ARM: tegra: Add Memory Client resets to Tegra20 GR2D, GR3D and Host1x

Memory access must be blocked before hardware reset is asserted and before
power is gated, otherwise a serious hardware fault is inevitable. Add
reset for memory clients to the GR2D, GR3D and Host1x nodes.

Tested-by: Paul Fertser <fercerpav@gmail.com> # PAZ00 T20
Tested-by: Nicolas Chauvet <kwizart@gmail.com> # PAZ00 T20
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 45fe111..4068952 100644 (file)
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -40,8 +40,8 @@
                interrupt-names = "syncpt", "host1x";
                clocks = <&tegra_car TEGRA20_CLK_HOST1X>;
                clock-names = "host1x";
-               resets = <&tegra_car 28>;
-               reset-names = "host1x";
+               resets = <&tegra_car 28>, <&mc TEGRA20_MC_RESET_HC>;
+               reset-names = "host1x", "mc";
                power-domains = <&pd_core>;
                operating-points-v2 = <&host1x_dvfs_opp_table>;
 
@@ -98,8 +98,8 @@
                        reg = <0x54140000 0x00040000>;
                        interrupts = <GIC_SPI 72 IRQ_TYPE_LEVEL_HIGH>;
                        clocks = <&tegra_car TEGRA20_CLK_GR2D>;
-                       resets = <&tegra_car 21>;
-                       reset-names = "2d";
+                       resets = <&tegra_car 21>, <&mc TEGRA20_MC_RESET_2D>;
+                       reset-names = "2d", "mc";
                        power-domains = <&pd_core>;
                        operating-points-v2 = <&gr2d_dvfs_opp_table>;
                };
@@ -108,8 +108,8 @@
                        compatible = "nvidia,tegra20-gr3d";
                        reg = <0x54180000 0x00040000>;
                        clocks = <&tegra_car TEGRA20_CLK_GR3D>;
-                       resets = <&tegra_car 24>;
-                       reset-names = "3d";
+                       resets = <&tegra_car 24>, <&mc TEGRA20_MC_RESET_3D>;
+                       reset-names = "3d", "mc";
                        power-domains = <&pd_3d>;
                        operating-points-v2 = <&gr3d_dvfs_opp_table>;
                };