#include "spi_flash_internal.h"
-/* S25FLxx-specific commands */
-#define CMD_S25FLXX_READ 0x03 /* Read Data Bytes */
-#define CMD_S25FLXX_FAST_READ 0x0b /* Read Data Bytes at Higher Speed */
-#define CMD_S25FLXX_READID 0x90 /* Read Manufacture ID and Device ID */
-#define CMD_S25FLXX_WREN 0x06 /* Write Enable */
-#define CMD_S25FLXX_WRDI 0x04 /* Write Disable */
-#define CMD_S25FLXX_RDSR 0x05 /* Read Status Register */
-#define CMD_S25FLXX_WRSR 0x01 /* Write Status Register */
-#define CMD_S25FLXX_PP 0x02 /* Page Program */
-#define CMD_S25FLXX_SE 0xd8 /* Sector Erase */
-#define CMD_S25FLXX_BE 0xc7 /* Bulk Erase */
-#define CMD_S25FLXX_DP 0xb9 /* Deep Power-down */
-#define CMD_S25FLXX_RES 0xab /* Release from DP, and Read Signature */
-
-#define SPSN_ID_S25FL008A 0x0213
-#define SPSN_ID_S25FL016A 0x0214
-#define SPSN_ID_S25FL032A 0x0215
-#define SPSN_ID_S25FL064A 0x0216
-#define SPSN_ID_S25FL128P 0x2018
-#define SPSN_EXT_ID_S25FL128P_256KB 0x0300
-#define SPSN_EXT_ID_S25FL128P_64KB 0x0301
-
-#define SPANSION_SR_WIP (1 << 0) /* Write-in-Progress */
-
struct spansion_spi_flash_params {
u16 idcode1;
u16 idcode2;
- u16 page_size;
u16 pages_per_sector;
u16 nr_sectors;
const char *name;
};
-struct spansion_spi_flash {
- struct spi_flash flash;
- const struct spansion_spi_flash_params *params;
-};
-
-static inline struct spansion_spi_flash *to_spansion_spi_flash(struct spi_flash
- *flash)
-{
- return container_of(flash, struct spansion_spi_flash, flash);
-}
-
static const struct spansion_spi_flash_params spansion_spi_flash_table[] = {
{
- .idcode1 = SPSN_ID_S25FL008A,
+ .idcode1 = 0x0213,
.idcode2 = 0,
- .page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 16,
.name = "S25FL008A",
},
{
- .idcode1 = SPSN_ID_S25FL016A,
+ .idcode1 = 0x0214,
.idcode2 = 0,
- .page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 32,
.name = "S25FL016A",
},
{
- .idcode1 = SPSN_ID_S25FL032A,
+ .idcode1 = 0x0215,
.idcode2 = 0,
- .page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 64,
.name = "S25FL032A",
},
{
- .idcode1 = SPSN_ID_S25FL064A,
+ .idcode1 = 0x0216,
.idcode2 = 0,
- .page_size = 256,
.pages_per_sector = 256,
.nr_sectors = 128,
.name = "S25FL064A",
},
{
- .idcode1 = SPSN_ID_S25FL128P,
- .idcode2 = SPSN_EXT_ID_S25FL128P_64KB,
- .page_size = 256,
+ .idcode1 = 0x2018,
+ .idcode2 = 0x0301,
.pages_per_sector = 256,
.nr_sectors = 256,
.name = "S25FL128P_64K",
},
{
- .idcode1 = SPSN_ID_S25FL128P,
- .idcode2 = SPSN_EXT_ID_S25FL128P_256KB,
- .page_size = 256,
+ .idcode1 = 0x2018,
+ .idcode2 = 0x0300,
.pages_per_sector = 1024,
.nr_sectors = 64,
.name = "S25FL128P_256K",
},
+ {
+ .idcode1 = 0x0215,
+ .idcode2 = 0x4d00,
+ .pages_per_sector = 256,
+ .nr_sectors = 64,
+ .name = "S25FL032P",
+ },
+ {
+ .idcode1 = 0x2018,
+ .idcode2 = 0x4d01,
+ .pages_per_sector = 256,
+ .nr_sectors = 256,
+ .name = "S25FL129P_64K",
+ },
+ {
+ .idcode1 = 0x2019,
+ .idcode2 = 0x4d01,
+ .pages_per_sector = 256,
+ .nr_sectors = 512,
+ .name = "S25FL256S",
+ },
};
-static int spansion_wait_ready(struct spi_flash *flash, unsigned long timeout)
-{
- struct spi_slave *spi = flash->spi;
- unsigned long timebase;
- int ret;
- u8 status;
-
- timebase = get_timer(0);
- do {
- ret = spi_flash_cmd(spi, CMD_S25FLXX_RDSR, &status, sizeof(status));
- if (ret)
- return -1;
-
- if ((status & SPANSION_SR_WIP) == 0)
- break;
-
- } while (get_timer(timebase) < timeout);
-
-
- if ((status & SPANSION_SR_WIP) == 0)
- return 0;
-
- /* Timed out */
- return -1;
-}
-
-static int spansion_read_fast(struct spi_flash *flash,
- u32 offset, size_t len, void *buf)
-{
- struct spansion_spi_flash *spsn = to_spansion_spi_flash(flash);
- unsigned long page_addr;
- unsigned long page_size;
- u8 cmd[5];
-
- page_size = spsn->params->page_size;
- page_addr = offset / page_size;
-
- cmd[0] = CMD_READ_ARRAY_FAST;
- cmd[1] = page_addr >> 8;
- cmd[2] = page_addr;
- cmd[3] = offset % page_size;
- cmd[4] = 0x00;
-
- debug
- ("READ: 0x%x => cmd = { 0x%02x 0x%02x%02x%02x%02x } len = 0x%x\n",
- offset, cmd[0], cmd[1], cmd[2], cmd[3], cmd[4], len);
-
- return spi_flash_read_common(flash, cmd, sizeof(cmd), buf, len);
-}
-
-static int spansion_write(struct spi_flash *flash,
