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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-08 11:31:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-08 11:31:16 -0700
commit3f17ea6dea8ba5668873afa54628a91aaa3fb1c0 (patch)
treeafbeb2accd4c2199ddd705ae943995b143a0af02 /drivers/usb/phy/phy-mv-u3d-usb.c
parent1860e379875dfe7271c649058aeddffe5afd9d0d (diff)
parent1a5700bc2d10cd379a795fd2bb377a190af5acd4 (diff)
Merge branch 'next' (accumulated 3.16 merge window patches) into master
Now that 3.15 is released, this merges the 'next' branch into 'master', bringing us to the normal situation where my 'master' branch is the merge window. * accumulated work in next: (6809 commits) ufs: sb mutex merge + mutex_destroy powerpc: update comments for generic idle conversion cris: update comments for generic idle conversion idle: remove cpu_idle() forward declarations nbd: zero from and len fields in NBD_CMD_DISCONNECT. mm: convert some level-less printks to pr_* MAINTAINERS: adi-buildroot-devel is moderated MAINTAINERS: add linux-api for review of API/ABI changes mm/kmemleak-test.c: use pr_fmt for logging fs/dlm/debug_fs.c: replace seq_printf by seq_puts fs/dlm/lockspace.c: convert simple_str to kstr fs/dlm/config.c: convert simple_str to kstr mm: mark remap_file_pages() syscall as deprecated mm: memcontrol: remove unnecessary memcg argument from soft limit functions mm: memcontrol: clean up memcg zoneinfo lookup mm/memblock.c: call kmemleak directly from memblock_(alloc|free) mm/mempool.c: update the kmemleak stack trace for mempool allocations lib/radix-tree.c: update the kmemleak stack trace for radix tree allocations mm: introduce kmemleak_update_trace() mm/kmemleak.c: use %u to print ->checksum ...
Diffstat (limited to 'drivers/usb/phy/phy-mv-u3d-usb.c')
-rw-r--r--drivers/usb/phy/phy-mv-u3d-usb.c338
1 files changed, 0 insertions, 338 deletions
diff --git a/drivers/usb/phy/phy-mv-u3d-usb.c b/drivers/usb/phy/phy-mv-u3d-usb.c
deleted file mode 100644
index d317903022bf..000000000000
--- a/drivers/usb/phy/phy-mv-u3d-usb.c
+++ /dev/null
@@ -1,338 +0,0 @@
-/*
- * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/platform_device.h>
-#include <linux/clk.h>
-#include <linux/delay.h>
-#include <linux/err.h>
-#include <linux/io.h>
-#include <linux/usb/otg.h>
-#include <linux/platform_data/mv_usb.h>
-
-#include "phy-mv-u3d-usb.h"
-
-/*
- * struct mv_u3d_phy - transceiver driver state
- * @phy: transceiver structure
- * @dev: The parent device supplied to the probe function
- * @clk: usb phy clock
- * @base: usb phy register memory base
- */
-struct mv_u3d_phy {
- struct usb_phy phy;
- struct mv_usb_platform_data *plat;
- struct device *dev;
- struct clk *clk;
- void __iomem *base;
-};
-
-static u32 mv_u3d_phy_read(void __iomem *base, u32 reg)
-{
