Doing so saves quite a bit of code in the driver.
For more information on the 'reserved-memory' bindings see:
Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
Suggested-by: Suman Anna <s-anna@xxxxxx>
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
---
arch/arm/boot/dts/stih407-family.dtsi | 46 +++++++++++++++++++++++++++++------
1 file changed, 38 insertions(+), 8 deletions(-)
diff --git a/arch/arm/boot/dts/stih407-family.dtsi b/arch/arm/boot/dts/stih407-family.dtsi
index 15c20b6..27b8efc 100644
--- a/arch/arm/boot/dts/stih407-family.dtsi
+++ b/arch/arm/boot/dts/stih407-family.dtsi
@@ -15,6 +15,36 @@
#address-cells = <1>;
#size-cells = <1>;
+ reserved-memory {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ gp0_reserved: rproc@40000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x40000000 0x01000000>;
+ no-map;
+ };
+
+ gp1_reserved: rproc@41000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x41000000 0x01000000>;
+ no-map;
+ };
+
+ audio_reserved: rproc@42000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x42000000 0x01000000>;
+ no-map;
+ };
+
+ dmu_reserved: rproc@43000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x43000000 0x01000000>;
+ no-map;
+ };
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -651,9 +681,9 @@
status = "okay";
};
- st231_gp0: st231-gp0@40000000 {
+ st231_gp0: st231-gp0 {
compatible = "st,st231-rproc";
- reg = <0x40000000 0x01000000>;
+ memory-region = <&gp0_reserved>;
resets = <&softreset STIH407_ST231_GP0_SOFTRESET>;
reset-names = "sw_reset";
clocks = <&clk_s_c0_flexgen CLK_ST231_GP_0>;
@@ -661,9 +691,9 @@
st,syscfg = <&syscfg_core 0x22c>;
};
- st231_gp1: st231-gp1@41000000 {
+ st231_gp1: st231-gp1 {
compatible = "st,st231-rproc";
- reg = <0x41000000 0x01000000>;
+ memory-region = <&gp1_reserved>;
resets = <&softreset STIH407_ST231_GP1_SOFTRESET>;
reset-names = "sw_reset";
clocks = <&clk_s_c0_flexgen CLK_ST231_GP_1>;
@@ -671,9 +701,9 @@
st,syscfg = <&syscfg_core 0x220>;
};
- st231_audio: st231-audio@42000000 {
+ st231_audio: st231-audio {
compatible = "st,st231-rproc";
- reg = <0x42000000 0x01000000>;
+ memory-region = <&audio_reserved>;
resets = <&softreset STIH407_ST231_AUD_SOFTRESET>;
reset-names = "sw_reset";
clocks = <&clk_s_c0_flexgen CLK_ST231_AUD_0>;
@@ -681,9 +711,9 @@
st,syscfg = <&syscfg_core 0x228>;
};
- st231_dmu: st231-dmu@43000000 {
+ st231_dmu: st231-dmu {
compatible = "st,st231-rproc";
- reg = <0x43000000 0x01000000>;
+ memory-region = <&dmu_reserved>;
resets = <&softreset STIH407_ST231_DMU_SOFTRESET>;
reset-names = "sw_reset";
clocks = <&clk_s_c0_flexgen CLK_ST231_DMU>;
--
1.9.1
--
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