[PATCH u-boot v2019.04-aspeed-openbmc v2] ARM: dts: aspeed: add Delta AHE-50DC BMC

[Zev Weiss <zev@bewilderbeest.net>]

The Delta AHE-50DC Open19 power shelf uses a pair of AST1250 BMCs that
are mostly compatible with the existing ast2400-evb device tree, with
a couple small tweaks for the serial console UART and ethernet MACs.

Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
---

Changes since v1 [0]:
 - Disabled spi1, which this system doesn't use [Joel]

[0] https://lore.kernel.org/openbmc/20220414210045.26480-1-zev@bewilderbeest.net/

 arch/arm/dts/Makefile             |  1 +
 arch/arm/dts/ast2400-ahe-50dc.dts | 38 +++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 arch/arm/dts/ast2400-ahe-50dc.dts

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index a79f885f54fb..3515100c65ce 100755
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -676,6 +676,7 @@ dtb-$(CONFIG_ARCH_BCM6858) += \
 
 dtb-$(CONFIG_ARCH_ASPEED) += \
 	ast2400-evb.dtb \
+	ast2400-ahe-50dc.dtb \
 	ast2500-evb.dtb \
 	ast2600a0-evb.dtb \
 	ast2600a1-evb.dtb \
diff --git a/arch/arm/dts/ast2400-ahe-50dc.dts b/arch/arm/dts/ast2400-ahe-50dc.dts
new file mode 100644
index 000000000000..d5e6f1989586
--- /dev/null
+++ b/arch/arm/dts/ast2400-ahe-50dc.dts
@@ -0,0 +1,38 @@
+/dts-v1/;
+
+#include "ast2400-evb.dts"
+
+/ {
+	model = "Delta AHE-50DC BMC";
+	compatible = "delta,ahe-50dc-bmc", "aspeed,ast2400-evb", "aspeed,ast2400";
+
+	chosen {
+		stdout-path = &uart3;
+	};
+};
+
+&uart5 {
+	status = "disabled";
+};
+
+&uart3 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_txd3_default &pinctrl_rxd3_default>;
+};
+
+&mac0 {
+	status = "disabled";
+};
+
+&mac1 {
+	status = "okay";
+	phy-mode = "rgmii";
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_rgmii2_default &pinctrl_mdio2_default>;
+};
+
+&spi1 {
+	status = "disabled";
+};
-- 
2.35.3