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stm32mp: stm32prog: add support of RAM target

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Add support of RAM target in flashlayout to load kernel image
("system") and device tree ("filesystem") in DDR with DFU and
start these images.

The flashlayout.tsv is:

-	0x01	fsbl		Binary		none	0x00000000	tf-a.stm32
-	0x03	ssbl		Binary		none	0x00000000	u-boot.stm32
P	0x10	kernel		System		ram0	0xC2000000	uImage.bin
P	0x11	dtb		FileSystem	ram0	0xC4000000	dtb.bin

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
This commit is contained in:
Patrick Delaunay 2020-03-18 09:25:03 +01:00
parent d0686c69ff
commit 306a5cf24f
3 changed files with 62 additions and 2 deletions
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28
arch/arm/mach-stm32mp/cmd_stm32prog/cmd_stm32prog.c
View file

@ -47,6 +47,7 @@ static int do_stm32prog(cmd_tbl_t *cmdtp, int flag, int argc,
bool reset = false;
struct image_header_s header;
struct stm32prog_data *data;
u32 uimage, dtb;
if (argc < 3 || argc > 5)
return CMD_RET_USAGE;
@ -118,11 +119,38 @@ static int do_stm32prog(cmd_tbl_t *cmdtp, int flag, int argc,
goto cleanup;
}
uimage = data->uimage;
dtb = data->dtb;
stm32prog_clean(data);
free(stm32prog_data);
stm32prog_data = NULL;
puts("Download done\n");
if (uimage) {
char boot_addr_start[20];
char dtb_addr[20];
char *bootm_argv[5] = {
"bootm", boot_addr_start, "-", dtb_addr, NULL
};
if (!dtb)
bootm_argv[3] = env_get("fdtcontroladdr");
else
snprintf(dtb_addr, sizeof(dtb_addr) - 1,
"0x%x", dtb);
snprintf(boot_addr_start, sizeof(boot_addr_start) - 1,
"0x%x", uimage);
printf("Booting kernel at %s - %s...\n\n\n",
boot_addr_start, bootm_argv[3]);
/* Try bootm for legacy and FIT format image */
if (genimg_get_format((void *)uimage) != IMAGE_FORMAT_INVALID)
do_bootm(cmdtp, 0, 4, bootm_argv);
else if CONFIG_IS_ENABLED(CMD_BOOTZ)
do_bootz(cmdtp, 0, 4, bootm_argv);
}
if (reset) {
puts("Reset...\n");
run_command("reset", 0);

29
arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c
View file

@ -272,6 +272,9 @@ static int parse_ip(struct stm32prog_data *data,
} else if (!strncmp(p, "spi-nand", 8)) {
part->target = STM32PROG_SPI_NAND;
len = 8;
} else if (!strncmp(p, "ram", 3)) {
part->target = STM32PROG_RAM;
len = 0;
} else {
result = -EINVAL;
}
@ -610,6 +613,11 @@ static int init_device(struct stm32prog_data *data,
dev->mtd = mtd;
break;
#endif
case STM32PROG_RAM:
first_addr = gd->bd->bi_dram[0].start;
last_addr = first_addr + gd->bd->bi_dram[0].size;
dev->erase_size = 1;
break;
default:
stm32prog_err("unknown device type = %d", dev->target);
return -ENODEV;
@ -1022,7 +1030,11 @@ static int stm32prog_alt_add(struct stm32prog_data *data,
part->name, part->id,
size, multiplier, type);
if (part->part_type == RAW_IMAGE) {
if (part->target == STM32PROG_RAM) {
offset += snprintf(buf + offset, ALT_BUF_LEN - offset,
"ram 0x%llx 0x%llx",
part->addr, part->size);
} else if (part->part_type == RAW_IMAGE) {
u64 dfu_size;
if (part->dev->target == STM32PROG_MMC)
@ -1073,6 +1085,10 @@ static int stm32prog_alt_add(struct stm32prog_data *data,
get_mtd_by_target(devstr, part->target, part->dev_id);
break;
#endif
case STM32PROG_RAM:
sprintf(dfustr, "ram");
sprintf(devstr, "0");
break;
default:
stm32prog_err("invalid target: %d", part->target);
return -ENODEV;
@ -1440,6 +1456,13 @@ static void stm32prog_end_phase(struct stm32prog_data *data)
if (!data->cur_part)
return;
if (data->cur_part->target == STM32PROG_RAM) {
if (data->cur_part->part_type == PART_SYSTEM)
data->uimage = data->cur_part->addr;
if (data->cur_part->part_type == PART_FILESYSTEM)
data->dtb = data->cur_part->addr;
}
if (CONFIG_IS_ENABLED(MMC) &&
data->cur_part->part_id < 0) {
char cmdbuf[60];
@ -1569,6 +1592,10 @@ static int part_delete(struct stm32prog_data *data,
}
break;
#endif
case STM32PROG_RAM:
printf("on ram: ");
memset((void *)(uintptr_t)part->addr, 0, (size_t)part->size);
break;
default:
ret = -1;
stm32prog_err("%s (0x%x): erase invalid", part->name, part->id);

7
arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.h
View file

@ -27,7 +27,8 @@ enum stm32prog_target {
STM32PROG_MMC,
STM32PROG_NAND,
STM32PROG_NOR,
STM32PROG_SPI_NAND
STM32PROG_SPI_NAND,
STM32PROG_RAM
};
enum stm32prog_link_t {
@ -136,6 +137,10 @@ struct stm32prog_data {
u8 *buffer; /* size = USART_RAM_BUFFER_SIZE*/
int dfu_seq;
u8 read_phase;
/* bootm information */
u32 uimage;
u32 dtb;
};
extern struct stm32prog_data *stm32prog_data;