mtd: nand: Allow caller to pass alternative ID table to nand_scan_ident()
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linux-mtd at lists.infradead.org
Fri Feb 26 13:59:03 EST 2010
Gitweb: http://git.infradead.org/?p=mtd-2.6.git;a=commit;h=5e81e88a4c140586d9212999cea683bcd66a15c6
Commit: 5e81e88a4c140586d9212999cea683bcd66a15c6
Parent: 9fc51a37a8da84618df7584cad67c078317f6720
Author: David Woodhouse <David.Woodhouse at intel.com>
AuthorDate: Fri Feb 26 18:32:56 2010 +0000
Committer: David Woodhouse <David.Woodhouse at intel.com>
CommitDate: Fri Feb 26 18:32:56 2010 +0000
mtd: nand: Allow caller to pass alternative ID table to nand_scan_ident()
Signed-off-by: David Woodhouse <David.Woodhouse at intel.com>
---
drivers/mtd/nand/atmel_nand.c | 2 +-
drivers/mtd/nand/bcm_umi_nand.c | 2 +-
drivers/mtd/nand/cafe_nand.c | 2 +-
drivers/mtd/nand/davinci_nand.c | 2 +-
drivers/mtd/nand/fsl_elbc_nand.c | 2 +-
drivers/mtd/nand/mxc_nand.c | 2 +-
drivers/mtd/nand/nand_base.c | 29 +++++++++++++++--------------
drivers/mtd/nand/s3c2410.c | 3 ++-
drivers/mtd/nand/sh_flctl.c | 2 +-
drivers/mtd/nand/sm_common.c | 2 +-
drivers/mtd/nand/socrates_nand.c | 2 +-
drivers/mtd/nand/txx9ndfmc.c | 2 +-
include/linux/mtd/nand.h | 4 +++-
13 files changed, 30 insertions(+), 26 deletions(-)
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 524e6c9..04d3088 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -474,7 +474,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
}
/* first scan to find the device and get the page size */
- if (nand_scan_ident(mtd, 1)) {
+ if (nand_scan_ident(mtd, 1, NULL)) {
res = -ENXIO;
goto err_scan_ident;
}
diff --git a/drivers/mtd/nand/bcm_umi_nand.c b/drivers/mtd/nand/bcm_umi_nand.c
index 087bcd7..5ff90b7 100644
--- a/drivers/mtd/nand/bcm_umi_nand.c
+++ b/drivers/mtd/nand/bcm_umi_nand.c
@@ -446,7 +446,7 @@ static int __devinit bcm_umi_nand_probe(struct platform_device *pdev)
* layout we'll be using.
*/
- err = nand_scan_ident(board_mtd, 1);
+ err = nand_scan_ident(board_mtd, 1, NULL);
if (err) {
printk(KERN_ERR "nand_scan failed: %d\n", err);
iounmap(bcm_umi_io_base);
diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c
index 67e2b33..01a6fe1 100644
--- a/drivers/mtd/nand/cafe_nand.c
+++ b/drivers/mtd/nand/cafe_nand.c
@@ -761,7 +761,7 @@ static int __devinit cafe_nand_probe(struct pci_dev *pdev,
cafe_readl(cafe, GLOBAL_CTRL), cafe_readl(cafe, GLOBAL_IRQ_MASK));
/* Scan to find existence of the device */
- if (nand_scan_ident(mtd, 2)) {
+ if (nand_scan_ident(mtd, 2, NULL)) {
err = -ENXIO;
goto out_irq;
}
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index e2eeaf1..45bb931 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -690,7 +690,7 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
spin_unlock_irq(&davinci_nand_lock);
/* Scan to find existence of the device(s) */
- ret = nand_scan_ident(&info->mtd, pdata->mask_chipsel ? 2 : 1);
+ ret = nand_scan_ident(&info->mtd, pdata->mask_chipsel ? 2 : 1, NULL);
if (ret < 0) {
dev_dbg(&pdev->dev, "no NAND chip(s) found\n");
goto err_scan;
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index 1b8328f..3f38fb8 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -891,7 +891,7 @@ static int __devinit fsl_elbc_chip_probe(struct fsl_elbc_ctrl *ctrl,
if (ret)
goto err;
- ret = nand_scan_ident(&priv->mtd, 1);
+ ret = nand_scan_ident(&priv->mtd, 1, NULL);
if (ret)
goto err;
diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c
index 06cc378..474a09e 100644
--- a/drivers/mtd/nand/mxc_nand.c
+++ b/drivers/mtd/nand/mxc_nand.c
@@ -819,7 +819,7 @@ static int __init mxcnd_probe(struct platform_device *pdev)
}
/* first scan to find the device and get the page size */
- if (nand_scan_ident(mtd, 1)) {
+ if (nand_scan_ident(mtd, 1, NULL)) {
err = -ENXIO;
goto escan;
}
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index ba29a29..1c48236 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -2766,10 +2766,10 @@ static void nand_set_defaults(struct nand_chip *chip, int busw)
*/
static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
struct nand_chip *chip,
- int busw, int *maf_id)
+ int busw, int *maf_id,
+ struct nand_flash_dev *type)
{
- struct nand_flash_dev *type = NULL;
- int i, dev_id, maf_idx;
+ int dev_id, maf_idx;
int tmp_id, tmp_manf;
/* Select the device */
@@ -2808,15 +2808,14 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
return ERR_PTR(-ENODEV);
}
- /* Lookup the flash id */
- for (i = 0; nand_flash_ids[i].name != NULL; i++) {
- if (dev_id == nand_flash_ids[i].id) {
- type = &nand_flash_ids[i];
- break;
- }
- }
-
if (!type)
+ type = nand_flash_ids;
+
+ for (; type->name != NULL; type++)
+ if (dev_id == type->id)
+ break;
+
+ if (!type->name)
return ERR_PTR(-ENODEV);
if (!mtd->name)
@@ -2926,13 +2925,15 @@ static struct nand_flash_dev *nand_get_flash_type(struct mtd_info *mtd,
* nand_scan_ident - [NAND Interface] Scan for the NAND device
* @mtd: MTD device structure
* @maxchips: Number of chips to scan for
+ * @table: Alternative NAND ID table
*
* This is the first phase of the normal nand_scan() function. It
* reads the flash ID and sets up MTD fields accordingly.
