1
0
mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2025-04-21 12:27:27 +03:00

strip the kernel version suffix from target directories, except for brcm-2.4 (the -2.4 will be included in the board name here). CONFIG_LINUX_<ver>_<board> becomes CONFIG_TARGET_<board>, same for profiles.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@8653 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
2007-09-06 16:27:37 +00:00
parent 5389989aba
commit 17c7b6c3fd
701 changed files with 48 additions and 105 deletions

View File

@@ -0,0 +1,361 @@
/*
* $Id$
*
* ADM5120 GPIO LED devices
*
* Copyright (C) 2007 OpenWrt.org
* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/err.h>
#include <linux/gpio_leds.h>
#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/mach-adm5120/adm5120_info.h>
#define NUM_LEDS_MAX 23
#define ADM5120_GPIO_xxxx 0x100 /* an unknown pin */
struct mach_data {
unsigned long machtype;
unsigned count;
struct gpio_led_platform_data *data;
};
struct adm5120_leddev {
struct platform_device pdev;
struct gpio_led_platform_data pdata;
};
static int led_count = 0;
static struct adm5120_leddev *led_devs[NUM_LEDS_MAX];
#define LED_ARRAY(n) \
static struct gpio_led_platform_data \
n ## _leds [] __initdata =
#define LED_DATA(n,t,g,off,on) { \
.name = (n), \
.trigger = (t), \
.gpio = (g), \
.value_off = (off), \
.value_on = (on) \
}
#define LED_STD(g,n,t) LED_DATA((n),(t),(g), 0, 1)
#define LED_INV(g,n,t) LED_DATA((n),(t),(g), 1, 0)
/*
* Compex boards
*/
#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
LED_ARRAY(np27g) { /* FIXME: untested */
LED_STD(ADM5120_GPIO_xxxx, "lan1", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "lan2", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "lan3", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "lan4", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "wan_cond", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "wlan", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "wan_act", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "usb1", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "usb2", NULL ),
LED_INV(ADM5120_GPIO_PIN2, "power", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "diag", NULL ),
};
#endif
#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
LED_ARRAY(np28g) { /* FIXME: untested */
LED_STD(ADM5120_GPIO_xxxx, "lan1", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "lan2", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "lan3", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "wan", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "wlan", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "usb1", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "usb2", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "usb3", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "usb4", NULL ),
LED_INV(ADM5120_GPIO_PIN2, "power", NULL ),
LED_STD(ADM5120_GPIO_xxxx, "diag", NULL ),
};
#endif
LED_ARRAY(wp54g) {
LED_INV(ADM5120_GPIO_PIN2, "diag", NULL ),
LED_INV(ADM5120_GPIO_PIN6, "wlan", NULL ),
LED_INV(ADM5120_GPIO_PIN7, "wan", NULL ),
LED_INV(ADM5120_GPIO_P0L0, "lan1", NULL ),
LED_INV(ADM5120_GPIO_P1L0, "lan2", NULL ),
};
/*
* Edimax boards
*/
LED_ARRAY(br6104k) {
LED_STD(ADM5120_GPIO_PIN0, "power", NULL ),
LED_INV(ADM5120_GPIO_P0L1, "wan_speed", NULL ),
LED_INV(ADM5120_GPIO_P0L0, "wan_lnkact", NULL ),
LED_INV(ADM5120_GPIO_P1L1, "lan1_speed", NULL ),
LED_INV(ADM5120_GPIO_P1L0, "lan1_lnkact", NULL ),
LED_INV(ADM5120_GPIO_P2L1, "lan2_speed", NULL ),
LED_INV(ADM5120_GPIO_P2L0, "lan2_lnkact", NULL ),
LED_INV(ADM5120_GPIO_P3L1, "lan3_speed", NULL ),
LED_INV(ADM5120_GPIO_P3L0, "lan3_lnkact", NULL ),
LED_INV(ADM5120_GPIO_P4L1, "lan4_speed", NULL ),
LED_INV(ADM5120_GPIO_P4L0, "lan4_lnkact", NULL ),
};
/*
* Mikrotik boards
*/
#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
LED_ARRAY(rb100) { /* FIXME: untested */
LED_STD(ADM5120_GPIO_PIN6, "power", NULL ),
LED_STD(ADM5120_GPIO_PIN3, "user", NULL ),
};
#endif
LED_ARRAY(rb133) {
LED_STD(ADM5120_GPIO_PIN6, "power", NULL ),
LED_STD(ADM5120_GPIO_PIN5, "user", NULL ),
};
/*
* ZyXEL boards
*/
#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
LED_ARRAY(p334) { /* FIXME: untested */
LED_INV(ADM5120_GPIO_xxxx, "power", NULL ),
LED_INV(ADM5120_GPIO_xxxx, "lan1", NULL ),
LED_INV(ADM5120_GPIO_xxxx, "lan2", NULL ),
LED_INV(ADM5120_GPIO_xxxx, "lan3", NULL ),
LED_INV(ADM5120_GPIO_xxxx, "lan4", NULL ),
LED_INV(ADM5120_GPIO_xxxx, "wan", NULL ),
};
#endif
LED_ARRAY(p334wt) {
LED_INV(ADM5120_GPIO_PIN2, "power", NULL ),
LED_INV(ADM5120_GPIO_P3L0, "lan1", NULL ),
LED_INV(ADM5120_GPIO_P2L0, "lan2", NULL ),
LED_INV(ADM5120_GPIO_P1L0, "lan3", NULL ),
LED_INV(ADM5120_GPIO_P0L0, "lan4", NULL ),
LED_INV(ADM5120_GPIO_P4L0, "wan", NULL ),
LED_INV(ADM5120_GPIO_P4L2, "wlan", NULL ),
LED_INV(ADM5120_GPIO_P2L2, "otist", NULL ),
LED_INV(ADM5120_GPIO_P1L2, "hidden", NULL ),
};
#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
LED_ARRAY(p335) { /* FIXME: untested */
LED_INV(ADM5120_GPIO_PIN2, "power", NULL ),
LED_INV(ADM5120_GPIO_P3L0, "lan1", NULL ),
LED_INV(ADM5120_GPIO_P2L0, "lan2", NULL ),
LED_INV(ADM5120_GPIO_P1L0, "lan3", NULL ),
LED_INV(ADM5120_GPIO_P0L0, "lan4", NULL ),
LED_INV(ADM5120_GPIO_P4L0, "wan", NULL ),
LED_INV(ADM5120_GPIO_P4L2, "wlan", NULL ),
LED_INV(ADM5120_GPIO_P2L2, "otist", NULL ),
LED_INV(ADM5120_GPIO_xxxx, "usb", NULL ),
};
#endif
/*
* Generic board
*/
LED_ARRAY(generic) {
#if defined(CONFIG_LEDS_ADM5120_DIAG)
LED_STD(ADM5120_GPIO_PIN0, "gpio0", NULL ),
LED_STD(ADM5120_GPIO_PIN1, "gpio1", NULL ),
LED_STD(ADM5120_GPIO_PIN2, "gpio2", NULL ),
LED_STD(ADM5120_GPIO_PIN3, "gpio3", NULL ),
