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stm32mp: add the command stm32prog

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Add a specific command stm32prog for STM32MP soc family
witch allows to program the boot devices with the tool
STM32CubeProgrammer (http://www.st.com/STM32CubeProg).

This command uses the same UART STM32 protocol than MCU
STM32 with or USB with DFU protocol v1.1 (ithe MCU ST
extension are no supported).

The executed actions are based on a tab separated value file
with a stm32 header, the FlashLayout file
(https://wiki.st.com/stm32mpu/wiki/STM32CubeProgrammer_flashlayout).

This file is parsed by the U-Boot command to:
- initialize the devices
- create the partition table on each device
- initialize the DFU backend to access to not volatile memory
  (NOR/NAND/SD/eMMC) or to virtual device (OTP/PMIC)

Up to STM32PROG_MAX_DEV (5) devices can be updated with a FlashLayout.

The communication between U-Boot and STM32CubeProgrammer is done with
the specific alternate configuration (see "AN5275: USB DFU/USART protocols
used in STM32MP1 Series bootloaders" for details).

The command stm32prog is executed when a boot from USB is detected
(selected with bootpins) and we can program the boot devices with
a simple command (on Windows or Linux):

PC $>  STM32_Programmer_CLI -c port=usb1 -w flaslayout.tsv

1/ the ROM code loads TF-A in embedded RAM (DFU or uart)
2/ TF-A loads flashlayout file and U-Boot in DDR (DFU or uart)
3/ U-Boot executes the stm32prog command (DFU or uart)

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 09:24:49 +01:00
parent 7802a4495f
commit 954bd1a923
11 changed files with 974 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
arch/arm/mach-stm32mp/Kconfig
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@ -107,6 +107,18 @@ config STM32_ETZPC
help
Say y to enable STM32 Extended TrustZone Protection
config CMD_STM32PROG
bool "command stm32prog for STM32CudeProgrammer"
select DFU
select DFU_RAM
select DFU_VIRT
help
activate a specific command stm32prog for STM32MP soc family
witch update the device with the tools STM32CubeProgrammer,
using UART with STM32 protocol or USB with DFU protocol
NB: access to not volatile memory (NOR/NAND/SD/eMMC) is based
on U-Boot DFU framework
config CMD_STM32KEY
bool "command stm32key to fuse public key hash"
default y

1
arch/arm/mach-stm32mp/Makefile
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@ -10,6 +10,7 @@ obj-y += syscon.o
ifdef CONFIG_SPL_BUILD
obj-y += spl.o
else
obj-$(CONFIG_CMD_STM32PROG) += cmd_stm32prog/
obj-y += bsec.o
obj-$(CONFIG_CMD_STM32KEY) += cmd_stm32key.o
obj-$(CONFIG_ARMV7_PSCI) += psci.o

8
arch/arm/mach-stm32mp/cmd_stm32prog/Makefile Normal file
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@ -0,0 +1,8 @@
# SPDX-License-Identifier: GPL-2.0+
#
# Copyright (C) 2020, STMicroelectronics - All Rights Reserved
#
obj-y += cmd_stm32prog.o
obj-y += stm32prog.o
obj-y += stm32prog_usb.o

