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-rw-r--r--arch/arm/mach-imx/generic.c271
1 files changed, 0 insertions, 271 deletions
diff --git a/arch/arm/mach-imx/generic.c b/arch/arm/mach-imx/generic.c
deleted file mode 100644
index 05f1739ee127..000000000000
--- a/arch/arm/mach-imx/generic.c
+++ /dev/null
@@ -1,271 +0,0 @@
1/*
2 * arch/arm/mach-imx/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#include <linux/platform_device.h>
26#include <linux/init.h>
27#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/string.h>
30
31#include <asm/errno.h>
32#include <mach/hardware.h>
33#include <mach/imx-regs.h>
34
35#include <asm/mach/map.h>
36#include <mach/mmc.h>
37#include <mach/gpio.h>
38
39unsigned long imx_gpio_alloc_map[(GPIO_PORT_MAX + 1) * 32 / BITS_PER_LONG];
40
41void imx_gpio_mode(int gpio_mode)
42{
43 unsigned int pin = gpio_mode & GPIO_PIN_MASK;
44 unsigned int port = (gpio_mode & GPIO_PORT_MASK) >> GPIO_PORT_SHIFT;
45 unsigned int ocr = (gpio_mode & GPIO_OCR_MASK) >> GPIO_OCR_SHIFT;
46 unsigned int tmp;
47
48 /* Pullup enable */
49 if(gpio_mode & GPIO_PUEN)
50 PUEN(port) |= (1<<pin);
51 else
52 PUEN(port) &= ~(1<<pin);
53
54 /* Data direction */
55 if(gpio_mode & GPIO_OUT)
56 DDIR(port) |= 1<<pin;
57 else
58 DDIR(port) &= ~(1<<pin);
59
60 /* Primary / alternate function */
61 if(gpio_mode & GPIO_AF)
62 GPR(port) |= (1<<pin);
63 else
64 GPR(port) &= ~(1<<pin);
65
66 /* use as gpio? */
67 if(gpio_mode & GPIO_GIUS)
68 GIUS(port) |= (1<<pin);
69 else
70 GIUS(port) &= ~(1<<pin);
71
72 /* Output / input configuration */
73 /* FIXME: I'm not very sure about OCR and ICONF, someone
74 * should have a look over it
75 */
76 if(pin<16) {
77 tmp = OCR1(port);
78 tmp &= ~( 3<<(pin*2));
79 tmp |= (ocr << (pin*2));
80 OCR1(port) = tmp;
81
82 ICONFA1(port) &= ~( 3<<(pin*2));
83 ICONFA1(port) |= ((gpio_mode >> GPIO_AOUT_SHIFT) & 3) << (pin * 2);
84 ICONFB1(port) &= ~( 3<<(pin*2));
85 ICONFB1(port) |= ((gpio_mode >> GPIO_BOUT_SHIFT) & 3) << (pin * 2);
86 } else {
87 tmp = OCR2(port);
88 tmp &= ~( 3<<((pin-16)*2));
89 tmp |= (ocr << ((pin-16)*2));
90 OCR2(port) = tmp;
91
92 ICONFA2(port) &= ~( 3<<((pin-16)*2));
93 ICONFA2(port) |= ((gpio_mode >> GPIO_AOUT_SHIFT) & 3) << ((pin-16) * 2);
94 ICONFB2(port) &= ~( 3<<((pin-16)*2));
95 ICONFB2(port) |= ((gpio_mode >> GPIO_BOUT_SHIFT) & 3) << ((pin-16) * 2);
96 }
97}
98
99EXPORT_SYMBOL(imx_gpio_mode);
100
101int imx_gpio_request(unsigned gpio, const char *label)
102{
103 if(gpio >= (GPIO_PORT_MAX + 1) * 32) {
104 printk(KERN_ERR "imx_gpio: Attempt to request nonexistent GPIO %d for \"%s\"\n",
105 gpio, label ? label : "?");
106 return -EINVAL;
107 }
108
109 if(test_and_set_bit(gpio, imx_gpio_alloc_map)) {
110 printk(KERN_ERR "imx_gpio: GPIO %d already used. Allocation for \"%s\" failed\n",
111 gpio, label ? label : "?");
112 return -EBUSY;
113 }
114
115 return 0;
116}
117
118EXPORT_SYMBOL(imx_gpio_request);
119
120void imx_gpio_free(unsigned gpio)
121{
122 if(gpio >= (GPIO_PORT_MAX + 1) * 32)
123 return;
124
125 clear_bit(gpio, imx_gpio_alloc_map);
126}
127
128EXPORT_SYMBOL(imx_gpio_free);
129
130int imx_gpio_direction_input(unsigned gpio)
131{
132 imx_gpio_mode(gpio | GPIO_IN | GPIO_GIUS | GPIO_DR);
