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"Das U-Boot" Source Tree
1// SPDX-License-Identifier: GPL-2.0+
2/*
3 * (C) Copyright 2000-2011
4 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 */
6
7/*
8 * IDE support
9 */
10
11#include <blk.h>
12#include <dm.h>
13#include <config.h>
14#include <watchdog.h>
15#include <command.h>
16#include <image.h>
17#include <asm/byteorder.h>
18#include <asm/io.h>
19#include <dm/device-internal.h>
20#include <dm/uclass-internal.h>
21
22#include <ide.h>
23#include <ata.h>
24
25#ifdef CONFIG_LED_STATUS
26# include <status_led.h>
27#endif
28
29/* Current I/O Device */
30static int curr_device;
31
32int do_ide(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
33{
34 if (argc == 2) {
35 if (strncmp(argv[1], "res", 3) == 0) {
36 struct udevice *dev;
37 int ret;
38
39 puts("\nReset IDE: ");
40 ret = uclass_find_first_device(UCLASS_IDE, &dev);
41 ret = device_remove(dev, DM_REMOVE_NORMAL);
42 if (!ret)
43 ret = device_chld_unbind(dev, NULL);
44 if (ret) {
45 printf("Cannot remove IDE (err=%dE)\n", ret);
46 return CMD_RET_FAILURE;
47 }
48
49 ret = uclass_first_device_err(UCLASS_IDE, &dev);
50 if (ret) {
51 printf("Init failed (err=%dE)\n", ret);
52 return CMD_RET_FAILURE;
53 }
54
55 return 0;
56 }
57 }
58
59 return blk_common_cmd(argc, argv, UCLASS_IDE, &curr_device);
60}
61
62int do_diskboot(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
63{
64 return common_diskboot(cmdtp, "ide", argc, argv);
65}
66
67U_BOOT_CMD(ide, 5, 1, do_ide,
68 "IDE sub-system",
69 "reset - reset IDE controller\n"
70 "ide info - show available IDE devices\n"
71 "ide device [dev] - show or set current device\n"
72 "ide part [dev] - print partition table of one or all IDE devices\n"
73 "ide read addr blk# cnt\n"
74 "ide write addr blk# cnt - read/write `cnt'"
75 " blocks starting at block `blk#'\n"
76 " to/from memory address `addr'");
77
78U_BOOT_CMD(diskboot, 3, 1, do_diskboot,
79 "boot from IDE device", "loadAddr dev:part");