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21144298 | 1 | /* |
cb199102 | 2 | * (C) Copyright 2012-2013 |
21144298 S |
3 | * Texas Instruments, <www.ti.com> |
4 | * | |
1a459660 | 5 | * SPDX-License-Identifier: GPL-2.0+ |
21144298 S |
6 | */ |
7 | #include <config.h> | |
cb199102 | 8 | #include <palmas.h> |
21144298 | 9 | |
12733881 | 10 | void palmas_init_settings(void) |
21144298 | 11 | { |
e9090fa4 LP |
12 | #ifdef CONFIG_PALMAS_SMPS7_FPWM |
13 | int err; | |
14 | /* | |
15 | * Set SMPS7 (1.8 V I/O supply on platforms with TWL6035/37) to | |
16 | * forced PWM mode. This reduces noise (but affects efficiency). | |
17 | */ | |
18 | u8 val = SMPS_MODE_SLP_FPWM | SMPS_MODE_ACT_FPWM; | |
19 | err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS7_CTRL, val); | |
20 | if (err) | |
21 | printf("palmas: could not force PWM for SMPS7: err = %d\n", | |
22 | err); | |
23 | #endif | |
21144298 | 24 | } |
dd23e59d | 25 | |
384bcae0 | 26 | int palmas_mmc1_poweron_ldo(void) |
dd23e59d B |
27 | { |
28 | u8 val = 0; | |
29 | ||
d11ac4b5 | 30 | #if defined(CONFIG_DRA7XX) || defined(CONFIG_AM57XX) |
e9090fa4 LP |
31 | /* |
32 | * Currently valid for the dra7xx_evm board: | |
33 | * Set TPS659038 LDO1 to 3.0 V | |
34 | */ | |
35 | val = LDO_VOLT_3V0; | |
36 | if (palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_VOLTAGE, val)) { | |
37 | printf("tps65903x: could not set LDO1 voltage.\n"); | |
38 | return 1; | |
39 | } | |
40 | /* TURN ON LDO1 */ | |
41 | val = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; | |
42 | if (palmas_i2c_write_u8(TPS65903X_CHIP_P1, LDO1_CTRL, val)) { | |
43 | printf("tps65903x: could not turn on LDO1.\n"); | |
ce851c8b VS |
44 | return 1; |
45 | } | |
e9090fa4 LP |
46 | return 0; |
47 | #else | |
48 | /* | |
49 | * We assume that this is a OMAP543X + TWL603X board: | |
50 | * Set TWL6035/37 LDO9 to 3.0 V | |
51 | */ | |
52 | val = LDO_VOLT_3V0; | |
53 | return twl603x_mmc1_set_ldo9(val); | |
54 | #endif | |
55 | } | |
dd23e59d | 56 | |
e9090fa4 LP |
57 | /* |
58 | * On some OMAP5 + TWL603X hardware the SD card socket and LDO9_IN are | |
59 | * powered by an external 3.3 V regulator, while the output of LDO9 | |
60 | * supplies VDDS_SDCARD for the OMAP5 interface only. This implies that | |
61 | * LDO9 could be set to 'bypass' mode when required (e.g. for 3.3 V cards). | |
62 | */ | |
63 | int twl603x_mmc1_set_ldo9(u8 vsel) | |
64 | { | |
65 | u8 cval = 0, vval = 0; /* Off by default */ | |
66 | int err; | |
ce851c8b | 67 | |
e9090fa4 LP |
68 | if (vsel) { |
69 | /* Turn on */ | |
70 | if (vsel > LDO_VOLT_3V3) { | |
71 | /* Put LDO9 in bypass */ | |
72 | cval = LDO9_BYP_EN | RSC_MODE_SLEEP | RSC_MODE_ACTIVE; | |
73 | vval = LDO_VOLT_3V3; | |
74 | } else { | |
75 | cval = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; | |
76 | vval = vsel & 0x3f; | |
77 | } | |
78 | } | |
79 | err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_VOLTAGE, vval); | |
