linux-kernel - Re: [PATCH 1/5] ARM: remove ixp23xx and ixp2000 platforms

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Date:	Wed, 11 Apr 2012 00:13:00 +0200
From:	Jaccon Bastiaansen <jaccon.bastiaansen@...il.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Rob Herring <robherring2@...il.com>, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Russell King <linux@....linux.org.uk>,
	Nicolas Pitre <nico@...xnic.net>,
	Olof Johansson <olof@...om.net>,
	Rob Herring <rob.herring@...xeda.com>,
	Randy Dunlap <rdunlap@...otime.net>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Russell Nelson <nelson@...nwr.com>
Subject: Re: [PATCH 1/5] ARM: remove ixp23xx and ixp2000 platforms

Hello Arnd,

Op 4 april 2012 14:35 heeft Arnd Bergmann <arnd@...db.de> het volgende
geschreven:
> On Wednesday 04 April 2012, Rob Herring wrote:
>> From: Rob Herring <rob.herring@...xeda.com>
>>
>> ixp2xxx platforms have had no real changes since ~2006 and the maintainer
>> has said on irc that they can be removed:
>>
>> 13:05 < nico> do you still care about ixp2000?
>> 13:22 < lennert> not really, no
>> 13:58 < nico> do you think we could remove it from the kernel tree?
>> 14:01 < lennert> go for it, and remove ixp23xx too while you're at it
>>
>> Removing will help simplify ARM consolidation in general and PCI re-work
>> specifically.
>
> This will let us kill another bit of ugly code:
> 8<-----
> [PATCH] net: cs89x0: remove ixp2xxx specific hacks
>
> The IXDP2351 and IXDP2X01 machines are getting removed from the kernel, so there
> is no longer a need to special-case them in the cs89x0 driver.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> ---
>  drivers/net/ethernet/cirrus/cs89x0.c |   36 ----------------------------------
>  1 files changed, 0 insertions(+), 36 deletions(-)
>
> diff --git a/drivers/net/ethernet/cirrus/cs89x0.c b/drivers/net/ethernet/cirrus/cs89x0.c
> index b9406cb..6b92080 100644
> --- a/drivers/net/ethernet/cirrus/cs89x0.c
> +++ b/drivers/net/ethernet/cirrus/cs89x0.c
> @@ -173,21 +173,11 @@ static char version[] __initdata =
>  /* The cs8900 has 4 IRQ pins, software selectable. cs8900_irq_map maps
>    them to system IRQ numbers. This mapping is card specific and is set to
>    the configuration of the Cirrus Eval board for this chip. */
> -#if defined(CONFIG_MACH_IXDP2351)
> -#define CS89x0_NONISA_IRQ
> -static unsigned int netcard_portlist[] __used __initdata = {IXDP2351_VIRT_CS8900_BASE, 0};
> -static unsigned int cs8900_irq_map[] = {IRQ_IXDP2351_CS8900, 0, 0, 0};
> -#elif defined(CONFIG_ARCH_IXDP2X01)
> -#define CS89x0_NONISA_IRQ
> -static unsigned int netcard_portlist[] __used __initdata = {IXDP2X01_CS8900_VIRT_BASE, 0};
> -static unsigned int cs8900_irq_map[] = {IRQ_IXDP2X01_CS8900, 0, 0, 0};
> -#else
>  #ifndef CONFIG_CS89x0_PLATFORM
>  static unsigned int netcard_portlist[] __used __initdata =
>    { 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0};
>  static unsigned int cs8900_irq_map[] = {10,11,12,5};
>  #endif
> -#endif
>
>  #if DEBUGGING
>  static unsigned int net_debug = DEBUGGING;
> @@ -345,31 +335,6 @@ out:
>  #endif
>  #endif
>
> -#if defined(CONFIG_MACH_IXDP2351)
> -static u16
> -readword(unsigned long base_addr, int portno)
> -{
> -       return __raw_readw(base_addr + (portno << 1));
> -}
> -
> -static void
> -writeword(unsigned long base_addr, int portno, u16 value)
> -{
> -       __raw_writew(value, base_addr + (portno << 1));
> -}
> -#elif defined(CONFIG_ARCH_IXDP2X01)
> -static u16
> -readword(unsigned long base_addr, int portno)
> -{
> -       return __raw_readl(base_addr + (portno << 1));
> -}
> -
> -static void
> -writeword(unsigned long base_addr, int portno, u16 value)
> -{
> -       __raw_writel(value, base_addr + (portno << 1));
> -}
> -#else
>  static u16
>  readword(unsigned long base_addr, int portno)
>  {
> @@ -381,7 +346,6 @@ writeword(unsigned long base_addr, int portno, u16 value)
>  {
>        outw(value, base_addr + portno);
>  }
> -#endif
>
>  static void
>  readwords(unsigned long base_addr, int portno, void *buf, int length)

You can now also remove all the uses of CS89x0_NONISA_IRQ, since those
are only used for the IXDP specific parts of the CS89x0 driver.

Regards
  Jaccon
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