static int setup_flash_device(void) { #ifdef CONFIG_DM_SPI_FLASH struct udevice *new; int ret; /* speed and mode will be read from DT */ ret = spi_flash_probe_bus_cs(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, 0, 0, &new); if (ret) { set_default_env("!spi_flash_probe_bus_cs() failed"); return ret; } env_flash = dev_get_uclass_priv(new); #else if (!env_flash) { env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); if (!env_flash) { set_default_env("!spi_flash_probe() failed"); return -EIO; } } #endif return 0; }
static int init_pcie_bridge_from_spi(void *buf, size_t size) { struct spi_flash *spi; int ret; unsigned long pcie_addr; spi = spi_flash_probe(0, 0, 1000000, SPI_MODE_3); if (!spi) { printf("%s: spi_flash probe error.\n", __func__); return 1; } if (is_sh7757_b0()) pcie_addr = SH7757LCR_PCIEBRG_ADDR_B0; else pcie_addr = SH7757LCR_PCIEBRG_ADDR; ret = spi_flash_read(spi, pcie_addr, size, buf); if (ret) { printf("%s: spi_flash read error.\n", __func__); spi_flash_free(spi); return 1; } spi_flash_free(spi); return 0; }
/* * The main entry for SPI booting. It's necessary that SDRAM is already * configured and available since this code loads the main U-Boot image * from SPI into SDRAM and starts it from there. */ void spl_spi_load_image(void) { struct spi_flash *flash; struct image_header *header; /* * Load U-Boot image from SPI flash into RAM */ flash = spi_flash_probe(CONFIG_SPL_SPI_BUS, CONFIG_SPL_SPI_CS, CONFIG_SF_DEFAULT_SPEED, SPI_MODE_3); if (!flash) { puts("SPI probe failed.\n"); hang(); } /* use CONFIG_SYS_TEXT_BASE as temporary storage area */ header = (struct image_header *)(CONFIG_SYS_TEXT_BASE); /* Load u-boot, mkimage header is 64 bytes. */ spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS, 0x40, (void *) header); spl_parse_image_header(header); spi_flash_read(flash, CONFIG_SYS_SPI_U_BOOT_OFFS, spl_image.size, (void *)spl_image.load_addr); }
static void board_identify(void) { struct spi_flash *sf; sf = spi_flash_probe(CONFIG_SF_DEFAULT_BUS, CONFIG_SF_DEFAULT_CS, CONFIG_SF_DEFAULT_SPEED, CONFIG_SF_DEFAULT_MODE); boot_mode_sf = (sf != NULL); }
void env_relocate_spec(void) { int ret; char *buf = NULL; buf = (char *)memalign(ARCH_DMA_MINALIGN, CONFIG_ENV_SIZE); env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); if (!env_flash) { set_default_env("!spi_flash_probe() failed"); if (buf) free(buf); return; } ret = spi_flash_read(env_flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, buf); if (ret) { set_default_env("!spi_flash_read() failed"); goto out; } ret = env_import(buf, 1); if (ret) gd->env_valid = 1; out: spi_flash_free(env_flash); if (buf) free(buf); env_flash = NULL; }
void spi_SaveS3info(u32 pos, u32 size, u8 *buf, u32 len) { struct spi_flash *flash; spi_init(); flash = spi_flash_probe(0, 0); if (!flash) { printk(BIOS_DEBUG, "Could not find SPI device\n"); /* Dont make flow stop. */ return; } flash->spi->rw = SPI_WRITE_FLAG; spi_claim_bus(flash->spi); flash->erase(flash, pos, size); flash->write(flash, pos, sizeof(len), &len); u32 nvram_pos; for (nvram_pos = 0; nvram_pos < len - CONFIG_AMD_SB_SPI_TX_LEN; nvram_pos += CONFIG_AMD_SB_SPI_TX_LEN) { flash->write(flash, nvram_pos + pos + 4, CONFIG_AMD_SB_SPI_TX_LEN, (u8 *)(buf + nvram_pos)); } flash->write(flash, nvram_pos + pos + 4, len % CONFIG_AMD_SB_SPI_TX_LEN, (u8 *)(buf + nvram_pos)); flash->spi->rw = SPI_WRITE_FLAG; spi_release_bus(flash->spi); return; }
