From 9723bbb46abb7b2ca24eead5114a3faa58060c20 Mon Sep 17 00:00:00 2001
From: Dirk Behme <dirk.behme@gmail.com>
Date: Wed, 16 Jan 2008 14:26:59 +0100
Subject: [PATCH] nand: Correct NAND erase percentage output
For NAND erase sizes smaller than one NAND erase block, erase
percentage output becomes grater than 100% e.g.
-- cut --
> nand info
Device 0: NAND 64MiB 1,8V 8-bit, sector size 16 KiB
> nand erase 0x100000 0x2000
NAND erase: device 0 offset 0x100000, size 0x2000
Erasing at 0x100000 -- 200% complete.
OK
>
-- cut --
Correct this and give user a warning that more is erased than specified:
-- cut --
> nand erase 0x100000 0x2000
NAND erase: device 0 offset 0x100000, size 0x2000
Warning: Erase size 0x00002000 smaller than one erase block 0x00004000
Erasing 0x00004000 instead
Erasing at 0x100000 -- 100% complete.
OK
>
-- cut --
Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
---
drivers/mtd/nand/nand_util.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/mtd/nand/nand_util.c b/drivers/mtd/nand/nand_util.c
index 6c5624a49a..c82f77b555 100644
--- a/drivers/mtd/nand/nand_util.c
+++ b/drivers/mtd/nand/nand_util.c
@@ -153,6 +153,13 @@ int nand_erase_opts(nand_info_t *meminfo, const nand_erase_options_t *opts)
priv_nand->bbt = NULL;
}
+ if (erase_length < meminfo->erasesize) {
+ printf("Warning: Erase size 0x%08x smaller than one " \
+ "erase block 0x%08x\n",erase_length, meminfo->erasesize);
+ printf(" Erasing 0x%08x instead\n", meminfo->erasesize);
+ erase_length = meminfo->erasesize;
+ }
+
for (;
erase.addr < opts->offset + erase_length;
erase.addr += meminfo->erasesize) {
--
2.39.5