Merge "msm: krait-regulator: Initialize headswitches for secondary CPUs" into msm-3.4
diff --git a/arch/arm/mach-msm/krait-regulator.c b/arch/arm/mach-msm/krait-regulator.c
index 4bd092a..96c4809 100644
--- a/arch/arm/mach-msm/krait-regulator.c
+++ b/arch/arm/mach-msm/krait-regulator.c
@@ -70,7 +70,7 @@
#define CORE_VOLTAGE_MIN 900000
#define KRAIT_LDO_VOLTAGE_MIN 465000
-#define KRAIT_LDO_VOLTAGE_OFFSET 460000
+#define KRAIT_LDO_VOLTAGE_OFFSET 465000
#define KRAIT_LDO_STEP 5000
#define BHS_SETTLING_DELAY_US 1
@@ -734,6 +734,22 @@
module_exit(krait_power_exit);
+void secondary_cpu_hs_init(void *base_ptr)
+{
+ /* 605mV retention and 705mV operational voltage */
+ writel_relaxed(0x1C30, base_ptr + APC_LDO_VREF_SET);
+ writel_relaxed(0x430000, base_ptr + 0x20);
+ writel_relaxed(0x21, base_ptr + 0x1C);
+
+ /* Turn on the BHS, turn off LDO Bypass and power down LDO */
+ writel_relaxed(0x403F007F, base_ptr + APC_PWR_GATE_CTL);
+ mb();
+ udelay(1);
+
+ /* Finally turn on the bypass so that BHS supplies power */
+ writel_relaxed(0x403F3F7F, base_ptr + APC_PWR_GATE_CTL);
+}
+
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("KRAIT POWER regulator driver");
MODULE_VERSION("1.0");
diff --git a/include/linux/regulator/krait-regulator.h b/include/linux/regulator/krait-regulator.h
index 1f85952..eb1c3fd 100644
--- a/include/linux/regulator/krait-regulator.h
+++ b/include/linux/regulator/krait-regulator.h
@@ -23,5 +23,6 @@
* success and error on failure.
*/
int __init krait_power_init(void);
+void secondary_cpu_hs_init(void *base_ptr);
#endif