80 | if (err) { | |
81 | printf("twl603x: could not set LDO9 %s: err = %d\n", | |
82 | vsel > LDO_VOLT_3V3 ? "bypass" : "voltage", err); | |
83 | return err; | |
ce851c8b | 84 | } |
e9090fa4 LP |
85 | err = palmas_i2c_write_u8(TWL603X_CHIP_P1, LDO9_CTRL, cval); |
86 | if (err) | |
87 | printf("twl603x: could not turn %s LDO9: err = %d\n", | |
88 | cval ? "on" : "off", err); | |
89 | return err; | |
90 | } | |
ce851c8b | 91 | |
e9090fa4 LP |
92 | #ifdef CONFIG_PALMAS_AUDPWR |
93 | /* | |
94 | * Turn audio codec power and 32 kHz clock on/off. Use for | |
95 | * testing OMAP543X + TWL603X + TWL604X boards only. | |
96 | */ | |
97 | int twl603x_audio_power(u8 on) | |
98 | { | |
99 | u8 cval = 0, vval = 0, c32k = 0; | |
100 | int err; | |
101 | ||
102 | if (on) { | |
103 | vval = SMPS_VOLT_2V1; | |
104 | cval = SMPS_MODE_SLP_AUTO | SMPS_MODE_ACT_AUTO; | |
105 | c32k = RSC_MODE_SLEEP | RSC_MODE_ACTIVE; | |
106 | } | |
107 | /* Set SMPS9 to 2.1 V (for TWL604x), or to 0 (off) */ | |
108 | err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_VOLTAGE, vval); | |
109 | if (err) { | |
110 | printf("twl603x: could not set SMPS9 voltage: err = %d\n", | |
111 | err); | |
112 | return err; | |
113 | } | |
114 | /* Turn on or off SMPS9 */ | |
115 | err = palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS9_CTRL, cval); | |
116 | if (err) { | |
117 | printf("twl603x: could not turn SMPS9 %s: err = %d\n", | |
118 | cval ? "on" : "off", err); | |
119 | return err; | |
120 | } | |
121 | /* Output 32 kHz clock on or off */ | |
122 | err = palmas_i2c_write_u8(TWL603X_CHIP_P1, CLK32KGAUDIO_CTRL, c32k); | |
123 | if (err) | |
124 | printf("twl603x: could not turn CLK32KGAUDIO %s: err = %d\n", | |
125 | c32k ? "on" : "off", err); | |
126 | return err; | |
127 | } | |
128 | #endif | |
129 | ||
1bd435bc DM |
130 | #ifdef CONFIG_PALMAS_USB_SS_PWR |
131 | /** | |
132 | * @brief palmas_enable_ss_ldo - Configure EVM board specific configurations | |
133 | * for the USB Super speed SMPS10 regulator. | |
134 | * | |
135 | * @return 0 | |
136 | */ | |
137 | int palmas_enable_ss_ldo(void) | |
138 | { | |
139 | /* Enable smps10 regulator */ | |
140 | return palmas_i2c_write_u8(TWL603X_CHIP_P1, SMPS10_CTRL, | |
141 | SMPS10_MODE_ACTIVE_D); | |
142 | } | |
143 | #endif | |
144 | ||
e9090fa4 LP |
145 | /* |
146 | * Enable/disable back-up battery (or super cap) charging on TWL6035/37. | |
147 | * Please use defined BB_xxx values. | |
148 | */ | |
149 | int twl603x_enable_bb_charge(u8 bb_fields) | |
150 | { | |
151 | u8 val = bb_fields & 0x0f; | |
152 | int err; | |
153 | ||
154 | val |= (VRTC_EN_SLP | VRTC_EN_OFF | VRTC_PWEN); | |
155 | err = palmas_i2c_write_u8(TWL603X_CHIP_P1, BB_VRTC_CTRL, val); | |
156 | if (err) | |
157 | printf("twl603x: could not set BB_VRTC_CTRL to 0x%02x: err = %d\n", | |
158 | val, err); | |
159 | return err; | |
dd23e59d | 160 | } |