ARM: OMAP4+: Clean up the pmic code

The pmic code is duplicated for OMAP 4 and 5.
Instead move the data to Soc specific place and
share the code.

Signed-off-by: R Sricharan <r.sricharan@ti.com>
Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Tom Rini <trini@ti.com>

arch/arm/cpu/armv7/omap-common/clocks-common.c

@@ -443,44 +443,45 @@ static void setup_non_essential_dplls(void)
 }
 #endif
 
-void do_scale_tps62361(int gpio, u32 reg, u32 volt_mv)
+u32 get_offset_code(u32 volt_offset, struct pmic_data *pmic)
 {
-	u32 step;
-	int ret = 0;
-
-	/* See if we can first get the GPIO if needed */
-	if (gpio >= 0)
-		ret = gpio_request(gpio, "TPS62361_VSEL0_GPIO");
-	if (ret < 0) {
-		printf("%s: gpio %d request failed %d\n", __func__, gpio, ret);
-		gpio = -1;
-	}
-
-	/* Pull the GPIO low to select SET0 register, while we program SET1 */
-	if (gpio >= 0)
-		gpio_direction_output(gpio, 0);
+	u32 offset_code;
 
-	step = volt_mv - TPS62361_BASE_VOLT_MV;
-	step /= 10;
+	volt_offset -= pmic->base_offset;
 
-	debug("do_scale_tps62361: volt - %d step - 0x%x\n", volt_mv, step);
-	if (omap_vc_bypass_send_value(TPS62361_I2C_SLAVE_ADDR, reg, step))
-		puts("Scaling voltage failed for vdd_mpu from TPS\n");
+	offset_code = (volt_offset + pmic->step - 1) / pmic->step;
 
-	/* Pull the GPIO high to select SET1 register */
-	if (gpio >= 0)
-		gpio_direction_output(gpio, 1);
+	/*
+	 * Offset codes 1-6 all give the base voltage in Palmas
+	 * Offset code 0 switches OFF the SMPS
+	 */
+	return offset_code + pmic->start_code;
 }
 
-void do_scale_vcore(u32 vcore_reg, u32 volt_mv)
+void do_scale_vcore(u32 vcore_reg, u32 volt_mv, struct pmic_data *pmic)
 {
 	u32 offset_code;
 	u32 offset = volt_mv;
+	int ret = 0;
+
+	/* See if we can first get the GPIO if needed */
+	if (pmic->gpio_en)
+		ret = gpio_request(pmic->gpio, "PMIC_GPIO");
+
+	if (ret < 0) {
+		printf("%s: gpio %d request failed %d\n", __func__,
+							pmic->gpio, ret);
+		return;
+	}
+
+	/* Pull the GPIO low to select SET0 register, while we program SET1 */
+	if (pmic->gpio_en)
+		gpio_direction_output(pmic->gpio, 0);
 
 	/* convert to uV for better accuracy in the calculations */
 	offset *= 1000;
 
-	offset_code = get_offset_code(offset);
+	offset_code = get_offset_code(offset, pmic);
 
 	debug("do_scale_vcore: volt - %d offset_code - 0x%x\n", volt_mv,
 		offset_code);
@@ -488,6 +489,36 @@ void do_scale_vcore(u32 vcore_reg, u32 volt_mv)
 	if (omap_vc_bypass_send_value(SMPS_I2C_SLAVE_ADDR,
 				vcore_reg, offset_code))
 		printf("Scaling voltage failed for 0x%x\n", vcore_reg);
+
+	if (pmic->gpio_en)
+		gpio_direction_output(pmic->gpio, 1);
+}
+
+/*
+ * Setup the voltages for vdd_mpu, vdd_core, and vdd_iva
+ * We set the maximum voltages allowed here because Smart-Reflex is not
+ * enabled in bootloader. Voltage initialization in the kernel will set
+ * these to the nominal values after enabling Smart-Reflex
+ */
+void scale_vcores(struct vcores_data const *vcores)
+{
+	omap_vc_init(PRM_VC_I2C_CHANNEL_FREQ_KHZ);
+
+	do_scale_vcore(vcores->core.addr, vcores->core.value,
+					  vcores->core.pmic);
+
+	do_scale_vcore(vcores->mpu.addr, vcores->mpu.value,
+					  vcores->mpu.pmic);
+
+	do_scale_vcore(vcores->mm.addr, vcores->mm.value,
+					  vcores->mm.pmic);
+
+	 if (emif_sdram_type() == EMIF_SDRAM_TYPE_DDR3) {
+		/* Configure LDO SRAM "magic" bits */
+		writel(2, (*prcm)->prm_sldo_core_setup);
+		writel(2, (*prcm)->prm_sldo_mpu_setup);
+		writel(2, (*prcm)->prm_sldo_mm_setup);
+	}
 }
 
