blob: ed778f333e5387d3e85a4544557a8fabfb20962a (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
|
/*
* 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_PMIC_FSL_MC13892)
#define FSL_PMIC_I2C_LENGTH 3
#elif defined(CONFIG_PMIC_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;
#if defined(CONFIG_POWER_SPI)
p->interface = PMIC_SPI;
p->bus = CONFIG_FSL_PMIC_BUS;
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;
p->bus = bus;
#else
#error "You must select CONFIG_POWER_SPI or CONFIG_PMIC_I2C"
#endif
return 0;
}
|
