diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-08 11:12:43 -0500 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-08 11:12:43 -0500 |
commit | 79c9601c2e0dbbe69895d302de4d19f3a31fbd30 (patch) | |
tree | 78d4be2df851b2b4106adcfd736622a90cecf9e9 /arch/arm/mach-u300 | |
parent | 41440ffe21f29bdb985cab76b2d0b06d83e63b19 (diff) | |
parent | 3d14b5beba35250c548d3851a2b84fce742d8311 (diff) |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (272 commits)
Fix soc_common PCMCIA configuration
ARM: 5827/1: SA1100: h3100/h3600: emit messages on failed gpio_request
ARM: 5826/1: SA1100: h3100/h3600: always build htc-egpio driver
ARM: 5825/1: SA1100: h3600: update defconfig
ARM: 5824/1: SA1100: reuse h3600 PCMCIA driver on h3100
ARM: 5823/1: SA1100: h3100/h3600: add support for gpio-keys
ARM: 5822/1: SA1100: h3100/h3600: clean up #includes
ARM: 5821/1: SA1100: h3100/h3600: revise copyright boilerplates
ARM: 5820/1: SA1100: h3100/h3600: split h3600.c
ARM: 5819/1: SA1100: h3100/h3600: merge h3600.h and h3600_gpio.h into h3xxx.h
ARM: 5818/1: SA1100: h3100/h3600: drop old GPIO definitions
ARM: 5817/1: SA1100: h3100/h3600: configure all unused gpios as inputs
ARM: 5816/1: SA1100: h3600: remove IRQ_GPIO_* definitions
ARM: 5815/1: SA1100: h3100/h3600: remove now unused assign_h3600_egpio handlers
ARM: 5814/1: SA1100: h3100/h3600: convert all users of assign_h3600_egpio to gpiolib
ARM: 5813/1: SA1100: h3100/h3600: add htc-egpio driver
ARM: 5812/1: SA1100: h3100/h3600: separate machine-specific LCD helpers
ARM: 5811/2: pcmcia: convert sa1100_h3600 driver to gpiolib
ARM: 5799/1: SA1100: h3600: stop setting direction for LCD pins
ARM: 5798/1: SA1100: h3600: remove unused cruft from h3600.h
...
Diffstat (limited to 'arch/arm/mach-u300')
-rw-r--r-- | arch/arm/mach-u300/Makefile | 1 | ||||
-rw-r--r-- | arch/arm/mach-u300/i2c.c | 249 | ||||
-rw-r--r-- | arch/arm/mach-u300/mmc.c | 64 | ||||
-rw-r--r-- | arch/arm/mach-u300/regulator.c | 88 |
4 files changed, 342 insertions, 60 deletions
diff --git a/arch/arm/mach-u300/Makefile b/arch/arm/mach-u300/Makefile index 885b5c027c1e..fab46fe9a71f 100644 --- a/arch/arm/mach-u300/Makefile +++ b/arch/arm/mach-u300/Makefile | |||
@@ -12,3 +12,4 @@ obj-$(CONFIG_MMC) += mmc.o | |||
12 | obj-$(CONFIG_SPI_PL022) += spi.o | 12 | obj-$(CONFIG_SPI_PL022) += spi.o |
13 | obj-$(CONFIG_MACH_U300_SPIDUMMY) += dummyspichip.o | 13 | obj-$(CONFIG_MACH_U300_SPIDUMMY) += dummyspichip.o |
14 | obj-$(CONFIG_I2C_STU300) += i2c.o | 14 | obj-$(CONFIG_I2C_STU300) += i2c.o |
15 | obj-$(CONFIG_REGULATOR_AB3100) += regulator.o | ||
diff --git a/arch/arm/mach-u300/i2c.c b/arch/arm/mach-u300/i2c.c index 10be1f888b27..c73ed06b6065 100644 --- a/arch/arm/mach-u300/i2c.c +++ b/arch/arm/mach-u300/i2c.c | |||
@@ -9,13 +9,257 @@ | |||
9 | */ | 9 | */ |
10 | #include <linux/kernel.h> | 10 | #include <linux/kernel.h> |
11 | #include <linux/i2c.h> | 11 | #include <linux/i2c.h> |
12 | #include <linux/mfd/ab3100.h> | ||
13 | #include <linux/regulator/machine.h> | ||
14 | #include <linux/amba/bus.h> | ||