 static inline void enable_clock_domain(u32 const clkctrl_reg, u32 enable_mode)
@@ -656,7 +687,7 @@ void prcm_init(void)
 	case OMAP_INIT_CONTEXT_UBOOT_FROM_NOR:
 	case OMAP_INIT_CONTEXT_UBOOT_AFTER_CH:
 		enable_basic_clocks();
-		scale_vcores();
+		scale_vcores(*omap_vcores);
 		setup_dplls();
 #ifdef CONFIG_SYS_CLOCKS_ENABLE_ALL
 		setup_non_essential_dplls();

arch/arm/cpu/armv7/omap4/Makefile

@@ -27,7 +27,6 @@ LIB	=  $(obj)lib$(SOC).o
 
 COBJS	+= sdram_elpida.o
 COBJS	+= hwinit.o
-COBJS	+= clocks.o
 COBJS	+= emif.o
 COBJS	+= prcm-regs.o
 COBJS	+= hw_data.o

arch/arm/cpu/armv7/omap4/clocks.c

@@ -1,123 +0,0 @@
-/*
- *
- * Clock initialization for OMAP4
- *
- * (C) Copyright 2010
- * Texas Instruments, <www.ti.com>
- *
- * Aneesh V <aneesh@ti.com>
- *
- * Based on previous work by:
- *	Santosh Shilimkar <santosh.shilimkar@ti.com>
- *	Rajendra Nayak <rnayak@ti.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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
- */
-#include <common.h>
-#include <asm/omap_common.h>
-#include <asm/gpio.h>
-#include <asm/arch/clocks.h>
-#include <asm/arch/sys_proto.h>
-#include <asm/utils.h>
-#include <asm/omap_gpio.h>
-
-#ifndef CONFIG_SPL_BUILD
-/*
- * printing to console doesn't work unless
- * this code is executed from SPL
- */
-#define printf(fmt, args...)
-#define puts(s)
-#endif /* !CONFIG_SPL_BUILD */
-
-/*
- * Setup the voltages for vdd_mpu, vdd_core, and vdd_iva
- * We set the maximum voltages allowed here because Smart-Reflex is not
- * enabled in bootloader. Voltage initialization in the kernel will set
- * these to the nominal values after enabling Smart-Reflex
- */
-void scale_vcores(void)
-{
-	u32 volt, omap_rev;
-
-	omap_vc_init(PRM_VC_I2C_CHANNEL_FREQ_KHZ);
-
-	omap_rev = omap_revision();
-
-	/*
-	 * Scale Voltage rails:
-	 * 1. VDD_CORE
-	 * 3. VDD_MPU
-	 * 3. VDD_IVA
-	 */
-	if (omap_rev < OMAP4460_ES1_0) {
-		/*
-		 * OMAP4430:
-		 * VDD_CORE = TWL6030 VCORE3
-		 * VDD_MPU = TWL6030 VCORE1
-		 * VDD_IVA = TWL6030 VCORE2
-		 */
-		volt = 1200;
-		do_scale_vcore(SMPS_REG_ADDR_VCORE3, volt);
-
-		/*
-		 * note on VDD_MPU:
-		 * Setting a high voltage for Nitro mode as smart reflex is not
-		 * enabled. We use the maximum possible value in the AVS range
-		 * because the next higher voltage in the discrete range
-		 * (code >= 0b111010) is way too high.
-		 */
-		volt = 1325;
-		do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
-		volt = 1200;
-		do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt);
-
-	} else {
-		/*
-		 * OMAP4460:
-		 * VDD_CORE = TWL6030 VCORE1
-		 * VDD_MPU = TPS62361
-		 * VDD_IVA = TWL6030 VCORE2
-		 */
-		volt = 1200;
-		do_scale_vcore(SMPS_REG_ADDR_VCORE1, volt);
-		/* TPS62361 */
-		volt = 1203;
-		do_scale_tps62361(TPS62361_VSEL0_GPIO,
-				  TPS62361_REG_ADDR_SET1, volt);
-		/* VCORE 2 - supplies vdd_iva */
-		volt = 1200;
-		do_scale_vcore(SMPS_REG_ADDR_VCORE2, volt);
-	}
-}
-
-u32 get_offset_code(u32 offset)
-{
-	u32 offset_code, step = 12660; /* 12.66 mV represented in uV */
-
-	if (omap_revision() == OMAP4430_ES1_0)
-		offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_UV;
-	else
-		offset -= PHOENIX_SMPS_BASE_VOLT_STD_MODE_WITH_OFFSET_UV;
-
-	offset_code = (offset + step - 1) / step;
-
-	/* The code starts at 1 not 0 */
-	return ++offset_code;
-}

