diff options
Diffstat (limited to 'arch/arm/plat-mxc/iomux-mx1-mx2.c')
| -rw-r--r-- | arch/arm/plat-mxc/iomux-mx1-mx2.c | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/arch/arm/plat-mxc/iomux-mx1-mx2.c b/arch/arm/plat-mxc/iomux-mx1-mx2.c deleted file mode 100644 index a37163ce280b..000000000000 --- a/arch/arm/plat-mxc/iomux-mx1-mx2.c +++ /dev/null | |||
| @@ -1,157 +0,0 @@ | |||
| 1 | /* | ||
| 2 | * arch/arm/mach-mxc/generic.c | ||
| 3 | * | ||
| 4 | * author: Sascha Hauer | ||
| 5 | * Created: april 20th, 2004 | ||
| 6 | * Copyright: Synertronixx GmbH | ||
| 7 | * | ||
| 8 | * Common code for i.MX machines | ||
| 9 | * | ||
| 10 | * This program is free software; you can redistribute it and/or modify | ||
| 11 | * it under the terms of the GNU General Public License as published by | ||
| 12 | * the Free Software Foundation; either version 2 of the License, or | ||
| 13 | * (at your option) any later version. | ||
| 14 | * | ||
| 15 | * This program is distributed in the hope that it will be useful, | ||
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 18 | * GNU General Public License for more details. | ||
| 19 | * | ||
| 20 | * You should have received a copy of the GNU General Public License | ||
| 21 | * along with this program; if not, write to the Free Software | ||
| 22 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
| 23 | * | ||
| 24 | */ | ||
| 25 | |||
| 26 | #include <linux/errno.h> | ||
| 27 | #include <linux/init.h> | ||
| 28 | #include <linux/kernel.h> | ||
| 29 | #include <linux/module.h> | ||
| 30 | #include <linux/string.h> | ||
| 31 | #include <linux/gpio.h> | ||
| 32 | |||
| 33 | #include <mach/hardware.h> | ||
| 34 | #include <asm/mach/map.h> | ||
| 35 | #include <mach/iomux.h> | ||
| 36 | |||
| 37 | void mxc_gpio_mode(int gpio_mode) | ||
| 38 | { | ||
| 39 | unsigned int pin = gpio_mode & GPIO_PIN_MASK; | ||
| 40 | unsigned int port = (gpio_mode & GPIO_PORT_MASK) >> GPIO_PORT_SHIFT; | ||
| 41 | unsigned int ocr = (gpio_mode & GPIO_OCR_MASK) >> GPIO_OCR_SHIFT; | ||
| 42 | unsigned int tmp; | ||
| 43 | |||
| 44 | /* Pullup enable */ | ||
| 45 | tmp = __raw_readl(VA_GPIO_BASE + MXC_PUEN(port)); | ||
| 46 | if (gpio_mode & GPIO_PUEN) | ||
| 47 | tmp |= (1 << pin); | ||
| 48 | else | ||
| 49 | tmp &= ~(1 << pin); | ||
| 50 | __raw_writel(tmp, VA_GPIO_BASE + MXC_PUEN(port)); | ||
| 51 | |||
| 52 | /* Data direction */ | ||
| 53 | tmp = __raw_readl(VA_GPIO_BASE + MXC_DDIR(port)); | ||
| 54 | if (gpio_mode & GPIO_OUT) | ||
| 55 | tmp |= 1 << pin; | ||
| 56 | else | ||
| 57 | tmp &= ~(1 << pin); | ||
| 58 | __raw_writel(tmp, VA_GPIO_BASE + MXC_DDIR(port)); | ||
| 59 | |||
| 60 | /* Primary / alternate function */ | ||
| 61 | tmp = __raw_readl(VA_GPIO_BASE + MXC_GPR(port)); | ||
| 62 | if (gpio_mode & GPIO_AF) | ||
| 63 | tmp |= (1 << pin); | ||
| 64 | else | ||
| 65 | tmp &= ~(1 << pin); | ||
| 66 | __raw_writel(tmp, VA_GPIO_BASE + MXC_GPR(port)); | ||
| 67 | |||
| 68 | /* use as gpio? */ | ||
| 69 | tmp = __raw_readl(VA_GPIO_BASE + MXC_GIUS(port)); | ||
| 70 | if (gpio_mode & (GPIO_PF | GPIO_AF)) | ||
| 71 | tmp &= ~(1 << pin); | ||
