From 0d5ccb38d19574fecfa471205317d37221ec59a7 Mon Sep 17 00:00:00 2001 From: Nicolas Chauvet Date: Sat, 8 Aug 2015 15:58:12 +0200 Subject: [PATCH] ARM: tegra: Fix AHB base address on Tegra20, Tegra30 and Tegra114 Current base address is wrong by 0x04 bytes for AHB bus device as shown in dmesg: tegra-ahb 6000c004.ahb: incorrect AHB base address in DT data - enabling workaround To correct old DTBs, commit ce7a10b0ff3d ("ARM: 8334/1: amba: tegra-ahb: detect and correct bogus base address") checks for the low bit of the base address and removes theses 0x04 bytes at runtime. This patch fixes the original DTS, so upstream version doesn't need the workaround of the base address. As both addresses are valid, this patch doesn't break compatibility. Tested on tegra20-paz00 (aka ac100). Signed-off-by: Nicolas Chauvet Reviewed-by: Paul Walmsley Signed-off-by: Thierry Reding --- arch/arm/boot/dts/tegra114.dtsi | 4 ++-- arch/arm/boot/dts/tegra20.dtsi | 4 ++-- arch/arm/boot/dts/tegra30.dtsi | 4 ++-- 3 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi index f58a3d9d5f13..4bdf8f941c61 100644 --- a/arch/arm/boot/dts/tegra114.dtsi +++ b/arch/arm/boot/dts/tegra114.dtsi @@ -214,9 +214,9 @@ #dma-cells = <1>; }; - ahb: ahb@6000c004 { + ahb: ahb@6000c000 { compatible = "nvidia,tegra114-ahb", "nvidia,tegra30-ahb"; - reg = <0x6000c004 0x14c>; + reg = <0x6000c000 0x150>; }; gpio: gpio@6000d000 { diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index f444b67f55c6..f6f1461a7cde 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -225,9 +225,9 @@ #dma-cells = <1>; }; - ahb@6000c004 { + ahb@6000c000 { compatible = "nvidia,tegra20-ahb"; - reg = <0x6000c004 0x10c>; /* AHB Arbitration + Gizmo Controller */ + reg = <0x6000c000 0x110>; /* AHB Arbitration + Gizmo Controller */ }; gpio: gpio@6000d000 { diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi index 782b11b2af6a..559763e00caa 100644 --- a/arch/arm/boot/dts/tegra30.dtsi +++ b/arch/arm/boot/dts/tegra30.dtsi @@ -329,9 +329,9 @@ #dma-cells = <1>; }; - ahb: ahb@6000c004 { + ahb: ahb@6000c000 { compatible = "nvidia,tegra30-ahb"; - reg = <0x6000c004 0x14c>; /* AHB Arbitration + Gizmo Controller */ + reg = <0x6000c000 0x150>; /* AHB Arbitration + Gizmo Controller */ }; gpio: gpio@6000d000 { -- 2.20.1