Merge tag 'for_3.8-pm-voltage' of git://git.kernel.org/pub/scm/linux/kernel/git/khilman/linux-omap-pm into omap-for-v3.8/pm

OMAP voltage layer updates towards supporting auto-retention/auto-off

17 files changed, 725 insertions, 115 deletions

diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index a89e8256fd0e..d236257626bf 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -201,6 +201,7 @@
 #define OMAP44XX_CONTROL_FUSE_MPU_OPPNITRO      0x249
 #define OMAP44XX_CONTROL_FUSE_CORE_OPP50        0x254
 #define OMAP44XX_CONTROL_FUSE_CORE_OPP100       0x257
+#define OMAP44XX_CONTROL_FUSE_CORE_OPP100OV     0x25A
 
 /* AM35XX only CONTROL_GENERAL register offsets */
 #define AM35XX_CONTROL_MSUSPENDMUX_6    (OMAP2_CONTROL_GENERAL + 0x0038)
diff --git a/arch/arm/mach-omap2/omap_opp_data.h b/arch/arm/mach-omap2/omap_opp_data.h
index c784c12f98a1..18a750e296a8 100644
--- a/arch/arm/mach-omap2/omap_opp_data.h
+++ b/arch/arm/mach-omap2/omap_opp_data.h
@@ -89,8 +89,11 @@ extern struct omap_volt_data omap34xx_vddcore_volt_data[];
 extern struct omap_volt_data omap36xx_vddmpu_volt_data[];
 extern struct omap_volt_data omap36xx_vddcore_volt_data[];
 
-extern struct omap_volt_data omap44xx_vdd_mpu_volt_data[];
-extern struct omap_volt_data omap44xx_vdd_iva_volt_data[];
-extern struct omap_volt_data omap44xx_vdd_core_volt_data[];
+extern struct omap_volt_data omap443x_vdd_mpu_volt_data[];
+extern struct omap_volt_data omap443x_vdd_iva_volt_data[];
+extern struct omap_volt_data omap443x_vdd_core_volt_data[];
+extern struct omap_volt_data omap446x_vdd_mpu_volt_data[];
+extern struct omap_volt_data omap446x_vdd_iva_volt_data[];
+extern struct omap_volt_data omap446x_vdd_core_volt_data[];
 
 #endif          /* __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H */
diff --git a/arch/arm/mach-omap2/omap_twl.c b/arch/arm/mach-omap2/omap_twl.c
index f515a1a056d5..7ff9667d9761 100644
--- a/arch/arm/mach-omap2/omap_twl.c
+++ b/arch/arm/mach-omap2/omap_twl.c
@@ -30,16 +30,6 @@
 #define OMAP3_VP_VSTEPMAX_VSTEPMAX      0x04
 #define OMAP3_VP_VLIMITTO_TIMEOUT_US    200
 
-#define OMAP3430_VP1_VLIMITTO_VDDMIN    0x14
-#define OMAP3430_VP1_VLIMITTO_VDDMAX    0x42
-#define OMAP3430_VP2_VLIMITTO_VDDMIN    0x18
-#define OMAP3430_VP2_VLIMITTO_VDDMAX    0x2c
-
-#define OMAP3630_VP1_VLIMITTO_VDDMIN    0x18
-#define OMAP3630_VP1_VLIMITTO_VDDMAX    0x3c
-#define OMAP3630_VP2_VLIMITTO_VDDMIN    0x18
-#define OMAP3630_VP2_VLIMITTO_VDDMAX    0x30
-
 #define OMAP4_SRI2C_SLAVE_ADDR          0x12
 #define OMAP4_VDD_MPU_SR_VOLT_REG       0x55
 #define OMAP4_VDD_MPU_SR_CMD_REG        0x56
@@ -53,13 +43,6 @@
 #define OMAP4_VP_VSTEPMAX_VSTEPMAX      0x04
 #define OMAP4_VP_VLIMITTO_TIMEOUT_US    200
 
-#define OMAP4_VP_MPU_VLIMITTO_VDDMIN    0xA
-#define OMAP4_VP_MPU_VLIMITTO_VDDMAX    0x39
-#define OMAP4_VP_IVA_VLIMITTO_VDDMIN    0xA
-#define OMAP4_VP_IVA_VLIMITTO_VDDMAX    0x2D
-#define OMAP4_VP_CORE_VLIMITTO_VDDMIN   0xA
-#define OMAP4_VP_CORE_VLIMITTO_VDDMAX   0x28
-
 static bool is_offset_valid;
 static u8 smps_offset;
 /*
@@ -158,16 +141,11 @@ static u8 twl6030_uv_to_vsel(unsigned long uv)
 static struct omap_voltdm_pmic omap3_mpu_pmic = {
         .slew_rate              = 4000,
         .step_size              = 12500,
-        .on_volt                = 1200000,
-        .onlp_volt              = 1000000,
-        .ret_volt               = 975000,
-        .off_volt               = 600000,
-        .volt_setup_time        = 0xfff,
         .vp_erroroffset         = OMAP3_VP_CONFIG_ERROROFFSET,
         .vp_vstepmin            = OMAP3_VP_VSTEPMIN_VSTEPMIN,
         .vp_vstepmax            = OMAP3_VP_VSTEPMAX_VSTEPMAX,
-        .vp_vddmin              = OMAP3430_VP1_VLIMITTO_VDDMIN,
-        .vp_vddmax              = OMAP3430_VP1_VLIMITTO_VDDMAX,
+        .vddmin                 = 600000,
+        .vddmax                 = 1450000,
         .vp_timeout_us          = OMAP3_VP_VLIMITTO_TIMEOUT_US,
         .i2c_slave_addr         = OMAP3_SRI2C_SLAVE_ADDR,
         .volt_reg_addr          = OMAP3_VDD_MPU_SR_CONTROL_REG,
@@ -179,16 +157,11 @@ static struct omap_voltdm_pmic omap3_mpu_pmic = {
 static struct omap_voltdm_pmic omap3_core_pmic = {
         .slew_rate              = 4000,
         .step_size              = 12500,
-        .on_volt                = 1200000,
-        .onlp_volt              = 1000000,
-        .ret_volt               = 975000,
-        .off_volt               = 600000,
-        .volt_setup_time        = 0xfff,
         .vp_erroroffset         = OMAP3_VP_CONFIG_ERROROFFSET,
         .vp_vstepmin            = OMAP3_VP_VSTEPMIN_VSTEPMIN,
         .vp_vstepmax            = OMAP3_VP_VSTEPMAX_VSTEPMAX,
-        .vp_vddmin              = OMAP3430_VP2_VLIMITTO_VDDMIN,
-        .vp_vddmax              = OMAP3430_VP2_VLIMITTO_VDDMAX,
+        .vddmin                 = 600000,
+        .vddmax                 = 1450000,
         .vp_timeout_us          = OMAP3_VP_VLIMITTO_TIMEOUT_US,
         .i2c_slave_addr         = OMAP3_SRI2C_SLAVE_ADDR,
         .volt_reg_addr          = OMAP3_VDD_CORE_SR_CONTROL_REG,
@@ -200,21 +173,17 @@ static struct omap_voltdm_pmic omap3_core_pmic = {
 static struct omap_voltdm_pmic omap4_mpu_pmic = {
         .slew_rate              = 4000,
         .step_size              = 12660,
-        .on_volt                = 1375000,
-        .onlp_volt              = 1375000,
-        .ret_volt               = 830000,
-        .off_volt               = 0,
-        .volt_setup_time        = 0,
         .vp_erroroffset         = OMAP4_VP_CONFIG_ERROROFFSET,
         .vp_vstepmin            = OMAP4_VP_VSTEPMIN_VSTEPMIN,
         .vp_vstepmax            = OMAP4_VP_VSTEPMAX_VSTEPMAX,
-        .vp_vddmin              = OMAP4_VP_MPU_VLIMITTO_VDDMIN,
-        .vp_vddmax              = OMAP4_VP_MPU_VLIMITTO_VDDMAX,
+        .vddmin                 = 0,
+        .vddmax                 = 2100000,
         .vp_timeout_us          = OMAP4_VP_VLIMITTO_TIMEOUT_US,
         .i2c_slave_addr         = OMAP4_SRI2C_SLAVE_ADDR,
         .volt_reg_addr          = OMAP4_VDD_MPU_SR_VOLT_REG,
         .cmd_reg_addr           = OMAP4_VDD_MPU_SR_CMD_REG,
         .i2c_high_speed         = true,
+        .i2c_pad_load           = 3,
         .vsel_to_uv             = twl6030_vsel_to_uv,
         .uv_to_vsel             = twl6030_uv_to_vsel,
 };
@@ -222,21 +191,17 @@ static struct omap_voltdm_pmic omap4_mpu_pmic = {
 static struct omap_voltdm_pmic omap4_iva_pmic = {
         .slew_rate              = 4000,
         .step_size              = 12660,
-        .on_volt                = 1188000,
-        .onlp_volt              = 1188000,
-        .ret_volt               = 830000,
-        .off_volt               = 0,
-        .volt_setup_time        = 0,
         .vp_erroroffset         = OMAP4_VP_CONFIG_ERROROFFSET,
         .vp_vstepmin            = OMAP4_VP_VSTEPMIN_VSTEPMIN,
         .vp_vstepmax            = OMAP4_VP_VSTEPMAX_VSTEPMAX,
-        .vp_vddmin              = OMAP4_VP_IVA_VLIMITTO_VDDMIN,
-        .vp_vddmax              = OMAP4_VP_IVA_VLIMITTO_VDDMAX,
+        .vddmin                 = 0,
+        .vddmax                 = 2100000,
         .vp_timeout_us          = OMAP4_VP_VLIMITTO_TIMEOUT_US,
         .i2c_slave_addr         = OMAP4_SRI2C_SLAVE_ADDR,
         .volt_reg_addr          = OMAP4_VDD_IVA_SR_VOLT_REG,
         .cmd_reg_addr           = OMAP4_VDD_IVA_SR_CMD_REG,
         .i2c_high_speed         = true,
+        .i2c_pad_load           = 3,
         .vsel_to_uv             = twl6030_vsel_to_uv,
         .uv_to_vsel             = twl6030_uv_to_vsel,
 };
@@ -244,20 +209,17 @@ static struct omap_voltdm_pmic omap4_iva_pmic = {
 static struct omap_voltdm_pmic omap4_core_pmic = {
         .slew_rate              = 4000,
         .step_size              = 12660,
-        .on_volt                = 1200000,
-        .onlp_volt              = 1200000,
-        .ret_volt               = 830000,
-        .off_volt               = 0,
-        .volt_setup_time        = 0,
         .vp_erroroffset         = OMAP4_VP_CONFIG_ERROROFFSET,
         .vp_vstepmin            = OMAP4_VP_VSTEPMIN_VSTEPMIN,
         .vp_vstepmax            = OMAP4_VP_VSTEPMAX_VSTEPMAX,
-        .vp_vddmin              = OMAP4_VP_CORE_VLIMITTO_VDDMIN,
-        .vp_vddmax              = OMAP4_VP_CORE_VLIMITTO_VDDMAX,
+        .vddmin                 = 0,
+        .vddmax                 = 2100000,
         .vp_timeout_us          = OMAP4_VP_VLIMITTO_TIMEOUT_US,
         .i2c_slave_addr         = OMAP4_SRI2C_SLAVE_ADDR,
         .volt_reg_addr          = OMAP4_VDD_CORE_SR_VOLT_REG,
         .cmd_reg_addr           = OMAP4_VDD_CORE_SR_CMD_REG,
+        .i2c_high_speed         = true,
+        .i2c_pad_load           = 3,
         .vsel_to_uv             = twl6030_vsel_to_uv,
         .uv_to_vsel             = twl6030_uv_to_vsel,
 };
@@ -288,13 +250,6 @@ int __init omap3_twl_init(void)
         if (!cpu_is_omap34xx())
                 return -ENODEV;
 