LED_STD(ADM5120_GPIO_PIN4, "gpio4", NULL ),
LED_STD(ADM5120_GPIO_PIN5, "gpio5", NULL ),
LED_STD(ADM5120_GPIO_PIN6, "gpio6", NULL ),
LED_STD(ADM5120_GPIO_PIN7, "gpio7", NULL ),
LED_STD(ADM5120_GPIO_P0L0, "port0led0", NULL ),
LED_STD(ADM5120_GPIO_P0L1, "port0led1", NULL ),
LED_STD(ADM5120_GPIO_P0L2, "port0led2", NULL ),
LED_STD(ADM5120_GPIO_P1L0, "port1led0", NULL ),
LED_STD(ADM5120_GPIO_P1L1, "port1led1", NULL ),
LED_STD(ADM5120_GPIO_P1L2, "port1led2", NULL ),
LED_STD(ADM5120_GPIO_P2L0, "port2led0", NULL ),
LED_STD(ADM5120_GPIO_P2L1, "port2led1", NULL ),
LED_STD(ADM5120_GPIO_P2L2, "port2led2", NULL ),
LED_STD(ADM5120_GPIO_P3L0, "port3led0", NULL ),
LED_STD(ADM5120_GPIO_P3L1, "port3led1", NULL ),
LED_STD(ADM5120_GPIO_P3L2, "port3led2", NULL ),
LED_STD(ADM5120_GPIO_P4L0, "port4led0", NULL ),
LED_STD(ADM5120_GPIO_P4L1, "port4led1", NULL ),
LED_STD(ADM5120_GPIO_P4L2, "port4led2", NULL ),
#endif
};
#define MACH_DATA(m, n) { \
.machtype = (m), \
.count = ARRAY_SIZE(n ## _leds), \
.data = n ## _leds \
}
static struct mach_data machines[] __initdata = {
MACH_DATA(MACH_ADM5120_GENERIC, generic),
/* Compex */
MACH_DATA(MACH_ADM5120_WP54AG, wp54g),
MACH_DATA(MACH_ADM5120_WP54G, wp54g),
MACH_DATA(MACH_ADM5120_WP54G_WRT, wp54g),
MACH_DATA(MACH_ADM5120_WPP54AG, wp54g),
MACH_DATA(MACH_ADM5120_WPP54G, wp54g),
/* Edimax */
MACH_DATA(MACH_ADM5120_BR6104K, br6104k),
/* Mikrotik */
MACH_DATA(MACH_ADM5120_RB_133, rb133),
MACH_DATA(MACH_ADM5120_RB_133C, rb133),
/* ZyXEL */
MACH_DATA(MACH_ADM5120_P334WT, p334wt),
#if defined(CONFIG_LEDS_ADM5120_EXPERIMENTAL)
/* untested */
MACH_DATA(MACH_ADM5120_P334, p334),
MACH_DATA(MACH_ADM5120_P335, p335),
MACH_DATA(MACH_ADM5120_RB_111, rb100),
MACH_DATA(MACH_ADM5120_RB_112, rb100),
MACH_DATA(MACH_ADM5120_NP27G, np27g),
MACH_DATA(MACH_ADM5120_NP28G, np28g),
MACH_DATA(MACH_ADM5120_NP28GHS, np28g),
#endif
};
static struct adm5120_leddev * __init
create_leddev(struct gpio_led_platform_data *data)
{
struct adm5120_leddev *p;
p = kzalloc(sizeof(*p), GFP_KERNEL);
if (p == NULL)
return NULL;
memcpy(&p->pdata, data, sizeof(p->pdata));
p->pdev.dev.platform_data = &p->pdata;
return p;
}
static void
destroy_leddev(struct adm5120_leddev *led)
{
if (led)
kfree(led);
}
static struct mach_data * __init
adm5120_leds_findmach(unsigned long machtype)
{
struct mach_data *mach;
int i;
mach = NULL;
for (i=0; i<ARRAY_SIZE(machines); i++) {
if (machines[i].machtype == machtype) {
mach = &machines[i];
break;
}
};
#if defined(CONFIG_LEDS_ADM5120_DIAG)
if (mach == NULL)
mach = machines;
#endif
return mach;
}
static int __init
adm5120_leds_init(void)
{
struct mach_data *mach;
int i, ret;
if (mips_machgroup != MACH_GROUP_ADM5120) {
ret = -EINVAL;
goto err;
}
mach = adm5120_leds_findmach(mips_machtype);
if (mach == NULL) {
/* the board is not yet supported */
ret = -EINVAL;
goto err;
}
for (i=0; i < mach->count; i++) {
led_devs[i] = create_leddev(&mach->data[i]);
if (led_devs[i] == NULL) {
ret = -ENOMEM;
goto err_destroy;
}
led_devs[i]->pdev.name = "gpio-led";
led_devs[i]->pdev.id = i;
}
for (i=0; i < mach->count; i++) {
ret = platform_device_register(&led_devs[i]->pdev);
if (ret)
goto err_unregister;
}
led_count = mach->count;
return 0;
err_unregister:
for (i--; i>=0; i--)
platform_device_unregister(&led_devs[i]->pdev);
err_destroy:
for (i=0; i<led_count; i++)
destroy_leddev(led_devs[i]);
err:
return ret;
}
static void __exit
adm5120_leds_exit(void)
{
int i;
for (i=0; i < led_count; i++) {
platform_device_unregister(&led_devs[i]->pdev);
destroy_leddev(led_devs[i]);
}
}
module_init(adm5120_leds_init);
module_exit(adm5120_leds_exit);
MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
MODULE_DESCRIPTION(DRV_DESC);
MODULE_LICENSE("GPL");

View File

@@ -0,0 +1,212 @@
/*
* $Id$
*
* Driver for LEDs connected to GPIO lines
*
* Copyright (C) 2007 OpenWrt.org
* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
*
* This file was derived from:
* /drivers/led/leds-s3c24xx.c
* (c) 2006 Simtec Electronics, Ben Dooks <ben@simtec.co.uk>
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
#include <linux/err.h>
#include <linux/gpio_leds.h>
#include <asm/io.h>
#include <asm/gpio.h>
#define DRV_NAME "gpio-led"
#define DRV_DESC "GPIO LEDs driver"
struct gpio_led_device {
struct led_classdev cdev;
struct gpio_led_platform_data *pdata;
};
static inline struct gpio_led_device *pdev_to_led(struct platform_device *dev)
{
return platform_get_drvdata(dev);
}
static inline struct gpio_led_device *class_to_led(struct led_classdev *led_cdev)
{
return container_of(led_cdev, struct gpio_led_device, cdev);
}
static void gpio_led_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
struct gpio_led_device *led;
struct gpio_led_platform_data *pdata;
led = class_to_led(led_cdev);
pdata = led->pdata;
switch (brightness) {
case LED_FULL:
gpio_direction_output(pdata->gpio, pdata->value_on);
break;
case LED_OFF:
gpio_direction_output(pdata->gpio, pdata->value_off);
break;
default:
gpio_direction_output(pdata->gpio, brightness);
break;
}
}
static int __devinit gpio_led_probe(struct platform_device *dev)
{
struct gpio_led_platform_data *pdata;
struct gpio_led_device *led;
int ret;
pdata = dev->dev.platform_data;
if (pdata == NULL) {
dev_err(&dev->dev, "no platform data, id=%d\n", dev->id);
ret = -EINVAL;
goto err;
}
if (pdata->name == NULL) {
dev_err(&dev->dev, "no led name specified\n");
ret = -EINVAL;
goto err;
}
ret = gpio_request(pdata->gpio, pdata->name);
if (ret) {
dev_err(&dev->dev, "gpio_request failed\n");
goto err;
}
led = kzalloc(sizeof(*led), GFP_KERNEL);
if (led == NULL) {
dev_err(&dev->dev, "no memory for device");
ret = -ENOMEM;
goto err_free_gpio;
}
