[U-Boot] [PATCH] i.MX6: imx_ccm is a constant that points to a register set

[Stefano Babic <sbabic@denx.de>]

On 05/03/2012 17:34, Eric Nelson wrote:

Hi Eric,

> If we're going to use globals to point at register banks, they
> should be constant and visible.
> ---

ok, but why are we going to use global pointers ? We have global
constants (in imx-regs.h) and each part of code sets its local copy
without using global pointers, that require also some rules and naming
conventions to avoid conflicts.

>  arch/arm/cpu/armv7/mx6/clock.c           |    2 +-
>  arch/arm/include/asm/arch-mx6/imx-regs.h |    2 ++
>  2 files changed, 3 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm/cpu/armv7/mx6/clock.c b/arch/arm/cpu/armv7/mx6/clock.c
> index ef98563..eb1f09b 100644
> --- a/arch/arm/cpu/armv7/mx6/clock.c
> +++ b/arch/arm/cpu/armv7/mx6/clock.c
> @@ -34,7 +34,7 @@ enum pll_clocks {
>  	PLL_ENET,	/* ENET PLL */
>  };
>  
> -struct imx_ccm_reg *imx_ccm = (struct imx_ccm_reg *)CCM_BASE_ADDR;
> +struct imx_ccm_reg *const imx_ccm = (struct imx_ccm_reg *)CCM_BASE_ADDR;

As far as I see, this is used only in clock.c - and it must be static.

Best regards,
Stefano Babic

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