aboutsummaryrefslogtreecommitdiff
path: root/arch/arm/mach-imx/generic.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/mach-imx/generic.c')
-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 05f1739ee12..00000000000
--- a/arch/arm/mach-imx/generic.c
+++ /dev/null
@@ -1,271 +0,0 @@
-/*
- * arch/arm/mach-imx/generic.c
- *
- * author: Sascha Hauer
- * Created: april 20th, 2004
- * Copyright: Synertronixx GmbH
- *
- * Common code for i.MX machines
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-#include <linux/platform_device.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-
-#include <asm/errno.h>
-#include <mach/hardware.h>
-#include <mach/imx-regs.h>
-
-#include <asm/mach/map.h>
-#include <mach/mmc.h>
-#include <mach/gpio.h>
-
-unsigned long imx_gpio_alloc_map[(GPIO_PORT_MAX + 1) * 32 / BITS_PER_LONG];
-
-void imx_gpio_mode(int gpio_mode)
-{
- unsigned int pin = gpio_mode & GPIO_PIN_MASK;
- unsigned int port = (gpio_mode & GPIO_PORT_MASK) >> GPIO_PORT_SHIFT;
- unsigned int ocr = (gpio_mode & GPIO_OCR_MASK) >> GPIO_OCR_SHIFT;
- unsigned int tmp;
-
- /* Pullup enable */
- if(gpio_mode & GPIO_PUEN)
- PUEN(port) |= (1<<pin);
- else
- PUEN(port) &= ~(1<<pin);
-
- /* Data direction */
- if(gpio_mode & GPIO_OUT)
- DDIR(port) |= 1<<pin;
- else
- DDIR(port) &= ~(1<<pin);
-
- /* Primary / alternate function */
- if(gpio_mode & GPIO_AF)
- GPR(port) |= (1<<pin);
- else
- GPR(port) &= ~(1<<pin);
-
- /* use as gpio? */
- if(gpio_mode & GPIO_GIUS)
- GIUS(port) |= (1<<pin);
- else
- GIUS(port) &= ~(1<<pin);
-
- /* Output / input configuration */
- /* FIXME: I'm not very sure about OCR and ICONF, someone
- * should have a look over it
- */
- if(pin<16) {
- tmp = OCR1(port);
- tmp &= ~( 3<<(pin*2));
- tmp |= (ocr << (pin*2));
- OCR1(port) = tmp;
-
- ICONFA1(port) &= ~( 3<<(pin*2));
- ICONFA1(port) |= ((gpio_mode >> GPIO_AOUT_SHIFT) & 3) << (pin * 2);
- ICONFB1(port) &= ~( 3<<(pin*2));
- ICONFB1(port) |= ((gpio_mode >> GPIO_BOUT_SHIFT) & 3) << (pin * 2);
- } else {
- tmp = OCR2(port);
- tmp &= ~( 3<<((pin-16)*2));
- tmp |= (ocr << ((pin-16)*2));
- OCR2(port) = tmp;
-
- ICONFA2(port) &= ~( 3<<((pin-16)*2));
- ICONFA2(port) |= ((gpio_mode >> GPIO_AOUT_SHIFT) & 3) << ((pin-16) * 2);
- ICONFB2(port) &= ~( 3<<((pin-16)*2));
- ICONFB2(port) |= ((gpio_mode >> GPIO_BOUT_SHIFT) & 3) << ((pin-16) * 2);
- }
-}
-
-EXPORT_SYMBOL(imx_gpio_mode);
-
-int imx_gpio_request(unsigned gpio, const char *label)
-{
- if(gpio >= (GPIO_PORT_MAX + 1) * 32) {
- printk(KERN_ERR "imx_gpio: Attempt to request nonexistent GPIO %d for \"%s\"\n",
- gpio, label ? label : "?");
- return -EINVAL;
- }
-
- if(test_and_set_bit(gpio, imx_gpio_alloc_map)) {
- printk(KERN_ERR "imx_gpio: GPIO %d already used. Allocation for \"%s\" failed\n",
- gpio, label ? label : "?");
- return -EBUSY;
- }
-
- return 0;
-}
-
-EXPORT_SYMBOL(imx_gpio_request);
-
-void imx_gpio_free(unsigned gpio)
-{
- if(gpio >= (GPIO_PORT_MAX + 1) * 32)
- return;
-
- clear_bit(gpio, imx_gpio_alloc_map);
-}
-
