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Merge pull request #1779 from dhalbert/nrf-nvm-2 

nrf nvm: touchups to nickzoic PR #1768
This commit is contained in:
Scott Shawcroft 2019-04-15 14:23:35 -07:00 committed by GitHub
parent 7ef3f37772 864910559b
commit 7573da03f6
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GPG Key ID: 4AEE18F83AFDEB23
12 changed files with 308 additions and 78 deletions
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1
ports/nrf/Makefile
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@ -177,6 +177,7 @@ SRC_C += \
peripherals/nrf/clocks.c \
peripherals/nrf/$(MCU_CHIP)/pins.c \
peripherals/nrf/$(MCU_CHIP)/power.c \
peripherals/nrf/nvm.c \
peripherals/nrf/timers.c \
sd_mutex.c \
supervisor/shared/memory.c

1
ports/nrf/boards/adafruit_nrf52840_s140_v6.ld
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@ -11,7 +11,6 @@
0x000ED000..0x000F3FFF (28KB ) Private Config Data (Bonding, Keys, etc.)
0x000AD000..0x000ECFFF (256KB) User Filesystem
0x00026000..0x000ACFFF (540KB) Application Code (including ISR vector)
0x00001000..0x00025FFF (148KB) SoftDevice
0x00000000..0x00000FFF (4KB) Master Boot Record

5
ports/nrf/boards/feather_nrf52840_express/mpconfigboard.h
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@ -33,6 +33,9 @@
#define MICROPY_HW_MCU_NAME "nRF52840"
#define MICROPY_PY_SYS_PLATFORM "Feather52840Express"
#define FLASH_SIZE (0x100000)
#define FLASH_PAGE_SIZE (4096)
#define MICROPY_HW_NEOPIXEL (&pin_P0_16)
#define MICROPY_HW_LED_STATUS (&pin_P1_15)
@ -55,7 +58,7 @@
#define CIRCUITPY_AUTORELOAD_DELAY_MS 500
// TODO #define CIRCUITPY_INTERNAL_NVM_SIZE 8192
#define CIRCUITPY_INTERNAL_NVM_SIZE (4096)
#define BOARD_FLASH_SIZE (FLASH_SIZE - 0x4000 - CIRCUITPY_INTERNAL_NVM_SIZE)

15
ports/nrf/common-hal/microcontroller/__init__.c
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@ -24,9 +24,14 @@
* THE SOFTWARE.
*/
#include "py/mphal.h"
#include "py/obj.h"
#include "py/runtime.h"
#include "common-hal/microcontroller/Pin.h"
#include "common-hal/microcontroller/Processor.h"
#include "shared-bindings/nvm/ByteArray.h"
#include "shared-bindings/microcontroller/__init__.h"
#include "shared-bindings/microcontroller/Pin.h"
#include "shared-bindings/microcontroller/Processor.h"
@ -63,6 +68,16 @@ const mcu_processor_obj_t common_hal_mcu_processor_obj = {
},
};
#if CIRCUITPY_INTERNAL_NVM_SIZE > 0
// The singleton nvm.ByteArray object.
const nvm_bytearray_obj_t common_hal_mcu_nvm_obj = {
.base = {
.type = &nvm_bytearray_type,
},
.len = CIRCUITPY_INTERNAL_NVM_SIZE,
.start_address = (uint8_t*) (FLASH_SIZE - CIRCUITPY_INTERNAL_NVM_SIZE),
};
#endif
STATIC const mp_rom_map_elem_t mcu_pin_globals_table[] = {
{ MP_ROM_QSTR(MP_QSTR_P0_00), MP_ROM_PTR(&pin_P0_00) },

