[U-Boot] [PATCH v2] ARM: mx31: Print the silicon version

[Wolfgang Denk <wd@denx.de>]

Dear Fabio Estevam,

In message <1302491295-11222-1-git-send-email-festevam@gmail.com> you wrote:
> Use the same method of the Linux kernel to print the MX31 silicon version on 
> boot.
> 
> Tested on a MX31PDK with a 2.0 silicon, where it shows:
> 
> CPU:   Freescale i.MX31 at 531 MHz
...
> +#define IMX_CHIP_REVISION_1_0		0x10
> +#define IMX_CHIP_REVISION_1_1		0x11
> +#define IMX_CHIP_REVISION_1_2		0x12
> +#define IMX_CHIP_REVISION_1_3		0x13
> +#define IMX_CHIP_REVISION_2_0		0x20
> +#define IMX_CHIP_REVISION_2_1		0x21
> +#define IMX_CHIP_REVISION_2_2		0x22
> +#define IMX_CHIP_REVISION_2_3		0x23
> +#define IMX_CHIP_REVISION_3_0		0x30
> +#define IMX_CHIP_REVISION_3_1		0x31
> +#define IMX_CHIP_REVISION_3_2		0x32
> +#define IMX_CHIP_REVISION_3_3		0x33

What a nightmare.  Does this not give the creeps to any of you who add
to this code?

I'm finally fed up with this, and say NAK here.

Please use something like this instead:

	#define IMX_CHIP_REVISION(maj, min) ((maj) * 16 + (min))

Feel free to add appropriate range checking on the parameters,
probably using BUILD_BUG_ON() so it gets caught at compile time.

Best regards,

Wolfgang Denk

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