[U-Boot] [PATCH 5/5] NAND: Add -y option to nand scrub command

Marek Vasut
2011-09-13T22:20:35Z

This allows the scrub command to scrub without asking the user if he really
wants to scrub the area. Useful in scripts.

Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Cc: Scott Wood <scottwood@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Detlev Zundel <dzu@denx.de>
---
common/cmd_nand.c | 34 +++++++++++++++++++---------------
1 files changed, 19 insertions(+), 15 deletions(-)

diff --git a/common/cmd_nand.c b/common/cmd_nand.c
index 5b7e83d..c2a5623 100644
--- a/common/cmd_nand.c
+++ b/common/cmd_nand.c
@@ -500,12 +500,23 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
nand_erase_options_t opts;
/* "clean" at index 2 means request to write cleanmarker */
int clean = argc > 2 && !strcmp("clean", argv[2]);
- int o = clean ? 3 : 2;
+ int scrub_yes = argc > 2 && !strcmp("-y", argv[2]);
+ int o = (clean || scrub_yes) ? 3 : 2;
int scrub = !strncmp(cmd, "scrub", 5);
int part = 0;
int chip = 0;
int spread = 0;
int args = 2;
+ const char *scrub_warn =
+ "Warning: "
+ "scrub option will erase all factory set bad blocks!\n"
+ " "
+ "There is no reliable way to recover them.\n"
+ " "
+ "Use this command only for testing purposes if you\n"
+ " "
+ "are sure of what you are doing!\n"
+ "\nReally scrub this NAND flash? <y/N>\n";

if (cmd[5] != 0) {
if (!strcmp(&cmd[5], ".spread")) {
@@ -544,19 +555,12 @@ int do_nand(cmd_tbl_t * cmdtp, int flag, int argc, char * const argv[])
opts.spread = spread;

if (scrub) {
- puts("Warning: "
- "scrub option will erase all factory set "
- "bad blocks!\n"
- " "
- "There is no reliable way to recover them.\n"
- " "
- "Use this command only for testing purposes "
- "if you\n"
- " "
- "are sure of what you are doing!\n"
- "\nReally scrub this NAND flash? <y/N>\n");
-
- if (getc() == 'y') {
+ if (!scrub_yes)
+ puts(scrub_warn);
+
+ if (scrub_yes)
+ opts.scrub = 1;
+ else if (getc() == 'y') {
puts("y");
if (getc() == '\r')
opts.scrub = 1;
@@ -768,7 +772,7 @@ U_BOOT_CMD(
"nand erase.chip [clean] - erase entire chip'\n"
"nand bad - show bad blocks\n"
"nand dump[.oob] off - dump page\n"
- "nand scrub off size | scrub.part partition | scrub.chip\n"
+ "nand scrub [-y] off size | scrub.part partition | scrub.chip\n"
" really clean NAND erasing bad blocks (UNSAFE)\n"
"nand markbad off [...] - mark bad block(s) at offset (UNSAFE)\n"
"nand biterr off - make a bit error at offset (UNSAFE)"
--
1.7.5.4