b3860bfe77
Calling sata_scan() with a null pointer probably won't make much sense. Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Reviewed-by: Simon Glass <sjg@chromium.org>
124 lines
2.6 KiB
C
124 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2000-2005, DENX Software Engineering
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* Wolfgang Denk <wd@denx.de>
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* Copyright (C) Procsys. All rights reserved.
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* Mushtaq Khan <mushtaq_k@procsys.com>
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* <mushtaqk_921@yahoo.co.in>
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* Copyright (C) 2008 Freescale Semiconductor, Inc.
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* Dave Liu <daveliu@freescale.com>
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*/
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#include <common.h>
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#include <ahci.h>
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#include <dm.h>
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#include <command.h>
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#include <part.h>
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#include <sata.h>
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#include <dm/device-internal.h>
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#include <dm/uclass-internal.h>
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static int sata_curr_device = -1;
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int sata_remove(int devnum)
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{
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#ifdef CONFIG_AHCI
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struct udevice *dev;
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int rc;
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rc = uclass_find_device(UCLASS_AHCI, devnum, &dev);
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if (!rc && !dev)
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rc = uclass_find_first_device(UCLASS_AHCI, &dev);
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if (rc || !dev) {
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printf("Cannot find SATA device %d (err=%d)\n", devnum, rc);
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return CMD_RET_FAILURE;
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}
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rc = device_remove(dev, DM_REMOVE_NORMAL);
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if (rc) {
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printf("Cannot remove SATA device '%s' (err=%d)\n", dev->name,
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rc);
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return CMD_RET_FAILURE;
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}
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return 0;
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#else
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return sata_stop();
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#endif
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}
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int sata_probe(int devnum)
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{
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#ifdef CONFIG_AHCI
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struct udevice *dev;
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int rc;
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rc = uclass_get_device(UCLASS_AHCI, devnum, &dev);
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if (rc)
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rc = uclass_find_first_device(UCLASS_AHCI, &dev);
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if (rc) {
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printf("Cannot probe SATA device %d (err=%d)\n", devnum, rc);
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return CMD_RET_FAILURE;
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}
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if (!dev) {
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printf("No SATA device found!\n");
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return CMD_RET_FAILURE;
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}
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rc = sata_scan(dev);
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if (rc) {
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printf("Cannot scan SATA device %d (err=%d)\n", devnum, rc);
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return CMD_RET_FAILURE;
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}
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return 0;
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#else
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return sata_initialize() < 0 ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
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#endif
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}
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static int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
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{
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int rc = 0;
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if (argc >= 2) {
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int devnum = 0;
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if (argc == 3)
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devnum = (int)simple_strtoul(argv[2], NULL, 10);
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if (!strcmp(argv[1], "stop"))
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return sata_remove(devnum);
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if (!strcmp(argv[1], "init")) {
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if (sata_curr_device != -1) {
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rc = sata_remove(devnum);
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if (rc)
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return rc;
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}
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return sata_probe(devnum);
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}
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}
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/* If the user has not yet run `sata init`, do it now */
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if (sata_curr_device == -1) {
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rc = sata_probe(0);
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if (rc)
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return rc;
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sata_curr_device = 0;
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}
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return blk_common_cmd(argc, argv, IF_TYPE_SATA, &sata_curr_device);
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}
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U_BOOT_CMD(
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sata, 5, 1, do_sata,
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"SATA sub system",
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"init - init SATA sub system\n"
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"sata stop [dev] - disable SATA sub system or device\n"
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"sata info - show available SATA devices\n"
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"sata device [dev] - show or set current device\n"
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"sata part [dev] - print partition table\n"
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"sata read addr blk# cnt\n"
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"sata write addr blk# cnt"
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);
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