-        if (cpu_is_omap3630()) {
-                omap3_mpu_pmic.vp_vddmin = OMAP3630_VP1_VLIMITTO_VDDMIN;
-                omap3_mpu_pmic.vp_vddmax = OMAP3630_VP1_VLIMITTO_VDDMAX;
-                omap3_core_pmic.vp_vddmin = OMAP3630_VP2_VLIMITTO_VDDMIN;
-                omap3_core_pmic.vp_vddmax = OMAP3630_VP2_VLIMITTO_VDDMAX;
-        }
-
         /*
          * The smartreflex bit on twl4030 specifies if the setting of voltage
          * is done over the I2C_SR path. Since this setting is independent of
diff --git a/arch/arm/mach-omap2/opp4xxx_data.c b/arch/arm/mach-omap2/opp4xxx_data.c
index a9fd6d5fe79e..d470b728e720 100644
--- a/arch/arm/mach-omap2/opp4xxx_data.c
+++ b/arch/arm/mach-omap2/opp4xxx_data.c
@@ -1,7 +1,7 @@
 /*
  * OMAP4 OPP table definitions.
  *
- * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2010-2012 Texas Instruments Incorporated - http://www.ti.com/
  *      Nishanth Menon
  *      Kevin Hilman
  *      Thara Gopinath
@@ -35,7 +35,7 @@
 #define OMAP4430_VDD_MPU_OPPTURBO_UV            1313000
 #define OMAP4430_VDD_MPU_OPPNITRO_UV            1375000
 
-struct omap_volt_data omap44xx_vdd_mpu_volt_data[] = {
+struct omap_volt_data omap443x_vdd_mpu_volt_data[] = {
         VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPP50_UV, OMAP44XX_CONTROL_FUSE_MPU_OPP50, 0xf4, 0x0c),
         VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPP100_UV, OMAP44XX_CONTROL_FUSE_MPU_OPP100, 0xf9, 0x16),
         VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPPTURBO_UV, OMAP44XX_CONTROL_FUSE_MPU_OPPTURBO, 0xfa, 0x23),
@@ -47,7 +47,7 @@ struct omap_volt_data omap44xx_vdd_mpu_volt_data[] = {
 #define OMAP4430_VDD_IVA_OPP100_UV              1188000
 #define OMAP4430_VDD_IVA_OPPTURBO_UV            1300000
 
-struct omap_volt_data omap44xx_vdd_iva_volt_data[] = {
+struct omap_volt_data omap443x_vdd_iva_volt_data[] = {
         VOLT_DATA_DEFINE(OMAP4430_VDD_IVA_OPP50_UV, OMAP44XX_CONTROL_FUSE_IVA_OPP50, 0xf4, 0x0c),
         VOLT_DATA_DEFINE(OMAP4430_VDD_IVA_OPP100_UV, OMAP44XX_CONTROL_FUSE_IVA_OPP100, 0xf9, 0x16),
         VOLT_DATA_DEFINE(OMAP4430_VDD_IVA_OPPTURBO_UV, OMAP44XX_CONTROL_FUSE_IVA_OPPTURBO, 0xfa, 0x23),
@@ -57,14 +57,14 @@ struct omap_volt_data omap44xx_vdd_iva_volt_data[] = {
 #define OMAP4430_VDD_CORE_OPP50_UV              1025000
 #define OMAP4430_VDD_CORE_OPP100_UV             1200000
 
-struct omap_volt_data omap44xx_vdd_core_volt_data[] = {
+struct omap_volt_data omap443x_vdd_core_volt_data[] = {
         VOLT_DATA_DEFINE(OMAP4430_VDD_CORE_OPP50_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP50, 0xf4, 0x0c),
         VOLT_DATA_DEFINE(OMAP4430_VDD_CORE_OPP100_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP100, 0xf9, 0x16),
         VOLT_DATA_DEFINE(0, 0, 0, 0),
 };
 
