u-boot/cmd/ide.c
Bin Meng 584f316f11 cmd: ide: Make the first device the default one
At present the IDE device number is initialized to -1, which means
we cannot type "ide read" command before setting the device number
via "ide device #".

For convenience, let's set the first device as the default one.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
2017-09-10 12:27:43 -04:00

65 lines
1.4 KiB
C

/*
* (C) Copyright 2000-2011
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* SPDX-License-Identifier: GPL-2.0+
*/
/*
* IDE support
*/
#include <common.h>
#include <blk.h>
#include <config.h>
#include <watchdog.h>
#include <command.h>
#include <image.h>
#include <asm/byteorder.h>
#include <asm/io.h>
#if defined(CONFIG_IDE_PCMCIA)
# include <pcmcia.h>
#endif
#include <ide.h>
#include <ata.h>
#ifdef CONFIG_LED_STATUS
# include <status_led.h>
#endif
/* Current I/O Device */
static int curr_device;
int do_ide(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
if (argc == 2) {
if (strncmp(argv[1], "res", 3) == 0) {
puts("\nReset IDE: ");
ide_init();
return 0;
}
}
return blk_common_cmd(argc, argv, IF_TYPE_IDE, &curr_device);
}
int do_diskboot(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
{
return common_diskboot(cmdtp, "ide", argc, argv);
}
U_BOOT_CMD(ide, 5, 1, do_ide,
"IDE sub-system",
"reset - reset IDE controller\n"
"ide info - show available IDE devices\n"
"ide device [dev] - show or set current device\n"
"ide part [dev] - print partition table of one or all IDE devices\n"
"ide read addr blk# cnt\n"
"ide write addr blk# cnt - read/write `cnt'"
" blocks starting at block `blk#'\n"
" to/from memory address `addr'");
U_BOOT_CMD(diskboot, 3, 1, do_diskboot,
"boot from IDE device", "loadAddr dev:part");