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 <p...@kernel.org> --- board/CZ.NIC/turris_omnia/turris_omnia.c | 36 ++++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/board/CZ.NIC/turris_omnia/turris_omnia.c b/board/CZ.NIC/turris_omnia/turris_omnia.c index 5ddd873d0250..caae8ce44695 100644 --- a/board/CZ.NIC/turris_omnia/turris_omnia.c +++ b/board/CZ.NIC/turris_omnia/turris_omnia.c @@ -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, @@ -428,6 +431,38 @@ 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 @@ -944,6 +979,7 @@ 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"); -- 2.20.1