 
-static struct omap_opp_def __initdata omap44xx_opp_def_list[] = {
+static struct omap_opp_def __initdata omap443x_opp_def_list[] = {
         /* MPU OPP1 - OPP50 */
         OPP_INITIALIZER("mpu", true, 300000000, OMAP4430_VDD_MPU_OPP50_UV),
         /* MPU OPP2 - OPP100 */
@@ -86,6 +86,82 @@ static struct omap_opp_def __initdata omap44xx_opp_def_list[] = {
         /* TODO: add DSP, aess, fdif, gpu */
 };
 
+#define OMAP4460_VDD_MPU_OPP50_UV               1025000
+#define OMAP4460_VDD_MPU_OPP100_UV              1200000
+#define OMAP4460_VDD_MPU_OPPTURBO_UV            1313000
+#define OMAP4460_VDD_MPU_OPPNITRO_UV            1375000
+
+struct omap_volt_data omap446x_vdd_mpu_volt_data[] = {
+        VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPP50_UV, OMAP44XX_CONTROL_FUSE_MPU_OPP50, 0xf4, 0x0c),
+        VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPP100_UV, OMAP44XX_CONTROL_FUSE_MPU_OPP100, 0xf9, 0x16),
+        VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPPTURBO_UV, OMAP44XX_CONTROL_FUSE_MPU_OPPTURBO, 0xfa, 0x23),
+        VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPPNITRO_UV, OMAP44XX_CONTROL_FUSE_MPU_OPPNITRO, 0xfa, 0x27),
+        VOLT_DATA_DEFINE(0, 0, 0, 0),
+};
+
+#define OMAP4460_VDD_IVA_OPP50_UV               1025000
+#define OMAP4460_VDD_IVA_OPP100_UV              1200000
+#define OMAP4460_VDD_IVA_OPPTURBO_UV            1313000
+#define OMAP4460_VDD_IVA_OPPNITRO_UV            1375000
+
+struct omap_volt_data omap446x_vdd_iva_volt_data[] = {
+        VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPP50_UV, OMAP44XX_CONTROL_FUSE_IVA_OPP50, 0xf4, 0x0c),
+        VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPP100_UV, OMAP44XX_CONTROL_FUSE_IVA_OPP100, 0xf9, 0x16),
+        VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPPTURBO_UV, OMAP44XX_CONTROL_FUSE_IVA_OPPTURBO, 0xfa, 0x23),
+        VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPPNITRO_UV, OMAP44XX_CONTROL_FUSE_IVA_OPPNITRO, 0xfa, 0x23),
+        VOLT_DATA_DEFINE(0, 0, 0, 0),
+};
+
+#define OMAP4460_VDD_CORE_OPP50_UV              1025000
+#define OMAP4460_VDD_CORE_OPP100_UV             1200000
+#define OMAP4460_VDD_CORE_OPP100_OV_UV          1250000
+
+struct omap_volt_data omap446x_vdd_core_volt_data[] = {
+        VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP50_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP50, 0xf4, 0x0c),
+        VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP100_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP100, 0xf9, 0x16),
+        VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP100_OV_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP100OV, 0xf9, 0x16),
+        VOLT_DATA_DEFINE(0, 0, 0, 0),
+};
+
+static struct omap_opp_def __initdata omap446x_opp_def_list[] = {
+        /* MPU OPP1 - OPP50 */
+        OPP_INITIALIZER("mpu", true, 350000000, OMAP4460_VDD_MPU_OPP50_UV),
+        /* MPU OPP2 - OPP100 */
+        OPP_INITIALIZER("mpu", true, 700000000, OMAP4460_VDD_MPU_OPP100_UV),
+        /* MPU OPP3 - OPP-Turbo */
+        OPP_INITIALIZER("mpu", true, 920000000, OMAP4460_VDD_MPU_OPPTURBO_UV),
+        /*
+         * MPU OPP4 - OPP-Nitro + Disabled as the reference schematics
+         * recommends TPS623631 - confirm and enable the opp in board file
+         * XXX: May be we should enable these based on mpu capability and
+         * Exception board files disable it...
+         */
+        OPP_INITIALIZER("mpu", false, 1200000000, OMAP4460_VDD_MPU_OPPNITRO_UV),
+        /* MPU OPP4 - OPP-Nitro SpeedBin */
+        OPP_INITIALIZER("mpu", false, 1500000000, OMAP4460_VDD_MPU_OPPNITRO_UV),
+        /* L3 OPP1 - OPP50 */
+        OPP_INITIALIZER("l3_main_1", true, 100000000, OMAP4460_VDD_CORE_OPP50_UV),
+        /* L3 OPP2 - OPP100 */
+        OPP_INITIALIZER("l3_main_1", true, 200000000, OMAP4460_VDD_CORE_OPP100_UV),
+        /* IVA OPP1 - OPP50 */
+        OPP_INITIALIZER("iva", true, 133000000, OMAP4460_VDD_IVA_OPP50_UV),
+        /* IVA OPP2 - OPP100 */
+        OPP_INITIALIZER("iva", true, 266100000, OMAP4460_VDD_IVA_OPP100_UV),
+        /*
+         * IVA OPP3 - OPP-Turbo + Disabled as the reference schematics
+         * recommends Phoenix VCORE2 which can supply only 600mA - so the ones
+         * above this OPP frequency, even though OMAP is capable, should be
+         * enabled by board file which is sure of the chip power capability
+         */
+        OPP_INITIALIZER("iva", false, 332000000, OMAP4460_VDD_IVA_OPPTURBO_UV),
+        /* IVA OPP4 - OPP-Nitro */
+        OPP_INITIALIZER("iva", false, 430000000, OMAP4460_VDD_IVA_OPPNITRO_UV),
+        /* IVA OPP5 - OPP-Nitro SpeedBin*/
+        OPP_INITIALIZER("iva", false, 500000000, OMAP4460_VDD_IVA_OPPNITRO_UV),
+
+        /* TODO: add DSP, aess, fdif, gpu */
+};
+
 /**
  * omap4_opp_init() - initialize omap4 opp table
  */
@@ -93,12 +169,12 @@ int __init omap4_opp_init(void)
 {
         int r = -ENODEV;
 
-        if (!cpu_is_omap443x())
-                return r;
-
-        r = omap_init_opp_table(omap44xx_opp_def_list,
-                        ARRAY_SIZE(omap44xx_opp_def_list));
-
+        if (cpu_is_omap443x())
+                r = omap_init_opp_table(omap443x_opp_def_list,
+                        ARRAY_SIZE(omap443x_opp_def_list));
+        else if (cpu_is_omap446x())
+                r = omap_init_opp_table(omap446x_opp_def_list,
+                        ARRAY_SIZE(omap446x_opp_def_list));
         return r;
 }
 device_initcall(omap4_opp_init);
diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c
index ea61c32957bd..109a02e02d72 100644
--- a/arch/arm/mach-omap2/pm.c
+++ b/arch/arm/mach-omap2/pm.c
@@ -39,6 +39,36 @@ static struct omap_device_pm_latency *pm_lats;
  */
 int (*omap_pm_suspend)(void);
 
+/**
+ * struct omap2_oscillator - Describe the board main oscillator latencies
+ * @startup_time: oscillator startup latency
+ * @shutdown_time: oscillator shutdown latency
+ */
+struct omap2_oscillator {
+        u32 startup_time;
+        u32 shutdown_time;
+};
+
+static struct omap2_oscillator oscillator = {
+        .startup_time = ULONG_MAX,
+        .shutdown_time = ULONG_MAX,
+};
+
+void omap_pm_setup_oscillator(u32 tstart, u32 tshut)
+{
+        oscillator.startup_time = tstart;
+        oscillator.shutdown_time = tshut;
+}
+
+void omap_pm_get_oscillator(u32 *tstart, u32 *tshut)
+{
+        if (!tstart || !tshut)
+                return;
+
+        *tstart = oscillator.startup_time;
+        *tshut = oscillator.shutdown_time;
+}
+
 static int __init _init_omap_device(char *name)
 {
         struct omap_hwmod *oh;
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 67d66131cfa7..4db7b238a0d5 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -129,4 +129,14 @@ static inline int omap4_twl_init(void)
 }
 #endif
 
