X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fppc%2Fboot%2Fsimple%2Fmisc-mv64x60.c;fp=arch%2Fppc%2Fboot%2Fsimple%2Fmisc-mv64x60.c;h=71ff20fd494a6d3c38dc3aac631c3d9f06a07561;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=7e88fc6d207d2b0dafdcdcba52429d4a8f3a52c4;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/arch/ppc/boot/simple/misc-mv64x60.c b/arch/ppc/boot/simple/misc-mv64x60.c
index 7e88fc6d2..71ff20fd4 100644
--- a/arch/ppc/boot/simple/misc-mv64x60.c
+++ b/arch/ppc/boot/simple/misc-mv64x60.c
@@ -1,6 +1,4 @@
 /*
- * arch/ppc/boot/simple/misc-mv64x60.c
- *
  * Relocate bridge's register base and call board specific routine.
  *
  * Author: Mark A. Greer <source@mvista.com>
@@ -19,6 +17,33 @@
 extern struct bi_record *decompress_kernel(unsigned long load_addr,
 	int num_words, unsigned long cksum);
 
+
+u32 size_reg[MV64x60_CPU2MEM_WINDOWS] = {
+	MV64x60_CPU2MEM_0_SIZE, MV64x60_CPU2MEM_1_SIZE,
+	MV64x60_CPU2MEM_2_SIZE, MV64x60_CPU2MEM_3_SIZE
+};
+
+/* Read mem ctlr to get the amount of mem in system */
+unsigned long
+mv64360_get_mem_size(void)
+{
+	u32	enables, i, v;
+	u32	mem = 0;
+
+	enables = in_le32((void __iomem *)CONFIG_MV64X60_NEW_BASE +
+		MV64360_CPU_BAR_ENABLE) & 0xf;
+
+	for (i=0; i<MV64x60_CPU2MEM_WINDOWS; i++)
+		if (!(enables & (1<<i))) {
+			v = in_le32((void __iomem *)CONFIG_MV64X60_NEW_BASE
+				+ size_reg[i]) & 0xffff;
+			v = (v + 1) << 16;
+			mem += v;
+		}
+
+	return mem;
+}
+
 void
 mv64x60_move_base(void __iomem *old_base, void __iomem *new_base)
 {