mvebu: backport mainline patches from kernel 3.13
[openwrt.git] / target / linux / mvebu / patches-3.10 / 0144-mtd-nand-pxa3xx-Clear-cmd-buffer-3-NDCB3-on-command-.patch
1 From cb574fecefd9552e5c6c5105adab7b37b0feb712 Mon Sep 17 00:00:00 2001
2 From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
3 Date: Thu, 14 Nov 2013 18:25:30 -0300
4 Subject: [PATCH 144/203] mtd: nand: pxa3xx: Clear cmd buffer #3 (NDCB3) on
5  command start
6
7 Command buffer #3 is not properly cleared and it keeps the last
8 set value. Fix this by clearing when a command is setup.
9
10 Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
11 Tested-by: Daniel Mack <zonque@gmail.com>
12 Signed-off-by: Brian Norris <computersforpeace@gmail.com>
13 ---
14  drivers/mtd/nand/pxa3xx_nand.c | 2 +-
15  1 file changed, 1 insertion(+), 1 deletion(-)
16
17 --- a/drivers/mtd/nand/pxa3xx_nand.c
18 +++ b/drivers/mtd/nand/pxa3xx_nand.c
19 @@ -606,6 +606,7 @@ static int prepare_command_pool(struct p
20         info->use_ecc           = 0;
21         info->use_spare         = 1;
22         info->retcode           = ERR_NONE;
23 +       info->ndcb3             = 0;
24         if (info->cs != 0)
25                 info->ndcb0 = NDCB0_CSEL;
26         else
27 @@ -627,7 +628,6 @@ static int prepare_command_pool(struct p
28         default:
29                 info->ndcb1 = 0;
30                 info->ndcb2 = 0;
31 -               info->ndcb3 = 0;
32                 break;
33         }
34