+#ifdef CONFIG_PM
+extern void omap_pm_setup_oscillator(u32 tstart, u32 tshut);
+extern void omap_pm_get_oscillator(u32 *tstart, u32 *tshut);
+extern void omap_pm_setup_sr_i2c_pcb_length(u32 mm);
+#else
+static inline void omap_pm_setup_oscillator(u32 tstart, u32 tshut) { }
+static inline void omap_pm_get_oscillator(u32 *tstart, u32 *tshut) { }
+static inline void omap_pm_setup_sr_i2c_pcb_length(u32 mm) { }
+#endif
+
 #endif
diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c
index 880249b17012..687aa86c0d5e 100644
--- a/arch/arm/mach-omap2/vc.c
+++ b/arch/arm/mach-omap2/vc.c
@@ -11,13 +11,20 @@
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/bug.h>
+#include <linux/io.h>
 
+#include <asm/div64.h>
+
+#include "iomap.h"
 #include "soc.h"
 #include "voltage.h"
 #include "vc.h"
 #include "prm-regbits-34xx.h"
 #include "prm-regbits-44xx.h"
 #include "prm44xx.h"
+#include "pm.h"
+#include "scrm44xx.h"
+#include "control.h"
 
 /**
  * struct omap_vc_channel_cfg - describe the cfg_channel bitfield
@@ -63,6 +70,9 @@ static struct omap_vc_channel_cfg vc_mutant_channel_cfg = {
 };
 
 static struct omap_vc_channel_cfg *vc_cfg_bits;
+
+/* Default I2C trace length on pcb, 6.3cm. Used for capacitance calculations. */
+static u32 sr_i2c_pcb_length = 63;
 #define CFG_CHANNEL_MASK 0x1f
 
 /**
@@ -135,6 +145,8 @@ int omap_vc_pre_scale(struct voltagedomain *voltdm,
         vc_cmdval |= (*target_vsel << vc->common->cmd_on_shift);
         voltdm->write(vc_cmdval, vc->cmdval_reg);
 
+        voltdm->vc_param->on = target_volt;
+
         omap_vp_update_errorgain(voltdm, target_volt);
 
         return 0;
@@ -202,46 +214,389 @@ int omap_vc_bypass_scale(struct voltagedomain *voltdm,
         return 0;
 }
 
-static void __init omap3_vfsm_init(struct voltagedomain *voltdm)
+/* Convert microsecond value to number of 32kHz clock cycles */
+static inline u32 omap_usec_to_32k(u32 usec)
+{
+        return DIV_ROUND_UP_ULL(32768ULL * (u64)usec, 1000000ULL);
+}
+
+/* Set oscillator setup time for omap3 */
+static void omap3_set_clksetup(u32 usec, struct voltagedomain *voltdm)
+{
+        voltdm->write(omap_usec_to_32k(usec), OMAP3_PRM_CLKSETUP_OFFSET);
+}
+
+/**
+ * omap3_set_i2c_timings - sets i2c sleep timings for a channel
+ * @voltdm: channel to configure
+ * @off_mode: select whether retention or off mode values used
+ *
+ * Calculates and sets up voltage controller to use I2C based
+ * voltage scaling for sleep modes. This can be used for either off mode
+ * or retention. Off mode has additionally an option to use sys_off_mode
+ * pad, which uses a global signal to program the whole power IC to
+ * off-mode.
+ */
+static void omap3_set_i2c_timings(struct voltagedomain *voltdm, bool off_mode)
 {
+        unsigned long voltsetup1;
+        u32 tgt_volt;
+
+        /*
+         * Oscillator is shut down only if we are using sys_off_mode pad,
+         * thus we set a minimal setup time here
+         */
+        omap3_set_clksetup(1, voltdm);
+
+        if (off_mode)
+                tgt_volt = voltdm->vc_param->off;
+        else
+                tgt_volt = voltdm->vc_param->ret;
+
+        voltsetup1 = (voltdm->vc_param->on - tgt_volt) /
+                        voltdm->pmic->slew_rate;
+
+        voltsetup1 = voltsetup1 * voltdm->sys_clk.rate / 8 / 1000000 + 1;
+
+        voltdm->rmw(voltdm->vfsm->voltsetup_mask,
+                voltsetup1 << __ffs(voltdm->vfsm->voltsetup_mask),
+                voltdm->vfsm->voltsetup_reg);
+
         /*
-         * Voltage Manager FSM parameters init
-         * XXX This data should be passed in from the board file
+         * pmic is not controlling the voltage scaling during retention,
+         * thus set voltsetup2 to 0
          */
-        voltdm->write(OMAP3_CLKSETUP, OMAP3_PRM_CLKSETUP_OFFSET);
-        voltdm->write(OMAP3_VOLTOFFSET, OMAP3_PRM_VOLTOFFSET_OFFSET);
-        voltdm->write(OMAP3_VOLTSETUP2, OMAP3_PRM_VOLTSETUP2_OFFSET);
+        voltdm->write(0, OMAP3_PRM_VOLTSETUP2_OFFSET);
 }
 
-static void __init omap3_vc_init_channel(struct voltagedomain *voltdm)
+/**
+ * omap3_set_off_timings - sets off-mode timings for a channel
+ * @voltdm: channel to configure
+ *
+ * Calculates and sets up off-mode timings for a channel. Off-mode
+ * can use either I2C based voltage scaling, or alternatively
+ * sys_off_mode pad can be used to send a global command to power IC.
+ * This function first checks which mode is being used, and calls
+ * omap3_set_i2c_timings() if the system is using I2C control mode.
+ * sys_off_mode has the additional benefit that voltages can be
+ * scaled to zero volt level with TWL4030 / TWL5030, I2C can only
+ * scale to 600mV.
+ */
+static void omap3_set_off_timings(struct voltagedomain *voltdm)
 {
-        static bool is_initialized;
+        unsigned long clksetup;
+        unsigned long voltsetup2;
+        unsigned long voltsetup2_old;
+        u32 val;
+        u32 tstart, tshut;
 
-        if (is_initialized)
+        /* check if sys_off_mode is used to control off-mode voltages */
+        val = voltdm->read(OMAP3_PRM_VOLTCTRL_OFFSET);
+        if (!(val & OMAP3430_SEL_OFF_MASK)) {
+                /* No, omap is controlling them over I2C */
+                omap3_set_i2c_timings(voltdm, true);
                 return;
+        }
+
+        omap_pm_get_oscillator(&tstart, &tshut);
+        omap3_set_clksetup(tstart, voltdm);
+
+        clksetup = voltdm->read(OMAP3_PRM_CLKSETUP_OFFSET);
+
+        /* voltsetup 2 in us */
+        voltsetup2 = voltdm->vc_param->on / voltdm->pmic->slew_rate;
+
+        /* convert to 32k clk cycles */
+        voltsetup2 = DIV_ROUND_UP(voltsetup2 * 32768, 1000000);
+
+        voltsetup2_old = voltdm->read(OMAP3_PRM_VOLTSETUP2_OFFSET);
+
+        /*
+         * Update voltsetup2 if higher than current value (needed because
+         * we have multiple channels with different ramp times), also
+         * update voltoffset always to value recommended by TRM
+         */
+        if (voltsetup2 > voltsetup2_old) {
+                voltdm->write(voltsetup2, OMAP3_PRM_VOLTSETUP2_OFFSET);
+                voltdm->write(clksetup - voltsetup2,
+                        OMAP3_PRM_VOLTOFFSET_OFFSET);
+        } else
+                voltdm->write(clksetup - voltsetup2_old,
+                        OMAP3_PRM_VOLTOFFSET_OFFSET);
+
+        /*
+         * omap is not controlling voltage scaling during off-mode,
+         * thus set voltsetup1 to 0
+         */
+        voltdm->rmw(voltdm->vfsm->voltsetup_mask, 0,
+                voltdm->vfsm->voltsetup_reg);
+
+        /* voltoffset must be clksetup minus voltsetup2 according to TRM */
+        voltdm->write(clksetup - voltsetup2, OMAP3_PRM_VOLTOFFSET_OFFSET);
+}
+
+static void __init omap3_vc_init_channel(struct voltagedomain *voltdm)
+{
+        omap3_set_off_timings(voltdm);
+}
+
+/**
+ * omap4_calc_volt_ramp - calculates voltage ramping delays on omap4
+ * @voltdm: channel to calculate values for
+ * @voltage_diff: voltage difference in microvolts
+ *
+ * Calculates voltage ramp prescaler + counter values for a voltage
+ * difference on omap4. Returns a field value suitable for writing to
+ * VOLTSETUP register for a channel in following format:
+ * bits[8:9] prescaler ... bits[0:5] counter. See OMAP4 TRM for reference.
+ */
+static u32 omap4_calc_volt_ramp(struct voltagedomain *voltdm, u32 voltage_diff)
+{
+        u32 prescaler;
+        u32 cycles;
+        u32 time;
+
+        time = voltage_diff / voltdm->pmic->slew_rate;
+
+        cycles = voltdm->sys_clk.rate / 1000 * time / 1000;
+
+        cycles /= 64;
+        prescaler = 0;
+
+        /* shift to next prescaler until no overflow */
+
+        /* scale for div 256 = 64 * 4 */
+        if (cycles > 63) {
+                cycles /= 4;
+                prescaler++;
+        }
+
+        /* scale for div 512 = 256 * 2 */
+        if (cycles > 63) {
+                cycles /= 2;
+                prescaler++;
+        }
+
+        /* scale for div 2048 = 512 * 4 */
+        if (cycles > 63) {
+                cycles /= 4;
+                prescaler++;
+        }
+
+        /* check for overflow => invalid ramp time */
+        if (cycles > 63) {
+                pr_warn("%s: invalid setuptime for vdd_%s\n", __func__,
+                        voltdm->name);
+                return 0;
+        }
+
+        cycles++;
 
