From: Joy Zou <joy....@nxp.com>

Support NXP pmic pf0900

Reviewed-by: Ye Li <ye...@nxp.com>
Signed-off-by: Joy Zou <joy....@nxp.com>
Signed-off-by: Peng Fan <peng....@nxp.com>
---
 drivers/power/pmic/Kconfig  |  15 ++
 drivers/power/pmic/Makefile |   1 +
 drivers/power/pmic/pf0900.c | 174 +++++++++++++++++++++++
 include/power/pf0900.h      | 269 ++++++++++++++++++++++++++++++++++++
 4 files changed, 459 insertions(+)
 create mode 100644 drivers/power/pmic/pf0900.c
 create mode 100644 include/power/pf0900.h

diff --git a/drivers/power/pmic/Kconfig b/drivers/power/pmic/Kconfig
index 562c1a3b122..1a5ef279ed6 100644
--- a/drivers/power/pmic/Kconfig
+++ b/drivers/power/pmic/Kconfig
@@ -171,6 +171,21 @@ config SPL_DM_PMIC_PCA9450
          This config enables implementation of driver-model pmic uclass 
features
          for PMIC PCA9450 in SPL. The driver implements read/write operations.
 
+config DM_PMIC_PF0900
+       bool "Enable Driver Model for PMIC PF0900"
+       depends on DM_I2C
+       help
+         This config enables implementation of driver-model pmic uclass 
features
+         for PMIC PF0900. The driver implements read/write operations.
+
+config SPL_DM_PMIC_PF0900
+       bool "Enable Driver Model for PMIC PF0900 in SPL"
+       depends on SPL_DM_PMIC
+       depends on SPL_DM_I2C
+       help
+         This config enables implementation of driver-model pmic uclass 
features
+         for PMIC PF0900 in SPL. The driver implements read/write operations.
+
 config DM_PMIC_PFUZE100
        bool "Enable Driver Model for PMIC PFUZE100"
        ---help---
diff --git a/drivers/power/pmic/Makefile b/drivers/power/pmic/Makefile
index a2d59deeed8..0041ab59406 100644
--- a/drivers/power/pmic/Makefile
+++ b/drivers/power/pmic/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_$(SPL_)DM_PMIC_BD71837) += bd71837.o
 obj-$(CONFIG_$(SPL_)DM_PMIC_MP5416) += mp5416.o
 obj-$(CONFIG_$(SPL_)DM_PMIC_PFUZE100) += pfuze100.o
 obj-$(CONFIG_$(SPL_)DM_PMIC_PCA9450) += pca9450.o
+obj-$(CONFIG_$(SPL_)DM_PMIC_PF0900) += pf0900.o
 obj-$(CONFIG_PMIC_S2MPS11) += s2mps11.o
 obj-$(CONFIG_DM_PMIC_SANDBOX) += sandbox.o i2c_pmic_emul.o
 obj-$(CONFIG_PMIC_AB8500) += ab8500.o
diff --git a/drivers/power/pmic/pf0900.c b/drivers/power/pmic/pf0900.c
new file mode 100644
index 00000000000..f38933ad94a
--- /dev/null
+++ b/drivers/power/pmic/pf0900.c
@@ -0,0 +1,174 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright 2023 NXP
+ */
+
+#include <fdtdec.h>
+#include <errno.h>
+#include <dm.h>
+#include <dm/device_compat.h>
+#include <i2c.h>
+#include <linux/err.h>
+#include <log.h>
+#include <asm/global_data.h>
+#include <asm-generic/gpio.h>
+#include <power/pmic.h>
+#include <power/regulator.h>
+#include <power/pf0900.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static const struct pmic_child_info pmic_children_info[] = {
+       /* VAON */
+       { .prefix = "V", .driver = PF0900_REGULATOR_DRIVER},
+       /* sw */
+       { .prefix = "S", .driver = PF0900_REGULATOR_DRIVER},
+       /* ldo */
+       { .prefix = "L", .driver = PF0900_REGULATOR_DRIVER},
+       { },
+};
+
+static int pf0900_reg_count(struct udevice *dev)
+{
+       return PF0900_MAX_REGISTER;
+}
+
+static u8 crc8_j1850(u8 *data, u8 length)
+{
+       u8 t_crc;
+       u8 i, j;
+
+       t_crc = 0xFF;
+       for (i = 0; i < length; i++) {
+               t_crc ^= data[i];
+               for (j = 0; j < 8; j++) {
+                       if ((t_crc & 0x80) != 0) {
