HSDK board has built-in Vivante GPU IP which works perfectly fine
with Etnaviv driver, so let's use it.

Signed-off-by: Eugeniy Paltsev <eugeniy.palt...@synopsys.com>
---
Changes v1->v2:
 * Add clock inputs to etnaviv device tree node (reported by Lucas Stach)

 arch/arc/boot/dts/hsdk.dts      | 29 +++++++++++++++++++++++++++++
 arch/arc/configs/hsdk_defconfig |  2 +-
 2 files changed, 30 insertions(+), 1 deletion(-)

diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts
index 43f17b51ee89..df86d0818db8 100644
--- a/arch/arc/boot/dts/hsdk.dts
+++ b/arch/arc/boot/dts/hsdk.dts
@@ -167,6 +167,24 @@
                        #clock-cells = <0>;
                };
 
+               gpu_core_clk: gpu-core-clk {
+                       compatible = "fixed-clock";
+                       clock-frequency = <400000000>;
+                       #clock-cells = <0>;
+               };
+
+               gpu_dma_clk: gpu-dma-clk {
+                       compatible = "fixed-clock";
+                       clock-frequency = <400000000>;
+                       #clock-cells = <0>;
+               };
+
+               gpu_cfg_clk: gpu-cfg-clk {
+                       compatible = "fixed-clock";
+                       clock-frequency = <200000000>;
+                       #clock-cells = <0>;
+               };
+
                gmac: ethernet@8000 {
                        #interrupt-cells = <1>;
                        compatible = "snps,dwmac";
@@ -237,6 +255,17 @@
                                reg = <0>;
                        };
                };
+
+               gpu_3d: gpu@90000 {
+                       compatible = "vivante,gc";
+                       reg = <0x90000 0x4000>;
+                       clocks = <&gpu_dma_clk>,
+                                <&gpu_cfg_clk>,
+                                <&gpu_core_clk>,
+                                <&gpu_core_clk>;
+                       clock-names = "bus", "reg", "core", "shader";
+                       interrupts = <28>;
+               };
        };
 
        memory@80000000 {
diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig
index 87b23b7fb781..915e1cca31f8 100644
--- a/arch/arc/configs/hsdk_defconfig
+++ b/arch/arc/configs/hsdk_defconfig
@@ -52,6 +52,7 @@ CONFIG_GPIO_DWAPB=y
 CONFIG_DRM=y
 # CONFIG_DRM_FBDEV_EMULATION is not set
 CONFIG_DRM_UDL=y
+CONFIG_DRM_ETNAVIV=y
 CONFIG_FB=y
 CONFIG_FRAMEBUFFER_CONSOLE=y
 CONFIG_USB_EHCI_HCD=y
@@ -63,7 +64,6 @@ CONFIG_MMC=y
 CONFIG_MMC_SDHCI=y
 CONFIG_MMC_SDHCI_PLTFM=y
 CONFIG_MMC_DW=y
-# CONFIG_IOMMU_SUPPORT is not set
 CONFIG_EXT3_FS=y
 CONFIG_VFAT_FS=y
 CONFIG_TMPFS=y
-- 
2.14.5


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