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path: root/drivers/mtd/spi/macronix.c
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Diffstat (limited to 'drivers/mtd/spi/macronix.c')
-rw-r--r--drivers/mtd/spi/macronix.c98
1 files changed, 12 insertions, 86 deletions
diff --git a/drivers/mtd/spi/macronix.c b/drivers/mtd/spi/macronix.c
index ff66f2aa3..e6895620a 100644
--- a/drivers/mtd/spi/macronix.c
+++ b/drivers/mtd/spi/macronix.c
@@ -58,17 +58,6 @@ struct macronix_spi_flash_params {
const char *name;
};
-struct macronix_spi_flash {
- struct spi_flash flash;
- const struct macronix_spi_flash_params *params;
-};
-
-static inline struct macronix_spi_flash *to_macronix_spi_flash(struct spi_flash
- *flash)
-{
- return container_of(flash, struct macronix_spi_flash, flash);
-}
-
static const struct macronix_spi_flash_params macronix_spi_flash_table[] = {
{
.idcode = 0x2015,
@@ -112,69 +101,6 @@ static const struct macronix_spi_flash_params macronix_spi_flash_table[] = {
},
};
-static int macronix_write(struct spi_flash *flash,
- u32 offset, size_t len, const void *buf)
-{
- struct macronix_spi_flash *mcx = to_macronix_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 = mcx->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_MX25XX_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_MX25XX_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: Macronix Page Program failed\n");
- break;
- }
-
- ret = spi_flash_cmd_wait_ready(flash, SPI_FLASH_PROG_TIMEOUT);
- if (ret)
- break;
-
- page_addr++;
- byte_addr = 0;
- }
-
- debug("SF: Macronix: Successfully programmed %u bytes @ 0x%x\n",
- len, offset);
-
- spi_release_bus(flash->spi);
- return ret;
-}
-
static int macronix_erase(struct spi_flash *flash, u32 offset, size_t len)
{
return spi_flash_cmd_erase(flash, CMD_MX25XX_BE, offset, len);
@@ -183,7 +109,7 @@ static int macronix_erase(struct spi_flash *flash, u32 offset, size_t len)
struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode)
{
const struct macronix_spi_flash_params *params;
- struct macronix_spi_flash *mcx;
+ struct spi_flash *flash;
unsigned int i;
u16 id = idcode[2] | idcode[1] << 8;
@@ -198,22 +124,22 @@ struct spi_flash *spi_flash_probe_macronix(struct spi_slave *spi, u8 *idcode)
return NULL;
}
- mcx = malloc(sizeof(*mcx));
- if (!mcx) {
+ flash = malloc(sizeof(*flash));
+ if (!flash) {
debug("SF: Failed to allocate memory\n");
return NULL;
}
- mcx->params = params;
- mcx->flash.spi = spi;
- mcx->flash.name = params->name;
+ flash->spi = spi;
+ flash->name = params->name;
- mcx->flash.write = macronix_write;
- mcx->flash.erase = macronix_erase;
- mcx->flash.read = spi_flash_cmd_read_fast;
- mcx->flash.sector_size = params->page_size * params->pages_per_sector
+ flash->write = spi_flash_cmd_write_multi;
+ flash->erase = macronix_erase;
+ flash->read = spi_flash_cmd_read_fast;
+ flash->page_size = params->page_size;
+ flash->sector_size = params->page_size * params->pages_per_sector
* params->sectors_per_block;
- mcx->flash.size = mcx->flash.sector_size * params->nr_blocks;
+ flash->size = flash->sector_size * params->nr_blocks;
- return &mcx->flash;
+ return flash;
}