Subject: Re: [PATCH 4/6] MPC5121 Add MPC5121ADS cpld support

From: Grant Likely <[email-masked]>
Date: Sat, 28 Jun 2008 23:36:46 -0600

Minor comments below.

On Fri, Jun 20, 2008 at 10:58:37AM -0600, John Rigby wrote:
> Add a interrupt host for the interrupt
> controller in the mpc5121ads cpld.
> PCI interrupts are 0-7 the rest are 8-15
> Touchscreen pendown irq is hardwired to irq1
> All other irqs are chainged to irq0
> 
> Signed-off-by: John Rigby <[email-masked]>
> ---
>  arch/powerpc/platforms/512x/Kconfig            |    1 +
>  arch/powerpc/platforms/512x/Makefile           |    2 +-
>  arch/powerpc/platforms/512x/mpc5121_ads.c      |   14 ++-
>  arch/powerpc/platforms/512x/mpc5121_ads.h      |   14 ++
>  arch/powerpc/platforms/512x/mpc5121_ads_cpld.c |  204 ++++++++++++++++++++++++
>  5 files changed, 233 insertions(+), 2 deletions(-)
>  create mode 100644 arch/powerpc/platforms/512x/mpc5121_ads.h
>  create mode 100644 arch/powerpc/platforms/512x/mpc5121_ads_cpld.c
> 
> diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig
> index f9a04da..0fd3b00 100644
> --- a/arch/powerpc/platforms/512x/Kconfig
> +++ b/arch/powerpc/platforms/512x/Kconfig
> @@ -12,6 +12,7 @@ config MPC5121_ADS
>  	depends on PPC_MULTIPLATFORM && PPC32
>  	select DEFAULT_UIMAGE
>  	select PPC_MPC5121
> +	select MPC5121_ADS_CPLD

What is this for?  I don't see it used anywhere.

>  	help
>  	  This option enables support for the MPC5121E ADS board.
>  
> diff --git a/arch/powerpc/platforms/512x/mpc5121_ads.c b/arch/powerpc/platforms/512x/mpc5121_ads.c
> index 45bb2ef..36805fd 100644
> --- a/arch/powerpc/platforms/512x/mpc5121_ads.c
> +++ b/arch/powerpc/platforms/512x/mpc5121_ads.c
> @@ -1,5 +1,5 @@
>  /*
> - * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
> + * Copyright (C) 2007, 2008 Freescale Semiconductor, Inc. All rights reserved.
>   *
>   * Author: John Rigby, <[email-masked]>, Thur Mar 29 2007
>   *
> @@ -23,6 +23,16 @@
>  #include <asm/time.h>
>  
>  #include "mpc512x.h"
> +#include "mpc5121_ads.h"
> +
> +static void __init mpc5121_ads_setup_arch(void)
> +{
> +	printk(KERN_INFO "MPC5121 ADS board from Freescale Semiconductor\n");
> +	/*
> +	 * cpld regs are needed early
> +	 */
> +	mpc5121_ads_cpld_map();
> +}
>  
>  static struct of_device_id __initdata of_bus_ids[] = {
>  	{ .name = "soc", },
> @@ -41,6 +51,7 @@ static void __init mpc5121_ads_declare_of_platform_devices(void)
>  static void __init mpc5121_ads_init_IRQ(void)
>  {
>  	mpc512x_init_IRQ();
> +	mpc5121_ads_cpld_pic_init();

Ah, I understand now.  Ignore my related comment in the previous patch.

>  }
>  /*