*
* The mtd->owner field must be set to the module of the caller.
*/
-int nand_scan_ident(struct mtd_info *mtd, int maxchips)
+int nand_scan_ident(struct mtd_info *mtd, int maxchips,
+ struct nand_flash_dev *table)
{
int i, busw, nand_maf_id;
struct nand_chip *chip = mtd->priv;
@@ -2944,7 +2945,7 @@ int nand_scan_ident(struct mtd_info *mtd, int maxchips)
nand_set_defaults(chip, busw);
/* Read the flash type */
- type = nand_get_flash_type(mtd, chip, busw, &nand_maf_id);
+ type = nand_get_flash_type(mtd, chip, busw, &nand_maf_id, table);
if (IS_ERR(type)) {
if (!(chip->options & NAND_SCAN_SILENT_NODEV))
@@ -3235,7 +3236,7 @@ int nand_scan(struct mtd_info *mtd, int maxchips)
BUG();
}
- ret = nand_scan_ident(mtd, maxchips);
+ ret = nand_scan_ident(mtd, maxchips, NULL);
if (!ret)
ret = nand_scan_tail(mtd);
return ret;
diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c
index c41ad22..dc02dcd 100644
--- a/drivers/mtd/nand/s3c2410.c
+++ b/drivers/mtd/nand/s3c2410.c
@@ -1013,7 +1013,8 @@ static int s3c24xx_nand_probe(struct platform_device *pdev)
s3c2410_nand_init_chip(info, nmtd, sets);
nmtd->scan_res = nand_scan_ident(&nmtd->mtd,
- (sets) ? sets->nr_chips : 1);
+ (sets) ? sets->nr_chips : 1,
+ NULL);
if (nmtd->scan_res == 0) {
s3c2410_nand_update_chip(info, nmtd);
diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c
index 4260ab7..dbc09a8 100644
--- a/drivers/mtd/nand/sh_flctl.c
+++ b/drivers/mtd/nand/sh_flctl.c
@@ -825,7 +825,7 @@ static int __init flctl_probe(struct platform_device *pdev)
nand->select_chip = flctl_select_chip;
nand->cmdfunc = flctl_cmdfunc;
- ret = nand_scan_ident(flctl_mtd, 1);
+ ret = nand_scan_ident(flctl_mtd, 1, NULL);
if (ret)
goto err;
diff --git a/drivers/mtd/nand/sm_common.c b/drivers/mtd/nand/sm_common.c
index 07b6f72..f52bb39 100644
--- a/drivers/mtd/nand/sm_common.c
+++ b/drivers/mtd/nand/sm_common.c
@@ -75,7 +75,7 @@ int sm_register_device(struct mtd_info *mtd)
chip->options |= NAND_SKIP_BBTSCAN | NAND_SMARTMEDIA;
/* Scan for card properties */
- ret = nand_scan_ident(mtd, 1);
+ ret = nand_scan_ident(mtd, 1, NULL);
if (ret)
return ret;
diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c
index 65748ea..b37cbde 100644
--- a/drivers/mtd/nand/socrates_nand.c
+++ b/drivers/mtd/nand/socrates_nand.c
@@ -220,7 +220,7 @@ static int __devinit socrates_nand_probe(struct of_device *ofdev,
dev_set_drvdata(&ofdev->dev, host);
/* first scan to find the device and get the page size */
- if (nand_scan_ident(mtd, 1)) {
+ if (nand_scan_ident(mtd, 1, NULL)) {
res = -ENXIO;
goto out;
}
diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c
index 863513c..054a41c 100644
--- a/drivers/mtd/nand/txx9ndfmc.c
+++ b/drivers/mtd/nand/txx9ndfmc.c
@@ -274,7 +274,7 @@ static int txx9ndfmc_nand_scan(struct mtd_info *mtd)
struct nand_chip *chip = mtd->priv;
int ret;
- ret = nand_scan_ident(mtd, 1);
+ ret = nand_scan_ident(mtd, 1, NULL);
if (!ret) {
if (mtd->writesize >= 512) {
chip->ecc.size = mtd->writesize;
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index f2d4a1a..d152bdf 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -25,11 +25,13 @@
#include <linux/mtd/bbm.h>
struct mtd_info;
+struct nand_flash_dev;
/* Scan and identify a NAND device */
extern int nand_scan (struct mtd_info *mtd, int max_chips);
/* Separate phases of nand_scan(), allowing board driver to intervene
* and override command or ECC setup according to flash type */
-extern int nand_scan_ident(struct mtd_info *mtd, int max_chips);
+extern int nand_scan_ident(struct mtd_info *mtd, int max_chips,
+ struct nand_flash_dev *table);
extern int nand_scan_tail(struct mtd_info *mtd);
/* Free resources held by the NAND device */
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