Backports DA9063 driver from TI branch

In order to check reset-reason

BugzID: 71440

board/netmodule/nm-common/da9063.c

@@ -0,0 +1,140 @@
+/*
+ * da9063.c
+ *
+ * Dialog DA9063 PMIC
+ *
+ * Copyright (C) 2018-2019 NetModule AG - http://www.netmodule.com/
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <errno.h>
+#include <i2c.h>
+
+#include "da9063.h"
+
+
+static int da9063_i2c_bus = 0;
+static int bus_claimed = 0;
+
+
+static int switch_i2c_bus(void)
+{
+	int old_bus;
+
+	old_bus = i2c_get_bus_num();
+	if (old_bus != da9063_i2c_bus) {
+		i2c_set_bus_num(da9063_i2c_bus);
+	}
+
+	bus_claimed++;
+
+	return old_bus;
+}
+
+static void revert_i2c_bus(int bus)
+{
+	if (da9063_i2c_bus != bus) {
+		i2c_set_bus_num(bus);
+	}
+
+	bus_claimed--;
+}
+
+
+void da9063_init(int i2c_bus)
+{
+	da9063_i2c_bus = i2c_bus;
+}
+
+int da9063_claim_i2c_bus(void)
+{
+	return switch_i2c_bus();
+}
+
+void da9063_release_i2c_bus(int bus)
+{
+	revert_i2c_bus(bus);
+}
+
+int da9063_get_reg(uint32_t reg, uint8_t* val)
+{
+	int ret;
+	uint8_t temp;
+
+	/* Argument check */
+	if ((reg >= 0x200) || (val==0)) {
+		return -1;
+	}
+
+	/* State check. Has bus been claimed */
+	if (bus_claimed == 0) {
+		return -2;
+	}
+
+	*val = 0;
+	if (reg < 0x100) {
+		ret = i2c_read(CONFIG_PMIC_I2C_ADDR+0, reg & 0xFF, 1, &temp, 1);
+	} else {
+		ret = i2c_read(CONFIG_PMIC_I2C_ADDR+1, reg & 0xFF, 1, &temp, 1);
+	}
+
+	if (ret == 0)
+		*val = temp;
+
+	return ret;
+}
+
+int da9063_set_reg(uint32_t reg, uint8_t val)
+{
+	int ret;
+
+	/* Argument check */
+	if (reg >= 0x200) {
+		return -1;
+	}
+
+	/* State check. Has bus been claimed */
+	if (bus_claimed == 0) {
+		return -2;
+	}
+
+	if (reg < 0x100) {
+		ret = i2c_write(CONFIG_PMIC_I2C_ADDR+0, reg & 0xFF, 1, &val, 1);
+	} else {
+		ret = i2c_write(CONFIG_PMIC_I2C_ADDR+1, reg & 0xFF, 1, &val, 1);
+	}
+
+	if (ret != 0)
+		puts("da9063 write error\n");
+
+	return ret;
+}
+
+void da9063_set_gpio(unsigned bit, int state)
+{
+	int pmic_reg;
+	int ret;
+	uint8_t bitmask;
+	uint8_t reg = 0x00;
+
+	if (bit <= 7) {
+		pmic_reg = PMIC_REG_GPIO_MODE0_7;
+		bitmask = 1U << (bit-0);
+	}
+	else  {
+		pmic_reg = PMIC_REG_GPIO_MODE8_15;
+		bitmask = 1U << (bit-8);
+	}
+
+	ret = da9063_get_reg(pmic_reg, &reg);
+
+	if (ret == 0)  {
+		if (state)	reg |=  bitmask;
+		else		reg &= ~bitmask;
+
+		(void)da9063_set_reg(pmic_reg, reg);
+	}
+}
+

