package/boot/uboot-mediatek/patches/000-mtk-08-dts-mt7629-enable-JTAG-pins-by-default.patch

   1 From 4bee3f9e285007ccf77ca9916fff3d93fc4d8a80 Mon Sep 17 00:00:00 2001
   2 From: Weijie Gao <weijie.gao@mediatek.com>
   3 Date: Tue, 2 Mar 2021 15:43:27 +0800
   4 Subject: [PATCH 08/21] dts: mt7629: enable JTAG pins by default
   5
   6 The EPHY LEDs belongs to the built-in FE switch of MT7629, which is barely
   7 used. These LED pins on reference boards are used as JTAG socket. So it's
   8 a good idea to change the default state to JTAG, and this will make it
   9 convenience for debugging.
  10
  11 Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
  12 ---
  13  arch/arm/dts/mt7629-rfb.dts | 10 ++++++++++
  14  arch/arm/dts/mt7629.dtsi    |  6 ++++++
  15  2 files changed, 16 insertions(+)
  16
  17 --- a/arch/arm/dts/mt7629-rfb.dts
  18 +++ b/arch/arm/dts/mt7629-rfb.dts
  19 @@ -36,6 +36,16 @@
  20  };
  21
  22  &pinctrl {
  23 +       state_default: pinmux_conf {
  24 +               u-boot,dm-pre-reloc;
  25 +
  26 +               mux {
  27 +                       function = "jtag";
  28 +                       groups = "ephy_leds_jtag";
  29 +                       u-boot,dm-pre-reloc;
  30 +               };
  31 +       };
  32 +
  33         snfi_pins: snfi-pins {
  34                 mux {
  35                         function = "flash";
  36 --- a/arch/arm/dts/mt7629.dtsi
  37 +++ b/arch/arm/dts/mt7629.dtsi
  38 @@ -152,6 +152,12 @@
  39                 compatible = "mediatek,mt7629-pinctrl";
  40                 reg = <0x10217000 0x8000>;
  41
  42 +               pinctrl-names = "default";
  43 +               pinctrl-0 = <&state_default>;
  44 +
  45 +               state_default: pinmux_conf {
  46 +               };
  47 +
  48                 gpio: gpio-controller {
  49                         gpio-controller;
  50                         #gpio-cells = <2>;