12 | #include <mach/irqs.h> | 15 | #include <mach/irqs.h> |
13 | 16 | ||
17 | /* | ||
18 | * Initial settings of ab3100 registers. | ||
19 | * Common for below LDO regulator settings are that | ||
20 | * bit 7-5 controls voltage. Bit 4 turns regulator ON(1) or OFF(0). | ||
21 | * Bit 3-2 controls sleep enable and bit 1-0 controls sleep mode. | ||
22 | */ | ||
23 | |||
24 | /* LDO_A 0x16: 2.75V, ON, SLEEP_A, SLEEP OFF GND */ | ||
25 | #define LDO_A_SETTING 0x16 | ||
26 | /* LDO_C 0x10: 2.65V, ON, SLEEP_A or B, SLEEP full power */ | ||
27 | #define LDO_C_SETTING 0x10 | ||
28 | /* LDO_D 0x10: 2.65V, ON, sleep mode not used */ | ||
29 | #define LDO_D_SETTING 0x10 | ||
30 | /* LDO_E 0x10: 1.8V, ON, SLEEP_A or B, SLEEP full power */ | ||
31 | #define LDO_E_SETTING 0x10 | ||
32 | /* LDO_E SLEEP 0x00: 1.8V, not used, SLEEP_A or B, not used */ | ||
33 | #define LDO_E_SLEEP_SETTING 0x00 | ||
34 | /* LDO_F 0xD0: 2.5V, ON, SLEEP_A or B, SLEEP full power */ | ||
35 | #define LDO_F_SETTING 0xD0 | ||
36 | /* LDO_G 0x00: 2.85V, OFF, SLEEP_A or B, SLEEP full power */ | ||
37 | #define LDO_G_SETTING 0x00 | ||
38 | /* LDO_H 0x18: 2.75V, ON, SLEEP_B, SLEEP full power */ | ||
39 | #define LDO_H_SETTING 0x18 | ||
40 | /* LDO_K 0x00: 2.75V, OFF, SLEEP_A or B, SLEEP full power */ | ||
41 | #define LDO_K_SETTING 0x00 | ||
42 | /* LDO_EXT 0x00: Voltage not set, OFF, not used, not used */ | ||
43 | #define LDO_EXT_SETTING 0x00 | ||
44 | /* BUCK 0x7D: 1.2V, ON, SLEEP_A and B, SLEEP low power */ | ||
45 | #define BUCK_SETTING 0x7D | ||
46 | /* BUCK SLEEP 0xAC: 1.05V, Not used, SLEEP_A and B, Not used */ | ||
47 | #define BUCK_SLEEP_SETTING 0xAC | ||
48 | |||
49 | static struct regulator_consumer_supply supply_ldo_c[] = { | ||
50 | { | ||
51 | .dev_name = "ab3100-codec", | ||
52 | .supply = "vaudio", /* Powers the codec */ | ||
53 | }, | ||
54 | }; | ||
55 | |||
56 | /* | ||
57 | * This one needs to be a supply so we can turn it off | ||
58 | * in order to shut down the system. | ||
59 | */ | ||
60 | static struct regulator_consumer_supply supply_ldo_d[] = { | ||
61 | { | ||
62 | .dev = NULL, | ||
63 | .supply = "vana15", /* Powers the SoC (CPU etc) */ | ||
64 | }, | ||
65 | }; | ||
66 | |||
67 | static struct regulator_consumer_supply supply_ldo_g[] = { | ||
68 | { | ||
69 | .dev_name = "mmci", | ||
70 | .supply = "vmmc", /* Powers MMC/SD card */ | ||
71 | }, | ||
72 | }; | ||
73 | |||
74 | static struct regulator_consumer_supply supply_ldo_h[] = { | ||
75 | { | ||
76 | .dev_name = "xgam_pdi", | ||
77 | .supply = "vdisp", /* Powers camera, display etc */ | ||
78 | }, | ||
79 | }; | ||
80 | |||
81 | static struct regulator_consumer_supply supply_ldo_k[] = { | ||
82 | { | ||
83 | .dev_name = "irda", | ||
84 | .supply = "vir", /* Power IrDA */ | ||
85 | }, | ||
86 | }; | ||
87 | |||
88 | /* | ||
89 | * This is a placeholder for whoever wish to use the | ||
90 | * external power. | ||
91 | */ | ||
92 | static struct regulator_consumer_supply supply_ldo_ext[] = { | ||
93 | { | ||
94 | .dev = NULL, | ||
95 | .supply = "vext", /* External power */ | ||
96 | }, | ||
97 | }; | ||
