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

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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>
This commit is contained in:
Maxime Ripard 2015-03-26 15:53:44 +01:00
parent 1fbc15175d
commit 00f69ba94d
3 changed files with 43 additions and 0 deletions
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4
arch/arm/boot/dts/sun5i-a10s-olinuxino-micro.dts
View File

@ -88,6 +88,10 @@
status = "okay"; status = "okay";
}; };
&emac_sram {
status = "okay";
};
&i2c0 { &i2c0 {
pinctrl-names = "default"; pinctrl-names = "default";
pinctrl-0 = <&i2c0_pins_a>; pinctrl-0 = <&i2c0_pins_a>;

9
arch/arm/boot/dts/sun5i-a10s.dtsi
View File

@ -125,6 +125,7 @@
reg = <0x01c0b000 0x1000>; reg = <0x01c0b000 0x1000>;
interrupts = <55>; interrupts = <55>;
clocks = <&ahb_gates 17>; clocks = <&ahb_gates 17>;
allwinner,sram = <&emac_sram 1>;
status = "disabled"; status = "disabled";
}; };
@ -201,3 +202,11 @@
allwinner,pull = <SUN4I_PINCTRL_NO_PULL>; 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";
};
};

30
arch/arm/boot/dts/sun5i.dtsi
View File

@ -299,6 +299,36 @@
#size-cells = <1>; #size-cells = <1>;
ranges; 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 { dma: dma-controller@01c02000 {
compatible = "allwinner,sun4i-a10-dma"; compatible = "allwinner,sun4i-a10-dma";
reg = <0x01c02000 0x1000>; reg = <0x01c02000 0x1000>;