int do_write_mac(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { int i, ret; char mac_string[256]; struct spi_flash *spi; unsigned char *buf; if (argc != 5) { buf = malloc(256); if (!buf) { printf("%s: malloc error.\n", __func__); return 1; } get_sh_eth_mac_raw(buf, 256); /* print current MAC address */ for (i = 0; i < 4; i++) { get_sh_eth_mac(i, mac_string, buf); if (i < 2) printf(" ETHERC ch%d = %s\n", i, mac_string); else printf("GETHERC ch%d = %s\n", i-2, mac_string); } free(buf); return 0; } /* new setting */ memset(mac_string, 0xff, sizeof(mac_string)); sprintf(mac_string, "%s\t%s\t%s\t%s", argv[1], argv[2], argv[3], argv[4]); /* write MAC data to SPI rom */ spi = spi_flash_probe(0, 0, 1000000, SPI_MODE_3); if (!spi) { printf("%s: spi_flash probe error.\n", __func__); return 1; } ret = spi_flash_erase(spi, SH7757LCR_ETHERNET_MAC_BASE_SPI, SH7757LCR_SPI_SECTOR_SIZE); if (ret) { printf("%s: spi_flash erase error.\n", __func__); return 1; } ret = spi_flash_write(spi, SH7757LCR_ETHERNET_MAC_BASE_SPI, sizeof(mac_string), mac_string); if (ret) { printf("%s: spi_flash write error.\n", __func__); spi_flash_free(spi); return 1; } spi_flash_free(spi); puts("The writing of the MAC address to SPI ROM was completed.\n"); return 0; }
static int sf_env_relocate_spec(unsigned int offset) { int ret; env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); if (!env_flash) goto err_probe; ret = spi_flash_read(env_flash, offset, CONFIG_ENV_SIZE, env_ptr); if (ret) goto err_read; if (crc32(0, env_ptr->data, ENV_SIZE) != env_ptr->crc) goto err_crc; gd->env_valid = 1; return 0; err_read: spi_flash_free(env_flash); env_flash = NULL; err_probe: err_crc: return 1; }
int zynq_board_read_rom_ethaddr(unsigned char *ethaddr) { #if defined(CONFIG_ZYNQ_GEM_EEPROM_ADDR) && \ defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET) if (eeprom_read(CONFIG_ZYNQ_GEM_EEPROM_ADDR, CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET, ethaddr, 6)) printf("I2C EEPROM MAC address read failed\n"); #endif #if defined(CONFIG_ZYNQ_QSPI) && \ defined(CONFIG_ZYNQ_GEM_SPI_MAC_OFFSET) #define CMD_OTPREAD_ARRAY_FAST 0x4b struct spi_flash *flash; flash = spi_flash_probe(CONFIG_SF_DEFAULT_BUS, CONFIG_SF_DEFAULT_CS, CONFIG_SF_DEFAULT_SPEED, CONFIG_SF_DEFAULT_MODE); if (!flash) { printf("SPI(bus:%u cs:%u) probe failed\n", CONFIG_SF_DEFAULT_BUS, CONFIG_SF_DEFAULT_CS); return 0; } /* set the cmd to otp read */ flash->read_cmd = CMD_OTPREAD_ARRAY_FAST; if (spi_flash_read(flash, CONFIG_ZYNQ_GEM_SPI_MAC_OFFSET, 6, ethaddr)) printf("SPI MAC address read failed\n"); if (flash) spi_flash_free(flash); #endif return 0; }
void env_relocate_spec(void) { char buf[CONFIG_ENV_SIZE]; int ret; env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); if (!env_flash) { set_default_env("!spi_flash_probe() failed"); return; } ret = spi_flash_read(env_flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, buf); if (ret) { set_default_env("!spi_flash_read() failed"); goto out; } ret = env_import(buf, 1); if (ret) gd->env_valid = 1; out: spi_flash_free(env_flash); env_flash = NULL; }
