Shashank Mittal | b3be37f | 2012-01-16 22:59:49 -0800 | [diff] [blame] | 1 | /* Copyright (c) 2011-2012, Code Aurora Forum. All rights reserved. |
Amol Jadi | cd43ea0 | 2011-02-15 20:56:04 -0800 | [diff] [blame] | 2 | * |
| 3 | * Redistribution and use in source and binary forms, with or without |
| 4 | * modification, are permitted provided that the following conditions are |
| 5 | * met: |
| 6 | * * Redistributions of source code must retain the above copyright |
| 7 | * notice, this list of conditions and the following disclaimer. |
| 8 | * * Redistributions in binary form must reproduce the above |
| 9 | * copyright notice, this list of conditions and the following |
| 10 | * disclaimer in the documentation and/or other materials provided |
| 11 | * with the distribution. |
| 12 | * * Neither the name of Code Aurora Forum, Inc. nor the names of its |
| 13 | * contributors may be used to endorse or promote products derived |
| 14 | * from this software without specific prior written permission. |
| 15 | * |
| 16 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED |
| 17 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
| 18 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT |
| 19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS |
| 20 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR |
| 23 | * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
| 24 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE |
| 25 | * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN |
| 26 | * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
| 28 | |
| 29 | #include <debug.h> |
| 30 | #include <reg.h> |
| 31 | #include <platform/iomap.h> |
Amol Jadi | c52c8a3 | 2011-07-12 11:27:04 -0700 | [diff] [blame] | 32 | #include <platform/gpio.h> |
| 33 | #include <gsbi.h> |
Shashank Mittal | b3be37f | 2012-01-16 22:59:49 -0800 | [diff] [blame] | 34 | #include <dev/pm8921.h> |
| 35 | #include <sys/types.h> |
Amol Jadi | cd43ea0 | 2011-02-15 20:56:04 -0800 | [diff] [blame] | 36 | |
| 37 | void gpio_tlmm_config(uint32_t gpio, uint8_t func, |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 38 | uint8_t dir, uint8_t pull, |
| 39 | uint8_t drvstr, uint32_t enable) |
Amol Jadi | cd43ea0 | 2011-02-15 20:56:04 -0800 | [diff] [blame] | 40 | { |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 41 | unsigned int val = 0; |
| 42 | val |= pull; |
| 43 | val |= func << 2; |
| 44 | val |= drvstr << 6; |
| 45 | val |= enable << 9; |
| 46 | unsigned int *addr = (unsigned int *)GPIO_CONFIG_ADDR(gpio); |
| 47 | writel(val, addr); |
| 48 | return; |
Amol Jadi | cd43ea0 | 2011-02-15 20:56:04 -0800 | [diff] [blame] | 49 | } |
| 50 | |
| 51 | void gpio_set(uint32_t gpio, uint32_t dir) |