platform_set_drvdata(dev, led);
led->pdata = pdata;
led->cdev.name = pdata->name;
led->cdev.brightness_set = gpio_led_set;
#ifdef CONFIG_LEDS_TRIGGERS
led->cdev.default_trigger = pdata->trigger;
#endif
ret = led_classdev_register(&dev->dev, &led->cdev);
if (ret < 0) {
dev_err(&dev->dev, "led_classdev_register failed");
goto err_free_led;
}
return 0;
err_free_led:
kfree(led);
err_free_gpio:
gpio_free(pdata->gpio);
err:
return ret;
}
static int __devexit gpio_led_remove(struct platform_device *dev)
{
struct gpio_led_device *led;
struct gpio_led_platform_data *pdata;
pdata = dev->dev.platform_data;
led = pdev_to_led(dev);
led_classdev_unregister(&led->cdev);
kfree(led);
gpio_free(pdata->gpio);
return 0;
}
#ifdef CONFIG_PM
static int gpio_led_suspend(struct platform_device *dev,
pm_message_t state)
{
struct gpio_led_device *led;
led = pdev_to_led(dev);
led_classdev_suspend(&led->cdev);
return 0;
}
static int gpio_led_resume(struct platform_device *dev)
{
struct gpio_led_device *led;
led = pdev_to_led(dev);
led_classdev_resume(&led->cdev);
return 0;
}
#endif /* CONFIG_PM */
static struct platform_driver gpio_led_driver = {
.probe = gpio_led_probe,
.remove = __devexit_p(gpio_led_remove),
#ifdef CONFIG_PM
.suspend = gpio_led_suspend,
.resume = gpio_led_resume,
#endif
.driver = {
.name = DRV_NAME,
.owner = THIS_MODULE,
},
};
static int __init gpio_led_init(void)
{
int ret;
ret = platform_driver_register(&gpio_led_driver);
if (ret)
printk(KERN_ALERT DRV_DESC " register failed\n");
else
printk(KERN_INFO DRV_DESC " registered\n");
return ret;
}
static void __exit gpio_led_exit(void)
{
platform_driver_unregister(&gpio_led_driver);
}
module_init(gpio_led_init);
module_exit(gpio_led_exit);
MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
MODULE_DESCRIPTION(DRV_DESC);
MODULE_LICENSE("GPL");

View File

@@ -0,0 +1,574 @@
/*
* $Id$
*
* Platform driver for NOR flash devices on ADM5120 based boards
*
* Copyright (C) 2007 OpenWrt.org
* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
*
* This file was derived from: drivers/mtd/map/physmap.c
* Copyright (C) 2003 MontaVista Software Inc.
* Author: Jun Sun, jsun@mvista.com or jsun@junsun.net
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/partitions.h>
#include <asm/io.h>
#include <asm/mach-adm5120/adm5120_defs.h>
#include <asm/mach-adm5120/adm5120_switch.h>
#include <asm/mach-adm5120/adm5120_mpmc.h>
#include <asm/mach-adm5120/adm5120_platform.h>
#define DRV_NAME "adm5120-flash"
#define DRV_DESC "ADM5120 flash MAP driver"
#define MAX_PARSED_PARTS 8
#ifdef ADM5120_FLASH_DEBUG
#define MAP_DBG(m, f, a...) printk(KERN_INFO "%s: " f, (m->name) , ## a)
#else
#define MAP_DBG(m, f, a...) do {} while (0)
#endif
#define MAP_ERR(m, f, a...) printk(KERN_ERR "%s: " f, (m->name) , ## a)
#define MAP_INFO(m, f, a...) printk(KERN_INFO "%s: " f, (m->name) , ## a)
struct adm5120_map_info {
struct map_info map;
void (*switch_bank)(unsigned);
unsigned long window_size;
};
struct adm5120_flash_info {
struct mtd_info *mtd;
struct resource *res;
struct platform_device *dev;
struct adm5120_map_info amap;
#ifdef CONFIG_MTD_PARTITIONS
int nr_parts;
struct mtd_partition *parts[MAX_PARSED_PARTS];
#endif
};
struct flash_desc {
u32 phys;
u32 srs_shift;
u32 mpmc_reg;
};
/*
* Globals
*/
static DEFINE_SPINLOCK(adm5120_flash_spin);
#define FLASH_LOCK() spin_lock(&adm5120_flash_spin)
#define FLASH_UNLOCK() spin_unlock(&adm5120_flash_spin)
static u32 flash_bankwidths[4] = { 1, 2, 4, 0 };
static u32 flash_sizes[8] = {
0, 512*1024, 1024*1024, 2*1024*1024,
4*1024*1024, 0, 0, 0
};
static struct flash_desc flash_descs[2] = {
{
.phys = ADM5120_SRAM0_BASE,
.mpmc_reg = MPMC_REG_SC1,
.srs_shift = MEMCTRL_SRS0_SHIFT,
}, {
.phys = ADM5120_SRAM1_BASE,
.mpmc_reg = MPMC_REG_SC0,
.srs_shift = MEMCTRL_SRS1_SHIFT,
}
};
static const char *probe_types[] = {
"cfi_probe",
"jedec_probe",
"map_rom",
NULL
};
#ifdef CONFIG_MTD_PARTITIONS
static const char *parse_types[] = {
"cmdlinepart",
#ifdef CONFIG_MTD_REDBOOT_PARTS
"RedBoot",
#endif
#ifdef CONFIG_MTD_MYLOADER_PARTS
"MyLoader",
#endif
};
#endif
#define BANK_SIZE (2<<20)
#define BANK_SIZE_MAX (4<<20)
#define BANK_OFFS_MASK (BANK_SIZE-1)
#define BANK_START_MASK (~BANK_OFFS_MASK)
static inline struct adm5120_map_info *map_to_amap(struct map_info *map)
{
return (struct adm5120_map_info *)map;
}
static void adm5120_flash_switchbank(struct map_info *map,
unsigned long ofs)
{
struct adm5120_map_info *amap = map_to_amap(map);
unsigned bank;
if (amap->switch_bank == NULL)
return;
bank = (ofs & BANK_START_MASK) >> 21;
if (bank > 1)
BUG();
MAP_DBG(map, "switching to bank %u, ofs=%lX\n", bank, ofs);
amap->switch_bank(bank);
}
static map_word adm5120_flash_read(struct map_info *map, unsigned long ofs)
{
struct adm5120_map_info *amap = map_to_amap(map);
map_word ret;
MAP_DBG(map, "reading from ofs %lX\n", ofs);
if (ofs >= amap->window_size)
return map_word_ff(map);
FLASH_LOCK();
adm5120_flash_switchbank(map, ofs);
ret = inline_map_read(map, (ofs & (amap->window_size-1)));
FLASH_UNLOCK();
return ret;
}
static void adm5120_flash_write(struct map_info *map, const map_word datum,
unsigned long ofs)
{
struct adm5120_map_info *amap = map_to_amap(map);
MAP_DBG(map,"writing to ofs %lX\n", ofs);
if (ofs > amap->window_size)
return;
FLASH_LOCK();
adm5120_flash_switchbank(map, ofs);
inline_map_write(map, datum, (ofs & (amap->window_size-1)));
FLASH_UNLOCK();
}
static void adm5120_flash_copy_from(struct map_info *map, void *to,
unsigned long from, ssize_t len)
{
struct adm5120_map_info *amap = map_to_amap(map);
char *p;
ssize_t t;
MAP_DBG(map, "copy_from, to=%lX, from=%lX, len=%lX\n",
(unsigned long)to, from, (unsigned long)len);