arch/arm/cpu/armv7/omap4/hw_data.c

@@ -30,12 +30,15 @@
 #include <asm/arch/sys_proto.h>
 #include <asm/omap_common.h>
 #include <asm/arch/clocks.h>
+#include <asm/omap_gpio.h>
 #include <asm/io.h>
 
 struct prcm_regs const **prcm =
 			(struct prcm_regs const **) OMAP_SRAM_SCRATCH_PRCM_PTR;
 struct dplls const **dplls_data =
 			(struct dplls const **) OMAP_SRAM_SCRATCH_DPLLS_PTR;
+struct vcores_data const **omap_vcores =
+		(struct vcores_data const **) OMAP_SRAM_SCRATCH_VCORES_PTR;
 
 /*
  * The M & N values in the following tables are created using the
@@ -194,6 +197,70 @@ struct dplls omap4460_dplls = {
 	.usb = usb_dpll_params_1920mhz
 };
 
+struct pmic_data twl6030_4430es1 = {
+	.base_offset = PHOENIX_SMPS_BASE_VOLT_STD_MODE_UV,
+	.step = 12660, /* 10 mV represented in uV */
+	/* The code starts at 1 not 0 */
+	.start_code = 1,
+};
+
+struct pmic_data twl6030 = {
+	.base_offset = PHOENIX_SMPS_BASE_VOLT_STD_MODE_WITH_OFFSET_UV,
+	.step = 12660, /* 10 mV represented in uV */
+	/* The code starts at 1 not 0 */
+	.start_code = 1,
+};
+
+struct pmic_data tps62361 = {
+	.base_offset = TPS62361_BASE_VOLT_MV,
+	.step = 10000, /* 10 mV represented in uV */
+	.start_code = 0,
+	.gpio = TPS62361_VSEL0_GPIO,
+	.gpio_en = 1
+};
+
+struct vcores_data omap4430_volts_es1 = {
+	.mpu.value = 1325,
+	.mpu.addr = SMPS_REG_ADDR_VCORE1,
+	.mpu.pmic = &twl6030_4430es1,
+
+	.core.value = 1200,
+	.core.addr = SMPS_REG_ADDR_VCORE3,
+	.core.pmic = &twl6030_4430es1,
+
+	.mm.value = 1200,
+	.mm.addr = SMPS_REG_ADDR_VCORE2,
+	.mm.pmic = &twl6030_4430es1,
+};
+
+struct vcores_data omap4430_volts = {
+	.mpu.value = 1325,
+	.mpu.addr = SMPS_REG_ADDR_VCORE1,
+	.mpu.pmic = &twl6030,
+
+	.core.value = 1200,
+	.core.addr = SMPS_REG_ADDR_VCORE3,
+	.core.pmic = &twl6030,
+
+	.mm.value = 1200,
+	.mm.addr = SMPS_REG_ADDR_VCORE2,
+	.mm.pmic = &twl6030,
+};
+
+struct vcores_data omap4460_volts = {
+	.mpu.value = 1203,
+	.mpu.addr = TPS62361_REG_ADDR_SET1,
+	.mpu.pmic = &tps62361,
+
+	.core.value = 1200,
+	.core.addr = SMPS_REG_ADDR_VCORE1,
+	.core.pmic = &tps62361,
+
+	.mm.value = 1200,
+	.mm.addr = SMPS_REG_ADDR_VCORE2,
+	.mm.pmic = &tps62361,
+};
+
 /*
  * Enable essential clock domains, modules and
  * do some additional special settings needed
@@ -382,6 +449,7 @@ void hw_data_init(void)
 