98 | |||
99 | /* Preset (hardware defined) voltages for these regulators */ | ||
100 | #define LDO_A_VOLTAGE 2750000 | ||
101 | #define LDO_C_VOLTAGE 2650000 | ||
102 | #define LDO_D_VOLTAGE 2650000 | ||
103 | |||
104 | static struct ab3100_platform_data ab3100_plf_data = { | ||
105 | .reg_constraints = { | ||
106 | /* LDO A routing and constraints */ | ||
107 | { | ||
108 | .constraints = { | ||
109 | .name = "vrad", | ||
110 | .min_uV = LDO_A_VOLTAGE, | ||
111 | .max_uV = LDO_A_VOLTAGE, | ||
112 | .valid_modes_mask = REGULATOR_MODE_NORMAL, | ||
113 | .always_on = 1, | ||
114 | .boot_on = 1, | ||
115 | }, | ||
116 | }, | ||
117 | /* LDO C routing and constraints */ | ||
118 | { | ||
119 | .constraints = { | ||
120 | .min_uV = LDO_C_VOLTAGE, | ||
121 | .max_uV = LDO_C_VOLTAGE, | ||
122 | .valid_modes_mask = REGULATOR_MODE_NORMAL, | ||
123 | }, | ||
124 | .num_consumer_supplies = ARRAY_SIZE(supply_ldo_c), | ||
125 | .consumer_supplies = supply_ldo_c, | ||
126 | }, | ||
127 | /* LDO D routing and constraints */ | ||
128 | { | ||
129 | .constraints = { | ||
130 | .min_uV = LDO_D_VOLTAGE, | ||
131 | .max_uV = LDO_D_VOLTAGE, | ||
132 | .valid_modes_mask = REGULATOR_MODE_NORMAL, | ||
133 | .valid_ops_mask = REGULATOR_CHANGE_STATUS, | ||
134 | /* | ||
135 | * Actually this is boot_on but we need | ||
136 | * to reference count it externally to | ||
137 | * be able to shut down the system. | ||
138 | */ | ||
139 | }, | ||
140 | .num_consumer_supplies = ARRAY_SIZE(supply_ldo_d), | ||
141 | .consumer_supplies = supply_ldo_d, | ||
142 | }, | ||
143 | /* LDO E routing and constraints */ | ||
144 | { | ||
145 | .constraints = { | ||
146 | .name = "vio", | ||
147 | .min_uV = 1800000, | ||
148 | .max_uV = 1800000, | ||
149 | .valid_modes_mask = REGULATOR_MODE_NORMAL, | ||
150 | .valid_ops_mask = | ||
151 | REGULATOR_CHANGE_VOLTAGE | | ||
152 | REGULATOR_CHANGE_STATUS, | ||
153 | .always_on = 1, | ||
154 | .boot_on = 1, | ||
155 | }, | ||
156 | }, | ||
157 | /* LDO F routing and constraints */ | ||
158 | { | ||
159 | .constraints = { | ||
160 | .name = "vana25", | ||
161 | .min_uV = 2500000, | ||
162 | .max_uV = 2500000, | ||
163 | .valid_modes_mask = REGULATOR_MODE_NORMAL, | ||
164 | .valid_ops_mask = | ||
165 | REGULATOR_CHANGE_VOLTAGE | | ||
166 | REGULATOR_CHANGE_STATUS, | ||
167 | .always_on = 1, | ||
168 | .boot_on = 1, | ||
169 | }, | ||
170 | }, | ||
171 | /* LDO G routing and constraints */ | ||
172 | { | ||
173 | .constraints = { | ||
174 | .min_uV = 1500000, | ||
175 | .max_uV = 2850000, | ||
176 | .valid_modes_mask = REGULATOR_MODE_NORMAL, | ||
177 | .valid_ops_mask = | ||
178 | REGULATOR_CHANGE_VOLTAGE | | ||
179 | REGULATOR_CHANGE_STATUS, | ||
180 | }, | ||
181 | .num_consumer_supplies = ARRAY_SIZE(supply_ldo_g), | ||
182 | .consumer_supplies = supply_ldo_g, | ||
183 | }, | ||
184 | /* LDO H routing and constraints */ | ||
185 | { | ||
186 | .constraints = { | ||
187 | .min_uV = 1200000, | ||
188 | .max_uV = 2750000, | ||
189 | .valid_modes_mask = REGULATOR_MODE_NORMAL, | ||
190 | .valid_ops_mask = | ||