96
arch/arm/mach-stm32mp/cmd_stm32prog/cmd_stm32prog.c Normal file
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@ -0,0 +1,96 @@
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
/*
* Copyright (C) 2020, STMicroelectronics - All Rights Reserved
*/
#include <common.h>
#include <command.h>
#include <dfu.h>
#include "stm32prog.h"
struct stm32prog_data *stm32prog_data;
static int do_stm32prog(cmd_tbl_t *cmdtp, int flag, int argc,
char * const argv[])
{
ulong addr, size;
int dev, ret;
enum stm32prog_link_t link = LINK_UNDEFINED;
bool reset = false;
struct stm32prog_data *data;
if (argc < 3 || argc > 5)
return CMD_RET_USAGE;
if (!strcmp(argv[1], "usb"))
link = LINK_USB;
if (link == LINK_UNDEFINED) {
pr_err("not supported link=%s\n", argv[1]);
return CMD_RET_USAGE;
}
dev = (int)simple_strtoul(argv[2], NULL, 10);
addr = STM32_DDR_BASE;
size = 0;
if (argc > 3) {
addr = simple_strtoul(argv[3], NULL, 16);
if (!addr)
return CMD_RET_FAILURE;
}
if (argc > 4)
size = simple_strtoul(argv[4], NULL, 16);
data = (struct stm32prog_data *)malloc(sizeof(*data));
if (!data) {
pr_err("Alloc failed.");
return CMD_RET_FAILURE;
}
stm32prog_data = data;
ret = stm32prog_init(data, addr, size);
if (ret)
printf("Invalid or missing layout file.");
/* prepare DFU for device read/write */
ret = stm32prog_dfu_init(data);
if (ret)
goto cleanup;
switch (link) {
case LINK_USB:
reset = stm32prog_usb_loop(data, dev);
break;
default:
goto cleanup;
}
stm32prog_clean(data);
free(stm32prog_data);
stm32prog_data = NULL;
puts("Download done\n");
if (reset) {
puts("Reset...\n");
run_command("reset", 0);
}
return CMD_RET_SUCCESS;
cleanup:
stm32prog_clean(data);
free(stm32prog_data);
stm32prog_data = NULL;
return CMD_RET_FAILURE;
}
U_BOOT_CMD(stm32prog, 5, 0, do_stm32prog,
"<link> <dev> [<addr>] [<size>]\n"
"start communication with tools STM32Cubeprogrammer on <link> with Flashlayout at <addr>",
"<link> = usb\n"
"<dev> = device instance\n"
"<addr> = address of flashlayout\n"
"<size> = size of flashlayout\n"
);