if (from > amap->window_size)
return;
p = (char *)to;
while (len > 0) {
t = len;
if ((from < BANK_SIZE) && ((from+len) > BANK_SIZE))
t = BANK_SIZE-from;
FLASH_LOCK();
MAP_DBG(map, "copying %lu byte(s) from %lX to %lX\n",
(unsigned long)t, (from & (amap->window_size-1)),
(unsigned long)p);
adm5120_flash_switchbank(map, from);
inline_map_copy_from(map, p, (from & (amap->window_size-1)), t);
FLASH_UNLOCK();
p += t;
from += t;
len -= t;
}
}
static int adm5120_flash_initres(struct adm5120_flash_info *info)
{
struct map_info *map = &info->amap.map;
int err = 0;
info->res = request_mem_region(map->phys, map->size, map->name);
if (info->res == NULL) {
MAP_ERR(map, "could not reserve memory region\n");
err = -ENOMEM;
goto out;
}
map->virt = ioremap_nocache(map->phys, map->size);
if (map->virt == NULL) {
MAP_ERR(map, "failed to ioremap flash region\n");
err = -ENOMEM;
goto out;
}
out:
return err;
}
#define SWITCH_READ(r) *(u32 *)(KSEG1ADDR(ADM5120_SWITCH_BASE)+(r))
#define SWITCH_WRITE(r,v) *(u32 *)(KSEG1ADDR(ADM5120_SWITCH_BASE)+(r))=(v)
#define MPMC_READ(r) *(u32 *)(KSEG1ADDR(ADM5120_MPMC_BASE)+(r))
#define MPMC_WRITE(r,v) *(u32 *)(KSEG1ADDR(ADM5120_MPMC_BASE)+(r))=(v)
static int adm5120_flash_initinfo(struct adm5120_flash_info *info,
struct platform_device *dev)
{
struct map_info *map = &info->amap.map;
struct adm5120_flash_platform_data *pdata = dev->dev.platform_data;
struct flash_desc *fdesc;
u32 t;
map->name = dev->dev.bus_id;
if (dev->id > 1) {
MAP_ERR(map, "invalid flash id\n");
goto err_out;
}
fdesc = &flash_descs[dev->id];
/* get memory window size */
t = SWITCH_READ(SWITCH_REG_MEMCTRL) >> fdesc->srs_shift;
t &= MEMCTRL_SRS_MASK;
info->amap.window_size = flash_sizes[t];
if (info->amap.window_size == 0) {
MAP_ERR(map, "invalid flash size detected\n");
goto err_out;
}
/* get flash bus width */
t = MPMC_READ(fdesc->mpmc_reg) & SC_MW_MASK;
map->bankwidth = flash_bankwidths[t];
if (map->bankwidth == 0) {
MAP_ERR(map, "invalid bus width detected\n");
goto err_out;
}
map->phys = fdesc->phys;
map->size = BANK_SIZE_MAX;
simple_map_init(map);
map->read = adm5120_flash_read;
map->write = adm5120_flash_write;
map->copy_from = adm5120_flash_copy_from;
if (pdata) {
map->set_vpp = pdata->set_vpp;
info->amap.switch_bank = pdata->switch_bank;
}
info->dev = dev;
MAP_INFO(map, "probing at 0x%lX, size:%ldKiB, width:%d bits\n",
(unsigned long)map->phys,
(unsigned long)info->amap.window_size >> 10,
map->bankwidth*8);
return 0;
err_out:
return -ENODEV;
}
static void adm5120_flash_initbanks(struct adm5120_flash_info *info)
{
struct map_info *map = &info->amap.map;
if (info->mtd->size <= BANK_SIZE)
/* no bank switching needed */
return;
if (info->amap.switch_bank) {
info->amap.window_size = info->mtd->size;
return;
}
MAP_ERR(map, "reduce visibility from %ldKiB to %ldKiB\n",
(unsigned long)map->size >> 10,
(unsigned long)info->mtd->size >> 10);
info->mtd->size = info->amap.window_size;
}
#ifdef CONFIG_MTD_PARTITIONS
static int adm5120_flash_initparts(struct adm5120_flash_info *info)
{
struct adm5120_flash_platform_data *pdata = info->dev->dev.platform_data;
struct map_info *map = &info->amap.map;
int num_parsers;
const char *parser[2];
int err = 0;
int nr_parts;
int i;
info->nr_parts = 0;
if (pdata == NULL)
goto out;
if (pdata->nr_parts) {
MAP_INFO(map, "adding static partitions\n");
err = add_mtd_partitions(info->mtd, pdata->parts,
pdata->nr_parts);
if (err == 0) {
info->nr_parts += pdata->nr_parts;
goto out;
}
}
num_parsers = ARRAY_SIZE(parse_types);
if (num_parsers > MAX_PARSED_PARTS)
num_parsers = MAX_PARSED_PARTS;
parser[1] = NULL;
for (i=0; i<num_parsers; i++) {
parser[0] = parse_types[i];
MAP_INFO(map, "parsing \"%s\" partitions\n",
parser[0]);
nr_parts = parse_mtd_partitions(info->mtd, parser,
&info->parts[i], 0);
if (nr_parts <= 0)
continue;
MAP_INFO(map, "adding \"%s\" partitions\n",
parser[0]);
err = add_mtd_partitions(info->mtd, info->parts[i], nr_parts);
if (err)
break;
info->nr_parts += nr_parts;
}
out:
return err;
}
#else
static int adm5120_flash_initparts(struct adm5120_flash_info *info)
{
return 0;
}
#endif /* CONFIG_MTD_PARTITIONS */
#ifdef CONFIG_MTD_PARTITIONS
static void adm5120_flash_remove_mtd(struct adm5120_flash_info *info)
{
int i;
if (info->nr_parts) {
del_mtd_partitions(info->mtd);
for (i=0; i<MAX_PARSED_PARTS; i++)
if (info->parts[i] != NULL)
kfree(info->parts[i]);
} else {
del_mtd_device(info->mtd);
}
}
#else
static void adm5120_flash_remove_mtd(struct adm5120_flash_info *info)
{
del_mtd_device(info->mtd);
}
#endif
static int adm5120_flash_remove(struct platform_device *dev)
{
struct adm5120_flash_info *info;
info = platform_get_drvdata(dev);
if (info == NULL)
return 0;
platform_set_drvdata(dev, NULL);
if (info->mtd != NULL) {
adm5120_flash_remove_mtd(info);
map_destroy(info->mtd);
}
if (info->amap.map.virt != NULL)
iounmap(info->amap.map.virt);
if (info->res != NULL) {
release_resource(info->res);
kfree(info->res);
}
return 0;
}
static int adm5120_flash_probe(struct platform_device *dev)
{
struct adm5120_flash_info *info;
struct map_info *map;
const char **probe_type;
int err;
info = kzalloc(sizeof(*info), GFP_KERNEL);
if (info == NULL) {
err = -ENOMEM;
goto err_out;
}
platform_set_drvdata(dev, info);
err = adm5120_flash_initinfo(info, dev);
if (err)
goto err_out;
err = adm5120_flash_initres(info);
if (err)
goto err_out;
map = &info->amap.map;
for (probe_type = probe_types; info->mtd == NULL && *probe_type != NULL;
probe_type++)
info->mtd = do_map_probe(*probe_type, map);
if (info->mtd == NULL) {
MAP_ERR(map, "map_probe failed\n");
err = -ENXIO;
goto err_out;
}
adm5120_flash_initbanks(info);
if (info->mtd->size < info->amap.window_size) {
