target/linux/mediatek/patches-5.15/946-arm64-dts-mt7986-move-dlm-in-a-dedicated-node.patch

   1 From 9f76be683a8ec498563c294bc1cc279468058302 Mon Sep 17 00:00:00 2001
   2 Message-Id: <9f76be683a8ec498563c294bc1cc279468058302.1678719283.git.lorenzo@kernel.org>
   3 From: Lorenzo Bianconi <lorenzo@kernel.org>
   4 Date: Mon, 13 Mar 2023 15:53:30 +0100
   5 Subject: [PATCH net-next] arm64: dts: mt7986: move dlm in a dedicated node
   6
   7 Since the dlm memory region is not part of the RAM SoC, move dlm in a
   8 deidicated syscon node.
   9 This patch helps to keep backward-compatibility with older version of
  10 uboot codebase where we have a limit of 8 reserved-memory dts child
  11 nodes.
  12
  13 Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
  14 ---
  15  arch/arm64/boot/dts/mediatek/mt7986a.dtsi | 30 ++++++++++++-----------
  16  1 file changed, 16 insertions(+), 14 deletions(-)
  17
  18 --- a/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
  19 +++ b/arch/arm64/boot/dts/mediatek/mt7986a.dtsi
  20 @@ -101,16 +101,6 @@
  21                         reg = <0 0x4fd80000 0 0x240000>;
  22                         no-map;
  23                 };
  24 -
  25 -               wo_dlm0: wo-dlm@151e8000 {
  26 -                       reg = <0 0x151e8000 0 0x2000>;
  27 -                       no-map;
  28 -               };
  29 -
  30 -               wo_dlm1: wo-dlm@151f8000 {
  31 -                       reg = <0 0x151f8000 0 0x2000>;
  32 -                       no-map;
  33 -               };
  34         };
  35
  36         timer {
  37 @@ -523,10 +513,11 @@
  38                         reg = <0 0x15010000 0 0x1000>;
  39                         interrupt-parent = <&gic>;
  40                         interrupts = <GIC_SPI 205 IRQ_TYPE_LEVEL_HIGH>;
  41 -                       memory-region = <&wo_emi0>, <&wo_dlm0>, <&wo_data>;
  42 -                       memory-region-names = "wo-emi", "wo-dlm", "wo-data";
  43 +                       memory-region = <&wo_emi0>, <&wo_data>;
  44 +                       memory-region-names = "wo-emi", "wo-data";
  45                         mediatek,wo-ccif = <&wo_ccif0>;
  46                         mediatek,wo-ilm = <&wo_ilm0>;
  47 +                       mediatek,wo-dlm = <&wo_dlm0>;
  48                         mediatek,wo-cpuboot = <&wo_cpuboot>;
  49                 };
  50
  51 @@ -536,10 +527,11 @@
  52                         reg = <0 0x15011000 0 0x1000>;
  53                         interrupt-parent = <&gic>;
  54                         interrupts = <GIC_SPI 206 IRQ_TYPE_LEVEL_HIGH>;
  55 -                       memory-region = <&wo_emi1>, <&wo_dlm1>, <&wo_data>;
  56 -                       memory-region-names = "wo-emi", "wo-dlm", "wo-data";
  57 +                       memory-region = <&wo_emi1>, <&wo_data>;
  58 +                       memory-region-names = "wo-emi", "wo-data";
  59                         mediatek,wo-ccif = <&wo_ccif1>;
  60                         mediatek,wo-ilm = <&wo_ilm1>;
  61 +                       mediatek,wo-dlm = <&wo_dlm1>;
  62                         mediatek,wo-cpuboot = <&wo_cpuboot>;
  63                 };
  64
  65 @@ -567,6 +559,16 @@
  66                         reg = <0 0x151f0000 0 0x8000>;
  67                 };
  68
  69 +               wo_dlm0: syscon@151e8000 {
  70 +                       compatible = "mediatek,mt7986-wo-dlm", "syscon";
  71 +                       reg = <0 0x151e8000 0 0x2000>;
  72 +               };
  73 +
  74 +               wo_dlm1: syscon@151f8000 {
  75 +                       compatible = "mediatek,mt7986-wo-dlm", "syscon";
  76 +                       reg = <0 0x151f8000 0 0x2000>;
  77 +               };
  78 +
  79                 wo_cpuboot: syscon@15194000 {
  80                         compatible = "mediatek,mt7986-wo-cpuboot", "syscon";
  81                         reg = <0 0x15194000 0 0x1000>;