count; /* 181 */ + u8 raw_ext_csd_bus_width; /* 183 */ + u8 strobe_support; /* 184 */ +#define MMC_STROBE_SUPPORT (1 << 0) + u8 raw_ext_csd_hs_timing; /* 185 */ + u8 raw_ext_csd_structure; /* 194 */ + u8 raw_card_type; /* 196 */ + u8 raw_driver_strength; /* 197 */ + u8 out_of_int_time; /* 198 */ + u8 raw_pwr_cl_52_195; /* 200 */ + u8 raw_pwr_cl_26_195; /* 201 */ + u8 raw_pwr_cl_52_360; /* 202 */ + u8 raw_pwr_cl_26_360; /* 203 */ + u8 raw_s_a_timeout; /* 217 */ + u8 raw_hc_erase_gap_size; /* 221 */ + u8 raw_erase_timeout_mult; /* 223 */ + u8 raw_hc_erase_grp_size; /* 224 */ + u8 raw_sec_trim_mult; /* 229 */ + u8 raw_sec_erase_mult; /* 230 */ + u8 raw_sec_feature_support;/* 231 */ + u8 raw_trim_mult; /* 232 */ + u8 raw_pwr_cl_200_195; /* 236 */ + u8 raw_pwr_cl_200_360; /* 237 */ + u8 raw_pwr_cl_ddr_52_195; /* 238 */ + u8 raw_pwr_cl_ddr_52_360; /* 239 */ + u8 raw_pwr_cl_ddr_200_360; /* 253 */ + u8 cache_flush_policy; /* 240 */ +#define MMC_BKOPS_URGENCY_MASK 0x3 + u8 raw_bkops_status; /* 246 */ + u8 raw_sectors[4]; /* 212 - 4 bytes */ + u8 pre_eol_info; /* 267 */ + u8 device_life_time_est_typ_a; /* 268 */ + u8 device_life_time_est_typ_b; /* 269 */ + u8 cmdq_depth; /* 307 */ + u8 cmdq_support; /* 308 */ + u8 barrier_support; /* 486 */ + u8 barrier_en; + + u8 fw_version; /* 254 */ + unsigned int feature_support; +#define MMC_DISCARD_FEATURE BIT(0) /* CMD38 feature */ +}; + +struct sd_scr { + unsigned char sda_vsn; + unsigned char sda_spec3; + unsigned char bus_widths; +#define SD_SCR_BUS_WIDTH_1 (1<<0) +#define SD_SCR_BUS_WIDTH_4 (1<<2) + unsigned char cmds; +#define SD_SCR_CMD20_SUPPORT (1<<0) +#define SD_SCR_CMD23_SUPPORT (1<<1) +}; + +struct sd_ssr { + unsigned int au; /* In sectors */ + unsigned int erase_timeout; /* In milliseconds */ + unsigned int erase_offset; /* In milliseconds */ +}; + +struct sd_switch_caps { + unsigned int hs_max_dtr; + unsigned int uhs_max_dtr; +#define HIGH_SPEED_MAX_DTR 50000000 +#define UHS_SDR104_MAX_DTR 208000000 +#define UHS_SDR50_MAX_DTR 100000000 +#define UHS_DDR50_MAX_DTR 50000000 +#define UHS_SDR25_MAX_DTR UHS_DDR50_MAX_DTR +#define UHS_SDR12_MAX_DTR 25000000 + unsigned int sd3_bus_mode; +#define UHS_SDR12_BUS_SPEED 0 +#define HIGH_SPEED_BUS_SPEED 1 +#define UHS_SDR25_BUS_SPEED 1 +#define UHS_SDR50_BUS_SPEED 2 +#define UHS_SDR104_BUS_SPEED 3 +#define UHS_DDR50_BUS_SPEED 4 + +#define SD_MODE_HIGH_SPEED (1 << HIGH_SPEED_BUS_SPEED) +#define SD_MODE_UHS_SDR12 (1 << UHS_SDR12_BUS_SPEED) +#define SD_MODE_UHS_SDR25 (1 << UHS_SDR25_BUS_SPEED) +#define SD_MODE_UHS_SDR50 (1 << UHS_SDR50_BUS_SPEED) +#define SD_MODE_UHS_SDR104 (1 << UHS_SDR104_BUS_SPEED) +#define SD_MODE_UHS_DDR50 (1 << UHS_DDR50_BUS_SPEED) + unsigned int sd3_drv_type; +#define SD_DRIVER_TYPE_B 0x01 +#define SD_DRIVER_TYPE_A 0x02 +#define SD_DRIVER_TYPE_C 0x04 +#define SD_DRIVER_TYPE_D 0x08 + unsigned int sd3_curr_limit; +#define SD_SET_CURRENT_LIMIT_200 0 +#define SD_SET_CURRENT_LIMIT_400 1 +#define SD_SET_CURRENT_LIMIT_600 2 +#define SD_SET_CURRENT_LIMIT_800 3 +#define SD_SET_CURRENT_NO_CHANGE (-1) + +#define SD_MAX_CURRENT_200 (1 << SD_SET_CURRENT_LIMIT_200) +#define SD_MAX_CURRENT_400 (1 << SD_SET_CURRENT_LIMIT_400) +#define SD_MAX_CURRENT_600 (1 << SD_SET_CURRENT_LIMIT_600) +#define SD_MAX_CURRENT_800 (1 << SD_SET_CURRENT_LIMIT_800) +}; + +struct sdio_cccr { + unsigned int sdio_vsn; + unsigned int sd_vsn; + unsigned int multi_block:1, + low_speed:1, + wide_bus:1, + high_power:1, + high_speed:1, + disable_cd:1, + async_intr_sup:1; +}; + +struct sdio_cis { + unsigned short vendor; + unsigned short device; + unsigned short blksize; + unsigned int max_dtr; +}; + +struct mmc_host; +struct mmc_ios; +struct sdio_func; +struct sdio_func_tuple; + +#define SDIO_MAX_FUNCS 7 + +enum mmc_blk_status { + MMC_BLK_SUCCESS = 0, + MMC_BLK_PARTIAL, + MMC_BLK_CMD_ERR, + MMC_BLK_RETRY, + MMC_BLK_ABORT, + MMC_BLK_DATA_ERR, + MMC_BLK_ECC_ERR, + MMC_BLK_NOMEDIUM, + MMC_BLK_NEW_REQUEST, +}; + +enum mmc_packed_stop_reasons { + EXCEEDS_SEGMENTS = 0, + EXCEEDS_SECTORS, + WRONG_DATA_DIR, + FLUSH_OR_DISCARD, + EMPTY_QUEUE, + REL_WRITE, + THRESHOLD, + LARGE_SEC_ALIGN, + RANDOM, + FUA, + MAX_REASONS, +}; + +struct mmc_wr_pack_stats { + u32 *packing_events; + u32 pack_stop_reason[MAX_REASONS]; + spinlock_t lock; + bool enabled; + bool print_in_read; +}; + +/* The number of MMC physical partitions. These consist of: + * boot partitions (2), general purpose partitions (4) and + * RPMB partition (1) in MMC v4.4. + */ +#define MMC_NUM_BOOT_PARTITION 2 +#define MMC_NUM_GP_PARTITION 4 +#define MMC_NUM_PHY_PARTITION 7 +#define MAX_MMC_PART_NAME_LEN 20 + +/* + * MMC Physical partitions + */ +struct mmc_part { + unsigned int size; /* partition size (in bytes) */ + unsigned int part_cfg; /* partition type */ + char name[MAX_MMC_PART_NAME_LEN]; + bool force_ro; /* to make boot parts RO by default */ + unsigned int area_type; +#define MMC_BLK_DATA_AREA_MAIN (1<<0) +#define MMC_BLK_DATA_AREA_BOOT (1<<1) +#define MMC_BLK_DATA_AREA_GP (1<<2) +#define MMC_BLK_DATA_AREA_RPMB (1<<3) +}; + +enum { + MMC_BKOPS_NO_OP, + MMC_BKOPS_NOT_CRITICAL, + MMC_BKOPS_PERF_IMPACT, + MMC_BKOPS_CRITICAL, + MMC_BKOPS_NUM_SEVERITY_LEVELS, +}; + +/** + * struct mmc_bkops_stats - BKOPS statistics + * @lock: spinlock used for synchronizing the debugfs and the runtime accesses + * to this structure. No need to call with spin_lock_irq api + * @manual_start: number of times START_BKOPS was sent to the device + * @hpi: number of times HPI was sent to the device + * @auto_start: number of times AUTO_EN was set to 1 + * @auto_stop: number of times AUTO_EN was set to 0 + * @level: number of times the device reported the need for each level of + * bkops handling + * @enabled: control over whether statistics should be gathered + * + * This structure is used to collect statistics regarding the bkops + * configuration and use-patterns. It is collected during runtime and can be + * shown to the user via a debugfs entry. + */ +struct mmc_bkops_stats { + spinlock_t lock; + unsigned int manual_start; + unsigned int hpi; + unsigned int auto_start; + unsigned int auto_stop; + unsigned int level[MMC_BKOPS_NUM_SEVERITY_LEVELS]; + bool enabled; +}; + +/** + * struct mmc_bkops_info - BKOPS data + * @stats: statistic information regarding bkops + * @needs_check: indication whether need to check with the device + * whether it requires handling of BKOPS (CMD8) + * @needs_manual: indication whether have to send START_BKOPS + * to the device + */ +struct mmc_bkops_info { + struct mmc_bkops_stats stats; + bool needs_check; + bool needs_bkops; + u32 retry_counter; +}; + +enum mmc_pon_type { + MMC_LONG_PON = 1, + MMC_SHRT_PON, +}; + +#define MMC_QUIRK_CMDQ_DELAY_BEFORE_DCMD 6 /* microseconds */ + +/* + * MMC device + */ +struct mmc_card { + struct mmc_host *host; /* the host this device belongs to */ + struct device dev; /* the device */ + u32 ocr; /* the current OCR setting */ + unsigned long clk_scaling_lowest; /* lowest scaleable + * frequency */ + unsigned long clk_scaling_highest; /* highest scaleable + * frequency */ + unsigned int rca; /* relative card address of device */ + unsigned int type; /* card type */ +#define MMC_TYPE_MMC 0 /* MMC card */ +#define MMC_TYPE_SD 1 /* SD card */ +#define MMC_TYPE_SDIO 2 /* SDIO card */ +#define MMC_TYPE_SD_COMBO 3 /* SD combo (IO+mem) card */ + unsigned int state; /* (our) card state */ +#define MMC_STATE_PRESENT (1<<0) /* present in sysfs */ +#define MMC_STATE_READONLY (1<<1) /* card is read-only */ +#define MMC_STATE_BLOCKADDR (1<<2) /* card uses block-addressing */ +#define MMC_CARD_SDXC (1<<3) /* card is SDXC */ +#define MMC_CARD_REMOVED (1<<4) /* card has been removed */ +#define MMC_STATE_DOING_BKOPS (1<<5) /* card is doing manual BKOPS */ +#define MMC_STATE_SUSPENDED (1<<6) /* card is suspended */ +#define MMC_STATE_CMDQ (1<<12) /* card is in cmd queue mode */ +#define MMC_STATE_AUTO_BKOPS (1<<13) /* card is doing auto BKOPS */ + unsigned int quirks; /* card quirks */ +#define MMC_QUIRK_LENIENT_FN0 (1<<0) /* allow SDIO FN0 writes outside of the VS CCCR range */ +#define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1) /* use func->cur_blksize */ + /* for byte mode */ +#define MMC_QUIRK_NONSTD_SDIO (1<<2) /* non-standard SDIO card attached */ + /* (missing CIA registers) */ +#define MMC_QUIRK_BROKEN_CLK_GATING (1<<3) /* clock gating the sdio bus will make card fail */ +#define MMC_QUIRK_NONSTD_FUNC_IF (1<<4) /* SDIO card has nonstd function interfaces */ +#define MMC_QUIRK_DISABLE_CD (1<<5) /* disconnect CD/DAT[3] resistor */ +#define MMC_QUIRK_INAND_CMD38 (1<<6) /* iNAND devices have broken CMD38 */ +#define MMC_QUIRK_BLK_NO_CMD23 (1<<7) /* Avoid CMD23 for regular multiblock */ +#define MMC_QUIRK_BROKEN_BYTE_MODE_512 (1<<8) /* Avoid sending 512 bytes in */ + /* byte mode */ +#define MMC_QUIRK_LONG_READ_TIME (1<<9) /* Data read time > CSD says */ +#define MMC_QUIRK_SEC_ERASE_TRIM_BROKEN (1<<10) /* Skip secure for erase/trim */ +#define MMC_QUIRK_BROKEN_IRQ_POLLING (1<<11) /* Polling SDIO_CCCR_INTx could create a fake interrupt */ +#define MMC_QUIRK_TRIM_BROKEN (1<<12) /* Skip trim */ + /* byte mode */ +#define MMC_QUIRK_INAND_DATA_TIMEOUT (1<<13) /* For incorrect data timeout */ +#define MMC_QUIRK_BROKEN_HPI (1 << 14) /* For devices which gets */ + /* broken due to HPI feature */ +#define MMC_QUIRK_CACHE_DISABLE (1 << 15) /* prevent cache enable */ +#define MMC_QUIRK_QCA6574_SETTINGS (1 << 16) /* QCA6574 card settings*/ +#define MMC_QUIRK_QCA9377_SETTINGS (1 << 17) /* QCA9377 card settings*/ + + +/* Make sure CMDQ is empty before queuing DCMD */ +#define MMC_QUIRK_CMDQ_EMPTY_BEFORE_DCMD (1 << 17) + + unsigned int erase_size; /* erase size in sectors */ + unsigned int erase_shift; /* if erase unit is power 2 */ + unsigned int pref_erase; /* in sectors */ + unsigned int eg_boundary; /* don't cross erase-group boundaries */ + u8 erased_byte; /* value of erased bytes */ + + u32 raw_cid[4]; /* raw card CID */ + u32 raw_csd[4]; /* raw card CSD */ + u32 raw_scr[2]; /* raw card SCR */ + struct mmc_cid cid; /* card identification */ + struct mmc_csd csd; /* card specific */ + struct mmc_ext_csd ext_csd; /* mmc v4 extended card specific */ + struct sd_scr scr; /* extra SD information */ + struct sd_ssr ssr; /* yet more SD information */ + struct sd_switch_caps sw_caps; /* switch (CMD6) caps */ + + unsigned int sdio_funcs; /* number of SDIO functions */ + struct sdio_cccr cccr; /* common card info */ + struct sdio_cis cis; /* common tuple info */ + struct sdio_func *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */ + struct sdio_func *sdio_single_irq; /* SDIO function when only one IRQ active */ + unsigned num_info; /* number of info strings */ + const char **info; /* info strings */ + struct sdio_func_tuple *tuples; /* unknown common tuples */ + + unsigned int sd_bus_speed; /* Bus Speed Mode set for the card */ + unsigned int mmc_avail_type; /* supported device type by both host and card */ + unsigned int drive_strength; /* for UHS-I, HS200 or HS400 */ + + struct dentry *debugfs_root; + struct mmc_part part[MMC_NUM_PHY_PARTITION]; /* physical partitions */ + unsigned int nr_parts; + unsigned int part_curr; + + struct mmc_wr_pack_stats wr_pack_stats; /* packed commands stats*/ + struct notifier_block reboot_notify; + enum mmc_pon_type pon_type; + bool cmdq_init; + struct mmc_bkops_info bkops; + bool err_in_sdr104; + bool sdr104_blocked; +}; + +/* + * This function fill contents in mmc_part. + */ +static inline void mmc_part_add(struct mmc_card *card, unsigned int size, + unsigned int part_cfg, char *name, int idx, bool ro, + int area_type) +{ + card->part[card->nr_parts].size = size; + card->part[card->nr_parts].part_cfg = part_cfg; + sprintf(card->part[card->nr_parts].name, name, idx); + card->part[card->nr_parts].force_ro = ro; + card->part[card->nr_parts].area_type = area_type; + card->nr_parts++; +} + +static inline bool mmc_large_sector(struct mmc_card *card) +{ + return card->ext_csd.data_sector_size == 4096; +} + +/* + * The world is not perfect and supplies us with broken mmc/sdio devices. + * For at least some of these bugs we need a work-around. + */ + +struct mmc_fixup { + /* CID-specific fields. */ + const char *name; + + /* Valid revision range */ + u64 rev_start, rev_end; + + unsigned int manfid; + unsigned short oemid; + + /* SDIO-specfic fields. You can use SDIO_ANY_ID here of course */ + u16 cis_vendor, cis_device; + + /* MMC-specific field, You can use EXT_CSD_REV_ANY here of course */ + unsigned int ext_csd_rev; + + void (*vendor_fixup)(struct mmc_card *card, int data); + int data; +}; + +#define CID_MANFID_SANDISK 0x2 +#define CID_MANFID_TOSHIBA 0x11 +#define CID_MANFID_MICRON 0x13 +#define CID_MANFID_SAMSUNG 0x15 +#define CID_MANFID_KINGSTON 0x70 +#define CID_MANFID_HYNIX 0x90 + +#define CID_MANFID_ANY (-1u) +#define CID_OEMID_ANY ((unsigned short) -1) +#define CID_NAME_ANY (NULL) +#define EXT_CSD_REV_ANY (-1u) + +#define END_FIXUP { NULL } + +/* extended CSD mapping to mmc version */ +enum mmc_version_ext_csd_rev { + MMC_V4_0, + MMC_V4_1, + MMC_V4_2, + MMC_V4_41 = 5, + MMC_V4_5, + MMC_V4_51 = MMC_V4_5, + MMC_V5_0, + MMC_V5_01 = MMC_V5_0, + MMC_V5_1 +}; + +#define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end, \ + _cis_vendor, _cis_device, \ + _fixup, _data, _ext_csd_rev) \ + { \ + .name = (_name), \ + .manfid = (_manfid), \ + .oemid = (_oemid), \ + .rev_start = (_rev_start), \ + .rev_end = (_rev_end), \ + .cis_vendor = (_cis_vendor), \ + .cis_device = (_cis_device), \ + .vendor_fixup = (_fixup), \ + .data = (_data), \ + .ext_csd_rev = (_ext_csd_rev), \ + } + +#define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end, \ + _fixup, _data, _ext_csd_rev) \ + _FIXUP_EXT(_name, _manfid, \ + _oemid, _rev_start, _rev_end, \ + SDIO_ANY_ID, SDIO_ANY_ID, \ + _fixup, _data, _ext_csd_rev) \ + +#define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \ + MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data, \ + EXT_CSD_REV_ANY) + +#define MMC_FIXUP_EXT_CSD_REV(_name, _manfid, _oemid, _fixup, _data, \ + _ext_csd_rev) \ + MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data, \ + _ext_csd_rev) + +#define SDIO_FIXUP(_vendor, _device, _fixup, _data) \ + _FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY, \ + CID_OEMID_ANY, 0, -1ull, \ + _vendor, _device, \ + _fixup, _data, EXT_CSD_REV_ANY) \ + +#define cid_rev(hwrev, fwrev, year, month) \ + (((u64) hwrev) << 40 | \ + ((u64) fwrev) << 32 | \ + ((u64) year) << 16 | \ + ((u64) month)) + +#define cid_rev_card(card) \ + cid_rev(card->cid.hwrev, \ + card->cid.fwrev, \ + card->cid.year, \ + card->cid.month) + +/* + * Unconditionally quirk add/remove. + */ + +static inline void __maybe_unused add_quirk(struct mmc_card *card, int data) +{ + card->quirks |= data; +} + +static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data) +{ + card->quirks &= ~data; +} + +#define mmc_card_mmc(c) ((c)->type == MMC_TYPE_MMC) +#define mmc_card_sd(c) ((c)->type == MMC_TYPE_SD) +#define mmc_card_sdio(c) ((c)->type == MMC_TYPE_SDIO) + +#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT) +#define mmc_card_readonly(c) ((c)->state & MMC_STATE_READONLY) +#define mmc_card_blockaddr(c) ((c)->state & MMC_STATE_BLOCKADDR) +#define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC) +#define mmc_card_removed(c) ((c) && ((c)->state & MMC_CARD_REMOVED)) +#define mmc_card_doing_bkops(c) ((c)->state & MMC_STATE_DOING_BKOPS) +#define mmc_card_suspended(c) ((c)->state & MMC_STATE_SUSPENDED) +#define mmc_card_cmdq(c) ((c)->state & MMC_STATE_CMDQ) +#define mmc_card_doing_auto_bkops(c) ((c)->state & MMC_STATE_AUTO_BKOPS) + +#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT) +#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY) +#define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR) +#define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC) +#define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED) +#define mmc_card_set_doing_bkops(c) ((c)->state |= MMC_STATE_DOING_BKOPS) +#define mmc_card_clr_doing_bkops(c) ((c)->state &= ~MMC_STATE_DOING_BKOPS) +#define mmc_card_set_suspended(c) ((c)->state |= MMC_STATE_SUSPENDED) +#define mmc_card_clr_suspended(c) ((c)->state &= ~MMC_STATE_SUSPENDED) +#define mmc_card_set_cmdq(c) ((c)->state |= MMC_STATE_CMDQ) +#define mmc_card_clr_cmdq(c) ((c)->state &= ~MMC_STATE_CMDQ) +#define mmc_card_set_auto_bkops(c) ((c)->state |= MMC_STATE_AUTO_BKOPS) +#define mmc_card_clr_auto_bkops(c) ((c)->state &= ~MMC_STATE_AUTO_BKOPS) + +#define mmc_card_strobe(c) (((c)->ext_csd).strobe_support & MMC_STROBE_SUPPORT) + +/* + * Quirk add/remove for MMC products. + */ + +static inline void __maybe_unused add_quirk_mmc(struct mmc_card *card, int data) +{ + if (mmc_card_mmc(card)) + card->quirks |= data; +} + +static inline void __maybe_unused remove_quirk_mmc(struct mmc_card *card, + int data) +{ + if (mmc_card_mmc(card)) + card->quirks &= ~data; +} + +/* + * Quirk add/remove for SD products. + */ + +static inline void __maybe_unused add_quirk_sd(struct mmc_card *card, int data) +{ + if (mmc_card_sd(card)) + card->quirks |= data; +} + +static inline void __maybe_unused remove_quirk_sd(struct mmc_card *card, + int data) +{ + if (mmc_card_sd(card)) + card->quirks &= ~data; +} + +static inline int mmc_card_lenient_fn0(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_LENIENT_FN0; +} + +static inline int mmc_blksz_for_byte_mode(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_BLKSZ_FOR_BYTE_MODE; +} + +static inline int mmc_card_disable_cd(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_DISABLE_CD; +} + +static inline int mmc_card_nonstd_func_interface(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_NONSTD_FUNC_IF; +} + +static inline int mmc_card_broken_byte_mode_512(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512; +} + +static inline int mmc_card_long_read_time(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_LONG_READ_TIME; +} + +static inline int mmc_card_broken_irq_polling(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_BROKEN_IRQ_POLLING; +} + +static inline bool mmc_card_support_auto_bkops(const struct mmc_card *c) +{ + return c->ext_csd.rev >= MMC_V5_1; +} + +static inline bool mmc_card_configured_manual_bkops(const struct mmc_card *c) +{ + return c->ext_csd.bkops_en & EXT_CSD_BKOPS_MANUAL_EN; +} + +static inline bool mmc_card_configured_auto_bkops(const struct mmc_card *c) +{ + return c->ext_csd.bkops_en & EXT_CSD_BKOPS_AUTO_EN; +} + +static inline bool mmc_enable_qca6574_settings(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_QCA6574_SETTINGS; +} + +static inline bool mmc_enable_qca9377_settings(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_QCA9377_SETTINGS; +} + +#define mmc_card_name(c) ((c)->cid.prod_name) +#define mmc_card_id(c) (dev_name(&(c)->dev)) + +#define mmc_dev_to_card(d) container_of(d, struct mmc_card, dev) +#define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev) +#define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d) + +/* + * MMC device driver (e.g., Flash card, I/O card...) + */ +struct mmc_driver { + struct device_driver drv; + int (*probe)(struct mmc_card *); + void (*remove)(struct mmc_card *); + void (*shutdown)(struct mmc_card *); +}; + +extern int mmc_register_driver(struct mmc_driver *); +extern void mmc_unregister_driver(struct mmc_driver *); + +extern void mmc_fixup_device(struct mmc_card *card, + const struct mmc_fixup *table); +extern struct mmc_wr_pack_stats *mmc_blk_get_packed_statistics( + struct mmc_card *card); +extern void mmc_blk_init_packed_statistics(struct mmc_card *card); +extern int mmc_send_pon(struct mmc_card *card); +extern void mmc_blk_cmdq_req_done(struct mmc_request *mrq); +#endif /* LINUX_MMC_CARD_H */ diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h new file mode 100644 index 000000000000..ef3e628388cf --- /dev/null +++ b/include/linux/mmc/core.h @@ -0,0 +1,246 @@ +/* + * linux/include/linux/mmc/core.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef LINUX_MMC_CORE_H +#define LINUX_MMC_CORE_H + +#include <uapi/linux/mmc/core.h> +#include <linux/interrupt.h> +#include <linux/completion.h> + +struct request; +struct mmc_data; +struct mmc_request; + +struct mmc_command { + u32 opcode; + u32 arg; +#define MMC_CMD23_ARG_REL_WR (1 << 31) +#define MMC_CMD23_ARG_PACKED ((0 << 31) | (1 << 30)) +#define MMC_CMD23_ARG_TAG_REQ (1 << 29) + u32 resp[4]; + unsigned int flags; /* expected response type */ +#define mmc_resp_type(cmd) ((cmd)->flags & (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC|MMC_RSP_BUSY|MMC_RSP_OPCODE)) + +/* + * These are the SPI response types for MMC, SD, and SDIO cards. + * Commands return R1, with maybe more info. Zero is an error type; + * callers must always provide the appropriate MMC_RSP_SPI_Rx flags. + */ +#define MMC_RSP_SPI_R1 (MMC_RSP_SPI_S1) +#define MMC_RSP_SPI_R1B (MMC_RSP_SPI_S1|MMC_RSP_SPI_BUSY) +#define MMC_RSP_SPI_R2 (MMC_RSP_SPI_S1|MMC_RSP_SPI_S2) +#define MMC_RSP_SPI_R3 (MMC_RSP_SPI_S1|MMC_RSP_SPI_B4) +#define MMC_RSP_SPI_R4 (MMC_RSP_SPI_S1|MMC_RSP_SPI_B4) +#define MMC_RSP_SPI_R5 (MMC_RSP_SPI_S1|MMC_RSP_SPI_S2) +#define MMC_RSP_SPI_R7 (MMC_RSP_SPI_S1|MMC_RSP_SPI_B4) + +#define mmc_spi_resp_type(cmd) ((cmd)->flags & \ + (MMC_RSP_SPI_S1|MMC_RSP_SPI_BUSY|MMC_RSP_SPI_S2|MMC_RSP_SPI_B4)) + +/* + * These are the command types. + */ +#define mmc_cmd_type(cmd) ((cmd)->flags & MMC_CMD_MASK) + + unsigned int retries; /* max number of retries */ + int error; /* command error */ + +/* + * Standard errno values are used for errors, but some have specific + * meaning in the MMC layer: + * + * ETIMEDOUT Card took too long to respond + * EILSEQ Basic format problem with the received or sent data + * (e.g. CRC check failed, incorrect opcode in response + * or bad end bit) + * EINVAL Request cannot be performed because of restrictions + * in hardware and/or the driver + * ENOMEDIUM Host can determine that the slot is empty and is + * actively failing requests + */ + + unsigned int busy_timeout; /* busy detect timeout in ms */ + /* Set this flag only for blocking sanitize request */ + bool sanitize_busy; + /* Set this flag only for blocking bkops request */ + bool bkops_busy; + + struct mmc_data *data; /* data segment associated with cmd */ + struct mmc_request *mrq; /* associated request */ +}; + +struct mmc_data { + unsigned int timeout_ns; /* data timeout (in ns, max 80ms) */ + unsigned int timeout_clks; /* data timeout (in clocks) */ + unsigned int blksz; /* data block size */ + unsigned int blocks; /* number of blocks */ + int error; /* data error */ + unsigned int flags; + +#define MMC_DATA_WRITE (1 << 8) +#define MMC_DATA_READ (1 << 9) +#define MMC_DATA_STREAM (1 << 10) + + unsigned int bytes_xfered; + + struct mmc_command *stop; /* stop command */ + struct mmc_request *mrq; /* associated request */ + + unsigned int sg_len; /* size of scatter list */ + int sg_count; /* mapped sg entries */ + struct scatterlist *sg; /* I/O scatter list */ + s32 host_cookie; /* host private data */ + bool fault_injected; /* fault injected */ +}; + +struct mmc_host; +struct mmc_request { + struct mmc_command *sbc; /* SET_BLOCK_COUNT for multiblock */ + struct mmc_command *cmd; + struct mmc_data *data; + struct mmc_command *stop; + + struct completion completion; + void (*done)(struct mmc_request *);/* completion function */ + struct mmc_host *host; + struct mmc_cmdq_req *cmdq_req; + struct request *req; + ktime_t io_start; +#ifdef CONFIG_BLOCK + int lat_hist_enabled; +#endif +}; + +struct mmc_bus_ops { + void (*remove)(struct mmc_host *); + void (*detect)(struct mmc_host *); + int (*pre_suspend)(struct mmc_host *); + int (*suspend)(struct mmc_host *); + int (*resume)(struct mmc_host *); + int (*runtime_suspend)(struct mmc_host *); + int (*runtime_resume)(struct mmc_host *); + int (*runtime_idle)(struct mmc_host *); + int (*power_save)(struct mmc_host *); + int (*power_restore)(struct mmc_host *); + int (*alive)(struct mmc_host *); + int (*shutdown)(struct mmc_host *); + int (*reset)(struct mmc_host *); + int (*change_bus_speed)(struct mmc_host *, unsigned long *); + int (*pre_hibernate)(struct mmc_host *); + int (*post_hibernate)(struct mmc_host *); +}; + +struct mmc_card; +struct mmc_async_req; +struct mmc_cmdq_req; + +extern int mmc_cmdq_discard_queue(struct mmc_host *host, u32 tasks); +extern int mmc_cmdq_halt(struct mmc_host *host, bool enable); +extern int mmc_cmdq_halt_on_empty_queue(struct mmc_host *host); +extern void mmc_cmdq_post_req(struct mmc_host *host, int tag, int err); +extern int mmc_cmdq_start_req(struct mmc_host *host, + struct mmc_cmdq_req *cmdq_req); +extern int mmc_cmdq_prepare_flush(struct mmc_command *cmd); +extern int mmc_cmdq_wait_for_dcmd(struct mmc_host *host, + struct mmc_cmdq_req *cmdq_req); +extern int mmc_cmdq_erase(struct mmc_cmdq_req *cmdq_req, + struct mmc_card *card, unsigned int from, unsigned int nr, + unsigned int arg); + +extern int mmc_stop_bkops(struct mmc_card *); +extern int mmc_read_bkops_status(struct mmc_card *); +extern struct mmc_async_req *mmc_start_req(struct mmc_host *, + struct mmc_async_req *, int *); +extern int mmc_interrupt_hpi(struct mmc_card *); +extern void mmc_wait_for_req(struct mmc_host *, struct mmc_request *); +extern int mmc_wait_for_cmd(struct mmc_host *, struct mmc_command *, int); +extern int mmc_app_cmd(struct mmc_host *, struct mmc_card *); +extern int mmc_wait_for_app_cmd(struct mmc_host *, struct mmc_card *, + struct mmc_command *, int); +extern void mmc_check_bkops(struct mmc_card *card); +extern void mmc_start_manual_bkops(struct mmc_card *card); +extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int); +extern int __mmc_switch_cmdq_mode(struct mmc_command *cmd, u8 set, u8 index, + u8 value, unsigned int timeout_ms, + bool use_busy_signal, bool ignore_timeout); +extern int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); +extern int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); +extern int mmc_set_auto_bkops(struct mmc_card *card, bool enable); +extern int mmc_suspend_clk_scaling(struct mmc_host *host); +extern void mmc_flush_detect_work(struct mmc_host *); + +#define MMC_ERASE_ARG 0x00000000 +#define MMC_SECURE_ERASE_ARG 0x80000000 +#define MMC_TRIM_ARG 0x00000001 +#define MMC_DISCARD_ARG 0x00000003 +#define MMC_SECURE_TRIM1_ARG 0x80000001 +#define MMC_SECURE_TRIM2_ARG 0x80008000 + +#define MMC_SECURE_ARGS 0x80000000 +#define MMC_TRIM_ARGS 0x00008001 + +extern int mmc_erase(struct mmc_card *card, unsigned int from, unsigned int nr, + unsigned int arg); +extern int mmc_can_erase(struct mmc_card *card); +extern int mmc_can_trim(struct mmc_card *card); +extern int mmc_can_discard(struct mmc_card *card); +extern int mmc_can_sanitize(struct mmc_card *card); +extern int mmc_can_secure_erase_trim(struct mmc_card *card); +extern int mmc_erase_group_aligned(struct mmc_card *card, unsigned int from, + unsigned int nr); +extern unsigned int mmc_calc_max_discard(struct mmc_card *card); + +extern int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen); +extern int mmc_set_blockcount(struct mmc_card *card, unsigned int blockcount, + bool is_rel_write); +extern int mmc_hw_reset(struct mmc_host *host); +extern int mmc_cmdq_hw_reset(struct mmc_host *host); +extern int mmc_can_reset(struct mmc_card *card); + +extern void mmc_set_data_timeout(struct mmc_data *, const struct mmc_card *); +extern unsigned int mmc_align_data_size(struct mmc_card *, unsigned int); + +extern int __mmc_claim_host(struct mmc_host *host, atomic_t *abort); +extern void mmc_release_host(struct mmc_host *host); +extern int mmc_try_claim_host(struct mmc_host *host, unsigned int delay); + +extern void mmc_get_card(struct mmc_card *card); +extern void mmc_put_card(struct mmc_card *card); +extern