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Initial Pi Zero support 

Both SD card and USB don't work. REPL works over UART.

Progress on #5631
This commit is contained in:
Scott Shawcroft 2021-12-30 18:29:59 -08:00
parent 8aafc734a4
commit 756b9f6dfa
No known key found for this signature in database
GPG Key ID: 0DFD512649C052DA
13 changed files with 213 additions and 48 deletions
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6
lib/sdmmc/sdmmc_io.c
View File

@ -420,7 +420,10 @@ static sdmmc_err_t cis_tuple_func_manfid(const void* p, uint8_t* data, FILE* fp)
int size = *(data++);
fprintf(fp, "TUPLE: %s, size: %d\n", tuple->name, size);
CIS_CHECK_SIZE(size, 4);
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-align"
fprintf(fp, " MANF: %04X, CARD: %04X\n", *(uint16_t*)(data), *(uint16_t*)(data+2));
#pragma GCC diagnostic pop
return SDMMC_OK;
}
@ -480,7 +483,10 @@ static sdmmc_err_t cis_tuple_func_cftable_entry(const void* p, uint8_t* data, FI
CIS_CHECK_SIZE(size, 2);
size-=2;
CIS_CHECK_UNSUPPORTED(mem_space==1); //other cases not handled yet
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-align"
int len = *(uint16_t*)data;
#pragma GCC diagnostic pop
fprintf(fp, " LEN: %04X\n", len);
data+=2;
}

4
main.c
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@ -813,8 +813,8 @@ int __attribute__((used)) main(void) {
// no SPI flash filesystem, and we might erase the existing one.
// Check whether CIRCUITPY is available. Don't check if it already hasn't been found.
if ((safe_mode != NO_CIRCUITPY) && !filesystem_init(safe_mode == NO_SAFE_MODE, false)) {
reset_into_safe_mode(NO_CIRCUITPY);
if (!filesystem_init(safe_mode == NO_SAFE_MODE, false)) {
safe_mode = NO_CIRCUITPY;
}
// displays init after filesystem, since they could share the flash SPI

