mirror of
https://github.com/AsahiLinux/u-boot
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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>
115 lines
2.6 KiB
C
115 lines
2.6 KiB
C
/*
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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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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <common.h>
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#include <dm.h>
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#include <sata.h>
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struct blk_desc sata_dev_desc[CONFIG_SYS_SATA_MAX_DEVICE];
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#ifdef CONFIG_PARTITIONS
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struct blk_desc *sata_get_dev(int dev)
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{
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return (dev < CONFIG_SYS_SATA_MAX_DEVICE) ? &sata_dev_desc[dev] : NULL;
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}
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#endif
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#ifdef CONFIG_BLK
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static unsigned long sata_bread(struct udevice *dev, lbaint_t start,
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lbaint_t blkcnt, void *dst)
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{
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return -ENOSYS;
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}
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static unsigned long sata_bwrite(struct udevice *dev, lbaint_t start,
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lbaint_t blkcnt, const void *buffer)
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{
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return -ENOSYS;
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}
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#else
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static unsigned long sata_bread(struct blk_desc *block_dev, lbaint_t start,
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lbaint_t blkcnt, void *dst)
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{
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return sata_read(block_dev->devnum, start, blkcnt, dst);
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}
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static unsigned long sata_bwrite(struct blk_desc *block_dev, lbaint_t start,
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lbaint_t blkcnt, const void *buffer)
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{
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return sata_write(block_dev->devnum, start, blkcnt, buffer);
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}
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#endif
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int __sata_initialize(void)
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{
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int rc;
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int i;
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for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++) {
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memset(&sata_dev_desc[i], 0, sizeof(struct blk_desc));
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sata_dev_desc[i].if_type = IF_TYPE_SATA;
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sata_dev_desc[i].devnum = i;
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sata_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
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sata_dev_desc[i].type = DEV_TYPE_HARDDISK;
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sata_dev_desc[i].lba = 0;
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sata_dev_desc[i].blksz = 512;
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sata_dev_desc[i].log2blksz = LOG2(sata_dev_desc[i].blksz);
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#ifndef CONFIG_BLK
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sata_dev_desc[i].block_read = sata_bread;
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sata_dev_desc[i].block_write = sata_bwrite;
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#endif
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rc = init_sata(i);
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if (!rc) {
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rc = scan_sata(i);
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if (!rc && sata_dev_desc[i].lba > 0 &&
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sata_dev_desc[i].blksz > 0)
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part_init(&sata_dev_desc[i]);
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}
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}
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return rc;
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}
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int sata_initialize(void) __attribute__((weak, alias("__sata_initialize")));
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__weak int __sata_stop(void)
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{
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int i, err = 0;
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for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++)
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err |= reset_sata(i);
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if (err)
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printf("Could not reset some SATA devices\n");
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return err;
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}
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int sata_stop(void) __attribute__((weak, alias("__sata_stop")));
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#ifdef CONFIG_BLK
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static const struct blk_ops sata_blk_ops = {
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.read = sata_bread,
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.write = sata_bwrite,
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};
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U_BOOT_DRIVER(sata_blk) = {
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.name = "sata_blk",
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.id = UCLASS_BLK,
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.ops = &sata_blk_ops,
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};
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#else
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U_BOOT_LEGACY_BLK(sata) = {
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.if_typename = "sata",
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.if_type = IF_TYPE_SATA,
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.max_devs = CONFIG_SYS_SATA_MAX_DEVICE,
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.desc = sata_dev_desc,
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};
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#endif
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