X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fppc%2Fboot%2Fsimple%2Fmisc-cpci690.c;h=8a8614d11a32f0a7355dd03243931a062df984ab;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=ef08e86c9b25d398ddb2144bbeadcf4f2c4cd660;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/arch/ppc/boot/simple/misc-cpci690.c b/arch/ppc/boot/simple/misc-cpci690.c
index ef08e86c9..8a8614d11 100644
--- a/arch/ppc/boot/simple/misc-cpci690.c
+++ b/arch/ppc/boot/simple/misc-cpci690.c
@@ -1,6 +1,4 @@
 /*
- * arch/ppc/boot/simple/misc-cpci690.c
- *
  * Add birec data for Force CPCI690 board.
  *
  * Author: Mark A. Greer <source@mvista.com>
@@ -12,16 +10,56 @@
  */
 
 #include <linux/types.h>
+#include <asm/io.h>
 #include <platforms/cpci690.h>
 
+#define	KB	(1024UL)
+#define	MB	(1024UL*KB)
+#define	GB	(1024UL*MB)
+
 extern u32 mv64x60_console_baud;
 extern u32 mv64x60_mpsc_clk_src;
 extern u32 mv64x60_mpsc_clk_freq;
 
+u32 mag = 0xffff;
+
+unsigned long
+get_mem_size(void)
+{
+	u32	size;
+
+	switch (in_8(((void __iomem *)CPCI690_BR_BASE + CPCI690_BR_MEM_CTLR))
+			& 0x07) {
+	case 0x01:
+		size = 256*MB;
+		break;
+	case 0x02:
+		size = 512*MB;
+		break;
+	case 0x03:
+		size = 768*MB;
+		break;
+	case 0x04:
+		size = 1*GB;
+		break;
+	case 0x05:
+		size = 1*GB + 512*MB;
+		break;
+	case 0x06:
+		size = 2*GB;
+		break;
+	default:
+		size = 0;
+	}
+
+	return size;
+}
+
 void
 mv64x60_board_init(void __iomem *old_base, void __iomem *new_base)
 {
 	mv64x60_console_baud = CPCI690_MPSC_BAUD;
 	mv64x60_mpsc_clk_src = CPCI690_MPSC_CLK_SRC;
-	mv64x60_mpsc_clk_freq = CPCI690_BUS_FREQ;
+	mv64x60_mpsc_clk_freq =
+		(get_mem_size() >= (1*GB)) ? 100000000 : 133333333;
 }