From: clagix at gmail.com <clagix@gmail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH] AT91RM9200: fix AT91_PMC_MCKR_MDIV_* defines for this CPU
Date: Fri, 19 Nov 2010 02:20:42 +0100 [thread overview]
Message-ID: <4CE5D0EA.8070306@gmail.com> (raw)
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@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
next reply other threads:[~2010-11-19 1:20 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-19 1:20 clagix at gmail.com [this message]
2010-12-05 9:51 ` [U-Boot] [PATCH] AT91RM9200: fix AT91_PMC_MCKR_MDIV_* defines for this CPU Reinhard Meyer
2010-12-06 18:03 ` Guido Classen
2010-12-17 8:05 ` Reinhard Meyer
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