42
ports/broadcom/Makefile
View File

@ -31,7 +31,20 @@ include $(TOP)/supervisor/supervisor.mk
# Include make rules and variables common across CircuitPython builds.
include $(TOP)/py/circuitpy_defns.mk
HAL_DIR=hal/$(MCU_SERIES)
ifeq ($(CHIP_VARIANT), "bcm2711")
CFLAGS += -mcpu=cortex-a72 -DBCM_VERSION=2711
CROSS_COMPILE = aarch64-none-elf-
SUFFIX = 8
else ifeq ($(CHIP_VARIANT), "bcm2837")
CFLAGS += -mcpu=cortex-a53 -DBCM_VERSION=2837
CROSS_COMPILE = aarch64-none-elf-
SUFFIX = 8
else ifeq ($(CHIP_VARIANT), "bcm2835")
CFLAGS += -mcpu=arm1176jzf-s -DBCM_VERSION=2835
CROSS_COMPILE = arm-none-eabi-
SUFFIX =
# TODO add 32-bit support for Cortex-A7 in 2836
endif
INC += -I. \
-I../.. \
@ -69,6 +82,7 @@ SRC_C += bindings/videocore/__init__.c \
peripherals/broadcom/mmu.c \
peripherals/broadcom/vcmailbox.c
SRC_S = peripherals/broadcom/boot$(SUFFIX).s
SRC_COMMON_HAL_EXPANDED = $(addprefix shared-bindings/, $(SRC_COMMON_HAL)) \
$(addprefix shared-bindings/, $(SRC_BINDINGS_ENUMS)) \
@ -82,7 +96,6 @@ SRC_SHARED_MODULE_EXPANDED = $(addprefix shared-bindings/, $(SRC_SHARED_MODULE))
# because a few modules have files both in common-hal/ and shared-modules/.
# Doing a $(sort ...) removes duplicates as part of sorting.
SRC_COMMON_HAL_SHARED_MODULE_EXPANDED = $(sort $(SRC_COMMON_HAL_EXPANDED) $(SRC_SHARED_MODULE_EXPANDED))
SRC_S = peripherals/broadcom/boot8.s
OBJ = $(PY_O) $(SUPERVISOR_O) $(addprefix $(BUILD)/, $(SRC_C:.c=.o))
OBJ += $(addprefix $(BUILD)/, $(SRC_COMMON_HAL_SHARED_MODULE_EXPANDED:.c=.o))
@ -96,15 +109,6 @@ OBJ += $(addprefix $(BUILD)/, $(SRC_MOD:.c=.o))
# BCM CLFAGS
CFLAGS += -ffreestanding -nostartfiles -DMICROPY_HW_MCU_NAME="\"$(CHIP_VARIANT)\""
ifeq ($(CHIP_VARIANT), "bcm2711")
CFLAGS += -mcpu=cortex-a72 -DBCM_VERSION=2711
CROSS_COMPILE = aarch64-none-elf-
else
CFLAGS += -mcpu=cortex-a53 -DBCM_VERSION=2837
CROSS_COMPILE = aarch64-none-elf-
# TODO add 32-bit support for Cortex-A7 and ARM1176
endif
OPTIMIZATION_FLAGS ?= -O3
CFLAGS += $(OPTIMIZATION_FLAGS)
@ -134,32 +138,32 @@ CFLAGS += $(INC) -Wall -Werror -std=gnu11 $(BASE_CFLAGS) $(CFLAGS_MOD) $(COPT) $
SRC_QSTR += $(SRC_C) $(SRC_SUPERVISOR) $(SRC_COMMON_HAL_EXPANDED) $(SRC_SHARED_MODULE_EXPANDED)
LDFLAGS += $(CFLAGS) -T peripherals/broadcom/link8.ld -Wl,--gc-sections -Wl,-Map=$@.map # -Wl,--cref
LDFLAGS += $(CFLAGS) -T peripherals/broadcom/link$(SUFFIX).ld -Wl,--gc-sections -Wl,-Map=$@.map # -Wl,--cref
# Use toolchain libm if we're not using our own.
ifndef INTERNAL_LIBM
LIBS += -lm
endif
all: $(BUILD)/firmware.kernel8.img $(BUILD)/firmware.disk.img.zip
all: $(BUILD)/firmware.kernel$(SUFFIX).img $(BUILD)/firmware.disk.img.zip
%.o: %.c
$(CC) $(CFLAGS) -c $< -o $@
$(BUILD)/kernel8.elf: $(OBJ)
$(BUILD)/kernel$(SUFFIX).elf: $(OBJ)
$(STEPECHO) "LINK $@"
$(Q)echo $(OBJ) > $(BUILD)/firmware.objs
$(Q)$(CC) -o $@ $(LDFLAGS) @$(BUILD)/firmware.objs -Wl,--start-group $(LIBS) -Wl,--end-group
$(BUILD)/kernel8.img: $(BUILD)/kernel8.elf
$(BUILD)/kernel$(SUFFIX).img: $(BUILD)/kernel$(SUFFIX).elf
$(STEPECHO) "Create $@"
$(OBJCOPY) -O binary $(BUILD)/kernel8.elf $@
$(OBJCOPY) -O binary $(BUILD)/kernel$(SUFFIX).elf $@
$(BUILD)/firmware.kernel8.img: $(BUILD)/kernel8.img
$(BUILD)/firmware.kernel$(SUFFIX).img: $(BUILD)/kernel$(SUFFIX).img
$(STEPECHO) "Create $@"
$(CP) $^ $@
$(BUILD)/firmware.disk.img.zip: $(BUILD)/kernel8.img
$(BUILD)/firmware.disk.img.zip: $(BUILD)/kernel$(SUFFIX).img
$(STEPECHO) "Create $@"
$(Q)dd if=/dev/zero of=$(BUILD)/circuitpython-disk.img bs=1 count=0 seek=256M
$(Q)parted -s $(BUILD)/circuitpython-disk.img mktable msdos
@ -167,7 +171,7 @@ $(BUILD)/firmware.disk.img.zip: $(BUILD)/kernel8.img
$(Q)mkfs.fat -F 32 -n BOOT --offset=2048 $(BUILD)/circuitpython-disk.img
$(Q)mcopy -i $(BUILD)/circuitpython-disk.img@@1M config.txt firmware/bootcode.bin firmware/fixup* firmware/start* firmware/*.dtb ::
$(Q)mcopy -i $(BUILD)/circuitpython-disk.img@@1M $(BUILD)/kernel8.img ::
$(Q)mcopy -i $(BUILD)/circuitpython-disk.img@@1M $(BUILD)/kernel$(SUFFIX).img ::
$(Q)zip $@ $(BUILD)/circuitpython-disk.img
$(Q)rm $(BUILD)/circuitpython-disk.img

