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ARM: sunxi: Use the Synosys APB UART instead of ns8250 

The UART controller used in the A10/A13 is the Synopsys DesignWare 8250.
The wrong use of a regular 8250 driver may lead to a oops during kernel
boot with "irq 17: nobody cared", because the apb UART as an extra
interrupt that gets raised when writing to the LCR when busy.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
This commit is contained in:
Maxime Ripard 2013-01-14 19:53:54 +01:00
parent 43880f709d
commit 1bea07f16d
1 changed files with 4 additions and 2 deletions
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6
arch/arm/boot/dts/sunxi.dtsi
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@ -60,19 +60,21 @@
}; };
uart0: uart@01c28000 { uart0: uart@01c28000 {
compatible = "ns8250"; compatible = "snps,dw-apb-uart";
reg = <0x01c28000 0x400>; reg = <0x01c28000 0x400>;
interrupts = <1>; interrupts = <1>;
reg-shift = <2>; reg-shift = <2>;
reg-io-width = <4>;
clock-frequency = <24000000>; clock-frequency = <24000000>;
status = "disabled"; status = "disabled";
}; };
uart1: uart@01c28400 { uart1: uart@01c28400 {
compatible = "ns8250"; compatible = "snps,dw-apb-uart";
reg = <0x01c28400 0x400>; reg = <0x01c28400 0x400>;
interrupts = <2>; interrupts = <2>;
reg-shift = <2>; reg-shift = <2>;
reg-io-width = <4>;
clock-frequency = <24000000>; clock-frequency = <24000000>;
status = "disabled"; status = "disabled";
}; };