Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=be8444bdf34f7ba21e2364ca296c68e81033e3b2
Commit: be8444bdf34f7ba21e2364ca296c68e81033e3b2
Parent: 195a253b6632e2b7e6319f2f67120e708646554e
Author: David Woodhouse <[EMAIL PROTECTED]>
AuthorDate: Tue Oct 31 12:36:04 2006 +0800
Committer: David Woodhouse <[EMAIL PROTECTED]>
CommitDate: Tue Oct 31 12:36:04 2006 +0800
[MTD] NAND: Add register debugging spew option to CAFÉ driver
Signed-off-by: David Woodhouse <[EMAIL PROTECTED]>
---
drivers/mtd/nand/cafe.c | 26 +++++++++++++-------------
1 files changed, 13 insertions(+), 13 deletions(-)
diff --git a/drivers/mtd/nand/cafe.c b/drivers/mtd/nand/cafe.c
index 175cf82..c5d03b0 100644
--- a/drivers/mtd/nand/cafe.c
+++ b/drivers/mtd/nand/cafe.c
@@ -72,6 +72,9 @@ module_param(skipbbt, int, 0644);
static int debug = 0;
module_param(debug, int, 0644);
+static int regdebug = 0;
+module_param(regdebug, int, 0644);
+
static int checkecc = 1;
module_param(checkecc, int, 0644);
@@ -228,12 +231,6 @@ static void cafe_nand_cmdfunc(struct mtd_info *mtd,
unsigned command,
cafe_writel(cafe, cafe->ctl2 | 0x100 | NAND_CMD_READSTART,
NAND_CTRL2);
do_command:
-#if 0
- /* http://dev.laptop.org/ticket/200
- ECC on read only works if we read precisely 0x80e bytes */
- if (cafe->datalen == 2112)
- cafe->datalen = 2062;
-#endif
cafe_dev_dbg(&cafe->pdev->dev, "dlen %x, ctl1 %x, ctl2 %x\n",
cafe->datalen, ctl1, cafe_readl(cafe, NAND_CTRL2));
@@ -254,13 +251,13 @@ static void cafe_nand_cmdfunc(struct mtd_info *mtd,
unsigned command,
}
cafe->datalen = 0;
-#if 0
- { int i;
- printk("About to write command %08x\n", ctl1);
- for (i=0; i< 0x5c; i+=4)
- printk("Register %x: %08x\n", i, readl(cafe->mmio + i));
+ if (unlikely(regdebug)) {
+ int i;
+ printk("About to write command %08x to register 0\n", ctl1);
+ for (i=4; i< 0x5c; i+=4)
+ printk("Register %x: %08x\n", i, readl(cafe->mmio + i));
}
-#endif
+
cafe_writel(cafe, ctl1, NAND_CTRL1);
/* Apply this short delay always to ensure that we do wait tWB in
* any case on any machine. */
@@ -388,7 +385,10 @@ static int cafe_nand_read_page(struct mtd_info *mtd,
struct nand_chip *chip,
}
if ((i = cafe_correct_ecc(buf, syn)) < 0) {
- dev_dbg(&cafe->pdev->dev, "Failed to correct ECC\n");
+ dev_dbg(&cafe->pdev->dev, "Failed to correct ECC at
%08x\n",
+ cafe_readl(cafe, NAND_ADDR2) * 2048);
+ for (i=0; i< 0x5c; i+=4)
+ printk("Register %x: %08x\n", i,
readl(cafe->mmio + i));
mtd->ecc_stats.failed++;
} else {
dev_dbg(&cafe->pdev->dev, "Corrected %d symbol
errors\n", i);
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
