ARM: dts: sun4i: Add A10 SRAM and SRAM controller

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@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>

diff --git a/arch/arm/boot/dts/sun4i-a10-a1000.dts b/arch/arm/boot/dts/sun4i-a10-a1000.dts
index 8d220ba..2630d78 100644 (file)
--- 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 c7b0ba0..93d4356 100644 (file)
--- 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 1708110..9afb4e0 100644 (file)
--- 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 6b944db..2b17c51 100644 (file)
--- 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 483ddee..dc2f2ae 100644 (file)
--- 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 0bc9501..02158bc 100644 (file)
--- 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 31b95fc..b64aa4e 100644 (file)
--- 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 52c1777..4e3e1b9 100644 (file)
--- 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 d7f43e5..61c03d1 100644 (file)
--- 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";
                };