77
ports/nrf/common-hal/nvm/ByteArray.c Normal file
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@ -0,0 +1,77 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Nick Moore 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 "common-hal/nvm/ByteArray.h"
#include <stdio.h>
#include <string.h>
#include "peripherals/nrf/nvm.h"
// defined in linker
extern uint32_t __fatfs_flash_start_addr[];
extern uint32_t __fatfs_flash_length[];
uint32_t common_hal_nvm_bytearray_get_length(nvm_bytearray_obj_t *self) {
return self->len;
}
static void write_page(uint8_t* page_addr, uint32_t offset, uint32_t len, uint8_t *bytes) {
// Write a whole page to flash, buffering it first and then erasing and rewriting
// it since we can only clear a whole page at a time.
if (offset == 0 && len == FLASH_PAGE_SIZE) {
nrf_nvm_safe_flash_page_write((uint32_t) page_addr, bytes);
} else {
uint8_t buffer[FLASH_PAGE_SIZE];
memcpy(buffer, page_addr, FLASH_PAGE_SIZE);
memcpy(buffer + offset, bytes, len);
nrf_nvm_safe_flash_page_write((uint32_t) page_addr, buffer);
}
}
bool common_hal_nvm_bytearray_set_bytes(nvm_bytearray_obj_t *self,
uint32_t start_index, uint8_t* values, uint32_t len) {
uint32_t address = ((uint32_t) self->start_address) + start_index;
uint32_t offset = address % FLASH_PAGE_SIZE;
uint32_t page_addr = address - offset;
while (len) {
uint32_t write_len = MIN(len, FLASH_PAGE_SIZE - offset);
write_page((uint8_t*) page_addr, offset, write_len, values);
len -= write_len;
values += write_len;
page_addr += FLASH_PAGE_SIZE;
offset = 0;
}
return true;
}
void common_hal_nvm_bytearray_get_bytes(nvm_bytearray_obj_t *self,
uint32_t start_index, uint32_t len, uint8_t* values) {
memcpy(values, self->start_address + start_index, len);
}

38
ports/nrf/common-hal/nvm/ByteArray.h Normal file
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@ -0,0 +1,38 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Nick Moore 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.
*/
#ifndef MICROPY_INCLUDED_NRF_COMMON_HAL_NVM_BYTEARRAY_H
#define MICROPY_INCLUDED_NRF_COMMON_HAL_NVM_BYTEARRAY_H
#include "py/obj.h"
typedef struct {
mp_obj_base_t base;
uint8_t* start_address;
uint32_t len;
} nvm_bytearray_obj_t;
#endif // MICROPY_INCLUDED_NRF_COMMON_HAL_NVM_BYTEARRAY_H

27
ports/nrf/common-hal/nvm/__init__.c Normal file
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@ -0,0 +1,27 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Nick Moore 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.
*/
// No nvm module functions.

4
ports/nrf/mpconfigport.mk
View File

@ -19,8 +19,8 @@ CIRCUITPY_AUDIOBUSIO = 0
# No I2CSlave implementation
CIRCUITPY_I2CSLAVE = 0
# nvm not yet implemented
CIRCUITPY_NVM = 0
# enable NVM
CIRCUITPY_NVM = 1
# enable RTC
CIRCUITPY_RTC = 1

95
ports/nrf/peripherals/nrf/nvm.c Normal file
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@ -0,0 +1,95 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
* Copyright (c) 2019 Nick Moore 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 "py/runtime.h"
#include <stdio.h>
#include <string.h>
#include "nrf_nvmc.h"
#define FLASH_PAGE_SIZE (4096)
#ifdef BLUETOOTH_SD
#include "ble_drv.h"
#include "nrf_sdm.h"
STATIC void sd_flash_operation_start(void) {
sd_flash_operation_status = SD_FLASH_OPERATION_IN_PROGRESS;
}
STATIC sd_flash_operation_status_t sd_flash_operation_wait_until_done(void) {
while (sd_flash_operation_status == SD_FLASH_OPERATION_IN_PROGRESS) {
sd_app_evt_wait();
}
return sd_flash_operation_status;
}
#endif
void nrf_nvm_safe_flash_page_write(uint32_t page_addr, uint8_t *data) {
#ifdef BLUETOOTH_SD
uint8_t sd_en = 0;
(void) sd_softdevice_is_enabled(&sd_en);
if (sd_en) {
uint32_t err_code;
sd_flash_operation_status_t status;
sd_flash_operation_start();
err_code = sd_flash_page_erase(page_addr / FLASH_PAGE_SIZE);
if (err_code != NRF_SUCCESS) {
mp_raise_OSError_msg_varg(translate("Flash erase failed to start, err 0x%04x"), err_code);
}
status = sd_flash_operation_wait_until_done();
if (status == SD_FLASH_OPERATION_ERROR) {
mp_raise_OSError_msg(translate("Flash erase failed"));
}
// Divide a full page into parts, because writing a full page causes an assertion failure.
// See https://devzone.nordicsemi.com/f/nordic-q-a/40088/sd_flash_write-cause-nrf_fault_id_sd_assert/
const size_t BLOCK_PARTS = 2;
size_t words_to_write = FLASH_PAGE_SIZE / sizeof(uint32_t) / BLOCK_PARTS;
for (size_t i = 0; i < BLOCK_PARTS; i++) {
sd_flash_operation_start();
err_code = sd_flash_write(((uint32_t *)page_addr) + i * words_to_write,
(uint32_t *)data + i * words_to_write,
words_to_write);
if (err_code != NRF_SUCCESS) {
mp_raise_OSError_msg_varg(translate("Flash write failed to start, err 0x%04x"), err_code);
}
status = sd_flash_operation_wait_until_done();
if (status == SD_FLASH_OPERATION_ERROR) {
mp_raise_OSError_msg(translate("Flash write failed"));
}
}
return;
}
#endif
nrf_nvmc_page_erase(page_addr);
nrf_nvmc_write_bytes(page_addr, data, FLASH_PAGE_SIZE);
}