void env_relocate_spec(void) { int ret; //printf("+env_relocate_spec/spi_flash_probe=%d,%d,%d,%d\n\r",CONFIG_ENV_SPI_BUS,CONFIG_ENV_SPI_CS,CONFIG_ENV_SPI_MAX_HZ,CONFIG_ENV_SPI_MODE); env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); if (!env_flash) goto err_probe; ret = spi_flash_read(env_flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, env_ptr); if (ret) goto err_read; if (crc32(0, env_ptr->data, ENV_SIZE) != env_ptr->crc) goto err_crc; gd->env_valid = 1; return; err_read: spi_flash_free(env_flash); env_flash = NULL; err_probe: err_crc: puts("*** Warning - bad CRC, using default environment\n\n"); set_default_env(); }
static int get_mac_addr(u8 *addr) { int ret; struct spi_flash *flash; flash = spi_flash_probe(CFG_MAC_ADDR_SPI_BUS, CFG_MAC_ADDR_SPI_CS, CFG_MAC_ADDR_SPI_MAX_HZ, CFG_MAC_ADDR_SPI_MODE); if (!flash) { printf(" Error - unable to probe SPI flash.\n"); goto err_probe; } ret = spi_flash_read(flash, CFG_MAC_ADDR_OFFSET, 6, addr); if (ret) { printf("Error - unable to read MAC address from SPI flash.\n"); goto err_read; } err_read: /* cannot call free currently since the free function calls free() for * spi_flash structure though it is not directly allocated through * malloc() */ /* spi_flash_free(flash); */ err_probe: return ret; }
void spi_env_relocate_spec(void) { int ret; env_t env_buf; env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); if (!env_flash) goto err_probe; ret = spi_flash_read(env_flash, CONFIG_ENV_IN_SPI_OFFSET, CONFIG_ENV_SIZE, &env_buf); if (ret) goto err_read; env_import(&env_buf, 1); gd->env_valid = 1; return; err_read: spi_flash_free(env_flash); env_flash = NULL; err_probe: //err_crc: set_default_env("!bad CRC"); }
static int initr_spiflash(void) { spi_flash_probe(CONFIG_SF_DEFAULT_BUS, CONFIG_SF_DEFAULT_CS, CONFIG_SF_DEFAULT_SPEED, CONFIG_SF_DEFAULT_MODE); return 0; }
int main(int argc, char **argv) { int ret; unsigned int cs = 0, max_hz = 0, spi_mode = 0; /* Dummy for now */ if (getuid() != 0) { fprintf(stderr, "Error: Not started with 'root'\n"); return -1; } if (bcm2835_init() != 1) { fprintf(stderr, "bcm2835_init() failed\n"); return -2; } ret = spi_flash_probe(cs, max_hz, spi_mode); printf("spi_flash_probe=%d\n", ret); if (ret == 0) { printf("Detected %s with sector size %d total %d bytes\n", spi_flash_get_name(), spi_flash_get_sector_size(), spi_flash_get_size()); } #if 0 int i; uint8_t buffer[16]; ret = spi_flash_cmd_erase(0, 4096); printf("spi_flash_cmd_erase=%d\n", ret); ret = spi_flash_cmd_read_fast(0, sizeof(buffer), buffer); printf("spi_flash_cmd_read_fast=%d\n", ret); for (i = 0; i < sizeof(buffer); i++) { printf("%.2x[%c]", buffer[i], isprint(buffer[i]) ? buffer[i] : '.'); } printf("\n"); ret = spi_flash_cmd_write_multi(0, 6, (const void *)"Arjan"); printf("spi_flash_cmd_write_multi=%d\n", ret); ret = spi_flash_cmd_read_fast(0, sizeof(buffer), buffer); printf("spi_flash_cmd_read_fast=%d\n", ret); for (i = 0; i < sizeof(buffer); i++) { printf("%.2x[%c]", buffer[i], isprint(buffer[i]) ? buffer[i] : '.'); } #endif printf("\nDone!\n"); return 0; }
