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// 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;
}
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