ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/uboot/drivers/power/mfd/pmic_max77693.c b/marvell/uboot/drivers/power/mfd/pmic_max77693.c
new file mode 100644
index 0000000..1a4416b
--- /dev/null
+++ b/marvell/uboot/drivers/power/mfd/pmic_max77693.c
@@ -0,0 +1,96 @@
+/*
+ * Copyright (C) 2013 Samsung Electronics
+ * Piotr Wilczek <p.wilczek@samsung.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <power/pmic.h>
+#include <power/max77693_pmic.h>
+#include <i2c.h>
+#include <errno.h>
+
+static int max77693_charger_state(struct pmic *p, int state, int current)
+{
+ unsigned int val;
+
+ if (pmic_probe(p))
+ return -1;
+
+ /* unlock write capability */
+ val = MAX77693_CHG_UNLOCK;
+ pmic_reg_write(p, MAX77693_CHG_CNFG_06, val);
+
+ if (state == CHARGER_DISABLE) {
+ puts("Disable the charger.\n");
+ pmic_reg_read(p, MAX77693_CHG_CNFG_00, &val);
+ val &= ~0x01;
+ pmic_reg_write(p, MAX77693_CHG_CNFG_00, val);
+ return -1;
+ }
+
+ if (current < CHARGER_MIN_CURRENT || current > CHARGER_MAX_CURRENT) {
+ printf("%s: Wrong charge current: %d [mA]\n",
+ __func__, current);
+ return -1;
+ }
+
+ /* set charging current */
+ pmic_reg_read(p, MAX77693_CHG_CNFG_02, &val);
+ val &= ~MAX77693_CHG_CC;
+ val |= current * 10 / 333; /* 0.1A/3 steps */
+ pmic_reg_write(p, MAX77693_CHG_CNFG_02, val);
+
+ /* enable charging */
+ val = MAX77693_CHG_MODE_ON;
+ pmic_reg_write(p, MAX77693_CHG_CNFG_00, val);
+
+ /* check charging current */
+ pmic_reg_read(p, MAX77693_CHG_CNFG_02, &val);
+ val &= 0x3f;
+ printf("Enable the charger @ %d [mA]\n", val * 333 / 10);
+
+ return 0;
+}
+
+static int max77693_charger_bat_present(struct pmic *p)
+{
+ unsigned int val;
+
+ if (pmic_probe(p))
+ return -1;
+
+ pmic_reg_read(p, MAX77693_CHG_INT_OK, &val);
+
+ return !(val & MAX77693_CHG_DETBAT);
+}
+
+static struct power_chrg power_chrg_pmic_ops = {
+ .chrg_bat_present = max77693_charger_bat_present,
+ .chrg_state = max77693_charger_state,
+};
+
+int pmic_init_max77693(unsigned char bus)
+{
+ static const char name[] = "MAX77693_PMIC";
+ struct pmic *p = pmic_alloc();
+
+ if (!p) {
+ printf("%s: POWER allocation error!\n", __func__);
+ return -ENOMEM;
+ }
+
+ debug("Board PMIC init\n");
+
+ p->name = name;
+ p->interface = PMIC_I2C;
+ p->number_of_regs = PMIC_NUM_OF_REGS;
+ p->hw.i2c.addr = MAX77693_PMIC_I2C_ADDR;
+ p->hw.i2c.tx_num = 1;
+ p->bus = bus;
+
+ p->chrg = &power_chrg_pmic_ops;
+
+ return 0;
+}