-        omap3_vfsm_init(voltdm);
+        return (prescaler << OMAP4430_RAMP_UP_PRESCAL_SHIFT) |
+                (cycles << OMAP4430_RAMP_UP_COUNT_SHIFT);
+}
+
+/**
+ * omap4_usec_to_val_scrm - convert microsecond value to SCRM module bitfield
+ * @usec: microseconds
+ * @shift: number of bits to shift left
+ * @mask: bitfield mask
+ *
+ * Converts microsecond value to OMAP4 SCRM bitfield. Bitfield is
+ * shifted to requested position, and checked agains the mask value.
+ * If larger, forced to the max value of the field (i.e. the mask itself.)
+ * Returns the SCRM bitfield value.
+ */
+static u32 omap4_usec_to_val_scrm(u32 usec, int shift, u32 mask)
+{
+        u32 val;
+
+        val = omap_usec_to_32k(usec) << shift;
 
-        is_initialized = true;
+        /* Check for overflow, if yes, force to max value */
+        if (val > mask)
+                val = mask;
+
+        return val;
 }
 
+/**
+ * omap4_set_timings - set voltage ramp timings for a channel
+ * @voltdm: channel to configure
+ * @off_mode: whether off-mode values are used
+ *
+ * Calculates and sets the voltage ramp up / down values for a channel.
+ */
+static void omap4_set_timings(struct voltagedomain *voltdm, bool off_mode)
+{
+        u32 val;
+        u32 ramp;
+        int offset;
+        u32 tstart, tshut;
+
+        if (off_mode) {
+                ramp = omap4_calc_volt_ramp(voltdm,
+                        voltdm->vc_param->on - voltdm->vc_param->off);
+                offset = voltdm->vfsm->voltsetup_off_reg;
+        } else {
+                ramp = omap4_calc_volt_ramp(voltdm,
+                        voltdm->vc_param->on - voltdm->vc_param->ret);
+                offset = voltdm->vfsm->voltsetup_reg;
+        }
+
+        if (!ramp)
+                return;
+
+        val = voltdm->read(offset);
+
+        val |= ramp << OMAP4430_RAMP_DOWN_COUNT_SHIFT;
+
+        val |= ramp << OMAP4430_RAMP_UP_COUNT_SHIFT;
+
+        voltdm->write(val, offset);
+
+        omap_pm_get_oscillator(&tstart, &tshut);
+
+        val = omap4_usec_to_val_scrm(tstart, OMAP4_SETUPTIME_SHIFT,
+                OMAP4_SETUPTIME_MASK);
+        val |= omap4_usec_to_val_scrm(tshut, OMAP4_DOWNTIME_SHIFT,
+                OMAP4_DOWNTIME_MASK);
+
+        __raw_writel(val, OMAP4_SCRM_CLKSETUPTIME);
+}
 
 /* OMAP4 specific voltage init functions */
 static void __init omap4_vc_init_channel(struct voltagedomain *voltdm)
 {
-        static bool is_initialized;
-        u32 vc_val;
+        omap4_set_timings(voltdm, true);
+        omap4_set_timings(voltdm, false);
+}
+
+struct i2c_init_data {
+        u8 loadbits;
+        u8 load;
+        u8 hsscll_38_4;
+        u8 hsscll_26;
+        u8 hsscll_19_2;
+        u8 hsscll_16_8;
+        u8 hsscll_12;
+};
 
-        if (is_initialized)
+static const __initdata struct i2c_init_data omap4_i2c_timing_data[] = {
+        {
+                .load = 50,
+                .loadbits = 0x3,
+                .hsscll_38_4 = 13,
+                .hsscll_26 = 11,
+                .hsscll_19_2 = 9,
+                .hsscll_16_8 = 9,
+                .hsscll_12 = 8,
+        },
+        {
+                .load = 25,
+                .loadbits = 0x2,
+                .hsscll_38_4 = 13,
+                .hsscll_26 = 11,
+                .hsscll_19_2 = 9,
+                .hsscll_16_8 = 9,
+                .hsscll_12 = 8,
+        },
+        {
+                .load = 12,
+                .loadbits = 0x1,
+                .hsscll_38_4 = 11,
+                .hsscll_26 = 10,
+                .hsscll_19_2 = 9,
+                .hsscll_16_8 = 9,
+                .hsscll_12 = 8,
+        },
+        {
+                .load = 0,
+                .loadbits = 0x0,
+                .hsscll_38_4 = 12,
+                .hsscll_26 = 10,
+                .hsscll_19_2 = 9,
+                .hsscll_16_8 = 8,
+                .hsscll_12 = 8,
+        },
+};
+
+/**
+ * omap4_vc_i2c_timing_init - sets up board I2C timing parameters
+ * @voltdm: voltagedomain pointer to get data from
+ *
+ * Use PMIC + board supplied settings for calculating the total I2C
+ * channel capacitance and set the timing parameters based on this.
+ * Pre-calculated values are provided in data tables, as it is not
+ * too straightforward to calculate these runtime.
+ */
+static void __init omap4_vc_i2c_timing_init(struct voltagedomain *voltdm)
+{
+        u32 capacitance;
+        u32 val;
+        u16 hsscll;
+        const struct i2c_init_data *i2c_data;
+
+        if (!voltdm->pmic->i2c_high_speed) {
+                pr_warn("%s: only high speed supported!\n", __func__);
                 return;
+        }
+
+        /* PCB trace capacitance, 0.125pF / mm => mm / 8 */
+        capacitance = DIV_ROUND_UP(sr_i2c_pcb_length, 8);
+
+        /* OMAP pad capacitance */
+        capacitance += 4;
+
+        /* PMIC pad capacitance */
+        capacitance += voltdm->pmic->i2c_pad_load;
+
+        /* Search for capacitance match in the table */
+        i2c_data = omap4_i2c_timing_data;
+
+        while (i2c_data->load > capacitance)
+                i2c_data++;
+
+        /* Select proper values based on sysclk frequency */
+        switch (voltdm->sys_clk.rate) {
+        case 38400000:
+                hsscll = i2c_data->hsscll_38_4;
+                break;
+        case 26000000:
+                hsscll = i2c_data->hsscll_26;
+                break;
+        case 19200000:
+                hsscll = i2c_data->hsscll_19_2;
+                break;
+        case 16800000:
+                hsscll = i2c_data->hsscll_16_8;
+                break;
+        case 12000000:
+                hsscll = i2c_data->hsscll_12;
+                break;
+        default:
+                pr_warn("%s: unsupported sysclk rate: %d!\n", __func__,
+                        voltdm->sys_clk.rate);
+                return;
+        }
 
