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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ppc/syslib/ppc4xx_pm.c
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/ppc/syslib/ppc4xx_pm.c')
-rw-r--r--arch/ppc/syslib/ppc4xx_pm.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/arch/ppc/syslib/ppc4xx_pm.c b/arch/ppc/syslib/ppc4xx_pm.c
new file mode 100644
index 00000000000..60a47920488
--- /dev/null
+++ b/arch/ppc/syslib/ppc4xx_pm.c
@@ -0,0 +1,47 @@
+/*
+ * Author: Armin Kuster <akuster@mvista.com>
+ *
+ * 2002 (c) MontaVista, Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ *
+ * This an attempt to get Power Management going for the IBM 4xx processor.
+ * This was derived from the ppc4xx._setup.c file
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+
+#include <asm/ibm4xx.h>
+
+void __init
+ppc4xx_pm_init(void)
+{
+
+ unsigned int value = 0;
+
+ /* turn off unused hardware to save power */
+#ifdef CONFIG_405GP
+ value |= CPM_DCP; /* CodePack */
+#endif
+
+#if !defined(CONFIG_IBM_OCP_GPIO)
+ value |= CPM_GPIO0;
+#endif
+
+#if !defined(CONFIG_PPC405_I2C_ADAP)
+ value |= CPM_IIC0;
+#ifdef CONFIG_STB03xxx
+ value |= CPM_IIC1;
+#endif
+#endif
+
+
+#if !defined(CONFIG_405_DMA)
+ value |= CPM_DMA;
+#endif
+
+ mtdcr(DCRN_CPMFR, value);
+
+}