 	case OMAP4430_ES1_0:
 	*dplls_data = &omap4430_dplls_es1;
+	*omap_vcores = &omap4430_volts_es1;
 	break;
 
 	case OMAP4430_ES2_0:
@@ -389,11 +457,13 @@ void hw_data_init(void)
 	case OMAP4430_ES2_2:
 	case OMAP4430_ES2_3:
 	*dplls_data = &omap4430_dplls;
+	*omap_vcores = &omap4430_volts;
 	break;
 
 	case OMAP4460_ES1_0:
 	case OMAP4460_ES1_1:
 	*dplls_data = &omap4460_dplls;
+	*omap_vcores = &omap4460_volts;
 	break;
 
 	default:

arch/arm/cpu/armv7/omap5/Makefile

@@ -26,7 +26,6 @@ include $(TOPDIR)/config.mk
 LIB	=  $(obj)lib$(SOC).o
 
 COBJS	+= hwinit.o
-COBJS	+= clocks.o
 COBJS	+= emif.o
 COBJS	+= sdram.o
 COBJS	+= prcm-regs.o

arch/arm/cpu/armv7/omap5/clocks.c

@@ -1,98 +0,0 @@
-/*
- *
- * Clock initialization for OMAP5
- *
- * (C) Copyright 2010
- * Texas Instruments, <www.ti.com>
- *
- * Aneesh V <aneesh@ti.com>
- * Sricharan R <r.sricharan@ti.com>
- *
- * Based on previous work by:
- *	Santosh Shilimkar <santosh.shilimkar@ti.com>
- *	Rajendra Nayak <rnayak@ti.com>
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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
- */
-#include <common.h>
-#include <asm/omap_common.h>
-#include <asm/arch/clocks.h>
-#include <asm/arch/sys_proto.h>
-#include <asm/utils.h>
-#include <asm/omap_gpio.h>
-#include <asm/emif.h>
-
-#ifndef CONFIG_SPL_BUILD
-/*
- * printing to console doesn't work unless
- * this code is executed from SPL
- */
-#define printf(fmt, args...)
-#define puts(s)
-#endif
-
-/*
- * Setup the voltages for vdd_mpu, vdd_core, and vdd_iva
- * We set the maximum voltages allowed here because Smart-Reflex is not
- * enabled in bootloader. Voltage initialization in the kernel will set
- * these to the nominal values after enabling Smart-Reflex
- */
-void scale_vcores(void)
-{
-	u32 volt_core, volt_mpu, volt_mm;
-
-	omap_vc_init(PRM_VC_I2C_CHANNEL_FREQ_KHZ);
-
-	/* Palmas settings */
-	if (omap_revision() != OMAP5432_ES1_0) {
-		volt_core = VDD_CORE;
-		volt_mpu = VDD_MPU;
-		volt_mm = VDD_MM;
-	} else {
-		volt_core = VDD_CORE_5432;
-		volt_mpu = VDD_MPU_5432;
-		volt_mm = VDD_MM_5432;
-	}
-
-	do_scale_vcore(SMPS_REG_ADDR_8_CORE, volt_core);
-	do_scale_vcore(SMPS_REG_ADDR_12_MPU, volt_mpu);
-	do_scale_vcore(SMPS_REG_ADDR_45_IVA, volt_mm);
-
-	if (emif_sdram_type() == EMIF_SDRAM_TYPE_DDR3) {
-		/* Configure LDO SRAM "magic" bits */
-		writel(2, (*prcm)->prm_sldo_core_setup);
-		writel(2, (*prcm)->prm_sldo_mpu_setup);
-		writel(2, (*prcm)->prm_sldo_mm_setup);
-	}
-}
-
-u32 get_offset_code(u32 volt_offset)
-{
-	u32 offset_code, step = 10000; /* 10 mV represented in uV */
-
-	volt_offset -= PALMAS_SMPS_BASE_VOLT_UV;
-
-	offset_code = (volt_offset + step - 1) / step;
-
-	/*
-	 * Offset codes 1-6 all give the base voltage in Palmas
-	 * Offset code 0 switches OFF the SMPS
-	 */
-	return offset_code + 6;
-}

