1*4882a593Smuzhiyun /* 2*4882a593Smuzhiyun * Copyright (C) 2011 Samsung Electronics 3*4882a593Smuzhiyun * Lukasz Majewski <l.majewski@samsung.com> 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+ 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #include <common.h> 9*4882a593Smuzhiyun #include <spi.h> 10*4882a593Smuzhiyun #include <power/pmic.h> 11*4882a593Smuzhiyun #include <fsl_pmic.h> 12*4882a593Smuzhiyun #include <errno.h> 13*4882a593Smuzhiyun 14*4882a593Smuzhiyun #if defined(CONFIG_POWER_FSL_MC13892) 15*4882a593Smuzhiyun #define FSL_PMIC_I2C_LENGTH 3 16*4882a593Smuzhiyun #elif defined(CONFIG_POWER_FSL_MC34704) 17*4882a593Smuzhiyun #define FSL_PMIC_I2C_LENGTH 1 18*4882a593Smuzhiyun #endif 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun #if defined(CONFIG_POWER_SPI) pmic_spi_prepare_tx(u32 reg,u32 * val,u32 write)21*4882a593Smuzhiyunstatic u32 pmic_spi_prepare_tx(u32 reg, u32 *val, u32 write) 22*4882a593Smuzhiyun { 23*4882a593Smuzhiyun return (write << 31) | (reg << 25) | (*val & 0x00FFFFFF); 24*4882a593Smuzhiyun } 25*4882a593Smuzhiyun #endif 26*4882a593Smuzhiyun pmic_init(unsigned char bus)27*4882a593Smuzhiyunint pmic_init(unsigned char bus) 28*4882a593Smuzhiyun { 29*4882a593Smuzhiyun static const char name[] = "FSL_PMIC"; 30*4882a593Smuzhiyun struct pmic *p = pmic_alloc(); 31*4882a593Smuzhiyun 32*4882a593Smuzhiyun if (!p) { 33*4882a593Smuzhiyun printf("%s: POWER allocation error!\n", __func__); 34*4882a593Smuzhiyun return -ENOMEM; 35*4882a593Smuzhiyun } 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun p->name = name; 38*4882a593Smuzhiyun p->number_of_regs = PMIC_NUM_OF_REGS; 39*4882a593Smuzhiyun p->bus = bus; 40*4882a593Smuzhiyun 41*4882a593Smuzhiyun #if defined(CONFIG_POWER_SPI) 42*4882a593Smuzhiyun p->interface = PMIC_SPI; 43*4882a593Smuzhiyun p->hw.spi.cs = CONFIG_FSL_PMIC_CS; 44*4882a593Smuzhiyun p->hw.spi.clk = CONFIG_FSL_PMIC_CLK; 45*4882a593Smuzhiyun p->hw.spi.mode = CONFIG_FSL_PMIC_MODE; 46*4882a593Smuzhiyun p->hw.spi.bitlen = CONFIG_FSL_PMIC_BITLEN; 47*4882a593Smuzhiyun p->hw.spi.flags = SPI_XFER_BEGIN | SPI_XFER_END; 48*4882a593Smuzhiyun p->hw.spi.prepare_tx = pmic_spi_prepare_tx; 49*4882a593Smuzhiyun #elif defined(CONFIG_POWER_I2C) 50*4882a593Smuzhiyun p->interface = PMIC_I2C; 51*4882a593Smuzhiyun p->hw.i2c.addr = CONFIG_SYS_FSL_PMIC_I2C_ADDR; 52*4882a593Smuzhiyun p->hw.i2c.tx_num = FSL_PMIC_I2C_LENGTH; 53*4882a593Smuzhiyun #else 54*4882a593Smuzhiyun #error "You must select CONFIG_POWER_SPI or CONFIG_POWER_I2C" 55*4882a593Smuzhiyun #endif 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun return 0; 58*4882a593Smuzhiyun } 59