Messages in this thread | | | Date | Mon, 18 May 2020 09:50:17 +0200 | From | Thomas Bogendoerfer <> | Subject | Re: [PATCH v2] MIPS: Loongson: Enable devicetree based probing for 8250 ports in defconfig |
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On Mon, May 18, 2020 at 10:11:01AM +0800, Tiezhu Yang wrote: > After commit 87fcfa7b7fe6 ("MIPS: Loongson64: Add generic dts"), > there already exists the node and property of Loongson CPU UART0 > in loongson3-package.dtsi: > > cpu_uart0: serial@1fe001e0 { > compatible = "ns16550a"; > reg = <0 0x1fe001e0 0x8>; > clock-frequency = <33000000>; > interrupt-parent = <&liointc>; > interrupts = <10 IRQ_TYPE_LEVEL_HIGH>; > no-loopback-test; > }; > > In order to support for serial console on the Loongson platform, > add CONFIG_SERIAL_OF_PLATFORM=y to loongson3_defconfig. > > With this patch, we can see the following boot messages: > > [ 1.877745] printk: console [ttyS0] disabled > [ 1.881979] 1fe001e0.serial: ttyS0 at MMIO 0x1fe001e0 (irq = 16, base_baud = 2062500) is a 16550A > [ 1.890838] printk: console [ttyS0] enabled > > And also, we can login normally from the serial console. > > Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> > Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> > --- > > v2: > - Modify the patch subject > > arch/mips/configs/loongson3_defconfig | 1 + > 1 file changed, 1 insertion(+)
applied to mips-next.
Thomas.
-- Crap can work. Given enough thrust pigs will fly, but it's not necessarily a good idea. [ RFC1925, 2.3 ]
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