/* readjust resources */
iounmap(map->virt);
release_resource(info->res);
kfree(info->res);
info->amap.window_size = info->mtd->size;
map->size = info->mtd->size;
MAP_INFO(map, "reducing map size to %ldKiB\n",
(unsigned long)map->size >> 10);
err = adm5120_flash_initres(info);
if (err)
goto err_out;
}
MAP_INFO(map, "found at 0x%lX, size:%ldKiB, width:%d bits\n",
(unsigned long)map->phys, (unsigned long)info->mtd->size >> 10,
map->bankwidth*8);
info->mtd->owner = THIS_MODULE;
err = adm5120_flash_initparts(info);
if (err)
goto err_out;
if (info->nr_parts == 0) {
MAP_INFO(map, "no partitions available, registering whole flash\n");
add_mtd_device(info->mtd);
}
return 0;
err_out:
adm5120_flash_remove(dev);
return err;
}
#ifdef CONFIG_PM
static int adm5120_flash_suspend(struct platform_device *dev, pm_message_t state)
{
struct adm5120_flash_info *info = platform_get_drvdata(dev);
int ret = 0;
if (info)
ret = info->mtd->suspend(info->mtd);
return ret;
}
static int adm5120_flash_resume(struct platform_device *dev)
{
struct adm5120_flash_info *info = platform_get_drvdata(dev);
if (info)
info->mtd->resume(info->mtd);
return 0;
}
static void adm5120_flash_shutdown(struct platform_device *dev)
{
struct adm5120_flash_info *info = platform_get_drvdata(dev);
if (info && info->mtd->suspend(info->mtd) == 0)
info->mtd->resume(info->mtd);
}
#endif
static struct platform_driver adm5120_flash_driver = {
.probe = adm5120_flash_probe,
.remove = adm5120_flash_remove,
#ifdef CONFIG_PM
.suspend = adm5120_flash_suspend,
.resume = adm5120_flash_resume,
.shutdown = adm5120_flash_shutdown,
#endif
.driver = {
.name = DRV_NAME,
},
};
static int __init adm5120_flash_init(void)
{
int err;
err = platform_driver_register(&adm5120_flash_driver);
return err;
}
static void __exit adm5120_flash_exit(void)
{
platform_driver_unregister(&adm5120_flash_driver);
}
module_init(adm5120_flash_init);
module_exit(adm5120_flash_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
MODULE_DESCRIPTION(DRV_DESC);

View File

@@ -0,0 +1,178 @@
/*
* $Id$
*
* Parse MyLoader-style flash partition tables and produce a Linux partition
* array to match.
*
* Copyright (C) 2007 OpenWrt.org
* Copyright (C) 2007 Gabor Juhos <juhosg at openwrt.org>
*
* This file was based on drivers/mtd/redboot.c
* Author: Red Hat, Inc. - David Woodhouse <dwmw2@cambridge.redhat.com>
*
* 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., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/vmalloc.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/byteorder/generic.h>
#include <prom/myloader.h>
#define NAME_LEN_MAX 20
#define NAME_MYLOADER "MyLoader"
#define NAME_PARTITION_TABLE "Partition Table"
#define BLOCK_LEN_MIN 0x10000
int parse_myloader_partitions(struct mtd_info *master,
struct mtd_partition **pparts,
unsigned long origin)
{
struct mylo_partition_table *tab;
struct mylo_partition *part;
struct mtd_partition *mtd_parts;
struct mtd_partition *mtd_part;
int num_parts;
int ret, i;
size_t retlen;
size_t parts_len;
char *names;
unsigned long offset;
unsigned long blocklen;
tab = vmalloc(sizeof(*tab));
if (!tab) {
return -ENOMEM;
goto out;
}
blocklen = master->erasesize;
if (blocklen < BLOCK_LEN_MIN)
blocklen = BLOCK_LEN_MIN;
/* Partition Table is always located on the second erase block */
offset = blocklen;
printk(KERN_NOTICE "%s: searching for MyLoader partition table at "
"offset 0x%lx\n", master->name, offset);
ret = master->read(master, offset, sizeof(*tab), &retlen, (void *)tab);
if (ret)
goto out;
if (retlen != sizeof(*tab)) {
ret = -EIO;
goto out_free_buf;
}
/* Check for Partition Table magic number */
if (tab->magic != le32_to_cpu(MYLO_MAGIC_PARTITIONS)) {
printk(KERN_NOTICE "%s: no MyLoader partition table found\n",
master->name);
ret = 0;
goto out_free_buf;
}
/* The MyLoader and the Partition Table is always present */
num_parts = 2;
/* Detect number of used partitions */
for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
part = &tab->partitions[i];
if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
continue;
num_parts++;
}
mtd_parts = kzalloc((num_parts*sizeof(*mtd_part) + num_parts*NAME_LEN_MAX),
GFP_KERNEL);
if (!mtd_parts) {
ret = -ENOMEM;
goto out_free_buf;
}
mtd_part = mtd_parts;
names = (char *)&mtd_parts[num_parts];
strncpy(names, NAME_MYLOADER, NAME_LEN_MAX-1);
mtd_part->name = names;
mtd_part->offset = 0;
mtd_part->size = blocklen;
mtd_part->mask_flags = MTD_WRITEABLE;
mtd_part++;
names += NAME_LEN_MAX;
strncpy(names, NAME_PARTITION_TABLE, NAME_LEN_MAX-1);
mtd_part->name = names;
mtd_part->offset = blocklen;
mtd_part->size = blocklen;
mtd_part->mask_flags = MTD_WRITEABLE;
mtd_part++;
names += NAME_LEN_MAX;
for (i = 0; i < MYLO_MAX_PARTITIONS; i++) {
part = &tab->partitions[i];
if (le16_to_cpu(part->type) == PARTITION_TYPE_FREE)
continue;
sprintf(names, "partition%d", i);
mtd_part->offset = le32_to_cpu(part->addr);
mtd_part->size = le32_to_cpu(part->size);
mtd_part->name = names;
mtd_part++;
names += NAME_LEN_MAX;
}
*pparts = mtd_parts;
ret = num_parts;
out_free_buf:
vfree(tab);
out:
return ret;
}
static struct mtd_part_parser mylo_mtd_parser = {
.owner = THIS_MODULE,
.parse_fn = parse_myloader_partitions,
.name = NAME_MYLOADER,
};
static int __init mylo_mtd_parser_init(void)
{
return register_mtd_parser(&mylo_mtd_parser);
}
static void __exit mylo_mtd_parser_exit(void)
{
deregister_mtd_parser(&mylo_mtd_parser);
}
module_init(mylo_mtd_parser_init);
module_exit(mylo_mtd_parser_exit);
MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
MODULE_DESCRIPTION("Parsing code for MyLoader partition tables");
MODULE_LICENSE("GPL");

View File

@@ -0,0 +1,207 @@
