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

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Date:   Thu, 18 Jan 2018 20:30:53 +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 Thu, Jan 18, 2018 at 06:14:30PM +0100, Paul Cercueil wrote:
> 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.

Sure,

Cheers
James

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