56
ports/broadcom/boards/raspberrypi_zero_w/board.c Normal file
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@ -0,0 +1,56 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2021 Scott Shawcroft for Adafruit Industries
*
* 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.
*/
#include "supervisor/board.h"
#include "mpconfigboard.h"
#include "bindings/videocore/Framebuffer.h"
#include "shared-module/displayio/__init__.h"
#include "shared-bindings/framebufferio/FramebufferDisplay.h"
void board_init(void) {
videocore_framebuffer_obj_t *fb = &allocate_display_bus()->videocore;
fb->base.type = &videocore_framebuffer_type;
common_hal_videocore_framebuffer_construct(fb, 640, 480);
framebufferio_framebufferdisplay_obj_t *display = &displays[0].framebuffer_display;
display->base.type = &framebufferio_framebufferdisplay_type;
common_hal_framebufferio_framebufferdisplay_construct(
display,
MP_OBJ_FROM_PTR(fb),
0,
true);
}
bool board_requests_safe_mode(void) {
return false;
}
void reset_board(void) {
}
void board_deinit(void) {
}

6
ports/broadcom/boards/raspberrypi_zero_w/mpconfigboard.h Normal file
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@ -0,0 +1,6 @@
#define MICROPY_HW_BOARD_NAME "Raspberry Pi Zero"
#define DEFAULT_I2C_BUS_SCL (&pin_GPIO3)
#define DEFAULT_I2C_BUS_SDA (&pin_GPIO2)
#define MICROPY_HW_LED_STATUS (&pin_GPIO47)

6
ports/broadcom/boards/raspberrypi_zero_w/mpconfigboard.mk Normal file
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@ -0,0 +1,6 @@
USB_VID = 0x2E8A
USB_PID = 0xf015
USB_PRODUCT = "Raspberry Pi Zero"
USB_MANUFACTURER = "Raspberry Pi"
CHIP_VARIANT = "bcm2835"