-        /* XXX These are magic numbers and do not belong! */
-        vc_val = (0x60 << OMAP4430_SCLL_SHIFT | 0x26 << OMAP4430_SCLH_SHIFT);
-        voltdm->write(vc_val, OMAP4_PRM_VC_CFG_I2C_CLK_OFFSET);
+        /* Loadbits define pull setup for the I2C channels */
+        val = i2c_data->loadbits << 25 | i2c_data->loadbits << 29;
 
-        is_initialized = true;
+        /* Write to SYSCTRL_PADCONF_WKUP_CTRL_I2C_2 to setup I2C pull */
+        __raw_writel(val, OMAP2_L4_IO_ADDRESS(OMAP4_CTRL_MODULE_PAD_WKUP +
+                                OMAP4_CTRL_MODULE_PAD_WKUP_CONTROL_I2C_2));
+
+        /* HSSCLH can always be zero */
+        val = hsscll << OMAP4430_HSSCLL_SHIFT;
+        val |= (0x28 << OMAP4430_SCLL_SHIFT | 0x2c << OMAP4430_SCLH_SHIFT);
+
+        /* Write setup times to I2C config register */
+        voltdm->write(val, OMAP4_PRM_VC_CFG_I2C_CLK_OFFSET);
 }
 
+
+
 /**
  * omap_vc_i2c_init - initialize I2C interface to PMIC
  * @voltdm: voltage domain containing VC data
@@ -281,9 +636,49 @@ static void __init omap_vc_i2c_init(struct voltagedomain *voltdm)
                             mcode << __ffs(vc->common->i2c_mcode_mask),
                             vc->common->i2c_cfg_reg);
 
+        if (cpu_is_omap44xx())
+                omap4_vc_i2c_timing_init(voltdm);
+
         initialized = true;
 }
 
+/**
+ * omap_vc_calc_vsel - calculate vsel value for a channel
+ * @voltdm: channel to calculate value for
+ * @uvolt: microvolt value to convert to vsel
+ *
+ * Converts a microvolt value to vsel value for the used PMIC.
+ * This checks whether the microvolt value is out of bounds, and
+ * adjusts the value accordingly. If unsupported value detected,
+ * warning is thrown.
+ */
+static u8 omap_vc_calc_vsel(struct voltagedomain *voltdm, u32 uvolt)
+{
+        if (voltdm->pmic->vddmin > uvolt)
+                uvolt = voltdm->pmic->vddmin;
+        if (voltdm->pmic->vddmax < uvolt) {
+                WARN(1, "%s: voltage not supported by pmic: %u vs max %u\n",
+                        __func__, uvolt, voltdm->pmic->vddmax);
+                /* Lets try maximum value anyway */
+                uvolt = voltdm->pmic->vddmax;
+        }
+
+        return voltdm->pmic->uv_to_vsel(uvolt);
+}
+
+/**
+ * omap_pm_setup_sr_i2c_pcb_length - set length of SR I2C traces on PCB
+ * @mm: length of the PCB trace in millimetres
+ *
+ * Sets the PCB trace length for the I2C channel. By default uses 63mm.
+ * This is needed for properly calculating the capacitance value for
+ * the PCB trace, and for setting the SR I2C channel timing parameters.
+ */
+void __init omap_pm_setup_sr_i2c_pcb_length(u32 mm)
+{
+        sr_i2c_pcb_length = mm;
+}
+
 void __init omap_vc_init_channel(struct voltagedomain *voltdm)
 {
         struct omap_vc_channel *vc = voltdm->vc;
@@ -311,7 +706,6 @@ void __init omap_vc_init_channel(struct voltagedomain *voltdm)
         vc->i2c_slave_addr = voltdm->pmic->i2c_slave_addr;
         vc->volt_reg_addr = voltdm->pmic->volt_reg_addr;
         vc->cmd_reg_addr = voltdm->pmic->cmd_reg_addr;
-        vc->setup_time = voltdm->pmic->volt_setup_time;
 
         /* Configure the i2c slave address for this VC */
         voltdm->rmw(vc->smps_sa_mask,
@@ -331,14 +725,18 @@ void __init omap_vc_init_channel(struct voltagedomain *voltdm)
                 voltdm->rmw(vc->smps_cmdra_mask,
                             vc->cmd_reg_addr << __ffs(vc->smps_cmdra_mask),
                             vc->smps_cmdra_reg);
-                vc->cfg_channel |= vc_cfg_bits->rac | vc_cfg_bits->racen;
+                vc->cfg_channel |= vc_cfg_bits->rac;
         }
 
+        if (vc->cmd_reg_addr == vc->volt_reg_addr)
+                vc->cfg_channel |= vc_cfg_bits->racen;
+
         /* Set up the on, inactive, retention and off voltage */
-        on_vsel = voltdm->pmic->uv_to_vsel(voltdm->pmic->on_volt);
-        onlp_vsel = voltdm->pmic->uv_to_vsel(voltdm->pmic->onlp_volt);
-        ret_vsel = voltdm->pmic->uv_to_vsel(voltdm->pmic->ret_volt);
-        off_vsel = voltdm->pmic->uv_to_vsel(voltdm->pmic->off_volt);
+        on_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->on);
+        onlp_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->onlp);
+        ret_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->ret);
+        off_vsel = omap_vc_calc_vsel(voltdm, voltdm->vc_param->off);
+
         val = ((on_vsel << vc->common->cmd_on_shift) |
                (onlp_vsel << vc->common->cmd_onlp_shift) |
                (ret_vsel << vc->common->cmd_ret_shift) |
@@ -349,11 +747,6 @@ void __init omap_vc_init_channel(struct voltagedomain *voltdm)
         /* Channel configuration */
         omap_vc_config_channel(voltdm);
 
-        /* Configure the setup times */
-        voltdm->rmw(voltdm->vfsm->voltsetup_mask,
-                    vc->setup_time << __ffs(voltdm->vfsm->voltsetup_mask),
-                    voltdm->vfsm->voltsetup_reg);
-
         omap_vc_i2c_init(voltdm);
 
         if (cpu_is_omap34xx())
diff --git a/arch/arm/mach-omap2/vc.h b/arch/arm/mach-omap2/vc.h
index 478bf6b432c4..91c8d75bf2ea 100644
--- a/arch/arm/mach-omap2/vc.h
+++ b/arch/arm/mach-omap2/vc.h
@@ -86,7 +86,6 @@ struct omap_vc_channel {
         u16 i2c_slave_addr;
         u16 volt_reg_addr;
         u16 cmd_reg_addr;
-        u16 setup_time;
         u8 cfg_channel;
         bool i2c_high_speed;
 
@@ -111,6 +110,13 @@ extern struct omap_vc_channel omap4_vc_mpu;
 extern struct omap_vc_channel omap4_vc_iva;
 extern struct omap_vc_channel omap4_vc_core;
 
