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-rw-r--r--include/mpc85xx.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/include/mpc85xx.h b/include/mpc85xx.h
index 2495b99..11d8985 100644
--- a/include/mpc85xx.h
+++ b/include/mpc85xx.h
@@ -26,4 +26,46 @@
#define SCCR_DFBRG10 0x00000002 /* BRGCLK division by 64 */
#define SCCR_DFBRG11 0x00000003 /* BRGCLK division by 256 */
+/*
+ * Define default values for some CCSR macros to make header files cleaner*
+ *
+ * To completely disable CCSR relocation in a board header file, define
+ * CONFIG_SYS_CCSR_DO_NOT_RELOCATE. This will force CONFIG_SYS_CCSRBAR_PHYS
+ * to a value that is the same as CONFIG_SYS_CCSRBAR.
+ */
+
+#ifdef CONFIG_SYS_CCSRBAR_PHYS
+#error "Do not define CONFIG_SYS_CCSRBAR_PHYS directly. Use \
+CONFIG_SYS_CCSRBAR_PHYS_LOW and/or CONFIG_SYS_CCSRBAR_PHYS_HIGH instead."
+#endif
+
+#ifdef CONFIG_SYS_CCSR_DO_NOT_RELOCATE
+#undef CONFIG_SYS_CCSRBAR_PHYS_HIGH
+#undef CONFIG_SYS_CCSRBAR_PHYS_LOW
+#define CONFIG_SYS_CCSRBAR_PHYS_HIGH 0
+#endif
+
+#ifndef CONFIG_SYS_CCSRBAR
+#define CONFIG_SYS_CCSRBAR CONFIG_SYS_CCSRBAR_DEFAULT
+#endif
+
+#ifndef CONFIG_SYS_CCSRBAR_PHYS_HIGH
+#ifdef CONFIG_PHYS_64BIT
+#define CONFIG_SYS_CCSRBAR_PHYS_HIGH 0xf
+#else
+#define CONFIG_SYS_CCSRBAR_PHYS_HIGH 0
+#endif
+#endif
+
+#ifndef CONFIG_SYS_CCSRBAR_PHYS_LOW
+#define CONFIG_SYS_CCSRBAR_PHYS_LOW CONFIG_SYS_CCSRBAR_DEFAULT
+#endif
+
+#define CONFIG_SYS_CCSRBAR_PHYS ((CONFIG_SYS_CCSRBAR_PHYS_HIGH * 1ull) << 32 | \
+ CONFIG_SYS_CCSRBAR_PHYS_LOW)
+
+#ifndef CONFIG_SYS_IMMR
+#define CONFIG_SYS_IMMR CONFIG_SYS_CCSRBAR
+#endif
+
#endif /* __MPC85xx_H__ */