[PATCH 12/15] ARM: mxs: Dynamically allocate fec devices

[Uwe Kleine-König]

On Fri, Nov 26, 2010 at 02:49:11PM +0800, Shawn Guo wrote:
> Dynamically allocate fec devices for MX28, which gets dual
> fec interface.
> 
> Signed-off-by: Shawn Guo <shawn.guo at freescale.com>
> ---
>  arch/arm/mach-mxs/devices-mx28.h                |    6 +++
>  arch/arm/mach-mxs/devices/platform-fec.c        |   51 +++++++++++++++++++++++
>  arch/arm/mach-mxs/include/mach/devices-common.h |   12 +++++
>  3 files changed, 69 insertions(+), 0 deletions(-)
>  create mode 100644 arch/arm/mach-mxs/devices/platform-fec.c
> 
> diff --git a/arch/arm/mach-mxs/devices-mx28.h b/arch/arm/mach-mxs/devices-mx28.h
> index 47c2f04..c509e5d 100644
> --- a/arch/arm/mach-mxs/devices-mx28.h
> +++ b/arch/arm/mach-mxs/devices-mx28.h
> @@ -14,3 +14,9 @@
>  extern const struct mxs_duart_data mx28_duart_data __initconst;
>  #define mx28_add_duart() \
>  	mxs_add_duart(&mx28_duart_data)
> +
> +extern const struct mxs_fec_data mx28_fec_data[] __initconst;
> +#define mx28_add_fec(id, pdata) \
> +	mxs_add_fec(&mx28_fec_data[id], pdata)
> +#define mx28_add_fec0(pdata)	mx28_add_fec(0, pdata)
> +#define mx28_add_fec1(pdata)	mx28_add_fec(1, pdata)
On MXC I only kept the defines that have the id in the macro name for
compatibility.  Just to let you know.

> diff --git a/arch/arm/mach-mxs/devices/platform-fec.c b/arch/arm/mach-mxs/devices/platform-fec.c
> new file mode 100644
> index 0000000..a2389b2
> --- /dev/null
> +++ b/arch/arm/mach-mxs/devices/platform-fec.c
> @@ -0,0 +1,51 @@
> +/*
> + * Copyright (C) 2010 Pengutronix
> + * Uwe Kleine-Koenig <u.kleine-koenig at pengutronix.de>
> + *
> + * This program is free software; you can redistribute it and/or modify it under
> + * the terms of the GNU General Public License version 2 as published by the
> + * Free Software Foundation.
> + */
> +#include <asm/sizes.h>
> +#include <mach/hardware.h>
> +#include <mach/devices-common.h>
> +
> +#define mxs_fec_data_entry_single(soc, _id, _size)			\
> +	{								\
> +		.id = _id,						\
> +		.iobase = soc ## _ENET_MAC ## _id ## _BASE_ADDR,	\
> +		.iosize = _size,					\
You don't necessarily need to add the size here as it's equal for all
devices.

> +		.irq = soc ## _INT_ENET_MAC ## _id,			\
> +	}
> +
> +#define mxs_fec_data_entry(soc, _id, _size)				\
> +	[_id] = mxs_fec_data_entry_single(soc, _id, _size)
> +
> +#ifdef CONFIG_SOC_IMX28
> +const struct mxs_fec_data mx28_fec_data[] __initconst = {
> +#define mx28_fec_data_entry(_id)					\
> +	mxs_fec_data_entry(MX28, _id, SZ_16K)
> +	mx28_fec_data_entry(0),
> +	mx28_fec_data_entry(1),
> +};
> +#endif
> +
> +struct platform_device *__init mxs_add_fec(
> +		const struct mxs_fec_data *data,
> +		const struct fec_platform_data *pdata)
> +{
> +	struct resource res[] = {
> +		{
> +			.start = data->iobase,
> +			.end = data->iobase + data->iosize - 1,
> +			.flags = IORESOURCE_MEM,
> +		}, {
> +			.start = data->irq,
> +			.end = data->irq,
> +			.flags = IORESOURCE_IRQ,
> +		},
> +	};
> +
> +	return mxs_add_platform_device("fec", data->id,
> +			res, ARRAY_SIZE(res), pdata, sizeof(*pdata));
> +}
> diff --git a/arch/arm/mach-mxs/include/mach/devices-common.h b/arch/arm/mach-mxs/include/mach/devices-common.h
> index 07b4439..3da48d4 100644
> --- a/arch/arm/mach-mxs/include/mach/devices-common.h
> +++ b/arch/arm/mach-mxs/include/mach/devices-common.h
> @@ -32,3 +32,15 @@ struct mxs_duart_data {
>  };
>  struct platform_device *__init mxs_add_duart(
>  		const struct mxs_duart_data *data);
> +
> +/* fec */
> +#include <linux/fec.h>
> +struct mxs_fec_data {
> +	int id;
> +	resource_size_t iobase;
> +	resource_size_t iosize;
> +	resource_size_t irq;
> +};
> +struct platform_device *__init mxs_add_fec(
> +		const struct mxs_fec_data *data,
> +		const struct fec_platform_data *pdata);
> -- 
> 1.7.1
> 
> 
> 

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |