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stm32mp: stm32prog: add MMC device

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Add support of MMC device (based on DFU_MMC backend)
for SD card and eMMC update.

Create a GPT partitioning on the device.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
This commit is contained in:
Patrick Delaunay 2020-03-18 09:24:51 +01:00
parent 6ee6839183
commit aff4c5dd82
5 changed files with 209 additions and 5 deletions
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3
arch/arm/mach-stm32mp/Kconfig
View file

@ -112,6 +112,9 @@ config CMD_STM32PROG
select DFU
select DFU_RAM
select DFU_VIRT
select PARTITION_TYPE_GUID
imply CMD_GPT if MMC
imply DFU_MMC if MMC
help
activate a specific command stm32prog for STM32MP soc family
witch update the device with the tools STM32CubeProgrammer,

204
arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c
View file

@ -7,6 +7,7 @@
#include <console.h>
#include <dfu.h>
#include <malloc.h>
#include <mmc.h>
#include <dm/uclass.h>
#include <linux/list.h>
#include <linux/list_sort.h>
@ -14,6 +15,9 @@
#include "stm32prog.h"
/* Primary GPT header size for 128 entries : 17kB = 34 LBA of 512B */
#define GPT_HEADER_SZ 34
#define OPT_SELECT BIT(0)
#define OPT_EMPTY BIT(1)
@ -22,6 +26,32 @@
#define ALT_BUF_LEN SZ_1K
#define ROOTFS_MMC0_UUID \
EFI_GUID(0xE91C4E10, 0x16E6, 0x4C0E, \
0xBD, 0x0E, 0x77, 0xBE, 0xCF, 0x4A, 0x35, 0x82)
#define ROOTFS_MMC1_UUID \
EFI_GUID(0x491F6117, 0x415D, 0x4F53, \
0x88, 0xC9, 0x6E, 0x0D, 0xE5, 0x4D, 0xEA, 0xC6)
#define ROOTFS_MMC2_UUID \
EFI_GUID(0xFD58F1C7, 0xBE0D, 0x4338, \
0x88, 0xE9, 0xAD, 0x8F, 0x05, 0x0A, 0xEB, 0x18)
/* RAW parttion (binary / bootloader) used Linux - reserved UUID */
#define LINUX_RESERVED_UUID "8DA63339-0007-60C0-C436-083AC8230908"
/*
* unique partition guid (uuid) for partition named "rootfs"
* on each MMC instance = SD Card or eMMC
* allow fixed kernel bootcmd: "rootf=PARTUID=e91c4e10-..."
*/
static const efi_guid_t uuid_mmc[3] = {
ROOTFS_MMC0_UUID,
ROOTFS_MMC1_UUID,
ROOTFS_MMC2_UUID
};
DECLARE_GLOBAL_DATA_PTR;
/* order of column in flash layout file */
@ -200,6 +230,9 @@ static int parse_ip(struct stm32prog_data *data,
part->dev_id = 0;
if (!strcmp(p, "none")) {
part->target = STM32PROG_NONE;
} else if (!strncmp(p, "mmc", 3)) {
part->target = STM32PROG_MMC;
len = 3;
} else {
result = -EINVAL;
}
@ -424,16 +457,50 @@ static int __init part_cmp(void *priv, struct list_head *a, struct list_head *b)
static int init_device(struct stm32prog_data *data,
struct stm32prog_dev_t *dev)
{
struct mmc *mmc = NULL;
struct blk_desc *block_dev = NULL;
int part_id;
u64 first_addr = 0, last_addr = 0;
struct stm32prog_part_t *part, *next_part;
switch (dev->target) {
#ifdef CONFIG_MMC
case STM32PROG_MMC:
mmc = find_mmc_device(dev->dev_id);
if (mmc_init(mmc)) {
stm32prog_err("mmc device %d not found", dev->dev_id);
return -ENODEV;
}
block_dev = mmc_get_blk_desc(mmc);
if (!block_dev) {
stm32prog_err("mmc device %d not probed", dev->dev_id);
return -ENODEV;
}
dev->erase_size = mmc->erase_grp_size * block_dev->blksz;
dev->mmc = mmc;
/* reserve a full erase group for each GTP headers */
if (mmc->erase_grp_size > GPT_HEADER_SZ) {
first_addr = dev->erase_size;
last_addr = (u64)(block_dev->lba -
mmc->erase_grp_size) *
block_dev->blksz;
} else {
first_addr = (u64)GPT_HEADER_SZ * block_dev->blksz;
last_addr = (u64)(block_dev->lba - GPT_HEADER_SZ - 1) *
block_dev->blksz;
}
pr_debug("MMC %d: lba=%ld blksz=%ld\n", dev->dev_id,
block_dev->lba, block_dev->blksz);
pr_debug(" available address = 0x%llx..0x%llx\n",
first_addr, last_addr);
break;
#endif
default:
stm32prog_err("unknown device type = %d", dev->target);
return -ENODEV;
}
pr_debug(" erase size = 0x%x\n", dev->erase_size);
/* order partition list in offset order */
list_sort(NULL, &dev->part_list, &part_cmp);
@ -491,6 +558,12 @@ static int init_device(struct stm32prog_data *data,
return -EINVAL;
}
if ((part->addr & ((u64)part->dev->erase_size - 1)) != 0) {
stm32prog_err("%s (0x%x): not aligned address : 0x%llx on erase size 0x%x",
part->name, part->id, part->addr,
part->dev->erase_size);
return -EINVAL;
}
pr_debug("%02d : %1d %02x %14s %02d %02d.%02d %08llx %08llx",
part->part_id, part->option, part->id, part->name,
part->part_type, part->target,
@ -559,6 +632,118 @@ static int treat_partition_list(struct stm32prog_data *data)
return 0;
}
static int create_partitions(struct stm32prog_data *data)
{
#ifdef CONFIG_MMC
int offset = 0;
const int buflen = SZ_8K;
char *buf;
char uuid[UUID_STR_LEN + 1];
unsigned char *uuid_bin;
unsigned int mmc_id;
int i;
bool rootfs_found;
struct stm32prog_part_t *part;
buf = malloc(buflen);
if (!buf)
return -ENOMEM;
puts("partitions : ");
/* initialize the selected device */
for (i = 0; i < data->dev_nb; i++) {
offset = 0;
rootfs_found = false;
memset(buf, 0, buflen);
list_for_each_entry(part, &data->dev[i].part_list, list) {
/* skip Raw Image */
if (part->part_type == RAW_IMAGE)
continue;
if (offset + 100 > buflen) {
pr_debug("\n%s: buffer too small, %s skippped",
__func__, part->name);
continue;
}
if (!offset)
offset += sprintf(buf, "gpt write mmc %d \"",
data->dev[i].dev_id);
offset += snprintf(buf + offset, buflen - offset,
"name=%s,start=0x%llx,size=0x%llx",
part->name,
part->addr,
part->size);
if (part->part_type == PART_BINARY)
offset += snprintf(buf + offset,
buflen - offset,
",type="
LINUX_RESERVED_UUID);
else
offset += snprintf(buf + offset,
buflen - offset,
",type=linux");
if (part->part_type == PART_SYSTEM)
offset += snprintf(buf + offset,
buflen - offset,
",bootable");
if (!rootfs_found && !strcmp(part->name, "rootfs")) {
mmc_id = part->dev_id;
rootfs_found = true;
if (mmc_id < ARRAY_SIZE(uuid_mmc)) {
uuid_bin =
(unsigned char *)uuid_mmc[mmc_id].b;
uuid_bin_to_str(uuid_bin, uuid,
UUID_STR_FORMAT_GUID);
offset += snprintf(buf + offset,
buflen - offset,
",uuid=%s", uuid);
}
}
offset += snprintf(buf + offset, buflen - offset, ";");
}
if (offset) {
offset += snprintf(buf + offset, buflen - offset, "\"");
pr_debug("\ncmd: %s\n", buf);
if (run_command(buf, 0)) {
stm32prog_err("GPT partitionning fail: %s",
buf);
free(buf);
return -1;
}
}
if (data->dev[i].mmc)
part_init(mmc_get_blk_desc(data->dev[i].mmc));
#ifdef DEBUG
sprintf(buf, "gpt verify mmc %d", data->dev[i].dev_id);
pr_debug("\ncmd: %s", buf);
if (run_command(buf, 0))
printf("fail !\n");
else
printf("OK\n");
sprintf(buf, "part list mmc %d", data->dev[i].dev_id);
run_command(buf, 0);
#endif
}
puts("done\n");
free(buf);
#endif
return 0;
}
static int stm32prog_alt_add(struct stm32prog_data *data,
struct dfu_entity *dfu,
struct stm32prog_part_t *part)
@ -596,17 +781,30 @@ static int stm32prog_alt_add(struct stm32prog_data *data,
if (part->part_type == RAW_IMAGE) {
u64 dfu_size;
dfu_size = part->size;
if (part->dev->target == STM32PROG_MMC)
dfu_size = part->size / part->dev->mmc->read_bl_len;
else
dfu_size = part->size;
offset += snprintf(buf + offset, ALT_BUF_LEN - offset,
"raw 0x0 0x%llx", dfu_size);
} else {
offset += snprintf(buf + offset,
ALT_BUF_LEN - offset,
"part");
/* dev_id requested by DFU MMC */
if (part->target == STM32PROG_MMC)
offset += snprintf(buf + offset, ALT_BUF_LEN - offset,
" %d", part->dev_id);
offset += snprintf(buf + offset, ALT_BUF_LEN - offset,
" %d;", part->part_id);
}
switch (part->target) {
#ifdef CONFIG_MMC
case STM32PROG_MMC:
sprintf(dfustr, "mmc");
sprintf(devstr, "%d", part->dev_id);
break;
#endif
default:
stm32prog_err("invalid target: %d", part->target);
return -ENODEV;
@ -775,6 +973,10 @@ static void stm32prog_devices_init(struct stm32prog_data *data)
goto error;
}
ret = create_partitions(data);
if (ret)
goto error;
return;
error:

