The AM65 SoC has 2MB MSMC RAM. Add this as a mmio-sram
node so drivers can use it via genpool API.
Following areas are marked reserved:
- Lower 128KB for ATF
- 64KB@0xf0000 for SYSFW
- Upper 1MB for cache
The reserved locations are subject to change at runtime by
the bootloader.
Cc: Nishanth Menon <nm@xxxxxx>
Cc: Lokesh Vutla <lokeshvutla@xxxxxx>
Cc: Andrew F. Davis <afd@xxxxxx>
Signed-off-by: Roger Quadros <rogerq@xxxxxx>
---
arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index 272cf8f..5a18150 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -6,6 +6,26 @@
*/
&cbass_main {
+ msmc_ram: sram@70000000 {
+ compatible = "mmio-sram";
+ reg = <0x0 0x70000000 0x0 0x200000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0x0 0x0 0x70000000 0x200000>;
+
+ atf-sram@0 {
+ reg = <0x0 0x20000>;
+ };
+
+ sysfw-sram@f0000 {
+ reg = <0xf0000 0x10000>;
+ };
+
+ l3cache-sram@100000 {
+ reg = <0x100000 0x100000>;
+ };
+ };
+
gic500: interrupt-controller@1800000 {
compatible = "arm,gic-v3";
#address-cells = <2>;
--
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