From f8e450a7f61a04967d3fa74817b3abc9ec95aecd Mon Sep 17 00:00:00 2001
From: Peng Fan <peng.fan@nxp.com>
Date: Tue, 2 Jan 2018 09:32:06 +0800
Subject: [PATCH] board: freescale: common: add pfuze dm code

Add pfuze dm code, this code could be enabled with CONFIG_DM_PMIC_PFUZE100.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
---
 board/freescale/common/Makefile |  1 +
 board/freescale/common/pfuze.c  | 79 +++++++++++++++++++++++++++++++++++++++++
 board/freescale/common/pfuze.h  |  5 +++
 3 files changed, 85 insertions(+)

diff --git a/board/freescale/common/Makefile b/board/freescale/common/Makefile
index 1c53fb6..e13cb20 100644
--- a/board/freescale/common/Makefile
+++ b/board/freescale/common/Makefile
@@ -61,6 +61,7 @@ obj-$(CONFIG_VSC_CROSSBAR)    += vsc3316_3308.o
 obj-$(CONFIG_IDT8T49N222A)	+= idt8t49n222a_serdes_clk.o
 obj-$(CONFIG_ZM7300)		+= zm7300.o
 obj-$(CONFIG_POWER_PFUZE100)	+= pfuze.o
+obj-$(CONFIG_DM_PMIC_PFUZE100)	+= pfuze.o
 obj-$(CONFIG_POWER_MC34VR500)	+= mc34vr500.o
 
 obj-$(CONFIG_LS102XA_STREAM_ID)	+= ls102xa_stream_id.o
diff --git a/board/freescale/common/pfuze.c b/board/freescale/common/pfuze.c
index 69afa83..f194d0b 100644
--- a/board/freescale/common/pfuze.c
+++ b/board/freescale/common/pfuze.c
@@ -92,4 +92,83 @@ struct pmic *pfuze_common_init(unsigned char i2cbus)
 
 	return p;
 }
+#else
+int pfuze_mode_init(struct udevice *dev, u32 mode)
+{
+	unsigned char offset, i, switch_num;
+	u32 id;
+	int ret;
+
+	id = pmic_reg_read(dev, PFUZE100_DEVICEID);
+	id = id & 0xf;
+
+	if (id == 0) {
+		switch_num = 6;
+		offset = PFUZE100_SW1CMODE;
+	} else if (id == 1) {
+		switch_num = 4;
+		offset = PFUZE100_SW2MODE;
+	} else {
+		printf("Not supported, id=%d\n", id);
+		return -EINVAL;
+	}
+
+	ret = pmic_reg_write(dev, PFUZE100_SW1ABMODE, mode);
+	if (ret < 0) {
+		printf("Set SW1AB mode error!\n");
+		return ret;
+	}
+
+	for (i = 0; i < switch_num - 1; i++) {
+		ret = pmic_reg_write(dev, offset + i * SWITCH_SIZE, mode);
+		if (ret < 0) {
+			printf("Set switch 0x%x mode error!\n",
+			       offset + i * SWITCH_SIZE);
+			return ret;
+		}
+	}
+
+	return ret;
+}
+
+struct udevice *pfuze_common_init(void)
+{
+	struct udevice *dev;
+	int ret;
+	unsigned int reg, dev_id, rev_id;
+
+	ret = pmic_get("pfuze100", &dev);
+	if (ret == -ENODEV)
+		return NULL;
+
+	dev_id = pmic_reg_read(dev, PFUZE100_DEVICEID);
+	rev_id = pmic_reg_read(dev, PFUZE100_REVID);
+	printf("PMIC: PFUZE100! DEV_ID=0x%x REV_ID=0x%x\n", dev_id, rev_id);
+
+	/* Set SW1AB stanby volage to 0.975V */
+	reg = pmic_reg_read(dev, PFUZE100_SW1ABSTBY);
+	reg &= ~SW1x_STBY_MASK;
+	reg |= SW1x_0_975V;
+	pmic_reg_write(dev, PFUZE100_SW1ABSTBY, reg);
+
+	/* Set SW1AB/VDDARM step ramp up time from 16us to 4us/25mV */
+	reg = pmic_reg_read(dev, PFUZE100_SW1ABCONF);
+	reg &= ~SW1xCONF_DVSSPEED_MASK;
+	reg |= SW1xCONF_DVSSPEED_4US;
+	pmic_reg_write(dev, PFUZE100_SW1ABCONF, reg);
+
+	/* Set SW1C standby voltage to 0.975V */
+	reg = pmic_reg_read(dev, PFUZE100_SW1CSTBY);
+	reg &= ~SW1x_STBY_MASK;
+	reg |= SW1x_0_975V;
+	pmic_reg_write(dev, PFUZE100_SW1CSTBY, reg);
+
+	/* Set SW1C/VDDSOC step ramp up time from 16us to 4us/25mV */
+	reg = pmic_reg_read(dev, PFUZE100_SW1CCONF);
+	reg &= ~SW1xCONF_DVSSPEED_MASK;
+	reg |= SW1xCONF_DVSSPEED_4US;
+	pmic_reg_write(dev, PFUZE100_SW1CCONF, reg);
+
+	return dev;
+}
 #endif
diff --git a/board/freescale/common/pfuze.h b/board/freescale/common/pfuze.h
index 53cfc99..3f8c107 100644
--- a/board/freescale/common/pfuze.h
+++ b/board/freescale/common/pfuze.h
@@ -7,7 +7,12 @@
 #ifndef __PFUZE_BOARD_HELPER__
 #define __PFUZE_BOARD_HELPER__
 
+#ifdef CONFIG_DM_PMIC_PFUZE100
+struct udevice *pfuze_common_init(void);
+int pfuze_mode_init(struct udevice *dev, u32 mode);
+#else
 struct pmic *pfuze_common_init(unsigned char i2cbus);
 int pfuze_mode_init(struct pmic *p, u32 mode);
+#endif
 
 #endif