1 files changed, 77 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/sdrc.h b/arch/arm/mach-omap2/sdrc.h
new file mode 100644
index 00000000..b3f83799
--- /dev/null
+++ b/arch/arm/mach-omap2/sdrc.h
@@ -0,0 +1,77 @@
+#ifndef __ARCH_ARM_MACH_OMAP2_SDRC_H
+#define __ARCH_ARM_MACH_OMAP2_SDRC_H
+
+/*
+ * OMAP2 SDRC register definitions
+ *
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ * Copyright (C) 2007 Nokia Corporation
+ *
+ * Written by Paul Walmsley
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#undef DEBUG
+
+#include <plat/sdrc.h>
+
+#ifndef __ASSEMBLER__
+
+#include <linux/io.h>
+
+extern void __iomem *omap2_sdrc_base;
+extern void __iomem *omap2_sms_base;
+
+#define OMAP_SDRC_REGADDR(reg)			(omap2_sdrc_base + (reg))
+#define OMAP_SMS_REGADDR(reg)			(omap2_sms_base + (reg))
+
+/* SDRC global register get/set */
+
+static inline void sdrc_write_reg(u32 val, u16 reg)
+{
+	__raw_writel(val, OMAP_SDRC_REGADDR(reg));
+}
+
+static inline u32 sdrc_read_reg(u16 reg)
+{
+	return __raw_readl(OMAP_SDRC_REGADDR(reg));
+}
+
+/* SMS global register get/set */
+
+static inline void sms_write_reg(u32 val, u16 reg)
+{
+	__raw_writel(val, OMAP_SMS_REGADDR(reg));
+}
+
+static inline u32 sms_read_reg(u16 reg)
+{
+	return __raw_readl(OMAP_SMS_REGADDR(reg));
+}
+#else
+#define OMAP242X_SDRC_REGADDR(reg)					\
+			OMAP2_L3_IO_ADDRESS(OMAP2420_SDRC_BASE + (reg))
+#define OMAP243X_SDRC_REGADDR(reg)					\
+			OMAP2_L3_IO_ADDRESS(OMAP243X_SDRC_BASE + (reg))
+#define OMAP34XX_SDRC_REGADDR(reg)					\
+			OMAP2_L3_IO_ADDRESS(OMAP343X_SDRC_BASE + (reg))
+#endif	/* __ASSEMBLER__ */
+
+/* Minimum frequency that the SDRC DLL can lock at */
+#define MIN_SDRC_DLL_LOCK_FREQ		83000000
+
+/* Scale factor for fixed-point arith in omap3_core_dpll_m2_set_rate() */
+#define SDRC_MPURATE_SCALE		8
+
+/* 2^SDRC_MPURATE_BASE_SHIFT: MPU MHz that SDRC_MPURATE_LOOPS is defined for */
+#define SDRC_MPURATE_BASE_SHIFT		9
+
+/*
+ * SDRC_MPURATE_LOOPS: Number of MPU loops to execute at
+ * 2^MPURATE_BASE_SHIFT MHz for SDRC to stabilize
+ */
+#define SDRC_MPURATE_LOOPS		96
+
+#endif