diff options
Diffstat (limited to 'arch/arm/mach-s3c2410/usb-simtec.c')
| -rw-r--r-- | arch/arm/mach-s3c2410/usb-simtec.c | 132 |
1 files changed, 0 insertions, 132 deletions
diff --git a/arch/arm/mach-s3c2410/usb-simtec.c b/arch/arm/mach-s3c2410/usb-simtec.c deleted file mode 100644 index 29bd3d987bec..000000000000 --- a/arch/arm/mach-s3c2410/usb-simtec.c +++ /dev/null @@ -1,132 +0,0 @@ -/* linux/arch/arm/mach-s3c2410/usb-simtec.c - * - * Copyright 2004-2005 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * - * http://www.simtec.co.uk/products/EB2410ITX/ - * - * Simtec BAST and Thorcom VR1000 USB port support functions - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. -*/ - -#define DEBUG - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/interrupt.h> -#include <linux/list.h> -#include <linux/gpio.h> -#include <linux/timer.h> -#include <linux/init.h> -#include <linux/device.h> -#include <linux/io.h> - -#include <asm/mach/arch.h> -#include <asm/mach/map.h> -#include <asm/mach/irq.h> - -#include <mach/bast-map.h> -#include <mach/bast-irq.h> - -#include <mach/hardware.h> -#include <asm/irq.h> - -#include <plat/usb-control.h> -#include <plat/devs.h> - -#include "usb-simtec.h" - -/* control power and monitor over-current events on various Simtec - * designed boards. -*/ - -static unsigned int power_state[2]; - -static void -usb_simtec_powercontrol(int port, int to) -{ - pr_debug("usb_simtec_powercontrol(%d,%d)\n", port, to); - - power_state[port] = to; - - if (power_state[0] && power_state[1]) - gpio_set_value(S3C2410_GPB(4), 0); - else - gpio_set_value(S3C2410_GPB(4), 1); -} - -static irqreturn_t -usb_simtec_ocirq(int irq, void *pw) -{ - struct s3c2410_hcd_info *info = pw; - - if (gpio_get_value(S3C2410_GPG(10)) == 0) { - pr_debug("usb_simtec: over-current irq (oc detected)\n"); - s3c2410_usb_report_oc(info, 3); - } else { - pr_debug("usb_simtec: over-current irq (oc cleared)\n"); - s3c2410_usb_report_oc(info, 0); - } - - return IRQ_HANDLED; -} - -static void usb_simtec_enableoc(struct s3c2410_hcd_info *info, int on) -{ - int ret; - - if (on) { - ret = request_irq(IRQ_USBOC, usb_simtec_ocirq, - IRQF_DISABLED | IRQF_TRIGGER_RISING | - IRQF_TRIGGER_FALLING, - "USB Over-current", info); - if (ret != 0) { - printk(KERN_ERR "failed to request usb oc irq\n"); - } - } else { - free_irq(IRQ_USBOC, info); - } -} - -static struct s3c2410_hcd_info usb_simtec_info __initdata = { - .port[0] = { - .flags = S3C_HCDFLG_USED - }, - .port[1] = { - .flags = S3C_HCDFLG_USED - }, - - .power_control = usb_simtec_powercontrol, - .enable_oc = usb_simtec_enableoc, -}; - - -int usb_simtec_init(void) -{ - int ret; - - printk("USB Power Control, Copyright 2004 Simtec Electronics\n"); - - ret = gpio_request(S3C2410_GPB(4), "USB power control"); - if (ret < 0) { - pr_err("%s: failed to get GPB4\n", __func__); - return ret; - } - - ret = gpio_request(S3C2410_GPG(10), "USB overcurrent"); - if (ret < 0) { - pr_err("%s: failed to get GPG10\n", __func__); - gpio_free(S3C2410_GPB(4)); - return ret; - } - - /* turn power on */ - gpio_direction_output(S3C2410_GPB(4), 1); - gpio_direction_input(S3C2410_GPG(10)); - - s3c_ohci_set_platdata(&usb_simtec_info); - return 0; -} |