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authorJean Pihet <jpihet@mvista.com>2009-07-24 19:43:25 -0600
committerpaul <paul@twilight.(none)>2009-07-24 19:43:25 -0600
commit58cda884ecc87dcce18d463b0c8bd928dae63ad8 (patch)
tree7bae55dfa93ba324c7478f5affa11ac66e2cab1a /arch/arm/plat-omap/include/mach/sdrc.h
parent4be3bd7849165e7efa6b0b35a23d6a3598d97465 (diff)
OMAP3 SDRC: add support for 2 SDRAM chip selects
Some OMAP3 boards (Beagle Cx, Overo, RX51, Pandora) have 2 SDRAM parts connected to the SDRC. This patch adds the following: - add a new argument of type omap_sdrc_params struct* to omap2_init_common_hw and omap2_sdrc_init for the 2nd CS params - adapted the OMAP boards files to the new prototype of omap2_init_common_hw - add the SDRC 2nd CS registers offsets defines - adapt the sram sleep code to configure the SDRC for the 2nd CS Note: If the 2nd param to omap2_init_common_hw is NULL, then the parameters are not programmed into the SDRC CS1 registers Tested on 3430 SDP and Beagleboard rev C2 and B5, with suspend/resume and frequency changes (cpufreq). Signed-off-by: Jean Pihet <jpihet@mvista.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
Diffstat (limited to 'arch/arm/plat-omap/include/mach/sdrc.h')
-rw-r--r--arch/arm/plat-omap/include/mach/sdrc.h11
1 files changed, 9 insertions, 2 deletions
diff --git a/arch/arm/plat-omap/include/mach/sdrc.h b/arch/arm/plat-omap/include/mach/sdrc.h
index adc73522491..0be18e4ff18 100644
--- a/arch/arm/plat-omap/include/mach/sdrc.h
+++ b/arch/arm/plat-omap/include/mach/sdrc.h
@@ -30,6 +30,10 @@
#define SDRC_ACTIM_CTRL_A_0 0x09c
#define SDRC_ACTIM_CTRL_B_0 0x0a0
#define SDRC_RFR_CTRL_0 0x0a4
+#define SDRC_MR_1 0x0B4
+#define SDRC_ACTIM_CTRL_A_1 0x0C4
+#define SDRC_ACTIM_CTRL_B_1 0x0C8
+#define SDRC_RFR_CTRL_1 0x0D4
/*
* These values represent the number of memory clock cycles between
@@ -102,8 +106,11 @@ struct omap_sdrc_params {
u32 mr;
};
-void __init omap2_sdrc_init(struct omap_sdrc_params *sp);
-struct omap_sdrc_params *omap2_sdrc_get_params(unsigned long r);
+void __init omap2_sdrc_init(struct omap_sdrc_params *sdrc_cs0,
+ struct omap_sdrc_params *sdrc_cs1);
+int omap2_sdrc_get_params(unsigned long r,
+ struct omap_sdrc_params **sdrc_cs0,
+ struct omap_sdrc_params **sdrc_cs1);
#ifdef CONFIG_ARCH_OMAP2