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b2e5add3 SB |
1 | /* |
2 | * Copyright (C) 2011 Samsung Electronics | |
3 | * Lukasz Majewski <l.majewski@samsung.com> | |
4 | * | |
5 | * See file CREDITS for list of people who contributed to this | |
6 | * project. | |
7 | * | |
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. | |
12 | * | |
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. | |
17 | * | |
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, | |
21 | * MA 02111-1307 USA | |
22 | */ | |
23 | ||
24 | #include <common.h> | |
25 | #include <spi.h> | |
c7336815 | 26 | #include <power/pmic.h> |
b2e5add3 | 27 | #include <fsl_pmic.h> |
c7336815 | 28 | #include <errno.h> |
b2e5add3 | 29 | |
b7b7d3cc | 30 | #if defined(CONFIG_PMIC_SPI) |
b2e5add3 SB |
31 | static u32 pmic_spi_prepare_tx(u32 reg, u32 *val, u32 write) |
32 | { | |
435a7285 | 33 | return (write << 31) | (reg << 25) | (*val & 0x00FFFFFF); |
b2e5add3 | 34 | } |
b7b7d3cc | 35 | #endif |
b2e5add3 | 36 | |
c7336815 | 37 | int pmic_init(unsigned char bus) |
b2e5add3 | 38 | { |
b2e5add3 | 39 | static const char name[] = "FSL_PMIC"; |
c7336815 ŁM |
40 | struct pmic *p = pmic_alloc(); |
41 | ||
42 | if (!p) { | |
43 | printf("%s: POWER allocation error!\n", __func__); | |
44 | return -ENOMEM; | |
45 | } | |
b2e5add3 | 46 | |
b2e5add3 | 47 | p->name = name; |
b2e5add3 | 48 | p->number_of_regs = PMIC_NUM_OF_REGS; |
b2e5add3 | 49 | |
b7b7d3cc SB |
50 | #if defined(CONFIG_PMIC_SPI) |
51 | p->interface = PMIC_SPI; | |
52 | p->bus = CONFIG_FSL_PMIC_BUS; | |
b2e5add3 SB |
53 | p->hw.spi.cs = CONFIG_FSL_PMIC_CS; |
54 | p->hw.spi.clk = CONFIG_FSL_PMIC_CLK; | |
55 | p->hw.spi.mode = CONFIG_FSL_PMIC_MODE; | |
56 | p->hw.spi.bitlen = CONFIG_FSL_PMIC_BITLEN; | |
57 | p->hw.spi.flags = SPI_XFER_BEGIN | SPI_XFER_END; | |
58 | p->hw.spi.prepare_tx = pmic_spi_prepare_tx; | |
b7b7d3cc SB |
59 | #elif defined(CONFIG_PMIC_I2C) |
60 | p->interface = PMIC_I2C; | |
61 | p->hw.i2c.addr = CONFIG_SYS_FSL_PMIC_I2C_ADDR; | |
62 | p->hw.i2c.tx_num = 3; | |
c7336815 | 63 | p->bus = bus; |
b7b7d3cc SB |
64 | #else |
65 | #error "You must select CONFIG_PMIC_SPI or CONFIG_PMIC_I2C" | |
66 | #endif | |
b2e5add3 SB |
67 | |
68 | return 0; | |
69 | } |