The A10 has a few SRAM that can be mapped either to a device or to the CPU,
with the mapping being controlled by a SRAM controller.
Add the SRAM controller, the SRAM that it drives and the section that can
be used by the various devices.
Signed-off-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxxxxxxxxx>
---
arch/arm/boot/dts/sun4i-a10-a1000.dts | 4 +++
arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts | 4 +++
arch/arm/boot/dts/sun4i-a10-cubieboard.dts | 4 +++
arch/arm/boot/dts/sun4i-a10-hackberry.dts | 4 +++
arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts | 4 +++
arch/arm/boot/dts/sun4i-a10-marsboard.dts | 4 +++
arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts | 4 +++
arch/arm/boot/dts/sun4i-a10-pcduino.dts | 4 +++
arch/arm/boot/dts/sun4i-a10.dtsi | 37 ++++++++++++++++++++++++++
9 files changed, 69 insertions(+)
diff --git a/arch/arm/boot/dts/sun4i-a10-a1000.dts b/arch/arm/boot/dts/sun4i-a10-a1000.dts
index 8d220ba7f899..2630d78d9e04 100644
--- a/arch/arm/boot/dts/sun4i-a10-a1000.dts
+++ b/arch/arm/boot/dts/sun4i-a10-a1000.dts
@@ -108,6 +108,10 @@
status = "okay";
};
+&emac_sram {
+ status = "okay";
+};
+
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins_a>;
diff --git a/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts b/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
index c7b0ba0cf416..93d435670ef1 100644
--- a/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
+++ b/arch/arm/boot/dts/sun4i-a10-ba10-tvbox.dts
@@ -74,6 +74,10 @@
status = "okay";
};
+&emac_sram {
+ status = "okay";
+};
+
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins_a>;
diff --git a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
index 170811088fae..9afb4e018593 100644
--- a/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
+++ b/arch/arm/boot/dts/sun4i-a10-cubieboard.dts
@@ -102,6 +102,10 @@
status = "okay";
};
+&emac_sram {
+ status = "okay";
+};
+
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins_a>;
diff --git a/arch/arm/boot/dts/sun4i-a10-hackberry.dts b/arch/arm/boot/dts/sun4i-a10-hackberry.dts
index 6b944db678c8..2b17c5199151 100644
--- a/arch/arm/boot/dts/sun4i-a10-hackberry.dts
+++ b/arch/arm/boot/dts/sun4i-a10-hackberry.dts
@@ -86,6 +86,10 @@
status = "okay";
};
+&emac_sram {
+ status = "okay";
+};
+
&ir0 {
pinctrl-names = "default";
pinctrl-0 = <&ir0_rx_pins_a>;
diff --git a/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts b/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
index 483ddee1e384..dc2f2aeaff07 100644
--- a/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
+++ b/arch/arm/boot/dts/sun4i-a10-jesurun-q5.dts
@@ -104,6 +104,10 @@
status = "okay";
};
+&emac_sram {
+ status = "okay";
+};
+
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins_a>;
diff --git a/arch/arm/boot/dts/sun4i-a10-marsboard.dts b/arch/arm/boot/dts/sun4i-a10-marsboard.dts
index 0bc950169943..02158bcd64ee 100644
--- a/arch/arm/boot/dts/sun4i-a10-marsboard.dts
+++ b/arch/arm/boot/dts/sun4i-a10-marsboard.dts
@@ -99,6 +99,10 @@
status = "okay";
};
+&emac_sram {
+ status = "okay";
+};
+
&emac {
pinctrl-names = "default";
pinctrl-0 = <&emac_pins_a>;
diff --git a/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts b/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
index 31b95fccfba1..b64aa4eb071e 100644
--- a/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
+++ b/arch/arm/boot/dts/sun4i-a10-olinuxino-lime.dts
@@ -105,6 +105,10 @@
status = "okay";
};
+&emac_sram {
+ status = "okay";
+};
+
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins_a>;
diff --git a/arch/arm/boot/dts/sun4i-a10-pcduino.dts b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
index 52c1777ff239..4e3e1b9d8217 100644
--- a/arch/arm/boot/dts/sun4i-a10-pcduino.dts
+++ b/arch/arm/boot/dts/sun4i-a10-pcduino.dts
@@ -119,6 +119,10 @@
status = "okay";
};
+&emac_sram {
+ status = "okay";
+};
+
&i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins_a>;
diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi
index d7f43e5caf49..61c03d1fe530 100644
--- a/arch/arm/boot/dts/sun4i-a10.dtsi
+++ b/arch/arm/boot/dts/sun4i-a10.dtsi
@@ -454,6 +454,42 @@
#size-cells = <1>;
ranges;
+ sram-controller@01c00000 {
+ compatible = "allwinner,sun4i-a10-sram-controller";
+ reg = <0x01c00000 0x30>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ sram_a: sram@00000000 {
+ compatible = "mmio-sram";
+ reg = <0x00000000 0xc000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x00000000 0xc000>;
+
+ emac_sram: sram-section@8000 {
+ compatible = "allwinner,sun4i-a10-sram-a3-a4";
+ reg = <0x8000 0x4000>;
+ status = "disabled";
+ };
+ };
+
+ sram_d: sram@00010000 {
+ compatible = "mmio-sram";
+ reg = <0x00010000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0x00010000 0x1000>;
+
+ otg_sram: sram-section@0000 {
+ compatible = "allwinner,sun4i-a10-sram-d";
+ reg = <0x0000 0x1000>;
+ status = "disabled";
+ };
+ };
+ };
+
dma: dma-controller@01c02000 {
compatible = "allwinner,sun4i-a10-dma";
reg = <0x01c02000 0x1000>;
@@ -495,6 +531,7 @@
reg = <0x01c0b000 0x1000>;
interrupts = <55>;
clocks = <&ahb_gates 17>;
+ allwinner,sram = <&emac_sram 1>;
status = "disabled";
};
--
2.4.1
--
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