| 52 | { |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 53 | unsigned int *addr = (unsigned int *)GPIO_IN_OUT_ADDR(gpio); |
| 54 | writel(dir, addr); |
| 55 | return; |
Amol Jadi | cd43ea0 | 2011-02-15 20:56:04 -0800 | [diff] [blame] | 56 | } |
Amol Jadi | c52c8a3 | 2011-07-12 11:27:04 -0700 | [diff] [blame] | 57 | |
| 58 | /* Configure gpio for uart - based on gsbi id */ |
| 59 | void gpio_config_uart_dm(uint8_t id) |
| 60 | { |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 61 | switch (id) { |
Amol Jadi | 0c04df8 | 2011-10-14 17:40:21 -0700 | [diff] [blame] | 62 | |
| 63 | case GSBI_ID_3: |
| 64 | /* configure rx gpio */ |
| 65 | gpio_tlmm_config(15, 1, GPIO_INPUT, GPIO_NO_PULL, |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 66 | GPIO_8MA, GPIO_DISABLE); |
Amol Jadi | 0c04df8 | 2011-10-14 17:40:21 -0700 | [diff] [blame] | 67 | /* configure tx gpio */ |
| 68 | gpio_tlmm_config(14, 1, GPIO_OUTPUT, GPIO_NO_PULL, |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 69 | GPIO_8MA, GPIO_DISABLE); |
Amol Jadi | 0c04df8 | 2011-10-14 17:40:21 -0700 | [diff] [blame] | 70 | break; |
| 71 | |
Amol Jadi | c52c8a3 | 2011-07-12 11:27:04 -0700 | [diff] [blame] | 72 | case GSBI_ID_5: |
| 73 | /* configure rx gpio */ |
| 74 | gpio_tlmm_config(23, 1, GPIO_INPUT, GPIO_NO_PULL, |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 75 | GPIO_8MA, GPIO_DISABLE); |
Amol Jadi | c52c8a3 | 2011-07-12 11:27:04 -0700 | [diff] [blame] | 76 | /* configure tx gpio */ |
| 77 | gpio_tlmm_config(22, 1, GPIO_OUTPUT, GPIO_NO_PULL, |
Ajay Dudani | b01e506 | 2011-12-03 23:23:42 -0800 | [diff] [blame] | 78 | GPIO_8MA, GPIO_DISABLE); |
Amol Jadi | c52c8a3 | 2011-07-12 11:27:04 -0700 | [diff] [blame] | 79 | break; |
Amol Jadi | 0c04df8 | 2011-10-14 17:40:21 -0700 | [diff] [blame] | 80 | |
Amol Jadi | c52c8a3 | 2011-07-12 11:27:04 -0700 | [diff] [blame] | 81 | default: |
| 82 | ASSERT(0); |
| 83 | } |
| 84 | } |
Shashank Mittal | b3be37f | 2012-01-16 22:59:49 -0800 | [diff] [blame] | 85 | |
| 86 | struct pm8xxx_gpio_init { |
| 87 | uint32_t gpio; |
| 88 | struct pm8921_gpio config; |
| 89 | }; |
| 90 | |
| 91 | #define PM8XXX_GPIO_INIT(_gpio, _dir, _buf, _val, _pull, _vin, _out_strength, \ |
| 92 | _func, _inv, _disable) \ |
| 93 | { \ |
| 94 | .gpio = _gpio, \ |
| 95 | .config = { \ |
| 96 | .direction = _dir, \ |
| 97 | .output_buffer = _buf, \ |
| 98 | .output_value = _val, \ |
| 99 | .pull = _pull, \ |
| 100 | .vin_sel = _vin, \ |
| 101 | .out_strength = _out_strength, \ |
| 102 | .function = _func, \ |
| 103 | .inv_int_pol = _inv, \ |
| 104 | .disable_pin = _disable, \ |
| 105 | } \ |
| 106 | } |
| 107 | |
| 108 | #define PM8XXX_GPIO_OUTPUT(_gpio, _val) \ |
| 109 | PM8XXX_GPIO_INIT(_gpio, PM_GPIO_DIR_OUT, 0, _val, \ |
| 110 | PM_GPIO_PULL_NO, 2, \ |
| 111 | PM_GPIO_STRENGTH_HIGH, \ |
