uboot-phytec

// SPDX-License-Identifier: GPL-2.0+

/*

 *  Copyright (C) 2011 Samsung Electronics

 *  Lukasz Majewski <l.majewski@samsung.com>

 */

​

#include <common.h>

#include <spi.h>

#include <power/pmic.h>

#include <fsl_pmic.h>

#include <errno.h>

​

#if defined(CONFIG_POWER_FSL_MC13892)

#define FSL_PMIC_I2C_LENGTH 3

#elif defined(CONFIG_POWER_FSL_MC34704)

#define FSL_PMIC_I2C_LENGTH 1

#endif

​

#if defined(CONFIG_POWER_SPI)

static u32 pmic_spi_prepare_tx(u32 reg, u32 *val, u32 write)

{

    return (write << 31) | (reg << 25) | (*val & 0x00FFFFFF);

}

#endif

​

int pmic_init(unsigned char bus)

{

    static const char name[] = "FSL_PMIC";

    struct pmic *p = pmic_alloc();

​

    if (!p) {

        printf("%s: POWER allocation error!\n", __func__);

        return -ENOMEM;

    }

​

    p->name = name;

    p->number_of_regs = PMIC_NUM_OF_REGS;

    p->bus = bus;

​

#if defined(CONFIG_POWER_SPI)

    p->interface = PMIC_SPI;

    p->hw.spi.cs = CONFIG_FSL_PMIC_CS;

    p->hw.spi.clk = CONFIG_FSL_PMIC_CLK;

    p->hw.spi.mode = CONFIG_FSL_PMIC_MODE;

    p->hw.spi.bitlen = CONFIG_FSL_PMIC_BITLEN;

    p->hw.spi.flags = SPI_XFER_BEGIN | SPI_XFER_END;

    p->hw.spi.prepare_tx = pmic_spi_prepare_tx;

#elif defined(CONFIG_POWER_I2C)

    p->interface = PMIC_I2C;

    p->hw.i2c.addr = CONFIG_SYS_FSL_PMIC_I2C_ADDR;

    p->hw.i2c.tx_num = FSL_PMIC_I2C_LENGTH;

#else

#error "You must select CONFIG_POWER_SPI or CONFIG_POWER_I2C"

#endif

​

    return 0;

}