62
ports/broadcom/boards/raspberrypi_zero_w/pins.c Normal file
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@ -0,0 +1,62 @@
#include "shared-bindings/board/__init__.h"
#include "shared-module/displayio/__init__.h"
STATIC const mp_rom_map_elem_t board_global_dict_table[] = {
CIRCUITPYTHON_BOARD_DICT_STANDARD_ITEMS
// These match the names used in Blinka
{ MP_ROM_QSTR(MP_QSTR_D0), MP_ROM_PTR(&pin_GPIO0) },
{ MP_ROM_QSTR(MP_QSTR_D1), MP_ROM_PTR(&pin_GPIO1) },
{ MP_ROM_QSTR(MP_QSTR_D2), MP_ROM_PTR(&pin_GPIO2) },
{ MP_ROM_QSTR(MP_QSTR_SDA), MP_ROM_PTR(&pin_GPIO2) },
{ MP_ROM_QSTR(MP_QSTR_D3), MP_ROM_PTR(&pin_GPIO3) },
{ MP_ROM_QSTR(MP_QSTR_SCL), MP_ROM_PTR(&pin_GPIO3) },
{ MP_ROM_QSTR(MP_QSTR_D4), MP_ROM_PTR(&pin_GPIO4) },
{ MP_ROM_QSTR(MP_QSTR_D5), MP_ROM_PTR(&pin_GPIO5) },
{ MP_ROM_QSTR(MP_QSTR_D6), MP_ROM_PTR(&pin_GPIO6) },
{ MP_ROM_QSTR(MP_QSTR_D7), MP_ROM_PTR(&pin_GPIO7) },
{ MP_ROM_QSTR(MP_QSTR_CE1), MP_ROM_PTR(&pin_GPIO7) },
{ MP_ROM_QSTR(MP_QSTR_D8), MP_ROM_PTR(&pin_GPIO8) },
{ MP_ROM_QSTR(MP_QSTR_CE0), MP_ROM_PTR(&pin_GPIO8) },
{ MP_ROM_QSTR(MP_QSTR_D9), MP_ROM_PTR(&pin_GPIO9) },
{ MP_ROM_QSTR(MP_QSTR_MISO), MP_ROM_PTR(&pin_GPIO9) },
{ MP_ROM_QSTR(MP_QSTR_D10), MP_ROM_PTR(&pin_GPIO10) },
{ MP_ROM_QSTR(MP_QSTR_MOSI), MP_ROM_PTR(&pin_GPIO10) },
{ MP_ROM_QSTR(MP_QSTR_D11), MP_ROM_PTR(&pin_GPIO11) },
{ MP_ROM_QSTR(MP_QSTR_SCLK), MP_ROM_PTR(&pin_GPIO11) },
{ MP_ROM_QSTR(MP_QSTR_SCK), MP_ROM_PTR(&pin_GPIO11) },
{ MP_ROM_QSTR(MP_QSTR_D12), MP_ROM_PTR(&pin_GPIO12) },
{ MP_ROM_QSTR(MP_QSTR_D13), MP_ROM_PTR(&pin_GPIO13) },
{ MP_ROM_QSTR(MP_QSTR_D14), MP_ROM_PTR(&pin_GPIO14) },
{ MP_ROM_QSTR(MP_QSTR_TXD), MP_ROM_PTR(&pin_GPIO14) },
{ MP_ROM_QSTR(MP_QSTR_D15), MP_ROM_PTR(&pin_GPIO15) },
{ MP_ROM_QSTR(MP_QSTR_RXD), MP_ROM_PTR(&pin_GPIO15) },
{ MP_ROM_QSTR(MP_QSTR_TX), MP_ROM_PTR(&pin_GPIO14) },
{ MP_ROM_QSTR(MP_QSTR_RX), MP_ROM_PTR(&pin_GPIO15) },
{ MP_ROM_QSTR(MP_QSTR_D16), MP_ROM_PTR(&pin_GPIO16) },
{ MP_ROM_QSTR(MP_QSTR_D17), MP_ROM_PTR(&pin_GPIO17) },
{ MP_ROM_QSTR(MP_QSTR_D18), MP_ROM_PTR(&pin_GPIO18) },
{ MP_ROM_QSTR(MP_QSTR_D19), MP_ROM_PTR(&pin_GPIO19) },
{ MP_ROM_QSTR(MP_QSTR_MISO_1), MP_ROM_PTR(&pin_GPIO19) },
{ MP_ROM_QSTR(MP_QSTR_D20), MP_ROM_PTR(&pin_GPIO20) },
{ MP_ROM_QSTR(MP_QSTR_MOSI_1), MP_ROM_PTR(&pin_GPIO20) },
{ MP_ROM_QSTR(MP_QSTR_D21), MP_ROM_PTR(&pin_GPIO21) },
{ MP_ROM_QSTR(MP_QSTR_SCLK_1), MP_ROM_PTR(&pin_GPIO21) },
{ MP_ROM_QSTR(MP_QSTR_SCK_1), MP_ROM_PTR(&pin_GPIO21) },
{ MP_ROM_QSTR(MP_QSTR_D22), MP_ROM_PTR(&pin_GPIO22) },
{ MP_ROM_QSTR(MP_QSTR_D23), MP_ROM_PTR(&pin_GPIO23) },
{ MP_ROM_QSTR(MP_QSTR_D24), MP_ROM_PTR(&pin_GPIO24) },
{ MP_ROM_QSTR(MP_QSTR_D25), MP_ROM_PTR(&pin_GPIO25) },
{ MP_ROM_QSTR(MP_QSTR_D26), MP_ROM_PTR(&pin_GPIO26) },
{ MP_ROM_QSTR(MP_QSTR_D27), MP_ROM_PTR(&pin_GPIO27) },
{ MP_ROM_QSTR(MP_QSTR_I2C), MP_ROM_PTR(&board_i2c_obj) },
{ MP_ROM_QSTR(MP_QSTR_DISPLAY), MP_ROM_PTR(&displays[0].display)},
};
MP_DEFINE_CONST_DICT(board_module_globals, board_global_dict_table);