| 72 | else | ||
| 73 | tmp |= (1 << pin); | ||
| 74 | __raw_writel(tmp, VA_GPIO_BASE + MXC_GIUS(port)); | ||
| 75 | |||
| 76 | if (pin < 16) { | ||
| 77 | tmp = __raw_readl(VA_GPIO_BASE + MXC_OCR1(port)); | ||
| 78 | tmp &= ~(3 << (pin * 2)); | ||
| 79 | tmp |= (ocr << (pin * 2)); | ||
| 80 | __raw_writel(tmp, VA_GPIO_BASE + MXC_OCR1(port)); | ||
| 81 | |||
| 82 | tmp = __raw_readl(VA_GPIO_BASE + MXC_ICONFA1(port)); | ||
| 83 | tmp &= ~(3 << (pin * 2)); | ||
| 84 | tmp |= ((gpio_mode >> GPIO_AOUT_SHIFT) & 3) << (pin * 2); | ||
| 85 | __raw_writel(tmp, VA_GPIO_BASE + MXC_ICONFA1(port)); | ||
| 86 | |||
| 87 | tmp = __raw_readl(VA_GPIO_BASE + MXC_ICONFB1(port)); | ||
| 88 | tmp &= ~(3 << (pin * 2)); | ||
| 89 | tmp |= ((gpio_mode >> GPIO_BOUT_SHIFT) & 3) << (pin * 2); | ||
| 90 | __raw_writel(tmp, VA_GPIO_BASE + MXC_ICONFB1(port)); | ||
| 91 | } else { | ||
| 92 | pin -= 16; | ||
| 93 | |||
| 94 | tmp = __raw_readl(VA_GPIO_BASE + MXC_OCR2(port)); | ||
| 95 | tmp &= ~(3 << (pin * 2)); | ||
| 96 | tmp |= (ocr << (pin * 2)); | ||
| 97 | __raw_writel(tmp, VA_GPIO_BASE + MXC_OCR2(port)); | ||
| 98 | |||
| 99 | tmp = __raw_readl(VA_GPIO_BASE + MXC_ICONFA2(port)); | ||
| 100 | tmp &= ~(3 << (pin * 2)); | ||
| 101 | tmp |= ((gpio_mode >> GPIO_AOUT_SHIFT) & 3) << (pin * 2); | ||
| 102 | __raw_writel(tmp, VA_GPIO_BASE + MXC_ICONFA2(port)); | ||
| 103 | |||
| 104 | tmp = __raw_readl(VA_GPIO_BASE + MXC_ICONFB2(port)); | ||
| 105 | tmp &= ~(3 << (pin * 2)); | ||
| 106 | tmp |= ((gpio_mode >> GPIO_BOUT_SHIFT) & 3) << (pin * 2); | ||
| 107 | __raw_writel(tmp, VA_GPIO_BASE + MXC_ICONFB2(port)); | ||
| 108 | } | ||
| 109 | } | ||
| 110 | EXPORT_SYMBOL(mxc_gpio_mode); | ||
| 111 | |||
| 112 | int mxc_gpio_setup_multiple_pins(const int *pin_list, unsigned count, | ||
| 113 | const char *label) | ||
| 114 | { | ||
| 115 | const int *p = pin_list; | ||
| 116 | int i; | ||
| 117 | unsigned gpio; | ||
| 118 | unsigned mode; | ||
| 119 | int ret = -EINVAL; | ||
| 120 | |||
| 121 | for (i = 0; i < count; i++) { | ||
| 122 | gpio = *p & (GPIO_PIN_MASK | GPIO_PORT_MASK); | ||
| 123 | mode = *p & ~(GPIO_PIN_MASK | GPIO_PORT_MASK); | ||
| 124 | |||
| 125 | if (gpio >= (GPIO_PORT_MAX + 1) * 32) | ||
| 126 | goto setup_error; | ||
| 127 | |||
| 128 | ret = gpio_request(gpio, label); | ||
| 129 | if (ret) | ||
| 130 | goto setup_error; | ||
| 131 | |||
| 132 | mxc_gpio_mode(gpio | mode); | ||
| 133 | |||
| 134 | p++; | ||
| 135 | } | ||
| 136 | return 0; | ||
| 137 | |||
| 138 | setup_error: | ||
| 139 | mxc_gpio_release_multiple_pins(pin_list, i); | ||
| 140 | return ret; | ||
| 141 | } | ||
| 142 | EXPORT_SYMBOL(mxc_gpio_setup_multiple_pins); | ||
| 143 | |||
| 144 | void mxc_gpio_release_multiple_pins(const int *pin_list, int count) | ||
| 145 | { | ||
| 146 | const int *p = pin_list; | ||
| 147 | int i; | ||
| 148 | |||
| 149 | for (i = 0; i < count; i++) { | ||
| 150 | unsigned gpio = *p & (GPIO_PIN_MASK | GPIO_PORT_MASK); | ||
| 151 | gpio_free(gpio); | ||
| 152 | p++; | ||
| 153 | } | ||
| 154 | |||
| 155 | } | ||
| 156 | EXPORT_SYMBOL(mxc_gpio_release_multiple_pins); | ||
| 157 | |||
