From ab759f3138e5ea798e93003e6ce0ffe66ac2970f Mon Sep 17 00:00:00 2001 From: Dave Stevenson Date: Thu, 10 Jan 2019 17:58:06 +0000 Subject: [PATCH] firmware: raspberrypi: Report the fw variant during probe The driver already reported the firmware build date during probe. The mailbox calls have been extended to also report the variant 1 = standard start.elf 2 = start_x.elf (includes camera stack) 3 = start_db.elf (includes assert logging) 4 = start_cd.elf (cutdown version for smallest memory footprint). Log the variant during probe. Signed-off-by: Dave Stevenson firmware: raspberrypi: Report the fw git hash during probe The firmware can now report the git hash from which it was built via the mailbox, so report it during probe. Signed-off-by: Dave Stevenson --- drivers/firmware/raspberrypi.c | 40 +++++++++++++++++++++- include/soc/bcm2835/raspberrypi-firmware.h | 2 ++ 2 files changed, 41 insertions(+), 1 deletion(-) --- a/drivers/firmware/raspberrypi.c +++ b/drivers/firmware/raspberrypi.c @@ -234,6 +234,15 @@ rpi_firmware_print_firmware_revision(str { time64_t date_and_time; u32 packet; + static const char * const variant_strs[] = { + "unknown", + "start", + "start_x", + "start_db", + "start_cd", + }; + const char *variant_str = "cmd unsupported"; + u32 variant; int ret = rpi_firmware_property(fw, RPI_FIRMWARE_GET_FIRMWARE_REVISION, &packet, sizeof(packet)); @@ -243,7 +252,35 @@ rpi_firmware_print_firmware_revision(str /* This is not compatible with y2038 */ date_and_time = packet; - dev_info(fw->cl.dev, "Attached to firmware from %ptT\n", &date_and_time); + + ret = rpi_firmware_property(fw, RPI_FIRMWARE_GET_FIRMWARE_VARIANT, + &variant, sizeof(variant)); + + if (!ret) { + if (variant >= ARRAY_SIZE(variant_strs)) + variant = 0; + variant_str = variant_strs[variant]; + } + + dev_info(fw->cl.dev, + "Attached to firmware from %ptT, variant %s\n", + &date_and_time, variant_str); +} + +static void +rpi_firmware_print_firmware_hash(struct rpi_firmware *fw) +{ + u32 hash[5]; + int ret = rpi_firmware_property(fw, + RPI_FIRMWARE_GET_FIRMWARE_HASH, + hash, sizeof(hash)); + + if (ret) + return; + + dev_info(fw->cl.dev, + "Firmware hash is %08x%08x%08x%08x%08x\n", + hash[0], hash[1], hash[2], hash[3], hash[4]); } static void @@ -333,6 +370,7 @@ static int rpi_firmware_probe(struct pla g_pdev = pdev; rpi_firmware_print_firmware_revision(fw); + rpi_firmware_print_firmware_hash(fw); rpi_register_hwmon_driver(dev, fw); rpi_register_clk_driver(dev); --- a/include/soc/bcm2835/raspberrypi-firmware.h +++ b/include/soc/bcm2835/raspberrypi-firmware.h @@ -38,6 +38,8 @@ struct rpi_firmware_property_tag_header enum rpi_firmware_property_tag { RPI_FIRMWARE_PROPERTY_END = 0, RPI_FIRMWARE_GET_FIRMWARE_REVISION = 0x00000001, + RPI_FIRMWARE_GET_FIRMWARE_VARIANT = 0x00000002, + RPI_FIRMWARE_GET_FIRMWARE_HASH = 0x00000003, RPI_FIRMWARE_SET_CURSOR_INFO = 0x00008010, RPI_FIRMWARE_SET_CURSOR_STATE = 0x00008011,