1// SPDX-License-Identifier: GPL-2.0+
2/*
3 *  Copyright (C) 2011 Samsung Electronics
4 *  Lukasz Majewski <l.majewski@samsung.com>
5 */
6
7#include <common.h>
8#include <spi.h>
9#include <power/pmic.h>
10#include <fsl_pmic.h>
11#include <errno.h>
12
13#if defined(CONFIG_POWER_FSL_MC13892)
14#define FSL_PMIC_I2C_LENGTH	3
15#elif defined(CONFIG_POWER_FSL_MC34704)
16#define FSL_PMIC_I2C_LENGTH	1
17#endif
18
19#if defined(CONFIG_POWER_SPI)
20static u32 pmic_spi_prepare_tx(u32 reg, u32 *val, u32 write)
21{
22	return (write << 31) | (reg << 25) | (*val & 0x00FFFFFF);
23}
24#endif
25
26int pmic_init(unsigned char bus)
27{
28	static const char name[] = "FSL_PMIC";
29	struct pmic *p = pmic_alloc();
30
31	if (!p) {
32		printf("%s: POWER allocation error!\n", __func__);
33		return -ENOMEM;
34	}
35
36	p->name = name;
37	p->number_of_regs = PMIC_NUM_OF_REGS;
38	p->bus = bus;
39
40#if defined(CONFIG_POWER_SPI)
41	p->interface = PMIC_SPI;
42	p->hw.spi.cs = CFG_FSL_PMIC_CS;
43	p->hw.spi.clk = CFG_FSL_PMIC_CLK;
44	p->hw.spi.mode = CFG_FSL_PMIC_MODE;
45	p->hw.spi.bitlen = CFG_FSL_PMIC_BITLEN;
46	p->hw.spi.flags = SPI_XFER_BEGIN | SPI_XFER_END;
47	p->hw.spi.prepare_tx = pmic_spi_prepare_tx;
48#elif defined(CONFIG_POWER_I2C)
49	p->interface = PMIC_I2C;
50	p->hw.i2c.addr = CFG_SYS_FSL_PMIC_I2C_ADDR;
51	p->hw.i2c.tx_num = FSL_PMIC_I2C_LENGTH;
52#endif
53
54	return 0;
55}
56