[PATCH v3 3/4] ARM: dts: sun5i: Add A10s and A13 SRAM and SRAM controller
DORMANTno replies
From: Maxime Ripard <hidden>
Date: 2015-05-31 09:15:07
Also in:
linux-devicetree
Subsystem:
the rest · Maintainer:
Linus Torvalds
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 <redacted> --- arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts | 4 ++++ arch/arm/boot/dts/sun5i-a10s.dtsi | 9 +++++++ arch/arm/boot/dts/sun5i.dtsi | 30 ++++++++++++++++++++++++ 3 files changed, 43 insertions(+)
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 at 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 at 01c00000 { + compatible = "allwinner,sun4i-a10-sram-controller"; + reg = <0x01c00000 0x30>; + #address-cells = <1>; + #size-cells = <1>; + ranges; + + sram_a: sram at 00000000 { + compatible = "mmio-sram"; + reg = <0x00000000 0xc000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x00000000 0xc000>; + }; + + sram_d: sram at 00010000 { + compatible = "mmio-sram"; + reg = <0x00010000 0x1000>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x00010000 0x1000>; + + otg_sram: sram-section at 0000 { + compatible = "allwinner,sun4i-a10-sram-d"; + reg = <0x0000 0x1000>; + status = "disabled"; + }; + }; + }; + dma: dma-controller at 01c02000 { compatible = "allwinner,sun4i-a10-dma"; reg = <0x01c02000 0x1000>;
--
2.4.1