+extern struct omap_vc_param omap3_mpu_vc_data;
+extern struct omap_vc_param omap3_core_vc_data;
+
+extern struct omap_vc_param omap4_mpu_vc_data;
+extern struct omap_vc_param omap4_iva_vc_data;
+extern struct omap_vc_param omap4_core_vc_data;
+
 void omap_vc_init_channel(struct voltagedomain *voltdm);
 int omap_vc_pre_scale(struct voltagedomain *voltdm,
                       unsigned long target_volt,
diff --git a/arch/arm/mach-omap2/vc3xxx_data.c b/arch/arm/mach-omap2/vc3xxx_data.c
index 5d8eaf31569c..75bc4aa22b3a 100644
--- a/arch/arm/mach-omap2/vc3xxx_data.c
+++ b/arch/arm/mach-omap2/vc3xxx_data.c
@@ -71,3 +71,25 @@ struct omap_vc_channel omap3_vc_core = {
         .smps_cmdra_mask = OMAP3430_CMDRA1_MASK,
         .cfg_channel_sa_shift = OMAP3430_PRM_VC_SMPS_SA_SA1_SHIFT,
 };
+
+/*
+ * Voltage levels for different operating modes: on, sleep, retention and off
+ */
+#define OMAP3_ON_VOLTAGE_UV             1200000
+#define OMAP3_ONLP_VOLTAGE_UV           1000000
+#define OMAP3_RET_VOLTAGE_UV            975000
+#define OMAP3_OFF_VOLTAGE_UV            600000
+
+struct omap_vc_param omap3_mpu_vc_data = {
+        .on             = OMAP3_ON_VOLTAGE_UV,
+        .onlp           = OMAP3_ONLP_VOLTAGE_UV,
+        .ret            = OMAP3_RET_VOLTAGE_UV,
+        .off            = OMAP3_OFF_VOLTAGE_UV,
+};
+
+struct omap_vc_param omap3_core_vc_data = {
+        .on             = OMAP3_ON_VOLTAGE_UV,
+        .onlp           = OMAP3_ONLP_VOLTAGE_UV,
+        .ret            = OMAP3_RET_VOLTAGE_UV,
+        .off            = OMAP3_OFF_VOLTAGE_UV,
+};
diff --git a/arch/arm/mach-omap2/vc44xx_data.c b/arch/arm/mach-omap2/vc44xx_data.c
index d70b930f2739..085e5d6a04fd 100644
--- a/arch/arm/mach-omap2/vc44xx_data.c
+++ b/arch/arm/mach-omap2/vc44xx_data.c
@@ -87,3 +87,31 @@ struct omap_vc_channel omap4_vc_core = {
         .cfg_channel_sa_shift = OMAP4430_SA_VDD_CORE_L_SHIFT,
 };
 
+/*
+ * Voltage levels for different operating modes: on, sleep, retention and off
+ */
+#define OMAP4_ON_VOLTAGE_UV                     1375000
+#define OMAP4_ONLP_VOLTAGE_UV                   1375000
+#define OMAP4_RET_VOLTAGE_UV                    837500
+#define OMAP4_OFF_VOLTAGE_UV                    0
+
+struct omap_vc_param omap4_mpu_vc_data = {
+        .on                     = OMAP4_ON_VOLTAGE_UV,
+        .onlp                   = OMAP4_ONLP_VOLTAGE_UV,
+        .ret                    = OMAP4_RET_VOLTAGE_UV,
+        .off                    = OMAP4_OFF_VOLTAGE_UV,
+};
+
+struct omap_vc_param omap4_iva_vc_data = {
+        .on                     = OMAP4_ON_VOLTAGE_UV,
+        .onlp                   = OMAP4_ONLP_VOLTAGE_UV,
+        .ret                    = OMAP4_RET_VOLTAGE_UV,
+        .off                    = OMAP4_OFF_VOLTAGE_UV,
+};
+
+struct omap_vc_param omap4_core_vc_data = {
+        .on                     = OMAP4_ON_VOLTAGE_UV,
+        .onlp                   = OMAP4_ONLP_VOLTAGE_UV,
+        .ret                    = OMAP4_RET_VOLTAGE_UV,
+        .off                    = OMAP4_OFF_VOLTAGE_UV,
+};
diff --git a/arch/arm/mach-omap2/voltage.h b/arch/arm/mach-omap2/voltage.h
index 7283b7ed7de8..a0ce4f10ff13 100644
--- a/arch/arm/mach-omap2/voltage.h
+++ b/arch/arm/mach-omap2/voltage.h
@@ -40,12 +40,14 @@ struct powerdomain;
  * data
  * @voltsetup_mask: SETUP_TIME* bitmask in the PRM_VOLTSETUP* register
  * @voltsetup_reg: register offset of PRM_VOLTSETUP from PRM base
+ * @voltsetup_off_reg: register offset of PRM_VOLTSETUP_OFF from PRM base
  *
  * XXX What about VOLTOFFSET/VOLTCTRL?
  */
 struct omap_vfsm_instance {
         u32 voltsetup_mask;
         u8 voltsetup_reg;
+        u8 voltsetup_off_reg;
 };
 
 /**
@@ -74,6 +76,8 @@ struct voltagedomain {
         const struct omap_vfsm_instance *vfsm;
         struct omap_vp_instance *vp;
         struct omap_voltdm_pmic *pmic;
+        struct omap_vp_param *vp_param;
+        struct omap_vc_param *vc_param;
 
         /* VC/VP register access functions: SoC specific */
         u32 (*read) (u8 offset);
@@ -92,6 +96,24 @@ struct voltagedomain {
         struct omap_volt_data *volt_data;
 };
 
+/* Min and max voltages from OMAP perspective */
+#define OMAP3430_VP1_VLIMITTO_VDDMIN    850000
+#define OMAP3430_VP1_VLIMITTO_VDDMAX    1425000
+#define OMAP3430_VP2_VLIMITTO_VDDMIN    900000
+#define OMAP3430_VP2_VLIMITTO_VDDMAX    1150000
+
+#define OMAP3630_VP1_VLIMITTO_VDDMIN    900000
+#define OMAP3630_VP1_VLIMITTO_VDDMAX    1350000
+#define OMAP3630_VP2_VLIMITTO_VDDMIN    900000
+#define OMAP3630_VP2_VLIMITTO_VDDMAX    1200000
+
+#define OMAP4_VP_MPU_VLIMITTO_VDDMIN    830000
+#define OMAP4_VP_MPU_VLIMITTO_VDDMAX    1410000
+#define OMAP4_VP_IVA_VLIMITTO_VDDMIN    830000
+#define OMAP4_VP_IVA_VLIMITTO_VDDMAX    1260000
+#define OMAP4_VP_CORE_VLIMITTO_VDDMIN   830000
+#define OMAP4_VP_CORE_VLIMITTO_VDDMAX   1200000
+
 /**
  * struct omap_voltdm_pmic - PMIC specific data required by voltage driver.
  * @slew_rate:  PMIC slew rate (in uv/us)
@@ -107,26 +129,34 @@ struct voltagedomain {
 struct omap_voltdm_pmic {
         int slew_rate;
         int step_size;
-        u32 on_volt;
-        u32 onlp_volt;
-        u32 ret_volt;
-        u32 off_volt;
-        u16 volt_setup_time;
         u16 i2c_slave_addr;
         u16 volt_reg_addr;
         u16 cmd_reg_addr;
         u8 vp_erroroffset;
         u8 vp_vstepmin;
         u8 vp_vstepmax;
-        u8 vp_vddmin;
-        u8 vp_vddmax;
+        u32 vddmin;
+        u32 vddmax;
         u8 vp_timeout_us;
         bool i2c_high_speed;
+        u32 i2c_pad_load;
         u8 i2c_mcode;
         unsigned long (*vsel_to_uv) (const u8 vsel);
         u8 (*uv_to_vsel) (unsigned long uV);
 };
 
+struct omap_vp_param {
+        u32 vddmax;
+        u32 vddmin;
+};
+
+struct omap_vc_param {
+        u32 on;
+        u32 onlp;
+        u32 ret;
+        u32 off;
+};
+
 void omap_voltage_get_volttable(struct voltagedomain *voltdm,
                 struct omap_volt_data **volt_data);
 struct omap_volt_data *omap_voltage_get_voltdata(struct voltagedomain *voltdm,
diff --git a/arch/arm/mach-omap2/voltagedomains3xxx_data.c b/arch/arm/mach-omap2/voltagedomains3xxx_data.c
index 63afbfed3cbc..261bb7cb4e60 100644
--- a/arch/arm/mach-omap2/voltagedomains3xxx_data.c
+++ b/arch/arm/mach-omap2/voltagedomains3xxx_data.c
@@ -117,6 +117,11 @@ void __init omap3xxx_voltagedomains_init(void)
         }
 #endif
 
