[U-Boot] [PATCH 1/5] pmic: pmic_mc34vr500: Add a driver for the mc34vr500 pmic
Zhiqiang Hou
Zhiqiang.Hou at nxp.com
Fri Dec 9 09:08:57 CET 2016
From: Hou Zhiqiang <Zhiqiang.Hou at nxp.com>
This patch adds a simple pmic driver for the mc34vr500 pmic which
is used in conjunction with the fsl T1 and LS1 series SoC.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou at nxp.com>
---
drivers/power/pmic/Kconfig | 7 ++
drivers/power/pmic/Makefile | 1 +
drivers/power/pmic/pmic_mc34vr500.c | 32 +++++++
include/power/mc34vr500_pmic.h | 166 ++++++++++++++++++++++++++++++++++++
4 files changed, 206 insertions(+)
create mode 100644 drivers/power/pmic/pmic_mc34vr500.c
create mode 100644 include/power/mc34vr500_pmic.h
diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
index ce204b3..73e1d53 100644
--- a/drivers/power/pmic/Kconfig
+++ b/drivers/power/pmic/Kconfig
@@ -157,3 +157,10 @@ config PMIC_LP873X
---help---
The LP873X is a PMIC containing couple of LDOs and couple of SMPS.
This driver binds the pmic children.
+
+config POWER_MC34VR500
+ bool "Enable driver for Freescale MC34VR500 PMIC"
+ ---help---
+ The MC34VR500 is used in conjunction with the FSL T1 and LS1 series
+ SoC. It provides 4 buck DC-DC convertors and 5 LDOs, and it is accessed
+ via an I2C interface.
diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile
index cd1c694..58d0241 100644
--- a/drivers/power/pmic/Makefile
+++ b/drivers/power/pmic/Makefile
@@ -32,3 +32,4 @@ obj-$(CONFIG_POWER_TPS65218) += pmic_tps62362.o
obj-$(CONFIG_POWER_TPS65218) += pmic_tps65218.o
obj-$(CONFIG_POWER_TPS65910) += pmic_tps65910.o
obj-$(CONFIG_POWER_HI6553) += pmic_hi6553.o
+obj-$(CONFIG_POWER_MC34VR500) += pmic_mc34vr500.o
diff --git a/drivers/power/pmic/pmic_mc34vr500.c b/drivers/power/pmic/pmic_mc34vr500.c
new file mode 100644
index 0000000..db9e210
--- /dev/null
+++ b/drivers/power/pmic/pmic_mc34vr500.c
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * Hou Zhiqiang <Zhiqiang.Hou at freescale.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <i2c.h>
+#include <power/pmic.h>
+#include <power/mc34vr500_pmic.h>
+
+int power_mc34vr500_init(unsigned char bus)
+{
+ static const char name[] = "MC34VR500";
+ struct pmic *p = pmic_alloc();
+
+ if (!p) {
+ printf("%s: POWER allocation error!\n", __func__);
+ return -ENOMEM;
+ }
+
+ p->name = name;
+ p->interface = PMIC_I2C;
+ p->number_of_regs = MC34VR500_NUM_OF_REGS;
+ p->hw.i2c.addr = MC34VR500_I2C_ADDR;
+ p->hw.i2c.tx_num = 1;
+ p->bus = bus;
+
+ return 0;
+}
diff --git a/include/power/mc34vr500_pmic.h b/include/power/mc34vr500_pmic.h
new file mode 100644
index 0000000..df4985a
--- /dev/null
+++ b/include/power/mc34vr500_pmic.h
@@ -0,0 +1,166 @@
+/*
+ * Copyright 2016 Freescale Semiconductor, Inc.
