diff options
Diffstat (limited to 'target/linux/ifxmips/files/drivers')
| -rw-r--r-- | target/linux/ifxmips/files/drivers/char/ifxmips_gpio.c | 407 | ||||
| -rw-r--r-- | target/linux/ifxmips/files/drivers/char/ifxmips_mei_core.c | 22 |
2 files changed, 11 insertions, 418 deletions
diff --git a/target/linux/ifxmips/files/drivers/char/ifxmips_gpio.c b/target/linux/ifxmips/files/drivers/char/ifxmips_gpio.c deleted file mode 100644 index 8beb0b8200..0000000000 --- a/target/linux/ifxmips/files/drivers/char/ifxmips_gpio.c +++ /dev/null @@ -1,407 +0,0 @@ -/* - * 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. - * - * Copyright (C) 2005 infineon - * Copyright (C) 2007 John Crispin <blogic@openwrt.org> - * - */ - -#include <linux/module.h> -#include <linux/types.h> -#include <linux/errno.h> -#include <linux/proc_fs.h> -#include <linux/init.h> -#include <linux/ioctl.h> -#include <linux/timer.h> -#include <linux/module.h> -#include <linux/timer.h> -#include <linux/interrupt.h> -#include <linux/kobject.h> -#include <linux/workqueue.h> -#include <linux/skbuff.h> -#include <linux/netlink.h> -#include <linux/platform_device.h> -#include <net/sock.h> -#include <asm/uaccess.h> -#include <asm/semaphore.h> -#include <asm/uaccess.h> -#include <asm/ifxmips/ifxmips.h> -#include <asm/ifxmips/ifxmips_ioctl.h> - -#define MAX_PORTS 2 -#define PINS_PER_PORT 16 - -#define DRVNAME "ifxmips_gpio" - -static unsigned int ifxmips_gpio_major = 0; - -#ifdef CONFIG_IFXMIPS_GPIO_RST_BTN -#define IFXMIPS_RST_PIN 15 -#define IFXMIPS_RST_PORT 1 - -static struct timer_list rst_button_timer; - -extern struct sock *uevent_sock; -extern u64 uevent_next_seqnum(void); -static unsigned long seen; -static int pressed = 0; - -struct event_t { - struct work_struct wq; - int set; - unsigned long jiffies; -}; -#endif - -/* TODO do we need this ? */ -static struct semaphore port_sem; - -/* TODO do we really need this ? return in a define is forbidden by coding style */ -#define IFXMIPS_GPIO_SANITY {if (port > MAX_PORTS || pin > PINS_PER_PORT) return -EINVAL; } - -int -ifxmips_port_reserve_pin (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - printk("%s : call to obseleted function\n", __func__); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_reserve_pin); - -int -ifxmips_port_free_pin (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - printk("%s : call to obseleted function\n", __func__); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_free_pin); - -int -ifxmips_port_set_open_drain (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_OD + (port * 0xC)) | (1 << pin), IFXMIPS_GPIO_P0_OD + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_set_open_drain); - -int -ifxmips_port_clear_open_drain (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_OD + (port * 0xC)) & ~(1 << pin), IFXMIPS_GPIO_P0_OD + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_clear_open_drain); - -int -ifxmips_port_set_pudsel (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_PUDSEL + (port * 0xC)) | (1 << pin), IFXMIPS_GPIO_P0_PUDSEL + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_set_pudsel); - -int -ifxmips_port_clear_pudsel (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_PUDSEL + (port * 0xC)) & ~(1 << pin), IFXMIPS_GPIO_P0_PUDSEL + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_clear_pudsel); - -int -ifxmips_port_set_puden (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_PUDEN + (port * 0xC)) | (1 << pin), IFXMIPS_GPIO_P0_PUDEN + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_set_puden); - -int -ifxmips_port_clear_puden (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_PUDEN + (port * 0xC)) & ~(1 << pin), IFXMIPS_GPIO_P0_PUDEN + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_clear_puden); - -int -ifxmips_port_set_stoff (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_STOFF + (port * 0xC)) | (1 << pin), IFXMIPS_GPIO_P0_STOFF + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_set_stoff); - -int -ifxmips_port_clear_stoff (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_STOFF + (port * 0xC)) & ~(1 << pin), IFXMIPS_GPIO_P0_STOFF + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_clear_stoff); - -int -ifxmips_port_set_dir_out (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_DIR + (port * 0xC)) | (1 << pin), IFXMIPS_GPIO_P0_DIR + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_set_dir_out); - -int -ifxmips_port_set_dir_in (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_DIR + (port * 0xC)) & ~(1 << pin), IFXMIPS_GPIO_P0_DIR + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_set_dir_in); - -int -ifxmips_port_set_output (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_OUT + (port * 0xC)) | (1 << pin), IFXMIPS_GPIO_P0_OUT + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_set_output); - -int -ifxmips_port_clear_output (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_OUT + (port * 0xC)) & ~(1 << pin), IFXMIPS_GPIO_P0_OUT + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_clear_output); - -int -ifxmips_port_get_input (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - - if (ifxmips_r32(IFXMIPS_GPIO_P0_IN + (port * 0xC)) & (1 << pin)) - return 0; - else - return 1; -} -EXPORT_SYMBOL(ifxmips_port_get_input); - -int -ifxmips_port_set_altsel0 (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_ALTSEL0 + (port * 0xC)) | (1 << pin), IFXMIPS_GPIO_P0_ALTSEL0 + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_set_altsel0); - -int -ifxmips_port_clear_altsel0 (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_ALTSEL0 + (port * 0xC)) & ~(1 << pin), IFXMIPS_GPIO_P0_ALTSEL0 + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_clear_altsel0); - -int -ifxmips_port_set_altsel1 (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_ALTSEL1 + (port * 0xC)) | (1 << pin), IFXMIPS_GPIO_P0_ALTSEL1 + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_set_altsel1); - -int -ifxmips_port_clear_altsel1 (unsigned int port, unsigned int pin) -{ - IFXMIPS_GPIO_SANITY; - ifxmips_w32(ifxmips_r32(IFXMIPS_GPIO_P0_ALTSEL1 + (port * 0xC)) & ~(1 << pin), IFXMIPS_GPIO_P0_ALTSEL1 + (port * 0xC)); - - return 0; -} -EXPORT_SYMBOL(ifxmips_port_clear_altsel1); - -#ifdef CONFIG_IFXMIPS_GPIO_RST_BTN -static inline void add_msg(struct sk_buff *skb, char *msg) -{ - char *scratch; - scratch = skb_put(skb, strlen(msg) + 1); - sprintf(scratch, msg); -} - -static void hotplug_button(struct work_struct *wq) -{ - struct sk_buff *skb; - struct event_t *event; - size_t len; - char *scratch, *s; - char buf[128]; - - event = container_of(wq, struct event_t, wq); - if (!uevent_sock) - goto done; - - /* allocate message with the maximum possible size */ - s = event->set ? "pressed" : "released"; - len = strlen(s) + 2; - skb = alloc_skb(len + 2048, GFP_KERNEL); - if (!skb) - goto done; - - /* add header */ - scratch = skb_put(skb, len); - sprintf(scratch, "%s@",s); - - /* copy keys to our continuous event payload buffer */ - add_msg(skb, "HOME=/"); - add_msg(skb, "PATH=/sbin:/bin:/usr/sbin:/usr/bin"); - add_msg(skb, "SUBSYSTEM=button"); - add_msg(skb, "BUTTON=reset"); - add_msg(skb, (event->set ? "ACTION=pressed" : "ACTION=released")); - sprintf(buf, "SEEN=%ld", (event->jiffies - seen)/HZ); - add_msg(skb, buf); - snprintf(buf, 128, "SEQNUM=%llu", uevent_next_seqnum()); - add_msg(skb, buf); - - NETLINK_CB(skb).dst_group = 1; - netlink_broadcast(uevent_sock, skb, 0, 1, GFP_KERNEL); - -done: - kfree(event); -} - -static void reset_button_poll(unsigned long unused) -{ - struct event_t *event; - - rst_button_timer.expires = jiffies + HZ; - add_timer(&rst_button_timer); - - if (pressed != ifxmips_port_get_input(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN)) - { - if(pressed) - pressed = 0; - else - pressed = 1; - printk("button was %s\n", (pressed ? "pressed" : "released")); - event = (struct event_t *) kzalloc(sizeof(struct event_t), GFP_ATOMIC); - if (!event) - { - printk("Could not alloc hotplug event\n"); - return; - } - event->set = pressed; - event->jiffies = jiffies; - INIT_WORK(&event->wq, (void *)(void *)hotplug_button); - schedule_work(&event->wq); - seen = jiffies; - } -} -#endif - -static int -ifxmips_gpio_probe (struct platform_device *dev) -{ - int retval = 0; - - sema_init (&port_sem, 1); - -#ifdef CONFIG_IFXMIPS_GPIO_RST_BTN - ifxmips_port_set_open_drain(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN); - ifxmips_port_clear_altsel0(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN); - ifxmips_port_clear_altsel1(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN); - ifxmips_port_set_dir_in(IFXMIPS_RST_PORT, IFXMIPS_RST_PIN); - - seen = jiffies; - - init_timer(&rst_button_timer); - rst_button_timer.function = reset_button_poll; - rst_button_timer.expires = jiffies + HZ; - add_timer(&rst_button_timer); -#endif - - printk(KERN_INFO DRVNAME ": device successfully initialized #%d.\n", ifxmips_gpio_major); - - return retval; -} - -static int -ifxmips_gpio_remove (struct platform_device *pdev) -{ -#ifdef CONFIG_IFXMIPS_GPIO_RST_BTN - del_timer_sync(&rst_button_timer); -#endif - unregister_chrdev(ifxmips_gpio_major, DRVNAME); - - return 0; -} - -static struct -platform_driver ifxmips_gpio_driver = { - .probe = ifxmips_gpio_probe, - .remove = ifxmips_gpio_remove, - .driver = { - .name = DRVNAME, - .owner = THIS_MODULE, - }, -}; - -int __init -ifxmips_gpio_init (void) -{ - int ret = platform_driver_register(&ifxmips_gpio_driver); - if (ret) - printk(KERN_INFO DRVNAME ": Error registering platfom driver!"); - return ret; -} - -void __exit -ifxmips_gpio_exit (void) -{ - platform_driver_unregister(&ifxmips_gpio_driver); -} - -module_init(ifxmips_gpio_init); -module_exit(ifxmips_gpio_exit); diff --git a/target/linux/ifxmips/files/drivers/char/ifxmips_mei_core.c b/target/linux/ifxmips/files/drivers/char/ifxmips_mei_core.c index 91e17a9330..e8787c5710 100644 --- a/target/linux/ifxmips/files/drivers/char/ifxmips_mei_core.c +++ b/target/linux/ifxmips/files/drivers/char/ifxmips_mei_core.c @@ -725,9 +725,9 @@ mei_fuse_prg (void) { u32 reg_data, fuse_value; int i = 0; - meiLongwordRead ( IFXMIPS_RCU_REQ, ®_data); + meiLongwordRead ( IFXMIPS_RCU_RST, ®_data); while ((reg_data & 0x10000000) == 0) { - meiLongwordRead ( IFXMIPS_RCU_REQ, ®_data); + meiLongwordRead ( IFXMIPS_RCU_RST, ®_data); //add a watchdog i++; /* 0x4000 translate to about 16 ms@111M, so should be enough */ @@ -736,8 +736,8 @@ mei_fuse_prg (void) } // STEP a: Prepare memory for external accesses // Write fuse_en bit24 - meiLongwordRead (IFXMIPS_RCU_REQ, ®_data); - meiLongwordWrite (IFXMIPS_RCU_REQ, reg_data | (1 << 24)); + meiLongwordRead (IFXMIPS_RCU_RST, ®_data); + meiLongwordWrite (IFXMIPS_RCU_RST, reg_data | (1 << 24)); mei_fuse_rar_init (); for (i = 0; i < 4; i++) { @@ -795,8 +795,8 @@ mei_fuse_prg (void) break; } } - meiLongwordRead (IFXMIPS_RCU_REQ, ®_data); - meiLongwordWrite (IFXMIPS_RCU_REQ, reg_data & 0xF7FFFFFF); + meiLongwordRead (IFXMIPS_RCU_RST, ®_data); + meiLongwordWrite (IFXMIPS_RCU_RST, reg_data & 0xF7FFFFFF); } /** @@ -912,11 +912,11 @@ meiResetARC (void) meiHaltArc (); - meiLongwordRead (IFXMIPS_RCU_REQ, &arc_debug_data); - meiLongwordWrite (IFXMIPS_RCU_REQ, + meiLongwordRead (IFXMIPS_RCU_RST, &arc_debug_data); + meiLongwordWrite (IFXMIPS_RCU_RST, arc_debug_data | IFXMIPS_RCU_RST_REQ_DFE | IFXMIPS_RCU_RST_REQ_AFE); - meiLongwordWrite (IFXMIPS_RCU_REQ, arc_debug_data); + meiLongwordWrite (IFXMIPS_RCU_RST, arc_debug_data); // reset ARC meiLongwordWrite(MEI_RST_CONTROL, MEI_SOFT_RESET); meiLongwordWrite(MEI_RST_CONTROL, 0); @@ -2769,8 +2769,8 @@ mei_ioctl (MEI_inode_t * ino, MEI_file_t * fil, unsigned int command, *IFXMIPS_GPIO_P0_OD = (*IFXMIPS_GPIO_P0_OD) | 0x800; //enable ARC JTAG - meiLongwordRead(IFXMIPS_RCU_REQ, ®_data); - meiLongwordWrite(IFXMIPS_RCU_REQ, reg_data | IFXMIPS_RCU_RST_REQ_ARC_JTAG); + meiLongwordRead(IFXMIPS_RCU_RST, ®_data); + meiLongwordWrite(IFXMIPS_RCU_RST, reg_data | IFXMIPS_RCU_RST_REQ_ARC_JTAG); break; case GET_ADSL_LOOP_DIAGNOSTICS_MODE: |