This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / arch / ppc / syslib / ibm440sp_common.c

diff --git a/arch/ppc/syslib/ibm440sp_common.c b/arch/ppc/syslib/ibm440sp_common.c
new file mode 100644 (file)
index 0000000..417d4cf
--- /dev/null
+++ b/arch/ppc/syslib/ibm440sp_common.c
@@ -0,0 +1,71 @@
+/*
+ * arch/ppc/syslib/ibm440sp_common.c
+ *
+ * PPC440SP system library
+ *
+ * Matt Porter <mporter@kernel.crashing.org>
+ * Copyright 2002-2005 MontaVista Software Inc.
+ *
+ * Eugene Surovegin <eugene.surovegin@zultys.com> or <ebs@ebshome.net>
+ * Copyright (c) 2003, 2004 Zultys Technologies
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/serial.h>
+
+#include <asm/param.h>
+#include <asm/ibm44x.h>
+#include <asm/mmu.h>
+#include <asm/machdep.h>
+#include <asm/time.h>
+#include <asm/ppc4xx_pic.h>
+
+/*
+ * Read the 440SP memory controller to get size of system memory.
+ */
+unsigned long __init ibm440sp_find_end_of_memory(void)
+{
+       u32 i;
+       u32 mem_size = 0;
+
+       /* Read two bank sizes and sum */
+       for (i=0; i<2; i++)
+               switch (mfdcr(DCRN_MQ0_BS0BAS + i) & MQ0_CONFIG_SIZE_MASK) {
+                       case MQ0_CONFIG_SIZE_8M:
+                               mem_size += PPC44x_MEM_SIZE_8M;
+                               break;
+                       case MQ0_CONFIG_SIZE_16M:
+                               mem_size += PPC44x_MEM_SIZE_16M;
+                               break;
+                       case MQ0_CONFIG_SIZE_32M:
+                               mem_size += PPC44x_MEM_SIZE_32M;
+                               break;
+                       case MQ0_CONFIG_SIZE_64M:
+                               mem_size += PPC44x_MEM_SIZE_64M;
+                               break;
+                       case MQ0_CONFIG_SIZE_128M:
+                               mem_size += PPC44x_MEM_SIZE_128M;
+                               break;
+                       case MQ0_CONFIG_SIZE_256M:
+                               mem_size += PPC44x_MEM_SIZE_256M;
+                               break;
+                       case MQ0_CONFIG_SIZE_512M:
+                               mem_size += PPC44x_MEM_SIZE_512M;
+                               break;
+                       case MQ0_CONFIG_SIZE_1G:
+                               mem_size += PPC44x_MEM_SIZE_1G;
+                               break;
+                       case MQ0_CONFIG_SIZE_2G:
+                               mem_size += PPC44x_MEM_SIZE_2G;
+                               break;
+                       default:
+                               break;
+               }
+       return mem_size;
+}