[PATCH v14 37/39] ARM: tegra: Add Memory Client resets to Tegra20 GR2D, GR3D and Host1x

Dmitry Osipenko
2021-10-25T22:49:41Z

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>
---
arch/arm/boot/dts/tegra20.dtsi | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 1898351a099f..7b69ffc57abe 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -40,8 +40,8 @@ host1x@50000000 {
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 @@ gr2d@54140000 {
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 @@ gr3d@54180000 {
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>;
};
--
2.33.1