diff mbox

In the Denali NAND controller driver, use 8 bytes for READID command.

Message ID 1402681565-7826-1-git-send-email-grmoore@altera.com
State Superseded
Headers show

Commit Message

grmoore@altera.com June 13, 2014, 5:46 p.m. UTC 
The Denali NAND driver reads only 5 bytes of ID, but some Hynix and Samsung
have size parameters in the 6th byte.  As a result, the page and oob size
for a Hynix H27UAG8T2B were calculated incorrectly and the driver failed to
load.

The solution is to read 8 bytes of ID, as expected by the nand framework.

Signed-off-by: Graham Moore <grmoore@altera.com>
---
 drivers/mtd/nand/denali.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c
index 9f2012a..7276125 100644
--- a/drivers/mtd/nand/denali.c
+++ b/drivers/mtd/nand/denali.c
@@ -488,7 +488,7 @@  static uint16_t denali_nand_timing_set(struct denali_nand_info *denali)
 	addr = (uint32_t)MODE_11 | BANK(denali->flash_bank);
 	index_addr(denali, (uint32_t)addr | 0, 0x90);
 	index_addr(denali, (uint32_t)addr | 1, 0);
-	for (i = 0; i < 5; i++)
+	for (i = 0; i < 8; i++)
 		index_addr_read_data(denali, addr | 2, &id_bytes[i]);
 	maf_id = id_bytes[0];
 	device_id = id_bytes[1];
@@ -1276,7 +1276,7 @@  static void denali_cmdfunc(struct mtd_info *mtd, unsigned int cmd, int col,
 		addr = (uint32_t)MODE_11 | BANK(denali->flash_bank);
 		index_addr(denali, (uint32_t)addr | 0, 0x90);
 		index_addr(denali, (uint32_t)addr | 1, 0);
-		for (i = 0; i < 5; i++) {
+		for (i = 0; i < 8; i++) {
 			index_addr_read_data(denali,
 						(uint32_t)addr | 2,
 						&id);