linux-kernel - Re: [PATCH v7 11/14] MIPS: ingenic: Initial JZ4770 support

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Date:   Wed, 17 Jan 2018 21:28:54 +0000
From:   James Hogan <james.hogan@...s.com>
To:     Paul Cercueil <paul@...pouillou.net>
CC:     Ralf Baechle <ralf@...ux-mips.org>,
        Maarten ter Huurne <maarten@...ewalker.org>,
        <linux-kernel@...r.kernel.org>, <linux-mips@...ux-mips.org>
Subject: Re: [PATCH v7 11/14] MIPS: ingenic: Initial JZ4770 support

On Tue, Jan 16, 2018 at 04:48:01PM +0100, Paul Cercueil wrote:
> Provide just enough bits (clocks, clocksource, uart) to allow a kernel
> to boot on the JZ4770 SoC to a initramfs userspace.
> 
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> Reviewed-by: PrasannaKumar Muralidharan <prasannatsmkumar@...il.com>


> diff --git a/arch/mips/jz4740/time.c b/arch/mips/jz4740/time.c
> index bb1ad5119da4..2ca9160f642a 100644
> --- a/arch/mips/jz4740/time.c
> +++ b/arch/mips/jz4740/time.c
> @@ -113,7 +113,7 @@ static struct clock_event_device jz4740_clockevent = {
>  #ifdef CONFIG_MACH_JZ4740
>  	.irq = JZ4740_IRQ_TCU0,
>  #endif
> -#ifdef CONFIG_MACH_JZ4780
> +#if defined(CONFIG_MACH_JZ4770) || defined(CONFIG_MACH_JZ4780)
>  	.irq = JZ4780_IRQ_TCU2,
>  #endif
>  };
> -- 
> 2.11.0
> 

MACH_INGENIC selects SYS_SUPPORTS_ZBOOT_UART16550, so I wonder whether
arch/mips/boot/compressed/uart-16550.c needs updating for JZ4770 like
commit ba9e72c2290f ("MIPS: Fix build with DEBUG_ZBOOT and MACH_JZ4780")
does for JZ4780.

Otherwise the non-DT bits look reasonable (I've not really looked
properly at the DT):
Reviewed-by: James Hogan <jhogan@...nel.org>

Cheers
James

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