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-rw-r--r--include/ppc4xx.h40
1 files changed, 40 insertions, 0 deletions
diff --git a/include/ppc4xx.h b/include/ppc4xx.h
index 76fe8727f..0a8479f26 100644
--- a/include/ppc4xx.h
+++ b/include/ppc4xx.h
@@ -22,12 +22,52 @@
#ifndef __PPC4XX_H__
#define __PPC4XX_H__
+/*
+ * Configure which SDRAM/DDR/DDR2 controller is equipped
+ */
+#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405EP) || \
+ defined(CONFIG_AP1000) || defined(CONFIG_ML2)
+#define CONFIG_SDRAM_PPC4xx_IBM_SDRAM /* IBM SDRAM controller */
+#endif
+
+#if defined(CONFIG_440GP) || defined(CONFIG_440GX) || \
+ defined(CONFIG_440EP) || defined(CONFIG_440GR)
+#define CONFIG_SDRAM_PPC4xx_IBM_DDR /* IBM DDR controller */
+#endif
+
+#if defined(CONFIG_440EPX) || defined(CONFIG_440GRX)
+#define CONFIG_SDRAM_PPC4xx_DENALI_DDR2 /* Denali DDR(2) controller */
+#endif
+
+#if defined(CONFIG_405EX) || \
+ defined(CONFIG_440SP) || defined(CONFIG_440SPE) || \
+ defined(CONFIG_460EX) || defined(CONFIG_460GT)
+#define CONFIG_SDRAM_PPC4xx_IBM_DDR2 /* IBM DDR(2) controller */
+#endif
+
#if defined(CONFIG_440)
#include <ppc440.h>
#else
#include <ppc405.h>
#endif
+#include <asm/ppc4xx-sdram.h>
+
+/*
+ * Macro for generating register field mnemonics
+ */
+#define PPC_REG_BITS 32
+#define PPC_REG_VAL(bit, value) ((value) << ((PPC_REG_BITS - 1) - (bit)))
+
+/*
+ * Elide casts when assembling register mnemonics
+ */
+#ifndef __ASSEMBLY__
+#define static_cast(type, val) (type)(val)
+#else
+#define static_cast(type, val) (val)
+#endif
+
/*
* Common stuff for 4xx (405 and 440)
*/