480
arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.c Normal file
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@ -0,0 +1,480 @@
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
/*
* Copyright (C) 2020, STMicroelectronics - All Rights Reserved
*/
#include <common.h>
#include <console.h>
#include <dfu.h>
#include <malloc.h>
#include <dm/uclass.h>
#include <linux/list.h>
#include <linux/list_sort.h>
#include <linux/sizes.h>
#include "stm32prog.h"
#define OPT_SELECT BIT(0)
#define OPT_EMPTY BIT(1)
#define IS_SELECT(part) ((part)->option & OPT_SELECT)
#define IS_EMPTY(part) ((part)->option & OPT_EMPTY)
#define ALT_BUF_LEN SZ_1K
DECLARE_GLOBAL_DATA_PTR;
char *stm32prog_get_error(struct stm32prog_data *data)
{
static const char error_msg[] = "Unspecified";
if (strlen(data->error) == 0)
strcpy(data->error, error_msg);
return data->error;
}
static int parse_flash_layout(struct stm32prog_data *data,
ulong addr,
ulong size)
{
return -ENODEV;
}
static int __init part_cmp(void *priv, struct list_head *a, struct list_head *b)
{
struct stm32prog_part_t *parta, *partb;
parta = container_of(a, struct stm32prog_part_t, list);
partb = container_of(b, struct stm32prog_part_t, list);
return parta->addr > partb->addr ? 1 : -1;
}
static int init_device(struct stm32prog_data *data,
struct stm32prog_dev_t *dev)
{
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) {
default:
stm32prog_err("unknown device type = %d", dev->target);
return -ENODEV;
}
/* order partition list in offset order */
list_sort(NULL, &dev->part_list, &part_cmp);
part_id = 1;
pr_debug("id : Opt Phase Name target.n dev.n addr size part_off part_size\n");
list_for_each_entry(part, &dev->part_list, list) {
if (part->part_type == RAW_IMAGE) {
part->part_id = 0x0;
part->addr = 0x0;
if (block_dev)
part->size = block_dev->lba * block_dev->blksz;
else
part->size = last_addr;
pr_debug("-- : %1d %02x %14s %02d %02d.%02d %08llx %08llx\n",
part->option, part->id, part->name,
part->part_type, part->target,
part->dev_id, part->addr, part->size);
continue;
}
part->part_id = part_id++;
/* last partition : size to the end of the device */
if (part->list.next != &dev->part_list) {
next_part =
container_of(part->list.next,
struct stm32prog_part_t,
list);
if (part->addr < next_part->addr) {
part->size = next_part->addr -
part->addr;
} else {
stm32prog_err("%s (0x%x): same address : 0x%llx == %s (0x%x): 0x%llx",
part->name, part->id,
part->addr,
next_part->name,
next_part->id,
next_part->addr);
return -EINVAL;
}
} else {
if (part->addr <= last_addr) {
part->size = last_addr - part->addr;
} else {
stm32prog_err("%s (0x%x): invalid address 0x%llx (max=0x%llx)",
part->name, part->id,
part->addr, last_addr);
return -EINVAL;
}
}
if (part->addr < first_addr) {
stm32prog_err("%s (0x%x): invalid address 0x%llx (min=0x%llx)",
part->name, part->id,
part->addr, first_addr);
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,
part->dev_id, part->addr, part->size);
}
return 0;
}
static int treat_partition_list(struct stm32prog_data *data)
{
int i, j;
struct stm32prog_part_t *part;
for (j = 0; j < STM32PROG_MAX_DEV; j++) {
data->dev[j].target = STM32PROG_NONE;
INIT_LIST_HEAD(&data->dev[j].part_list);
}
for (i = 0; i < data->part_nb; i++) {
part = &data->part_array[i];
part->alt_id = -1;
/* skip partition with IP="none" */