inline int init_flash(void) { flash_device = spi_flash_probe(0, 0, 0, 0); if (!flash_device) return -1; return 0; }
unsigned long spi_flash_init(void) { flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, CONFIG_ENV_SPI_MAX_HZ, SPI_MODE_3); if (!flash) { printf("Failed to initialize SPI flash at %u:%u\n", CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS); return 1; } return 0; }
/* * The main entry for SPI booting. It's necessary that SDRAM is already * configured and available since this code loads the main U-Boot image * from SPI into SDRAM and starts it from there. */ void spi_boot(void) { void (*uboot)(void) __noreturn; u32 offset, code_len, copy_len = 0; #ifndef CONFIG_FSL_CORENET unsigned char *buf = NULL; #endif struct spi_flash *flash; flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); if (flash == NULL) { puts("\nspi_flash_probe failed"); hang(); } #ifdef CONFIG_FSL_CORENET offset = CONFIG_SYS_SPI_FLASH_U_BOOT_OFFS; code_len = CONFIG_SYS_SPI_FLASH_U_BOOT_SIZE; #else /* * Load U-Boot image from SPI flash into RAM */ buf = malloc(flash->page_size); if (buf == NULL) { puts("\nmalloc failed"); hang(); } memset(buf, 0, flash->page_size); spi_flash_read(flash, CONFIG_CFG_DATA_SECTOR, flash->page_size, (void *)buf); offset = *(u32 *)(buf + ESPI_BOOT_IMAGE_ADDR); /* Skip spl code */ offset += CONFIG_SYS_SPI_FLASH_U_BOOT_OFFS; /* Get the code size from offset 0x48 */ code_len = *(u32 *)(buf + ESPI_BOOT_IMAGE_SIZE); /* Skip spl code */ code_len = code_len - CONFIG_SPL_MAX_SIZE; #endif /* copy code to DDR */ printf("Loading second stage boot loader "); while (copy_len <= code_len) { spi_flash_read(flash, offset + copy_len, 0x2000, (void *)(CONFIG_SYS_SPI_FLASH_U_BOOT_DST + copy_len)); copy_len = copy_len + 0x2000; putc('.'); } /* * Jump to U-Boot image */ flush_cache(CONFIG_SYS_SPI_FLASH_U_BOOT_DST, code_len); uboot = (void *)CONFIG_SYS_SPI_FLASH_U_BOOT_START; (*uboot)(); }
u32 OemAgesaSaveS3Info(S3_DATA_TYPE S3DataType, u32 DataSize, void *Data) { u32 pos; struct spi_flash *flash; u8 *new_data; u32 bytes_to_process; u32 nvram_pos; if (S3DataType == S3DataTypeNonVolatile) pos = S3_DATA_NONVOLATILE_POS; else pos = S3_DATA_VOLATILE_POS; spi_init(); flash = spi_flash_probe(0, 0, 0, 0); if (!flash) { printk(BIOS_DEBUG, "%s: Could not find SPI device\n", __func__); /* Don't make flow stop. */ return AGESA_SUCCESS; } flash->spi->rw = SPI_WRITE_FLAG; spi_claim_bus(flash->spi); // initialize the incoming data array new_data = (u8 *)malloc(DataSize + (u32)sizeof(DataSize)); memcpy(new_data, &DataSize, (u32)sizeof(DataSize)); // the size gets written first memcpy(new_data + (u32)sizeof(DataSize), Data, DataSize); DataSize += (u32)sizeof(DataSize); // add in the size of the data for ( ; DataSize > 0; DataSize -= bytes_to_process) { bytes_to_process = ( DataSize >= flash->sector_size) ? flash->sector_size : DataSize; if (memcmp((u8 *)pos, (u8 *)new_data, bytes_to_process)) { printk(BIOS_DEBUG, "%s: Data mismatch - write the data\n", __func__); flash->erase(flash, pos, flash->sector_size); for (nvram_pos = 0; \ nvram_pos < bytes_to_process - (bytes_to_process % CONFIG_AMD_SB_SPI_TX_LEN); \ nvram_pos += CONFIG_AMD_SB_SPI_TX_LEN) { flash->write(flash, pos + nvram_pos, CONFIG_AMD_SB_SPI_TX_LEN, \ (u8 *)(new_data + nvram_pos)); } flash->write(flash, pos + nvram_pos, bytes_to_process % CONFIG_AMD_SB_SPI_TX_LEN, \ (u8 *)(new_data + nvram_pos)); } else printk(BIOS_DEBUG, "%s: existing nvram data matched\n", __func__); new_data += bytes_to_process; pos += bytes_to_process; } free(new_data); flash->spi->rw = SPI_WRITE_FLAG; spi_release_bus(flash->spi); return AGESA_SUCCESS; }
static int set_arc_product(int argc, char *const argv[]) { int err = 0; char *mystrerr = "ERROR: Failed to save factory info in spi location"; if (argc != 5) return -1; /* Check serial number */ if (strlen(argv[1]) != MAX_SERIAL_SIZE) return -1; /* Check HWaddrs */ if (ishwaddr(argv[2]) || ishwaddr(argv[3]) || ishwaddr(argv[4])) return -1; strcpy(smac[3], argv[1]); strcpy(smac[2], argv[2]); strcpy(smac[1], argv[3]); strcpy(smac[0], argv[4]); flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); /* * Save factory defaults */ if (spi_flash_write(flash, FIRM_ADDR1, sizeof(smac), smac)) { printf("%s: %s [1]\n", __func__, mystrerr); err++; } if (spi_flash_write(flash, FIRM_ADDR2, sizeof(smac), smac)) { printf("%s: %s [2]\n", __func__, mystrerr); err++; } if (spi_flash_write(flash, FIRM_ADDR3, sizeof(smac), smac)) { printf("%s: %s [3]\n", __func__, mystrerr); err++; } if (spi_flash_write(flash, FIRM_ADDR4, sizeof(smac), smac)) { printf("%s: %s [4]\n", __func__, mystrerr); err++; } if (err == 4) { printf("%s: %s [ALL]\n", __func__, mystrerr); return -2; } return 0; }
void boot_device_init(void) { int bus = CONFIG_BOOT_MEDIA_SPI_BUS; int cs = 0; if (spi_flash_info != NULL) return; spi_flash_info = spi_flash_probe(bus, cs); mmap_helper_device_init(&mdev, _cbfs_cache, _cbfs_cache_size); }
spiflash_logic_t *spiflash_logic_open(unsigned long long address, unsigned long long length) { struct mtd_info_ex *mtd_info_ex; spiflash_logic_t *spiflash_logic; struct spi_flash *spiflash; spiflash = spi_flash_probe(0,0,0,0); if (spiflash == NULL) { printf("no devices available\n"); return NULL; } mtd_info_ex = get_spiflash_info(); if (mtd_info_ex == NULL) { printf("get spi flash info failed\n"); return NULL; } /* Reject open, which are not block aligned */ if ((address & (mtd_info_ex->erasesize - 1)) || (length & (mtd_info_ex->erasesize - 1))) { printf("Attempt to open non block aligned, " "spi flash blocksize: 0x%08x, address: 0x%08llx," " length: 0x%08llx\n", mtd_info_ex->erasesize, address, length); return NULL; } if ((address > spiflash->size) || (length > spiflash->size) || ((address + length) > spiflash->size)) { printf("Attempt to open outside the flash area, " "spi flash chipsize: 0x%08x, address: 0x%08llx," " length: 0x%08llx\n", spiflash->size, address, length); return NULL; } spiflash_logic = malloc(sizeof(spiflash_logic_t)); if (!spiflash_logic) { printf("no many memory.\n"); return NULL; } spiflash_logic->spiflash = spiflash; spiflash_logic->address = address; spiflash_logic->length = length; spiflash_logic->erasesize = mtd_info_ex->erasesize; return spiflash_logic; }
