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#include <stdint.h>
#include <string.h>
#include "flash.h"
#include "fsl_debug_console.h"
#include "SSD_FTFx.h"
FLASH_SSD_CONFIG flash_config = {
.ftfxRegBase = FTFA_BASE,
.PFlashBase = 0x00000000,
.PFlashSize = FSL_FEATURE_FLASH_PFLASH_BLOCK_SIZE
* FSL_FEATURE_FLASH_PFLASH_BLOCK_COUNT,
.DFlashBase = 0,
.DFlashSize = 0,
.EERAMBase = 0,
.EEESize = 0,
.DebugEnable = 0,
.CallBack = NULL_CALLBACK,
};
uint8_t ram_fn[0x30];
pFLASHCOMMANDSEQUENCE pFlashCommandSequence;
uint8_t *images[IMAGE_COUNT];
int flash_init()
{
uint32_t rc;
rc = FlashInit(&flash_config);
debug_printf("FlashInit returned %u\r\n", rc);
if (FTFx_OK != rc) {
return -1;
}
pFlashCommandSequence = (pFLASHCOMMANDSEQUENCE)RelocateFunction(
(intptr_t)ram_fn,
sizeof ram_fn,
(intptr_t)FlashCommandSequence);
/* Our images are in the 2nd block and take up 4096 bytes */
int i;
for (i = 0; i < IMAGE_COUNT; ++i) {
images[i] = (uint8_t *)flash_config.PFlashBase
+ FSL_FEATURE_FLASH_PFLASH_BLOCK_SIZE + i * 4096;
}
return 0;
}
#define SECTOR_SIZE (FSL_FEATURE_FLASH_PFLASH_BLOCK_SECTOR_SIZE)
#define MIN(a, b) ((a) < (b) ? (a) : (b))
uint8_t RMW_buffer[SECTOR_SIZE];
int flash_write(uint32_t addr, uint8_t *data, uint32_t len)
{
uint32_t sector;
uint32_t end = addr + len;
for (sector = addr / SECTOR_SIZE * SECTOR_SIZE;
sector < end;
data += SECTOR_SIZE - (addr - sector),
len -= SECTOR_SIZE - (addr - sector),
sector += SECTOR_SIZE,
addr = sector) {
uint32_t rc;
memcpy(RMW_buffer, (void *)sector, SECTOR_SIZE);
memcpy(&RMW_buffer[addr - sector],
data,
MIN(SECTOR_SIZE - (addr - sector), len));
rc = FlashEraseSector(&flash_config, sector, SECTOR_SIZE,
pFlashCommandSequence);
if (FTFx_OK != rc) {
debug_printf("Error erasing sector 0x%08x: %u\r\n", sector, rc);
return -1;
}
rc = FlashProgram(&flash_config, sector, SECTOR_SIZE, RMW_buffer,
pFlashCommandSequence);
if (FTFx_OK != rc) {
debug_printf("Error programming sector 0x%08x: %u\r\n", sector, rc);
return -1;
}
}
return 0;
}
/* vim: set expandtab ts=4 sw=4: */
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