/* * Copyright (C) 2011 Samsung Electronics * Lukasz Majewski <l.majewski@samsung.com> * * SPDX-License-Identifier: GPL-2.0+ */ #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; }