4
ports/broadcom/common-hal/neopixel_write/__init__.c
View File

@ -48,9 +48,9 @@ void common_hal_neopixel_write(const digitalio_digitalinout_obj_t *digitalinout,
while (port_get_raw_ticks(NULL) < next_start_raw_ticks) {
}
BP_Function_Enum alt_function;
BP_Function_Enum alt_function = GPIO_FUNCTION_OUTPUT;
uint8_t index;
uint8_t channel;
uint8_t channel = 0;
bool found = false;
for (size_t i = 0; i < NUM_ALT_FUNC; i++) {
const pin_function_t *f = &digitalinout->pin->functions[i];

8
ports/broadcom/common-hal/videocore/Framebuffer.c
View File

@ -16,7 +16,13 @@ void common_hal_videocore_framebuffer_construct(videocore_framebuffer_obj_t *sel
// TODO: Make the FB twice as tall if double buffering.
uint32_t physical_height = height;
uint32_t pitch = 0;
self->framebuffer = vcmailbox_get_framebuffer(&virtual_width, &virtual_height, &physical_width, &physical_height, &pitch);
uint32_t bits_per_pixel = 0;
self->framebuffer = vcmailbox_get_framebuffer(&virtual_width,
&virtual_height,
&physical_width,
&physical_height,
&pitch,
&bits_per_pixel);
if (self->framebuffer == NULL) {
if (gc_alloc_possible()) {
mp_raise_ValueError(translate("no fb"));

4
ports/broadcom/mpconfigport.h
View File

@ -36,7 +36,11 @@
#define MICROPY_PY_SYS_PLATFORM "BROADCOM"
#define MICROPY_PY_BUILTINS_NOTIMPLEMENTED (1)
#define MICROPY_PY_FUNCTION_ATTRS (1)
#if BCM_VERSION == 2837 || BCM_VERSION == 2711
#define MICROPY_OBJ_REPR (MICROPY_OBJ_REPR_A)
#elif BCM_VERSION == 2835
#define MICROPY_OBJ_REPR (MICROPY_OBJ_REPR_C)
#endif
#define CIRCUITPY_DEFAULT_STACK_SIZE (0x10000)
#define CIRCUITPY_DISPLAY_AREA_BUFFER_SIZE (1920)
#define CIRCUITPY_PROCESSOR_COUNT (4)