+                               t_crc <<= 1;
+                               t_crc ^= 0x1D;
+                       } else {
+                               t_crc <<= 1;
+                       }
+               }
+       }
+       return t_crc;
+}
+
+static int pf0900_read(struct udevice *dev, uint reg, u8 *buff,
+                      int len)
+{
+       u8 crcBuf[3];
+       u8 data[2], crc;
+       int ret;
+       struct pf0900_priv *priv = dev_get_priv(dev);
+
+       if (reg < PF0900_MAX_REGISTER) {
+               ret = dm_i2c_read(dev, reg, data,
+                                 priv->crc_en ? 2U : 1U);
+               if (ret)
+                       return ret;
+               buff[0] = data[0];
+               if (priv->crc_en) {
+                       /* Get CRC */
+                       crcBuf[0] = priv->addr << 1U | 0x1U;
+                       crcBuf[1] = reg;
+                       crcBuf[2] = data[0];
+                       crc = crc8_j1850(crcBuf, 3U);
+                       if (crc != data[1])
+                               return -EINVAL;
+               }
+       } else {
+               return -EINVAL;
+       }
+       return ret;
+}
+
+static int pf0900_write(struct udevice *dev, uint reg, const u8 *buff,
+                       int len)
+{
+       u8 crcBuf[3];
+       u8 data[2];
+       int ret;
+       struct pf0900_priv *priv = dev_get_priv(dev);
+
+       if (reg < PF0900_MAX_REGISTER) {
+               data[0] = buff[0];
+               if (priv->crc_en) {
+                       /* Get CRC */
+                       crcBuf[0] = priv->addr << 1U;
+                       crcBuf[1] = reg;
+                       crcBuf[2] = data[0];
+                       data[1] = crc8_j1850(crcBuf, 3U);
+               }
+               /* Write data */
+               ret = dm_i2c_write(dev, reg, data,
+                                  priv->crc_en ? 2U : 1U);
+               if (ret)
+                       return ret;
+       }
+       return ret;
+}
+
+static int pf0900_bind(struct udevice *dev)
+{
+       int children;
+       ofnode regulators_node;
+
+       regulators_node = dev_read_subnode(dev, "regulators");
+       if (!ofnode_valid(regulators_node)) {
+               debug("%s: %s regulators subnode not found!", __func__,
+                     dev->name);
+               return -ENXIO;
+       }
+
+       children = pmic_bind_children(dev, regulators_node,
+                                     pmic_children_info);
+       if (!children)
+               debug("%s: %s - no child found\n", __func__, dev->name);
+
+       /* Always return success for this device */
+       return 0;
+}
+
+static int pf0900_probe(struct udevice *dev)
+{
+       struct pf0900_priv *priv = dev_get_priv(dev);
+       unsigned int reg;
+       u8 dev_id;
+       int ret = 0;
+
+       ret = ofnode_read_u32(dev_ofnode(dev), "reg", &reg);
+       if (ret)
+               return ret;
+       priv->addr = reg;
+
+       if (ofnode_read_bool(dev_ofnode(dev), "i2c-crc-enable"))
+               priv->crc_en = true;
+       ret = pf0900_read(dev, PF0900_REG_DEV_ID, &dev_id, 1);
+       if (ret)
+               return ret;
+       if ((dev_id & 0x1F) == 0)
+               return ret;
+       else
+               return -EINVAL;
+}
+
+static struct dm_pmic_ops pf0900_ops = {
+       .reg_count = pf0900_reg_count,
+       .read = pf0900_read,
+       .write = pf0900_write,
+};
+
+static const struct udevice_id pf0900_ids[] = {