static void boot_device_rw_init(void) { const int bus = CONFIG_BOOT_DEVICE_SPI_FLASH_BUS; const int cs = 0; if (car_get_var(sfg) != NULL) return; /* Ensure any necessary setup is performed by the drivers. */ spi_init(); car_set_var(sfg, spi_flash_probe(bus, cs)); }
static int splash_sf_read_raw(u32 bmp_load_addr, int offset, size_t read_size) { if (!sf) { sf = spi_flash_probe(CONFIG_SF_DEFAULT_BUS, CONFIG_SF_DEFAULT_CS, CONFIG_SF_DEFAULT_SPEED, CONFIG_SF_DEFAULT_MODE); if (!sf) return -ENODEV; } return spi_flash_read(sf, offset, read_size, (void *)bmp_load_addr); }
void spi_spl_load_image(uint32_t offs, unsigned int size, void *vdst) { struct spi_flash *flash; flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); if (flash == NULL) { puts("\nspi_flash_probe failed"); hang(); } spi_flash_read(flash, offs, size, vdst); }
static void boot_device_rw_init(void) { const int bus = CONFIG_BOOT_DEVICE_SPI_FLASH_BUS; const int cs = 0; if (car_get_var(sfg_init_done) == true) return; /* Ensure any necessary setup is performed by the drivers. */ spi_init(); if (!spi_flash_probe(bus, cs, car_get_var_ptr(&sfg))) car_set_var(sfg_init_done, true); }
static int nvm_init(void) { if (flash != NULL) return 0; spi_init(); flash = spi_flash_probe(0, 0); if (!flash) { printk(BIOS_DEBUG, "Could not find SPI device\n"); return -1; } return 0; }
static void erase_environment(void) { struct spi_flash *flash; printf("Erasing environment..\n"); flash = spi_flash_probe(0, 0, 1000000, SPI_MODE_3); if (!flash) { printf("Erasing flash failed\n"); return; } spi_flash_erase(flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE); spi_flash_free(flash); do_reset(NULL, 0, 0, NULL); }
uint32 spi_flash_get_size(void) { sint8 ret = M2M_SUCCESS; uint32 u32FlashId = 0, u32FlashPwr = 0; if(!gu32InernalFlashSize) { ret = spi_flash_probe(&u32FlashId); if((u32FlashId != 0xffffffff)&&(ret == M2M_SUCCESS)) { /*flash size is the third byte from the FLASH RDID*/ u32FlashPwr = ((u32FlashId>>16)&0xff) - 0x11; /*2MBIT is the min*/ /*That number power 2 to get the flash size*/ gu32InernalFlashSize = 1<<u32FlashPwr; M2M_INFO("Flash Size %d MBit\n",gu32InernalFlashSize); }
void env_relocate_spec(void) { int ret; char buf[CONFIG_ENV_SIZE]; env_t *tmp_env; tmp_env = (env_t*)buf; env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS, CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE); if (!env_flash) { set_default_env("!spi_flash_probe() failed"); return; } ret = spi_flash_read(env_flash, CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, tmp_env); if (ret) { set_default_env("!spi_flash_read() failed"); goto out; } if (crc32(0, tmp_env->data, ENV_SIZE) == tmp_env->crc) { gd->env_valid = 1; } else { ret = spi_flash_read(env_flash, CONFIG_ENV_OFFSET_REDUND, CONFIG_ENV_SIZE, tmp_env); if (ret) { set_default_env("!spi_flash_read() failed"); goto out; } if (crc32(0, tmp_env->data, ENV_SIZE) != tmp_env->crc) { set_default_env("!both CRC failed"); goto out; } gd->env_valid = 2; } ret = env_import(buf, 0); if (!ret) { error("Cannot import environment: errno = %d\n", errno); set_default_env("env_import failed"); } out: spi_flash_free(env_flash); env_flash = NULL; }