diff options
Diffstat (limited to 'circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit')
4 files changed, 245 insertions, 0 deletions
diff --git a/circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit/boards/raspberrypi_zero_w/board.h b/circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit/boards/raspberrypi_zero_w/board.h new file mode 100644 index 0000000..1d3565d --- /dev/null +++ b/circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit/boards/raspberrypi_zero_w/board.h @@ -0,0 +1,38 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2020, Ha Thach (tinyusb.org) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * This file is part of the TinyUSB stack. + */ + +#ifndef BOARD_H_ +#define BOARD_H_ + +#ifdef __cplusplus + extern "C" { +#endif + +#ifdef __cplusplus + } +#endif + +#endif /* BOARD_H_ */ diff --git a/circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit/boards/raspberrypi_zero_w/board.mk b/circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit/boards/raspberrypi_zero_w/board.mk new file mode 100644 index 0000000..52e9e45 --- /dev/null +++ b/circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit/boards/raspberrypi_zero_w/board.mk @@ -0,0 +1,5 @@ +CFLAGS += -mcpu=arm1176jzf-s \ + -DBCM_VERSION=2835 \ + -DCFG_TUSB_MCU=OPT_MCU_BCM2835 + +SUFFIX = diff --git a/circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit/family.c b/circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit/family.c new file mode 100644 index 0000000..f7a11fb --- /dev/null +++ b/circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit/family.c @@ -0,0 +1,156 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 Ha Thach (tinyusb.org) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * This file is part of the TinyUSB stack. + */ + +#include "bsp/board.h" +#include "board.h" + +#include "broadcom/cpu.h" +#include "broadcom/gpio.h" +#include "broadcom/interrupts.h" +#include "broadcom/mmu.h" +#include "broadcom/caches.h" +#include "broadcom/vcmailbox.h" + +// LED +#define LED_PIN 18 +#define LED_STATE_ON 1 + +// UART TX +#define UART_TX_PIN 14 + +//--------------------------------------------------------------------+ +// Forward USB interrupt events to TinyUSB IRQ Handler +//--------------------------------------------------------------------+ +void USB_IRQHandler(void) +{ + tud_int_handler(0); +} + +//--------------------------------------------------------------------+ +// MACRO TYPEDEF CONSTANT ENUM +//--------------------------------------------------------------------+ + +//--------------------------------------------------------------------+ +// Board porting API +//--------------------------------------------------------------------+ +void board_init(void) +{ + setup_mmu_flat_map(); + init_caches(); + + // LED + gpio_set_function(LED_PIN, GPIO_FUNCTION_OUTPUT); + gpio_set_pull(LED_PIN, BP_PULL_NONE); + board_led_write(true); + + // Uart + COMPLETE_MEMORY_READS; + AUX->ENABLES_b.UART_1 = true; + + UART1->IER = 0; + UART1->CNTL = 0; + UART1->LCR_b.DATA_SIZE = UART1_LCR_DATA_SIZE_MODE_8BIT; + UART1->MCR = 0; + UART1->IER = 0; + + uint32_t source_clock = vcmailbox_get_clock_rate_measured(VCMAILBOX_CLOCK_CORE); + UART1->BAUD = ((source_clock / (115200 * 8)) - 1); + UART1->CNTL |= UART1_CNTL_TX_ENABLE_Msk; + COMPLETE_MEMORY_READS; + + gpio_set_function(UART_TX_PIN, GPIO_FUNCTION_ALT5); + + // Turn on USB peripheral. + vcmailbox_set_power_state(VCMAILBOX_DEVICE_USB_HCD, true); + + // Timer 1/1024 second tick + SYSTMR->CS_b.M1 = 1; + SYSTMR->C1 = SYSTMR->CLO + 977; + BP_EnableIRQ(TIMER_1_IRQn); + + BP_SetPriority(USB_IRQn, 0x00); + BP_ClearPendingIRQ(USB_IRQn); + BP_EnableIRQ(USB_IRQn); + BP_EnableIRQs(); +} + +void board_led_write(bool state) +{ + gpio_set_value(LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON)); +} + +uint32_t board_button_read(void) +{ + return 0; +} + +int board_uart_read(uint8_t* buf, int len) +{ + (void) buf; (void) len; + return 0; +} + +int board_uart_write(void const * buf, int len) +{ + for (int i = 0; i < len; i++) { + const char* cbuf = buf; + while (!UART1->STAT_b.TX_READY) {} + if (cbuf[i] == '\n') { + UART1->IO = '\r'; + while (!UART1->STAT_b.TX_READY) {} + } + UART1->IO = cbuf[i]; + } + return len; +} + +#if CFG_TUSB_OS == OPT_OS_NONE +volatile uint32_t system_ticks = 0; + +void TIMER_1_IRQHandler(void) +{ + system_ticks++; + SYSTMR->C1 += 977; + SYSTMR->CS_b.M1 = 1; +} + +uint32_t board_millis(void) +{ + return system_ticks; +} +#endif + +void HardFault_Handler (void) +{ + // asm("bkpt"); +} + +// Required by __libc_init_array in startup code if we are compiling using +// -nostdlib/-nostartfiles. +void _init(void) +{ + +} diff --git a/circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit/family.mk b/circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit/family.mk new file mode 100644 index 0000000..98744c5 --- /dev/null +++ b/circuitpython/lib/tinyusb/hw/bsp/broadcom_32bit/family.mk @@ -0,0 +1,46 @@ +MCU_DIR = hw/mcu/broadcom +DEPS_SUBMODULES += $(MCU_DIR) + +include $(TOP)/$(BOARD_PATH)/board.mk + +CFLAGS += \ + -Wall \ + -O0 \ + -ffreestanding \ + -nostdlib \ + -nostartfiles \ + -mgeneral-regs-only \ + -fno-exceptions \ + -std=c17 + +CROSS_COMPILE = arm-none-eabi- + +# mcu driver cause following warnings +CFLAGS += -Wno-error=cast-qual + +SRC_C += \ + src/portable/synopsys/dwc2/dcd_dwc2.c \ + $(MCU_DIR)/broadcom/gen/interrupt_handlers.c \ + $(MCU_DIR)/broadcom/gpio.c \ + $(MCU_DIR)/broadcom/interrupts.c \ + $(MCU_DIR)/broadcom/mmu.c \ + $(MCU_DIR)/broadcom/caches.c \ + $(MCU_DIR)/broadcom/vcmailbox.c + +SKIP_NANOLIB = 1 + +LD_FILE = $(MCU_DIR)/broadcom/link$(SUFFIX).ld + +INC += \ + $(TOP)/$(BOARD_PATH) \ + $(TOP)/$(MCU_DIR) + +SRC_S += $(MCU_DIR)/broadcom/boot$(SUFFIX).S + +$(BUILD)/kernel$(SUFFIX).img: $(BUILD)/$(PROJECT).elf + $(OBJCOPY) -O binary $^ $@ + +# Copy to kernel to netboot drive or SD card +# Change destinaation to fit your need +flash: $(BUILD)/kernel$(SUFFIX).img + @$(CP) $< /home/$(USER)/Documents/code/pi_tinyusb/boot_cpy |