arch/arm/cpu/armv7/omap5/hw_data.c

@@ -30,12 +30,15 @@
 #include <asm/arch/sys_proto.h>
 #include <asm/omap_common.h>
 #include <asm/arch/clocks.h>
+#include <asm/omap_gpio.h>
 #include <asm/io.h>
 
 struct prcm_regs const **prcm =
 			(struct prcm_regs const **) OMAP_SRAM_SCRATCH_PRCM_PTR;
 struct dplls const **dplls_data =
 			(struct dplls const **) OMAP_SRAM_SCRATCH_DPLLS_PTR;
+struct vcores_data const **omap_vcores =
+		(struct vcores_data const **) OMAP_SRAM_SCRATCH_VCORES_PTR;
 
 static const struct dpll_params mpu_dpll_params_1_5ghz[NUM_SYS_CLKS] = {
 	{125, 0, 1, -1, -1, -1, -1, -1, -1, -1},	/* 12 MHz   */
@@ -179,6 +182,44 @@ struct dplls omap5_dplls_es1 = {
 	.usb = usb_dpll_params_1920mhz
 };
 
+struct pmic_data palmas = {
+	.base_offset = PALMAS_SMPS_BASE_VOLT_UV,
+	.step = 10000, /* 10 mV represented in uV */
+	/*
+	 * Offset codes 1-6 all give the base voltage in Palmas
+	 * Offset code 0 switches OFF the SMPS
+	 */
+	.start_code = 6,
+};
+
+struct vcores_data omap5430_volts = {
+	.mpu.value = VDD_MPU,
+	.mpu.addr = SMPS_REG_ADDR_12_MPU,
+	.mpu.pmic = &palmas,
+
+	.core.value = VDD_CORE,
+	.core.addr = SMPS_REG_ADDR_8_CORE,
+	.core.pmic = &palmas,
+
+	.mm.value = VDD_MM,
+	.mm.addr = SMPS_REG_ADDR_45_IVA,
+	.mm.pmic = &palmas,
+};
+
+struct vcores_data omap5432_volts = {
+	.mpu.value = VDD_MPU_5432,
+	.mpu.addr = SMPS_REG_ADDR_12_MPU,
+	.mpu.pmic = &palmas,
+
+	.core.value = VDD_CORE_5432,
+	.core.addr = SMPS_REG_ADDR_8_CORE,
+	.core.pmic = &palmas,
+
+	.mm.value = VDD_MM_5432,
+	.mm.addr = SMPS_REG_ADDR_45_IVA,
+	.mm.pmic = &palmas,
+};
+
 /*
  * Enable essential clock domains, modules and
  * do some additional special settings needed
@@ -380,11 +421,13 @@ void hw_data_init(void)
 	case OMAP5430_ES1_0:
 	*prcm = &omap5_es1_prcm;
 	*dplls_data = &omap5_dplls_es1;
+	*omap_vcores = &omap5430_volts;
 	break;
 
 	case OMAP5432_ES1_0:
 	*prcm = &omap5_es1_prcm;
 	*dplls_data = &omap5_dplls_es1;
+	*omap_vcores = &omap5432_volts;
 	break;
 
 	default:

arch/arm/include/asm/arch-omap4/clocks.h

@@ -242,11 +242,6 @@
 #define DPLL_NO_LOCK	0
 #define DPLL_LOCK	1
 
-void scale_vcores(void);
-void do_scale_tps62361(int gpio, u32 reg, u32 volt_mv);
-u32 get_offset_code(u32 offset);
-void do_scale_vcore(u32 vcore_reg, u32 volt_mv);
-
 struct omap4_scrm_regs {
 	u32 revision;           /* 0x0000 */
 	u32 pad00[63];

