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gerrit.devboardsforandroid.linaro.org / platform / external / u-boot / 4048a5c519a86eab2805f4f07fe9f5c6c8a1fe91 / . / drivers / power / pmic / pmic_hi6553.c
blob: 6443c9ffc98c21697330d0b543764d1a19457fb9 [file] [log] [blame]
Tom Rini83d290c2018-05-06 17:58:06 -0400[diff] [blame]1// SPDX-License-Identifier: GPL-2.0+
Peter Griffin242b2f02015-07-30 18:55:21 +0100[diff] [blame]2/*
3 * Copyright (C) 2015 Linaro
4 * Peter Griffin <peter.griffin@linaro.org>
Peter Griffin242b2f02015-07-30 18:55:21 +0100[diff] [blame]5 */
6#include <asm/io.h>
7#include <common.h>
8#include <power/pmic.h>
9#include <power/max8997_muic.h>
10#include <power/hi6553_pmic.h>
11#include <errno.h>
12
13u8 *pmussi_base;
14
15uint8_t hi6553_readb(u32 offset)
16{
17 return readb(pmussi_base + (offset << 2));
18}
19
20void hi6553_writeb(u32 offset, uint8_t value)
21{
22 writeb(value, pmussi_base + (offset << 2));
23}
24
25int pmic_reg_write(struct pmic *p, u32 reg, u32 val)
26{
27 if (check_reg(p, reg))
Jaehoon Chung505cf472016-12-15 20:49:50 +0900[diff] [blame]28 return -EINVAL;
Peter Griffin242b2f02015-07-30 18:55:21 +0100[diff] [blame]29
30 hi6553_writeb(reg, (uint8_t)val);
31
32 return 0;
33}
34
35int pmic_reg_read(struct pmic *p, u32 reg, u32 *val)
36{
37 if (check_reg(p, reg))
Jaehoon Chung505cf472016-12-15 20:49:50 +0900[diff] [blame]38 return -EINVAL;
Peter Griffin242b2f02015-07-30 18:55:21 +0100[diff] [blame]39
40 *val = (u32)hi6553_readb(reg);
41
42 return 0;
43}
44
45static void hi6553_init(void)
46{
47 int data;
48
49 hi6553_writeb(HI6553_PERI_EN_MARK, 0x1e);
50 hi6553_writeb(HI6553_NP_REG_ADJ1, 0);
51 data = HI6553_DISABLE6_XO_CLK_CONN | HI6553_DISABLE6_XO_CLK_NFC |
52 HI6553_DISABLE6_XO_CLK_RF1 | HI6553_DISABLE6_XO_CLK_RF2;
53 hi6553_writeb(HI6553_DISABLE6_XO_CLK, data);
54
55 /* configure BUCK0 & BUCK1 */
56 hi6553_writeb(HI6553_BUCK01_CTRL2, 0x5e);
57 hi6553_writeb(HI6553_BUCK0_CTRL7, 0x10);
58 hi6553_writeb(HI6553_BUCK1_CTRL7, 0x10);
59 hi6553_writeb(HI6553_BUCK0_CTRL5, 0x1e);
60 hi6553_writeb(HI6553_BUCK1_CTRL5, 0x1e);
61 hi6553_writeb(HI6553_BUCK0_CTRL1, 0xfc);
62 hi6553_writeb(HI6553_BUCK1_CTRL1, 0xfc);
63
64 /* configure BUCK2 */
65 hi6553_writeb(HI6553_BUCK2_REG1, 0x4f);
66 hi6553_writeb(HI6553_BUCK2_REG5, 0x99);
67 hi6553_writeb(HI6553_BUCK2_REG6, 0x45);
68 mdelay(1);
69 hi6553_writeb(HI6553_VSET_BUCK2_ADJ, 0x22);
70 mdelay(1);
71
72 /* configure BUCK3 */
73 hi6553_writeb(HI6553_BUCK3_REG3, 0x02);
74 hi6553_writeb(HI6553_BUCK3_REG5, 0x99);
75 hi6553_writeb(HI6553_BUCK3_REG6, 0x41);
76 hi6553_writeb(HI6553_VSET_BUCK3_ADJ, 0x02);
77 mdelay(1);
78
79 /* configure BUCK4 */
80 hi6553_writeb(HI6553_BUCK4_REG2, 0x9a);
81 hi6553_writeb(HI6553_BUCK4_REG5, 0x99);
82 hi6553_writeb(HI6553_BUCK4_REG6, 0x45);
83
84 /* configure LDO20 */
85 hi6553_writeb(HI6553_LDO20_REG_ADJ, 0x50);
86
87 hi6553_writeb(HI6553_NP_REG_CHG, 0x0f);
88 hi6553_writeb(HI6553_CLK_TOP0, 0x06);
89 hi6553_writeb(HI6553_CLK_TOP3, 0xc0);
90 hi6553_writeb(HI6553_CLK_TOP4, 0x00);
91
92 /* configure LDO7 & LDO10 for SD slot */
93 data = hi6553_readb(HI6553_LDO7_REG_ADJ);
94 data = (data & 0xf8) | 0x2;
95 hi6553_writeb(HI6553_LDO7_REG_ADJ, data);
96 mdelay(5);
97 /* enable LDO7 */
98 hi6553_writeb(HI6553_ENABLE2_LDO1_8, 1 << 6);
99 mdelay(5);
100 data = hi6553_readb(HI6553_LDO10_REG_ADJ);
101 data = (data & 0xf8) | 0x5;
102 hi6553_writeb(HI6553_LDO10_REG_ADJ, data);
103 mdelay(5);
104 /* enable LDO10 */
105 hi6553_writeb(HI6553_ENABLE3_LDO9_16, 1 << 1);
106 mdelay(5);
107
108 /* select 32.764KHz */
109 hi6553_writeb(HI6553_CLK19M2_600_586_EN, 0x01);
110}
111
112int power_hi6553_init(u8 *base)
113{
114 static const char name[] = "HI6553 PMIC";
115 struct pmic *p = pmic_alloc();
116
117 if (!p) {
118 printf("%s: POWER allocation error!\n", __func__);
119 return -ENOMEM;
120 }
121
122 p->name = name;
123 p->interface = PMIC_NONE;
124 p->number_of_regs = 44;
125 pmussi_base = base;
126
127 hi6553_init();
128
129 puts("HI6553 PMIC init\n");
130
131 return 0;
132}