if (part->target == STM32PROG_NONE) {
if (IS_SELECT(part)) {
stm32prog_err("Layout: selected none phase = 0x%x",
part->id);
return -EINVAL;
}
continue;
}
if (part->id == PHASE_FLASHLAYOUT ||
part->id > PHASE_LAST_USER) {
stm32prog_err("Layout: invalid phase = 0x%x",
part->id);
return -EINVAL;
}
for (j = i + 1; j < data->part_nb; j++) {
if (part->id == data->part_array[j].id) {
stm32prog_err("Layout: duplicated phase 0x%x at line %d and %d",
part->id, i, j);
return -EINVAL;
}
}
for (j = 0; j < STM32PROG_MAX_DEV; j++) {
if (data->dev[j].target == STM32PROG_NONE) {
/* new device found */
data->dev[j].target = part->target;
data->dev[j].dev_id = part->dev_id;
data->dev_nb++;
break;
} else if ((part->target == data->dev[j].target) &&
(part->dev_id == data->dev[j].dev_id)) {
break;
}
}
if (j == STM32PROG_MAX_DEV) {
stm32prog_err("Layout: too many device");
return -EINVAL;
}
part->dev = &data->dev[j];
list_add_tail(&part->list, &data->dev[j].part_list);
}
return 0;
}
static int stm32prog_alt_add(struct stm32prog_data *data,
struct dfu_entity *dfu,
struct stm32prog_part_t *part)
{
int ret = 0;
int offset = 0;
char devstr[10];
char dfustr[10];
char buf[ALT_BUF_LEN];
u32 size;
char multiplier, type;
/* max 3 digit for sector size */
if (part->size > SZ_1M) {
size = (u32)(part->size / SZ_1M);
multiplier = 'M';
} else if (part->size > SZ_1K) {
size = (u32)(part->size / SZ_1K);
multiplier = 'K';
} else {
size = (u32)part->size;
multiplier = 'B';
}
if (IS_SELECT(part) && !IS_EMPTY(part))
type = 'e'; /*Readable and Writeable*/
else
type = 'a';/*Readable*/
memset(buf, 0, sizeof(buf));
offset = snprintf(buf, ALT_BUF_LEN - offset,
"@%s/0x%02x/1*%d%c%c ",
part->name, part->id,
size, multiplier, type);
if (part->part_type == RAW_IMAGE) {
u64 dfu_size;
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");
offset += snprintf(buf + offset, ALT_BUF_LEN - offset,
" %d;", part->part_id);
}
switch (part->target) {
default:
stm32prog_err("invalid target: %d", part->target);
return -ENODEV;
}
pr_debug("dfu_alt_add(%s,%s,%s)\n", dfustr, devstr, buf);
ret = dfu_alt_add(dfu, dfustr, devstr, buf);
pr_debug("dfu_alt_add(%s,%s,%s) result %d\n",
dfustr, devstr, buf, ret);
return ret;
}
static int stm32prog_alt_add_virt(struct dfu_entity *dfu,
char *name, int phase, int size)
{
int ret = 0;
char devstr[4];
char buf[ALT_BUF_LEN];
sprintf(devstr, "%d", phase);
sprintf(buf, "@%s/0x%02x/1*%dBe", name, phase, size);
ret = dfu_alt_add(dfu, "virt", devstr, buf);
pr_debug("dfu_alt_add(virt,%s,%s) result %d\n", devstr, buf, ret);
return ret;
}
static int dfu_init_entities(struct stm32prog_data *data)
{
int ret = 0;
int phase, i, alt_id;
struct stm32prog_part_t *part;
struct dfu_entity *dfu;
int alt_nb;
alt_nb = 1; /* number of virtual = CMD */
if (data->part_nb == 0)
alt_nb++; /* +1 for FlashLayout */
else
for (i = 0; i < data->part_nb; i++) {
if (data->part_array[i].target != STM32PROG_NONE)
alt_nb++;
}
if (dfu_alt_init(alt_nb, &dfu))
return -ENODEV;
puts("DFU alt info setting: ");
if (data->part_nb) {
alt_id = 0;
for (phase = 1;
(phase <= PHASE_LAST_USER) &&
(alt_id < alt_nb) && !ret;
phase++) {
/* ordering alt setting by phase id */
part = NULL;
for (i = 0; i < data->part_nb; i++) {
if (phase == data->part_array[i].id) {
part = &data->part_array[i];
break;
}
}
if (!part)
continue;
