-DECLARE_GLOBAL_DATA_PTR;
-
-/* Read commands array */
-static u8 spi_read_cmds_array[] = {
- CMD_READ_ARRAY_SLOW,
- CMD_READ_DUAL_OUTPUT_FAST,
- CMD_READ_DUAL_IO_FAST,
- CMD_READ_QUAD_OUTPUT_FAST,
-};
-
-static int spi_flash_set_qeb(struct spi_flash *flash, u8 idcode0)
-{
- switch (idcode0) {
-#if defined(CONFIG_SPI_FLASH_SPANSION) || defined(CONFIG_SPI_FLASH_WINBOND)
- case SPI_FLASH_CFI_MFR_SPANSION:
- case SPI_FLASH_CFI_MFR_WINBOND:
- return spi_flash_set_qeb_winspan(flash);
-#endif
-#ifdef CONFIG_SPI_FLASH_STMICRO
- case SPI_FLASH_CFI_MFR_STMICRO:
- debug("SF: QEB is volatile for %02x flash\n", idcode0);
- return 0;
-#endif
- default:
- printf("SF: Need set QEB func for %02x flash\n", idcode0);
- return -1;
- }
-}
-
-static struct spi_flash *spi_flash_validate_params(struct spi_slave *spi,
- u8 *idcode)
-{
- const struct spi_flash_params *params;
- struct spi_flash *flash;
- u8 cmd;
- u16 jedec = idcode[1] << 8 | idcode[2];
- u16 ext_jedec = idcode[3] << 8 | idcode[4];
-
- params = spi_flash_params_table;
- for (; params->name != NULL; params++) {
- if ((params->jedec >> 16) == idcode[0]) {
- if ((params->jedec & 0xFFFF) == jedec) {
- if (params->ext_jedec == 0)
- break;
- else if (params->ext_jedec == ext_jedec)
- break;
- }
- }
- }
-
- if (!params->name) {
- printf("SF: Unsupported flash IDs: ");
- printf("manuf %02x, jedec %04x, ext_jedec %04x\n",
- idcode[0], jedec, ext_jedec);
- return NULL;
- }
-
- flash = malloc(sizeof(*flash));
- if (!flash) {
- debug("SF: Failed to allocate spi_flash\n");
- return NULL;
- }
- memset(flash, '\0', sizeof(*flash));
-
- /* Assign spi data */
- flash->spi = spi;
- flash->name = params->name;
- flash->memory_map = spi->memory_map;
-
- /* Assign spi_flash ops */
- flash->write = spi_flash_cmd_write_ops;
-#ifdef CONFIG_SPI_FLASH_SST
- if (params->flags & SST_WP)
- flash->write = sst_write_wp;
-#endif
- flash->erase = spi_flash_cmd_erase_ops;
- flash->read = spi_flash_cmd_read_ops;
-
- /* Compute the flash size */
- flash->page_size = (ext_jedec == 0x4d00) ? 512 : 256;
- flash->sector_size = params->sector_size;
- flash->size = flash->sector_size * params->nr_sectors;
-
- /* Compute erase sector and command */
- if (params->flags & SECT_4K) {
- flash->erase_cmd = CMD_ERASE_4K;
- flash->erase_size = 4096;
- } else if (params->flags & SECT_32K) {
- flash->erase_cmd = CMD_ERASE_32K;
- flash->erase_size = 32768;
- } else {
- flash->erase_cmd = CMD_ERASE_64K;
- flash->erase_size = flash->sector_size;
- }
-
- /* Look for the fastest read cmd */
- cmd = fls(params->e_rd_cmd & flash->spi->op_mode_rx);
- if (cmd) {
- cmd = spi_read_cmds_array[cmd - 1];
- flash->read_cmd = cmd;
- } else {
- /* Go for for default supported read cmd */
- flash->read_cmd = CMD_READ_ARRAY_FAST;
- }
-
- /* Not require to look for fastest only two write cmds yet */
- if (params->flags & WR_QPP && flash->spi->op_mode_tx & SPI_OPM_TX_QPP)
- flash->write_cmd = CMD_QUAD_PAGE_PROGRAM;
- else
- /* Go for default supported write cmd */
- flash->write_cmd = CMD_PAGE_PROGRAM;
-
- /* Set the quad enable bit - only for quad commands */
- if ((flash->read_cmd == CMD_READ_QUAD_OUTPUT_FAST) ||
- (flash->write_cmd == CMD_QUAD_PAGE_PROGRAM)) {
- if (spi_flash_set_qeb(flash, idcode[0])) {
- debug("SF: Fail to set QEB for %02x\n", idcode[0]);
- return NULL;
- }
- }
-
- /* Poll cmd seclection */
- flash->poll_cmd = CMD_READ_STATUS;
-#ifdef CONFIG_SPI_FLASH_STMICRO
- if (params->flags & E_FSR)
- flash->poll_cmd = CMD_FLAG_STATUS;
-#endif
-
- /* Configure the BAR - discover bank cmds and read current bank */
-#ifdef CONFIG_SPI_FLASH_BAR
- u8 curr_bank = 0;
- if (flash->size > SPI_FLASH_16MB_BOUN) {
- flash->bank_read_cmd = (idcode[0] == 0x01) ?
- CMD_BANKADDR_BRRD : CMD_EXTNADDR_RDEAR;
- flash->bank_write_cmd = (idcode[0] == 0x01) ?
- CMD_BANKADDR_BRWR : CMD_EXTNADDR_WREAR;
-
- if (spi_flash_read_common(flash, &flash->bank_read_cmd, 1,
- &curr_bank, 1)) {
- debug("SF: fail to read bank addr register\n");
- return NULL;
- }
- flash->bank_curr = curr_bank;
- } else {
- flash->bank_curr = curr_bank;
- }
-#endif
-
- /* Flash powers up read-only, so clear BP# bits */
-#if defined(CONFIG_SPI_FLASH_ATMEL) || \
- defined(CONFIG_SPI_FLASH_MACRONIX) || \
- defined(CONFIG_SPI_FLASH_SST)
- spi_flash_cmd_write_status(flash, 0);
-#endif
-
- return flash;
-}
-
-#ifdef CONFIG_OF_CONTROL
-int spi_flash_decode_fdt(const void *blob, struct spi_flash *flash)
-{
- fdt_addr_t addr;
- fdt_size_t size;
- int node;
-
- /* If there is no node, do nothing */
- node = fdtdec_next_compatible(blob, 0, COMPAT_GENERIC_SPI_FLASH);
- if (node < 0)
- return 0;
-
- addr = fdtdec_get_addr_size(blob, node, "memory-map", &size);
- if (addr == FDT_ADDR_T_NONE) {
- debug("%s: Cannot decode address\n", __func__);
- return 0;
- }
-
- if (flash->size != size) {
- debug("%s: Memory map must cover entire device\n", __func__);
- return -1;
- }
- flash->memory_map = map_sysmem(addr, size);
-
- return 0;
-}
-#endif /* CONFIG_OF_CONTROL */
-
-static struct spi_flash *spi_flash_probe_slave(struct spi_slave *spi)