- void __iomem *addr, *data;
-
- addr = base;
- data = base + 0x4;
-
- writel_relaxed(reg, addr);
- return readl_relaxed(data);
-}
-
-static void mv_u3d_phy_set(void __iomem *base, u32 reg, u32 value)
-{
- void __iomem *addr, *data;
- u32 tmp;
-
- addr = base;
- data = base + 0x4;
-
- writel_relaxed(reg, addr);
- tmp = readl_relaxed(data);
- tmp |= value;
- writel_relaxed(tmp, data);
-}
-
-static void mv_u3d_phy_clear(void __iomem *base, u32 reg, u32 value)
-{
- void __iomem *addr, *data;
- u32 tmp;
-
- addr = base;
- data = base + 0x4;
-
- writel_relaxed(reg, addr);
- tmp = readl_relaxed(data);
- tmp &= ~value;
- writel_relaxed(tmp, data);
-}
-
-static void mv_u3d_phy_write(void __iomem *base, u32 reg, u32 value)
-{
- void __iomem *addr, *data;
-
- addr = base;
- data = base + 0x4;
-
- writel_relaxed(reg, addr);
- writel_relaxed(value, data);
-}
-
-static void mv_u3d_phy_shutdown(struct usb_phy *phy)
-{
- struct mv_u3d_phy *mv_u3d_phy;
- void __iomem *base;
- u32 val;
-
- mv_u3d_phy = container_of(phy, struct mv_u3d_phy, phy);
- base = mv_u3d_phy->base;
-
- /* Power down Reference Analog current, bit 15
- * Power down PLL, bit 14
- * Power down Receiver, bit 13
- * Power down Transmitter, bit 12
- * of USB3_POWER_PLL_CONTROL register
- */
- val = mv_u3d_phy_read(base, USB3_POWER_PLL_CONTROL);
- val &= ~(USB3_POWER_PLL_CONTROL_PU);
- mv_u3d_phy_write(base, USB3_POWER_PLL_CONTROL, val);
-
- if (mv_u3d_phy->clk)
- clk_disable(mv_u3d_phy->clk);
-}
-
-static int mv_u3d_phy_init(struct usb_phy *phy)
-{
- struct mv_u3d_phy *mv_u3d_phy;
- void __iomem *base;
- u32 val, count;
-
- /* enable usb3 phy */
- mv_u3d_phy = container_of(phy, struct mv_u3d_phy, phy);
-
- if (mv_u3d_phy->clk)
- clk_enable(mv_u3d_phy->clk);
-
- base = mv_u3d_phy->base;
-
- val = mv_u3d_phy_read(base, USB3_POWER_PLL_CONTROL);
- val &= ~(USB3_POWER_PLL_CONTROL_PU_MASK);
- val |= 0xF << USB3_POWER_PLL_CONTROL_PU_SHIFT;
- mv_u3d_phy_write(base, USB3_POWER_PLL_CONTROL, val);
- udelay(100);
-
- mv_u3d_phy_write(base, USB3_RESET_CONTROL,
- USB3_RESET_CONTROL_RESET_PIPE);
- udelay(100);
-
- mv_u3d_phy_write(base, USB3_RESET_CONTROL,
- USB3_RESET_CONTROL_RESET_PIPE
- | USB3_RESET_CONTROL_RESET_PHY);
- udelay(100);
-
- val = mv_u3d_phy_read(base, USB3_POWER_PLL_CONTROL);
- val &= ~(USB3_POWER_PLL_CONTROL_REF_FREF_SEL_MASK
- | USB3_POWER_PLL_CONTROL_PHY_MODE_MASK);
- val |= (USB3_PLL_25MHZ << USB3_POWER_PLL_CONTROL_REF_FREF_SEL_SHIFT)
- | (0x5 << USB3_POWER_PLL_CONTROL_PHY_MODE_SHIFT);
- mv_u3d_phy_write(base, USB3_POWER_PLL_CONTROL, val);
- udelay(100);
-
- mv_u3d_phy_clear(base, USB3_KVCO_CALI_CONTROL,
- USB3_KVCO_CALI_CONTROL_USE_MAX_PLL_RATE_MASK);
- udelay(100);
-
- val = mv_u3d_phy_read(base, USB3_SQUELCH_FFE);
- val &= ~(USB3_SQUELCH_FFE_FFE_CAP_SEL_MASK
- | USB3_SQUELCH_FFE_FFE_RES_SEL_MASK