- u32 offset, size_t len, const void *buf)
-{
- struct spansion_spi_flash *spsn = to_spansion_spi_flash(flash);
- unsigned long page_addr;
- unsigned long byte_addr;
- unsigned long page_size;
- size_t chunk_len;
- size_t actual;
- int ret;
- u8 cmd[4];
-
- page_size = spsn->params->page_size;
- page_addr = offset / page_size;
- byte_addr = offset % page_size;
-
- ret = spi_claim_bus(flash->spi);
- if (ret) {
- debug("SF: Unable to claim SPI bus\n");
- return ret;
- }
-
- ret = 0;
- for (actual = 0; actual < len; actual += chunk_len) {
- chunk_len = min(len - actual, page_size - byte_addr);
-
- cmd[0] = CMD_S25FLXX_PP;
- cmd[1] = page_addr >> 8;
- cmd[2] = page_addr;
- cmd[3] = byte_addr;
-
- debug
- ("PP: 0x%p => cmd = { 0x%02x 0x%02x%02x%02x } chunk_len = %d\n",
- buf + actual, cmd[0], cmd[1], cmd[2], cmd[3], chunk_len);
-
- ret = spi_flash_cmd(flash->spi, CMD_S25FLXX_WREN, NULL, 0);
- if (ret < 0) {
- debug("SF: Enabling Write failed\n");
- break;
- }
-
- ret = spi_flash_cmd_write(flash->spi, cmd, 4,
- buf + actual, chunk_len);
- if (ret < 0) {
- debug("SF: SPANSION Page Program failed\n");
- break;
- }
-
- ret = spansion_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT);
- if (ret < 0) {
- debug("SF: SPANSION page programming timed out\n");
- break;
- }
-
- page_addr++;
- byte_addr = 0;
- }
-
- debug("SF: SPANSION: Successfully programmed %u bytes @ 0x%x\n",
- len, offset);
-
- spi_release_bus(flash->spi);
- return ret;
-}
-
-int spansion_erase(struct spi_flash *flash, u32 offset, size_t len)
-{
- struct spansion_spi_flash *spsn = to_spansion_spi_flash(flash);
- unsigned long sector_size;
- size_t actual;
- int ret;
- u8 cmd[4];
-
- /*
- * This function currently uses sector erase only.
- * probably speed things up by using bulk erase
- * when possible.
- */
-
- sector_size = spsn->params->page_size * spsn->params->pages_per_sector;
-
- if (offset % sector_size || len % sector_size) {
- debug("SF: Erase offset/length not multiple of sector size\n");
- return -1;
- }
-
- len /= sector_size;
- cmd[0] = CMD_S25FLXX_SE;
- cmd[2] = 0x00;
- cmd[3] = 0x00;
-
- ret = spi_claim_bus(flash->spi);
- if (ret) {
- debug("SF: Unable to claim SPI bus\n");
- return ret;
- }
-
- ret = 0;
- for (actual = 0; actual < len; actual++) {
- cmd[1] = (offset / sector_size) + actual;
-
- ret = spi_flash_cmd(flash->spi, CMD_S25FLXX_WREN, NULL, 0);
- if (ret < 0) {
- debug("SF: Enabling Write failed\n");
- break;
- }
-
- ret = spi_flash_cmd_write(flash->spi, cmd, 4, NULL, 0);
- if (ret < 0) {
- debug("SF: SPANSION page erase failed\n");
- break;
- }
-
- /* Up to 2 seconds */
- ret = spansion_wait_ready(flash, SPI_FLASH_PAGE_ERASE_TIMEOUT);
- if (ret < 0) {
- debug("SF: SPANSION page erase timed out\n");
- break;
- }
- }
-
- debug("SF: SPANSION: Successfully erased %u bytes @ 0x%x\n",
- len * sector_size, offset);
-
- spi_release_bus(flash->spi);
- return ret;
-}
-
struct spi_flash *spi_flash_probe_spansion(struct spi_slave *spi, u8 *idcode)
{
const struct spansion_spi_flash_params *params;
- struct spansion_spi_flash *spsn;
+ struct spi_flash *flash;
unsigned int i;
unsigned short jedec, ext_jedec;
return NULL;
}
- spsn = malloc(sizeof(struct spansion_spi_flash));
- if (!spsn) {
+ flash = malloc(sizeof(*flash));
+ if (!flash) {
debug("SF: Failed to allocate memory\n");
return NULL;
}
- spsn->params = params;
- spsn->flash.spi = spi;
- spsn->flash.name = params->name;
-
- spsn->flash.write = spansion_write;
- spsn->flash.erase = spansion_erase;
- spsn->flash.read = spansion_read_fast;
- spsn->flash.size = params->page_size * params->pages_per_sector
- * params->nr_sectors;
+ flash->spi = spi;
+ flash->name = params->name;
- debug("SF: Detected %s with page size %u, total %u bytes\n",
- params->name, params->page_size, spsn->flash.size);
+ flash->write = spi_flash_cmd_write_multi;
+ flash->erase = spi_flash_cmd_erase;
+ flash->read = spi_flash_cmd_read_fast;
+ flash->page_size = 256;
+ flash->sector_size = 256 * params->pages_per_sector;
+ flash->size = flash->sector_size * params->nr_sectors;
- return &spsn->flash;
+ return flash;
}
projects / karo-tx-uboot.git / blobdiff