if (part->target == STM32PROG_NONE)
continue;
part->alt_id = alt_id;
alt_id++;
ret = stm32prog_alt_add(data, dfu, part);
}
} else {
char buf[ALT_BUF_LEN];
sprintf(buf, "@FlashLayout/0x%02x/1*256Ke ram %x 40000",
PHASE_FLASHLAYOUT, STM32_DDR_BASE);
ret = dfu_alt_add(dfu, "ram", NULL, buf);
pr_debug("dfu_alt_add(ram, NULL,%s) result %d\n", buf, ret);
}
if (!ret)
ret = stm32prog_alt_add_virt(dfu, "virtual", PHASE_CMD, 512);
if (ret)
stm32prog_err("dfu init failed: %d", ret);
puts("done\n");
#ifdef DEBUG
dfu_show_entities();
#endif
return ret;
}
static void stm32prog_end_phase(struct stm32prog_data *data)
{
if (data->phase == PHASE_FLASHLAYOUT) {
if (parse_flash_layout(data, STM32_DDR_BASE, 0))
stm32prog_err("Layout: invalid FlashLayout");
return;
}
if (!data->cur_part)
return;
}
void stm32prog_do_reset(struct stm32prog_data *data)
{
if (data->phase == PHASE_RESET) {
data->phase = PHASE_DO_RESET;
puts("Reset requested\n");
}
}
void stm32prog_next_phase(struct stm32prog_data *data)
{
int phase, i;
struct stm32prog_part_t *part;
bool found;
phase = data->phase;
switch (phase) {
case PHASE_RESET:
case PHASE_END:
case PHASE_DO_RESET:
return;
}
/* found next selected partition */
data->cur_part = NULL;
data->phase = PHASE_END;
found = false;
do {
phase++;
if (phase > PHASE_LAST_USER)
break;
for (i = 0; i < data->part_nb; i++) {
part = &data->part_array[i];
if (part->id == phase) {
if (IS_SELECT(part) && !IS_EMPTY(part)) {
data->cur_part = part;
data->phase = phase;
found = true;
}
break;
}
}
} while (!found);
if (data->phase == PHASE_END)
puts("Phase=END\n");
}
static void stm32prog_devices_init(struct stm32prog_data *data)
{
int i;
int ret;
ret = treat_partition_list(data);
if (ret)
goto error;
/* initialize the selected device */
for (i = 0; i < data->dev_nb; i++) {
ret = init_device(data, &data->dev[i]);
if (ret)
goto error;
}
return;
error:
data->part_nb = 0;
}
int stm32prog_dfu_init(struct stm32prog_data *data)
{
/* init device if no error */
if (data->part_nb)
stm32prog_devices_init(data);
if (data->part_nb)
stm32prog_next_phase(data);
/* prepare DFU for device read/write */
dfu_free_entities();
return dfu_init_entities(data);
}
int stm32prog_init(struct stm32prog_data *data, ulong addr, ulong size)
{
memset(data, 0x0, sizeof(*data));
data->phase = PHASE_FLASHLAYOUT;
return parse_flash_layout(data, addr, size);
}
void stm32prog_clean(struct stm32prog_data *data)
{
/* clean */
dfu_free_entities();
free(data->part_array);
free(data->header_data);
}
/* DFU callback: used after serial and direct DFU USB access */
void dfu_flush_callback(struct dfu_entity *dfu)
{
if (!stm32prog_data)
return;
if (dfu->dev_type == DFU_DEV_RAM) {
if (dfu->alt == 0 &&
stm32prog_data->phase == PHASE_FLASHLAYOUT) {
stm32prog_end_phase(stm32prog_data);
/* waiting DFU DETACH for reenumeration */
}
}
if (!stm32prog_data->cur_part)
return;
if (dfu->alt == stm32prog_data->cur_part->alt_id) {
stm32prog_end_phase(stm32prog_data);
stm32prog_next_phase(stm32prog_data);
}
}
void dfu_initiated_callback(struct dfu_entity *dfu)
{
if (!stm32prog_data)
return;
if (!stm32prog_data->cur_part)
return;
/* force the saved offset for the current partition */
if (dfu->alt == stm32prog_data->cur_part->alt_id) {
dfu->offset = stm32prog_data->offset;
pr_debug("dfu offset = 0x%llx\n", dfu->offset);
}
}

