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authorEnrico Scholz <enrico.scholz@sigma-chemnitz.de>2008-08-29 12:59:48 +0200
committerDavid Woodhouse <David.Woodhouse@intel.com>2008-09-01 21:31:34 +0100
commitc8ac3f818e1183eab8d08a41b01b6078c5df4b43 (patch)
tree3a3bbb4d0a1203226db38ae17b7c6cfb3e624e9f /drivers/mtd
parent43035338ad772b6a4097b2ac530b75390bee87c1 (diff)
downloadop-kernel-dev-c8ac3f818e1183eab8d08a41b01b6078c5df4b43.zip
op-kernel-dev-c8ac3f818e1183eab8d08a41b01b6078c5df4b43.tar.gz
[MTD] [NAND] pxa3xx_nand: allow to define flash types in the platform data
This patch adds 'flash' and 'num_flash' attributes to the platform data. There was added code in the driver to iterate across these attributes in the detect-flash routine. This is done similarly to the existing method which uses a 'builtin_flash_types' field. Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/nand/pxa3xx_nand.c18
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 203e8ef..1906aba 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -911,12 +911,26 @@ static int pxa3xx_nand_config_flash(struct pxa3xx_nand_info *info,
return 0;
}
-static int pxa3xx_nand_detect_flash(struct pxa3xx_nand_info *info)
+static int pxa3xx_nand_detect_flash(struct pxa3xx_nand_info *info,
+ const struct pxa3xx_nand_platform_data *pdata)
{
struct pxa3xx_nand_flash *f;
uint32_t id;
int i;
+ for (i = 0; i<pdata->num_flash; ++i) {
+ f = pdata->flash + i;
+
+ if (pxa3xx_nand_config_flash(info, f))
+ continue;
+
+ if (__readid(info, &id))
+ continue;
+
+ if (id == f->chip_id)
+ return 0;
+ }
+
for (i = 0; i < ARRAY_SIZE(builtin_flash_types); i++) {
f = builtin_flash_types[i];
@@ -1114,7 +1128,7 @@ static int pxa3xx_nand_probe(struct platform_device *pdev)
goto fail_free_buf;
}
- ret = pxa3xx_nand_detect_flash(info);
+ ret = pxa3xx_nand_detect_flash(info, pdata);
if (ret) {
dev_err(&pdev->dev, "failed to detect flash\n");
ret = -ENODEV;
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