2 * Copyright (C) 2011 Samsung Electronics
3 * Lukasz Majewski <l.majewski@samsung.com>
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 #include <power/pmic.h>
30 #if defined(CONFIG_PMIC_FSL_MC13892)
31 #define FSL_PMIC_I2C_LENGTH 3
32 #elif defined(CONFIG_PMIC_FSL_MC34704)
33 #define FSL_PMIC_I2C_LENGTH 1
36 #if defined(CONFIG_POWER_SPI)
37 static u32 pmic_spi_prepare_tx(u32 reg, u32 *val, u32 write)
39 return (write << 31) | (reg << 25) | (*val & 0x00FFFFFF);
43 int pmic_init(unsigned char bus)
45 static const char name[] = "FSL_PMIC";
46 struct pmic *p = pmic_alloc();
49 printf("%s: POWER allocation error!\n", __func__);
54 p->number_of_regs = PMIC_NUM_OF_REGS;
56 #if defined(CONFIG_POWER_SPI)
57 p->interface = PMIC_SPI;
58 p->bus = CONFIG_FSL_PMIC_BUS;
59 p->hw.spi.cs = CONFIG_FSL_PMIC_CS;
60 p->hw.spi.clk = CONFIG_FSL_PMIC_CLK;
61 p->hw.spi.mode = CONFIG_FSL_PMIC_MODE;
62 p->hw.spi.bitlen = CONFIG_FSL_PMIC_BITLEN;
63 p->hw.spi.flags = SPI_XFER_BEGIN | SPI_XFER_END;
64 p->hw.spi.prepare_tx = pmic_spi_prepare_tx;
65 #elif defined(CONFIG_POWER_I2C)
66 p->interface = PMIC_I2C;
67 p->hw.i2c.addr = CONFIG_SYS_FSL_PMIC_I2C_ADDR;
68 p->hw.i2c.tx_num = FSL_PMIC_I2C_LENGTH;
71 #error "You must select CONFIG_POWER_SPI or CONFIG_PMIC_I2C"