ram: k3-am654: add support for LPDDR4 and DDR3L DDRs

[oweals/u-boot.git] / drivers / power / twl6030.c

diff --git a/drivers/power/twl6030.c b/drivers/power/twl6030.c
index df43cca34a8f271f6303a9fe4d5c958018e1bcd8..103960d48d2421ce8dfce5cda5524a5c386a717d 100644 (file)
--- a/drivers/power/twl6030.c
+++ b/drivers/power/twl6030.c
@@ -1,11 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * (C) Copyright 2010
  * Texas Instruments, <www.ti.com>
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 #include <config.h>
-#ifdef CONFIG_TWL6030_POWER
 
 #include <twl6030.h>
 
@@ -29,6 +27,7 @@ static struct twl6030_data twl6032_info = {
        .vbat_shift     = TWL6032_VBAT_SHIFT,
 };
 
+
 static int twl6030_gpadc_read_channel(u8 channel_no)
 {
        u8 lsb = 0;
@@ -72,6 +71,13 @@ static int twl6030_gpadc_sw2_trigger(void)
        return 0;
 }
 
+void twl6030_power_off(void)
+{
+       twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_PHOENIX_DEV_ON,
+               TWL6030_PHOENIX_APP_DEVOFF | TWL6030_PHOENIX_CON_DEVOFF |
+               TWL6030_PHOENIX_MOD_DEVOFF);
+}
+
 void twl6030_stop_usb_charging(void)
 {
        twl6030_i2c_write_u8(TWL6030_CHIP_CHARGER, CONTROLLER_CTRL1, 0);
@@ -224,9 +230,9 @@ void twl6030_power_mmc_init(int dev_index)
                /* Enable P1 output for VMMC */
                twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_VMMC_CFG_STATE,
                        TWL6030_CFG_STATE_P1 | TWL6030_CFG_STATE_ON);
-
-               twl6030_i2c_read_u8(TWL6030_CHIP_PM, TWL6030_PH_STS_BOOT, &value);
        } else if (dev_index == 1) {
+               twl6030_i2c_read_u8(TWL6030_CHIP_PM, TWL6030_PH_STS_BOOT,
+                                   &value);
                /* BOOT2 indicates 1.8V/2.8V VAUX1 for eMMC */
                if (value & TWL6030_PH_STS_BOOT2) {
                        /* 1.8V voltage output for VAUX1 */
@@ -259,6 +265,45 @@ void twl6030_usb_device_settings()
        /* Select the input supply for VUSB regulator */
        twl6030_i2c_read_u8(TWL6030_CHIP_PM, TWL6030_MISC2, &value);
        value |= TWL6030_MISC2_VUSB_IN_VSYS;
+       value &= ~TWL6030_MISC2_VUSB_IN_PMID;
        twl6030_i2c_write_u8(TWL6030_CHIP_PM, TWL6030_MISC2, value);
 }
+
+#ifdef CONFIG_DM_I2C
+int twl6030_i2c_write_u8(u8 chip_no, u8 reg, u8 val)
+{
+       struct udevice *dev;
+       int ret;
+
+       ret = i2c_get_chip_for_busnum(0, chip_no, 1, &dev);
+       if (ret) {
+               pr_err("unable to get I2C bus. ret %d\n", ret);
+               return ret;
+       }
+       ret = dm_i2c_reg_write(dev, reg, val);
+       if (ret) {
+               pr_err("writing to twl6030 failed. ret %d\n", ret);
+               return ret;
+       }
+       return 0;
+}
+
+int twl6030_i2c_read_u8(u8 chip_no, u8 reg, u8 *valp)
+{
+       struct udevice *dev;
+       int ret;
+
+       ret = i2c_get_chip_for_busnum(0, chip_no, 1, &dev);
+       if (ret) {
+               pr_err("unable to get I2C bus. ret %d\n", ret);
+               return ret;
+       }
+       ret = dm_i2c_reg_read(dev, reg);
+       if (ret < 0) {
+               pr_err("reading from twl6030 failed. ret %d\n", ret);
+               return ret;
+       }
+       *valp = (u8)ret;
+       return 0;
+}
 #endif