/*==============================================================================*/
/* rbmipsnand.c */
/* This module is derived from the 2.4 driver shipped by Microtik for their */
/* Routerboard 1xx and 5xx series boards. It provides support for the built in */
/* NAND flash on the Routerboard 1xx series boards for Linux 2.6.19+. */
/* Licence: Original Microtik code seems not to have a licence. */
/* Rewritten code all GPL V2. */
/* Copyright(C) 2007 david.goodenough@linkchoose.co.uk (for rewriten code) */
/*==============================================================================*/
#include <linux/io.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/mtd/nand.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/delay.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/bootinfo.h>
#include <asm/mach-adm5120/adm5120_info.h>
#include <asm/mach-adm5120/adm5120_defs.h>
#define SMEM1(x) (*((volatile unsigned char *) (KSEG1ADDR(ADM5120_SRAM1_BASE) + x)))
#define NAND_RW_REG 0x0 //data register
#define NAND_SET_CEn 0x1 //CE# low
#define NAND_CLR_CEn 0x2 //CE# high
#define NAND_CLR_CLE 0x3 //CLE low
#define NAND_SET_CLE 0x4 //CLE high
#define NAND_CLR_ALE 0x5 //ALE low
#define NAND_SET_ALE 0x6 //ALE high
#define NAND_SET_SPn 0x7 //SP# low (use spare area)
#define NAND_CLR_SPn 0x8 //SP# high (do not use spare area)
#define NAND_SET_WPn 0x9 //WP# low
#define NAND_CLR_WPn 0xA //WP# high
#define NAND_STS_REG 0xB //Status register
#define MEM32(x) *((volatile unsigned *) (x))
static struct mtd_partition partition_info[] = {
{
name: "RouterBoard NAND Boot",
offset: 0,
size: 4 * 1024 * 1024
},
{
name: "rootfs",
offset: MTDPART_OFS_NXTBLK,
size: MTDPART_SIZ_FULL
}
};
static struct nand_ecclayout rb_ecclayout = {
.eccbytes = 6,
.eccpos = { 8, 9, 10, 13, 14, 15 },
.oobavail = 9,
.oobfree = { { 0, 4 }, { 6, 2 }, { 11, 2 }, { 4, 1} }
};
struct adm5120_nand_info {
struct nand_chip chip;
struct mtd_info mtd;
void __iomem *io_base;
#ifdef CONFIG_MTD_PARTITIONS
int nr_parts;
struct mtd_partition *parts;
#endif
unsigned int init_ok;
};
static int rb100_dev_ready(struct mtd_info *mtd)
{
return SMEM1(NAND_STS_REG) & 0x80;
}
static void rbmips_hwcontrol100(struct mtd_info *mtd, int cmd, unsigned int ctrl)
{
struct nand_chip *chip = mtd->priv;
if (ctrl & NAND_CTRL_CHANGE)
{
SMEM1((( ctrl & NAND_CLE) ? NAND_SET_CLE : NAND_CLR_CLE)) = 0x01;
SMEM1((( ctrl & NAND_ALE) ? NAND_SET_ALE : NAND_CLR_ALE)) = 0x01;
SMEM1((( ctrl & NAND_NCE) ? NAND_SET_CEn : NAND_CLR_CEn)) = 0x01;
}
if (cmd != NAND_CMD_NONE)
writeb( cmd, chip->IO_ADDR_W);
}
/*========================================================================*/
/* We need to use the OLD Yaffs-1 OOB layout, otherwise the RB bootloader */
/* will not be able to find the kernel that we load. So set the oobinfo */
/* when creating the partitions. */
/*========================================================================*/
unsigned get_rbnand_block_size(struct adm5120_nand_info *data)
{
return data->init_ok ? data->mtd.writesize : 0;
}
EXPORT_SYMBOL(get_rbnand_block_size);
static int rbmips_probe(struct platform_device *pdev)
{
struct adm5120_nand_info *data;
int res = 0;
/* Allocate memory for the nand_chip structure */
data = kzalloc(sizeof(*data), GFP_KERNEL);
if (!data) {
dev_err(&pdev->dev, "Failed to allocate device structure\n");
return -ENOMEM;
}
data->io_base = ioremap(pdev->resource[0].start, pdev->resource[0].end - pdev->resource[0].start + 1);
if (data->io_base == NULL) {
dev_err(&pdev->dev, "ioremap failed\n");
kfree(data);
return -EIO;
}
MEM32(0xB2000064) = 0x100;
MEM32(0xB2000008) = 0x1;
SMEM1(NAND_SET_SPn) = 0x01;
SMEM1(NAND_CLR_WPn) = 0x01;
data->chip.priv = &data;
data->mtd.priv = &data->chip;
data->mtd.owner = THIS_MODULE;
data->init_ok = 0;
data->chip.IO_ADDR_R = (unsigned char *)KSEG1ADDR(ADM5120_SRAM1_BASE);
data->chip.IO_ADDR_W = data->chip.IO_ADDR_R;
data->chip.cmd_ctrl = rbmips_hwcontrol100;
data->chip.dev_ready = rb100_dev_ready;
data->chip.ecc.mode = NAND_ECC_SOFT;
data->chip.ecc.layout = &rb_ecclayout;
data->chip.chip_delay = 25;
data->chip.options |= NAND_NO_AUTOINCR;
platform_set_drvdata(pdev, data);
/* Why do we need to scan 4 times ? */
if (nand_scan(&data->mtd, 1) && nand_scan(&data->mtd, 1) && nand_scan(&data->mtd, 1) && nand_scan(&data->mtd, 1)) {
printk(KERN_INFO "RB1xxx nand device not found\n");
res = -ENXIO;
goto out;
}
add_mtd_partitions(&data->mtd, partition_info, 2);
data->init_ok = 1;
res = add_mtd_device(&data->mtd);
if (!res)
return res;
nand_release(&data->mtd);
out:
platform_set_drvdata(pdev, NULL);
iounmap(data->io_base);
kfree(data);
return res;
}
static int __devexit rbmips_remove(struct platform_device *pdev)
{
struct adm5120_nand_info *data = platform_get_drvdata(pdev);
nand_release(&data->mtd);
iounmap(data->io_base);
kfree(data);
return 0;
}
static struct platform_driver adm5120_nand_driver = {
.probe = rbmips_probe,
.remove = rbmips_remove,
.driver = {
.name = "adm5120-nand",
.owner = THIS_MODULE,
},
};
static int __init adm5120_nand_init(void)
{
int err;
err = platform_driver_register(&adm5120_nand_driver);
return err;
}
static void __exit adm5120_nand_exit(void)
{
platform_driver_unregister(&adm5120_nand_driver);
}
module_init(adm5120_nand_init);
module_exit(adm5120_nand_exit);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("David Goodenough, Florian Fainelli");
MODULE_DESCRIPTION("RouterBOARD 100 NAND driver");

View File

@@ -0,0 +1,625 @@
/*
* ADM5120 built in ethernet switch driver
*
* Copyright Jeroen Vreeken (pe1rxq@amsat.org), 2005
*
* Inspiration for this driver came from the original ADMtek 2.4
* driver, Copyright ADMtek Inc.
