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authorMaxime Ripard <maxime.ripard@free-electrons.com>2015-03-26 15:53:44 +0100
committerMaxime Ripard <maxime.ripard@free-electrons.com>2015-06-01 11:13:26 +0200
commit00f69ba94d39cb3f1804dbb6769768d070336ab3 (patch)
treea92d0639a83501250fc1fc14ff980fcec7eb9829
parent1fbc15175df040884cb58d73a8e4198f00891cd4 (diff)
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>
-rw-r--r--arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts4
-rw-r--r--arch/arm/boot/dts/sun5i-a10s.dtsi9
-rw-r--r--arch/arm/boot/dts/sun5i.dtsi30
3 files changed, 43 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts b/arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
index 556b2027bbaf..a7e19e4847f7 100644
--- 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 934ecfd145c4..f11efb722bbb 100644
--- 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 26095aa97ada..54b097830434 100644
--- 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>;