[U-Boot] [PATCH 2/4] mx53loco: Add mc34708 support and set mx53 frequency at 1GHz

[Fabio Estevam <festevam@gmail.com>]

From: Fabio Estevam <fabio.estevam@freescale.com>

Add mc34708 support and set mx53 core frequency at its maximum value of 1GHz.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
 board/freescale/mx53loco/mx53loco.c |   52 +++++++++++++++++++++++++---------
 include/configs/mx53loco.h          |    2 +
 include/fsl_pmic.h                  |   10 +++++++
 3 files changed, 50 insertions(+), 14 deletions(-)

diff --git a/board/freescale/mx53loco/mx53loco.c b/board/freescale/mx53loco/mx53loco.c
index 7ed5c4e..8c18b99 100644
--- a/board/freescale/mx53loco/mx53loco.c
+++ b/board/freescale/mx53loco/mx53loco.c
@@ -38,6 +38,7 @@
 #include <asm/gpio.h>
 #include <pmic.h>
 #include <dialog_pmic.h>
+#include <fsl_pmic.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -319,23 +320,46 @@ static void setup_iomux_i2c(void)
 
 static int power_init(void)
 {
-	unsigned int val, ret;
+	unsigned int val;
+	int ret = -1;
 	struct pmic *p;
 
-	pmic_dialog_init();
-	p = get_pmic();
-
-	/* Set VDDA to 1.25V */
-	val = DA9052_BUCKCORE_BCOREEN | DA_BUCKCORE_VBCORE_1_250V;
-	ret = pmic_reg_write(p, DA9053_BUCKCORE_REG, val);
-
-	ret |= pmic_reg_read(p, DA9053_SUPPLY_REG, &val);
-	val |= DA9052_SUPPLY_VBCOREGO;
-	ret |= pmic_reg_write(p, DA9053_SUPPLY_REG, val);
+	if (!i2c_probe(CONFIG_SYS_DIALOG_PMIC_I2C_ADDR)) {
+		pmic_dialog_init();
+		p = get_pmic();
+
+		/* Set VDDA to 1.25V */
+		val = DA9052_BUCKCORE_BCOREEN | DA_BUCKCORE_VBCORE_1_250V;
+		ret = pmic_reg_write(p, DA9053_BUCKCORE_REG, val);
+
+		ret |= pmic_reg_read(p, DA9053_SUPPLY_REG, &val);
+		val |= DA9052_SUPPLY_VBCOREGO;
+		ret |= pmic_reg_write(p, DA9053_SUPPLY_REG, val);
+
+		/* Set Vcc peripheral to 1.30V */
+		ret |= pmic_reg_write(p, DA9053_BUCKPRO_REG, 0x62);
+		ret |= pmic_reg_write(p, DA9053_SUPPLY_REG, 0x62);
+	}
 
-	/* Set Vcc peripheral to 1.35V */
-	ret |= pmic_reg_write(p, DA9053_BUCKPRO_REG, 0x62);
-	ret |= pmic_reg_write(p, DA9053_SUPPLY_REG, 0x62);
+	if (!i2c_probe(CONFIG_SYS_FSL_PMIC_I2C_ADDR)) {
+		pmic_init();
+		p = get_pmic();
+
+		/* Set VDDGP to 1.25V for 1GHz on SW1 */
+		pmic_reg_read(p, REG_SW_0, &val);
+		val = (val & ~SWx_VOLT_MASK_MC34708) | SWx_1_250V_MC34708;
+		ret = pmic_reg_write(p, REG_SW_0, val);
+
+		/* Set VCC as 1.30V on SW2 */
+		pmic_reg_read(p, REG_SW_1, &val);
+		val = (val & ~SWx_VOLT_MASK_MC34708) | SWx_1_300V_MC34708;
+		ret |= pmic_reg_write(p, REG_SW_1, val);
+
+		/* Set global reset timer to 4s */
+		pmic_reg_read(p, REG_POWER_CTL2, &val);
+		val = (val & ~TIMER_MASK_MC34708) | TIMER_4S_MC34708;
+		ret |= pmic_reg_write(p, REG_POWER_CTL2, val);
+	}
 
 	return ret;
 }
diff --git a/include/configs/mx53loco.h b/include/configs/mx53loco.h
index 8f43eec..87f6ed1 100644
--- a/include/configs/mx53loco.h
+++ b/include/configs/mx53loco.h
@@ -97,7 +97,9 @@
 #define CONFIG_PMIC
 #define CONFIG_PMIC_I2C
 #define CONFIG_DIALOG_PMIC
+#define CONFIG_PMIC_FSL
 #define CONFIG_SYS_DIALOG_PMIC_I2C_ADDR	0x48
+#define CONFIG_SYS_FSL_PMIC_I2C_ADDR	0x8
 
 /* allow to overwrite serial and ethaddr */
 #define CONFIG_ENV_OVERWRITE
diff --git a/include/fsl_pmic.h b/include/fsl_pmic.h
index 742f2e1..3b7cd37 100644
--- a/include/fsl_pmic.h
+++ b/include/fsl_pmic.h
@@ -122,4 +122,14 @@ enum {
 /* Interrupt status 1 */
 #define RTCRSTI		(1 << 7)
 
+/* MC34708 Definitions */
+#define SWx_VOLT_MASK_MC34708	0x3F
+#define SWx_1_250V_MC34708	0x30
+#define SWx_1_300V_MC34708	0x34
+#define TIMER_MASK_MC34708	0x300
+#define TIMER_4S_MC34708	0x100
+#define VUSBSEL_MC34708		(1 << 2)
+#define VUSBEN_MC34708		(1 << 3)
+#define SWBST_CTRL		31
+
 #endif
-- 
1.7.1