target/linux/generic/backport-6.1/813-v6.5-0002-nvmem-imx-ocotp-Reverse-MAC-addresses-on-all-i.MX-de.patch

   1 From 8a00fc606312c68b98add8fe8e6f7a013ce29e78 Mon Sep 17 00:00:00 2001
   2 From: Alexander Stein <alexander.stein@ew.tq-group.com>
   3 Date: Sun, 11 Jun 2023 15:03:06 +0100
   4 Subject: [PATCH] nvmem: imx-ocotp: Reverse MAC addresses on all i.MX derivates
   5
   6 Not just i.MX8M, but all i.MX6/7 (and subtypes) need to reverse the
   7 MAC address read from fuses. Exceptions are i.MX6SLL and i.MX7ULP which
   8 do not support ethernet at all.
   9
  10 Fixes: d0221a780cbc ("nvmem: imx-ocotp: add support for post processing")
  11 Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
  12 Tested-by: Richard Leitner <richard.leitner@skidata.com> # imx6q
  13 Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
  14 Message-ID: <20230611140330.154222-3-srinivas.kandagatla@linaro.org>
  15 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
  16 ---
  17  drivers/nvmem/imx-ocotp.c | 8 +-------
  18  1 file changed, 1 insertion(+), 7 deletions(-)
  19
  20 --- a/drivers/nvmem/imx-ocotp.c
  21 +++ b/drivers/nvmem/imx-ocotp.c
  22 @@ -97,7 +97,6 @@ struct ocotp_params {
  23         unsigned int bank_address_words;
  24         void (*set_timing)(struct ocotp_priv *priv);
  25         struct ocotp_ctrl_reg ctrl;
  26 -       bool reverse_mac_address;
  27  };
  28
  29  static int imx_ocotp_wait_for_busy(struct ocotp_priv *priv, u32 flags)
  30 @@ -545,7 +544,6 @@ static const struct ocotp_params imx8mq_
  31         .bank_address_words = 0,
  32         .set_timing = imx_ocotp_set_imx6_timing,
  33         .ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
  34 -       .reverse_mac_address = true,
  35  };
  36
  37  static const struct ocotp_params imx8mm_params = {
  38 @@ -553,7 +551,6 @@ static const struct ocotp_params imx8mm_
  39         .bank_address_words = 0,
  40         .set_timing = imx_ocotp_set_imx6_timing,
  41         .ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
  42 -       .reverse_mac_address = true,
  43  };
  44
  45  static const struct ocotp_params imx8mn_params = {
  46 @@ -561,7 +558,6 @@ static const struct ocotp_params imx8mn_
  47         .bank_address_words = 0,
  48         .set_timing = imx_ocotp_set_imx6_timing,
  49         .ctrl = IMX_OCOTP_BM_CTRL_DEFAULT,
  50 -       .reverse_mac_address = true,
  51  };
  52
  53  static const struct ocotp_params imx8mp_params = {
  54 @@ -569,7 +565,6 @@ static const struct ocotp_params imx8mp_
  55         .bank_address_words = 0,
  56         .set_timing = imx_ocotp_set_imx6_timing,
  57         .ctrl = IMX_OCOTP_BM_CTRL_8MP,
  58 -       .reverse_mac_address = true,
  59  };
  60
  61  static const struct of_device_id imx_ocotp_dt_ids[] = {
  62 @@ -624,8 +619,7 @@ static int imx_ocotp_probe(struct platfo
  63         imx_ocotp_nvmem_config.size = 4 * priv->params->nregs;
  64         imx_ocotp_nvmem_config.dev = dev;
  65         imx_ocotp_nvmem_config.priv = priv;
  66 -       if (priv->params->reverse_mac_address)
  67 -               imx_ocotp_nvmem_config.layout = &imx_ocotp_layout;
  68 +       imx_ocotp_nvmem_config.layout = &imx_ocotp_layout;
  69
  70         priv->config = &imx_ocotp_nvmem_config;
  71