GitHub-Mirror/u-boot
2
0
Fork 0
mirror of https://github.com/Fishwaldo/u-boot.git synced 2025-03-27 17:41:34 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

cmd_mmc: add support for device command for selecting mmc device

Browse source 
This patch improves device command for selecting mmc device

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This commit is contained in:
Minkyu Kang 2009-03-30 14:55:51 +09:00 • committed by Wolfgang Denk
parent 9abc9ef8fb
commit 869f6bf4de
1 changed files with 56 additions and 5 deletions

61
common/cmd_mmc.c
View file

@ -26,19 +26,70 @@
#include <mmc.h>
#ifndef CONFIG_GENERIC_MMC
int curr_device = -1;
int do_mmc (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
if (mmc_legacy_init (1) != 0) {
printf ("No MMC card found\n");
int dev;
if (argc < 2) {
cmd_usage(cmdtp);
return 1;
}
if (strcmp(argv[1], "init") == 0) {
if (argc == 2) {
if (curr_device < 0)
dev = 1;
else
dev = curr_device;
} else if (argc == 3) {
dev = (int)simple_strtoul(argv[2], NULL, 10);
} else {
cmd_usage(cmdtp);
return 1;
}
if (mmc_legacy_init(dev) != 0) {
puts("No MMC card found\n");
return 1;
}
curr_device = dev;
printf("mmc%d is available\n", curr_device);
} else if (strcmp(argv[1], "device") == 0) {
if (argc == 2) {
if (curr_device < 0) {
puts("No MMC device available\n");
return 1;
}
} else if (argc == 3) {
dev = (int)simple_strtoul(argv[2], NULL, 10);
#ifdef CONFIG_SYS_MMC_SET_DEV
if (mmc_set_dev(dev) != 0)
return 1;
#endif
curr_device = dev;
} else {
cmd_usage(cmdtp);
return 1;
}
printf("mmc%d is current device\n", curr_device);
} else {
cmd_usage(cmdtp);
return 1;
}
return 0;
}
U_BOOT_CMD(
mmcinit, 1, 0, do_mmc,
"init mmc card",
NULL
mmc, 3, 1, do_mmc,
"MMC sub-system",
"init [dev] - init MMC sub system\n"
"mmc device [dev] - show or set current device\n"
);
#else /* !CONFIG_GENERIC_MMC */