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 000000000000..60a479204885
--- /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);
+
+}