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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 20:50:19 +0200
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-08 20:50:19 +0200
commitdf6d3916f3b7b7e2067567a256dd4f0c1ea854a2 (patch)
tree0fdeab1ab5d566605fc99aeb5ea3f621f11e7608 /arch/powerpc/boot/44x.c
parentRemove unused variable in get_unmapped_area (diff)
parent[POWERPC] Abolish powerpc_flash_init() (diff)
downloadlinux-df6d3916f3b7b7e2067567a256dd4f0c1ea854a2.tar.xz
linux-df6d3916f3b7b7e2067567a256dd4f0c1ea854a2.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (77 commits) [POWERPC] Abolish powerpc_flash_init() [POWERPC] Early serial debug support for PPC44x [POWERPC] Support for the Ebony 440GP reference board in arch/powerpc [POWERPC] Add device tree for Ebony [POWERPC] Add powerpc/platforms/44x, disable platforms/4xx for now [POWERPC] MPIC U3/U4 MSI backend [POWERPC] MPIC MSI allocator [POWERPC] Enable MSI mappings for MPIC [POWERPC] Tell Phyp we support MSI [POWERPC] RTAS MSI implementation [POWERPC] PowerPC MSI infrastructure [POWERPC] Rip out the existing powerpc msi stubs [POWERPC] Remove use of 4level-fixup.h for ppc32 [POWERPC] Add powerpc PCI-E reset API implementation [POWERPC] Holly bootwrapper [POWERPC] Holly DTS [POWERPC] Holly defconfig [POWERPC] Add support for 750CL Holly board [POWERPC] Generalize tsi108 PCI setup [POWERPC] Generalize tsi108 PHY types ... Fixed conflict in include/asm-powerpc/kdebug.h manually Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/powerpc/boot/44x.c')
-rw-r--r--arch/powerpc/boot/44x.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/powerpc/boot/44x.c b/arch/powerpc/boot/44x.c
new file mode 100644
index 000000000000..d51377d9024f
--- /dev/null
+++ b/arch/powerpc/boot/44x.c
@@ -0,0 +1,40 @@
+/*
+ * Copyright 2007 David Gibson, IBM Corporation.
+ *
+ * Based on earlier code:
+ * 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 <stddef.h>
+#include "types.h"
+#include "string.h"
+#include "stdio.h"
+#include "ops.h"
+#include "reg.h"
+#include "dcr.h"
+
+/* Read the 44x memory controller to get size of system memory. */
+void ibm44x_fixup_memsize(void)
+{
+ int i;
+ unsigned long memsize, bank_config;
+
+ memsize = 0;
+ for (i = 0; i < ARRAY_SIZE(sdram_bxcr); i++) {
+ mtdcr(DCRN_SDRAM0_CFGADDR, sdram_bxcr[i]);
+ bank_config = mfdcr(DCRN_SDRAM0_CFGDATA);
+
+ if (bank_config & SDRAM_CONFIG_BANK_ENABLE)
+ memsize += SDRAM_CONFIG_BANK_SIZE(bank_config);
+ }
+
+ dt_fixup_memory(0, memsize);
+}