+        omap3_voltdm_mpu.vp_param = &omap3_mpu_vp_data;
+        omap3_voltdm_core.vp_param = &omap3_core_vp_data;
+        omap3_voltdm_mpu.vc_param = &omap3_mpu_vc_data;
+        omap3_voltdm_core.vc_param = &omap3_core_vc_data;
+
         if (soc_is_am35xx())
                 voltdms = voltagedomains_am35xx;
         else
diff --git a/arch/arm/mach-omap2/voltagedomains44xx_data.c b/arch/arm/mach-omap2/voltagedomains44xx_data.c
index c3115f6853d4..b893c8e6f88f 100644
--- a/arch/arm/mach-omap2/voltagedomains44xx_data.c
+++ b/arch/arm/mach-omap2/voltagedomains44xx_data.c
@@ -34,14 +34,17 @@
 
 static const struct omap_vfsm_instance omap4_vdd_mpu_vfsm = {
         .voltsetup_reg = OMAP4_PRM_VOLTSETUP_MPU_RET_SLEEP_OFFSET,
+        .voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_MPU_OFF_OFFSET,
 };
 
 static const struct omap_vfsm_instance omap4_vdd_iva_vfsm = {
         .voltsetup_reg = OMAP4_PRM_VOLTSETUP_IVA_RET_SLEEP_OFFSET,
+        .voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_IVA_OFF_OFFSET,
 };
 
 static const struct omap_vfsm_instance omap4_vdd_core_vfsm = {
         .voltsetup_reg = OMAP4_PRM_VOLTSETUP_CORE_RET_SLEEP_OFFSET,
+        .voltsetup_off_reg = OMAP4_PRM_VOLTSETUP_CORE_OFF_OFFSET,
 };
 
 static struct voltagedomain omap4_voltdm_mpu = {
@@ -101,11 +104,25 @@ void __init omap44xx_voltagedomains_init(void)
          * for the currently-running IC
          */
 #ifdef CONFIG_PM_OPP
-        omap4_voltdm_mpu.volt_data = omap44xx_vdd_mpu_volt_data;
-        omap4_voltdm_iva.volt_data = omap44xx_vdd_iva_volt_data;
-        omap4_voltdm_core.volt_data = omap44xx_vdd_core_volt_data;
+        if (cpu_is_omap443x()) {
+                omap4_voltdm_mpu.volt_data = omap443x_vdd_mpu_volt_data;
+                omap4_voltdm_iva.volt_data = omap443x_vdd_iva_volt_data;
+                omap4_voltdm_core.volt_data = omap443x_vdd_core_volt_data;
+        } else if (cpu_is_omap446x()) {
+                omap4_voltdm_mpu.volt_data = omap446x_vdd_mpu_volt_data;
+                omap4_voltdm_iva.volt_data = omap446x_vdd_iva_volt_data;
+                omap4_voltdm_core.volt_data = omap446x_vdd_core_volt_data;
+        }
 #endif
 
+        omap4_voltdm_mpu.vp_param = &omap4_mpu_vp_data;
+        omap4_voltdm_iva.vp_param = &omap4_iva_vp_data;
+        omap4_voltdm_core.vp_param = &omap4_core_vp_data;
+
+        omap4_voltdm_mpu.vc_param = &omap4_mpu_vc_data;
+        omap4_voltdm_iva.vc_param = &omap4_iva_vc_data;
+        omap4_voltdm_core.vc_param = &omap4_core_vc_data;
+
         for (i = 0; voltdm = voltagedomains_omap4[i], voltdm; i++)
                 voltdm->sys_clk.name = sys_clk_name;
 
diff --git a/arch/arm/mach-omap2/vp.c b/arch/arm/mach-omap2/vp.c
index 6e9fe8574315..a3c30655aa30 100644
--- a/arch/arm/mach-omap2/vp.c
+++ b/arch/arm/mach-omap2/vp.c
@@ -58,8 +58,10 @@ void __init omap_vp_init(struct voltagedomain *voltdm)
         sys_clk_rate = voltdm->sys_clk.rate / 1000;
 
         timeout = (sys_clk_rate * voltdm->pmic->vp_timeout_us) / 1000;
-        vddmin = voltdm->pmic->vp_vddmin;
-        vddmax = voltdm->pmic->vp_vddmax;
+        vddmin = max(voltdm->vp_param->vddmin, voltdm->pmic->vddmin);
+        vddmax = min(voltdm->vp_param->vddmax, voltdm->pmic->vddmax);
+        vddmin = voltdm->pmic->uv_to_vsel(vddmin);
+        vddmax = voltdm->pmic->uv_to_vsel(vddmax);
 
         waittime = DIV_ROUND_UP(voltdm->pmic->step_size * sys_clk_rate,
                                 1000 * voltdm->pmic->slew_rate);
diff --git a/arch/arm/mach-omap2/vp.h b/arch/arm/mach-omap2/vp.h
index 7c155d248aa3..0fdf7080e4a6 100644
--- a/arch/arm/mach-omap2/vp.h
+++ b/arch/arm/mach-omap2/vp.h
@@ -117,6 +117,13 @@ extern struct omap_vp_instance omap4_vp_mpu;
 extern struct omap_vp_instance omap4_vp_iva;
 extern struct omap_vp_instance omap4_vp_core;
 
+extern struct omap_vp_param omap3_mpu_vp_data;
+extern struct omap_vp_param omap3_core_vp_data;
+
+extern struct omap_vp_param omap4_mpu_vp_data;
+extern struct omap_vp_param omap4_iva_vp_data;
+extern struct omap_vp_param omap4_core_vp_data;
+
 void omap_vp_init(struct voltagedomain *voltdm);
 void omap_vp_enable(struct voltagedomain *voltdm);
 void omap_vp_disable(struct voltagedomain *voltdm);
diff --git a/arch/arm/mach-omap2/vp3xxx_data.c b/arch/arm/mach-omap2/vp3xxx_data.c
index bd89f80089f5..1914e026245e 100644
--- a/arch/arm/mach-omap2/vp3xxx_data.c
+++ b/arch/arm/mach-omap2/vp3xxx_data.c
@@ -77,3 +77,13 @@ struct omap_vp_instance omap3_vp_core = {
         .vstatus = OMAP3_PRM_VP2_STATUS_OFFSET,
         .voltage = OMAP3_PRM_VP2_VOLTAGE_OFFSET,
 };
+
+struct omap_vp_param omap3_mpu_vp_data = {
+        .vddmin                 = OMAP3430_VP1_VLIMITTO_VDDMIN,
+        .vddmax                 = OMAP3430_VP1_VLIMITTO_VDDMAX,
+};
+
+struct omap_vp_param omap3_core_vp_data = {
+        .vddmin                 = OMAP3430_VP2_VLIMITTO_VDDMIN,
+        .vddmax                 = OMAP3430_VP2_VLIMITTO_VDDMAX,
+};
diff --git a/arch/arm/mach-omap2/vp44xx_data.c b/arch/arm/mach-omap2/vp44xx_data.c
index 8c031d16879e..e62f6b018beb 100644
--- a/arch/arm/mach-omap2/vp44xx_data.c
+++ b/arch/arm/mach-omap2/vp44xx_data.c
@@ -87,3 +87,18 @@ struct omap_vp_instance omap4_vp_core = {
         .vstatus = OMAP4_PRM_VP_CORE_STATUS_OFFSET,
         .voltage = OMAP4_PRM_VP_CORE_VOLTAGE_OFFSET,
 };
+
+struct omap_vp_param omap4_mpu_vp_data = {
+        .vddmin                 = OMAP4_VP_MPU_VLIMITTO_VDDMIN,
+        .vddmax                 = OMAP4_VP_MPU_VLIMITTO_VDDMAX,
+};
+
+struct omap_vp_param omap4_iva_vp_data = {
+        .vddmin                 = OMAP4_VP_IVA_VLIMITTO_VDDMIN,
+        .vddmax                 = OMAP4_VP_IVA_VLIMITTO_VDDMAX,
+};
+
+struct omap_vp_param omap4_core_vp_data = {
+        .vddmin                 = OMAP4_VP_CORE_VLIMITTO_VDDMIN,
+        .vddmax                 = OMAP4_VP_CORE_VLIMITTO_VDDMAX,
+};