+       { .compatible = "nxp,pf0900", .data = PF0900_TYPE_PF0900, },
+       { }
+};
+
+U_BOOT_DRIVER(pmic_pf0900) = {
+       .name = "pf0900 pmic",
+       .id = UCLASS_PMIC,
+       .of_match = pf0900_ids,
+       .bind = pf0900_bind,
+       .probe = pf0900_probe,
+       .ops = &pf0900_ops,
+       .priv_auto = sizeof(struct pf0900_priv),
+};
diff --git a/include/power/pf0900.h b/include/power/pf0900.h
new file mode 100644
index 00000000000..f0d93f1c795
--- /dev/null
+++ b/include/power/pf0900.h
@@ -0,0 +1,269 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright 2023 NXP
+ */
+
+#ifndef PF0900_H_
+#define PF0900_H_
+
+#define PF0900_REGULATOR_DRIVER "pf0900_regulator"
+
+struct pf0900_priv {
+       u8 addr;
+       bool crc_en;
+};
+
+enum pf0900_chip_type {
+       PF0900_TYPE_PF0900 = 0,
+       PF0900_TYPE_AMOUNT,
+};
+
+enum {
+       PF0900_SW1 = 0,
+       PF0900_SW2,
+       PF0900_SW3,
+       PF0900_SW4,
+       PF0900_SW5,
+       PF0900_LDO1,
+       PF0900_LDO2,
+       PF0900_LDO3,
+       PF0900_VAON,
+       PF0900_REGULATOR_CNT,
+};
+
+enum {
+       PF0900_DVS_LEVEL_RUN = 0,
+       PF0900_DVS_LEVEL_STANDBY,
+       PF0900_DVS_LEVEL_MAX,
+};
+
+#define PF0900_VAON_VOLTAGE_NUM 0x03
+
+#define PF0900_SW1_VOLTAGE_NUM 0x100
+#define PF0900_SW2_VOLTAGE_NUM 0x100
+#define PF0900_SW3_VOLTAGE_NUM 0x100
+#define PF0900_SW4_VOLTAGE_NUM 0x100
+#define PF0900_SW5_VOLTAGE_NUM 0x100
+
+#define PF0900_LDO1_VOLTAGE_NUM        0x20
+#define PF0900_LDO2_VOLTAGE_NUM        0x20
+#define PF0900_LDO3_VOLTAGE_NUM        0x20
+
+enum {
+       PF0900_REG_DEV_ID           = 0x00,
+       PF0900_REG_DEV_FAM          = 0x01,
+       PF0900_REG_REV_ID           = 0x02,
+       PF0900_REG_PROG_ID1         = 0x03,
+       PF0900_REG_PROG_ID2         = 0x04,
+       PF0900_REG_SYSTEM_INT       = 0x05,
+       PF0900_REG_STATUS1_INT      = 0x06,
+       PF0900_REG_STATUS1_MSK      = 0x07,
+       PF0900_REG_STATUS1_SNS      = 0x08,
+       PF0900_REG_STATUS2_INT      = 0x09,
+       PF0900_REG_STATUS2_MSK      = 0x0A,
+       PF0900_REG_STATUS2_SNS      = 0x0B,
+       PF0900_REG_STATUS3_INT      = 0x0C,
+       PF0900_REG_STATUS3_MSK      = 0x0D,
+       PF0900_REG_SW_MODE_INT      = 0x0E,
+       PF0900_REG_SW_MODE_MSK      = 0x0F,
+       PF0900_REG_SW_ILIM_INT      = 0x10,
+       PF0900_REG_SW_ILIM_MSK      = 0x11,
+       PF0900_REG_SW_ILIM_SNS      = 0x12,
+       PF0900_REG_LDO_ILIM_INT     = 0x13,
+       PF0900_REG_LDO_ILIM_MSK     = 0x14,
+       PF0900_REG_LDO_ILIM_SNS     = 0x15,
+       PF0900_REG_SW_UV_INT        = 0x16,
+       PF0900_REG_SW_UV_MSK        = 0x17,
+       PF0900_REG_SW_UV_SNS        = 0x18,
+       PF0900_REG_SW_OV_INT        = 0x19,
+       PF0900_REG_SW_OV_MSK        = 0x1A,
+       PF0900_REG_SW_OV_SNS        = 0x1B,
+       PF0900_REG_LDO_UV_INT       = 0x1C,
+       PF0900_REG_LDO_UV_MSK       = 0x1D,
+       PF0900_REG_LDO_UV_SNS       = 0x1E,
+       PF0900_REG_LDO_OV_INT       = 0x1F,
+       PF0900_REG_LDO_OV_MSK       = 0x20,
+       PF0900_REG_LDO_OV_SNS       = 0x21,
+       PF0900_REG_PWRON_INT        = 0x22,
+       PF0900_REG_IO_INT           = 0x24,
+       PF0900_REG_IO_MSK           = 0x25,
+       PF0900_REG_IO_SNS           = 0x26,
+       PF0900_REG_IOSHORT_SNS      = 0x27,
+       PF0900_REG_ABIST_OV1        = 0x28,
+       PF0900_REG_ABIST_OV2        = 0x29,
+       PF0900_REG_ABIST_UV1        = 0x2A,
+       PF0900_REG_ABIST_UV2        = 0x2B,
