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authorTony Lindgren <tony@atomide.com>2012-11-09 14:13:43 -0800
committerTony Lindgren <tony@atomide.com>2012-11-09 14:13:43 -0800
commitc9d501e5cb0238910337213e12a09127221c35d8 (patch)
treea38418dc6a18b4138abbc81bb147d8aae0156f89 /arch/arm/mach-omap2/omap3-restart.c
parent7fc54fd3084457c7f11b9e2e1e3fcd19a3badc33 (diff)
parentb99db36cdf37decb1b5575c5f293d170cbbc53d6 (diff)
Merge tag 'omap-cleanup-b2-for-3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into omap-for-v3.8/cleanup-prcm
Second set of OMAP PRCM cleanups for 3.8. These patches remove the use of omap_prcm_get_reset_sources() from the OMAP watchdog driver, and remove mach-omap2/prcm.c and plat-omap/include/plat/prcm.h. Basic test logs for this branch on top of Tony's cleanup-prcm branch at commit 7fc54fd3084457c7f11b9e2e1e3fcd19a3badc33 are here: http://www.pwsan.com/omap/testlogs/prcm_cleanup_b_3.8/20121108151646/ However, cleanup-prcm at 7fc54fd3 does not include some fixes that are needed for a successful test. With several reverts, fixes, and workarounds applied, the following test logs were obtained: http://www.pwsan.com/omap/testlogs/TEST_prcm_cleanup_b_3.8/20121108151930/ which indicate that the series tests cleanly. This second pull request updates one of the patches which broke with rmk's allnoconfigs, and also updates the tag description to indicate that 7fc54fd3 is building cleanly here.
Diffstat (limited to 'arch/arm/mach-omap2/omap3-restart.c')
-rw-r--r--arch/arm/mach-omap2/omap3-restart.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap3-restart.c b/arch/arm/mach-omap2/omap3-restart.c
new file mode 100644
index 000000000000..923c582189e5
--- /dev/null
+++ b/arch/arm/mach-omap2/omap3-restart.c
@@ -0,0 +1,36 @@
+/*
+ * omap3-restart.c - Code common to all OMAP3xxx machines.
+ *
+ * Copyright (C) 2009, 2012 Texas Instruments
+ * Copyright (C) 2010 Nokia Corporation
+ * Tony Lindgren <tony@atomide.com>
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include "iomap.h"
+#include "common.h"
+#include "control.h"
+#include "prm3xxx.h"
+
+/* Global address base setup code */
+
+/**
+ * omap3xxx_restart - trigger a software restart of the SoC
+ * @mode: the "reboot mode", see arch/arm/kernel/{setup,process}.c
+ * @cmd: passed from the userspace program rebooting the system (if provided)
+ *
+ * Resets the SoC. For @cmd, see the 'reboot' syscall in
+ * kernel/sys.c. No return value.
+ */
+void omap3xxx_restart(char mode, const char *cmd)
+{
+ omap3_ctrl_write_boot_mode((cmd ? (u8)*cmd : 0));
+ omap3xxx_prm_dpll3_reset(); /* never returns */
+ while (1);
+}