arm64: dts: exynos: Revert "Remove unneeded address space mapping for soc node"

commit bed903167ae5b5532eda5d7db26de451bd232da5 upstream.

Commit ef72171b3621 ("arm64: dts: exynos: Remove unneeded address space
mapping for soc node") changed the address and size cells in root node from
2 to 1, but /memory nodes for the affected boards were not updated. This
went unnoticed on Exynos5433-based TM2(e) boards, because they use u-boot,
which updates /memory node to the correct values. On the other hand, the
mentioned commit broke boot on Exynos7-based Espresso board, which
bootloader doesn't touch /memory node at all.

This patch reverts commit ef72171b3621 ("arm64: dts: exynos: Remove
unneeded address space mapping for soc node"), so Exynos5433 and Exynos7
SoCs again matches other ARM64 platforms with 64bit mappings in root
node.

Reported-by: Alim Akhtar <alim.akhtar@samsung.com>
Fixes: ef72171b3621 ("arm64: dts: exynos: Remove unneeded address space mapping for soc node")
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: <stable@vger.kernel.org> # 5.3.x: 72ddcf6aa224 arm64: dts: exynos: Move GPU under /soc node for Exynos5433
Cc: <stable@vger.kernel.org> # 5.3.x: ede87c3a2bdb arm64: dts: exynos: Move GPU under /soc node for Exynos7
Cc: <stable@vger.kernel.org> # 4.18.x
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/arch/arm64/boot/dts/exynos/exynos5433.dtsi b/arch/arm64/boot/dts/exynos/exynos5433.dtsi
index a76f620..a5f8752 100644 (file)
--- a/arch/arm64/boot/dts/exynos/exynos5433.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos5433.dtsi
@@ -18,8 +18,8 @@
 
 / {
        compatible = "samsung,exynos5433";
-       #address-cells = <1>;
-       #size-cells = <1>;
+       #address-cells = <2>;
+       #size-cells = <2>;
 
        interrupt-parent = <&gic>;
 
@@ -311,7 +311,7 @@
                compatible = "simple-bus";
                #address-cells = <1>;
                #size-cells = <1>;
-               ranges;
+               ranges = <0x0 0x0 0x0 0x18000000>;
 
                chipid@10000000 {
                        compatible = "samsung,exynos4210-chipid";

diff --git a/arch/arm64/boot/dts/exynos/exynos7.dtsi b/arch/arm64/boot/dts/exynos/exynos7.dtsi
index bcb9d8c..0821489 100644 (file)
--- a/arch/arm64/boot/dts/exynos/exynos7.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos7.dtsi
@@ -12,8 +12,8 @@
 / {
        compatible = "samsung,exynos7";
        interrupt-parent = <&gic>;
-       #address-cells = <1>;
-       #size-cells = <1>;
+       #address-cells = <2>;
+       #size-cells = <2>;
 
        aliases {
                pinctrl0 = &pinctrl_alive;
@@ -98,7 +98,7 @@
                compatible = "simple-bus";
                #address-cells = <1>;
                #size-cells = <1>;
-               ranges;
+               ranges = <0 0 0 0x18000000>;
 
                chipid@10000000 {
                        compatible = "samsung,exynos4210-chipid";