*
* NAPI extensions by Thomas Langer (Thomas.Langer@infineon.com)
* and Friedrich Beckmann (Friedrich.Beckmann@infineon.com), 2007
*
* TODO: Add support of high prio queues (currently disabled)
*
*/
#include <linux/autoconf.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/errno.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <asm/mipsregs.h>
#include <asm/irq.h>
#include <asm/io.h>
#include "adm5120sw.h"
#include <asm/mach-adm5120/adm5120_info.h>
#include <asm/mach-adm5120/adm5120_irq.h>
MODULE_AUTHOR("Jeroen Vreeken (pe1rxq@amsat.org)");
MODULE_DESCRIPTION("ADM5120 ethernet switch driver");
MODULE_LICENSE("GPL");
/* default settings - unlimited TX and RX on all ports, default shaper mode */
static unsigned char bw_matrix[SW_DEVS] = {
0, 0, 0, 0, 0, 0
};
static int adm5120_nrdevs;
static struct net_device *adm5120_devs[SW_DEVS];
/* Lookup table port -> device */
static struct net_device *adm5120_port[SW_DEVS];
static struct adm5120_dma
adm5120_dma_txh_v[ADM5120_DMA_TXH] __attribute__((aligned(16))),
adm5120_dma_txl_v[ADM5120_DMA_TXL] __attribute__((aligned(16))),
adm5120_dma_rxh_v[ADM5120_DMA_RXH] __attribute__((aligned(16))),
adm5120_dma_rxl_v[ADM5120_DMA_RXL] __attribute__((aligned(16))),
*adm5120_dma_txh,
*adm5120_dma_txl,
*adm5120_dma_rxh,
*adm5120_dma_rxl;
static struct sk_buff
*adm5120_skb_rxh[ADM5120_DMA_RXH],
*adm5120_skb_rxl[ADM5120_DMA_RXL],
*adm5120_skb_txh[ADM5120_DMA_TXH],
*adm5120_skb_txl[ADM5120_DMA_TXL];
static int adm5120_rxli = 0;
static int adm5120_txli = 0;
/*static int adm5120_txhi = 0;*/
static int adm5120_if_open = 0;
static inline void adm5120_set_reg(unsigned int reg, unsigned long val)
{
*(volatile unsigned long*)(SW_BASE+reg) = val;
}
static inline unsigned long adm5120_get_reg(unsigned int reg)
{
return *(volatile unsigned long*)(SW_BASE+reg);
}
static inline void adm5120_rx_dma_update(struct adm5120_dma *dma,
struct sk_buff *skb, int end)
{
dma->status = 0;
dma->cntl = 0;
dma->len = ADM5120_DMA_RXSIZE;
dma->data = ADM5120_DMA_ADDR(skb->data) |
ADM5120_DMA_OWN | (end ? ADM5120_DMA_RINGEND : 0);
}
static int adm5120_rx(struct net_device *dev,int *budget)
{
struct sk_buff *skb, *skbn;
struct adm5120_sw *priv;
struct net_device *cdev;
struct adm5120_dma *dma;
int port, len, quota;
quota = min(dev->quota, *budget);
dma = &adm5120_dma_rxl[adm5120_rxli];
while (!(dma->data & ADM5120_DMA_OWN) && quota) {
port = (dma->status & ADM5120_DMA_PORTID);
port >>= ADM5120_DMA_PORTSHIFT;
cdev = adm5120_port[port];
if (cdev != dev) { /* The current packet belongs to a different device */
if ((cdev==NULL) || !netif_running(cdev)) {
/* discard (update with old skb) */
skb = skbn = NULL;
goto rx_skip;
}
else {
netif_rx_schedule(cdev);/* Start polling next device */
return 1; /* return 1 -> More packets to process */
}
}
skb = adm5120_skb_rxl[adm5120_rxli];
len = (dma->status & ADM5120_DMA_LEN);
len >>= ADM5120_DMA_LENSHIFT;
len -= ETH_FCS;
priv = netdev_priv(dev);
if (len <= 0 || len > ADM5120_DMA_RXSIZE ||
dma->status & ADM5120_DMA_FCSERR) {
priv->stats.rx_errors++;
skbn = NULL;
} else {
skbn = dev_alloc_skb(ADM5120_DMA_RXSIZE+16);
if (skbn) {
skb_put(skb, len);
skb->dev = dev;
skb->protocol = eth_type_trans(skb, dev);
skb->ip_summed = CHECKSUM_UNNECESSARY;
dev->last_rx = jiffies;
priv->stats.rx_packets++;
priv->stats.rx_bytes += len;
skb_reserve(skbn, NET_IP_ALIGN);
adm5120_skb_rxl[adm5120_rxli] = skbn;
} else {
printk(KERN_INFO "%s recycling!\n", dev->name);
}
}
rx_skip:
adm5120_rx_dma_update(&adm5120_dma_rxl[adm5120_rxli],
adm5120_skb_rxl[adm5120_rxli],
(ADM5120_DMA_RXL-1==adm5120_rxli));
if (ADM5120_DMA_RXL == ++adm5120_rxli)
adm5120_rxli = 0;
dma = &adm5120_dma_rxl[adm5120_rxli];
if (skbn){
netif_receive_skb(skb);
dev->quota--;
(*budget)--;
quota--;
}
} /* while */
/* If there are still packets to process, return 1 */
if (quota){
/* No more packets to process, so disable the polling and reenable the interrupts */
netif_rx_complete(dev);
adm5120_set_reg(ADM5120_INT_MASK,
adm5120_get_reg(ADM5120_INT_MASK) &
~(ADM5120_INT_RXL|ADM5120_INT_LFULL));
return 0;
}
return 1;
}
static irqreturn_t adm5120_sw_irq(int irq, void *dev_id)
{
unsigned long intreg, intmask;
int port;
struct net_device *dev;
intmask = adm5120_get_reg(ADM5120_INT_MASK); /* Remember interrupt mask */
adm5120_set_reg(ADM5120_INT_MASK, ADM5120_INTMASKALL); /* Disable interrupts */
intreg = adm5120_get_reg(ADM5120_INT_ST); /* Read interrupt status */
adm5120_set_reg(ADM5120_INT_ST, intreg); /* Clear interrupt status */
/* In NAPI operation the interrupts are disabled and the polling mechanism
* is activated. The interrupts are finally enabled again in the polling routine.
