2 * Copyright 2014 Broadcom Corporation.
4 * SPDX-License-Identifier: GPL-2.0+
12 #include <sparse_format.h>
15 #ifndef CONFIG_FASTBOOT_GPT_NAME
16 #define CONFIG_FASTBOOT_GPT_NAME GPT_ENTRY_NAME
19 /* The 64 defined bytes plus the '\0' */
20 #define RESPONSE_LEN (64 + 1)
22 static char *response_str
;
24 void fastboot_fail(const char *s
)
26 strncpy(response_str
, "FAIL\0", 5);
27 strncat(response_str
, s
, RESPONSE_LEN
- 4 - 1);
30 void fastboot_okay(const char *s
)
32 strncpy(response_str
, "OKAY\0", 5);
33 strncat(response_str
, s
, RESPONSE_LEN
- 4 - 1);
36 static void write_raw_image(block_dev_desc_t
*dev_desc
, disk_partition_t
*info
,
37 const char *part_name
, void *buffer
,
38 unsigned int download_bytes
)
43 /* determine number of blocks to write */
44 blkcnt
= ((download_bytes
+ (info
->blksz
- 1)) & ~(info
->blksz
- 1));
45 blkcnt
= blkcnt
/ info
->blksz
;
47 if (blkcnt
> info
->size
) {
48 error("too large for partition: '%s'\n", part_name
);
49 fastboot_fail("too large for partition");
53 puts("Flashing Raw Image\n");
55 blks
= dev_desc
->block_write(dev_desc
->dev
, info
->start
, blkcnt
,
58 error("failed writing to device %d\n", dev_desc
->dev
);
59 fastboot_fail("failed writing to device");
63 printf("........ wrote " LBAFU
" bytes to '%s'\n", blkcnt
* info
->blksz
,
68 void fb_mmc_flash_write(const char *cmd
, void *download_buffer
,
69 unsigned int download_bytes
, char *response
)
71 block_dev_desc_t
*dev_desc
;
72 disk_partition_t info
;
74 /* initialize the response buffer */
75 response_str
= response
;
77 dev_desc
= get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV
);
78 if (!dev_desc
|| dev_desc
->type
== DEV_TYPE_UNKNOWN
) {
79 error("invalid mmc device\n");
80 fastboot_fail("invalid mmc device");
84 if (strcmp(cmd
, CONFIG_FASTBOOT_GPT_NAME
) == 0) {
85 printf("%s: updating MBR, Primary and Backup GPT(s)\n",
87 if (is_valid_gpt_buf(dev_desc
, download_buffer
)) {
88 printf("%s: invalid GPT - refusing to write to flash\n",
90 fastboot_fail("invalid GPT partition");
93 if (write_mbr_and_gpt_partitions(dev_desc
, download_buffer
)) {
94 printf("%s: writing GPT partitions failed\n", __func__
);
95 fastboot_fail("writing GPT partitions failed");
98 printf("........ success\n");
101 } else if (get_partition_info_efi_by_name(dev_desc
, cmd
, &info
)) {
102 error("cannot find partition: '%s'\n", cmd
);
103 fastboot_fail("cannot find partition");
107 if (is_sparse_image(download_buffer
))
108 write_sparse_image(dev_desc
, &info
, cmd
, download_buffer
,
111 write_raw_image(dev_desc
, &info
, cmd
, download_buffer
,
115 void fb_mmc_erase(const char *cmd
, char *response
)
118 block_dev_desc_t
*dev_desc
;
119 disk_partition_t info
;
120 lbaint_t blks
, blks_start
, blks_size
, grp_size
;
121 struct mmc
*mmc
= find_mmc_device(CONFIG_FASTBOOT_FLASH_MMC_DEV
);
124 error("invalid mmc device");
125 fastboot_fail("invalid mmc device");
129 /* initialize the response buffer */
130 response_str
= response
;
132 dev_desc
= get_dev("mmc", CONFIG_FASTBOOT_FLASH_MMC_DEV
);
133 if (!dev_desc
|| dev_desc
->type
== DEV_TYPE_UNKNOWN
) {
134 error("invalid mmc device");
135 fastboot_fail("invalid mmc device");
139 ret
= get_partition_info_efi_by_name(dev_desc
, cmd
, &info
);
141 error("cannot find partition: '%s'", cmd
);
142 fastboot_fail("cannot find partition");
146 /* Align blocks to erase group size to avoid erasing other partitions */
147 grp_size
= mmc
->erase_grp_size
;
148 blks_start
= (info
.start
+ grp_size
- 1) & ~(grp_size
- 1);
149 if (info
.size
>= grp_size
)
150 blks_size
= (info
.size
- (blks_start
- info
.start
)) &
155 printf("Erasing blocks " LBAFU
" to " LBAFU
" due to alignment\n",
156 blks_start
, blks_start
+ blks_size
);
158 blks
= dev_desc
->block_erase(dev_desc
->dev
, blks_start
, blks_size
);
159 if (blks
!= blks_size
) {
160 error("failed erasing from device %d", dev_desc
->dev
);
161 fastboot_fail("failed erasing from device");
165 printf("........ erased " LBAFU
" bytes from '%s'\n",
166 blks_size
* info
.blksz
, cmd
);