20
ports/broadcom/mphalport.c
View File

@ -41,16 +41,16 @@ mp_uint_t cpu_get_regs_and_sp(mp_uint_t *regs) {
__asm__ ("mov %[out], x28" : [out] "=r" (regs[9]));
#else
__asm__ ("mov %[out], sp" : [out] "=r" (sp));
__asm__ ("mov %[out], x19" : [out] "=r" (regs[0]));
__asm__ ("mov %[out], x20" : [out] "=r" (regs[1]));
__asm__ ("mov %[out], x21" : [out] "=r" (regs[2]));
__asm__ ("mov %[out], x22" : [out] "=r" (regs[3]));
__asm__ ("mov %[out], x23" : [out] "=r" (regs[4]));
__asm__ ("mov %[out], x24" : [out] "=r" (regs[5]));
__asm__ ("mov %[out], x25" : [out] "=r" (regs[6]));
__asm__ ("mov %[out], x26" : [out] "=r" (regs[7]));
__asm__ ("mov %[out], x27" : [out] "=r" (regs[8]));
__asm__ ("mov %[out], x28" : [out] "=r" (regs[9]));
__asm__ ("mov %[out], r4" : [out] "=r" (regs[0]));
__asm__ ("mov %[out], r5" : [out] "=r" (regs[1]));
__asm__ ("mov %[out], r6" : [out] "=r" (regs[2]));
__asm__ ("mov %[out], r7" : [out] "=r" (regs[3]));
__asm__ ("mov %[out], r8" : [out] "=r" (regs[4]));
__asm__ ("mov %[out], r9" : [out] "=r" (regs[5]));
__asm__ ("mov %[out], r10" : [out] "=r" (regs[6]));
__asm__ ("mov %[out], r11" : [out] "=r" (regs[7]));
__asm__ ("mov %[out], r12" : [out] "=r" (regs[8]));
__asm__ ("mov %[out], r13" : [out] "=r" (regs[9]));
#endif
return sp;

2
ports/broadcom/peripherals

@ -1 +1 @@
Subproject commit 2c10889a4b2d78987bc4e0783db2e7584aa4d572
Subproject commit 4e1632ab1f15996a9bbe2aa74f92bf138dff691f

41
ports/broadcom/supervisor/port.c
View File

@ -116,42 +116,57 @@ void reset_to_bootloader(void) {
}
void reset_cpu(void) {
// Don't actually reset because we can't store the safe mode info.
// PM->WDOG = 1 << PM_WDOG_TIME_Pos | PM_WDOG_PASSWD_PASSWD << PM_WDOG_PASSWD_Pos;
// PM->RSTC = PM_RSTC_WRCFG_FULL_RESET << PM_RSTC_WRCFG_Pos | PM_RSTC_PASSWD_PASSWD << PM_RSTC_PASSWD_Pos;
while (true) {
}
}
bool port_has_fixed_stack(void) {
#ifdef __aarch64__
return true;
}
uint32_t *port_stack_get_limit(void) {
return (uint32_t *)0x4;
}
uint32_t *port_stack_get_top(void) {
return (uint32_t *)0x80000;
#else
return false;
#endif
}
// From the linker script
extern uint32_t __bss_end;
extern uint32_t _ld_ram_end;
uint32_t *port_stack_get_limit(void) {
#ifdef __aarch64__
return (uint32_t *)0x4;
#else
return &__bss_end;
#endif
}
uint32_t *port_stack_get_top(void) {
#ifdef __aarch64__
return (uint32_t *)0x80000;
#else
return &_ld_ram_end;
#endif
}
uint32_t *port_heap_get_bottom(void) {
return &__bss_end;
}
uint32_t *port_heap_get_top(void) {
// 32M heap
return (uint32_t *)(((uint64_t)&__bss_end) + 32 * 1024 * 1024);
return (uint32_t *)(((size_t)&__bss_end) + 32 * 1024 * 1024);
}
void port_set_saved_word(uint32_t value) {
// NOTE: This doesn't survive pressing the reset button (aka toggling RUN).
// watchdog_hw->scratch[0] = value;
__bss_end = value;
data_clean_and_invalidate(&__bss_end, sizeof(uint32_t));
}
uint32_t port_get_saved_word(void) {
// return watchdog_hw->scratch[0];
return 0;
return __bss_end;
}
uint64_t port_get_raw_ticks(uint8_t *subticks) {