summaryrefslogtreecommitdiff
path: root/arch/arm/boot/dts/sun7i-a20.dtsi
diff options
context:
space:
mode:
authorMaxime Ripard <maxime.ripard@free-electrons.com>2015-03-26 17:53:44 +0300
committerMaxime Ripard <maxime.ripard@free-electrons.com>2015-06-01 12:13:27 +0300
commit0eb14a8dad7d586df1e15702cb76f87a374a88b7 (patch)
treed180a8c31bf6262cfae41709d8c2578d4aa70e77 /arch/arm/boot/dts/sun7i-a20.dtsi
parent00f69ba94d39cb3f1804dbb6769768d070336ab3 (diff)
downloadlinux-0eb14a8dad7d586df1e15702cb76f87a374a88b7.tar.xz
ARM: dts: sun7i: Add A20 SRAM and SRAM controller
The A20 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>
Diffstat (limited to 'arch/arm/boot/dts/sun7i-a20.dtsi')
-rw-r--r--arch/arm/boot/dts/sun7i-a20.dtsi37
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/sun7i-a20.dtsi b/arch/arm/boot/dts/sun7i-a20.dtsi
index 25bd4f1d393c..6a63f30c9a69 100644
--- a/arch/arm/boot/dts/sun7i-a20.dtsi
+++ b/arch/arm/boot/dts/sun7i-a20.dtsi
@@ -534,6 +534,42 @@
#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";
+ };
+ };
+ };
+
nmi_intc: interrupt-controller@01c00030 {
compatible = "allwinner,sun7i-a20-sc-nmi";
interrupt-controller;
@@ -583,6 +619,7 @@
reg = <0x01c0b000 0x1000>;
interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ahb_gates 17>;
+ allwinner,sram = <&emac_sram 1>;
status = "disabled";
};