191 | REGULATOR_CHANGE_VOLTAGE | | ||
192 | REGULATOR_CHANGE_STATUS, | ||
193 | }, | ||
194 | .num_consumer_supplies = ARRAY_SIZE(supply_ldo_h), | ||
195 | .consumer_supplies = supply_ldo_h, | ||
196 | }, | ||
197 | /* LDO K routing and constraints */ | ||
198 | { | ||
199 | .constraints = { | ||
200 | .min_uV = 1800000, | ||
201 | .max_uV = 2750000, | ||
202 | .valid_modes_mask = REGULATOR_MODE_NORMAL, | ||
203 | .valid_ops_mask = | ||
204 | REGULATOR_CHANGE_VOLTAGE | | ||
205 | REGULATOR_CHANGE_STATUS, | ||
206 | }, | ||
207 | .num_consumer_supplies = ARRAY_SIZE(supply_ldo_k), | ||
208 | .consumer_supplies = supply_ldo_k, | ||
209 | }, | ||
210 | /* External regulator interface. No fixed voltage specified. | ||
211 | * If we knew the voltage of the external regulator and it | ||
212 | * was connected on the board, we could add the (fixed) | ||
213 | * voltage for it here. | ||
214 | */ | ||
215 | { | ||
216 | .constraints = { | ||
217 | .min_uV = 0, | ||
218 | .max_uV = 0, | ||
219 | .valid_modes_mask = REGULATOR_MODE_NORMAL, | ||
220 | .valid_ops_mask = | ||
221 | REGULATOR_CHANGE_STATUS, | ||
222 | }, | ||
223 | .num_consumer_supplies = ARRAY_SIZE(supply_ldo_ext), | ||
224 | .consumer_supplies = supply_ldo_ext, | ||
225 | }, | ||
226 | /* Buck converter routing and constraints */ | ||
227 | { | ||
228 | .constraints = { | ||
229 | .name = "vcore", | ||
230 | .min_uV = 1200000, | ||
231 | .max_uV = 1800000, | ||
232 | .valid_modes_mask = REGULATOR_MODE_NORMAL, | ||
233 | .valid_ops_mask = | ||
234 | REGULATOR_CHANGE_VOLTAGE | | ||
235 | REGULATOR_CHANGE_STATUS, | ||
236 | .always_on = 1, | ||
237 | .boot_on = 1, | ||
238 | }, | ||
239 | }, | ||
240 | }, | ||
241 | .reg_initvals = { | ||
242 | LDO_A_SETTING, | ||
243 | LDO_C_SETTING, | ||
244 | LDO_E_SETTING, | ||
245 | LDO_E_SLEEP_SETTING, | ||
246 | LDO_F_SETTING, | ||
247 | LDO_G_SETTING, | ||
248 | LDO_H_SETTING, | ||
249 | LDO_K_SETTING, | ||
250 | LDO_EXT_SETTING, | ||
251 | BUCK_SETTING, | ||
252 | BUCK_SLEEP_SETTING, | ||
253 | LDO_D_SETTING, | ||
254 | }, | ||
255 | }; | ||
256 | |||
14 | static struct i2c_board_info __initdata bus0_i2c_board_info[] = { | 257 | static struct i2c_board_info __initdata bus0_i2c_board_info[] = { |
15 | { | 258 | { |
16 | .type = "ab3100", | 259 | .type = "ab3100", |
17 | .addr = 0x48, | 260 | .addr = 0x48, |
18 | .irq = IRQ_U300_IRQ0_EXT, | 261 | .irq = IRQ_U300_IRQ0_EXT, |
262 | .platform_data = &ab3100_plf_data, | ||
19 | }, | 263 | }, |
20 | }; | 264 | }; |
21 | 265 | ||
@@ -38,6 +282,11 @@ void __init u300_i2c_register_board_devices(void) | |||
38 | { | 282 | { |
39 | i2c_register_board_info(0, bus0_i2c_board_info, | 283 | i2c_register_board_info(0, bus0_i2c_board_info, |
40 | ARRAY_SIZE(bus0_i2c_board_info)); | 284 | ARRAY_SIZE(bus0_i2c_board_info)); |
285 | /* | ||
286 | * This makes the core shut down all unused regulators | ||
287 | * after all the initcalls have completed. | ||
288 | */ | ||
289 | regulator_has_full_constraints(); | ||
41 | i2c_register_board_info(1, bus1_i2c_board_info, | 290 | i2c_register_board_info(1, bus1_i2c_board_info, |
