1 // SPDX-License-Identifier: GPL-2.0 2 /* 3 * Copyright (c) 2019 Fuzhou Rockchip Electronics Co., Ltd 4 */ 5 6 #include <common.h> 7 #include <blk.h> 8 #include <dm.h> 9 #include <errno.h> 10 #include <image.h> 11 #include <malloc.h> 12 #include <mtd_blk.h> 13 #include <part.h> 14 #include <spl.h> 15 #include <spl_ab.h> 16 #include <spl_rkfw.h> 17 #include <asm/u-boot.h> 18 #include <dm/device-internal.h> 19 #include <linux/compiler.h> 20 #include <linux/mtd/mtd.h> 21 22 static int spl_mtd_get_device_index(u32 boot_device) 23 { 24 switch (boot_device) { 25 case BOOT_DEVICE_MTD_BLK_NAND: 26 return 0; 27 case BOOT_DEVICE_MTD_BLK_SPI_NAND: 28 return 1; 29 case BOOT_DEVICE_MTD_BLK_SPI_NOR: 30 return 2; 31 } 32 33 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 34 printf("spl: unsupported mtd boot device.\n"); 35 #endif 36 37 return -ENODEV; 38 } 39 40 struct blk_desc *find_mtd_device(int dev_num) 41 { 42 struct udevice *dev; 43 struct blk_desc *desc; 44 int ret; 45 46 ret = blk_find_device(IF_TYPE_MTD, dev_num, &dev); 47 48 if (ret) { 49 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) 50 printf("MTD Device %d not found\n", dev_num); 51 #endif 52 return NULL; 53 } 54 55 ret = device_probe(dev); 56 if (ret) { 57 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_LIBCOMMON_SUPPORT) 58 printf("MTD Device %d not found\n", dev_num); 59 #endif 60 return NULL; 61 } 62 63 desc = dev_get_uclass_platdata(dev); 64 if (!desc) 65 return NULL; 66 67 return desc; 68 } 69 70 static ulong mtd_spl_load_read(struct spl_load_info *load, ulong sector, 71 ulong count, void *buf) 72 { 73 struct blk_desc *desc = load->dev; 74 75 return blk_dread(desc, sector, count, buf); 76 } 77 78 #ifdef CONFIG_SPL_LOAD_RKFW 79 int spl_mtd_load_rkfw(struct spl_image_info *spl_image, struct blk_desc *desc) 80 { 81 struct spl_load_info load; 82 int ret; 83 84 load.dev = desc; 85 load.priv = NULL; 86 load.filename = NULL; 87 load.bl_len = desc->blksz; 88 load.read = mtd_spl_load_read; 89 90 ret = spl_load_rkfw_image(spl_image, &load); 91 if (ret) { 92 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT 93 puts("spl_mtd_load_rkfw: mtd block read error\n"); 94 #endif 95 return -1; 96 } 97 98 return 0; 99 } 100 #endif 101 102 int spl_mtd_load_image(struct spl_image_info *spl_image, 103 struct spl_boot_device *bootdev) 104 { 105 struct image_header *header; 106 struct blk_desc *desc; 107 int ret = -1; 108 109 desc = find_mtd_device(spl_mtd_get_device_index(bootdev->boot_device)); 110 if (!desc) 111 return -ENODEV; 112 #ifdef CONFIG_SPL_LIBDISK_SUPPORT 113 mtd_blk_map_partitions(desc); 114 #endif 115 if (IS_ENABLED(CONFIG_SPL_LOAD_FIT)) { 116 header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - 117 sizeof(struct image_header)); 118 ret = blk_dread(desc, CONFIG_SYS_NAND_U_BOOT_OFFS, 1, header); 119 if (ret != 1) 120 return -ENODEV; 121 122 #ifdef CONFIG_SPL_FIT_IMAGE_MULTIPLE 123 if (image_get_magic(header) == FDT_MAGIC || 124 CONFIG_SPL_FIT_IMAGE_MULTIPLE > 1) { 125 #else 126 if (image_get_magic(header) == FDT_MAGIC) { 127 #endif 128 struct spl_load_info load; 129 130 load.dev = desc; 131 load.priv = NULL; 132 load.filename = NULL; 133 load.bl_len = desc->blksz; 134 load.read = mtd_spl_load_read; 135 136 ret = spl_load_simple_fit(spl_image, &load, 137 CONFIG_SYS_NAND_U_BOOT_OFFS, 138 header); 139 } 140 } 141 142 if (!ret) 143 return 0; 144 145 if (IS_ENABLED(CONFIG_SPL_LOAD_RKFW)) { 146 #ifdef CONFIG_SPL_LOAD_RKFW 147 ret = spl_mtd_load_rkfw(spl_image, desc); 148 #endif 149 } 150 151 return ret; 152 } 153 154 SPL_LOAD_IMAGE_METHOD("MTD1", 0, BOOT_DEVICE_MTD_BLK_NAND, spl_mtd_load_image); 155 SPL_LOAD_IMAGE_METHOD("MTD2", 0, BOOT_DEVICE_MTD_BLK_SPI_NAND, spl_mtd_load_image); 156 SPL_LOAD_IMAGE_METHOD("MTD3", 0, BOOT_DEVICE_MTD_BLK_SPI_NOR, spl_mtd_load_image); 157