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

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Message-Id: <1516295670.1423.0@smtp.crapouillou.net>
Date:   Thu, 18 Jan 2018 18:14:30 +0100
From:   Paul Cercueil <paul@...pouillou.net>
To:     James Hogan <james.hogan@...s.com>
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

Hi James,

Le mer. 17 janv. 2018 à 22:28, James Hogan <james.hogan@...s.com> a 
écrit :
> 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

I will fix it in a separate patch, if you don't mind.

-Paul