42 | ARRAY_SIZE(bus1_i2c_board_info)); | 291 | ARRAY_SIZE(bus1_i2c_board_info)); |
43 | } | 292 | } |
diff --git a/arch/arm/mach-u300/mmc.c b/arch/arm/mach-u300/mmc.c index 7b6b016786bb..109f5a6e71c7 100644 --- a/arch/arm/mach-u300/mmc.c +++ b/arch/arm/mach-u300/mmc.c | |||
@@ -40,64 +40,6 @@ static unsigned int mmc_status(struct device *dev) | |||
40 | return mmci_card->mmc_inserted; | 40 | return mmci_card->mmc_inserted; |
41 | } | 41 | } |
42 | 42 | ||
43 | /* | ||
44 | * Here follows a large chunk of code which will only be enabled if you | ||
45 | * have both the AB3100 chip mounted and the MMC subsystem activated. | ||
46 | */ | ||
47 | |||
48 | static u32 mmc_translate_vdd(struct device *dev, unsigned int voltage) | ||
49 | { | ||
50 | int v; | ||
51 | |||
52 | /* | ||
53 | * MMC Spec: | ||
54 | * bit 7: 1.70 - 1.95V | ||
55 | * bit 8 - 14: 2.0 - 2.6V | ||
56 | * bit 15 - 23: 2.7 - 3.6V | ||
57 | * | ||
58 | * ab3100 voltages: | ||
59 | * 000 - 2.85V | ||
60 | * 001 - 2.75V | ||
61 | * 010 - 1.8V | ||
62 | * 011 - 1.5V | ||
63 | */ | ||
64 | switch (voltage) { | ||
65 | case 8: | ||
66 | v = 3; | ||
67 | break; | ||
68 | case 9: | ||
69 | case 10: | ||
70 | case 11: | ||
71 | case 12: | ||
72 | case 13: | ||
73 | case 14: | ||
74 | case 15: | ||
75 | v = 1; | ||
76 | break; | ||
77 | case 16: | ||
78 | v = 1; | ||
79 | break; | ||
80 | case 17: | ||
81 | case 18: | ||
82 | case 19: | ||
83 | case 20: | ||
84 | case 21: | ||
85 | case 22: | ||
86 | case 23: | ||
87 | case 24: | ||
88 | v = 0; | ||
89 | break; | ||
90 | default: | ||
91 | v = 0; | ||
92 | break; | ||
93 | } | ||
94 | |||
95 | /* PL180 voltage register bits */ | ||
96 | return v << 2; | ||
97 | } | ||
98 | |||
99 | |||
100 | |||
101 | static int mmci_callback(void *data) | 43 | static int mmci_callback(void *data) |
102 | { | 44 | { |
103 | struct mmci_card_event *mmci_card = data; | 45 | struct mmci_card_event *mmci_card = data; |
@@ -154,9 +96,11 @@ int __devinit mmc_init(struct amba_device *adev) | |||
154 | if (!mmci_card) | 96 | if (!mmci_card) |
155 | return -ENOMEM; | 97 | return -ENOMEM; |
156 | 98 | ||
99 | /* | ||
100 | * Do not set ocr_mask or voltage translation function, | ||
101 | * we have a regulator we can control instead. | ||
102 | */ | ||
157 | /* Nominally 2.85V on our platform */ | 103 | /* Nominally 2.85V on our platform */ |
158 | mmci_card->mmc0_plat_data.ocr_mask = MMC_VDD_28_29; | ||
159 | mmci_card->mmc0_plat_data.translate_vdd = mmc_translate_vdd; | ||
160 | mmci_card->mmc0_plat_data.status = mmc_status; | 104 | mmci_card->mmc0_plat_data.status = mmc_status; |
161 | mmci_card->mmc0_plat_data.gpio_wp = -1; | 105 | mmci_card->mmc0_plat_data.gpio_wp = -1; |
162 | mmci_card->mmc0_plat_data.gpio_cd = -1; | 106 | mmci_card->mmc0_plat_data.gpio_cd = -1; |
diff --git a/arch/arm/mach-u300/regulator.c b/arch/arm/mach-u300/regulator.c new file mode 100644 index 000000000000..9c53f01c62eb --- /dev/null +++ b/arch/arm/mach-u300/regulator.c | |||
@@ -0,0 +1,88 @@ | |||
1 | /* | ||
2 | * arch/arm/mach-u300/regulator.c | ||
