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path: root/drivers/mtd/nand/denali.c
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Diffstat (limited to 'drivers/mtd/nand/denali.c')
-rw-r--r--drivers/mtd/nand/denali.c38
1 files changed, 14 insertions, 24 deletions
diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index a9e57d68629..0650aafa0dd 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -924,9 +924,10 @@ bool is_erased(uint8_t *buf, int len)
#define ECC_LAST_ERR(x) ((x) & ERR_CORRECTION_INFO__LAST_ERR_INFO)
static bool handle_ecc(struct denali_nand_info *denali, uint8_t *buf,
- uint32_t irq_status)
+ uint32_t irq_status, unsigned int *max_bitflips)
{
bool check_erased_page = false;
+ unsigned int bitflips = 0;
if (irq_status & INTR_STATUS__ECC_ERR) {
/* read the ECC errors. we'll ignore them for now */
@@ -965,6 +966,7 @@ static bool handle_ecc(struct denali_nand_info *denali, uint8_t *buf,
/* correct the ECC error */
buf[offset] ^= err_correction_value;
denali->mtd.ecc_stats.corrected++;
+ bitflips++;
}
} else {
/* if the error is not correctable, need to
@@ -984,6 +986,7 @@ static bool handle_ecc(struct denali_nand_info *denali, uint8_t *buf,
clear_interrupts(denali);
denali_set_intr_modes(denali, true);
}
+ *max_bitflips = bitflips;
return check_erased_page;
}
@@ -1084,7 +1087,7 @@ static void write_page(struct mtd_info *mtd, struct nand_chip *chip,
* by write_page above.
* */
static void denali_write_page(struct mtd_info *mtd, struct nand_chip *chip,
- const uint8_t *buf)
+ const uint8_t *buf, int oob_required)
{
/* for regular page writes, we let HW handle all the ECC
* data written to the device. */
@@ -1096,7 +1099,7 @@ static void denali_write_page(struct mtd_info *mtd, struct nand_chip *chip,
* write_page() function above.
*/
static void denali_write_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
- const uint8_t *buf)
+ const uint8_t *buf, int oob_required)
{
/* for raw page writes, we want to disable ECC and simply write
whatever data is in the buffer. */
@@ -1110,17 +1113,17 @@ static int denali_write_oob(struct mtd_info *mtd, struct nand_chip *chip,
}
static int denali_read_oob(struct mtd_info *mtd, struct nand_chip *chip,
- int page, int sndcmd)
+ int page)
{
read_oob_data(mtd, chip->oob_poi, page);
- return 0; /* notify NAND core to send command to
- NAND device. */
+ return 0;
}
static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
- uint8_t *buf, int page)
+ uint8_t *buf, int oob_required, int page)
{
+ unsigned int max_bitflips;
struct denali_nand_info *denali = mtd_to_denali(mtd);
dma_addr_t addr = denali->buf.dma_buf;
@@ -1153,7 +1156,7 @@ static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
memcpy(buf, denali->buf.buf, mtd->writesize);
- check_erased_page = handle_ecc(denali, buf, irq_status);
+ check_erased_page = handle_ecc(denali, buf, irq_status, &max_bitflips);
denali_enable_dma(denali, false);
if (check_erased_page) {
@@ -1167,11 +1170,11 @@ static int denali_read_page(struct mtd_info *mtd, struct nand_chip *chip,
denali->mtd.ecc_stats.failed++;
}
}
- return 0;
+ return max_bitflips;
}
static int denali_read_page_raw(struct mtd_info *mtd, struct nand_chip *chip,
- uint8_t *buf, int page)
+ uint8_t *buf, int oob_required, int page)
{
struct denali_nand_info *denali = mtd_to_denali(mtd);
@@ -1702,17 +1705,4 @@ static struct pci_driver denali_pci_driver = {
.remove = denali_pci_remove,
};
-static int __devinit denali_init(void)
-{
- printk(KERN_INFO "Spectra MTD driver\n");
- return pci_register_driver(&denali_pci_driver);
-}
-
-/* Free memory */
-static void __devexit denali_exit(void)
-{
- pci_unregister_driver(&denali_pci_driver);
-}
-
-module_init(denali_init);
-module_exit(denali_exit);
+module_pci_driver(denali_pci_driver);