arm64: dts: exynos: add minimal support for exynosautov9 sadk board

SADK(Samsung Automotive Development Kit) is the development kit to
evaluate Exynos Auto v9 SoC. It has 16GB LPDDR4 DRAM and two
256GB Samsung UFS. This patch enables only serial console and ufs0
device.

Signed-off-by: Chanho Park <chanho61.park@samsung.com>
Link: https://lore.kernel.org/r/20211012002314.38965-4-chanho61.park@samsung.com
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

diff --git a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
index 0796f0c87727b5ad295031e5b907ccd02df1f7fc..ef6dc14be4b5d434d30ed9288ce983fec6d92401 100644 (file)
--- a/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
+++ b/Documentation/devicetree/bindings/arm/samsung/samsung-boards.yaml
@@ -199,6 +199,12 @@ properties:
               - samsung,exynos7-espresso        # Samsung Exynos7 Espresso
           - const: samsung,exynos7
 
+      - description: Exynos Auto v9 based boards
+        items:
+          - enum:
+              - samsung,exynosautov9-sadk   # Samsung Exynos Auto v9 SADK
+          - const: samsung,exynosautov9
+
 required:
   - compatible
 

diff --git a/arch/arm64/boot/dts/exynos/Makefile b/arch/arm64/boot/dts/exynos/Makefile
index e0a2facde6a2e3edce32896fcfcce55f59126f6a..b41e86df0a84b48ff5515fea985fb999032a68f1 100644 (file)
--- a/arch/arm64/boot/dts/exynos/Makefile
+++ b/arch/arm64/boot/dts/exynos/Makefile
@@ -2,4 +2,5 @@
 dtb-$(CONFIG_ARCH_EXYNOS) += \
        exynos5433-tm2.dtb      \
        exynos5433-tm2e.dtb     \
-       exynos7-espresso.dtb
+       exynos7-espresso.dtb    \
+       exynosautov9-sadk.dtb

diff --git a/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
new file mode 100644 (file)
index 0000000..ef46d7a
--- /dev/null
+++ b/arch/arm64/boot/dts/exynos/exynosautov9-sadk.dts
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Samsung ExynosAutov9 SADK board device tree source
+ *
+ * Copyright (c) 2021 Samsung Electronics Co., Ltd.
+ *
+ */
+
+/dts-v1/;
+#include "exynosautov9.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+       model = "Samsung ExynosAuto v9 SADK board";
+       compatible = "samsung,exynosautov9-sadk", "samsung,exynosautov9";
+
+       #address-cells = <2>;
+       #size-cells = <2>;
+
+       aliases {
+               serial0 = &serial_0;
+       };
+
+       chosen {
+               stdout-path = &serial_0;
+       };
+
+       memory@80000000 {
+               device_type = "memory";
+               reg = <0x0 0x80000000 0x0 0x77000000>,
+                     <0x8 0x80000000 0x1 0x7ba00000>,
+                     <0xa 0x00000000 0x2 0x00000000>;
+       };
+
+       ufs_0_fixed_vcc_reg: regulator-0 {
+               compatible = "regulator-fixed";
+               regulator-name = "ufs-vcc";
+               gpio = <&gpq0 1 GPIO_ACTIVE_HIGH>;
+               regulator-boot-on;
+               enable-active-high;
+       };
+};
+
+&serial_0 {
+       status = "okay";
+};
+
+&ufs_0_phy {
+       status = "okay";
+};
+
+&ufs_0 {
+       status = "okay";
+       vcc-supply = <&ufs_0_fixed_vcc_reg>;
+       vcc-fixed-regulator;
+};