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stm32mp: stm32prog: support for script

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Support an U-Boot script included in uimage instead of flashlayout file
(text file in tsv format).

This feature is used to execute this script directly when U-Boot is
loaded in DDR (for update without STM32CubeProgrammer for example).

A simple example with dfu-util only is:

$> echo "dfu 0" > script.cmd
$> mkimage -C none -A arm -T script -d script.cmd script.uimg
$> mkimage -T stm32image -a 0xC0000000 -e 0xC0000000 -d script.uimg \
  script.stm32

$> dfu-util -d 0483:df11 -a 1 -D tf-a.stm32
$> dfu-util -d 0483:df11 -a 0 -D script.stm32
$> dfu-util -d 0483:df11 -a 0 -D u-boot.stm32
$> dfu-util -d 0483:df11 -a 0 -e

Then you can used dfu-utils to update your device

To increase speed, you can also switch to fastboot protocol with:
  echo "fastboot 0" > script.cmd

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 09:25:02 +01:00
parent 99d643cb41
commit d0686c69ff
1 changed files with 14 additions and 0 deletions
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14
arch/arm/mach-stm32mp/cmd_stm32prog/cmd_stm32prog.c
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@ -6,6 +6,7 @@
#include <common.h>
#include <command.h>
#include <dfu.h>
#include <image.h>
#include <asm/arch/stm32prog.h>
#include "stm32prog.h"
@ -44,6 +45,7 @@ static int do_stm32prog(cmd_tbl_t *cmdtp, int flag, int argc,
int dev, ret;
enum stm32prog_link_t link = LINK_UNDEFINED;
bool reset = false;
struct image_header_s header;
struct stm32prog_data *data;
if (argc < 3 || argc > 5)
@ -71,6 +73,18 @@ static int do_stm32prog(cmd_tbl_t *cmdtp, int flag, int argc,
if (argc > 4)
size = simple_strtoul(argv[4], NULL, 16);
/* check STM32IMAGE presence */
if (size == 0 &&
!stm32prog_header_check((struct raw_header_s *)addr, &header)) {
size = header.image_length + BL_HEADER_SIZE;
/* uImage detected in STM32IMAGE, execute the script */
if (IMAGE_FORMAT_LEGACY ==
genimg_get_format((void *)(addr + BL_HEADER_SIZE)))
return image_source_script(addr + BL_HEADER_SIZE,
"script@1");
}
enable_vidconsole();
data = (struct stm32prog_data *)malloc(sizeof(*data));