ARM: dts: sun5i: Add A10s and A13 SRAM and SRAM controller

The A10s and A13 have 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/sun5i-a10s-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
index 556b2027bbafd0c33fb234b11e2ad33b29113e22..a7e19e4847f75d60050b71f219e17d80f29e5c19 100644 (file)
--- a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
+++ b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
@@ -88,6 +88,10 @@
        status = "okay";
 };
 
+&emac_sram {
+       status = "okay";
+};
+
 &i2c0 {
        pinctrl-names = "default";
        pinctrl-0 = <&i2c0_pins_a>;

diff --git a/arch/arm/boot/dts/sun5i-a10s.dtsi b/arch/arm/boot/dts/sun5i-a10s.dtsi
index 934ecfd145c452be23a711d02ad804812d994eb4..f11efb722bbb025cc7f0d5b7b22524e3bc060c45 100644 (file)
--- a/arch/arm/boot/dts/sun5i-a10s.dtsi
+++ b/arch/arm/boot/dts/sun5i-a10s.dtsi
@@ -125,6 +125,7 @@
                        reg = <0x01c0b000 0x1000>;
                        interrupts = <55>;
                        clocks = <&ahb_gates 17>;
+                       allwinner,sram = <&emac_sram 1>;
                        status = "disabled";
                };
 
@@ -201,3 +202,11 @@
                allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
        };
 };
+
+&sram_a {
+       emac_sram: sram-section@8000 {
+               compatible = "allwinner,sun4i-a10-sram-a3-a4";
+               reg = <0x8000 0x4000>;
+               status = "disabled";
+       };
+};

diff --git a/arch/arm/boot/dts/sun5i.dtsi b/arch/arm/boot/dts/sun5i.dtsi
index 26095aa97ada4b7dcc53a09f4c85d53f51a7f2b3..54b0978304344104d94d7d4e79a3117986563204 100644 (file)
--- a/arch/arm/boot/dts/sun5i.dtsi
+++ b/arch/arm/boot/dts/sun5i.dtsi
@@ -299,6 +299,36 @@
                #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>;
+                       };
+
+                       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>;