-EXPORT_SYMBOL(imx_gpio_free);
-
-int imx_gpio_direction_input(unsigned gpio)
-{
- imx_gpio_mode(gpio | GPIO_IN | GPIO_GIUS | GPIO_DR);
- return 0;
-}
-
-EXPORT_SYMBOL(imx_gpio_direction_input);
-
-int imx_gpio_direction_output(unsigned gpio, int value)
-{
- imx_gpio_set_value(gpio, value);
- imx_gpio_mode(gpio | GPIO_OUT | GPIO_GIUS | GPIO_DR);
- return 0;
-}
-
-EXPORT_SYMBOL(imx_gpio_direction_output);
-
-int imx_gpio_setup_multiple_pins(const int *pin_list, unsigned count,
- int alloc_mode, const char *label)
-{
- const int *p = pin_list;
- int i;
- unsigned gpio;
- unsigned mode;
-
- for (i = 0; i < count; i++) {
- gpio = *p & (GPIO_PIN_MASK | GPIO_PORT_MASK);
- mode = *p & ~(GPIO_PIN_MASK | GPIO_PORT_MASK);
-
- if (gpio >= (GPIO_PORT_MAX + 1) * 32)
- goto setup_error;
-
- if (alloc_mode & IMX_GPIO_ALLOC_MODE_RELEASE)
- imx_gpio_free(gpio);
- else if (!(alloc_mode & IMX_GPIO_ALLOC_MODE_NO_ALLOC))
- if (imx_gpio_request(gpio, label))
- if (!(alloc_mode & IMX_GPIO_ALLOC_MODE_TRY_ALLOC))
- goto setup_error;
-
- if (!(alloc_mode & (IMX_GPIO_ALLOC_MODE_ALLOC_ONLY |
- IMX_GPIO_ALLOC_MODE_RELEASE)))
- imx_gpio_mode(gpio | mode);
-
- p++;
- }
- return 0;
-
-setup_error:
- if(alloc_mode & (IMX_GPIO_ALLOC_MODE_NO_ALLOC |
- IMX_GPIO_ALLOC_MODE_TRY_ALLOC))
- return -EINVAL;
-
- while (p != pin_list) {
- p--;
- gpio = *p & (GPIO_PIN_MASK | GPIO_PORT_MASK);
- imx_gpio_free(gpio);
- }
-
- return -EINVAL;
-}
-
-EXPORT_SYMBOL(imx_gpio_setup_multiple_pins);
-
-void __imx_gpio_set_value(unsigned gpio, int value)
-{
- imx_gpio_set_value_inline(gpio, value);
-}
-
-EXPORT_SYMBOL(__imx_gpio_set_value);
-
-int imx_gpio_to_irq(unsigned gpio)
-{
- return IRQ_GPIOA(0) + gpio;
-}
-
-EXPORT_SYMBOL(imx_gpio_to_irq);
-
-int imx_irq_to_gpio(unsigned irq)
-{
- if (irq < IRQ_GPIOA(0))
- return -EINVAL;
- return irq - IRQ_GPIOA(0);
-}
-
-EXPORT_SYMBOL(imx_irq_to_gpio);
-
-static struct resource imx_mmc_resources[] = {
- [0] = {
- .start = 0x00214000,
- .end = 0x002140FF,
- .flags = IORESOURCE_MEM,
- },
- [1] = {
- .start = (SDHC_INT),
- .end = (SDHC_INT),
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static u64 imxmmmc_dmamask = 0xffffffffUL;
-
-static struct platform_device imx_mmc_device = {
- .name = "imx-mmc",
- .id = 0,
- .dev = {
- .dma_mask = &imxmmmc_dmamask,
- .coherent_dma_mask = 0xffffffff,
- },
- .num_resources = ARRAY_SIZE(imx_mmc_resources),
- .resource = imx_mmc_resources,
-};
-
-void __init imx_set_mmc_info(struct imxmmc_platform_data *info)
-{
- imx_mmc_device.dev.platform_data = info;
-}
-
-static struct platform_device *devices[] __initdata = {
- &imx_mmc_device,
-};
-
-static struct map_desc imx_io_desc[] __initdata = {
- {
- .virtual = IMX_IO_BASE,
- .pfn = __phys_to_pfn(IMX_IO_PHYS),
- .length = IMX_IO_SIZE,
- .type = MT_DEVICE
- }
-};
-
-void __init
-imx_map_io(void)
-{
- iotable_init(imx_io_desc, ARRAY_SIZE(imx_io_desc));
-}
-
-static int __init imx_init(void)
-{
- return platform_add_devices(devices, ARRAY_SIZE(devices));
-}
-
-subsys_initcall(imx_init);