diff options
Diffstat (limited to 'drivers/ata/sata.c')
-rw-r--r-- | drivers/ata/sata.c | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/drivers/ata/sata.c b/drivers/ata/sata.c new file mode 100644 index 0000000000..42ff5c7755 --- /dev/null +++ b/drivers/ata/sata.c @@ -0,0 +1,117 @@ +/* + * 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, ret = -1; + 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]); + ret = i; + } + } + } + + return ret; +} +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 |