| Message ID | 1589767861-9784-1-git-send-email-yangtiezhu@loongson.cn (mailing list archive) |
|---|---|
| State | Mainlined |
| Commit | 143463fd33fe0abc13fbb93236b060ee9b73d5cb |
| Headers | show |
| Series | [v2] MIPS: Loongson: Enable devicetree based probing for 8250 ports in defconfig | expand |
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.
diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig index 4df2434..3d4c7e9 100644 --- a/arch/mips/configs/loongson3_defconfig +++ b/arch/mips/configs/loongson3_defconfig @@ -217,6 +217,7 @@ CONFIG_SERIAL_8250_EXTENDED=y CONFIG_SERIAL_8250_MANY_PORTS=y CONFIG_SERIAL_8250_SHARE_IRQ=y CONFIG_SERIAL_8250_RSA=y +CONFIG_SERIAL_OF_PLATFORM=y CONFIG_HW_RANDOM=y CONFIG_RAW_DRIVER=m CONFIG_I2C_CHARDEV=y
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(+)