+       PF0900_REG_ABIST_IO         = 0x2C,
+       PF0900_REG_TEST_FLAGS       = 0x2D,
+       PF0900_REG_HFAULT_FLAGS     = 0x2E,
+       PF0900_REG_FAULT_FLAGS      = 0x2F,
+       PF0900_REG_FS0B_CFG         = 0x30,
+       PF0900_REG_FCCU_CFG         = 0x31,
+       PF0900_REG_RSTB_CFG1        = 0x32,
+       PF0900_REG_SYSTEM_CMD       = 0x33,
+       PF0900_REG_FS0B_CMD         = 0x34,
+       PF0900_REG_SECURE_WR1       = 0x35,
+       PF0900_REG_SECURE_WR2       = 0x36,
+       PF0900_REG_VMON_CFG1        = 0x37,
+       PF0900_REG_SYS_CFG1         = 0x38,
+       PF0900_REG_GPO_CFG          = 0x39,
+       PF0900_REG_GPO_CTRL         = 0x3A,
+       PF0900_REG_PWRUP_CFG        = 0x3B,
+       PF0900_REG_RSTB_PWRUP       = 0x3C,
+       PF0900_REG_GPIO1_PWRUP      = 0x3D,
+       PF0900_REG_GPIO2_PWRUP      = 0x3E,
+       PF0900_REG_GPIO3_PWRUP      = 0x3F,
+       PF0900_REG_GPIO4_PWRUP      = 0x40,
+       PF0900_REG_VMON1_PWRUP      = 0x41,
+       PF0900_REG_VMON2_PWRUP      = 0x42,
+       PF0900_REG_SW1_PWRUP        = 0x43,
+       PF0900_REG_SW2_PWRUP        = 0x44,
+       PF0900_REG_SW3_PWRUP        = 0x45,
+       PF0900_REG_SW4_PWRUP        = 0x46,
+       PF0900_REG_SW5_PWRUP        = 0x47,
+       PF0900_REG_LDO1_PWRUP       = 0x48,
+       PF0900_REG_LDO2_PWRUP       = 0x49,
+       PF0900_REG_LDO3_PWRUP       = 0x4A,
+       PF0900_REG_VAON_PWRUP       = 0x4B,
+       PF0900_REG_FREQ_CTRL        = 0x4C,
+       PF0900_REG_PWRON_CFG        = 0x4D,
+       PF0900_REG_WD_CTRL1         = 0x4E,
+       PF0900_REG_WD_CTRL2         = 0x4F,
+       PF0900_REG_WD_CFG1          = 0x50,
+       PF0900_REG_WD_CFG2          = 0x51,
+       PF0900_REG_WD_CNT1          = 0x52,
+       PF0900_REG_WD_CNT2          = 0x53,
+       PF0900_REG_FAULT_CFG        = 0x54,
+       PF0900_REG_FAULT_CNT        = 0x55,
+       PF0900_REG_DFS_CNT          = 0x56,
+       PF0900_REG_AMUX_CFG         = 0x57,
+       PF0900_REG_VMON1_RUN_CFG    = 0x58,
+       PF0900_REG_VMON1_STBY_CFG   = 0x59,
+       PF0900_REG_VMON1_CTRL       = 0x5A,
+       PF0900_REG_VMON2_RUN_CFG    = 0x5B,
+       PF0900_REG_VMON2_STBY_CFG   = 0x5C,
+       PF0900_REG_VMON2_CTRL       = 0x5D,
+       PF0900_REG_SW1_VRUN         = 0x5E,
+       PF0900_REG_SW1_VSTBY        = 0x5F,
+       PF0900_REG_SW1_MODE         = 0x60,
+       PF0900_REG_SW1_CFG1         = 0x61,
+       PF0900_REG_SW1_CFG2         = 0x62,
+       PF0900_REG_SW2_VRUN         = 0x63,
+       PF0900_REG_SW2_VSTBY        = 0x64,
+       PF0900_REG_SW2_MODE         = 0x65,
+       PF0900_REG_SW2_CFG1         = 0x66,
+       PF0900_REG_SW2_CFG2         = 0x67,
+       PF0900_REG_SW3_VRUN         = 0x68,
+       PF0900_REG_SW3_VSTBY        = 0x69,
+       PF0900_REG_SW3_MODE         = 0x6A,
+       PF0900_REG_SW3_CFG1         = 0x6B,
+       PF0900_REG_SW3_CFG2         = 0x6C,
+       PF0900_REG_SW4_VRUN         = 0x6D,
+       PF0900_REG_SW4_VSTBY        = 0x6E,
+       PF0900_REG_SW4_MODE         = 0x6F,
+       PF0900_REG_SW4_CFG1         = 0x70,
+       PF0900_REG_SW4_CFG2         = 0x71,
+       PF0900_REG_SW5_VRUN         = 0x72,
+       PF0900_REG_SW5_VSTBY        = 0x73,
+       PF0900_REG_SW5_MODE         = 0x74,
+       PF0900_REG_SW5_CFG1         = 0x75,
+       PF0900_REG_SW5_CFG2         = 0x76,
+       PF0900_REG_LDO1_RUN         = 0x77,
+       PF0900_REG_LDO1_STBY        = 0x78,
+       PF0900_REG_LDO1_CFG2        = 0x79,
+       PF0900_REG_LDO2_RUN         = 0x7A,
