target/linux/brcm2708/patches-4.19/950-0255-firmware-raspberrypi-Report-the-fw-git-hash-during-p.patch

   1 From 9abde0ff52268580501b3120629f3c92f0e5d589 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Thu, 10 Jan 2019 18:48:54 +0000
   4 Subject: [PATCH] firmware: raspberrypi: Report the fw git hash during
   5  probe
   6
   7 The firmware can now report the git hash from which it was built
   8 via the mailbox, so report it during probe.
   9
  10 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  11 ---
  12  drivers/firmware/raspberrypi.c             | 17 +++++++++++++++++
  13  include/soc/bcm2835/raspberrypi-firmware.h |  1 +
  14  2 files changed, 18 insertions(+)
  15
  16 --- a/drivers/firmware/raspberrypi.c
  17 +++ b/drivers/firmware/raspberrypi.c
  18 @@ -263,6 +263,22 @@ rpi_firmware_print_firmware_revision(str
  19  }
  20
  21  static void
  22 +rpi_firmware_print_firmware_hash(struct rpi_firmware *fw)
  23 +{
  24 +       u32 hash[5];
  25 +       int ret = rpi_firmware_property(fw,
  26 +                                       RPI_FIRMWARE_GET_FIRMWARE_HASH,
  27 +                                       hash, sizeof(hash));
  28 +
  29 +       if (ret)
  30 +               return;
  31 +
  32 +       dev_info(fw->cl.dev,
  33 +                "Firmware hash is %08x%08x%08x%08x%08x\n",
  34 +                hash[0], hash[1], hash[2], hash[3], hash[4]);
  35 +}
  36 +
  37 +static void
  38  rpi_register_hwmon_driver(struct device *dev, struct rpi_firmware *fw)
  39  {
  40         u32 packet;
  41 @@ -308,6 +324,7 @@ static int rpi_firmware_probe(struct pla
  42         g_pdev = pdev;
  43
  44         rpi_firmware_print_firmware_revision(fw);
  45 +       rpi_firmware_print_firmware_hash(fw);
  46         rpi_register_hwmon_driver(dev, fw);
  47
  48         return 0;
  49 --- a/include/soc/bcm2835/raspberrypi-firmware.h
  50 +++ b/include/soc/bcm2835/raspberrypi-firmware.h
  51 @@ -42,6 +42,7 @@ enum rpi_firmware_property_tag {
  52         RPI_FIRMWARE_PROPERTY_END =                           0,
  53         RPI_FIRMWARE_GET_FIRMWARE_REVISION =                  0x00000001,
  54         RPI_FIRMWARE_GET_FIRMWARE_VARIANT =                   0x00000002,
  55 +       RPI_FIRMWARE_GET_FIRMWARE_HASH =                      0x00000003,
  56
  57         RPI_FIRMWARE_SET_CURSOR_INFO =                        0x00008010,
  58         RPI_FIRMWARE_SET_CURSOR_STATE =                       0x00008011,