1 files changed, 35 insertions, 0 deletions

diff --git a/arch/mn10300/proc-mn103e010/proc-init.c b/arch/mn10300/proc-mn103e010/proc-init.c
index 0cee7878bee9..27b97980dca4 100644
--- a/arch/mn10300/proc-mn103e010/proc-init.c
+++ b/arch/mn10300/proc-mn103e010/proc-init.c
@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <asm/fpu.h>
 #include <asm/rtc.h>
+#include <asm/busctl-regs.h>
 
 /*
  * initialise the on-silicon processor peripherals
@@ -75,3 +76,37 @@ asmlinkage void __init processor_init(void)
 
         calibrate_clock();
 }
+
+/*
+ * determine the memory size and base from the memory controller regs
+ */
+void __init get_mem_info(unsigned long *mem_base, unsigned long *mem_size)
+{
+        unsigned long base, size;
+
+        *mem_base = 0;
+        *mem_size = 0;
+
+        base = SDBASE(0);
+        if (base & SDBASE_CE) {
+                size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT;
+                size = ~size + 1;
+                base &= SDBASE_CBA;
+
+                printk(KERN_INFO "SDRAM[0]: %luMb @%08lx\n", size >> 20, base);
+                *mem_size += size;
+                *mem_base = base;
+        }
+
+        base = SDBASE(1);
+        if (base & SDBASE_CE) {
+                size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT;
+                size = ~size + 1;
+                base &= SDBASE_CBA;
+
+                printk(KERN_INFO "SDRAM[1]: %luMb @%08lx\n", size >> 20, base);
+                *mem_size += size;
+                if (*mem_base == 0)
+                        *mem_base = base;
+        }
+}