diff options
Diffstat (limited to 'drivers/mtd')
| -rw-r--r-- | drivers/mtd/nand/denali.c | 102 |
1 files changed, 53 insertions, 49 deletions
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index 3ce11cc6972..52278d839d0 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -119,7 +119,7 @@ static const uint32_t reset_complete[4] = {INTR_STATUS0__RST_COMP, INTR_STATUS3__RST_COMP}; /* specifies the debug level of the driver */ -static int nand_debug_level = 0; +static int nand_debug_level; /* forward declarations */ static void clear_interrupts(struct denali_nand_info *denali); @@ -991,7 +991,7 @@ static void denali_irq_enable(struct denali_nand_info *denali, */ static inline uint32_t denali_irq_detected(struct denali_nand_info *denali) { - return (read_interrupt_status(denali) & DENALI_IRQ_ALL); + return read_interrupt_status(denali) & DENALI_IRQ_ALL; } /* Interrupts are cleared by writing a 1 to the appropriate status bit */ @@ -1172,9 +1172,12 @@ static int denali_send_pipeline_cmd(struct denali_nand_info *denali, uint32_t addr = 0x0, cmd = 0x0, page_count = 1, irq_status = 0, irq_mask = 0; - if (op == DENALI_READ) irq_mask = INTR_STATUS0__LOAD_COMP; - else if (op == DENALI_WRITE) irq_mask = 0; - else BUG(); + if (op == DENALI_READ) + irq_mask = INTR_STATUS0__LOAD_COMP; + else if (op == DENALI_WRITE) + irq_mask = 0; + else + BUG(); setup_ecc_for_xfer(denali, ecc_en, transfer_spare); @@ -1448,7 +1451,8 @@ static void denali_enable_dma(struct denali_nand_info *denali, bool en) { uint32_t reg_val = 0x0; - if (en) reg_val = DMA_ENABLE__FLAG; + if (en) + reg_val = DMA_ENABLE__FLAG; denali_write32(reg_val, denali->flash_reg + DMA_ENABLE); ioread32(denali->flash_reg + DMA_ENABLE); @@ -1721,47 +1725,47 @@ static void denali_cmdfunc(struct mtd_info *mtd, unsigned int cmd, int col, printk(KERN_INFO "cmdfunc: 0x%x %d %d\n", cmd, col, page); #endif switch (cmd) { - case NAND_CMD_PAGEPROG: - break; - case NAND_CMD_STATUS: - read_status(denali); - break; - case NAND_CMD_READID: - reset_buf(denali); - if (denali->flash_bank < denali->total_used_banks) { - /* write manufacturer information into nand - buffer for NAND subsystem to fetch. - */ - write_byte_to_buf(denali, - denali->dev_info.wDeviceMaker); - write_byte_to_buf(denali, - denali->dev_info.wDeviceID); - write_byte_to_buf(denali, - denali->dev_info.bDeviceParam0); - write_byte_to_buf(denali, - denali->dev_info.bDeviceParam1); - write_byte_to_buf(denali, - denali->dev_info.bDeviceParam2); - } else { - int i; - for (i = 0; i < 5; i++) - write_byte_to_buf(denali, 0xff); - } - break; - case NAND_CMD_READ0: - case NAND_CMD_SEQIN: - denali->page = page; - break; - case NAND_CMD_RESET: - reset_bank(denali); - break; - case NAND_CMD_READOOB: - /* TODO: Read OOB data */ - break; - default: - printk(KERN_ERR ": unsupported command" - " received 0x%x\n", cmd); - break; + case NAND_CMD_PAGEPROG: + break; + case NAND_CMD_STATUS: + read_status(denali); + break; + case NAND_CMD_READID: + reset_buf(denali); + if (denali->flash_bank < denali->total_used_banks) { + /* write manufacturer information into nand + buffer for NAND subsystem to fetch. + */ + write_byte_to_buf(denali, + denali->dev_info.wDeviceMaker); + write_byte_to_buf(denali, + denali->dev_info.wDeviceID); + write_byte_to_buf(denali, + denali->dev_info.bDeviceParam0); + write_byte_to_buf(denali, + denali->dev_info.bDeviceParam1); + write_byte_to_buf(denali, + denali->dev_info.bDeviceParam2); + } else { + int i; + for (i = 0; i < 5; i++) + write_byte_to_buf(denali, 0xff); + } + break; + case NAND_CMD_READ0: + case NAND_CMD_SEQIN: + denali->page = page; + break; + case NAND_CMD_RESET: + reset_bank(denali); + break; + case NAND_CMD_READOOB: + /* TODO: Read OOB data */ + break; + default: + printk(KERN_ERR ": unsupported command" + " received 0x%x\n", cmd); + break; } } @@ -1807,7 +1811,7 @@ static void denali_hw_init(struct denali_nand_info *denali) } /* ECC layout for SLC devices. Denali spec indicates SLC fixed at 4 bytes */ -#define ECC_BYTES_SLC 4 * (2048 / ECC_SECTOR_SIZE) +#define ECC_BYTES_SLC (4 * (2048 / ECC_SECTOR_SIZE)) static struct nand_ecclayout nand_oob_slc = { .eccbytes = 4, .eccpos = { 0, 1, 2, 3 }, /* not used */ @@ -1819,7 +1823,7 @@ static struct nand_ecclayout nand_oob_slc = { } }; -#define ECC_BYTES_MLC 14 * (2048 / ECC_SECTOR_SIZE) +#define ECC_BYTES_MLC (14 * (2048 / ECC_SECTOR_SIZE)) static struct nand_ecclayout nand_oob_mlc_14bit = { .eccbytes = 14, .eccpos = { 0, 1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13 }, /* not used */ |