openwrtv3/target/linux/mvebu/patches-3.10/0138-mtd-nand-pxa3xx-Replace-host-page_size-by-mtd-writes.patch
Luka Perkov c9ae111a20 mvebu: backport mainline patches from kernel 3.13
This is a backport of the patches accepted to the Linux mainline related to
mvebu SoC (Armada XP and Armada 370) between Linux v3.12, and Linux v3.13.
This work mainly covers:

* Finishes work for sharing the pxa nand driver(drivers/mtd/nand/pxa3xx_nand.c)
  between the PXA family, and the Armada family.
* timer initialization update, and access function for the Armada family.
* Generic IRQ handling backporting.
* Some bug fixes.

Signed-off-by: Seif Mazareeb <seif.mazareeb@gmail.com>
CC: Luka Perkov <luka@openwrt.org>

SVN-Revision: 39566
2014-02-11 02:07:44 +00:00

72 lines
2.3 KiB
Diff

From ad40a597cbfeb2374c799ba6dad3a69f131511c8 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Thu, 7 Nov 2013 12:17:17 -0300
Subject: [PATCH 138/203] mtd: nand: pxa3xx: Replace host->page_size by
mtd->writesize
There's no need to privately store the device page size as it's
available in mtd structure field mtd->writesize.
Also, this removes the hardcoded page size value, leaving the
auto-detected value only.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Daniel Mack <zonque@gmail.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
---
drivers/mtd/nand/pxa3xx_nand.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -151,7 +151,6 @@ struct pxa3xx_nand_host {
void *info_data;
/* page size of attached chip */
- unsigned int page_size;
int use_ecc;
int cs;
@@ -614,12 +613,12 @@ static int prepare_command_pool(struct p
info->buf_start += mtd->writesize;
/* Second command setting for large pages */
- if (host->page_size >= PAGE_CHUNK_SIZE)
+ if (mtd->writesize >= PAGE_CHUNK_SIZE)
info->ndcb0 |= NDCB0_DBC | (NAND_CMD_READSTART << 8);
case NAND_CMD_SEQIN:
/* small page addr setting */
- if (unlikely(host->page_size < PAGE_CHUNK_SIZE)) {
+ if (unlikely(mtd->writesize < PAGE_CHUNK_SIZE)) {
info->ndcb1 = ((page_addr & 0xFFFFFF) << 8)
| (column & 0xFF);
@@ -895,7 +894,6 @@ static int pxa3xx_nand_config_flash(stru
}
/* calculate flash information */
- host->page_size = f->page_size;
host->read_id_bytes = (f->page_size == 2048) ? 4 : 2;
/* calculate addressing information */
@@ -934,11 +932,9 @@ static int pxa3xx_nand_detect_config(str
if (ndcr & NDCR_PAGE_SZ) {
/* Controller's FIFO size */
info->fifo_size = 2048;
- host->page_size = 2048;
host->read_id_bytes = 4;
} else {
info->fifo_size = 512;
- host->page_size = 512;
host->read_id_bytes = 2;
}
@@ -1106,7 +1102,7 @@ static int pxa3xx_nand_scan(struct mtd_i
def = pxa3xx_flash_ids;
KEEP_CONFIG:
chip->ecc.mode = NAND_ECC_HW;
- chip->ecc.size = host->page_size;
+ chip->ecc.size = info->fifo_size;
chip->ecc.strength = 1;
if (info->reg_ndcr & NDCR_DWIDTH_M)