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ARM: u300: add the COH 901 318 DMAC to device tree 

This adds the COH 901 318 DMA controller to the U300
device tree. All devices now converted to device tree
so far will start to find their DMA channels.

Note that the U300 is not yet using the device tree
to obtain DMA channels, but this is a first step.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2013-04-19 13:44:25 +02:00
parent efb9bc2ea0
commit 39738cc96b
2 changed files with 11 additions and 0 deletions
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9
arch/arm/boot/dts/ste-u300.dts
View File

@ -68,6 +68,15 @@ rtc: rtc@c0017000 {
interrupts = <10>; interrupts = <10>;
}; };
dmac: dma-controller@c00020000 {
compatible = "stericsson,coh901318";
reg = <0xc0020000 0x1000>;
interrupt-parent = <&vica>;
interrupts = <2>;
#dma-cells = <1>;
dma-channels = <40>;
};
i2c0: i2c@c0004000 { i2c0: i2c@c0004000 {
compatible = "st,ddci2c"; compatible = "st,ddci2c";
reg = <0xc0004000 0x1000>; reg = <0xc0004000 0x1000>;

2
arch/arm/mach-u300/core.c
View File

@ -714,6 +714,8 @@ static struct of_dev_auxdata u300_auxdata_lookup[] __initdata = {
"coh901327_wdog", NULL), "coh901327_wdog", NULL),
OF_DEV_AUXDATA("stericsson,coh901331", U300_RTC_BASE, OF_DEV_AUXDATA("stericsson,coh901331", U300_RTC_BASE,
"rtc-coh901331", NULL), "rtc-coh901331", NULL),
OF_DEV_AUXDATA("stericsson,coh901318", U300_DMAC_BASE,
"coh901318", NULL),
OF_DEV_AUXDATA("arm,primecell", U300_UART0_BASE, OF_DEV_AUXDATA("arm,primecell", U300_UART0_BASE,
"uart0", &uart0_plat_data), "uart0", &uart0_plat_data),
OF_DEV_AUXDATA("arm,primecell", U300_UART1_BASE, OF_DEV_AUXDATA("arm,primecell", U300_UART1_BASE,