u-boot/cmd/sata.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

128 lines
2.8 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2000-2005, DENX Software Engineering
* Wolfgang Denk <wd@denx.de>
* Copyright (C) Procsys. All rights reserved.
* Mushtaq Khan <mushtaq_k@procsys.com>
* <mushtaqk_921@yahoo.co.in>
* Copyright (C) 2008 Freescale Semiconductor, Inc.
* Dave Liu <daveliu@freescale.com>
*/
#include <common.h>
#include <ahci.h>
#include <dm.h>
#include <command.h>
#include <part.h>
#include <sata.h>
#include <dm/device-internal.h>
#include <dm/uclass-internal.h>
static int sata_curr_device = -1;
int sata_remove(int devnum)
{
#ifdef CONFIG_AHCI
struct udevice *dev;
int rc;
rc = uclass_find_device(UCLASS_AHCI, devnum, &dev);
if (!rc && !dev)
rc = uclass_find_first_device(UCLASS_AHCI, &dev);
if (rc || !dev) {
printf("Cannot find SATA device %d (err=%d)\n", devnum, rc);
return CMD_RET_FAILURE;
}
rc = device_remove(dev, DM_REMOVE_NORMAL);
if (rc) {
printf("Cannot remove SATA device '%s' (err=%d)\n", dev->name,
rc);
return CMD_RET_FAILURE;
}
return 0;
#else
return sata_stop();
#endif
}
int sata_probe(int devnum)
{
#ifdef CONFIG_AHCI
struct udevice *dev;
struct udevice *blk;
int rc;
rc = uclass_get_device(UCLASS_AHCI, devnum, &dev);
if (rc)
rc = uclass_find_first_device(UCLASS_AHCI, &dev);
if (rc) {
printf("Cannot probe SATA device %d (err=%d)\n", devnum, rc);
return CMD_RET_FAILURE;
}
rc = sata_scan(dev);
if (rc) {
printf("Cannot scan SATA device %d (err=%d)\n", devnum, rc);
return CMD_RET_FAILURE;
}
rc = blk_get_from_parent(dev, &blk);
if (!rc) {
struct blk_desc *desc = dev_get_uclass_platdata(blk);
if (desc->lba > 0 && desc->blksz > 0)
part_init(desc);
}
return 0;
#else
return sata_initialize() < 0 ? CMD_RET_FAILURE : CMD_RET_SUCCESS;
#endif
}
static int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
int rc = 0;
if (argc >= 2) {
int devnum = 0;
if (argc == 3)
devnum = (int)simple_strtoul(argv[2], NULL, 10);
if (!strcmp(argv[1], "stop"))
return sata_remove(devnum);
if (!strcmp(argv[1], "init")) {
if (sata_curr_device != -1) {
rc = sata_remove(devnum);
if (rc)
return rc;
}
return sata_probe(devnum);
}
}
/* If the user has not yet run `sata init`, do it now */
if (sata_curr_device == -1) {
rc = sata_probe(0);
if (rc < 0)
return CMD_RET_FAILURE;
sata_curr_device = 0;
}
return blk_common_cmd(argc, argv, IF_TYPE_SATA, &sata_curr_device);
}
U_BOOT_CMD(
sata, 5, 1, do_sata,
"SATA sub system",
"init - init SATA sub system\n"
"sata stop [dev] - disable SATA sub system or device\n"
"sata info - show available SATA devices\n"
"sata device [dev] - show or set current device\n"
"sata part [dev] - print partition table\n"
"sata read addr blk# cnt\n"
"sata write addr blk# cnt"
);