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-rw-r--r--include/asm-ppc/config.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-ppc/config.h b/include/asm-ppc/config.h
index 049c44eaf..6d27cb1db 100644
--- a/include/asm-ppc/config.h
+++ b/include/asm-ppc/config.h
@@ -21,4 +21,12 @@
#ifndef _ASM_CONFIG_H_
#define _ASM_CONFIG_H_
+#ifndef CONFIG_MAX_MEM_MAPPED
+#if defined(CONFIG_SDRAM_PPC4xx_IBM_DDR2) && defined(CONFIG_SPD_EEPROM)
+#define CONFIG_MAX_MEM_MAPPED ((phys_size_t)2 << 30)
+#else
+#define CONFIG_MAX_MEM_MAPPED (256 << 20)
+#endif
+#endif
+
#endif