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ARM: sunxi: Add sun4i and cubieboard support

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This patch adds support for the Cubieboard based on the Allwinner
A10/sun4i SoC. Currently only UART is supported. Other devices
will eventually follow.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Stefan Roese 2012-11-19 12:09:42 +01:00 committed by Maxime Ripard
parent aa25115aff
commit f055f1f682
4 changed files with 50 additions and 1 deletions
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3
arch/arm/boot/dts/Makefile
View File

@ -84,7 +84,8 @@ dtb-$(CONFIG_ARCH_SPEAR3XX)+= spear300-evb.dtb \
spear310-evb.dtb \
spear320-evb.dtb
dtb-$(CONFIG_ARCH_SPEAR6XX)+= spear600-evb.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun5i-olinuxino.dtb
dtb-$(CONFIG_ARCH_SUNXI) += sun4i-cubieboard.dtb \
sun5i-olinuxino.dtb
dtb-$(CONFIG_ARCH_TEGRA) += tegra20-harmony.dtb \
tegra20-medcom-wide.dtb \
tegra20-paz00.dtb \

38
arch/arm/boot/dts/sun4i-cubieboard.dts Normal file
View File

@ -0,0 +1,38 @@
/*
* Copyright 2012 Stefan Roese
* Stefan Roese <sr@denx.de>
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
/dts-v1/;
/include/ "sun4i.dtsi"
/ {
model = "Cubietech Cubieboard";
compatible = "cubietech,cubieboard", "allwinner,sun4i";
aliases {
serial0 = &uart0;
serial1 = &uart1;
};
chosen {
bootargs = "earlyprintk console=ttyS0,115200";
};
soc {
uart0: uart@01c28000 {
status = "okay";
};
uart1: uart@01c28400 {
status = "okay";
};
};
};

9
arch/arm/boot/dts/sunxi.dtsi
View File

@ -54,6 +54,15 @@
#interrupt-cells = <1>;
};
uart0: uart@01c28000 {
compatible = "ns8250";
reg = <0x01c28000 0x400>;
interrupts = <1>;
reg-shift = <2>;
clock-frequency = <24000000>;
status = "disabled";
};
uart1: uart@01c28400 {
compatible = "ns8250";
reg = <0x01c28400 0x400>;

1
arch/arm/mach-sunxi/sunxi.c
View File

@ -46,6 +46,7 @@ static void __init sunxi_dt_init(void)
}
static const char * const sunxi_board_dt_compat[] = {
"allwinner,sun4i",
"allwinner,sun5i",
NULL,
};