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From abf72c0831a77e965e65088ebc992b6b5460bd2f Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.org>
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 <dave.stevenson@raspberrypi.org>
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 <dave.stevenson@raspberrypi.org>
---
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
@@ -233,6 +233,15 @@ 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));
@@ -242,7 +251,35 @@ 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
@@ -339,6 +376,7 @@ 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
@@ -36,6 +36,8 @@ 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,
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