void __mmc_put_card(struct mmc_card *card); + +extern void mmc_set_ios(struct mmc_host *host); +extern int mmc_flush_cache(struct mmc_card *); +extern int mmc_cache_barrier(struct mmc_card *); + +extern int mmc_detect_card_removed(struct mmc_host *host); + +extern void mmc_blk_init_bkops_statistics(struct mmc_card *card); + +extern void mmc_deferred_scaling(struct mmc_host *host); +extern void mmc_cmdq_clk_scaling_start_busy(struct mmc_host *host, + bool lock_needed); +extern void mmc_cmdq_clk_scaling_stop_busy(struct mmc_host *host, + bool lock_needed, bool is_cmdq_dcmd); +extern int mmc_recovery_fallback_lower_speed(struct mmc_host *host); + +/** + * mmc_claim_host - exclusively claim a host + * @host: mmc host to claim + * + * Claim a host for a set of operations. + */ +static inline void mmc_claim_host(struct mmc_host *host) +{ + __mmc_claim_host(host, NULL); +} + +struct device_node; +extern u32 mmc_vddrange_to_ocrmask(int vdd_min, int vdd_max); +extern int mmc_of_parse_voltage(struct device_node *np, u32 *mask); + +#endif /* LINUX_MMC_CORE_H */ diff --git a/include/linux/mmc/dw_mmc.h b/include/linux/mmc/dw_mmc.h new file mode 100644 index 000000000000..7776afb0ffa5 --- /dev/null +++ b/include/linux/mmc/dw_mmc.h @@ -0,0 +1,283 @@ +/* + * Synopsys DesignWare Multimedia Card Interface driver + * (Based on NXP driver for lpc 31xx) + * + * Copyright (C) 2009 NXP Semiconductors + * Copyright (C) 2009, 2010 Imagination Technologies Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + */ + +#ifndef LINUX_MMC_DW_MMC_H +#define LINUX_MMC_DW_MMC_H + +#include <linux/scatterlist.h> +#include <linux/mmc/core.h> +#include <linux/dmaengine.h> + +#define MAX_MCI_SLOTS 2 + +enum dw_mci_state { + STATE_IDLE = 0, + STATE_SENDING_CMD, + STATE_SENDING_DATA, + STATE_DATA_BUSY, + STATE_SENDING_STOP, + STATE_DATA_ERROR, + STATE_SENDING_CMD11, + STATE_WAITING_CMD11_DONE, +}; + +enum { + EVENT_CMD_COMPLETE = 0, + EVENT_XFER_COMPLETE, + EVENT_DATA_COMPLETE, + EVENT_DATA_ERROR, + EVENT_XFER_ERROR +}; + +struct mmc_data; + +enum { + TRANS_MODE_PIO = 0, + TRANS_MODE_IDMAC, + TRANS_MODE_EDMAC +}; + +struct dw_mci_dma_slave { + struct dma_chan *ch; + enum dma_transfer_direction direction; +}; + +/** + * struct dw_mci - MMC controller state shared between all slots + * @lock: Spinlock protecting the queue and associated data. + * @regs: Pointer to MMIO registers. + * @fifo_reg: Pointer to MMIO registers for data FIFO + * @sg: Scatterlist entry currently being processed by PIO code, if any. + * @sg_miter: PIO mapping scatterlist iterator. + * @cur_slot: The slot which is currently using the controller. + * @mrq: The request currently being processed on @cur_slot, + * or NULL if the controller is idle. + * @cmd: The command currently being sent to the card, or NULL. + * @data: The data currently being transferred, or NULL if no data + * transfer is in progress. + * @use_dma: Whether DMA channel is initialized or not. + * @using_dma: Whether DMA is in use for the current transfer. + * @dma_64bit_address: Whether DMA supports 64-bit address mode or not. + * @sg_dma: Bus address of DMA buffer. + * @sg_cpu: Virtual address of DMA buffer. + * @dma_ops: Pointer to platform-specific DMA callbacks. + * @cmd_status: Snapshot of SR taken upon completion of the current + * command. Only valid when EVENT_CMD_COMPLETE is pending. + * @data_status: Snapshot of SR taken upon completion of the current + * data transfer. Only valid when EVENT_DATA_COMPLETE or + * EVENT_DATA_ERROR is pending. + * @stop_cmdr: Value to be loaded into CMDR when the stop command is + * to be sent. + * @dir_status: Direction of current transfer. + * @tasklet: Tasklet running the request state machine. + * @card_tasklet: Tasklet handling card detect. + * @pending_events: Bitmask of events flagged by the interrupt handler + * to be processed by the tasklet. + * @completed_events: Bitmask of events which the state machine has + * processed. + * @state: Tasklet state. + * @queue: List of slots waiting for access to the controller. + * @bus_hz: The rate of @mck in Hz. This forms the basis for MMC bus + * rate and timeout calculations. + * @current_speed: Configured rate of the controller. + * @num_slots: Number of slots available. + * @verid: Denote Version ID. + * @dev: Device associated with the MMC controller. + * @pdata: Platform data associated with the MMC controller. + * @drv_data: Driver specific data for identified variant of the controller + * @priv: Implementation defined private data. + * @biu_clk: Pointer to bus interface unit clock instance. + * @ciu_clk: Pointer to card interface unit clock instance. + * @slot: Slots sharing this MMC controller. + * @fifo_depth: depth of FIFO. + * @data_shift: log2 of FIFO item size. + * @part_buf_start: Start index in part_buf. + * @part_buf_count: Bytes of partial data in part_buf. + * @part_buf: Simple buffer for partial fifo reads/writes. + * @push_data: Pointer to FIFO push function. + * @pull_data: Pointer to FIFO pull function. + * @quirks: Set of quirks that apply to specific versions of the IP. + * @irq_flags: The flags to be passed to request_irq. + * @irq: The irq value to be passed to request_irq. + * @sdio_id0: Number of slot0 in the SDIO interrupt registers. + * @dto_timer: Timer for broken data transfer over scheme. + * + * Locking + * ======= + * + * @lock is a softirq-safe spinlock protecting @queue as well as + * @cur_slot, @mrq and @state. These must always be updated + * at the same time while holding @lock. + * + * @irq_lock is an irq-safe spinlock protecting the INTMASK register + * to allow the interrupt handler to modify it directly. Held for only long + * enough to read-modify-write INTMASK and no other locks are grabbed when + * holding this one. + * + * The @mrq field of struct dw_mci_slot is also protected by @lock, + * and must always be written at the same time as the slot is added to + * @queue. + * + * @pending_events and @completed_events are accessed using atomic bit + * operations, so they don't need any locking. + * + * None of the fields touched by the interrupt handler need any + * locking. However, ordering is important: Before EVENT_DATA_ERROR or + * EVENT_DATA_COMPLETE is set in @pending_events, all data-related + * interrupts must be disabled and @data_status updated with a + * snapshot of SR. Similarly, before EVENT_CMD_COMPLETE is set, the + * CMDRDY interrupt must be disabled and @cmd_status updated with a + * snapshot of SR, and before EVENT_XFER_COMPLETE can be set, the + * bytes_xfered field of @data must be written. This is ensured by + * using barriers. + */ +struct dw_mci { + spinlock_t lock; + spinlock_t irq_lock; + void __iomem *regs; + void __iomem *fifo_reg; + + struct scatterlist *sg; + struct sg_mapping_iter sg_miter; + + struct dw_mci_slot *cur_slot; + struct mmc_request *mrq; + struct mmc_command *cmd; + struct mmc_data *data; + struct mmc_command stop_abort; + unsigned int prev_blksz; + unsigned char timing; + + /* DMA interface members*/ + int use_dma; + int using_dma; + int dma_64bit_address; + + dma_addr_t sg_dma; + void *sg_cpu; + const struct dw_mci_dma_ops *dma_ops; + /* For idmac */ + unsigned int ring_size; + + /* For edmac */ + struct dw_mci_dma_slave *dms; + /* Registers's physical base address */ + resource_size_t phy_regs; + + u32 cmd_status; + u32 data_status; + u32 stop_cmdr; + u32 dir_status; + struct tasklet_struct tasklet; + unsigned long pending_events; + unsigned long completed_events; + enum dw_mci_state state; + struct list_head queue; + + u32 bus_hz; + u32 current_speed; + u32 num_slots; + u32 fifoth_val; + u16 verid; + struct device *dev; + struct dw_mci_board *pdata; + const struct dw_mci_drv_data *drv_data; + void *priv; + struct clk *biu_clk; + struct clk *ciu_clk; + struct dw_mci_slot *slot[MAX_MCI_SLOTS]; + + /* FIFO push and pull */ + int fifo_depth; + int data_shift; + u8 part_buf_start; + u8 part_buf_count; + union { + u16 part_buf16; + u32 part_buf32; + u64 part_buf; + }; + void (*push_data)(struct dw_mci *host, void *buf, int cnt); + void (*pull_data)(struct dw_mci *host, void *buf, int cnt); + + /* Workaround flags */ + u32 quirks; + + bool vqmmc_enabled; + unsigned long irq_flags; /* IRQ flags */ + int irq; + + int sdio_id0; + + struct timer_list cmd11_timer; + struct timer_list dto_timer; +}; + +/* DMA ops for Internal/External DMAC interface */ +struct dw_mci_dma_ops { + /* DMA Ops */ + int (*init)(struct dw_mci *host); + int (*start)(struct dw_mci *host, unsigned int sg_len); + void (*complete)(void *host); + void (*stop)(struct dw_mci *host); + void (*cleanup)(struct dw_mci *host); + void (*exit)(struct dw_mci *host); +}; + +/* IP Quirks/flags. */ +/* DTO fix for command transmission with IDMAC configured */ +#define DW_MCI_QUIRK_IDMAC_DTO BIT(0) +/* delay needed between retries on some 2.11a implementations */ +#define DW_MCI_QUIRK_RETRY_DELAY BIT(1) +/* High Speed Capable - Supports HS cards (up to 50MHz) */ +#define DW_MCI_QUIRK_HIGHSPEED BIT(2) +/* Unreliable card detection */ +#define DW_MCI_QUIRK_BROKEN_CARD_DETECTION BIT(3) +/* Timer for broken data transfer over scheme */ +#define DW_MCI_QUIRK_BROKEN_DTO BIT(4) + +struct dma_pdata; + +struct block_settings { + unsigned short max_segs; /* see blk_queue_max_segments */ + unsigned int max_blk_size; /* maximum size of one mmc block */ + unsigned int max_blk_count; /* maximum number of blocks in one req*/ + unsigned int max_req_size; /* maximum number of bytes in one req*/ + unsigned int max_seg_size; /* see blk_queue_max_segment_size */ +}; + +/* Board platform data */ +struct dw_mci_board { + u32 num_slots; + + u32 quirks; /* Workaround / Quirk flags */ + unsigned int bus_hz; /* Clock speed at the cclk_in pad */ + + u32 caps; /* Capabilities */ + u32 caps2; /* More capabilities */ + u32 pm_caps; /* PM capabilities */ + /* + * Override fifo depth. If 0, autodetect it from the FIFOTH register, + * but note that this may not be reliable after a bootloader has used + * it. + */ + unsigned int fifo_depth; + + /* delay in mS before detecting cards after interrupt */ + u32 detect_delay_ms; + + struct dw_mci_dma_ops *dma_ops; + struct dma_pdata *data; +}; + +#endif /* LINUX_MMC_DW_MMC_H */ diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h new file mode 100644 index 000000000000..2dff3db6e4f3 --- /dev/null +++ b/include/linux/mmc/host.h @@ -0,0 +1,863 @@ +/* + * linux/include/linux/mmc/host.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Host driver specific definitions. + */ +#ifndef LINUX_MMC_HOST_H +#define LINUX_MMC_HOST_H + +#include <linux/leds.h> +#include <linux/mutex.h> +#include <linux/timer.h> +#include <linux/sched.h> +#include <linux/device.h> +#include <linux/devfreq.h> +#include <linux/fault-inject.h> +#include <linux/blkdev.h> + +#include <linux/mmc/core.h> +#include <linux/mmc/card.h> +#include <linux/mmc/pm.h> +#include <linux/mmc/ring_buffer.h> + +#define MMC_AUTOSUSPEND_DELAY_MS 3000 + +struct mmc_ios { + unsigned int clock; /* clock rate */ + unsigned int old_rate; /* saved clock rate */ + unsigned long clk_ts; /* time stamp of last updated clock */ + unsigned short vdd; + +/* vdd stores the bit number of the selected voltage range from below. */ + + unsigned char bus_mode; /* command output mode */ + +#define MMC_BUSMODE_OPENDRAIN 1 +#define MMC_BUSMODE_PUSHPULL 2 + + unsigned char chip_select; /* SPI chip select */ + +#define MMC_CS_DONTCARE 0 +#define MMC_CS_HIGH 1 +#define MMC_CS_LOW 2 + + unsigned char power_mode; /* power supply mode */ + +#define MMC_POWER_OFF 0 +#define MMC_POWER_UP 1 +#define MMC_POWER_ON 2 +#define MMC_POWER_UNDEFINED 3 + + unsigned char bus_width; /* data bus width */ + +#define MMC_BUS_WIDTH_1 0 +#define MMC_BUS_WIDTH_4 2 +#define MMC_BUS_WIDTH_8 3 + + unsigned char timing; /* timing specification used */ + +#define MMC_TIMING_LEGACY 0 +#define MMC_TIMING_MMC_HS 1 +#define MMC_TIMING_SD_HS 2 +#define MMC_TIMING_UHS_SDR12 3 +#define MMC_TIMING_UHS_SDR25 4 +#define MMC_TIMING_UHS_SDR50 5 +#define MMC_TIMING_UHS_SDR104 6 +#define MMC_TIMING_UHS_DDR50 7 +#define MMC_TIMING_MMC_DDR52 8 +#define MMC_TIMING_MMC_HS200 9 +#define MMC_TIMING_MMC_HS400 10 + + unsigned char signal_voltage; /* signalling voltage (1.8V or 3.3V) */ + +#define MMC_SIGNAL_VOLTAGE_330 0 +#define MMC_SIGNAL_VOLTAGE_180 1 +#define MMC_SIGNAL_VOLTAGE_120 2 + + unsigned char drv_type; /* driver type (A, B, C, D) */ + +#define MMC_SET_DRIVER_TYPE_B 0 +#define MMC_SET_DRIVER_TYPE_A 1 +#define MMC_SET_DRIVER_TYPE_C 2 +#define MMC_SET_DRIVER_TYPE_D 3 + + bool enhanced_strobe; /* hs400es selection */ +}; + +/* states to represent load on the host */ +enum mmc_load { + MMC_LOAD_HIGH, + MMC_LOAD_LOW, +}; + +struct mmc_cmdq_host_ops { + int (*init)(struct mmc_host *host); + int (*enable)(struct mmc_host *host); + void (*disable)(struct mmc_host *host, bool soft); + int (*request)(struct mmc_host *host, struct mmc_request *mrq); + void (*post_req)(struct mmc_host *host, int tag, int err); + int (*halt)(struct mmc_host *host, bool halt); + void (*reset)(struct mmc_host *host, bool soft); + void (*dumpstate)(struct mmc_host *host); +}; + +struct mmc_host_ops { + int (*init)(struct mmc_host *host); + /* + * 'enable' is called when the host is claimed and 'disable' is called + * when the host is released. 