f5a14af9c4
Add driver-model block-device support to the SATA implementation. This is just a dummy implementation for now, since the SATA low-level API uses numbered devices and that doesn't fit with driver model. Signed-off-by: Simon Glass <sjg@chromium.org>
116 lines
2.6 KiB
C
116 lines
2.6 KiB
C
/*
|
|
* 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>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <sata.h>
|
|
|
|
struct blk_desc sata_dev_desc[CONFIG_SYS_SATA_MAX_DEVICE];
|
|
|
|
#ifdef CONFIG_PARTITIONS
|
|
struct blk_desc *sata_get_dev(int dev)
|
|
{
|
|
return (dev < CONFIG_SYS_SATA_MAX_DEVICE) ? &sata_dev_desc[dev] : NULL;
|
|
}
|
|
#endif
|
|
|
|
#ifdef CONFIG_BLK
|
|
static unsigned long sata_bread(struct udevice *dev, lbaint_t start,
|
|
lbaint_t blkcnt, void *dst)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static unsigned long sata_bwrite(struct udevice *dev, lbaint_t start,
|
|
lbaint_t blkcnt, const void *buffer)
|
|
{
|
|
return -ENOSYS;
|
|
}
|
|
#else
|
|
static unsigned long sata_bread(struct blk_desc *block_dev, lbaint_t start,
|
|
lbaint_t blkcnt, void *dst)
|
|
{
|
|
return sata_read(block_dev->devnum, start, blkcnt, dst);
|
|
}
|
|
|
|
static unsigned long sata_bwrite(struct blk_desc *block_dev, lbaint_t start,
|
|
lbaint_t blkcnt, const void *buffer)
|
|
{
|
|
return sata_write(block_dev->devnum, start, blkcnt, buffer);
|
|
}
|
|
#endif
|
|
|
|
int __sata_initialize(void)
|
|
{
|
|
int rc;
|
|
int i;
|
|
|
|
for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++) {
|
|
memset(&sata_dev_desc[i], 0, sizeof(struct blk_desc));
|
|
sata_dev_desc[i].if_type = IF_TYPE_SATA;
|
|
sata_dev_desc[i].devnum = i;
|
|
sata_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
|
|
sata_dev_desc[i].type = DEV_TYPE_HARDDISK;
|
|
sata_dev_desc[i].lba = 0;
|
|
sata_dev_desc[i].blksz = 512;
|
|
sata_dev_desc[i].log2blksz = LOG2(sata_dev_desc[i].blksz);
|
|
#ifndef CONFIG_BLK
|
|
sata_dev_desc[i].block_read = sata_bread;
|
|
sata_dev_desc[i].block_write = sata_bwrite;
|
|
#endif
|
|
rc = init_sata(i);
|
|
if (!rc) {
|
|
rc = scan_sata(i);
|
|
if (!rc && sata_dev_desc[i].lba > 0 &&
|
|
sata_dev_desc[i].blksz > 0)
|
|
part_init(&sata_dev_desc[i]);
|
|
}
|
|
}
|
|
|
|
return rc;
|
|
}
|
|
int sata_initialize(void) __attribute__((weak, alias("__sata_initialize")));
|
|
|
|
__weak int __sata_stop(void)
|
|
{
|
|
int i, err = 0;
|
|
|
|
for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++)
|
|
err |= reset_sata(i);
|
|
|
|
if (err)
|
|
printf("Could not reset some SATA devices\n");
|
|
|
|
return err;
|
|
}
|
|
int sata_stop(void) __attribute__((weak, alias("__sata_stop")));
|
|
|
|
#ifdef CONFIG_BLK
|
|
static const struct blk_ops sata_blk_ops = {
|
|
.read = sata_bread,
|
|
.write = sata_bwrite,
|
|
};
|
|
|
|
U_BOOT_DRIVER(sata_blk) = {
|
|
.name = "sata_blk",
|
|
.id = UCLASS_BLK,
|
|
.ops = &sata_blk_ops,
|
|
};
|
|
#else
|
|
U_BOOT_LEGACY_BLK(sata) = {
|
|
.if_typename = "sata",
|
|
.if_type = IF_TYPE_SATA,
|
|
.max_devs = CONFIG_SYS_SATA_MAX_DEVICE,
|
|
.desc = sata_dev_desc,
|
|
};
|
|
#endif
|