[U-Boot] [U-BOOT][PATCH 2/5] MX53: Add register definitions

[Stefano Babic]

Jason Liu wrote:
> The patch add header files to support the Freescale i.MX53
> processor, setting definitions for internal registers.
> 
> Signed-off-by:Jason Liu <r64343 at freescale.com>
> ---
>  arch/arm/include/asm/arch-mx53/asm-offsets.h |   52 ++
>  arch/arm/include/asm/arch-mx53/crm_regs.h    |  708 ++++++++++++++++++++++++++
>  arch/arm/include/asm/arch-mx53/imx-regs.h    |  193 +++++++
>  3 files changed, 953 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/include/asm/arch-mx53/asm-offsets.h b/arch/arm/include/asm/arch-mx53/asm-offsets.h

The only difference with arch-mx51/asm-offset.h is:

< #define CLKCTL_CCGR7            0x84
< #define CLKCTL_CMEOR            0x88
---
> #define CLKCTL_CMEOR            0x84

We do not need to introduce a newer file.


> diff --git a/arch/arm/include/asm/arch-mx53/crm_regs.h b/arch/arm/include/asm/arch-mx53/crm_regs.h
> new file mode 100644
> index 0000000..cd39055
> +/* Define the bits in register CCR */
> +#define MXC_CCM_CCR_COSC_EN		(0x1 << 12)

In mx53 some more bits are defined. However, I have not found grepping
the code where they are defined. I do not think we have to introduce
constants we do not need.

And this file must be merged with arch-mx51/crm_regs.h



> diff --git a/arch/arm/include/asm/arch-mx53/imx-regs.h b/arch/arm/include/asm/arch-mx53/imx-regs.h
> new file mode 100644
> index 0000000..104fae4
> +#define IRAM_BASE_ADDR		0xF8000000	/* internal ram */

This file must be merged with the mx51 counterparts, splitting values
where is needed, as in this case. Something like:

#if defined(CONFIG_MX51)
#define IRAM_BASE_ADDR		0x1FFE8000	/* internal ram */
#elif define (CONFIG_MX53)
#define IRAM_BASE_ADDR		0xF8000000	/* internal ram */
#else
#error "MX5 CPU not supported"
#endif


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