Re: [PATCH Resend 2/2] ARC: [nsimosci] Unbork console

[Vineet Gupta <Vineet.Gupta1@synopsys.com>]

For Stable 3.10, 3.12, 3.13, 3.14

mainline commit 61fb4bfc010b0d2940f7fd87acbce6a0f03217cb

Thx,
-Vineet

On Saturday 05 April 2014 06:39 PM, Vineet Gupta wrote:
> Despite the switch to right UART driver (prev patch), serial console
> still doesn't work due to missing CONFIG_SERIAL_OF_PLATFORM
>
> Also fix the default cmdline in DT to not refer to out-of-tree
> ARC framebuffer driver for console.
>
> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
> Cc: <stable@vger.kernel.org>   #3.10, 3.12, 3.13, 3.14
> Cc: Francois Bedard <Francois.Bedard@synopsys.com>
> ---
>  arch/arc/boot/dts/nsimosci.dts      | 5 ++++-
>  arch/arc/configs/nsimosci_defconfig | 1 +
>  2 files changed, 5 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arc/boot/dts/nsimosci.dts b/arch/arc/boot/dts/nsimosci.dts
> index 8bd238c34c7d..4f31b2eb5cdf 100644
> --- a/arch/arc/boot/dts/nsimosci.dts
> +++ b/arch/arc/boot/dts/nsimosci.dts
> @@ -17,7 +17,10 @@
>  	interrupt-parent = <&intc>;
>  
>  	chosen {
> -		bootargs = "console=tty0 consoleblank=0";
> +		/* this is for console on PGU */
> +		/* bootargs = "console=tty0 consoleblank=0"; */
> +		/* this is for console on serial */
> +		bootargs = "earlycon=uart8250,mmio32,0xc0000000,115200n8 console=ttyS0,115200n8 consoleblank=0 debug";
>  	};
>  
>  	aliases {
> diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig
> index 451af30914f6..c01ba35a4eff 100644
> --- a/arch/arc/configs/nsimosci_defconfig
> +++ b/arch/arc/configs/nsimosci_defconfig
> @@ -54,6 +54,7 @@ CONFIG_SERIO_ARC_PS2=y
>  CONFIG_SERIAL_8250=y
>  CONFIG_SERIAL_8250_CONSOLE=y
>  CONFIG_SERIAL_8250_DW=y
> +CONFIG_SERIAL_OF_PLATFORM=y
>  CONFIG_SERIAL_ARC=y
>  CONFIG_SERIAL_ARC_CONSOLE=y
>  # CONFIG_HW_RANDOM is not set