webadmin/pico-keys-sdk
1
0
Fork 0
mirror of https://github.com/polhenarejos/pico-keys-sdk synced 2026-06-10 11:59:05 +02:00
Code Issues Packages Projects Releases Wiki Activity

Compute flash memory bounds depending on the partition if available.

Browse Source 
Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2024-12-30 21:27:46 +01:00
parent 5508c082e5
commit 1d89c14268
2 changed files with 57 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
src/fs/low_flash.c
View File

@@ -29,6 +29,8 @@
#include "pico/mutex.h"
#include "pico/sem.h"
#include "pico/multicore.h"
#include "pico/bootrom.h"
#include "boot/picobin.h"
#else
#ifdef _MSC_VER
#include <windows.h>
@@ -56,7 +58,11 @@
#endif
#endif
#define FLASH_SECTOR_SIZE 4096
#ifdef ESP_PLATFORM
extern uint32_t PICO_FLASH_SIZE_BYTES;
#else
#define PICO_FLASH_SIZE_BYTES (8 * 1024 * 1024)
#endif
#define XIP_BASE 0
int fd_map = 0;
uint8_t *map = NULL;
@@ -65,10 +71,11 @@
#define TOTAL_FLASH_PAGES 6
extern void flash_set_bounds(uintptr_t start, uintptr_t end);
extern const uintptr_t start_data_pool;
extern const uintptr_t end_rom_pool;
typedef struct page_flash {
uint8_t page[FLASH_SECTOR_SIZE];
uintptr_t address;
@@ -126,10 +133,7 @@ void do_flash() {
;
}
//printf("WRITTING\n");
flash_range_erase(flash_pages[r].address - XIP_BASE,
flash_pages[r].page_size ? ((int) (flash_pages[r].page_size /
FLASH_SECTOR_SIZE)) *
FLASH_SECTOR_SIZE : FLASH_SECTOR_SIZE);
flash_range_erase(flash_pages[r].address - XIP_BASE, flash_pages[r].page_size ? ((int) (flash_pages[r].page_size / FLASH_SECTOR_SIZE)) * FLASH_SECTOR_SIZE : FLASH_SECTOR_SIZE);
while (multicore_lockout_end_timeout_us(1000) == false) {
;
}
@@ -162,17 +166,48 @@ void low_flash_init() {
memset(flash_pages, 0, sizeof(page_flash_t) * TOTAL_FLASH_PAGES);
mutex_init(&mtx_flash);
sem_init(&sem_flash, 0, 1);
uint32_t data_start_addr;
uint32_t data_end_addr;
#if defined(ENABLE_EMULATION)
fd_map = open("memory.flash", O_RDWR | O_CREAT, (mode_t) 0600);
lseek(fd_map, PICO_FLASH_SIZE_BYTES - 1, SEEK_SET);
write(fd_map, "", 1);
map = mmap(0, PICO_FLASH_SIZE_BYTES, PROT_READ | PROT_WRITE, MAP_SHARED, fd_map, 0);
#else
#if defined(ESP_PLATFORM)
data_start_addr = 0;
data_end_addr = PICO_FLASH_SIZE_BYTES;
#elif defined(ESP_PLATFORM)
part0 = esp_partition_find_first(0x40, 0x1, "part0");
esp_partition_mmap(part0, 0, part0->size, ESP_PARTITION_MMAP_DATA, (const void **)&map, (esp_partition_mmap_handle_t *)&fd_map);
data_start_addr = 0;
data_end_addr = part0->size;
PICO_FLASH_SIZE_BYTES = part0->size;
#elif defined(PICO_PLATFORM)
__attribute__((aligned(4))) uint8_t workarea[4 * 1024];
int rc = rom_load_partition_table(workarea, sizeof(workarea), false);
if (rc) {
reset_usb_boot(0, 0);
}
uint8_t boot_partition = 1;
rc = rom_get_partition_table_info((uint32_t*)workarea, 0x8, PT_INFO_PARTITION_LOCATION_AND_FLAGS | PT_INFO_SINGLE_PARTITION | (boot_partition << 24));
if (rc != 3) {
data_start_addr = (PICO_FLASH_SIZE_BYTES >> 1);
data_end_addr = PICO_FLASH_SIZE_BYTES;
} else {
uint16_t first_sector_number = (((uint32_t*)workarea)[1] & PICOBIN_PARTITION_LOCATION_FIRST_SECTOR_BITS) >> PICOBIN_PARTITION_LOCATION_FIRST_SECTOR_LSB;
uint16_t last_sector_number = (((uint32_t*)workarea)[1] & PICOBIN_PARTITION_LOCATION_LAST_SECTOR_BITS) >> PICOBIN_PARTITION_LOCATION_LAST_SECTOR_LSB;
data_start_addr = first_sector_number * FLASH_SECTOR_SIZE;
data_end_addr = (last_sector_number + 1) * FLASH_SECTOR_SIZE;
}
#ifdef PICO_RP2350 // For compatibility with RP2040
data_end_addr -= 2 * FLASH_SECTOR_SIZE;
#endif
data_start_addr += XIP_BASE;
data_end_addr += XIP_BASE;
#endif
flash_set_bounds(data_start_addr, data_end_addr);
}
void low_flash_init_core1() {
@@ -205,10 +240,7 @@ page_flash_t *find_free_page(uintptr_t addr) {
#ifdef PICO_PLATFORM
memcpy(p->page, (uint8_t *) addr_alg, FLASH_SECTOR_SIZE);
#else
memcpy(p->page,
(addr >= start_data_pool &&
addr <= end_rom_pool + sizeof(uintptr_t)) ? (uint8_t *) (map + addr_alg) : (uint8_t *) addr_alg,
FLASH_SECTOR_SIZE);
memcpy(p->page, (addr >= start_data_pool && addr <= end_rom_pool + sizeof(uintptr_t)) ? (uint8_t *) (map + addr_alg) : (uint8_t *) addr_alg, FLASH_SECTOR_SIZE);
#endif
ready_pages++;
p->address = addr_alg;