+ * Hou Zhiqiang <Zhiqiang.Hou at freescale.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef __MC34VR500_H_
+#define __MC34VR500_H_
+
+#include <power/pmic.h>
+
+#define MC34VR500_I2C_ADDR 0x08
+
+/* Drivers name */
+#define MC34VR500_REGULATOR_DRIVER "mc34vr500_regulator"
+
+/* Register map */
+enum {
+ MC34VR500_DEVICEID = 0x00,
+
+ MC34VR500_SILICONREVID = 0x03,
+ MC34VR500_FABID,
+ MC34VR500_INTSTAT0,
+ MC34VR500_INTMASK0,
+ MC34VR500_INTSENSE0,
+ MC34VR500_INTSTAT1,
+ MC34VR500_INTMASK1,
+ MC34VR500_INTSENSE1,
+
+ MC34VR500_INTSTAT4 = 0x11,
+ MC34VR500_INTMASK4,
+ MC34VR500_INTSENSE4,
+
+ MC34VR500_PWRCTL = 0x1B,
+
+ MC34VR500_SW1VOLT = 0x2E,
+ MC34VR500_SW1STBY,
+ MC34VR500_SW1OFF,
+ MC34VR500_SW1MODE,
+ MC34VR500_SW1CONF,
+ MC34VR500_SW2VOLT,
+ MC34VR500_SW2STBY,
+ MC34VR500_SW2OFF,
+ MC34VR500_SW2MODE,
+ MC34VR500_SW2CONF,
+
+ MC34VR500_SW3VOLT = 0x3C,
+ MC34VR500_SW3STBY,
+ MC34VR500_SW3OFF,
+ MC34VR500_SW3MODE,
+ MC34VR500_SW3CONF,
+
+ MC34VR500_SW4VOLT = 0x4A,
+ MC34VR500_SW4STBY,
+ MC34VR500_SW4OFF,
+ MC34VR500_SW4MODE,
+ MC34VR500_SW4CONF,
+
+ MC34VR500_REFOUTCRTRL = 0x6A,
+
+ MC34VR500_LDO1CTL = 0x6D,
+ MC34VR500_LDO2CTL,
+ MC34VR500_LDO3CTL,
+ MC34VR500_LDO4CTL,
+ MC34VR500_LDO5CTL,
+
+ MC34VR500_PAGE_REGISTER = 0x7F,
+
+ /* Internal RAM */
+ MC34VR500_SW1_VOLT = 0xA8,
+ MC34VR500_SW1_SEQ,
+ MC34VR500_SW1_CONFIG,
+
+ MC34VR500_SW2_VOLT = 0xAC,
+ MC34VR500_SW2_SEQ,
+ MC34VR500_SW2_CONFIG,
+
+ MC34VR500_SW3_VOLT = 0xB0,
+ MC34VR500_SW3_SEQ,
+ MC34VR500_SW3_CONFIG,
+
+ MC34VR500_SW4_VOLT = 0xB8,
+ MC34VR500_SW4_SEQ,
+ MC34VR500_SW4_CONFIG,
+
+ MC34VR500_REFOUT_SEQ = 0xC4,
+
+ MC34VR500_LDO1_VOLT = 0xCC,
+ MC34VR500_LDO1_SEQ,
+
+ MC34VR500_LDO2_VOLT = 0xD0,
+ MC34VR500_LDO2_SEQ,
+
+ MC34VR500_LDO3_VOLT = 0xD4,
+ MC34VR500_LDO3_SEQ,
+
+ MC34VR500_LDO4_VOLT = 0xD8,
+ MC34VR500_LDO4_SEQ,
+
+ MC34VR500_LDO5_VOLT = 0xDC,
+ MC34VR500_LDO5_SEQ,
+
+ MC34VR500_PU_CONFIG1 = 0xE0,
+
+ MC34VR500_TBB_POR = 0xE4,
+
+ MC34VR500_PWRGD_EN = 0xE8,
+
+ MC34VR500_NUM_OF_REGS,
+};
+
+/* Registor offset based on SWxVOLT register */
+#define MC34VR500_VOLT_OFFSET 0
+#define MC34VR500_STBY_OFFSET 1
+#define MC34VR500_OFF_OFFSET 2
+#define MC34VR500_MODE_OFFSET 3
+#define MC34VR500_CONF_OFFSET 4
+
+#define SW_MODE_MASK 0xf
+#define SW_MODE_SHIFT 0
+
+#define LDO_VOL_MASK 0xf
+#define LDO_EN (1 << 4)
+#define LDO_MODE_SHIFT 4
+#define LDO_MODE_MASK (1 << 4)
+#define LDO_MODE_OFF 0
+#define LDO_MODE_ON 1
+
+#define REFOUTEN (1 << 4)
+
+/*
+ * Regulator Mode Control
+ *
+ * OFF: The regulator is switched off and the output voltage is discharged.
+ * PFM: In this mode, the regulator is always in PFM mode, which is useful
+ * at light loads for optimized efficiency.
+ * PWM: In this mode, the regulator is always in PWM mode operation
+ * regardless of load conditions.
+ * APS: In this mode, the regulator moves automatically between pulse
+ * skipping mode and PWM mode depending on load conditions.
+ *
+ * SWxMODE[3:0]
+ * Normal Mode | Standby Mode | value
+ * OFF OFF 0x0
+ * PWM OFF 0x1
+ * PFM OFF 0x3
+ * APS OFF 0x4
+ * PWM PWM 0x5
+ * PWM APS 0x6
+ * APS APS 0x8
+ * APS PFM 0xc
+ * PWM PFM 0xd
+ */
+#define OFF_OFF 0x0
+#define PWM_OFF 0x1
+#define PFM_OFF 0x3
+#define APS_OFF 0x4
+#define PWM_PWM 0x5
+#define PWM_APS 0x6
+#define APS_APS 0x8
+#define APS_PFM 0xc
+#define PWM_PFM 0xd
+
+int power_mc34vr500_init(unsigned char bus);
+#endif /* __MC34VR500_PMIC_H_ */
--
2.1.0.27.g96db324
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