133 return 0;
134}
135
136EXPORT_SYMBOL(imx_gpio_direction_input);
137
138int imx_gpio_direction_output(unsigned gpio, int value)
139{
140 imx_gpio_set_value(gpio, value);
141 imx_gpio_mode(gpio | GPIO_OUT | GPIO_GIUS | GPIO_DR);
142 return 0;
143}
144
145EXPORT_SYMBOL(imx_gpio_direction_output);
146
147int imx_gpio_setup_multiple_pins(const int *pin_list, unsigned count,
148 int alloc_mode, const char *label)
149{
150 const int *p = pin_list;
151 int i;
152 unsigned gpio;
153 unsigned mode;
154
155 for (i = 0; i < count; i++) {
156 gpio = *p & (GPIO_PIN_MASK | GPIO_PORT_MASK);
157 mode = *p & ~(GPIO_PIN_MASK | GPIO_PORT_MASK);
158
159 if (gpio >= (GPIO_PORT_MAX + 1) * 32)
160 goto setup_error;
161
162 if (alloc_mode & IMX_GPIO_ALLOC_MODE_RELEASE)
163 imx_gpio_free(gpio);
164 else if (!(alloc_mode & IMX_GPIO_ALLOC_MODE_NO_ALLOC))
165 if (imx_gpio_request(gpio, label))
166 if (!(alloc_mode & IMX_GPIO_ALLOC_MODE_TRY_ALLOC))
167 goto setup_error;
168
169 if (!(alloc_mode & (IMX_GPIO_ALLOC_MODE_ALLOC_ONLY |
170 IMX_GPIO_ALLOC_MODE_RELEASE)))
171 imx_gpio_mode(gpio | mode);
172
173 p++;
174 }
175 return 0;
176
177setup_error:
178 if(alloc_mode & (IMX_GPIO_ALLOC_MODE_NO_ALLOC |
179 IMX_GPIO_ALLOC_MODE_TRY_ALLOC))
180 return -EINVAL;
181
182 while (p != pin_list) {
183 p--;
184 gpio = *p & (GPIO_PIN_MASK | GPIO_PORT_MASK);
185 imx_gpio_free(gpio);
186 }
187
188 return -EINVAL;
189}
190
191EXPORT_SYMBOL(imx_gpio_setup_multiple_pins);
192
193void __imx_gpio_set_value(unsigned gpio, int value)
194{
195 imx_gpio_set_value_inline(gpio, value);
196}
197
198EXPORT_SYMBOL(__imx_gpio_set_value);
199
200int imx_gpio_to_irq(unsigned gpio)
201{
202 return IRQ_GPIOA(0) + gpio;
203}
204
205EXPORT_SYMBOL(imx_gpio_to_irq);
206
207int imx_irq_to_gpio(unsigned irq)
208{
209 if (irq < IRQ_GPIOA(0))
210 return -EINVAL;
211 return irq - IRQ_GPIOA(0);
212}
213
214EXPORT_SYMBOL(imx_irq_to_gpio);
215
216static struct resource imx_mmc_resources[] = {
217 [0] = {
218 .start = 0x00214000,
219 .end = 0x002140FF,
220 .flags = IORESOURCE_MEM,
221 },
222 [1] = {
223 .start = (SDHC_INT),
224 .end = (SDHC_INT),
225 .flags = IORESOURCE_IRQ,
226 },
227};
228
229static u64 imxmmmc_dmamask = 0xffffffffUL;
230
231static struct platform_device imx_mmc_device = {
232 .name = "imx-mmc",
233 .id = 0,
234 .dev = {
235 .dma_mask = &imxmmmc_dmamask,
236 .coherent_dma_mask = 0xffffffff,
237 },
238 .num_resources = ARRAY_SIZE(imx_mmc_resources),
239 .resource = imx_mmc_resources,
240};
241
242void __init imx_set_mmc_info(struct imxmmc_platform_data *info)
243{
244 imx_mmc_device.dev.platform_data = info;
245}
246
247static struct platform_device *devices[] __initdata = {
248 &imx_mmc_device,
249};
250
251static struct map_desc imx_io_desc[] __initdata = {
252 {
253 .virtual = IMX_IO_BASE,
254 .pfn = __phys_to_pfn(IMX_IO_PHYS),
255 .length = IMX_IO_SIZE,
256 .type = MT_DEVICE
257 }
258};
259
260void __init
261imx_map_io(void)
262{
263 iotable_init(imx_io_desc, ARRAY_SIZE(imx_io_desc));
264}
265
266static int __init imx_init(void)
267{
268 return platform_add_devices(devices, ARRAY_SIZE(devices));
269}
270
271subsys_initcall(imx_init);
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-13 18:53:20 -0500