[U-Boot] [PATCH] AT91RM9200: fix AT91_PMC_MCKR_MDIV_* defines for this CPU

[clagix at gmail.com]

The AT91RM9200 has a different bit assignment in PMC MCKR register than
it's successors (verified by Atmel's manuals on AT91RM9200 and AT91SAM926).
AT91RM9200 supports the additional divider of 3.

Signed-off-by: Guido Classen <clagix at gmail.com>

--- u-boot-git/arch/arm/include/asm/arch-at91/at91_pmc.h	2010-11-12 18:30:31.000000000 +0100
+++ u-boot-ccm2200/arch/arm/include/asm/arch-at91/at91_pmc.h	2010-11-16 22:00:56.000000000 +0100
@@ -91,10 +91,19 @@
  #define AT91_PMC_MCKR_PRES_64		0x00000018
  #define AT91_PMC_MCKR_PRES_MASK		0x0000001C

+#ifdef CONFIG_AT91RM9200
+#define AT91_PMC_MCKR_MDIV_1		0x00000000
+#define AT91_PMC_MCKR_MDIV_2		0x00000100
+#define AT91_PMC_MCKR_MDIV_3		0x00000200
+#define AT91_PMC_MCKR_MDIV_4		0x00000300
+#define AT91_PMC_MCKR_MDIV_MASK		0x00000300
+#else
  #define AT91_PMC_MCKR_MDIV_1		0x00000000
  #define AT91_PMC_MCKR_MDIV_2		0x00000100
  #define AT91_PMC_MCKR_MDIV_4		0x00000200
  #define AT91_PMC_MCKR_MDIV_MASK		0x00000300
+#endif

  #define AT91_PMC_MCKR_PLLADIV_1		0x00001000
  #define AT91_PMC_MCKR_PLLADIV_2		0x00002000