2 * Copyright (C) 2011 Samsung Electronics
3 * Lukasz Majewski <l.majewski@samsung.com>
5 * SPDX-License-Identifier: GPL-2.0+
10 #include <power/pmic.h>
14 #if defined(CONFIG_POWER_FSL_MC13892)
15 #define FSL_PMIC_I2C_LENGTH 3
16 #elif defined(CONFIG_POWER_FSL_MC34704)
17 #define FSL_PMIC_I2C_LENGTH 1
20 #if defined(CONFIG_POWER_SPI)
21 static u32 pmic_spi_prepare_tx(u32 reg, u32 *val, u32 write)
23 return (write << 31) | (reg << 25) | (*val & 0x00FFFFFF);
27 int pmic_init(unsigned char bus)
29 static const char name[] = "FSL_PMIC";
30 struct pmic *p = pmic_alloc();
33 printf("%s: POWER allocation error!\n", __func__);
38 p->number_of_regs = PMIC_NUM_OF_REGS;
41 #if defined(CONFIG_POWER_SPI)
42 p->interface = PMIC_SPI;
43 p->hw.spi.cs = CONFIG_FSL_PMIC_CS;
44 p->hw.spi.clk = CONFIG_FSL_PMIC_CLK;
45 p->hw.spi.mode = CONFIG_FSL_PMIC_MODE;
46 p->hw.spi.bitlen = CONFIG_FSL_PMIC_BITLEN;
47 p->hw.spi.flags = SPI_XFER_BEGIN | SPI_XFER_END;
48 p->hw.spi.prepare_tx = pmic_spi_prepare_tx;
49 #elif defined(CONFIG_POWER_I2C)
50 p->interface = PMIC_I2C;
51 p->hw.i2c.addr = CONFIG_SYS_FSL_PMIC_I2C_ADDR;
52 p->hw.i2c.tx_num = FSL_PMIC_I2C_LENGTH;
54 #error "You must select CONFIG_POWER_SPI or CONFIG_POWER_I2C"