ARM: OMAP2+: PRM: provide generic API for system reset

This patch combines the various prm_warm_reset calls under a common
API prm_reset_system, and adds the SoC specific implementation under
prm_ll_data.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Tested-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
index be40824acf5f..779940cb6e56 100644
--- a/arch/arm/mach-omap2/prm_common.c
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -503,6 +503,25 @@ void omap_prm_reconfigure_io_chain(void)
 }
 
 /**
+ * omap_prm_reset_system - trigger global SW reset
+ *
+ * Triggers SoC specific global warm reset to reboot the device.
+ */
+void omap_prm_reset_system(void)
+{
+        if (!prm_ll_data->reset_system) {
+                WARN_ONCE(1, "prm: %s: no mapping function defined\n",
+                          __func__);
+                return;
+        }
+
+        prm_ll_data->reset_system();
+
+        while (1)
+                cpu_relax();
+}
+
+/**
  * prm_register - register per-SoC low-level data with the PRM
  * @pld: low-level per-SoC OMAP PRM data & function pointers to register
  *