+       PF0900_REG_LDO2_STBY        = 0x7B,
+       PF0900_REG_LDO2_CFG2        = 0x7C,
+       PF0900_REG_LDO3_RUN         = 0x7D,
+       PF0900_REG_LDO3_STBY        = 0x7E,
+       PF0900_REG_LDO3_CFG2        = 0x7F,
+       PF0900_REG_VAON_CFG1        = 0x80,
+       PF0900_REG_VAON_CFG2        = 0x81,
+       PF0900_REG_SYS_DIAG         = 0x82,
+       PF0900_MAX_REGISTER,
+};
+
+/* PF0900 SW MODE */
+#define SW_RUN_MODE_OFF                        0x00
+#define SW_RUN_MODE_PWM                        0x01
+#define SW_RUN_MODE_PFM                        0x02
+#define SW_STBY_MODE_OFF               0x00
+#define SW_STBY_MODE_PWM               0x04
+#define SW_STBY_MODE_PFM               0x08
+
+/* PF0900 SW MODE MASK */
+#define SW_RUN_MODE_MASK               0x03
+#define SW_STBY_MODE_MASK              0x0c
+
+/* PF0900 SW VRUN MASK */
+#define SW_VRUN_MASK                   0xFF
+#define SW_STBY_MASK                   0xFF
+
+/* PF0900_REG_VAON_CFG1 bits */
+#define VAON_MASK                      0x03
+#define VAON_1P8V                      0x01
+
+/* PF0900_REG_SWX_CFG1 MASK */
+#define SW_RAMP_MASK                   0x18
+
+/* PF0900_REG_LDO1_RUN MASK */
+#define VLDO1_RUN_MASK                 0x1F
+#define LDO1_RUN_EN_MASK               0x20
+#define LDO1_STBY_EN_MASK              0x20
+
+/* PF0900_REG_LDO2_RUN MASK */
+#define VLDO2_RUN_MASK                 0x1F
+#define LDO2_RUN_EN_MASK               0x20
+#define LDO2_STBY_EN_MASK              0x20
+
+/* PF0900_REG_LDO3_RUN MASK */
+#define VLDO3_RUN_MASK                 0x1F
+#define LDO3_RUN_EN_MASK               0x20
+#define LDO3_STBY_EN_MASK              0x20
+
+/* PF0900_REG_GPO_CTRL MASK */
+#define GPO1_RUN_MASK                  0x1
+#define GPO2_RUN_MASK                  0x2
+#define GPO3_RUN_MASK                  0x4
+#define GPO4_RUN_MASK                  0x8
+#define GPO1_STBY_MASK                 0x10
+#define GPO2_STBY_MASK                 0x20
+#define GPO3_STBY_MASK                 0x40
+#define GPO4_STBY_MASK                 0x80
+
+/* PF0900_REG_STSTEM_INT bits */
+#define IRQ_EWARN                      0x80
+#define IRQ_GPIO                       0x40
+#define IRQ_OV                         0x20
+#define IRQ_UV                         0x10
+#define IRQ_ILIM                       0x08
+#define IRQ_MODE                       0x04
+#define IRQ_STATUS2                    0x02
+#define IRQ_STATUS1                    0x01
+
+/* PF0900_REG_STATUS1_INT bits */
+#define IRQ_SDWN                       0x80
+#define IRQ_FREQ_RDY                   0x40
+#define IRQ_DCRC                       0x20
+#define IRQ_I2C_CRC                    0x10
+#define IRQ_PWRUP                      0x08
+#define IRQ_PWRDN                      0x04
+#define IRQ_FSYNC_FLT                  0x02
+#define IRQ_VIN_OV                     0x01
+
+/* PF0900_REG_STATUS2_INT bits */
+#define IRQ_VANA_OV                    0x80
+#define IRQ_VDIG_OV                    0x40
+#define IRQ_BGMON                      0x20
+#define IRQ_CLKMON                     0x10
+#define IRQ_THERM_155                  0x08
+#define IRQ_THERM_140                  0x04
+#define IRQ_THERM_125                  0x02
+#define IRQ_THERM_110                  0x01
+
+/* PF0900_REG_STATUS3_INT bits */
+#define IRQ_BAD_CMD                    0x04
+#define IRQ_LBIST_DONE                 0x02
+#define IRQ_SHS                                0x01
+
+#endif
-- 
2.35.3

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