34
ports/nrf/peripherals/nrf/nvm.h Normal file
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@ -0,0 +1,34 @@
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2013, 2014 Damien P. George
* Copyright (c) 2019 Nick Moore 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.
*/
#define FLASH_PAGE_SIZE (4096)
#ifndef CIRCUITPY_INTERNAL_NVM_SIZE
#define CIRCUITPY_INTERNAL_NVM_SIZE (0)
#endif
void nrf_nvm_safe_flash_page_write(uint32_t page_addr, uint8_t *data);

86
ports/nrf/supervisor/internal_flash.c
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@ -35,7 +35,7 @@
#include "py/runtime.h"
#include "lib/oofatfs/ff.h"
#include "nrf_nvmc.h"
#include "peripherals/nrf/nvm.h"
#ifdef BLUETOOTH_SD
#include "ble_drv.h"
@ -47,9 +47,8 @@ extern uint32_t __fatfs_flash_start_addr[];
extern uint32_t __fatfs_flash_length[];
#define NO_CACHE 0xffffffff
#define FL_PAGE_SZ 4096
uint8_t _flash_cache[FL_PAGE_SZ] __attribute__((aligned(4)));
uint8_t _flash_cache[FLASH_PAGE_SIZE] __attribute__((aligned(4)));
uint32_t _flash_page_addr = NO_CACHE;
@ -68,81 +67,22 @@ uint32_t supervisor_flash_get_block_size(void) {
}
uint32_t supervisor_flash_get_block_count(void) {
return ((uint32_t) __fatfs_flash_length) / FILESYSTEM_BLOCK_SIZE ;
return ((uint32_t) __fatfs_flash_length - CIRCUITPY_INTERNAL_NVM_SIZE) / FILESYSTEM_BLOCK_SIZE ;
}
#ifdef BLUETOOTH_SD
STATIC void sd_flash_operation_start(void) {
sd_flash_operation_status = SD_FLASH_OPERATION_IN_PROGRESS;
}
STATIC sd_flash_operation_status_t sd_flash_operation_wait_until_done(void) {
while (sd_flash_operation_status == SD_FLASH_OPERATION_IN_PROGRESS) {
sd_app_evt_wait();
}
return sd_flash_operation_status;
}
#endif
void supervisor_flash_flush(void) {
if (_flash_page_addr == NO_CACHE) return;
// Skip if data is the same
if (memcmp(_flash_cache, (void *)_flash_page_addr, FL_PAGE_SZ) != 0) {
#ifdef BLUETOOTH_SD
uint8_t sd_en = 0;
(void) sd_softdevice_is_enabled(&sd_en);
if (sd_en) {
uint32_t err_code;
sd_flash_operation_status_t status;
sd_flash_operation_start();
err_code = sd_flash_page_erase(_flash_page_addr / FL_PAGE_SZ);
if (err_code != NRF_SUCCESS) {
mp_raise_OSError_msg_varg(translate("Flash erase failed to start, err 0x%04x"), err_code);
}
status = sd_flash_operation_wait_until_done();
if (status == SD_FLASH_OPERATION_ERROR) {
mp_raise_OSError_msg(translate("Flash erase failed"));
}
// Divide a full page into parts, because writing a full page causes an assertion failure.
// See https://devzone.nordicsemi.com/f/nordic-q-a/40088/sd_flash_write-cause-nrf_fault_id_sd_assert/
const size_t BLOCK_PARTS = 2;
size_t words_to_write = FL_PAGE_SZ / sizeof(uint32_t) / BLOCK_PARTS;
for (size_t i = 0; i < BLOCK_PARTS; i++) {