- | USB3_SQUELCH_FFE_SQ_THRESH_IN_MASK);
- val |= ((0xD << USB3_SQUELCH_FFE_FFE_CAP_SEL_SHIFT)
- | (0x7 << USB3_SQUELCH_FFE_FFE_RES_SEL_SHIFT)
- | (0x8 << USB3_SQUELCH_FFE_SQ_THRESH_IN_SHIFT));
- mv_u3d_phy_write(base, USB3_SQUELCH_FFE, val);
- udelay(100);
-
- val = mv_u3d_phy_read(base, USB3_GEN1_SET0);
- val &= ~USB3_GEN1_SET0_G1_TX_SLEW_CTRL_EN_MASK;
- val |= 1 << USB3_GEN1_SET0_G1_TX_EMPH_EN_SHIFT;
- mv_u3d_phy_write(base, USB3_GEN1_SET0, val);
- udelay(100);
-
- val = mv_u3d_phy_read(base, USB3_GEN2_SET0);
- val &= ~(USB3_GEN2_SET0_G2_TX_AMP_MASK
- | USB3_GEN2_SET0_G2_TX_EMPH_AMP_MASK
- | USB3_GEN2_SET0_G2_TX_SLEW_CTRL_EN_MASK);
- val |= ((0x14 << USB3_GEN2_SET0_G2_TX_AMP_SHIFT)
- | (1 << USB3_GEN2_SET0_G2_TX_AMP_ADJ_SHIFT)
- | (0xA << USB3_GEN2_SET0_G2_TX_EMPH_AMP_SHIFT)
- | (1 << USB3_GEN2_SET0_G2_TX_EMPH_EN_SHIFT));
- mv_u3d_phy_write(base, USB3_GEN2_SET0, val);
- udelay(100);
-
- mv_u3d_phy_read(base, USB3_TX_EMPPH);
- val &= ~(USB3_TX_EMPPH_AMP_MASK
- | USB3_TX_EMPPH_EN_MASK
- | USB3_TX_EMPPH_AMP_FORCE_MASK
- | USB3_TX_EMPPH_PAR1_MASK
- | USB3_TX_EMPPH_PAR2_MASK);
- val |= ((0xB << USB3_TX_EMPPH_AMP_SHIFT)
- | (1 << USB3_TX_EMPPH_EN_SHIFT)
- | (1 << USB3_TX_EMPPH_AMP_FORCE_SHIFT)
- | (0x1C << USB3_TX_EMPPH_PAR1_SHIFT)
- | (1 << USB3_TX_EMPPH_PAR2_SHIFT));
-
- mv_u3d_phy_write(base, USB3_TX_EMPPH, val);
- udelay(100);
-
- val = mv_u3d_phy_read(base, USB3_GEN2_SET1);
- val &= ~(USB3_GEN2_SET1_G2_RX_SELMUPI_MASK
- | USB3_GEN2_SET1_G2_RX_SELMUPF_MASK
- | USB3_GEN2_SET1_G2_RX_SELMUFI_MASK
- | USB3_GEN2_SET1_G2_RX_SELMUFF_MASK);
- val |= ((1 << USB3_GEN2_SET1_G2_RX_SELMUPI_SHIFT)
- | (1 << USB3_GEN2_SET1_G2_RX_SELMUPF_SHIFT)
- | (1 << USB3_GEN2_SET1_G2_RX_SELMUFI_SHIFT)
- | (1 << USB3_GEN2_SET1_G2_RX_SELMUFF_SHIFT));
- mv_u3d_phy_write(base, USB3_GEN2_SET1, val);
- udelay(100);
-
- val = mv_u3d_phy_read(base, USB3_DIGITAL_LOOPBACK_EN);
- val &= ~USB3_DIGITAL_LOOPBACK_EN_SEL_BITS_MASK;
- val |= 1 << USB3_DIGITAL_LOOPBACK_EN_SEL_BITS_SHIFT;
- mv_u3d_phy_write(base, USB3_DIGITAL_LOOPBACK_EN, val);
- udelay(100);
-
- val = mv_u3d_phy_read(base, USB3_IMPEDANCE_TX_SSC);
- val &= ~USB3_IMPEDANCE_TX_SSC_SSC_AMP_MASK;
- val |= 0xC << USB3_IMPEDANCE_TX_SSC_SSC_AMP_SHIFT;
- mv_u3d_phy_write(base, USB3_IMPEDANCE_TX_SSC, val);
- udelay(100);
-
- val = mv_u3d_phy_read(base, USB3_IMPEDANCE_CALI_CTRL);
- val &= ~USB3_IMPEDANCE_CALI_CTRL_IMP_CAL_THR_MASK;
- val |= 0x4 << USB3_IMPEDANCE_CALI_CTRL_IMP_CAL_THR_SHIFT;
- mv_u3d_phy_write(base, USB3_IMPEDANCE_CALI_CTRL, val);
- udelay(100);
-
- val = mv_u3d_phy_read(base, USB3_PHY_ISOLATION_MODE);
- val &= ~(USB3_PHY_ISOLATION_MODE_PHY_GEN_RX_MASK
- | USB3_PHY_ISOLATION_MODE_PHY_GEN_TX_MASK
- | USB3_PHY_ISOLATION_MODE_TX_DRV_IDLE_MASK);
- val |= ((1 << USB3_PHY_ISOLATION_MODE_PHY_GEN_RX_SHIFT)
