[PATCH v2 04/15] ARM: mxs: Add interrupt support

[Lothar Waßmann]

Hi,

Shawn Guo writes:
> Add Interrupt Collector (ICOLL) support for MXS-based.
> 
> Signed-off-by: Shawn Guo <shawn.guo at freescale.com>
> ---
> Changes for v2:
>  - Get icoll base in get_irqnr_preamble
>  - Check the case of single SoC build and use hard-coding address if possible
> 
>  arch/arm/mach-mxs/icoll.c                    |   77 ++++++++++++++++++++++++++
>  arch/arm/mach-mxs/include/mach/entry-macro.S |   44 +++++++++++++++
>  2 files changed, 121 insertions(+), 0 deletions(-)
>  create mode 100644 arch/arm/mach-mxs/icoll.c
>  create mode 100644 arch/arm/mach-mxs/include/mach/entry-macro.S
> 
[...]
> diff --git a/arch/arm/mach-mxs/include/mach/entry-macro.S b/arch/arm/mach-mxs/include/mach/entry-macro.S
> new file mode 100644
> index 0000000..2c7755b
> --- /dev/null
> +++ b/arch/arm/mach-mxs/include/mach/entry-macro.S
> @@ -0,0 +1,44 @@
> +/*
> + * Low-level IRQ helper macros for Freescale MXS-based
> + *
> + * Copyright (C) 2009-2010 Freescale Semiconductor, Inc. All Rights Reserved.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; either version 2 of the License, or
> + * (at your option) any later version.
> + *
> + * This program is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> + * GNU General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License along
> + * with this program; if not, write to the Free Software Foundation, Inc.,
> + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
> + */
> +
> +#include <mach/hardware.h>
> +
> +	.macro	disable_fiq
> +	.endm
> +
> +	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
> +	ldr	\irqnr, [\base, #0x70]
> +	cmp	\irqnr, #0x7F
> +	moveqs	\irqnr, #0
> +	.endm
> +
> +	.macro  get_irqnr_preamble, base, tmp
> +#if defined (CONFIG_SOC_IMX23) && defined (CONFIG_SOC_IMX28)
> +	ldr	\base, =icoll_base
> +	ldr	\base, [\base]
> +#elif defined (CONFIG_SOC_IMX23)
> +	ldr	\base, =MX23_ICOLL_BASE_ADDR
>
MX23_IO_ADDRESS(MX23_ICOLL_BASE_ADDR)

> +#else
> +	ldr	\base, =MX28_ICOLL_BASE_ADDR
>
MX28_IO_ADDRESS(MX28_ICOLL_BASE_ADDR)


Lothar Waßmann
-- 
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