diff options
| author | Maxime Ripard | 2015-03-26 15:53:44 +0100 |
|---|---|---|
| committer | Maxime Ripard | 2015-06-01 11:13:27 +0200 |
| commit | 0eb14a8dad7d586df1e15702cb76f87a374a88b7 (patch) | |
| tree | d180a8c31bf6262cfae41709d8c2578d4aa70e77 | |
| parent | 00f69ba94d39cb3f1804dbb6769768d070336ab3 (diff) | |
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>
| -rw-r--r-- | arch/arm/boot/dts/sun7i-a20.dtsi | 37 |
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"; }; |