- | (1 << USB3_PHY_ISOLATION_MODE_PHY_GEN_TX_SHIFT));
- mv_u3d_phy_write(base, USB3_PHY_ISOLATION_MODE, val);
- udelay(100);
-
- val = mv_u3d_phy_read(base, USB3_TXDETRX);
- val &= ~(USB3_TXDETRX_VTHSEL_MASK);
- val |= 0x1 << USB3_TXDETRX_VTHSEL_SHIFT;
- mv_u3d_phy_write(base, USB3_TXDETRX, val);
- udelay(100);
-
- dev_dbg(mv_u3d_phy->dev, "start calibration\n");
-
-calstart:
- /* Perform Manual Calibration */
- mv_u3d_phy_set(base, USB3_KVCO_CALI_CONTROL,
- 1 << USB3_KVCO_CALI_CONTROL_CAL_START_SHIFT);
-
- mdelay(1);
-
- count = 0;
- while (1) {
- val = mv_u3d_phy_read(base, USB3_KVCO_CALI_CONTROL);
- if (val & (1 << USB3_KVCO_CALI_CONTROL_CAL_DONE_SHIFT))
- break;
- else if (count > 50) {
- dev_dbg(mv_u3d_phy->dev, "calibration failure, retry...\n");
- goto calstart;
- }
- count++;
- mdelay(1);
- }
-
- /* active PIPE interface */
- mv_u3d_phy_write(base, USB3_PIPE_SM_CTRL,
- 1 << USB3_PIPE_SM_CTRL_PHY_INIT_DONE);
-
- return 0;
-}
-
-static int mv_u3d_phy_probe(struct platform_device *pdev)
-{
- struct mv_u3d_phy *mv_u3d_phy;
- struct mv_usb_platform_data *pdata;
- struct device *dev = &pdev->dev;
- struct resource *res;
- void __iomem *phy_base;
- int ret;
-
- pdata = dev_get_platdata(&pdev->dev);
- if (!pdata) {
- dev_err(&pdev->dev, "%s: no platform data defined\n", __func__);
- return -EINVAL;
- }
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- phy_base = devm_ioremap_resource(dev, res);
- if (IS_ERR(phy_base))
- return PTR_ERR(phy_base);
-
- mv_u3d_phy = devm_kzalloc(dev, sizeof(*mv_u3d_phy), GFP_KERNEL);
- if (!mv_u3d_phy)
- return -ENOMEM;
-
- mv_u3d_phy->dev = &pdev->dev;
- mv_u3d_phy->plat = pdata;
- mv_u3d_phy->base = phy_base;
- mv_u3d_phy->phy.dev = mv_u3d_phy->dev;
- mv_u3d_phy->phy.label = "mv-u3d-phy";
- mv_u3d_phy->phy.init = mv_u3d_phy_init;
- mv_u3d_phy->phy.shutdown = mv_u3d_phy_shutdown;
-
- ret = usb_add_phy(&mv_u3d_phy->phy, USB_PHY_TYPE_USB3);
- if (ret)
- goto err;
-
- if (!mv_u3d_phy->clk)
- mv_u3d_phy->clk = clk_get(mv_u3d_phy->dev, "u3dphy");
-
- platform_set_drvdata(pdev, mv_u3d_phy);
-
- dev_info(&pdev->dev, "Initialized Marvell USB 3.0 PHY\n");
-err:
- return ret;
-}
-
-static int mv_u3d_phy_remove(struct platform_device *pdev)
-{
- struct mv_u3d_phy *mv_u3d_phy = platform_get_drvdata(pdev);
-
- usb_remove_phy(&mv_u3d_phy->phy);
-
- if (mv_u3d_phy->clk) {
- clk_put(mv_u3d_phy->clk);
- mv_u3d_phy->clk = NULL;
- }
-
- return 0;
-}
-
-static struct platform_driver mv_u3d_phy_driver = {
- .probe = mv_u3d_phy_probe,
- .remove = mv_u3d_phy_remove,
- .driver = {
- .name = "mv-u3d-phy",
- .owner = THIS_MODULE,
- },
-};
-
-module_platform_driver(mv_u3d_phy_driver);
-MODULE_DESCRIPTION("Marvell USB 3.0 PHY controller");
-MODULE_AUTHOR("Yu Xu <yuxu@marvell.com>");
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:mv-u3d-phy");