[PATCH] AT91: at91sam9g10 chip identification changed
Andrew Victor
avictor.za at gmail.com
Tue Apr 13 03:42:55 EDT 2010
hi Nicolas,
> A bit in the at91sam9g10 identification number changed between Engineering
> Sample and final product. This patch will identify both as being at91sam9g10.
> -#define ARCH_ID_AT91SAM9G10 0x819903a0
> +#define ARCH_ID_AT91SAM9G10 0x019903a0
> -#define cpu_is_at91sam9g10() (at91_cpu_identify() == ARCH_ID_AT91SAM9G10)
> +#define cpu_is_at91sam9g10() ((at91_cpu_identify() & ~AT91_CIDR_EXT) == ARCH_ID_AT91SAM9G10)
Wouldn't it be better to just mask out the AT91_CIDR_EXT bit in
at91_cpu_identify()?
That bit isn't really useful for "version" information.
We'd then just need to modify:
#define ARCH_ID_AT91SAM9G10 0x019903a0
#define ARCH_ID_AT91SAM9G45 0x019b05a0
#define ARCH_ID_AT91SAM9G45MRL 0x019b05a2 /* aka 9G45-ES2 &
non ES lots */
#define ARCH_ID_AT91SAM9G45ES 0x019b05a1 /* 9G45-ES
(Engineering Sample) */
(ie, drop bit AT91_CIDR_EXT)
Regards,
Andrew Victor
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