arch/arm/include/asm/arch-omap4/omap.h

@@ -180,7 +180,8 @@ struct control_lpddr2io_regs {
 #define OMAP4_SRAM_SCRATCH_EMIF_T_DEN	(SRAM_SCRATCH_SPACE_ADDR + 0x10)
 #define OMAP_SRAM_SCRATCH_PRCM_PTR      (SRAM_SCRATCH_SPACE_ADDR + 0x14)
 #define OMAP_SRAM_SCRATCH_DPLLS_PTR     (SRAM_SCRATCH_SPACE_ADDR + 0x18)
-#define OMAP4_SRAM_SCRATCH_SPACE_END	(SRAM_SCRATCH_SPACE_ADDR + 0x1C)
+#define OMAP_SRAM_SCRATCH_VCORES_PTR	(SRAM_SCRATCH_SPACE_ADDR + 0x1C)
+#define OMAP4_SRAM_SCRATCH_SPACE_END	(SRAM_SCRATCH_SPACE_ADDR + 0x20)
 
 /* ROM code defines */
 /* Boot device */

arch/arm/include/asm/arch-omap5/clocks.h

@@ -234,8 +234,4 @@
 #define DPLL_NO_LOCK	0
 #define DPLL_LOCK	1
 
-void scale_vcores(void);
-void do_scale_tps62361(int gpio, u32 reg, u32 volt_mv);
-u32 get_offset_code(u32 offset);
-void do_scale_vcore(u32 vcore_reg, u32 volt_mv);
 #endif /* _CLOCKS_OMAP5_H_ */

arch/arm/include/asm/arch-omap5/omap.h

@@ -273,7 +273,8 @@ struct omap_sys_ctrl_regs {
 #define OMAP5_SRAM_SCRATCH_EMIF_T_DEN	(SRAM_SCRATCH_SPACE_ADDR + 0x10)
 #define OMAP_SRAM_SCRATCH_PRCM_PTR      (SRAM_SCRATCH_SPACE_ADDR + 0x14)
 #define OMAP_SRAM_SCRATCH_DPLLS_PTR     (SRAM_SCRATCH_SPACE_ADDR + 0x18)
-#define OMAP5_SRAM_SCRATCH_SPACE_END	(SRAM_SCRATCH_SPACE_ADDR + 0x1C)
+#define OMAP_SRAM_SCRATCH_VCORES_PTR    (SRAM_SCRATCH_SPACE_ADDR + 0x1C)
+#define OMAP5_SRAM_SCRATCH_SPACE_END	(SRAM_SCRATCH_SPACE_ADDR + 0x20)
 
 /* Silicon revisions */
 #define OMAP4430_SILICON_ID_INVALID	0xFFFFFFFF

arch/arm/include/asm/omap_common.h

@@ -364,10 +364,31 @@ struct dplls {
 	const struct dpll_params *usb;
 };
 
+struct pmic_data {
+	u32 base_offset;
+	u32 step;
+	u32 start_code;
+	unsigned gpio;
+	int gpio_en;
+};
+
+struct volts {
+	u32 value;
+	u32 addr;
+	struct pmic_data *pmic;
+};
+
+struct vcores_data {
+	struct volts mpu;
+	struct volts core;
+	struct volts mm;
+};
+
 extern struct prcm_regs const **prcm;
 extern struct prcm_regs const omap5_es1_prcm;
 extern struct prcm_regs const omap4_prcm;
 extern struct dplls const **dplls_data;
+extern struct vcores_data const **omap_vcores;
 extern const u32 sys_clk_array[8];
 
 void hw_data_init(void);
@@ -391,6 +412,9 @@ u32 get_sys_clk_index(void);
 void enable_basic_clocks(void);
 void enable_basic_uboot_clocks(void);
 void enable_non_essential_clocks(void);
+void scale_vcores(struct vcores_data const *);
+u32 get_offset_code(u32 volt_offset, struct pmic_data *pmic);
+void do_scale_vcore(u32 vcore_reg, u32 volt_mv, struct pmic_data *pmic);
 
 /* Max value for DPLL multiplier M */
 #define OMAP_DPLL_MAX_N	127

include/configs/omap5_evm.h

@@ -265,5 +265,6 @@
 #define CONFIG_SPL_BSS_MAX_SIZE		0x100000	/* 1 MB */
 #define CONFIG_SYS_SPL_MALLOC_START	0x84100000
 #define CONFIG_SYS_SPL_MALLOC_SIZE	0x100000	/* 1 MB */
+#define CONFIG_SPL_GPIO_SUPPORT
 
 #endif /* __CONFIG_H */