airoha: Add initial support for Airoha AN7581 SoC
Add initial support for Airoha AN7581 SoC. This adds the initial Kconfig
and Makefile entry for the SoC, an U-Boot specific DTSI and initial config
for it. Also add the initial code for CPU and RAM initialization.
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
diff --git a/arch/arm/dts/an7581-u-boot.dtsi b/arch/arm/dts/an7581-u-boot.dtsi
new file mode 100644
index 0000000..0316b73
--- /dev/null
+++ b/arch/arm/dts/an7581-u-boot.dtsi
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/ {
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ atf-reserved-memory@80000000 {
+ no-map;
+ reg = <0x0 0x80000000 0x0 0x40000>;
+ };
+ };
+};
+
+&uart1 {
+ bootph-all;
+};
diff --git a/arch/arm/dts/en7581-evb-u-boot.dtsi b/arch/arm/dts/en7581-evb-u-boot.dtsi
new file mode 100644
index 0000000..ebd3b8b
--- /dev/null
+++ b/arch/arm/dts/en7581-evb-u-boot.dtsi
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0+
+
+/ {
+ /* When running as a first-stage bootloader this isn't filled in automatically */
+ memory@80000000 {
+ device_type = "memory";
+ reg = <0x0 0x80000000 0x0 0x20000000>;
+ };
+};
+
+#include "an7581-u-boot.dtsi"