137
arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog.h Normal file
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@ -0,0 +1,137 @@
/* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
/*
* Copyright (C) 2020, STMicroelectronics - All Rights Reserved
*/
#ifndef _STM32PROG_H_
#define _STM32PROG_H_
/* - phase defines ------------------------------------------------*/
#define PHASE_FLASHLAYOUT 0x00
#define PHASE_FIRST_USER 0x10
#define PHASE_LAST_USER 0xF0
#define PHASE_CMD 0xF1
#define PHASE_END 0xFE
#define PHASE_RESET 0xFF
#define PHASE_DO_RESET 0x1FF
#define DEFAULT_ADDRESS 0xFFFFFFFF
enum stm32prog_target {
STM32PROG_NONE,
};
enum stm32prog_link_t {
LINK_USB,
LINK_UNDEFINED,
};
struct image_header_s {
bool present;
u32 image_checksum;
u32 image_length;
};
struct raw_header_s {
u32 magic_number;
u32 image_signature[64 / 4];
u32 image_checksum;
u32 header_version;
u32 image_length;
u32 image_entry_point;
u32 reserved1;
u32 load_address;
u32 reserved2;
u32 version_number;
u32 option_flags;
u32 ecdsa_algorithm;
u32 ecdsa_public_key[64 / 4];
u32 padding[83 / 4];
u32 binary_type;
};
#define BL_HEADER_SIZE sizeof(struct raw_header_s)
/* partition type in flashlayout file */
enum stm32prog_part_type {
PART_BINARY,
PART_SYSTEM,
PART_FILESYSTEM,
RAW_IMAGE
};
/* device information */
struct stm32prog_dev_t {
enum stm32prog_target target;
char dev_id;
/* list of partition for this device / ordered in offset */
struct list_head part_list;
};
/* partition information build from FlashLayout and device */
struct stm32prog_part_t {
/* FlashLayout information */
int option;
int id;
enum stm32prog_part_type part_type;
enum stm32prog_target target;
char dev_id;
/* partition name
* (16 char in gpt, + 1 for null terminated string
*/
char name[16 + 1];
u64 addr;
u64 size;
/* information on associated device */
struct stm32prog_dev_t *dev; /* pointer to device */
u16 part_id; /* partition id in device */
int alt_id; /* alt id in usb/dfu */
struct list_head list;
};
#define STM32PROG_MAX_DEV 5
struct stm32prog_data {
/* Layout information */
int dev_nb; /* device number*/
struct stm32prog_dev_t dev[STM32PROG_MAX_DEV]; /* array of device */
int part_nb; /* nb of partition */
struct stm32prog_part_t *part_array; /* array of partition */
/* command internal information */
unsigned int phase;
u32 offset;
char error[255];
struct stm32prog_part_t *cur_part;
/* STM32 header information */
struct raw_header_s *header_data;
struct image_header_s header;
};
extern struct stm32prog_data *stm32prog_data;
/* generic part*/
u8 stm32prog_header_check(struct raw_header_s *raw_header,
struct image_header_s *header);
int stm32prog_dfu_init(struct stm32prog_data *data);
void stm32prog_next_phase(struct stm32prog_data *data);
void stm32prog_do_reset(struct stm32prog_data *data);
char *stm32prog_get_error(struct stm32prog_data *data);
#define stm32prog_err(args...) {\
if (data->phase != PHASE_RESET) { \
sprintf(data->error, args); \
data->phase = PHASE_RESET; \
pr_err("Error: %s\n", data->error); } \
}
/* Main function */
int stm32prog_init(struct stm32prog_data *data, ulong addr, ulong size);
bool stm32prog_usb_loop(struct stm32prog_data *data, int dev);
void stm32prog_clean(struct stm32prog_data *data);
#endif

