linux-kernel - Re: mips: Fix console output for Fulong2e system

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Message-ID: <20150822213434.GA14985@roeck-us.net>
Date:	Sat, 22 Aug 2015 14:34:34 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	Ralf Baechle <ralf@...ux-mips.org>
Cc:	Huacai Chen <chenhc@...ote.com>, linux-mips@...ux-mips.org,
	linux-kernel@...r.kernel.org
Subject: Re: mips: Fix console output for Fulong2e system

On Thu, Aug 06, 2015 at 10:57:16PM -0700, Guenter Roeck wrote:
> Commit 3adeb2566b9b ("MIPS: Loongson: Improve LEFI firmware interface")
> made the number of UARTs dynamic if LEFI_FIRMWARE_INTERFACE is configured.
> Unfortunately, it did not initialize the number of UARTs if
> LEFI_FIRMWARE_INTERFACE is not configured. As a result, the Fulong2e
> system has no console.
> 
> Fixes: 3adeb2566b9b ("MIPS: Loongson: Improve LEFI firmware interface")
> Cc: Huacai Chen <chenhc@...ote.com>
> Signed-off-by: Guenter Roeck <linux@...ck-us.net>

Hello Ralf,

please let me know if anything is wrong with this patch.
Should I resend with Huacai Chen's Ack and capital MIPS in the subject line ?

Thanks,
Guenter

> ---
> Never mind my earlier e-mail, I figured it out.
> Should be a candidate for stable (v3.19+, ie v4.1 in practice).
> 
>  arch/mips/loongson64/common/env.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/arch/mips/loongson64/common/env.c b/arch/mips/loongson64/common/env.c
> index f6c44dd332e2..d6d07ad56180 100644
> --- a/arch/mips/loongson64/common/env.c
> +++ b/arch/mips/loongson64/common/env.c
> @@ -64,6 +64,9 @@ void __init prom_init_env(void)
>  	}
>  	if (memsize == 0)
>  		memsize = 256;
> +
> +	loongson_sysconf.nr_uarts = 1;
> +
>  	pr_info("memsize=%u, highmemsize=%u\n", memsize, highmemsize);
>  #else
>  	struct boot_params *boot_p;
--
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