netdev - Re: [PATCH 08/10] pxa: make mainstone to use the new smc91x platform data

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Message-id: <alpine.LFD.1.10.0806262002400.2979@xanadu.home>
Date:	Thu, 26 Jun 2008 20:03:28 -0400 (EDT)
From:	Nicolas Pitre <nico@....org>
To:	Eric Miao <eric.y.miao@...il.com>
Cc:	linux-arm-kernel <linux-arm-kernel@...ts.arm.linux.org.uk>,
	linux-netdev <netdev@...r.kernel.org>,
	Magnus Damm <magnus.damm@...il.com>,
	Eric Miao <eric.miao@...vell.com>
Subject: Re: [PATCH 08/10] pxa: make mainstone to use the new smc91x platform
 data

On Tue, 24 Jun 2008, Eric Miao wrote:

> From: Eric Miao <eric.miao@...vell.com>
> 
> Signed-off-by: Eric Miao <eric.miao@...vell.com>

Acked-by: Nicolas Pitre <nico@....org>

> ---
>  arch/arm/mach-pxa/mainstone.c |    9 +++++++++
>  drivers/net/smc91x.h          |   33 +++++++++++++++++++++++++++------
>  2 files changed, 36 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
> index 5b145fa..7135c68 100644
> --- a/arch/arm/mach-pxa/mainstone.c
> +++ b/arch/arm/mach-pxa/mainstone.c
> @@ -26,6 +26,7 @@
>  #include <linux/input.h>
>  #include <linux/gpio_keys.h>
>  #include <linux/pwm_backlight.h>
> +#include <linux/smc91x.h>
>  
>  #include <asm/types.h>
>  #include <asm/setup.h>
> @@ -240,11 +241,19 @@ static struct resource smc91x_resources[] = {
>  	}
>  };
>  
> +static struct smc91x_platdata mainstone_smc91x_info = {
> +	.flags	= SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
> +		  SMC91X_NOWAIT | SMC91X_USE_DMA,
> +};
> +
>  static struct platform_device smc91x_device = {
>  	.name		= "smc91x",
>  	.id		= 0,
>  	.num_resources	= ARRAY_SIZE(smc91x_resources),
>  	.resource	= smc91x_resources,
> +	.dev		= {
> +		.platform_data = &mainstone_smc91x_info,
> +	},
>  };
>  
>  static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv)
> diff --git a/drivers/net/smc91x.h b/drivers/net/smc91x.h
> index 95ee9ed..3d03284 100644
> --- a/drivers/net/smc91x.h
> +++ b/drivers/net/smc91x.h
> @@ -40,22 +40,44 @@
>   * Define your architecture specific bus configuration parameters here.
>   */
>  
> -#if	defined(CONFIG_ARCH_LUBBOCK)
> +#if defined(CONFIG_ARCH_LUBBOCK) ||\
> +    defined(CONFIG_MACH_MAINSTONE)
>  
> -/* We can only do 16-bit reads and writes in the static memory space. */
> -#define SMC_CAN_USE_8BIT	0
> +#include <asm/mach-types.h>
> +
> +/* Now the bus width is specified in the platform data
> + * pretend here to support all I/O access types
> + */
> +#define SMC_CAN_USE_8BIT	1
>  #define SMC_CAN_USE_16BIT	1
> -#define SMC_CAN_USE_32BIT	0
> +#define SMC_CAN_USE_32BIT	1
>  #define SMC_NOWAIT		1
>  
>  #define SMC_IO_SHIFT		smc_io_shift
>  
> +#define SMC_inb(a, r)		readb((a) + (r))
>  #define SMC_inw(a, r)		readw((a) + (r))
> -#define SMC_outw(v, a, r)	writew(v, (a) + (r))
> +#define SMC_inl(a, r)		readl((a) + (r))
> +#define SMC_outb(v, a, r)	writeb(v, (a) + (r))
> +#define SMC_outl(v, a, r)	writel(v, (a) + (r))
>  #define SMC_insw(a, r, p, l)	readsw((a) + (r), p, l)
>  #define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
> +#define SMC_insl(a, r, p, l)	readsl((a) + (r), p, l)
> +#define SMC_outsl(a, r, p, l)	writesl((a) + (r), p, l)
>  #define SMC_IRQ_FLAGS		(-1)	/* from resource */
>  
> +/* We actually can't write halfwords properly if not word aligned */
> +static inline void SMC_outw(u16 val, void __iomem *ioaddr, int reg)
> +{
> +	if (machine_is_mainstone() && reg & 2) {
> +		unsigned int v = val << 16;
> +		v |= readl(ioaddr + (reg & ~2)) & 0xffff;
> +		writel(v, ioaddr + (reg & ~2));
> +	} else {
> +		writew(val, ioaddr + reg);
> +	}
> +}
> +
>  #elif defined(CONFIG_BLACKFIN)
>  
>  #define SMC_IRQ_FLAGS		IRQF_TRIGGER_HIGH
> @@ -194,7 +216,6 @@
>  #define SMC_outsw(a, r, p, l)	writesw((a) + (r), p, l)
>  
>  #elif	defined(CONFIG_ARCH_INNOKOM) || \
> -	defined(CONFIG_MACH_MAINSTONE) || \
>  	defined(CONFIG_ARCH_PXA_IDP) || \
>  	defined(CONFIG_ARCH_RAMSES) || \
>  	defined(CONFIG_ARCH_PCM027)
> -- 
> 1.5.4.3
> 


Nicolas
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