'enable' and 'disable' are deprecated. + */ + int (*enable)(struct mmc_host *host); + int (*disable)(struct mmc_host *host); + /* + * It is optional for the host to implement pre_req and post_req in + * order to support double buffering of requests (prepare one + * request while another request is active). + * pre_req() must always be followed by a post_req(). + * To undo a call made to pre_req(), call post_req() with + * a nonzero err condition. + */ + void (*post_req)(struct mmc_host *host, struct mmc_request *req, + int err); + void (*pre_req)(struct mmc_host *host, struct mmc_request *req, + bool is_first_req); + void (*request)(struct mmc_host *host, struct mmc_request *req); + /* + * Avoid calling these three functions too often or in a "fast path", + * since underlaying controller might implement them in an expensive + * and/or slow way. + * + * Also note that these functions might sleep, so don't call them + * in the atomic contexts! + * + * Return values for the get_ro callback should be: + * 0 for a read/write card + * 1 for a read-only card + * -ENOSYS when not supported (equal to NULL callback) + * or a negative errno value when something bad happened + * + * Return values for the get_cd callback should be: + * 0 for a absent card + * 1 for a present card + * -ENOSYS when not supported (equal to NULL callback) + * or a negative errno value when something bad happened + */ + void (*set_ios)(struct mmc_host *host, struct mmc_ios *ios); + int (*get_ro)(struct mmc_host *host); + int (*get_cd)(struct mmc_host *host); + + void (*enable_sdio_irq)(struct mmc_host *host, int enable); + + /* optional callback for HC quirks */ + void (*init_card)(struct mmc_host *host, struct mmc_card *card); + + int (*start_signal_voltage_switch)(struct mmc_host *host, struct mmc_ios *ios); + + /* Check if the card is pulling dat[0:3] low */ + int (*card_busy)(struct mmc_host *host); + + /* The tuning command opcode value is different for SD and eMMC cards */ + int (*execute_tuning)(struct mmc_host *host, u32 opcode); + + /* Prepare HS400 target operating frequency depending host driver */ + int (*prepare_hs400_tuning)(struct mmc_host *host, struct mmc_ios *ios); + int (*enhanced_strobe)(struct mmc_host *host); + int (*select_drive_strength)(struct mmc_card *card, + unsigned int max_dtr, int host_drv, + int card_drv, int *drv_type); + void (*hw_reset)(struct mmc_host *host); + void (*card_event)(struct mmc_host *host); + + /* + * Optional callback to support controllers with HW issues for multiple + * I/O. Returns the number of supported blocks for the request. + */ + int (*multi_io_quirk)(struct mmc_card *card, + unsigned int direction, int blk_size); + + unsigned long (*get_max_frequency)(struct mmc_host *host); + unsigned long (*get_min_frequency)(struct mmc_host *host); + + int (*notify_load)(struct mmc_host *, enum mmc_load); + void (*notify_halt)(struct mmc_host *mmc, bool halt); + void (*force_err_irq)(struct mmc_host *host, u64 errmask); + int (*check_temp)(struct mmc_host *host); + int (*reg_temp_callback)(struct mmc_host *host); + int (*dereg_temp_callback)(struct mmc_host *host); +}; + +struct mmc_card; +struct device; + +struct mmc_cmdq_req { + unsigned int cmd_flags; + u32 blk_addr; + /* active mmc request */ + struct mmc_request mrq; + struct mmc_data data; + struct mmc_command cmd; +#define DCMD (1 << 0) +#define QBR (1 << 1) +#define DIR (1 << 2) +#define PRIO (1 << 3) +#define REL_WR (1 << 4) +#define DAT_TAG (1 << 5) +#define FORCED_PRG (1 << 6) + unsigned int cmdq_req_flags; + + unsigned int resp_idx; + unsigned int resp_arg; + unsigned int dev_pend_tasks; + bool resp_err; + bool skip_err_handling; + int tag; /* used for command queuing */ + u8 ctx_id; +}; + +struct mmc_async_req { + /* active mmc request */ + struct mmc_request *mrq; + /* + * Check error status of completed mmc request. + * Returns 0 if success otherwise non zero. + */ + int (*err_check) (struct mmc_card *, struct mmc_async_req *); +}; + +/** + * struct mmc_slot - MMC slot functions + * + * @cd_irq: MMC/SD-card slot hotplug detection IRQ or -EINVAL + * @handler_priv: MMC/SD-card slot context + * + * Some MMC/SD host controllers implement slot-functions like card and + * write-protect detection natively. However, a large number of controllers + * leave these functions to the CPU. This struct provides a hook to attach + * such slot-function drivers. + */ +struct mmc_slot { + int cd_irq; + void *handler_priv; +}; + + +/** + * mmc_cmdq_context_info - describes the contexts of cmdq + * @active_reqs requests being processed + * @data_active_reqs data requests being processed + * @curr_state state of cmdq engine + * @cmdq_ctx_lock acquire this before accessing this structure + * @queue_empty_wq workqueue for waiting for all + * the outstanding requests to be completed + * @wait waiting for all conditions described in + * mmc_cmdq_ready_wait to be satisified before + * issuing the new request to LLD. + */ +struct mmc_cmdq_context_info { + unsigned long active_reqs; /* in-flight requests */ + unsigned long data_active_reqs; /* in-flight data requests */ + unsigned long curr_state; +#define CMDQ_STATE_ERR 0 +#define CMDQ_STATE_DCMD_ACTIVE 1 +#define CMDQ_STATE_HALT 2 +#define CMDQ_STATE_CQ_DISABLE 3 +#define CMDQ_STATE_REQ_TIMED_OUT 4 + wait_queue_head_t queue_empty_wq; + wait_queue_head_t wait; + int active_small_sector_read_reqs; +}; + +/** + * mmc_context_info - synchronization details for mmc context + * @is_done_rcv wake up reason was done request + * @is_new_req wake up reason was new request + * @is_waiting_last_req mmc context waiting for single running request + * @wait wait queue + * @lock lock to protect data fields + */ +struct mmc_context_info { + bool is_done_rcv; + bool is_new_req; + bool is_waiting_last_req; + wait_queue_head_t wait; + spinlock_t lock; +}; + +struct regulator; +struct mmc_pwrseq; + +struct mmc_supply { + struct regulator *vmmc; /* Card power supply */ + struct regulator *vqmmc; /* Optional Vccq supply */ +}; + +enum dev_state { + DEV_SUSPENDING = 1, + DEV_SUSPENDED, + DEV_RESUMED, +}; + +/** + * struct mmc_devfeq_clk_scaling - main context for MMC clock scaling logic + * + * @lock: spinlock to protect statistics + * @devfreq: struct that represent mmc-host as a client for devfreq + * @devfreq_profile: MMC device profile, mostly polling interval and callbacks + * @ondemand_gov_data: struct supplied to ondemmand governor (thresholds) + * @state: load state, can be HIGH or LOW. used to notify mmc_host_ops callback + * @start_busy: timestamped armed once a data request is started + * @measure_interval_start: timestamped armed once a measure interval started + * @devfreq_abort: flag to sync between different contexts relevant to devfreq + * @skip_clk_scale_freq_update: flag that enable/disable frequency change + * @freq_table_sz: table size of frequencies supplied to devfreq + * @freq_table: frequencies table supplied to devfreq + * @curr_freq: current frequency + * @polling_delay_ms: polling interval for status collection used by devfreq + * @upthreshold: up-threshold supplied to ondemand governor + * @downthreshold: down-threshold supplied to ondemand governor + * @need_freq_change: flag indicating if a frequency change is required + * @clk_scaling_in_progress: flag indicating if there's ongoing frequency change + * @is_busy_started: flag indicating if a request is handled by the HW + * @enable: flag indicating if the clock scaling logic is enabled for this host + */ +struct mmc_devfeq_clk_scaling { + spinlock_t lock; + struct devfreq *devfreq; + struct devfreq_dev_profile devfreq_profile; + struct devfreq_simple_ondemand_data ondemand_gov_data; + enum mmc_load state; + ktime_t start_busy; + ktime_t measure_interval_start; + atomic_t devfreq_abort; + bool skip_clk_scale_freq_update; + int freq_table_sz; + int pltfm_freq_table_sz; + u32 *freq_table; + u32 *pltfm_freq_table; + unsigned long total_busy_time_us; + unsigned long target_freq; + unsigned long curr_freq; + unsigned long polling_delay_ms; + unsigned int upthreshold; + unsigned int downthreshold; + unsigned int lower_bus_speed_mode; +#define MMC_SCALING_LOWER_DDR52_MODE 1 + bool need_freq_change; + bool clk_scaling_in_progress; + bool is_busy_started; + bool enable; +}; + +struct mmc_host { + struct device *parent; + struct device class_dev; + struct mmc_devfeq_clk_scaling clk_scaling; + int index; + const struct mmc_host_ops *ops; + const struct mmc_cmdq_host_ops *cmdq_ops; + struct mmc_pwrseq *pwrseq; + unsigned int f_min; + unsigned int f_max; + unsigned int f_init; + u32 ocr_avail; + u32 ocr_avail_sdio; /* SDIO-specific OCR */ + u32 ocr_avail_sd; /* SD-specific OCR */ + u32 ocr_avail_mmc; /* MMC-specific OCR */ + struct notifier_block pm_notify; + u32 max_current_330; + u32 max_current_300; + u32 max_current_180; + +#define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */ +#define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */ +#define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */ +#define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */ +#define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */ +#define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */ +#define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */ +#define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */ +#define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */ +#define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */ +#define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */ +#define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */ +#define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */ +#define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */ +#define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */ +#define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */ +#define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */ + + u32 caps; /* Host capabilities */ + +#define MMC_CAP_4_BIT_DATA (1 << 0) /* Can the host do 4 bit transfers */ +#define MMC_CAP_MMC_HIGHSPEED (1 << 1) /* Can do MMC high-speed timing */ +#define MMC_CAP_SD_HIGHSPEED (1 << 2) /* Can do SD high-speed timing */ +#define MMC_CAP_SDIO_IRQ (1 << 3) /* Can signal pending SDIO IRQs */ +#define MMC_CAP_SPI (1 << 4) /* Talks only SPI protocols */ +#define MMC_CAP_NEEDS_POLL (1 << 5) /* Needs polling for card-detection */ +#define MMC_CAP_8_BIT_DATA (1 << 6) /* Can the host do 8 bit transfers */ +#define MMC_CAP_AGGRESSIVE_PM (1 << 7) /* Suspend (e)MMC/SD at idle */ +#define MMC_CAP_NONREMOVABLE (1 << 8) /* Nonremovable e.g. eMMC */ +#define MMC_CAP_WAIT_WHILE_BUSY (1 << 9) /* Waits while card is busy */ +#define MMC_CAP_ERASE (1 << 10) /* Allow erase/trim commands */ +#define MMC_CAP_1_8V_DDR (1 << 11) /* can support */ + /* DDR mode at 1.8V */ +#define MMC_CAP_1_2V_DDR (1 << 12) /* can support */ + /* DDR mode at 1.2V */ +#define MMC_CAP_POWER_OFF_CARD (1 << 13) /* Can power off after boot */ +#define MMC_CAP_BUS_WIDTH_TEST (1 << 14) /* CMD14/CMD19 bus width ok */ +#define MMC_CAP_UHS_SDR12 (1 << 15) /* Host supports UHS SDR12 mode */ +#define MMC_CAP_UHS_SDR25 (1 << 16) /* Host supports UHS SDR25 mode */ +#define MMC_CAP_UHS_SDR50 (1 << 17) /* Host supports UHS SDR50 mode */ +#define MMC_CAP_UHS_SDR104 (1 << 18) /* Host supports UHS SDR104 mode */ +#define MMC_CAP_UHS_DDR50 (1 << 19) /* Host supports UHS DDR50 mode */ +#define MMC_CAP_RUNTIME_RESUME (1 << 20) /* Resume at runtime_resume. */ +#define MMC_CAP_DRIVER_TYPE_A (1 << 23) /* Host supports Driver Type A */ +#define MMC_CAP_DRIVER_TYPE_C (1 << 24) /* Host supports Driver Type C */ +#define MMC_CAP_DRIVER_TYPE_D (1 << 25) /* Host supports Driver Type D */ +#define MMC_CAP_CMD23 (1 << 30) /* CMD23 supported. */ +#define MMC_CAP_HW_RESET (1 << 31) /* Hardware reset */ + + u32 caps2; /* More host capabilities */ + u32 cached_caps2; + +#define MMC_CAP2_BOOTPART_NOACC (1 << 0) /* Boot partition no access */ +#define MMC_CAP2_FULL_PWR_CYCLE (1 << 2) /* Can do full power cycle */ +#define MMC_CAP2_HS200_1_8V_SDR (1 << 5) /* can support */ +#define MMC_CAP2_HS200_1_2V_SDR (1 << 6) /* can support */ +#define MMC_CAP2_HS200 (MMC_CAP2_HS200_1_8V_SDR | \ + MMC_CAP2_HS200_1_2V_SDR) +#define MMC_CAP2_HC_ERASE_SZ (1 << 9) /* High-capacity erase size */ +#define MMC_CAP2_CD_ACTIVE_HIGH (1 << 10) /* Card-detect signal active high */ +#define MMC_CAP2_RO_ACTIVE_HIGH (1 << 11) /* Write-protect signal active high */ +#define MMC_CAP2_PACKED_RD (1 << 12) /* Allow packed read */ +#define MMC_CAP2_PACKED_WR (1 << 13) /* Allow packed write */ +#define MMC_CAP2_PACKED_CMD (MMC_CAP2_PACKED_RD | \ + MMC_CAP2_PACKED_WR) +#define MMC_CAP2_NO_PRESCAN_POWERUP (1 << 14) /* Don't power up before scan */ +#define MMC_CAP2_HS400_1_8V (1 << 15) /* Can support HS400 1.8V */ +#define MMC_CAP2_HS400_1_2V (1 << 16) /* Can support HS400 1.2V */ +#define MMC_CAP2_HS400 (MMC_CAP2_HS400_1_8V | \ + MMC_CAP2_HS400_1_2V) +#define MMC_CAP2_HSX00_1_2V (MMC_CAP2_HS200_1_2V_SDR | MMC_CAP2_HS400_1_2V) +#define MMC_CAP2_SDIO_IRQ_NOTHREAD (1 << 17) +#define MMC_CAP2_NO_WRITE_PROTECT (1 << 18) /* No physical write protect pin, assume that card is always read-write */ +#define MMC_CAP2_PACKED_WR_CONTROL (1 << 19) /* Allow write packing control */ +#define MMC_CAP2_CLK_SCALE (1 << 20) /* Allow dynamic clk scaling */ +/* Allows Asynchronous SDIO irq while card is in 4-bit mode */ +#define MMC_CAP2_ASYNC_SDIO_IRQ_4BIT_MODE (1 << 21) +/* Some hosts need additional tuning */ +#define MMC_CAP2_HS400_POST_TUNING (1 << 22) +#define MMC_CAP2_NONHOTPLUG (1 << 25) /*Don't support hotplug*/ +#define MMC_CAP2_CMD_QUEUE (1 << 26) /* support eMMC command queue */ +#define MMC_CAP2_SANITIZE (1 << 27) /* Support Sanitize */ +#define MMC_CAP2_SLEEP_AWAKE (1 << 28) /* Use Sleep/Awake (CMD5) */ +/* use max discard ignoring max_busy_timeout parameter */ +#define MMC_CAP2_MAX_DISCARD_SIZE (1 << 29) + + mmc_pm_flag_t pm_caps; /* supported pm features */ + +#ifdef CONFIG_MMC_CLKGATE + int clk_requests; /* internal reference counter */ + unsigned int clk_delay; /* number of MCI clk hold cycles */ + bool clk_gated; /* clock gated */ + struct delayed_work clk_gate_work; /* delayed clock gate */ + unsigned int clk_old; /* old clock value cache */ + spinlock_t clk_lock; /* lock for clk fields */ + struct mutex clk_gate_mutex; /* mutex for clock gating */ + struct device_attribute clkgate_delay_attr; + unsigned long clkgate_delay; +#endif + + /* host specific block data */ + unsigned int max_seg_size; /* see blk_queue_max_segment_size */ + unsigned short max_segs; /* see blk_queue_max_segments */ + unsigned short unused; + unsigned int max_req_size; /* maximum number of bytes in one req */ + unsigned int max_blk_size; /* maximum size of one mmc block */ + unsigned int max_blk_count; /* maximum number of blocks in one req */ + unsigned int max_busy_timeout; /* max busy timeout in ms */ + + /* private data */ + spinlock_t lock; /* lock for claim and bus ops */ + + struct mmc_ios ios; /* current io bus settings */ + struct mmc_ios cached_ios; + + /* group bitfields together to minimize padding */ + unsigned int use_spi_crc:1; + unsigned int claimed:1; /* host exclusively claimed */ + unsigned int bus_dead:1; /* bus has been released */ +#ifdef CONFIG_MMC_DEBUG + unsigned int removed:1; /* host is being removed */ +#endif + unsigned int can_retune:1; /* re-tuning can be used */ + unsigned int doing_retune:1; /* re-tuning in progress */ + unsigned int retune_now:1; /* do re-tuning at next req */ + + int rescan_disable; /* disable card detection */ + int rescan_entered; /* used with nonremovable devices */ + + int need_retune; /* re-tuning is needed */ + int hold_retune; /* hold off re-tuning */ + unsigned int retune_period; /* re-tuning period in secs */ + struct timer_list retune_timer; /* for periodic re-tuning */ + + bool trigger_card_event; /* card_event necessary */ + + struct mmc_card *card; /* device attached to this host */ + + wait_queue_head_t wq; + struct task_struct *claimer; /* task that has host claimed */ + struct task_struct *suspend_task; + int claim_cnt; /* "claim" nesting count */ + + struct delayed_work detect; + int detect_change; /* card detect flag */ + struct mmc_slot slot; + + const struct mmc_bus_ops *bus_ops; /* current bus driver */ + unsigned int bus_refs; /* reference counter */ + + unsigned int bus_resume_flags; +#define MMC_BUSRESUME_MANUAL_RESUME (1 << 0) +#define MMC_BUSRESUME_NEEDS_RESUME (1 << 1) + bool ignore_bus_resume_flags; + + unsigned int sdio_irqs; + struct task_struct *sdio_irq_thread; + bool sdio_irq_pending; + atomic_t sdio_irq_thread_abort; + + mmc_pm_flag_t pm_flags; /* requested pm features */ + + struct led_trigger *led; /* activity led */ + +#ifdef CONFIG_REGULATOR + bool regulator_enabled; /* regulator state */ +#endif + struct mmc_supply supply; + + struct dentry *debugfs_root; + + bool err_occurred; + + struct mmc_async_req *areq; /* active async req */ + struct mmc_context_info context_info; /* async synchronization info */ + +#ifdef CONFIG_FAIL_MMC_REQUEST + struct fault_attr fail_mmc_request; +#endif + + unsigned int actual_clock; /* Actual HC clock rate */ + + unsigned int slotno; /* used for sdio acpi binding */ + + int dsr_req; /* DSR value is valid */ + u32 dsr; /* optional driver stage (DSR) value */ + +#ifdef CONFIG_MMC_EMBEDDED_SDIO + struct { + struct sdio_cis *cis; + struct sdio_cccr *cccr; + struct sdio_embedded_func *funcs; + int num_funcs; + } embedded_sdio_data; +#endif + /* + * Set to 1 to just stop the SDCLK to the card without + * actually disabling the clock from it's source. + */ + bool card_clock_off; + +#ifdef CONFIG_MMC_PERF_PROFILING + struct { + + unsigned long rbytes_drv; /* Rd bytes MMC Host */ + unsigned long wbytes_drv; /* Wr bytes MMC Host */ + ktime_t rtime_drv; /* Rd time MMC Host */ + ktime_t wtime_drv; /* Wr time MMC Host */ + ktime_t start; + } perf; + bool perf_enable; +#endif + struct mmc_trace_buffer trace_buf; + enum dev_state dev_status; + bool wakeup_on_idle; + struct mmc_cmdq_context_info cmdq_ctx; + int num_cq_slots; + int dcmd_cq_slot; + bool cmdq_thist_enabled; + /* + * several cmdq supporting host controllers are extensions + * of legacy controllers. This variable can be used to store + * a reference to the cmdq extension of the existing host + * controller. + */ + void *cmdq_private; + struct mmc_request *err_mrq; +#ifdef CONFIG_BLOCK + int latency_hist_enabled; + struct io_latency_state io_lat_read; + struct io_latency_state io_lat_write; +#endif + + bool sdr104_wa; + atomic_t rpmb_req_pending; + struct mutex rpmb_req_mutex; + unsigned long private[0] ____cacheline_aligned; +}; + +struct mmc_host *mmc_alloc_host(int extra, struct device *); +extern bool mmc_host_may_gate_card(struct mmc_card *); +int mmc_add_host(struct mmc_host *); +void mmc_remove_host(struct mmc_host *); +void mmc_free_host(struct mmc_host *); +int mmc_of_parse(struct mmc_host *host); + +#ifdef CONFIG_MMC_EMBEDDED_SDIO +extern void mmc_set_embedded_sdio_data(struct mmc_host *host, + struct sdio_cis *cis, + struct sdio_cccr *cccr, + struct sdio_embedded_func *funcs, + int num_funcs); +#endif + +static inline void *mmc_priv(struct mmc_host *host) +{ + return (void *)host->private; +} + +static inline void *mmc_cmdq_private(struct mmc_host *host) +{ + return host->cmdq_private; +} + +#define mmc_host_is_spi(host) ((host)->caps & MMC_CAP_SPI) + +#define mmc_dev(x) ((x)->parent) +#define mmc_classdev(x) (&(x)->class_dev) +#define mmc_hostname(x) (dev_name(&(x)->class_dev)) +#define mmc_bus_needs_resume(host) ((host)->bus_resume_flags & \ + MMC_BUSRESUME_NEEDS_RESUME) +#define mmc_bus_manual_resume(host) ((host)->bus_resume_flags & \ + MMC_BUSRESUME_MANUAL_RESUME) + +#ifdef CONFIG_MMC_BLOCK_DEFERRED_RESUME +static inline void mmc_set_bus_resume_policy(struct mmc_host *host, int manual) +{ + if (manual) + host->bus_resume_flags |= MMC_BUSRESUME_MANUAL_RESUME; + else + host->bus_resume_flags &= ~MMC_BUSRESUME_MANUAL_RESUME; +} +#else +static inline void mmc_set_bus_resume_policy(struct mmc_host *host, int manual) +{ +} +#endif + +extern int mmc_resume_bus(struct mmc_host *host); + +int mmc_power_save_host(struct mmc_host *host); +int mmc_power_restore_host(struct mmc_host *host); + +void mmc_detect_change(struct mmc_host *, unsigned long delay); +void mmc_request_done(struct mmc_host *, struct mmc_request *); + +static inline void mmc_signal_sdio_irq(struct mmc_host *host) +{ + host->ops->enable_sdio_irq(host, 0); + host->sdio_irq_pending = true; + if (host->sdio_irq_thread) + wake_up_process(host->sdio_irq_thread); +} + +void sdio_run_irqs(struct mmc_host *host); + +#ifdef CONFIG_REGULATOR +int mmc_regulator_get_ocrmask(struct regulator *supply); +int mmc_regulator_set_ocr(struct mmc_host *mmc, + struct regulator *supply, + unsigned short vdd_bit); +int mmc_regulator_set_vqmmc(struct mmc_host *mmc, struct mmc_ios *ios); +#else +static inline int mmc_regulator_get_ocrmask(struct regulator *supply) +{ + return 0; +} + +static inline int mmc_regulator_set_ocr(struct mmc_host *mmc, + struct regulator *supply, + unsigned short vdd_bit) +{ + return 0; +} + +static inline int mmc_regulator_set_vqmmc(struct mmc_host *mmc, + struct mmc_ios *ios) +{ + return -EINVAL; +} +#endif + +int mmc_regulator_get_supply(struct mmc_host *mmc); + +int mmc_pm_notify(struct notifier_block *notify_block, unsigned long, void *); + +static inline int mmc_card_is_removable(struct mmc_host *host) +{ + return !(host->caps & MMC_CAP_NONREMOVABLE); +} + +static inline int mmc_card_keep_power(struct mmc_host *host) +{ + return host->pm_flags & MMC_PM_KEEP_POWER; +} + +static inline int mmc_card_wake_sdio_irq(struct mmc_host *host) +{ + return host->pm_flags & MMC_PM_WAKE_SDIO_IRQ; +} + +static inline int mmc_host_cmd23(struct mmc_host *host) +{ + return host->caps & MMC_CAP_CMD23; +} + +static inline int mmc_boot_partition_access(struct mmc_host *host) +{ + return !(host->caps2 & MMC_CAP2_BOOTPART_NOACC); +} + +static inline bool mmc_card_and_host_support_async_int(struct mmc_host *host) +{ + return (host->card && (host->caps2 & MMC_CAP2_ASYNC_SDIO_IRQ_4BIT_MODE) + && (host->card->cccr.async_intr_sup)); +} + +static inline int mmc_host_uhs(struct mmc_host *host) +{ + return host->caps & + (MMC_CAP_UHS_SDR12 | MMC_CAP_UHS_SDR25 | + MMC_CAP_UHS_SDR50 | MMC_CAP_UHS_SDR104 | + MMC_CAP_UHS_DDR50); +} + +static inline void mmc_host_clear_sdr104(struct mmc_host *host) +{ + host->caps &= ~MMC_CAP_UHS_SDR104; +} + +static inline void mmc_host_set_sdr104(struct mmc_host *host) +{ + host->caps |= MMC_CAP_UHS_SDR104; +} + +static inline int mmc_host_packed_wr(struct mmc_host *host) +{ + return host->caps2 & MMC_CAP2_PACKED_WR; +} + +static inline void mmc_host_set_halt(struct mmc_host *host) +{ + set_bit(CMDQ_STATE_HALT, &host->cmdq_ctx.curr_state); +} + +static inline void mmc_host_clr_halt(struct mmc_host *host) +{ + clear_bit(CMDQ_STATE_HALT, &host->cmdq_ctx.curr_state); +} + +static inline int mmc_host_halt(struct mmc_host *host) +{ + return test_bit(CMDQ_STATE_HALT, &host->cmdq_ctx.curr_state); +} + +static inline void mmc_host_set_cq_disable(struct mmc_host *host) +{ + set_bit(CMDQ_STATE_CQ_DISABLE, &host->cmdq_ctx.curr_state); +} + +static inline void mmc_host_clr_cq_disable(struct mmc_host *host) +{ + clear_bit(CMDQ_STATE_CQ_DISABLE, &host->cmdq_ctx.curr_state); +} + +static inline int mmc_host_cq_disable(struct mmc_host *host) +{ + return test_bit(CMDQ_STATE_CQ_DISABLE, &host->cmdq_ctx.curr_state); +} + +#ifdef CONFIG_MMC_CLKGATE +void mmc_host_clk_hold(struct mmc_host *host); +void mmc_host_clk_release(struct mmc_host *host); +unsigned int mmc_host_clk_rate(struct mmc_host *host); + +#else +static inline void mmc_host_clk_hold(struct mmc_host *host) +{ +} + +static inline void mmc_host_clk_release(struct mmc_host *host) +{ +} + +static inline unsigned int mmc_host_clk_rate(struct mmc_host *host) +{ + return host->ios.clock; +} +#endif + +static inline int mmc_card_hs(struct mmc_card *card) +{ + return card->host->ios.timing == MMC_TIMING_SD_HS || + card->host->ios.timing == MMC_TIMING_MMC_HS; +} + +static inline int mmc_card_uhs(struct mmc_card *card) +{ + return card->host->ios.timing >= MMC_TIMING_UHS_SDR12 && + card->host->ios.timing <= MMC_TIMING_UHS_DDR50; +} + +static inline bool mmc_card_hs200(struct mmc_card *card) +{ + return card->host->ios.timing == MMC_TIMING_MMC_HS200; +} + +static inline bool mmc_card_ddr52(struct mmc_card *card) +{ + return card->host->ios.timing == MMC_TIMING_MMC_DDR52; +} + +static inline bool mmc_card_hs400(struct mmc_card *card) +{ + return card->host->ios.timing == MMC_TIMING_MMC_HS400; +} + +static inline bool mmc_card_hs400es(struct mmc_card *card) +{ + return card->host->ios.enhanced_strobe; +} + +void mmc_retune_enable(struct mmc_host *host); +void mmc_retune_disable(struct mmc_host *host); +void mmc_retune_timer_stop(struct mmc_host *host); + +static inline void mmc_retune_needed(struct mmc_host *host) +{ + if (host->can_retune) + host->need_retune = 1; +} + +static inline void mmc_retune_recheck(struct mmc_host *host) +{ + if (host->hold_retune <= 1) + host->retune_now = 1; +} + +#endif /* LINUX_MMC_HOST_H */ diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h new file mode 100644 index 000000000000..307a8e4be91f --- /dev/null +++ b/include/linux/mmc/mmc.h @@ -0,0 +1,412 @@ +/* + * Header for MultiMediaCard (MMC) + * + * Copyright 2002 Hewlett-Packard Company + * + * Use consistent with the GNU GPL is permitted, + * provided that this copyright notice is + * preserved in its entirety in all copies and derived works. + * + * HEWLETT-PACKARD COMPANY MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, + * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS + * FITNESS FOR ANY PARTICULAR PURPOSE. + * + * Many thanks to Alessandro Rubini and Jonathan Corbet! + * + * Based strongly on code by: + * + * Author: Yong-iL Joh <tolkien@mizi.com> + * + * Author: Andrew Christian + * 15 May 2002 + */ + +#ifndef LINUX_MMC_MMC_H +#define LINUX_MMC_MMC_H + +#include <uapi/linux/mmc/mmc.h> + +/* class 11 */ +#define MMC_CMDQ_TASK_MGMT 48 /* ac [31:0] task ID R1b */ +#define DISCARD_QUEUE 0x1 +#define DISCARD_TASK 0x2 + +static inline bool mmc_op_multi(u32 opcode) +{ + return opcode == MMC_WRITE_MULTIPLE_BLOCK || + opcode == MMC_READ_MULTIPLE_BLOCK; +} + +/* + * MMC_SWITCH argument format: + * + * [31:26] Always 0 + * [25:24] Access Mode + * [23:16] Location of target Byte in EXT_CSD + * [15:08] Value Byte + * [07:03] Always 0 + * [02:00] Command Set + */ + +/* + MMC status in R1, for native mode (SPI bits are different) + Type + e : error bit + s : status bit + r : detected and set for the actual command response + x : detected and set during command execution. the host must poll + the card by sending status command in order to read these bits. + Clear condition + a : according to the card state + b : always related to the previous command. Reception of + a valid command will clear it (with a delay of one command) + c : clear by read + */ + +#define R1_OUT_OF_RANGE (1 << 31) /* er, c */ +#define R1_ADDRESS_ERROR (1 << 30) /* erx, c */ +#define R1_BLOCK_LEN_ERROR (1 << 29) /* er, c */ +#define R1_ERASE_SEQ_ERROR (1 << 28) /* er, c */ +#define R1_ERASE_PARAM (1 << 27) /* ex, c */ +#define R1_WP_VIOLATION (1 << 26) /* erx, c */ +#define R1_CARD_IS_LOCKED (1 << 25) /* sx, a */ +#define R1_LOCK_UNLOCK_FAILED (1 << 24) /* erx, c */ +#define R1_COM_CRC_ERROR (1 << 23) /* er, b */ +#define R1_ILLEGAL_COMMAND (1 << 22) /* er, b */ +#define R1_CARD_ECC_FAILED (1 << 21) /* ex, c */ +#define R1_CC_ERROR (1 << 20) /* erx, c */ +#define R1_ERROR (1 << 19) /* erx, c */ +#define R1_UNDERRUN (1 << 18) /* ex, c */ +#define R1_OVERRUN (1 << 17) /* ex, c */ +#define R1_CID_CSD_OVERWRITE (1 << 16) /* erx, c, CID/CSD overwrite */ +#define R1_WP_ERASE_SKIP (1 << 15) /* sx, c */ +#define R1_CARD_ECC_DISABLED (1 << 14) /* sx, a */ +#define R1_ERASE_RESET (1 << 13) /* sr, c */ +#define R1_STATUS(x) (x & 0xFFFFE000) +#define R1_CURRENT_STATE(x) ((x & 0x00001E00) >> 9) /* sx, b (4 bits) */ +#define R1_READY_FOR_DATA (1 << 8) /* sx, a */ +#define R1_SWITCH_ERROR (1 << 7) /* sx, c */ +#define R1_EXCEPTION_EVENT (1 << 6) /* sr, a */ +#define R1_APP_CMD (1 << 5) /* sr, c */ + +#define R1_STATE_IDLE 0 +#define R1_STATE_READY 1 +#define R1_STATE_IDENT 2 +#define R1_STATE_STBY 3 +#define R1_STATE_TRAN 4 +#define R1_STATE_DATA 5 +#define R1_STATE_RCV 6 +#define R1_STATE_PRG 7 +#define R1_STATE_DIS 8 + +/* + * MMC/SD in SPI mode reports R1 status always, and R2 for SEND_STATUS + * R1 is the low order byte; R2 is the next highest byte, when present. + */ +#define R1_SPI_IDLE (1 << 0) +#define R1_SPI_ERASE_RESET (1 << 1) +#define R1_SPI_ILLEGAL_COMMAND (1 << 2) +#define R1_SPI_COM_CRC (1 << 3) +#define R1_SPI_ERASE_SEQ (1 << 4) +#define R1_SPI_ADDRESS (1 << 5) +#define R1_SPI_PARAMETER (1 << 6) +/* R1 bit 7 is always zero */ +#define R2_SPI_CARD_LOCKED (1 << 8) +#define R2_SPI_WP_ERASE_SKIP (1 << 9) /* or lock/unlock fail */ +#define R2_SPI_LOCK_UNLOCK_FAIL R2_SPI_WP_ERASE_SKIP +#define R2_SPI_ERROR (1 << 10) +#define R2_SPI_CC_ERROR (1 << 11) +#define R2_SPI_CARD_ECC_ERROR (1 << 12) +#define R2_SPI_WP_VIOLATION (1 << 13) +#define R2_SPI_ERASE_PARAM (1 << 14) +#define R2_SPI_OUT_OF_RANGE (1 << 15) /* or CSD overwrite */ +#define R2_SPI_CSD_OVERWRITE R2_SPI_OUT_OF_RANGE + +/* These are unpacked versions of the actual responses */ + +struct _mmc_csd { + u8 csd_structure; + u8 spec_vers; + u8 taac; + u8 nsac; + u8 tran_speed; + u16 ccc; + u8 read_bl_len; + u8 read_bl_partial; + u8 write_blk_misalign; + u8 read_blk_misalign; + u8 dsr_imp; + u16 c_size; + u8 vdd_r_curr_min; + u8 vdd_r_curr_max; + u8 vdd_w_curr_min; + u8 vdd_w_curr_max; + u8 c_size_mult; + union { + struct { /* MMC system specification version 3.1 */ + u8 erase_grp_size; + u8 erase_grp_mult; + } v31; + struct { /* MMC system specification version 2.2 */ + u8 sector_size; + u8 erase_grp_size; + } v22; + } erase; + u8 wp_grp_size; + u8 wp_grp_enable; + u8 default_ecc; + u8 r2w_factor; + u8 write_bl_len; + u8 write_bl_partial; + u8 file_format_grp; + u8 copy; + u8 perm_write_protect; + u8 tmp_write_protect; + u8 file_format; + u8 ecc; +}; + +/* + * OCR bits are mostly in host.h + */ +#define MMC_CARD_BUSY 0x80000000 /* Card Power up status bit */ +#define MMC_CARD_SECTOR_ADDR 0x40000000 /* Card supports sectors */ + +/* + * Card Command Classes (CCC) + */ +#define CCC_BASIC (1<<0) /* (0) Basic protocol functions */ + /* (CMD0,1,2,3,4,7,9,10,12,13,15) */ + /* (and for SPI, CMD58,59) */ +#define CCC_STREAM_READ (1<<1) /* (1) Stream read commands */ + /* (CMD11) */ +#define CCC_BLOCK_READ (1<<2) /* (2) Block read commands */ + /* (CMD16,17,18) */ +#define CCC_STREAM_WRITE (1<<3) /* (3) Stream write commands */ + /* (CMD20) */ +#define CCC_BLOCK_WRITE (1<<4) /* (4) Block write commands */ + /* (CMD16,24,25,26,27) */ +#define CCC_ERASE (1<<5) /* (5) Ability to erase blocks */ + /* (CMD32,33,34,35,36,37,38,39) */ +#define CCC_WRITE_PROT (1<<6) /* (6) Able to write protect blocks */ + /* (CMD28,29,30) */ +#define CCC_LOCK_CARD (1<<7) /* (7) Able to lock down card */ + /* (CMD16,CMD42) */ +#define CCC_APP_SPEC (1<<8) /* (8) Application specific */ + /* (CMD55,56,57,ACMD*) */ +#define CCC_IO_MODE (1<<9) /* (9) I/O mode */ + /* (CMD5,39,40,52,53) */ +#define CCC_SWITCH (1<<10) /* (10) High speed switch */ + /* (CMD6,34,35,36,37,50) */ + /* (11) Reserved */ + /* (CMD?) */ + +/* + * CSD field definitions + */ + +#define CSD_STRUCT_VER_1_0 0 /* Valid for system specification 1.0 - 1.2 */ +#define CSD_STRUCT_VER_1_1 1 /* Valid for system specification 1.4 - 2.2 */ +#define CSD_STRUCT_VER_1_2 2 /* Valid for system specification 3.1 - 3.2 - 3.31 - 4.0 - 4.1 */ +#define CSD_STRUCT_EXT_CSD 3 /* Version is coded in CSD_STRUCTURE in EXT_CSD */ + +#define CSD_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.2 */ +#define CSD_SPEC_VER_1 1 /* Implements system specification 1.4 */ +#define CSD_SPEC_VER_2 2 /* Implements system specification 2.0 - 2.2 */ +#define CSD_SPEC_VER_3 3 /* Implements system specification 3.1 - 3.2 - 3.31 */ +#define CSD_SPEC_VER_4 4 /* Implements system specification 4.0 - 4.1 */ + +/* + * EXT_CSD fields + */ + +#define EXT_CSD_CMDQ 15 /* R/W */ +#define EXT_CSD_BARRIER_CTRL 31 /* R/W */ +#define EXT_CSD_FLUSH_CACHE 32 /* W */ +#define EXT_CSD_CACHE_CTRL 33 /* R/W */ +#define EXT_CSD_POWER_OFF_NOTIFICATION 34 /* R/W */ +#define EXT_CSD_PACKED_FAILURE_INDEX 35 /* RO */ +#define EXT_CSD_PACKED_CMD_STATUS 36 /* RO */ +#define EXT_CSD_EXP_EVENTS_STATUS 54 /* RO, 2 bytes */ +#define EXT_CSD_EXP_EVENTS_CTRL 56 /* R/W, 2 bytes */ +#define EXT_CSD_DATA_SECTOR_SIZE 61 /* R */ +#define EXT_CSD_GP_SIZE_MULT 143 /* R/W */ +#define EXT_CSD_PARTITION_SETTING_COMPLETED 155 /* R/W */ +#define EXT_CSD_PARTITION_ATTRIBUTE 156 /* R/W */ +#define EXT_CSD_PARTITION_SUPPORT 160 /* RO */ +#define EXT_CSD_HPI_MGMT 161 /* R/W */ +#define EXT_CSD_RST_N_FUNCTION 162 /* R/W */ +#define EXT_CSD_BKOPS_EN 163 /* R/W */ +#define EXT_CSD_BKOPS_START 164 /* W */ +#define EXT_CSD_SANITIZE_START 165 /* W */ +#define EXT_CSD_WR_REL_PARAM 166 /* RO */ +#define EXT_CSD_RPMB_MULT 168 /* RO */ +#define EXT_CSD_FW_CONFIG 169 /* R/W */ +#define EXT_CSD_BOOT_WP 173 /* R/W */ +#define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */ +#define EXT_CSD_PART_CONFIG 179 /* R/W */ +#define EXT_CSD_ERASED_MEM_CONT 181 /* RO */ +#define EXT_CSD_BUS_WIDTH 183 /* R/W */ +#define EXT_CSD_STROBE_SUPPORT 184 /* RO */ +#define EXT_CSD_HS_TIMING 185 /* R/W */ +#define EXT_CSD_POWER_CLASS 187 /* R/W */ +#define EXT_CSD_REV 192 /* RO */ +#define EXT_CSD_STRUCTURE 194 /* RO */ +#define EXT_CSD_CARD_TYPE 196 /* RO */ +#define EXT_CSD_DRIVER_STRENGTH 197 /* RO */ +#define EXT_CSD_OUT_OF_INTERRUPT_TIME 198 /* RO */ +#define EXT_CSD_PART_SWITCH_TIME 199 /* RO */ +#define EXT_CSD_PWR_CL_52_195 200 /* RO */ +#define EXT_CSD_PWR_CL_26_195 201 /* RO */ +#define EXT_CSD_PWR_CL_52_360 202 /* RO */ +#define EXT_CSD_PWR_CL_26_360 203 /* RO */ +#define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */ +#define EXT_CSD_S_A_TIMEOUT 217 /* RO */ +#define EXT_CSD_REL_WR_SEC_C 222 /* RO */ +#define EXT_CSD_HC_WP_GRP_SIZE 221 /* RO */ +#define EXT_CSD_ERASE_TIMEOUT_MULT 223 /* RO */ +#define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */ +#define EXT_CSD_BOOT_MULT 226 /* RO */ +#define EXT_CSD_SEC_TRIM_MULT 229 /* RO */ +#define EXT_CSD_SEC_ERASE_MULT 230 /* RO */ +#define EXT_CSD_SEC_FEATURE_SUPPORT 231 /* RO */ +#define EXT_CSD_TRIM_MULT 232 /* RO */ +#define EXT_CSD_PWR_CL_200_195 236 /* RO */ +#define EXT_CSD_PWR_CL_200_360 237 /* RO */ +#define EXT_CSD_PWR_CL_DDR_52_195 238 /* RO */ +#define EXT_CSD_PWR_CL_DDR_52_360 239 /* RO */ +#define EXT_CSD_CACHE_FLUSH_POLICY 240 /* RO */ +#define EXT_CSD_BKOPS_STATUS 246 /* RO */ +#define EXT_CSD_POWER_OFF_LONG_TIME 247 /* RO */ +#define EXT_CSD_GENERIC_CMD6_TIME 248 /* RO */ +#define EXT_CSD_CACHE_SIZE 249 /* RO, 4 bytes */ +#define EXT_CSD_PWR_CL_DDR_200_360 253 /* RO */ +#define EXT_CSD_FIRMWARE_VERSION 254 /* RO, 8 bytes */ +#define EXT_CSD_PRE_EOL_INFO 267 /* RO */ +#define EXT_CSD_DEVICE_LIFE_TIME_EST_TYP_A 268 /* RO */ +#define EXT_CSD_DEVICE_LIFE_TIME_EST_TYP_B 269 /* RO */ +#define EXT_CSD_CMDQ_DEPTH 307 /* RO */ +#define EXT_CSD_CMDQ_SUPPORT 308 /* RO */ +#define EXT_CSD_BARRIER_SUPPORT 486 /* RO */ + #define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */ +#define EXT_CSD_SUPPORTED_MODE 493 /* RO */ +#define EXT_CSD_TAG_UNIT_SIZE 498 /* RO */ +#define EXT_CSD_DATA_TAG_SUPPORT 499 /* RO */ +#define EXT_CSD_MAX_PACKED_WRITES 500 /* RO */ +#define EXT_CSD_MAX_PACKED_READS 501 /* RO */ +#define EXT_CSD_BKOPS_SUPPORT 502 /* RO */ +#define EXT_CSD_HPI_FEATURES 503 /* RO */ + +/* + * EXT_CSD field definitions + */ + +#define EXT_CSD_WR_REL_PARAM_EN (1<<2) +#define EXT_CSD_WR_REL_PARAM_EN_RPMB_REL_WR (1<<4) + +#define EXT_CSD_BOOT_WP_B_PWR_WP_DIS (0x40) +#define EXT_CSD_BOOT_WP_B_PERM_WP_DIS (0x10) +#define EXT_CSD_BOOT_WP_B_PERM_WP_EN (0x04) +#define EXT_CSD_BOOT_WP_B_PWR_WP_EN (0x01) + +#define EXT_CSD_PART_CONFIG_ACC_MASK (0x7) +#define EXT_CSD_PART_CONFIG_ACC_BOOT0 (0x1) +#define EXT_CSD_PART_CONFIG_ACC_RPMB (0x3) +#define EXT_CSD_PART_CONFIG_ACC_GP0 (0x4) + +#define EXT_CSD_PART_SETTING_COMPLETED (0x1) +#define EXT_CSD_PART_SUPPORT_PART_EN (0x1) + +#define EXT_CSD_CMD_SET_NORMAL (1<<0) +#define EXT_CSD_CMD_SET_SECURE (1<<1) +#define EXT_CSD_CMD_SET_CPSECURE (1<<2) + +#define EXT_CSD_CARD_TYPE_HS_26 (1<<0) /* Card can run at 26MHz */ +#define EXT_CSD_CARD_TYPE_HS_52 (1<<1) /* Card can run at 52MHz */ +#define EXT_CSD_CARD_TYPE_HS (EXT_CSD_CARD_TYPE_HS_26 | \ + EXT_CSD_CARD_TYPE_HS_52) +#define EXT_CSD_CARD_TYPE_DDR_1_8V (1<<2) /* Card can run at 52MHz */ + /* DDR mode @1.8V or 3V I/O */ +#define EXT_CSD_CARD_TYPE_DDR_1_2V (1<<3) /* Card can run at 52MHz */ + /* DDR mode @1.2V I/O */ +#define EXT_CSD_CARD_TYPE_DDR_52 (EXT_CSD_CARD_TYPE_DDR_1_8V \ + | EXT_CSD_CARD_TYPE_DDR_1_2V) +#define EXT_CSD_CARD_TYPE_HS200_1_8V (1<<4) /* Card can run at 200MHz */ +#define EXT_CSD_CARD_TYPE_HS200_1_2V (1<<5) /* Card can run at 200MHz */ + /* SDR mode @1.2V I/O */ +#define EXT_CSD_CARD_TYPE_HS200 (EXT_CSD_CARD_TYPE_HS200_1_8V | \ + EXT_CSD_CARD_TYPE_HS200_1_2V) +#define EXT_CSD_CARD_TYPE_HS400_1_8V (1<<6) /* Card can run at 200MHz DDR, 1.8V */ +#define EXT_CSD_CARD_TYPE_HS400_1_2V (1<<7) /* Card can run at 200MHz DDR, 1.2V */ +#define EXT_CSD_CARD_TYPE_HS400 (EXT_CSD_CARD_TYPE_HS400_1_8V | \ + EXT_CSD_CARD_TYPE_HS400_1_2V) + +#define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */ +#define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */ +#define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */ +#define EXT_CSD_DDR_BUS_WIDTH_4 5 /* Card is in 4 bit DDR mode */ +#define EXT_CSD_DDR_BUS_WIDTH_8 6 /* Card is in 8 bit DDR mode */ +#define EXT_CSD_BUS_WIDTH_STROBE 0x80 /* Card is in 8 bit DDR mode */ + +#define EXT_CSD_TIMING_BC 0 /* Backwards compatility */ +#define EXT_CSD_TIMING_HS 1 /* High speed */ +#define EXT_CSD_TIMING_HS200 2 /* HS200 */ +#define EXT_CSD_TIMING_HS400 3 /* HS400 */ +#define EXT_CSD_DRV_STR_SHIFT 4 /* Driver Strength shift */ + +#define EXT_CSD_SEC_ER_EN BIT(0) +#define EXT_CSD_SEC_BD_BLK_EN BIT(2) +#define EXT_CSD_SEC_GB_CL_EN BIT(4) +#define EXT_CSD_SEC_SANITIZE BIT(6) /* v4.5 only */ + +#define EXT_CSD_RST_N_EN_MASK 0x3 +#define EXT_CSD_RST_N_ENABLED 1 /* RST_n is enabled on card */ + +#define EXT_CSD_NO_POWER_NOTIFICATION 0 +#define EXT_CSD_POWER_ON 1 +#define EXT_CSD_POWER_OFF_SHORT 2 +#define EXT_CSD_POWER_OFF_LONG 3 + +#define EXT_CSD_PWR_CL_8BIT_MASK 0xF0 /* 8 bit PWR CLS */ +#define EXT_CSD_PWR_CL_4BIT_MASK 0x0F /* 8 bit PWR CLS */ +#define EXT_CSD_PWR_CL_8BIT_SHIFT 4 +#define EXT_CSD_PWR_CL_4BIT_SHIFT 0 + +#define EXT_CSD_PACKED_EVENT_EN BIT(3) + +#define EXT_CSD_BKOPS_MANUAL_EN BIT(0) +#define EXT_CSD_BKOPS_AUTO_EN BIT(1) + +/* + * EXCEPTION_EVENT_STATUS field + */ +#define EXT_CSD_URGENT_BKOPS BIT(0) +#define EXT_CSD_DYNCAP_NEEDED BIT(1) +#define EXT_CSD_SYSPOOL_EXHAUSTED BIT(2) +#define EXT_CSD_PACKED_FAILURE BIT(3) + +#define EXT_CSD_PACKED_GENERIC_ERROR BIT(0) +#define EXT_CSD_PACKED_INDEXED_ERROR BIT(1) + +/* + * BKOPS status level + */ +#define EXT_CSD_BKOPS_LEVEL_2 0x2 + +/* + * BKOPS modes + */ +#define EXT_CSD_MANUAL_BKOPS_MASK 0x01 + +/* + * MMC_SWITCH access modes + */ + +#define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */ +#define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits which are 1 in value */ +#define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits which are 1 in value */ +#define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target to value */ + +#define mmc_driver_type_mask(n) (1 << (n)) + +#endif /* LINUX_MMC_MMC_H */ diff --git a/include/linux/mmc/pm.h b/include/linux/mmc/pm.h new file mode 100644 index 000000000000..6e2d6a135c7e --- /dev/null +++ b/include/linux/mmc/pm.h @@ -0,0 +1,31 @@ +/* + * linux/include/linux/mmc/pm.h + * + * Author: Nicolas Pitre + * Copyright: (C) 2009 Marvell Technology Group Ltd. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef LINUX_MMC_PM_H +#define LINUX_MMC_PM_H + +/* + * These flags are used to describe power management features that + * some cards (typically SDIO cards) might wish to benefit from when + * the host system is being suspended. There are several layers of + * abstractions involved, from the host controller driver, to the MMC core + * code, to the SDIO core code, to finally get to the actual SDIO function + * driver. This file is therefore used for common definitions shared across + * all those layers. + */ + +typedef unsigned int mmc_pm_flag_t; + +#define MMC_PM_KEEP_POWER (1 << 0) /* preserve card power during suspend */ +#define MMC_PM_WAKE_SDIO_IRQ (1 << 1) /* wake up host system on SDIO IRQ assertion */ +#define MMC_PM_IGNORE_PM_NOTIFY (1 << 2) /* ignore mmc pm notify */ + +#endif /* LINUX_MMC_PM_H */ diff --git a/include/linux/mmc/ring_buffer.h b/include/linux/mmc/ring_buffer.h new file mode 100644 index 000000000000..e6bf163ffcfe --- /dev/null +++ b/include/linux/mmc/ring_buffer.h @@ -0,0 +1,55 @@ +/* + * Copyright (c) 2017, The Linux Foundation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 and + * only version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#ifndef __MMC_RING_BUFFER__ +#define __MMC_RING_BUFFER__ + +#include <linux/mmc/card.h> +#include <linux/smp.h> + +#include "core.h" + +#define MMC_TRACE_RBUF_SZ_ORDER 2 /* 2^2 pages */ +#define MMC_TRACE_RBUF_SZ (PAGE_SIZE * (1 << MMC_TRACE_RBUF_SZ_ORDER)) +#define MMC_TRACE_EVENT_SZ 256 +#define MMC_TRACE_RBUF_NUM_EVENTS (MMC_TRACE_RBUF_SZ / MMC_TRACE_EVENT_SZ) + +struct mmc_host; +struct mmc_trace_buffer { + int wr_idx; + bool stop_tracing; + spinlock_t trace_lock; + char *data; +}; + +#ifdef CONFIG_MMC_RING_BUFFER +void mmc_stop_tracing(struct mmc_host *mmc); +void mmc_trace_write(struct mmc_host *mmc, const char *fmt, ...); +void mmc_trace_init(struct mmc_host *mmc); +void mmc_trace_free(struct mmc_host *mmc); +void mmc_dump_trace_buffer(struct mmc_host *mmc, struct seq_file *s); +#else +static inline void mmc_stop_tracing(struct mmc_host *mmc) {} +static