3
arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.h
View file

@ -19,6 +19,7 @@
enum stm32prog_target {
STM32PROG_NONE,
STM32PROG_MMC,
};
enum stm32prog_link_t {
@ -64,6 +65,8 @@ enum stm32prog_part_type {
struct stm32prog_dev_t {
enum stm32prog_target target;
char dev_id;
u32 erase_size;
struct mmc *mmc;
/* list of partition for this device / ordered in offset */
struct list_head part_list;
};

2
configs/stm32mp15_basic_defconfig
View file

@ -34,7 +34,6 @@ CONFIG_CMD_CLK=y
CONFIG_CMD_DFU=y
CONFIG_CMD_FUSE=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_GPT=y
CONFIG_CMD_I2C=y
CONFIG_CMD_MMC=y
CONFIG_CMD_MTD=y
@ -67,7 +66,6 @@ CONFIG_ENV_UBI_VOLUME="uboot_config"
CONFIG_ENV_UBI_VOLUME_REDUND="uboot_config_r"
CONFIG_SYS_RELOC_GD_ENV_ADDR=y
CONFIG_STM32_ADC=y
CONFIG_DFU_MMC=y
CONFIG_DFU_MTD=y
CONFIG_SET_DFU_ALT_INFO=y
CONFIG_USB_FUNCTION_FASTBOOT=y

2
configs/stm32mp15_trusted_defconfig
View file

@ -23,7 +23,6 @@ CONFIG_CMD_CLK=y
CONFIG_CMD_DFU=y
CONFIG_CMD_FUSE=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_GPT=y
CONFIG_CMD_I2C=y
CONFIG_CMD_MMC=y
CONFIG_CMD_MTD=y
@ -54,7 +53,6 @@ CONFIG_ENV_UBI_VOLUME="uboot_config"
CONFIG_ENV_UBI_VOLUME_REDUND="uboot_config_r"
CONFIG_SYS_RELOC_GD_ENV_ADDR=y
CONFIG_STM32_ADC=y
CONFIG_DFU_MMC=y
CONFIG_DFU_MTD=y
CONFIG_SET_DFU_ALT_INFO=y
CONFIG_USB_FUNCTION_FASTBOOT=y