| 112 | PM_GPIO_FUNC_NORMAL, 1, 0) |
| 113 | |
| 114 | |
| 115 | #define PM8XXX_GPIO_INPUT(_gpio, _pull) \ |
| 116 | PM8XXX_GPIO_INIT(_gpio, PM_GPIO_DIR_IN, 0, 0, \ |
| 117 | _pull, 2, \ |
| 118 | PM_GPIO_STRENGTH_NO, \ |
| 119 | PM_GPIO_FUNC_NORMAL, 1, 0) |
| 120 | |
| 121 | /* Initial pm8038 GPIO configurations */ |
| 122 | static struct pm8xxx_gpio_init pm8038_keypad_gpios[] = { |
| 123 | /* keys GPIOs */ |
| 124 | PM8XXX_GPIO_INPUT(PM_GPIO(3), PM_GPIO_PULL_UP_1_5), |
| 125 | PM8XXX_GPIO_INPUT(PM_GPIO(8), PM_GPIO_PULL_UP_1_5), |
| 126 | PM8XXX_GPIO_INPUT(PM_GPIO(10), PM_GPIO_PULL_UP_1_5), |
| 127 | PM8XXX_GPIO_INPUT(PM_GPIO(11), PM_GPIO_PULL_UP_1_5), |
| 128 | }; |
| 129 | |
| 130 | static struct pm8xxx_gpio_init pm8921_keypad_gpios[] = { |
| 131 | /* keys GPIOs */ |
| 132 | PM8XXX_GPIO_INPUT(PM_GPIO(1), PM_GPIO_PULL_UP_31_5), |
| 133 | PM8XXX_GPIO_INPUT(PM_GPIO(2), PM_GPIO_PULL_UP_31_5), |
| 134 | PM8XXX_GPIO_INPUT(PM_GPIO(3), PM_GPIO_PULL_UP_31_5), |
| 135 | PM8XXX_GPIO_INPUT(PM_GPIO(4), PM_GPIO_PULL_UP_31_5), |
| 136 | PM8XXX_GPIO_INPUT(PM_GPIO(5), PM_GPIO_PULL_UP_31_5), |
| 137 | PM8XXX_GPIO_OUTPUT(PM_GPIO(9), 0), |
| 138 | }; |
| 139 | |
Amol Jadi | 7607167 | 2012-02-03 12:19:36 -0800 | [diff] [blame^] | 140 | /* pm8921 GPIO configuration for APQ8064 keypad */ |
| 141 | static struct pm8xxx_gpio_init pm8921_keypad_gpios_apq[] = { |
| 142 | /* keys GPIOs */ |
| 143 | PM8XXX_GPIO_INPUT(PM_GPIO(35), PM_GPIO_PULL_UP_31_5), |
| 144 | PM8XXX_GPIO_INPUT(PM_GPIO(38), PM_GPIO_PULL_UP_31_5), |
| 145 | PM8XXX_GPIO_OUTPUT(PM_GPIO(9), 0), |
| 146 | }; |
| 147 | |
Shashank Mittal | b3be37f | 2012-01-16 22:59:49 -0800 | [diff] [blame] | 148 | void msm8960_keypad_gpio_init() |
| 149 | { |
| 150 | int i = 0; |
| 151 | int num = 0; |
| 152 | |
| 153 | num = ARRAY_SIZE(pm8921_keypad_gpios); |
| 154 | |
| 155 | for(i=0; i < num; i++) |
| 156 | { |
| 157 | pm8921_gpio_config(pm8921_keypad_gpios[i].gpio, |
| 158 | &(pm8921_keypad_gpios[i].config)); |
| 159 | } |
| 160 | } |
| 161 | |
| 162 | void msm8930_keypad_gpio_init() |
| 163 | { |
| 164 | int i = 0; |
| 165 | int num = 0; |
| 166 | |
| 167 | num = ARRAY_SIZE(pm8038_keypad_gpios); |
| 168 | |
| 169 | for(i=0; i < num; i++) |
| 170 | { |
| 171 | pm8921_gpio_config(pm8038_keypad_gpios[i].gpio, |
| 172 | &(pm8038_keypad_gpios[i].config)); |
| 173 | } |
| 174 | } |
Amol Jadi | 7607167 | 2012-02-03 12:19:36 -0800 | [diff] [blame^] | 175 | |
| 176 | void apq8064_keypad_gpio_init() |
| 177 | { |
| 178 | int i = 0; |
| 179 | int num = 0; |
| 180 | |
| 181 | num = ARRAY_SIZE(pm8921_keypad_gpios_apq); |
| 182 | |
| 183 | for(i=0; i < num; i++) |
| 184 | { |
| 185 | pm8921_gpio_config(pm8921_keypad_gpios_apq[i].gpio, |
| 186 | &(pm8921_keypad_gpios_apq[i].config)); |
| 187 | } |
| 188 | } |
| 189 | |