inline void mmc_trace_write(struct mmc_host *mmc, + const char *fmt, ...) {} +static inline void mmc_trace_init(struct mmc_host *mmc) {} +static inline void mmc_trace_free(struct mmc_host *mmc) {} +static inline void mmc_dump_trace_buffer(struct mmc_host *mmc, + struct seq_file *s) {} +#endif + +#define MMC_TRACE(mmc, fmt, ...) \ + mmc_trace_write(mmc, fmt, ##__VA_ARGS__) + +#endif /* __MMC_RING_BUFFER__ */ diff --git a/include/linux/mmc/sd.h b/include/linux/mmc/sd.h new file mode 100644 index 000000000000..1ebcf9ba1256 --- /dev/null +++ b/include/linux/mmc/sd.h @@ -0,0 +1,94 @@ +/* + * include/linux/mmc/sd.h + * + * Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + */ + +#ifndef LINUX_MMC_SD_H +#define LINUX_MMC_SD_H + +/* SD commands type argument response */ + /* class 0 */ +/* This is basically the same command as for MMC with some quirks. */ +#define SD_SEND_RELATIVE_ADDR 3 /* bcr R6 */ +#define SD_SEND_IF_COND 8 /* bcr [11:0] See below R7 */ +#define SD_SWITCH_VOLTAGE 11 /* ac R1 */ + + /* class 10 */ +#define SD_SWITCH 6 /* adtc [31:0] See below R1 */ + + /* class 5 */ +#define SD_ERASE_WR_BLK_START 32 /* ac [31:0] data addr R1 */ +#define SD_ERASE_WR_BLK_END 33 /* ac [31:0] data addr R1 */ + + /* Application commands */ +#define SD_APP_SET_BUS_WIDTH 6 /* ac [1:0] bus width R1 */ +#define SD_APP_SD_STATUS 13 /* adtc R1 */ +#define SD_APP_SEND_NUM_WR_BLKS 22 /* adtc R1 */ +#define SD_APP_OP_COND 41 /* bcr [31:0] OCR R3 */ +#define SD_APP_SEND_SCR 51 /* adtc R1 */ + +/* OCR bit definitions */ +#define SD_OCR_S18R (1 << 24) /* 1.8V switching request */ +#define SD_ROCR_S18A SD_OCR_S18R /* 1.8V switching accepted by card */ +#define SD_OCR_XPC (1 << 28) /* SDXC power control */ +#define SD_OCR_CCS (1 << 30) /* Card Capacity Status */ + +/* + * SD_SWITCH argument format: + * + * [31] Check (0) or switch (1) + * [30:24] Reserved (0) + * [23:20] Function group 6 + * [19:16] Function group 5 + * [15:12] Function group 4 + * [11:8] Function group 3 + * [7:4] Function group 2 + * [3:0] Function group 1 + */ + +/* + * SD_SEND_IF_COND argument format: + * + * [31:12] Reserved (0) + * [11:8] Host Voltage Supply Flags + * [7:0] Check Pattern (0xAA) + */ + +/* + * SCR field definitions + */ + +#define SCR_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.01 */ +#define SCR_SPEC_VER_1 1 /* Implements system specification 1.10 */ +#define SCR_SPEC_VER_2 2 /* Implements system specification 2.00-3.0X */ + +/* + * SD bus widths + */ +#define SD_BUS_WIDTH_1 0 +#define SD_BUS_WIDTH_4 2 + +/* + * SD_SWITCH mode + */ +#define SD_SWITCH_CHECK 0 +#define SD_SWITCH_SET 1 + +/* + * SD_SWITCH function groups + */ +#define SD_SWITCH_GRP_ACCESS 0 + +/* + * SD_SWITCH access modes + */ +#define SD_SWITCH_ACCESS_DEF 0 +#define SD_SWITCH_ACCESS_HS 1 + +#endif /* LINUX_MMC_SD_H */ diff --git a/include/linux/mmc/sdhci-pci-data.h b/include/linux/mmc/sdhci-pci-data.h new file mode 100644 index 000000000000..fda15b6d4135 --- /dev/null +++ b/include/linux/mmc/sdhci-pci-data.h @@ -0,0 +1,20 @@ +#ifndef LINUX_MMC_SDHCI_PCI_DATA_H +#define LINUX_MMC_SDHCI_PCI_DATA_H + +struct pci_dev; + +struct sdhci_pci_data { + struct pci_dev *pdev; + int slotno; + int rst_n_gpio; /* Set to -EINVAL if unused */ + int cd_gpio; /* Set to -EINVAL if unused */ + int (*setup)(struct sdhci_pci_data *data); + void (*cleanup)(struct sdhci_pci_data *data); +}; + +extern struct sdhci_pci_data *(*sdhci_pci_get_data)(struct pci_dev *pdev, + int slotno); + +extern int sdhci_pci_spt_drive_strength; + +#endif diff --git a/include/linux/mmc/sdio.h b/include/linux/mmc/sdio.h new file mode 100644 index 000000000000..3fc07d701cd1 --- /dev/null +++ b/include/linux/mmc/sdio.h @@ -0,0 +1,198 @@ +/* + * include/linux/mmc/sdio.h + * + * Copyright 2006-2007 Pierre Ossman + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + */ + +#ifndef LINUX_MMC_SDIO_H +#define LINUX_MMC_SDIO_H + +/* SDIO commands type argument response */ +#define SD_IO_SEND_OP_COND 5 /* bcr [23:0] OCR R4 */ +#define SD_IO_RW_DIRECT 52 /* ac [31:0] See below R5 */ +#define SD_IO_RW_EXTENDED 53 /* adtc [31:0] See below R5 */ + +/* + * SD_IO_RW_DIRECT argument format: + * + * [31] R/W flag + * [30:28] Function number + * [27] RAW flag + * [25:9] Register address + * [7:0] Data + */ + +/* + * SD_IO_RW_EXTENDED argument format: + * + * [31] R/W flag + * [30:28] Function number + * [27] Block mode + * [26] Increment address + * [25:9] Register address + * [8:0] Byte/block count + */ + +#define R4_18V_PRESENT (1<<24) +#define R4_MEMORY_PRESENT (1 << 27) + +/* + SDIO status in R5 + Type + e : error bit + s : status bit + r : detected and set for the actual command response + x : detected and set during command execution. the host must poll + the card by sending status command in order to read these bits. + Clear condition + a : according to the card state + b : always related to the previous command. Reception of + a valid command will clear it (with a delay of one command) + c : clear by read + */ + +#define R5_COM_CRC_ERROR (1 << 15) /* er, b */ +#define R5_ILLEGAL_COMMAND (1 << 14) /* er, b */ +#define R5_ERROR (1 << 11) /* erx, c */ +#define R5_FUNCTION_NUMBER (1 << 9) /* er, c */ +#define R5_OUT_OF_RANGE (1 << 8) /* er, c */ +#define R5_STATUS(x) (x & 0xCB00) +#define R5_IO_CURRENT_STATE(x) ((x & 0x3000) >> 12) /* s, b */ + +/* + * Card Common Control Registers (CCCR) + */ + +#define SDIO_CCCR_CCCR 0x00 + +#define SDIO_CCCR_REV_1_00 0 /* CCCR/FBR Version 1.00 */ +#define SDIO_CCCR_REV_1_10 1 /* CCCR/FBR Version 1.10 */ +#define SDIO_CCCR_REV_1_20 2 /* CCCR/FBR Version 1.20 */ +#define SDIO_CCCR_REV_3_00 3 /* CCCR/FBR Version 3.00 */ + +#define SDIO_SDIO_REV_1_00 0 /* SDIO Spec Version 1.00 */ +#define SDIO_SDIO_REV_1_10 1 /* SDIO Spec Version 1.10 */ +#define SDIO_SDIO_REV_1_20 2 /* SDIO Spec Version 1.20 */ +#define SDIO_SDIO_REV_2_00 3 /* SDIO Spec Version 2.00 */ +#define SDIO_SDIO_REV_3_00 4 /* SDIO Spec Version 3.00 */ + +#define SDIO_CCCR_SD 0x01 + +#define SDIO_SD_REV_1_01 0 /* SD Physical Spec Version 1.01 */ +#define SDIO_SD_REV_1_10 1 /* SD Physical Spec Version 1.10 */ +#define SDIO_SD_REV_2_00 2 /* SD Physical Spec Version 2.00 */ +#define SDIO_SD_REV_3_00 3 /* SD Physical Spev Version 3.00 */ + +#define SDIO_CCCR_IOEx 0x02 +#define SDIO_CCCR_IORx 0x03 + +#define SDIO_CCCR_IENx 0x04 /* Function/Master Interrupt Enable */ +#define SDIO_CCCR_INTx 0x05 /* Function Interrupt Pending */ + +#define SDIO_CCCR_ABORT 0x06 /* function abort/card reset */ + +#define SDIO_CCCR_IF 0x07 /* bus interface controls */ + +#define SDIO_BUS_WIDTH_MASK 0x03 /* data bus width setting */ +#define SDIO_BUS_WIDTH_1BIT 0x00 +#define SDIO_BUS_WIDTH_RESERVED 0x01 +#define SDIO_BUS_WIDTH_4BIT 0x02 +#define SDIO_BUS_WIDTH_8BIT 0x03 +#define SDIO_BUS_ECSI 0x20 /* Enable continuous SPI interrupt */ +#define SDIO_BUS_SCSI 0x40 /* Support continuous SPI interrupt */ + +#define SDIO_BUS_ASYNC_INT 0x20 + +#define SDIO_BUS_CD_DISABLE 0x80 /* disable pull-up on DAT3 (pin 1) */ + +#define SDIO_CCCR_CAPS 0x08 + +#define SDIO_CCCR_CAP_SDC 0x01 /* can do CMD52 while data transfer */ +#define SDIO_CCCR_CAP_SMB 0x02 /* can do multi-block xfers (CMD53) */ +#define SDIO_CCCR_CAP_SRW 0x04 /* supports read-wait protocol */ +#define SDIO_CCCR_CAP_SBS 0x08 /* supports suspend/resume */ +#define SDIO_CCCR_CAP_S4MI 0x10 /* interrupt during 4-bit CMD53 */ +#define SDIO_CCCR_CAP_E4MI 0x20 /* enable ints during 4-bit CMD53 */ +#define SDIO_CCCR_CAP_LSC 0x40 /* low speed card */ +#define SDIO_CCCR_CAP_4BLS 0x80 /* 4 bit low speed card */ + +#define SDIO_CCCR_CIS 0x09 /* common CIS pointer (3 bytes) */ + +/* Following 4 regs are valid only if SBS is set */ +#define SDIO_CCCR_SUSPEND 0x0c +#define SDIO_CCCR_SELx 0x0d +#define SDIO_CCCR_EXECx 0x0e +#define SDIO_CCCR_READYx 0x0f + +#define SDIO_CCCR_BLKSIZE 0x10 + +#define SDIO_CCCR_POWER 0x12 + +#define SDIO_POWER_SMPC 0x01 /* Supports Master Power Control */ +#define SDIO_POWER_EMPC 0x02 /* Enable Master Power Control */ + +#define SDIO_CCCR_SPEED 0x13 + +#define SDIO_SPEED_SHS 0x01 /* Supports High-Speed mode */ +#define SDIO_SPEED_BSS_SHIFT 1 +#define SDIO_SPEED_BSS_MASK (7<<SDIO_SPEED_BSS_SHIFT) +#define SDIO_SPEED_SDR12 (0<<SDIO_SPEED_BSS_SHIFT) +#define SDIO_SPEED_SDR25 (1<<SDIO_SPEED_BSS_SHIFT) +#define SDIO_SPEED_SDR50 (2<<SDIO_SPEED_BSS_SHIFT) +#define SDIO_SPEED_SDR104 (3<<SDIO_SPEED_BSS_SHIFT) +#define SDIO_SPEED_DDR50 (4<<SDIO_SPEED_BSS_SHIFT) +#define SDIO_SPEED_EHS SDIO_SPEED_SDR25 /* Enable High-Speed */ + +#define SDIO_CCCR_UHS 0x14 +#define SDIO_UHS_SDR50 0x01 +#define SDIO_UHS_SDR104 0x02 +#define SDIO_UHS_DDR50 0x04 + +#define SDIO_CCCR_DRIVE_STRENGTH 0x15 +#define SDIO_SDTx_MASK 0x07 +#define SDIO_DRIVE_SDTA (1<<0) +#define SDIO_DRIVE_SDTC (1<<1) +#define SDIO_DRIVE_SDTD (1<<2) +#define SDIO_DRIVE_DTSx_MASK 0x03 +#define SDIO_DRIVE_DTSx_SHIFT 4 +#define SDIO_DTSx_SET_TYPE_B (0 << SDIO_DRIVE_DTSx_SHIFT) +#define SDIO_DTSx_SET_TYPE_A (1 << SDIO_DRIVE_DTSx_SHIFT) +#define SDIO_DTSx_SET_TYPE_C (2 << SDIO_DRIVE_DTSx_SHIFT) +#define SDIO_DTSx_SET_TYPE_D (3 << SDIO_DRIVE_DTSx_SHIFT) + +#define SDIO_CCCR_INTERRUPT_EXTENSION 0x16 +#define SDIO_SUPPORT_ASYNC_INTR (1<<0) +#define SDIO_ENABLE_ASYNC_INTR (1<<1) +/* + * Function Basic Registers (FBR) + */ + +#define SDIO_FBR_BASE(f) ((f) * 0x100) /* base of function f's FBRs */ + +#define SDIO_FBR_STD_IF 0x00 + +#define SDIO_FBR_SUPPORTS_CSA 0x40 /* supports Code Storage Area */ +#define SDIO_FBR_ENABLE_CSA 0x80 /* enable Code Storage Area */ + +#define SDIO_FBR_STD_IF_EXT 0x01 + +#define SDIO_FBR_POWER 0x02 + +#define SDIO_FBR_POWER_SPS 0x01 /* Supports Power Selection */ +#define SDIO_FBR_POWER_EPS 0x02 /* Enable (low) Power Selection */ + +#define SDIO_FBR_CIS 0x09 /* CIS pointer (3 bytes) */ + + +#define SDIO_FBR_CSA 0x0C /* CSA pointer (3 bytes) */ + +#define SDIO_FBR_CSA_DATA 0x0F + +#define SDIO_FBR_BLKSIZE 0x10 /* block size (2 bytes) */ + +#endif /* LINUX_MMC_SDIO_H */ diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h new file mode 100644 index 000000000000..f563bcf55e7f --- /dev/null +++ b/include/linux/mmc/sdio_func.h @@ -0,0 +1,172 @@ +/* + * include/linux/mmc/sdio_func.h + * + * Copyright 2007-2008 Pierre Ossman + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + */ + +#ifndef LINUX_MMC_SDIO_FUNC_H +#define LINUX_MMC_SDIO_FUNC_H + +#include <linux/device.h> +#include <linux/mod_devicetable.h> + +#include <linux/mmc/pm.h> + +struct mmc_card; +struct sdio_func; + +typedef void (sdio_irq_handler_t)(struct sdio_func *); + +/* + * Structure used to hold embedded SDIO device data from platform layer + */ +struct sdio_embedded_func { + uint8_t f_class; + uint32_t f_maxblksize; +}; + +/* + * SDIO function CIS tuple (unknown to the core) + */ +struct sdio_func_tuple { + struct sdio_func_tuple *next; + unsigned char code; + unsigned char size; + unsigned char data[0]; +}; + +/* + * SDIO function devices + */ +struct sdio_func { + struct mmc_card *card; /* the card this device belongs to */ + struct device dev; /* the device */ + sdio_irq_handler_t *irq_handler; /* IRQ callback */ + unsigned int num; /* function number */ + + unsigned char class; /* standard interface class */ + unsigned short vendor; /* vendor id */ + unsigned short device; /* device id */ + + unsigned max_blksize; /* maximum block size */ + unsigned cur_blksize; /* current block size */ + + unsigned enable_timeout; /* max enable timeout in msec */ + + unsigned int state; /* function state */ +#define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */ + + u8 *tmpbuf; /* DMA:able scratch buffer */ + + unsigned num_info; /* number of info strings */ + const char **info; /* info strings */ + + struct sdio_func_tuple *tuples; +}; + +#define sdio_func_present(f) ((f)->state & SDIO_STATE_PRESENT) + +#define sdio_func_set_present(f) ((f)->state |= SDIO_STATE_PRESENT) + +#define sdio_func_id(f) (dev_name(&(f)->dev)) + +#define sdio_get_drvdata(f) dev_get_drvdata(&(f)->dev) +#define sdio_set_drvdata(f,d) dev_set_drvdata(&(f)->dev, d) +#define dev_to_sdio_func(d) container_of(d, struct sdio_func, dev) + +/* + * SDIO function device driver + */ +struct sdio_driver { + char *name; + const struct sdio_device_id *id_table; + + int (*probe)(struct sdio_func *, const struct sdio_device_id *); + void (*remove)(struct sdio_func *); + + struct device_driver drv; +}; + +/** + * SDIO_DEVICE - macro used to describe a specific SDIO device + * @vend: the 16 bit manufacturer code + * @dev: the 16 bit function id + * + * This macro is used to create a struct sdio_device_id that matches a + * specific device. The class field will be set to SDIO_ANY_ID. + */ +#define SDIO_DEVICE(vend,dev) \ + .class = SDIO_ANY_ID, \ + .vendor = (vend), .device = (dev) + +/** + * SDIO_DEVICE_CLASS - macro used to describe a specific SDIO device class + * @dev_class: the 8 bit standard interface code + * + * This macro is used to create a struct sdio_device_id that matches a + * specific standard SDIO function type. The vendor and device fields will + * be set to SDIO_ANY_ID. + */ +#define SDIO_DEVICE_CLASS(dev_class) \ + .class = (dev_class), \ + .vendor = SDIO_ANY_ID, .device = SDIO_ANY_ID + +extern int sdio_register_driver(struct sdio_driver *); +extern void sdio_unregister_driver(struct sdio_driver *); + +/* + * SDIO I/O operations + */ +extern void sdio_claim_host(struct sdio_func *func); +extern void sdio_release_host(struct sdio_func *func); + +extern int sdio_enable_func(struct sdio_func *func); +extern int sdio_disable_func(struct sdio_func *func); + +extern int sdio_set_block_size(struct sdio_func *func, unsigned blksz); + +extern int sdio_claim_irq(struct sdio_func *func, sdio_irq_handler_t *handler); +extern int sdio_release_irq(struct sdio_func *func); + +extern unsigned int sdio_align_size(struct sdio_func *func, unsigned int sz); + +extern u8 sdio_readb(struct sdio_func *func, unsigned int addr, int *err_ret); +extern u8 sdio_readb_ext(struct sdio_func *func, unsigned int addr, int *err_ret, + unsigned in); +extern u16 sdio_readw(struct sdio_func *func, unsigned int addr, int *err_ret); +extern u32 sdio_readl(struct sdio_func *func, unsigned int addr, int *err_ret); + +extern int sdio_memcpy_fromio(struct sdio_func *func, void *dst, + unsigned int addr, int count); +extern int sdio_readsb(struct sdio_func *func, void *dst, + unsigned int addr, int count); + +extern void sdio_writeb(struct sdio_func *func, u8 b, + unsigned int addr, int *err_ret); +extern void sdio_writew(struct sdio_func *func, u16 b, + unsigned int addr, int *err_ret); +extern void sdio_writel(struct sdio_func *func, u32 b, + unsigned int addr, int *err_ret); + +extern u8 sdio_writeb_readb(struct sdio_func *func, u8 write_byte, + unsigned int addr, int *err_ret); + +extern int sdio_memcpy_toio(struct sdio_func *func, unsigned int addr, + void *src, int count); +extern int sdio_writesb(struct sdio_func *func, unsigned int addr, + void *src, int count); + +extern unsigned char sdio_f0_readb(struct sdio_func *func, + unsigned int addr, int *err_ret); +extern void sdio_f0_writeb(struct sdio_func *func, unsigned char b, + unsigned int addr, int *err_ret); + +extern mmc_pm_flag_t sdio_get_host_pm_caps(struct sdio_func *func); +extern int sdio_set_host_pm_flags(struct sdio_func *func, mmc_pm_flag_t flags); + +#endif /* LINUX_MMC_SDIO_FUNC_H */ diff --git a/include/linux/mmc/sdio_ids.h b/include/linux/mmc/sdio_ids.h new file mode 100644 index 000000000000..e0325706b76d --- /dev/null +++ b/include/linux/mmc/sdio_ids.h @@ -0,0 +1,62 @@ +/* + * SDIO Classes, Interface Types, Manufacturer IDs, etc. + */ + +#ifndef LINUX_MMC_SDIO_IDS_H +#define LINUX_MMC_SDIO_IDS_H + +/* + * Standard SDIO Function Interfaces + */ + +#define SDIO_CLASS_NONE 0x00 /* Not a SDIO standard interface */ +#define SDIO_CLASS_UART 0x01 /* standard UART interface */ +#define SDIO_CLASS_BT_A 0x02 /* Type-A BlueTooth std interface */ +#define SDIO_CLASS_BT_B 0x03 /* Type-B BlueTooth std interface */ +#define SDIO_CLASS_GPS 0x04 /* GPS standard interface */ +#define SDIO_CLASS_CAMERA 0x05 /* Camera standard interface */ +#define SDIO_CLASS_PHS 0x06 /* PHS standard interface */ +#define SDIO_CLASS_WLAN 0x07 /* WLAN interface */ +#define SDIO_CLASS_ATA 0x08 /* Embedded SDIO-ATA std interface */ +#define SDIO_CLASS_BT_AMP 0x09 /* Type-A Bluetooth AMP interface */ + +/* + * Vendors and devices. Sort key: vendor first, device next. + */ +#define SDIO_VENDOR_ID_BROADCOM 0x02d0 +#define SDIO_DEVICE_ID_BROADCOM_43143 0xa887 +#define SDIO_DEVICE_ID_BROADCOM_43241 0x4324 +#define SDIO_DEVICE_ID_BROADCOM_4329 0x4329 +#define SDIO_DEVICE_ID_BROADCOM_4330 0x4330 +#define SDIO_DEVICE_ID_BROADCOM_4334 0x4334 +#define SDIO_DEVICE_ID_BROADCOM_43340 0xa94c +#define SDIO_DEVICE_ID_BROADCOM_43341 0xa94d +#define SDIO_DEVICE_ID_BROADCOM_4335_4339 0x4335 +#define SDIO_DEVICE_ID_BROADCOM_43362 0xa962 +#define SDIO_DEVICE_ID_BROADCOM_43364 0xa9a4 +#define SDIO_DEVICE_ID_BROADCOM_43430 0xa9a6 +#define SDIO_DEVICE_ID_BROADCOM_4345 0x4345 +#define SDIO_DEVICE_ID_BROADCOM_4354 0x4354 + +#define SDIO_VENDOR_ID_INTEL 0x0089 +#define SDIO_DEVICE_ID_INTEL_IWMC3200WIMAX 0x1402 +#define SDIO_DEVICE_ID_INTEL_IWMC3200WIFI 0x1403 +#define SDIO_DEVICE_ID_INTEL_IWMC3200TOP 0x1404 +#define SDIO_DEVICE_ID_INTEL_IWMC3200GPS 0x1405 +#define SDIO_DEVICE_ID_INTEL_IWMC3200BT 0x1406 +#define SDIO_DEVICE_ID_INTEL_IWMC3200WIMAX_2G5 0x1407 + +#define SDIO_VENDOR_ID_MARVELL 0x02df +#define SDIO_DEVICE_ID_MARVELL_LIBERTAS 0x9103 +#define SDIO_DEVICE_ID_MARVELL_8688WLAN 0x9104 +#define SDIO_DEVICE_ID_MARVELL_8688BT 0x9105 + +#define SDIO_VENDOR_ID_SIANO 0x039a +#define SDIO_DEVICE_ID_SIANO_NOVA_B0 0x0201 +#define SDIO_DEVICE_ID_SIANO_NICE 0x0202 +#define SDIO_DEVICE_ID_SIANO_VEGA_A0 0x0300 +#define SDIO_DEVICE_ID_SIANO_VENICE 0x0301 +#define SDIO_DEVICE_ID_SIANO_NOVA_A0 0x1100 +#define SDIO_DEVICE_ID_SIANO_STELLAR 0x5347 + +#endif /* LINUX_MMC_SDIO_IDS_H */ diff --git a/include/linux/mmc/sh_mmcif.h b/include/linux/mmc/sh_mmcif.h new file mode 100644 index 000000000000..ccd8fb2cad52 --- /dev/null +++ b/include/linux/mmc/sh_mmcif.h @@ -0,0 +1,218 @@ +/* + * include/linux/mmc/sh_mmcif.h + * + * platform data for eMMC driver + * + * Copyright (C) 2010 Renesas Solutions Corp. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License. + * + */ + +#ifndef LINUX_MMC_SH_MMCIF_H +#define LINUX_MMC_SH_MMCIF_H + +#include <linux/io.h> +#include <linux/platform_device.h> + +/* + * MMCIF : CE_CLK_CTRL [19:16] + * 1000 : Peripheral clock / 512 + * 0111 : Peripheral clock / 256 + * 0110 : Peripheral clock / 128 + * 0101 : Peripheral clock / 64 + * 0100 : Peripheral clock / 32 + * 0011 : Peripheral clock / 16 + * 0010 : Peripheral clock / 8 + * 0001 : Peripheral clock / 4 + * 0000 : Peripheral clock / 2 + * 1111 : Peripheral clock (sup_pclk set '1') + */ + +struct sh_mmcif_plat_data { + int (*get_cd)(struct platform_device *pdef); + unsigned int slave_id_tx; /* embedded slave_id_[tr]x */ + unsigned int slave_id_rx; + bool use_cd_gpio : 1; + bool ccs_unsupported : 1; + bool clk_ctrl2_present : 1; + unsigned int cd_gpio; + u8 sup_pclk; /* 1 :SH7757, 0: SH7724/SH7372 */ + unsigned long caps; + u32 ocr; +}; + +#define MMCIF_CE_CMD_SET 0x00000000 +#define MMCIF_CE_ARG 0x00000008 +#define MMCIF_CE_ARG_CMD12 0x0000000C +#define MMCIF_CE_CMD_CTRL 0x00000010 +#define MMCIF_CE_BLOCK_SET 0x00000014 +#define MMCIF_CE_CLK_CTRL 0x00000018 +#define MMCIF_CE_BUF_ACC 0x0000001C +#define MMCIF_CE_RESP3 0x00000020 +#define MMCIF_CE_RESP2 0x00000024 +#define MMCIF_CE_RESP1 0x00000028 +#define MMCIF_CE_RESP0 0x0000002C +#define MMCIF_CE_RESP_CMD12 0x00000030 +#define MMCIF_CE_DATA 0x00000034 +#define MMCIF_CE_INT 0x00000040 +#define MMCIF_CE_INT_MASK 0x00000044 +#define MMCIF_CE_HOST_STS1 0x00000048 +#define MMCIF_CE_HOST_STS2 0x0000004C +#define MMCIF_CE_CLK_CTRL2 0x00000070 +#define MMCIF_CE_VERSION 0x0000007C + +/* CE_BUF_ACC */ +#define BUF_ACC_DMAWEN (1 << 25) +#define BUF_ACC_DMAREN (1 << 24) +#define BUF_ACC_BUSW_32 (0 << 17) +#define BUF_ACC_BUSW_16 (1 << 17) +#define BUF_ACC_ATYP (1 << 16) + +/* CE_CLK_CTRL */ +#define CLK_ENABLE (1 << 24) /* 1: output mmc clock */ +#define CLK_CLEAR (0xf << 16) +#define CLK_SUP_PCLK (0xf << 16) +#define CLKDIV_4 (1 << 16) /* mmc clock frequency. + * n: bus clock/(2^(n+1)) */ +#define CLKDIV_256 (7 << 16) /* mmc clock frequency. (see above) */ +#define SRSPTO_256 (2 << 12) /* resp timeout */ +#define SRBSYTO_29 (0xf << 8) /* resp busy timeout */ +#define SRWDTO_29 (0xf << 4) /* read/write timeout */ +#define SCCSTO_29 (0xf << 0) /* ccs timeout */ + +/* CE_VERSION */ +#define SOFT_RST_ON (1 << 31) +#define SOFT_RST_OFF 0 + +static inline u32 sh_mmcif_readl(void __iomem *addr, int reg) +{ + return __raw_readl(addr + reg); +} + +static inline void sh_mmcif_writel(void __iomem *addr, int reg, u32 val) +{ + __raw_writel(val, addr + reg); +} + +#define SH_MMCIF_BBS 512 /* boot block size */ + +static inline void sh_mmcif_boot_cmd_send(void __iomem *base, + unsigned long cmd, unsigned long arg) +{ + sh_mmcif_writel(base, MMCIF_CE_INT, 0); + sh_mmcif_writel(base, MMCIF_CE_ARG, arg); + sh_mmcif_writel(base, MMCIF_CE_CMD_SET, cmd); +} + +static inline int sh_mmcif_boot_cmd_poll(void __iomem *base, unsigned long mask) +{ + unsigned long tmp; + int cnt; + + for (cnt = 0; cnt < 1000000; cnt++) { + tmp = sh_mmcif_readl(base, MMCIF_CE_INT); + if (tmp & mask) { + sh_mmcif_writel(base, MMCIF_CE_INT, tmp & ~mask); + return 0; + } + } + + return -1; +} + +static inline int sh_mmcif_boot_cmd(void __iomem *base, + unsigned long cmd, unsigned long arg) +{ + sh_mmcif_boot_cmd_send(base, cmd, arg); + return sh_mmcif_boot_cmd_poll(base, 0x00010000); +} + +static inline int sh_mmcif_boot_do_read_single(void __iomem *base, + unsigned int block_nr, + unsigned long *buf) +{ + int k; + + /* CMD13 - Status */ + sh_mmcif_boot_cmd(base, 0x0d400000, 0x00010000); + + if (sh_mmcif_readl(base, MMCIF_CE_RESP0) != 0x0900) + return -1; + + /* CMD17 - Read */ + sh_mmcif_boot_cmd(base, 0x11480000, block_nr * SH_MMCIF_BBS); + if (sh_mmcif_boot_cmd_poll(base, 0x00100000) < 0) + return -1; + + for (k = 0; k < (SH_MMCIF_BBS / 4); k++) + buf[k] = sh_mmcif_readl(base, MMCIF_CE_DATA); + + return 0; +} + +static inline int sh_mmcif_boot_do_read(void __iomem *base, + unsigned long first_block, + unsigned long nr_blocks, + void *buf) +{ + unsigned long k; + int ret = 0; + + /* In data transfer mode: Set clock to Bus clock/4 (about 20Mhz) */ + sh_mmcif_writel(base, MMCIF_CE_CLK_CTRL, + CLK_ENABLE | CLKDIV_4 | SRSPTO_256 | + SRBSYTO_29 | SRWDTO_29 | SCCSTO_29); + + /* CMD9 - Get CSD */ + sh_mmcif_boot_cmd(base, 0x09806000, 0x00010000); + + /* CMD7 - Select the card */ + sh_mmcif_boot_cmd(base, 0x07400000, 0x00010000); + + /* CMD16 - Set the block size */ + sh_mmcif_boot_cmd(base, 0x10400000, SH_MMCIF_BBS); + + for (k = 0; !ret && k < nr_blocks; k++) + ret = sh_mmcif_boot_do_read_single(base, first_block + k, + buf + (k * SH_MMCIF_BBS)); + + return ret; +} + +static inline void sh_mmcif_boot_init(void __iomem *base) +{ + /* reset */ + sh_mmcif_writel(base, MMCIF_CE_VERSION, SOFT_RST_ON); + sh_mmcif_writel(base, MMCIF_CE_VERSION, SOFT_RST_OFF); + + /* byte swap */ + sh_mmcif_writel(base, MMCIF_CE_BUF_ACC, BUF_ACC_ATYP); + + /* Set block size in MMCIF hardware */ + sh_mmcif_writel(base, MMCIF_CE_BLOCK_SET, SH_MMCIF_BBS); + + /* Enable the clock, set it to Bus clock/256 (about 325Khz). */ + sh_mmcif_writel(base, MMCIF_CE_CLK_CTRL, + CLK_ENABLE | CLKDIV_256 | SRSPTO_256 | + SRBSYTO_29 | SRWDTO_29 | SCCSTO_29); + + /* CMD0 */ + sh_mmcif_boot_cmd(base, 0x00000040, 0); + + /* CMD1 - Get OCR */ + do { + sh_mmcif_boot_cmd(base, 0x01405040, 0x40300000); /* CMD1 */ + } while ((sh_mmcif_readl(base, MMCIF_CE_RESP0) & 0x80000000) + != 0x80000000); + + /* CMD2 - Get CID */ + sh_mmcif_boot_cmd(base, 0x02806040, 0); + + /* CMD3 - Set card relative address */ + sh_mmcif_boot_cmd(base, 0x03400040, 0x00010000); +} + +#endif /* LINUX_MMC_SH_MMCIF_H */ diff --git a/include/linux/mmc/sh_mobile_sdhi.h b/include/linux/mmc/sh_mobile_sdhi.h new file mode 100644 index 000000000000..95d6f0314a7d --- /dev/null +++ b/include/linux/mmc/sh_mobile_sdhi.h @@ -0,0 +1,10 @@ +#ifndef LINUX_MMC_SH_MOBILE_SDHI_H +#define LINUX_MMC_SH_MOBILE_SDHI_H + +#include <linux/types.h> + +#define SH_MOBILE_SDHI_IRQ_CARD_DETECT "card_detect" +#define SH_MOBILE_SDHI_IRQ_SDCARD "sdcard" +#define SH_MOBILE_SDHI_IRQ_SDIO "sdio" + +#endif /* LINUX_MMC_SH_MOBILE_SDHI_H */ diff --git a/include/linux/mmc/slot-gpio.h b/include/linux/mmc/slot-gpio.h new file mode 100644 index 000000000000..3945a8c9d3cb --- /dev/null +++ b/include/linux/mmc/slot-gpio.h @@ -0,0 +1,33 @@ +/* + * Generic GPIO card-detect helper header + * + * Copyright (C) 2011, Guennadi Liakhovetski <g.liakhovetski@gmx.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef MMC_SLOT_GPIO_H +#define MMC_SLOT_GPIO_H + +struct mmc_host; + +int mmc_gpio_get_ro(struct mmc_host *host); +int mmc_gpio_request_ro(struct mmc_host *host, unsigned int gpio); + +int mmc_gpio_get_cd(struct mmc_host *host); +int mmc_gpio_request_cd(struct mmc_host *host, unsigned int gpio, + unsigned int debounce); + +int mmc_gpiod_request_cd(struct mmc_host *host, const char *con_id, + unsigned int idx, bool override_active_level, + unsigned int debounce, bool *gpio_invert); +int mmc_gpiod_request_ro(struct mmc_host *host, const char *con_id, + unsigned int idx, bool override_active_level, + unsigned int debounce, bool *gpio_invert); +void mmc_gpio_set_cd_isr(struct mmc_host *host, + irqreturn_t (*isr)(int irq, void *dev_id)); +void mmc_gpiod_request_cd_irq(struct mmc_host *host); + +#endif diff --git a/include/linux/mmc/tmio.h b/include/linux/mmc/tmio.h new file mode 100644 index 000000000000..84d9053b5dca --- /dev/null +++ b/include/linux/mmc/tmio.h @@ -0,0 +1,66 @@ +/* + * include/linux/mmc/tmio.h + * + * Copyright (C) 2007 Ian Molton + * Copyright (C) 2004 Ian Molton + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Driver for the MMC / SD / SDIO cell found in: + * + * TC6393XB TC6391XB TC6387XB T7L66XB ASIC3 + */ +#ifndef LINUX_MMC_TMIO_H +#define LINUX_MMC_TMIO_H + +#define CTL_SD_CMD 0x00 +#define CTL_ARG_REG 0x04 +#define CTL_STOP_INTERNAL_ACTION 0x08 +#define CTL_XFER_BLK_COUNT 0xa +#define CTL_RESPONSE 0x0c +#define CTL_STATUS 0x1c +#define CTL_STATUS2 0x1e +#define CTL_IRQ_MASK 0x20 +#define CTL_SD_CARD_CLK_CTL 0x24 +#define CTL_SD_XFER_LEN 0x26 +#define CTL_SD_MEM_CARD_OPT 0x28 +#define CTL_SD_ERROR_DETAIL_STATUS 0x2c +#define CTL_SD_DATA_PORT 0x30 +#define CTL_TRANSACTION_CTL 0x34 +#define CTL_SDIO_STATUS 0x36 +#define CTL_SDIO_IRQ_MASK 0x38 +#define CTL_DMA_ENABLE 0xd8 +#define CTL_RESET_SD 0xe0 +#define CTL_VERSION 0xe2 +#define CTL_SDIO_REGS 0x100 +#define CTL_CLK_AND_WAIT_CTL 0x138 +#define CTL_RESET_SDIO 0x1e0 + +/* Definitions for values the CTRL_STATUS register can take. */ +#define TMIO_STAT_CMDRESPEND 0x00000001 +#define TMIO_STAT_DATAEND 0x00000004 +#define TMIO_STAT_CARD_REMOVE 0x00000008 +#define TMIO_STAT_CARD_INSERT 0x00000010 +#define TMIO_STAT_SIGSTATE 0x00000020 +#define TMIO_STAT_WRPROTECT 0x00000080 +#define TMIO_STAT_CARD_REMOVE_A 0x00000100 +#define TMIO_STAT_CARD_INSERT_A 0x00000200 +#define TMIO_STAT_SIGSTATE_A 0x00000400 +#define TMIO_STAT_CMD_IDX_ERR 0x00010000 +#define TMIO_STAT_CRCFAIL 0x00020000 +#define TMIO_STAT_STOPBIT_ERR 0x00040000 +#define TMIO_STAT_DATATIMEOUT 0x00080000 +#define TMIO_STAT_RXOVERFLOW 0x00100000 +#define TMIO_STAT_TXUNDERRUN 0x00200000 +#define TMIO_STAT_CMDTIMEOUT 0x00400000 +#define TMIO_STAT_RXRDY 0x01000000 +#define TMIO_STAT_TXRQ 0x02000000 +#define TMIO_STAT_ILL_FUNC 0x20000000 +#define TMIO_STAT_CMD_BUSY 0x40000000 +#define TMIO_STAT_ILL_ACCESS 0x80000000 + +#define TMIO_BBS 512 /* Boot block size */ + +#endif /* LINUX_MMC_TMIO_H */ |