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Diffstat (limited to 'drivers/power/twl4030.c')
-rw-r--r--drivers/power/twl4030.c47
1 files changed, 47 insertions, 0 deletions
diff --git a/drivers/power/twl4030.c b/drivers/power/twl4030.c
new file mode 100644
index 0000000..70d4eeb
--- /dev/null
+++ b/drivers/power/twl4030.c
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2009 Wind River Systems, Inc.
+ * Tom Rix <Tom.Rix at windriver.com>
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ * Derived from code on omapzoom, git://git.omapzoom.com/repo/u-boot.git
+ *
+ * Copyright (C) 2007-2009 Texas Instruments, Inc.
+ */
+
+#include <twl4030.h>
+
+/*
+ * Power Reset
+ */
+void twl4030_power_reset_init(void)
+{
+ u8 val = 0;
+ if (twl4030_i2c_read_u8(TWL4030_CHIP_PM_MASTER, &val,
+ TWL4030_PM_MASTER_P1_SW_EVENTS)) {
+ printf("Error:TWL4030: failed to read the power register\n");
+ printf("Could not initialize hardware reset\n");
+ } else {
+ val |= TWL4030_PM_MASTER_SW_EVENTS_STOPON_PWRON;
+ if (twl4030_i2c_write_u8(TWL4030_CHIP_PM_MASTER, val,
+ TWL4030_PM_MASTER_P1_SW_EVENTS)) {
+ printf("Error:TWL4030: failed to write the power register\n");
+ printf("Could not initialize hardware reset\n");
+ }
+ }
+}
+
+