206
arch/arm/mach-stm32mp/cmd_stm32prog/stm32prog_usb.c Normal file
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@ -0,0 +1,206 @@
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
/*
* Copyright (C) 2020, STMicroelectronics - All Rights Reserved
*/
#include <common.h>
#include <dfu.h>
#include <g_dnl.h>
#include <usb.h>
#include <asm/arch/stm32prog.h>
#include <asm/arch/sys_proto.h>
#include "stm32prog.h"
static int stm32prog_set_phase(struct stm32prog_data *data, u8 phase,
u32 offset)
{
struct stm32prog_part_t *part;
int i;
if (phase == data->phase) {
data->offset = offset;
return 0;
}
/* found partition for phase */
for (i = 0; i < data->part_nb; i++) {
part = &data->part_array[i];
if (part->id == phase) {
data->cur_part = part;
data->phase = phase;
data->offset = offset;
return 0;
}
}
return -EINVAL;
}
static int stm32prog_cmd_write(u64 offset, void *buf, long *len)
{
u8 phase;
u32 address;
u8 *pt = buf;
void (*entry)(void);
int ret;
if (*len < 5) {
pr_err("size not allowed\n");
return -EINVAL;
}
if (offset) {
pr_err("invalid offset\n");
return -EINVAL;
}
phase = pt[0];
address = (pt[1] << 24) | (pt[2] << 16) | (pt[3] << 8) | pt[4];
if (phase == PHASE_RESET) {
entry = (void *)address;
printf("## Starting application at 0x%x ...\n", address);
(*entry)();
printf("## Application terminated\n");
return 0;
}
/* set phase and offset */
ret = stm32prog_set_phase(stm32prog_data, phase, address);
if (ret)
pr_err("failed: %d\n", ret);
return ret;
}
#define PHASE_MIN_SIZE 9
static int stm32prog_cmd_read(u64 offset, void *buf, long *len)
{
u32 destination = DEFAULT_ADDRESS; /* destination address */
u32 dfu_offset;
u8 *pt_buf = buf;
int phase;
char *err_msg;
int length;
if (*len < PHASE_MIN_SIZE) {
pr_err("request exceeds allowed area\n");
return -EINVAL;
}
if (offset) {
*len = 0; /* EOF for second request */
return 0;
}
phase = stm32prog_data->phase;
if (phase == PHASE_FLASHLAYOUT)
destination = STM32_DDR_BASE;
dfu_offset = stm32prog_data->offset;
/* mandatory header, size = PHASE_MIN_SIZE */
*pt_buf++ = (u8)(phase & 0xFF);
*pt_buf++ = (u8)(destination);
*pt_buf++ = (u8)(destination >> 8);
*pt_buf++ = (u8)(destination >> 16);
*pt_buf++ = (u8)(destination >> 24);
*pt_buf++ = (u8)(dfu_offset);
*pt_buf++ = (u8)(dfu_offset >> 8);
*pt_buf++ = (u8)(dfu_offset >> 16);
*pt_buf++ = (u8)(dfu_offset >> 24);
if (phase == PHASE_RESET || phase == PHASE_DO_RESET) {
err_msg = stm32prog_get_error(stm32prog_data);
length = strlen(err_msg);
if (length + PHASE_MIN_SIZE > *len)
length = *len - PHASE_MIN_SIZE;
memcpy(pt_buf, err_msg, length);
*len = PHASE_MIN_SIZE + length;
stm32prog_do_reset(stm32prog_data);
} else if (phase == PHASE_FLASHLAYOUT) {
*pt_buf++ = stm32prog_data->part_nb ? 1 : 0;
*len = PHASE_MIN_SIZE + 1;
} else {
*len = PHASE_MIN_SIZE;
}
return 0;
}
int stm32prog_write_medium_virt(struct dfu_entity *dfu, u64 offset,
void *buf, long *len)
{
if (dfu->dev_type != DFU_DEV_VIRT)
return -EINVAL;
switch (dfu->data.virt.dev_num) {
case PHASE_CMD:
return stm32prog_cmd_write(offset, buf, len);
}
*len = 0;
return 0;
}
int stm32prog_read_medium_virt(struct dfu_entity *dfu, u64 offset,
void *buf, long *len)
{
if (dfu->dev_type != DFU_DEV_VIRT)
return -EINVAL;
switch (dfu->data.virt.dev_num) {
case PHASE_CMD:
return stm32prog_cmd_read(offset, buf, len);
}
*len = 0;
return 0;
}
int stm32prog_get_medium_size_virt(struct dfu_entity *dfu, u64 *size)
{
if (dfu->dev_type != DFU_DEV_VIRT) {
*size = 0;
pr_debug("%s, invalid dev_type = %d\n",
__func__, dfu->dev_type);
return -EINVAL;
}
switch (dfu->data.virt.dev_num) {
case PHASE_CMD:
*size = 512;
break;
}
return 0;
}
bool stm32prog_usb_loop(struct stm32prog_data *data, int dev)
{
int ret;
bool result;
/* USB download gadget for STM32 Programmer */
char product[128];
snprintf(product, sizeof(product),
"USB download gadget@Device ID /0x%03X, @Revision ID /0x%04X",
get_cpu_dev(), get_cpu_rev());
g_dnl_set_product(product);
if (stm32prog_data->phase == PHASE_FLASHLAYOUT) {
ret = run_usb_dnl_gadget(dev, "usb_dnl_dfu");
if (ret || stm32prog_data->phase == PHASE_DO_RESET)
return ret;
/* prepare the second enumeration with the FlashLayout */
if (stm32prog_data->phase == PHASE_FLASHLAYOUT)
stm32prog_dfu_init(data);
/* found next selected partition */
stm32prog_next_phase(data);
}
ret = run_usb_dnl_gadget(dev, "usb_dnl_dfu");
result = !!(ret) || (stm32prog_data->phase == PHASE_DO_RESET);
g_dnl_set_product(NULL);
return result;
}
int g_dnl_get_board_bcd_device_number(int gcnum)
{
pr_debug("%s\n", __func__);
return 0x200;
}