3 | * | ||
4 | * Copyright (C) 2009 ST-Ericsson AB | ||
5 | * License terms: GNU General Public License (GPL) version 2 | ||
6 | * Handle board-bound regulators and board power not related | ||
7 | * to any devices. | ||
8 | * Author: Linus Walleij <linus.walleij@stericsson.com> | ||
9 | */ | ||
10 | #include <linux/device.h> | ||
11 | #include <linux/signal.h> | ||
12 | #include <linux/err.h> | ||
13 | #include <linux/regulator/consumer.h> | ||
14 | /* Those are just for writing in syscon */ | ||
15 | #include <linux/io.h> | ||
16 | #include <mach/hardware.h> | ||
17 | #include <mach/syscon.h> | ||
18 | |||
19 | /* | ||
20 | * Regulators that power the board and chip and which are | ||
21 | * not copuled to specific drivers are hogged in these | ||
22 | * instances. | ||
23 | */ | ||
24 | static struct regulator *main_power_15; | ||
25 | |||
26 | /* | ||
27 | * This function is used from pm.h to shut down the system by | ||
28 | * resetting all regulators in turn and then disable regulator | ||
29 | * LDO D (main power). | ||
30 | */ | ||
31 | void u300_pm_poweroff(void) | ||
32 | { | ||
33 | sigset_t old, all; | ||
34 | |||
35 | sigfillset(&all); | ||
36 | if (!sigprocmask(SIG_BLOCK, &all, &old)) { | ||
37 | /* Disable LDO D to shut down the system */ | ||
38 | if (main_power_15) | ||
39 | regulator_disable(main_power_15); | ||
40 | else | ||
41 | pr_err("regulator not available to shut down system\n"); | ||
42 | (void) sigprocmask(SIG_SETMASK, &old, NULL); | ||
43 | } | ||
44 | return; | ||
45 | } | ||
46 | |||
47 | /* | ||
48 | * Hog the regulators needed to power up the board. | ||
49 | */ | ||
50 | static int __init u300_init_boardpower(void) | ||
51 | { | ||
52 | int err; | ||
53 | u32 val; | ||
54 | |||
55 | pr_info("U300: setting up board power\n"); | ||
56 | main_power_15 = regulator_get(NULL, "vana15"); | ||
57 | if (IS_ERR(main_power_15)) { | ||
58 | pr_err("could not get vana15"); | ||
59 | return PTR_ERR(main_power_15); | ||
60 | } | ||
61 | err = regulator_enable(main_power_15); | ||
62 | if (err) { | ||
63 | pr_err("could not enable vana15\n"); | ||
64 | return err; | ||
65 | } | ||
66 | |||
67 | /* | ||
68 | * On U300 a special system controller register pulls up the DC | ||
69 | * until the vana15 (LDO D) regulator comes up. At this point, all | ||
70 | * regulators are set and we do not need power control via | ||
71 | * DC ON anymore. This function will likely be moved whenever | ||
72 | * the rest of the U300 power management is implemented. | ||
73 | */ | ||
74 | pr_info("U300: disable system controller pull-up\n"); | ||
75 | val = readw(U300_SYSCON_VBASE + U300_SYSCON_PMCR); | ||
76 | val &= ~U300_SYSCON_PMCR_DCON_ENABLE; | ||
77 | writew(val, U300_SYSCON_VBASE + U300_SYSCON_PMCR); | ||
78 | |||
79 | /* Register globally exported PM poweroff hook */ | ||
80 | pm_power_off = u300_pm_poweroff; | ||
81 | |||
82 | return 0; | ||
83 | } | ||
84 | |||
85 | /* | ||
86 | * So at module init time we hog the regulator! | ||
87 | */ | ||
88 | module_init(u300_init_boardpower); | ||