Enable Vivante GPU driver for stm32mp157c-ed1 board.

Signed-off-by: Pierre-Yves MORDRET <pierre-yves.mord...@st.com>
---
  Version history:
    v2:
       * move GPU reserved memeory out of bottom DDR to let free this area for
         U-Boot
    v1:
       * Initial
---
---
 arch/arm/boot/dts/stm32mp157c-ed1.dts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm/boot/dts/stm32mp157c-ed1.dts 
b/arch/arm/boot/dts/stm32mp157c-ed1.dts
index 9fd7943..7bcc122 100644
--- a/arch/arm/boot/dts/stm32mp157c-ed1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ed1.dts
@@ -22,6 +22,17 @@
                reg = <0xC0000000 0x40000000>;
        };
 
+       reserved-memory {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               ranges;
+
+               gpu_reserved: gpu@e8000000 {
+                       reg = <0xe8000000 0x8000000>;
+                       no-map;
+               };
+       };
+
        aliases {
                serial0 = &uart4;
        };
@@ -76,6 +87,11 @@
        status = "okay";
 };
 
+&gpu {
+       contiguous-area = <&gpu_reserved>;
+       status = "okay";
+};
+
 &i2c4 {
        pinctrl-names = "default";
        pinctrl-0 = <&i2c4_pins_a>;
-- 
2.7.4

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