12
arch/arm/mach-stm32mp/include/mach/stm32prog.h Normal file
View File

@ -0,0 +1,12 @@
/* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
/*
* Copyright (C) 2020, STMicroelectronics - All Rights Reserved
*/
#define STM32PROG_VIRT_FIRST_DEV_NUM 0xF1
int stm32prog_write_medium_virt(struct dfu_entity *dfu, u64 offset,
void *buf, long *len);
int stm32prog_read_medium_virt(struct dfu_entity *dfu, u64 offset,
void *buf, long *len);
int stm32prog_get_medium_size_virt(struct dfu_entity *dfu, u64 *size);

20
board/st/common/stm32mp_dfu.c
View File

@ -11,6 +11,7 @@
#include <misc.h>
#include <mtd.h>
#include <mtd_node.h>
#include <asm/arch/stm32prog.h>
#define DFU_ALT_BUF_LEN SZ_1K
@ -211,12 +212,31 @@ int dfu_read_medium_virt(struct dfu_entity *dfu, u64 offset,
case 0x1:
return dfu_pmic_read(offset, buf, len);
}
if (CONFIG_IS_ENABLED(CMD_STM32PROG) &&
dfu->data.virt.dev_num >= STM32PROG_VIRT_FIRST_DEV_NUM)
return stm32prog_read_medium_virt(dfu, offset, buf, len);
*len = 0;
return 0;
}
int dfu_write_medium_virt(struct dfu_entity *dfu, u64 offset,
void *buf, long *len)
{
if (CONFIG_IS_ENABLED(CMD_STM32PROG) &&
dfu->data.virt.dev_num >= STM32PROG_VIRT_FIRST_DEV_NUM)
return stm32prog_write_medium_virt(dfu, offset, buf, len);
return -EOPNOTSUPP;
}
int __weak dfu_get_medium_size_virt(struct dfu_entity *dfu, u64 *size)
{
if (CONFIG_IS_ENABLED(CMD_STM32PROG) &&
dfu->data.virt.dev_num >= STM32PROG_VIRT_FIRST_DEV_NUM)
return stm32prog_get_medium_size_virt(dfu, size);
*size = SZ_1K;
return 0;

3
configs/stm32mp15_basic_defconfig
View File

@ -7,6 +7,7 @@ CONFIG_SYS_SPI_U_BOOT_OFFS=0x80000
CONFIG_SPL_MMC_SUPPORT=y
CONFIG_SPL=y
CONFIG_TARGET_ST_STM32MP15x=y
CONFIG_CMD_STM32PROG=y
CONFIG_ENV_OFFSET_REDUND=0x2C0000
CONFIG_SPL_SPI_FLASH_SUPPORT=y
CONFIG_SPL_SPI_SUPPORT=y
@ -67,9 +68,7 @@ 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_RAM=y
CONFIG_DFU_MTD=y
CONFIG_DFU_VIRT=y
CONFIG_SET_DFU_ALT_INFO=y
CONFIG_USB_FUNCTION_FASTBOOT=y
CONFIG_FASTBOOT_BUF_ADDR=0xC0000000

3
configs/stm32mp15_trusted_defconfig
View File

@ -5,6 +5,7 @@ CONFIG_SYS_MALLOC_F_LEN=0x3000
CONFIG_ENV_OFFSET=0x280000
CONFIG_ENV_SECT_SIZE=0x40000
CONFIG_TARGET_ST_STM32MP15x=y
CONFIG_CMD_STM32PROG=y
CONFIG_ENV_OFFSET_REDUND=0x2C0000
CONFIG_DISTRO_DEFAULTS=y
CONFIG_FIT=y
@ -54,9 +55,7 @@ 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_RAM=y
CONFIG_DFU_MTD=y
CONFIG_DFU_VIRT=y
CONFIG_SET_DFU_ALT_INFO=y
CONFIG_USB_FUNCTION_FASTBOOT=y
CONFIG_FASTBOOT_BUF_ADDR=0xC0000000