xref: /rk3399_rockchip-uboot/common/spl/spl_mmc.c (revision 1ec264695f746dd033a14762344aefff0aa3e3b5)
1 /*
2  * (C) Copyright 2010
3  * Texas Instruments, <www.ti.com>
4  *
5  * Aneesh V <aneesh@ti.com>
6  *
7  * SPDX-License-Identifier:	GPL-2.0+
8  */
9 #include <common.h>
10 #include <spl.h>
11 #include <linux/compiler.h>
12 #include <asm/u-boot.h>
13 #include <mmc.h>
14 #include <image.h>
15 
16 DECLARE_GLOBAL_DATA_PTR;
17 
18 static int mmc_load_image_raw_sector(struct mmc *mmc, unsigned long sector)
19 {
20 	unsigned long count;
21 	u32 image_size_sectors;
22 	struct image_header *header;
23 
24 	header = (struct image_header *)(CONFIG_SYS_TEXT_BASE -
25 					 sizeof(struct image_header));
26 
27 	/* read image header to find the image size & load address */
28 	count = mmc->block_dev.block_read(0, sector, 1, header);
29 	if (count == 0)
30 		goto end;
31 
32 	if (image_get_magic(header) != IH_MAGIC)
33 		return -1;
34 
35 	spl_parse_image_header(header);
36 
37 	/* convert size to sectors - round up */
38 	image_size_sectors = (spl_image.size + mmc->read_bl_len - 1) /
39 			     mmc->read_bl_len;
40 
41 	/* Read the header too to avoid extra memcpy */
42 	count = mmc->block_dev.block_read(0, sector, image_size_sectors,
43 					  (void *) spl_image.load_addr);
44 
45 end:
46 	if (count == 0) {
47 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
48 		puts("spl: mmc block read error\n");
49 #endif
50 		return -1;
51 	}
52 
53 	return 0;
54 }
55 
56 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
57 static int mmc_load_image_raw_partition(struct mmc *mmc, int partition)
58 {
59 	disk_partition_t info;
60 	int err;
61 
62 	err = get_partition_info(&mmc->block_dev, partition, &info);
63 	if (err) {
64 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
65 		puts("spl: partition error\n");
66 #endif
67 		return -1;
68 	}
69 
70 	return mmc_load_image_raw_sector(mmc, info.start);
71 }
72 #endif
73 
74 #ifdef CONFIG_SPL_OS_BOOT
75 static int mmc_load_image_raw_os(struct mmc *mmc)
76 {
77 	unsigned long count;
78 
79 	count = mmc->block_dev.block_read(0,
80 		CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTOR,
81 		CONFIG_SYS_MMCSD_RAW_MODE_ARGS_SECTORS,
82 		(void *) CONFIG_SYS_SPL_ARGS_ADDR);
83 	if (count == 0) {
84 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
85 		puts("spl: mmc block read error\n");
86 #endif
87 		return -1;
88 	}
89 
90 	return mmc_load_image_raw_sector(mmc,
91 		CONFIG_SYS_MMCSD_RAW_MODE_KERNEL_SECTOR);
92 }
93 #endif
94 
95 void spl_mmc_load_image(void)
96 {
97 	struct mmc *mmc;
98 	u32 boot_mode;
99 	int err;
100 	__maybe_unused int part;
101 
102 	mmc_initialize(gd->bd);
103 
104 	/* We register only one device. So, the dev id is always 0 */
105 	mmc = find_mmc_device(0);
106 	if (!mmc) {
107 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
108 		puts("spl: mmc device not found\n");
109 #endif
110 		hang();
111 	}
112 
113 	err = mmc_init(mmc);
114 	if (err) {
115 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
116 		printf("spl: mmc init failed with error: %d\n", err);
117 #endif
118 		hang();
119 	}
120 
121 	boot_mode = spl_boot_mode();
122 	switch (boot_mode) {
123 	case MMCSD_MODE_RAW:
124 		debug("spl: mmc boot mode: raw\n");
125 
126 #ifdef CONFIG_SPL_OS_BOOT
127 		if (!spl_start_uboot()) {
128 			err = mmc_load_image_raw_os(mmc);
129 			if (!err)
130 				return;
131 		}
132 #endif
133 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
134 		err = mmc_load_image_raw_partition(mmc,
135 			CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
136 #else
137 		err = mmc_load_image_raw_sector(mmc,
138 			CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
139 #endif
140 		if (!err)
141 			return;
142 #if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
143 	case MMCSD_MODE_FS:
144 		debug("spl: mmc boot mode: fs\n");
145 
146 #ifdef CONFIG_SPL_FAT_SUPPORT
147 #ifdef CONFIG_SPL_OS_BOOT
148 		if (!spl_start_uboot()) {
149 			err = spl_load_image_fat_os(&mmc->block_dev,
150 				CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
151 			if (!err)
152 				return;
153 		}
154 #endif
155 		err = spl_load_image_fat(&mmc->block_dev,
156 					 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
157 					 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
158 		if (!err)
159 			return;
160 #endif
161 #ifdef CONFIG_SPL_EXT_SUPPORT
162 #ifdef CONFIG_SPL_OS_BOOT
163 		if (!spl_start_uboot()) {
164 			err = spl_load_image_ext_os(&mmc->block_dev,
165 				CONFIG_SYS_MMCSD_FS_BOOT_PARTITION);
166 			if (!err)
167 				return;
168 		}
169 #endif
170 		err = spl_load_image_ext(&mmc->block_dev,
171 					 CONFIG_SYS_MMCSD_FS_BOOT_PARTITION,
172 					 CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
173 		if (!err)
174 			return;
175 #endif
176 #endif
177 #ifdef CONFIG_SUPPORT_EMMC_BOOT
178 	case MMCSD_MODE_EMMCBOOT:
179 		/*
180 		 * We need to check what the partition is configured to.
181 		 * 1 and 2 match up to boot0 / boot1 and 7 is user data
182 		 * which is the first physical partition (0).
183 		 */
184 		part = (mmc->part_config >> 3) & PART_ACCESS_MASK;
185 
186 		if (part == 7)
187 			part = 0;
188 
189 		if (mmc_switch_part(0, part)) {
190 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
191 			puts("spl: mmc partition switch failed\n");
192 #endif
193 			hang();
194 		}
195 
196 #ifdef CONFIG_SPL_OS_BOOT
197 		if (!spl_start_uboot()) {
198 			err = mmc_load_image_raw_os(mmc);
199 			if (!err)
200 				return;
201 		}
202 #endif
203 #ifdef CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION
204 		err = mmc_load_image_raw_partition(mmc,
205 			CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_PARTITION);
206 #else
207 		err = mmc_load_image_raw_sector(mmc,
208 			CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR);
209 #endif
210 		if (!err)
211 			return;
212 #endif
213 	case MMCSD_MODE_UNDEFINED:
214 	default:
215 #ifdef CONFIG_SPL_LIBCOMMON_SUPPORT
216 		if (err)
217 			puts("spl: mmc: no boot mode left to try\n");
218 		else
219 			puts("spl: mmc: wrong boot mode\n");
220 #endif
221 		hang();
222 	}
223 }
224