board/netmodule/nm-common/da9063.h

@@ -0,0 +1,103 @@
+/*
+ * da9063.c
+ *
+ * Dialog DA9063 PMIC
+ *
+ * Copyright (C) 2018-2019 NetModule AG - http://www.netmodule.com/
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef DA9063_H
+#define DA9063_H
+
+
+#define CONFIG_PMIC_I2C_BUS	0
+#define CONFIG_PMIC_I2C_ADDR	0x58	/* Pages 0 and 1, Pages 2 and 3 -> 0x59 */
+
+#define PMIC_REG_STATUS_A		0x01	/* Status of ON_KEY, WAKE, COMP1V2, DVC */
+#define PMIC_REG_STATUS_A_COMP1V2_MASK	0x08
+
+#define PMIC_REG_FAULT_LOG		0x05	/* PMIC fault log register, holding reset reason */
+#define PMIC_FAULT_TWD_ERROR_MASK	0x01	/* Watchdog timeout detected */
+#define PMIC_FAULT_POR_MASK		0x02	/* Startup from No-Power/RTC/Delivery mode */
+
+#define PMIC_REG_EVENT_A		0x06
+#define PMIC_REG_EVENT_ONKEY_MASK	0x01
+#define PMIC_REG_EVENT_RTC_ALARM_MASK	0x02
+#define PMIC_REG_EVENT_RTC_TICK_MASK	0x04
+#define PMIC_REG_EVENT_EVENTS_B_MASK	0x20
+
+#define PMIC_REG_EVENT_B		0x07
+#define PMIC_REG_EVENT_COMP1V2_MASK	0x04
+
+#define PMIC_REG_IRQ_MASK_A	0x0A
+#define PMIC_REG_IRQ_MASK_B	0x0B
+#define PMIC_REG_IRQ_MASK_C	0x0C
+#define PMIC_REG_IRQ_MASK_D	0x0D
+
+#define PMIC_REG_CONTROL_A      0x0E    /* Control register for power states */
+#define PMIC_REG_CONTROL_D	0x11    /* Control register for blink/watchdog */
+#define PMIC_REG_GPIO14_15	0x1C    /* Configuration of GPIO14/15 (mode, wake) */
+#define PMIC_REG_GPIO_MODE0_7	0x1D	/* Control register for GPIOs 0..7 */
+#define PMIC_REG_GPIO_MODE8_15	0x1E	/* Control register for GPIOs 8..15 */
+
+#define PMIC_REG_BCORE1_CONT	0x21	/* Control register of BCORE1 */
+#define PMIC_REG_BCORE2_CONT	0x20	/* Control register of BCORE2 */
+#define PMIC_REG_BPERI_CONT	0x25	/* Control register of BPERI */
+#define PMIC_REG_BIO_CONT	0x24	/* Control register of BIO */
+#define PMIC_REG_BMEM_CONT	0x23	/* Control register of BMEM */
+
+#define PMIC_REG_LDO3_CONT	0x28	/* Control register of LDO3 */
+#define PMIC_REG_LDO6_CONT	0x2B	/* Control register of LDO6 */
+#define PMIC_REG_LDO7_CONT	0x2C	/* Control register of LDO7 */
+#define PMIC_REG_LDO11_CONT	0x30	/* Control register of LDO11 */
+
+#define PMIC_LDOx_EN_MASK	0x01
+#define PMIC_LDOx_CONF_MASK	0x80
+
+#define PMIC_REG_ID_4_3		0x84
+
+#define PMIC_REG_BUCK_ILIM_A	0x9A
+#define PMIC_REG_BUCK_ILIM_B	0x9B
+#define PMIC_REG_BUCK_ILIM_C	0x9C
+
+#define PMIC_REG_BCORE1_CONF	0x9E	/* Configuration register of BCORE1 */
+#define PMIC_REG_BCORE2_CONF	0x9D	/* Configuration register of BCORE2 */
+#define PMIC_REG_BPERI_CONF	0xA2	/* Configuration register of BPERI */
+#define PMIC_REG_BIO_CONF	0xA0	/* Configuration register of BIO */
+#define PMIC_REG_BMEM_CONF	0xA1	/* Configuration register of BMEM */
+
+#define PMIC_CONF_MODE_MASK	0xC0
+#define PMIC_CONF_MODE_SLEEP	0x40
+#define PMIC_CONF_MODE_SYNC	0x80
+#define PMIC_CONF_MODE_AUTO	0xC0
+
+
+#define PMIC_REG_BBAT_CONT	0xC5	/* Control register for backup battery */
+
+#define PMIC_REG_CONFIG_E	0x10A
+#define PMIC_REG_CONFIG_G	0x10C
+#define PMIC_REG_CONFIG_L	0x111
+
+#define PMIC_REG_TRIM_CLDR	0x120	/* Calendar Trim register, 2's complement, 1.9ppm per bit */
+
+#define PMIC_GP_ID_0		0x121	/* General purpose ID 0 (R/W) */
+#define PMIC_GP_ID_1		0x122	/* General purpose ID 1 (R/W) */
+
+#define PMIC_REG_CONFIG_ID	0x184	/* OTP Config ID <ver.rev> */
+
+
+extern void da9063_init(int i2c_bus);
+
+extern int da9063_claim_i2c_bus(void);
+extern void da9063_release_i2c_bus(int bus);
+
+extern int da9063_get_reg(uint32_t reg, uint8_t* val);
+extern int da9063_set_reg(uint32_t reg, uint8_t val);
+
+extern void da9063_set_gpio(unsigned bit, int state);
+
+
+#endif /* DA9063_H */
+