1 /* 2 * Copyright (C) 2000-2005, DENX Software Engineering 3 * Wolfgang Denk <wd@denx.de> 4 * Copyright (C) Procsys. All rights reserved. 5 * Mushtaq Khan <mushtaq_k@procsys.com> 6 * <mushtaqk_921@yahoo.co.in> 7 * Copyright (C) 2008 Freescale Semiconductor, Inc. 8 * Dave Liu <daveliu@freescale.com> 9 * 10 * SPDX-License-Identifier: GPL-2.0+ 11 */ 12 13 #include <common.h> 14 #include <dm.h> 15 #include <sata.h> 16 17 struct blk_desc sata_dev_desc[CONFIG_SYS_SATA_MAX_DEVICE]; 18 19 #ifdef CONFIG_PARTITIONS 20 struct blk_desc *sata_get_dev(int dev) 21 { 22 return (dev < CONFIG_SYS_SATA_MAX_DEVICE) ? &sata_dev_desc[dev] : NULL; 23 } 24 #endif 25 26 #ifdef CONFIG_BLK 27 static unsigned long sata_bread(struct udevice *dev, lbaint_t start, 28 lbaint_t blkcnt, void *dst) 29 { 30 return -ENOSYS; 31 } 32 33 static unsigned long sata_bwrite(struct udevice *dev, lbaint_t start, 34 lbaint_t blkcnt, const void *buffer) 35 { 36 return -ENOSYS; 37 } 38 #else 39 static unsigned long sata_bread(struct blk_desc *block_dev, lbaint_t start, 40 lbaint_t blkcnt, void *dst) 41 { 42 return sata_read(block_dev->devnum, start, blkcnt, dst); 43 } 44 45 static unsigned long sata_bwrite(struct blk_desc *block_dev, lbaint_t start, 46 lbaint_t blkcnt, const void *buffer) 47 { 48 return sata_write(block_dev->devnum, start, blkcnt, buffer); 49 } 50 #endif 51 52 int __sata_initialize(void) 53 { 54 int rc, ret = -1; 55 int i; 56 57 for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++) { 58 memset(&sata_dev_desc[i], 0, sizeof(struct blk_desc)); 59 sata_dev_desc[i].if_type = IF_TYPE_SATA; 60 sata_dev_desc[i].devnum = i; 61 sata_dev_desc[i].part_type = PART_TYPE_UNKNOWN; 62 sata_dev_desc[i].type = DEV_TYPE_HARDDISK; 63 sata_dev_desc[i].lba = 0; 64 sata_dev_desc[i].blksz = 512; 65 sata_dev_desc[i].log2blksz = LOG2(sata_dev_desc[i].blksz); 66 #ifndef CONFIG_BLK 67 sata_dev_desc[i].block_read = sata_bread; 68 sata_dev_desc[i].block_write = sata_bwrite; 69 #endif 70 rc = init_sata(i); 71 if (!rc) { 72 rc = scan_sata(i); 73 if (!rc && sata_dev_desc[i].lba > 0 && 74 sata_dev_desc[i].blksz > 0) { 75 part_init(&sata_dev_desc[i]); 76 ret = i; 77 } 78 } 79 } 80 81 return ret; 82 } 83 int sata_initialize(void) __attribute__((weak, alias("__sata_initialize"))); 84 85 __weak int __sata_stop(void) 86 { 87 int i, err = 0; 88 89 for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++) 90 err |= reset_sata(i); 91 92 if (err) 93 printf("Could not reset some SATA devices\n"); 94 95 return err; 96 } 97 int sata_stop(void) __attribute__((weak, alias("__sata_stop"))); 98 99 #ifdef CONFIG_BLK 100 static const struct blk_ops sata_blk_ops = { 101 .read = sata_bread, 102 .write = sata_bwrite, 103 }; 104 105 U_BOOT_DRIVER(sata_blk) = { 106 .name = "sata_blk", 107 .id = UCLASS_BLK, 108 .ops = &sata_blk_ops, 109 }; 110 #else 111 U_BOOT_LEGACY_BLK(sata) = { 112 .if_typename = "sata", 113 .if_type = IF_TYPE_SATA, 114 .max_devs = CONFIG_SYS_SATA_MAX_DEVICE, 115 .desc = sata_dev_desc, 116 }; 117 #endif 118