From: s.hauer@pengutronix.de (Sascha Hauer)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/6] arm/imx6q: add core definitions and low-level debug uart
Date: Mon, 19 Sep 2011 11:55:44 +0200 [thread overview]
Message-ID: <20110919095544.GL31404@pengutronix.de> (raw)
In-Reply-To: <CAMPhdO-MWPo8xAF12O2cehfT8a4zmpY0zCVZBQGUsS42-LzQrw@mail.gmail.com>
On Mon, Sep 19, 2011 at 05:45:59PM +0800, Eric Miao wrote:
> On Mon, Sep 19, 2011 at 5:35 PM, Sascha Hauer <s.hauer@pengutronix.de> wrote:
> > On Thu, Sep 15, 2011 at 10:45:22PM +0800, Shawn Guo wrote:
> >> It adds the core definitions and low-level debug uart support
> >> for imx6q.
> >>
> >>
> >> ?#define UART_VADDR ? IMX_IO_ADDRESS(UART_PADDR)
> >> diff --git a/arch/arm/plat-mxc/include/mach/entry-macro.S b/arch/arm/plat-mxc/include/mach/entry-macro.S
> >> index 066d464..341f800 100644
> >> --- a/arch/arm/plat-mxc/include/mach/entry-macro.S
> >> +++ b/arch/arm/plat-mxc/include/mach/entry-macro.S
> >> @@ -1,6 +1,6 @@
> >> ?/*
> >> ? * ?Copyright (C) 2007 Lennert Buytenhek <buytenh@wantstofly.org>
> >> - * ?Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved.
> >> + * ?Copyright 2004-2011 Freescale Semiconductor, Inc. All Rights Reserved.
> >> ? */
> >>
> >> ?/*
> >> @@ -11,6 +11,17 @@
> >>
> >> ?#include <mach/hardware.h>
> >>
> >> +#ifdef CONFIG_ARM_GIC
> >> +#include <asm/hardware/entry-macro-gic.S>
> >> +
> >> + ? ? .macro ?disable_fiq
> >> + ? ? .endm
> >> +
> >> + ? ? .macro ?arch_ret_to_user, tmp1, tmp2
> >> + ? ? .endm
> >> +
> >> +#else
> >
> > That's the third interrupt entry code handled here with ifdefs. I
> > remember there was some infrastructure to have multiple irq
> > controllers. I can't find any pointers, but I think Eric (added him
> > to Cc) told me about it.
> > As this is also the last roadblock to compile i.MX3 and i.MX5 into a
> > single kernel this might be the right moment to work on this.
>
> It's CONFIG_MULTIPLE_IRQ_HANDLER. And check arch/arm/mach-pxa/irq.c
> for example. Basically to use a C function to handle the interrupts, and
> have each machine to specify the correct handler.
>
> E.g. in pxa - there are pxa25x_handle_irq, pxa3xx_handle_irq ...
Nice, it's already merged. I should have used grep instead of google.
For reference, it's CONFIG_MULTI_IRQ_HANDLER.
Sascha
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next prev parent reply other threads:[~2011-09-19 9:55 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-15 14:45 [PATCH v2 0/6] add initial imx6q support Shawn Guo
2011-09-15 14:45 ` [PATCH v2 1/6] arm/imx6q: add device tree source Shawn Guo
2011-09-15 14:45 ` [PATCH v2 2/6] arm/imx6q: add core definitions and low-level debug uart Shawn Guo
2011-09-19 9:35 ` Sascha Hauer
2011-09-19 9:45 ` Eric Miao
2011-09-19 9:55 ` Sascha Hauer [this message]
2011-09-19 9:58 ` Eric Miao
2011-09-19 14:21 ` Shawn Guo
2011-09-15 14:45 ` [PATCH v2 3/6] arm/imx6q: add core drivers clock, gpc, mmdc and src Shawn Guo
2011-09-15 14:45 ` [PATCH v2 4/6] arm/imx6q: add smp and cpu hotplug support Shawn Guo
2011-09-15 14:45 ` [PATCH v2 5/6] arm/imx6q: add device tree machine support Shawn Guo
2011-09-15 14:45 ` [PATCH v2 6/6] arm/imx6q: add suspend/resume support Shawn Guo
2011-09-15 16:28 ` Lorenzo Pieralisi
2011-09-16 6:09 ` Shawn Guo
2011-09-16 14:45 ` Lorenzo Pieralisi
2011-09-17 8:30 ` Shawn Guo
2011-09-17 12:32 ` Shawn Guo
2011-09-20 15:35 ` Lorenzo Pieralisi
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