sd_flash_operation_start();
err_code = sd_flash_write(((uint32_t *)_flash_page_addr) + i * words_to_write,
(uint32_t *)_flash_cache + i * words_to_write,
words_to_write);
if (err_code != NRF_SUCCESS) {
mp_raise_OSError_msg_varg(translate("Flash write failed to start, err 0x%04x"), err_code);
}
status = sd_flash_operation_wait_until_done();
if (status == SD_FLASH_OPERATION_ERROR) {
mp_raise_OSError_msg(translate("Flash write failed"));
}
}
} else {
#endif
nrf_nvmc_page_erase(_flash_page_addr);
nrf_nvmc_write_words(_flash_page_addr, (uint32_t *)_flash_cache, FL_PAGE_SZ / sizeof(uint32_t));
#ifdef BLUETOOTH_SD
}
#endif
if (memcmp(_flash_cache, (void *)_flash_page_addr, FLASH_PAGE_SIZE) != 0) {
nrf_nvm_safe_flash_page_write(_flash_page_addr, _flash_cache);
}
_flash_page_addr = NO_CACHE;
}
void supervisor_flash_release_cache(void) {
}
mp_uint_t supervisor_flash_read_blocks(uint8_t *dest, uint32_t block, uint32_t num_blocks) {
// Must write out anything in cache before trying to read.
supervisor_flash_flush();
uint32_t src = lba2addr(block);
memcpy(dest, (uint8_t*) src, FILESYSTEM_BLOCK_SIZE*num_blocks);
return 0; // success
@ -151,21 +91,21 @@ mp_uint_t supervisor_flash_read_blocks(uint8_t *dest, uint32_t block, uint32_t n
mp_uint_t supervisor_flash_write_blocks(const uint8_t *src, uint32_t lba, uint32_t num_blocks) {
while (num_blocks) {
uint32_t const addr = lba2addr(lba);
uint32_t const page_addr = addr & ~(FL_PAGE_SZ - 1);
uint32_t const page_addr = addr & ~(FLASH_PAGE_SIZE - 1);
uint32_t count = 8 - (lba % 8); // up to page boundary
count = MIN(num_blocks, count);
if (page_addr != _flash_page_addr) {
supervisor_flash_flush();
nrf_nvm_safe_flash_page_write(_flash_page_addr, _flash_cache);
_flash_page_addr = page_addr;
// Copy the current contents of the entire page into the cache.
memcpy(_flash_cache, (void *)page_addr, FL_PAGE_SZ);
memcpy(_flash_cache, (void *)page_addr, FLASH_PAGE_SIZE);
}
// Overwrite part or all of the page cache with the src data.
memcpy(_flash_cache + (addr & (FL_PAGE_SZ - 1)), src, count * FILESYSTEM_BLOCK_SIZE);
memcpy(_flash_cache + (addr & (FLASH_PAGE_SIZE - 1)), src, count * FILESYSTEM_BLOCK_SIZE);
// adjust for next run
lba += count;
@ -175,3 +115,7 @@ mp_uint_t supervisor_flash_write_blocks(const uint8_t *src, uint32_t lba, uint32
return 0; // success
}
void supervisor_flash_release_cache(void) {
}

3
ports/nrf/supervisor/internal_flash.h
View File

@ -31,9 +31,6 @@
#include "py/mpconfig.h"
#define FLASH_PAGE_SIZE 0x1000
#define CIRCUITPY_INTERNAL_NVM_SIZE 0
#define INTERNAL_FLASH_SYSTICK_MASK (0x1ff) // 512ms
#define INTERNAL_FLASH_IDLE_TICK(tick) (((tick) & INTERNAL_FLASH_SYSTICK_MASK) == 2)