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arm: mvebu: turris_omnia: Show MCU version

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There are already more MCU firmware versions for Turris Omnia in
production, so display git commit (version) of the MCU firmware during
U-Boot startup. It will help to identify what version of MCU firmware is
Turris Omnia using.

MCU firmware for Turris Omnia is open source and available at website:
https://gitlab.nic.cz/turris/hw/omnia_hw_ctrl

It can be updated from running system via i2c bus with this tool:
https://gitlab.nic.cz/turris/omnia-mcutool

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Pali Rohár 2022-08-10 11:00:25 +02:00 committed by Stefan Roese
parent 5a86d67e31
commit 455f55e4a3
1 changed files with 36 additions and 0 deletions
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36
board/CZ.NIC/turris_omnia/turris_omnia.c
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@ -21,6 +21,7 @@
#include <dm/uclass.h>
#include <dt-bindings/gpio/gpio.h>
#include <fdt_support.h>
#include <hexdump.h>
#include <time.h>
#include <linux/bitops.h>
#include <linux/delay.h>
@ -61,7 +62,9 @@ DECLARE_GLOBAL_DATA_PTR;
enum mcu_commands {
CMD_GET_STATUS_WORD = 0x01,
CMD_GET_RESET = 0x09,
CMD_GET_FW_VERSION_APP = 0x0a,
CMD_WATCHDOG_STATE = 0x0b,
CMD_GET_FW_VERSION_BOOT = 0x0e,
/* available if STS_FEATURES_SUPPORTED bit set in status word */
CMD_GET_FEATURES = 0x10,
@ -418,6 +421,38 @@ static const char * const omnia_get_mcu_type(void)
return mcu_types[stsword & STS_MCU_TYPE_MASK];
}
static const char * const omnia_get_mcu_version(void)
{
static char version[82];
u8 version_app[20];
u8 version_boot[20];
int ret;
ret = omnia_mcu_read(CMD_GET_FW_VERSION_APP, &version_app, sizeof(version_app));
if (ret)
return "unknown";
ret = omnia_mcu_read(CMD_GET_FW_VERSION_BOOT, &version_boot, sizeof(version_boot));
if (ret)
return "unknown";
/*
* If git commits of MCU bootloader and MCU application are same then
* show version only once. If they are different then show both commits.
*/
if (!memcmp(version_app, version_boot, 20)) {
bin2hex(version, version_app, 20);
version[40] = '\0';
} else {
bin2hex(version, version_boot, 20);
version[40] = '/';
bin2hex(version + 41, version_app, 20);
version[81] = '\0';
}
return version;
}
/*
* Define the DDR layout / topology here in the board file. This will
* be used by the DDR3 init code in the SPL U-Boot version to configure
@ -934,6 +969,7 @@ int show_board_info(void)
err = turris_atsha_otp_get_serial_number(&version_num, &serial_num);
printf("Model: Turris Omnia\n");
printf(" MCU type: %s\n", omnia_get_mcu_type());
printf(" MCU version: %s\n", omnia_get_mcu_version());
printf(" RAM size: %i MiB\n", omnia_get_ram_size_gb() * 1024);
if (err)
printf(" Serial Number: unknown\n");