*/
if (intreg & (ADM5120_INT_RXL|ADM5120_INT_LFULL)) {
/* check rx buffer for port number */
port = adm5120_dma_rxl[adm5120_rxli].status & ADM5120_DMA_PORTID;
port >>= ADM5120_DMA_PORTSHIFT;
dev = adm5120_port[port];
if ((dev==NULL) || !netif_running(dev)) {
/* discard (update with old skb) */
adm5120_rx_dma_update(&adm5120_dma_rxl[adm5120_rxli],
adm5120_skb_rxl[adm5120_rxli],
(ADM5120_DMA_RXL-1==adm5120_rxli));
if (ADM5120_DMA_RXL == ++adm5120_rxli)
adm5120_rxli = 0;
}
else {
netif_rx_schedule(dev);
intmask |= (ADM5120_INT_RXL|ADM5120_INT_LFULL); /* Disable RX interrupts */
}
}
#ifdef CONFIG_DEBUG
if (intreg & ~(intmask))
printk(KERN_INFO "adm5120sw: IRQ 0x%08X unexpected!\n", (unsigned int)(intreg & ~(intmask)));
#endif
adm5120_set_reg(ADM5120_INT_MASK, intmask);
return IRQ_HANDLED;
}
static void adm5120_set_vlan(char *matrix)
{
unsigned long val;
int vlan_port, port;
val = matrix[0] + (matrix[1]<<8) + (matrix[2]<<16) + (matrix[3]<<24);
adm5120_set_reg(ADM5120_VLAN_GI, val);
val = matrix[4] + (matrix[5]<<8);
adm5120_set_reg(ADM5120_VLAN_GII, val);
/* Now set/update the port vs. device lookup table */
for (port=0; port<SW_DEVS; port++) {
for (vlan_port=0; vlan_port<SW_DEVS && !(matrix[vlan_port] & (0x00000001 << port)); vlan_port++);
if (vlan_port <SW_DEVS)
adm5120_port[port] = adm5120_devs[vlan_port];
else
adm5120_port[port] = NULL;
}
}
static void adm5120_set_bw(char *matrix)
{
unsigned long val;
/* Port 0 to 3 are set using the bandwidth control 0 register */
val = matrix[0] + (matrix[1]<<8) + (matrix[2]<<16) + (matrix[3]<<24);
adm5120_set_reg(ADM5120_BW_CTL0, val);
/* Port 4 and 5 are set using the bandwidth control 1 register */
val = matrix[4];
if (matrix[5] == 1)
adm5120_set_reg(ADM5120_BW_CTL1, val | 0x80000000);
else
adm5120_set_reg(ADM5120_BW_CTL1, val & ~0x8000000);
printk(KERN_DEBUG "D: ctl0 0x%lx, ctl1 0x%lx\n",
adm5120_get_reg(ADM5120_BW_CTL0),
adm5120_get_reg(ADM5120_BW_CTL1));
}
static int adm5120_sw_open(struct net_device *dev)
{
unsigned long val;
int i;
netif_start_queue(dev);
if (!adm5120_if_open++) {
/* enable interrupts on first open */
adm5120_set_reg(ADM5120_INT_MASK,
adm5120_get_reg(ADM5120_INT_MASK) &
~(ADM5120_INT_RXL|ADM5120_INT_LFULL));
}
/* enable (additional) port */
val = adm5120_get_reg(ADM5120_PORT_CONF0);
for (i=0; i<SW_DEVS; i++) {
if (dev == adm5120_devs[i])
val &= ~adm5120_eth_vlans[i];
}
adm5120_set_reg(ADM5120_PORT_CONF0, val);
return 0;
}
static int adm5120_sw_stop(struct net_device *dev)
{
unsigned long val;
int i;
if (!--adm5120_if_open) {
adm5120_set_reg(ADM5120_INT_MASK, ADM5120_INTMASKALL);
}
/* disable port if not assigned to other devices */
val = adm5120_get_reg(ADM5120_PORT_CONF0) | ADM5120_PORTDISALL;
for (i=0; i<SW_DEVS; i++) {
if ((dev != adm5120_devs[i]) && netif_running(adm5120_devs[i]))
val &= ~adm5120_eth_vlans[i];
}
adm5120_set_reg(ADM5120_PORT_CONF0, val);
netif_stop_queue(dev);
return 0;
}
static int adm5120_sw_tx(struct sk_buff *skb, struct net_device *dev)
{
struct adm5120_dma *dma;
struct sk_buff **skbl = adm5120_skb_txl;
struct adm5120_sw *priv = netdev_priv(dev);
unsigned long data;
dev->trans_start = jiffies;
dma = &adm5120_dma_txl[adm5120_txli];
if (dma->data & ADM5120_DMA_OWN) {
/* We want to write a packet but the TX queue is still
* occupied by the DMA. We are faster than the DMA... */
dev_kfree_skb(skb);
priv->stats.tx_dropped++;
return 0;
}
data = ADM5120_DMA_ADDR(skb->data) | ADM5120_DMA_OWN;
if (adm5120_txli == ADM5120_DMA_TXL-1)
data |= ADM5120_DMA_RINGEND;
dma->status =
((skb->len<ETH_ZLEN?ETH_ZLEN:skb->len) << ADM5120_DMA_LENSHIFT) |
(0x1 << priv->port);
dma->len = skb->len < ETH_ZLEN ? ETH_ZLEN : skb->len;
priv->stats.tx_packets++;
priv->stats.tx_bytes += skb->len;
/* free old skbs here instead of tx completion interrupt:
* will hold some more memory allocated but reduces interrupts */
if (skbl[adm5120_txli]){
dev_kfree_skb(skbl[adm5120_txli]);
}
skbl[adm5120_txli] = skb;
dma->data = data; /* Here we enable the buffer for the TX DMA machine */
adm5120_set_reg(ADM5120_SEND_TRIG, ADM5120_SEND_TRIG_L);
if (++adm5120_txli == ADM5120_DMA_TXL)
adm5120_txli = 0;
return 0;
}
static void adm5120_tx_timeout(struct net_device *dev)
{
printk(KERN_INFO "%s: TX timeout\n",dev->name);
}
static struct net_device_stats *adm5120_sw_stats(struct net_device *dev)
{
struct adm5120_sw *priv = netdev_priv(dev);
int portmask;
unsigned long adm5120_cpup_conf_reg;
portmask = adm5120_eth_vlans[priv->port] & 0x3f;
adm5120_cpup_conf_reg = adm5120_get_reg(ADM5120_CPUP_CONF);
if (dev->flags & IFF_PROMISC)
adm5120_cpup_conf_reg &= ~((portmask << ADM5120_DISUNSHIFT) & ADM5120_DISUNALL);
else
adm5120_cpup_conf_reg |= (portmask << ADM5120_DISUNSHIFT);
if (dev->flags & IFF_PROMISC || dev->flags & IFF_ALLMULTI || dev->mc_count)
adm5120_cpup_conf_reg &= ~((portmask << ADM5120_DISMCSHIFT) & ADM5120_DISMCALL);
else
adm5120_cpup_conf_reg |= (portmask << ADM5120_DISMCSHIFT);
/* If there is any port configured to be in promiscuous mode, then the */
/* Bridge Test Mode has to be activated. This will result in */
/* transporting also packets learned in another VLAN to be forwarded */
/* to the CPU. */
/* The difficult scenario is when we want to build a bridge on the CPU.*/
/* Assume we have port0 and the CPU port in VLAN0 and port1 and the */
/* CPU port in VLAN1. Now we build a bridge on the CPU between */
/* VLAN0 and VLAN1. Both ports of the VLANs are set in promisc mode. */
/* Now assume a packet with ethernet source address 99 enters port 0 */
/* It will be forwarded to the CPU because it is unknown. Then the */
/* bridge in the CPU will send it to VLAN1 and it goes out at port 1. */
/* When now a packet with ethernet destination address 99 comes in at */
/* port 1 in VLAN1, then the switch has learned that this address is */
/* located at port 0 in VLAN0. Therefore the switch will drop */
/* this packet. In order to avoid this and to send the packet still */
/* to the CPU, the Bridge Test Mode has to be activated. */
/* Check if there is any vlan in promisc mode. */
if (~adm5120_cpup_conf_reg & ADM5120_DISUNALL)
adm5120_cpup_conf_reg |= ADM5120_BTM; /* Set the BTM */
else
adm5120_cpup_conf_reg &= ~ADM5120_BTM; /* Disable the BTM */
adm5120_set_reg(ADM5120_CPUP_CONF,adm5120_cpup_conf_reg);
return &((struct adm5120_sw *)netdev_priv(dev))->stats;
}
static void adm5120_set_multicast_list(struct net_device *dev)
{
struct adm5120_sw *priv = netdev_priv(dev);
int portmask;
portmask = adm5120_eth_vlans[priv->port] & 0x3f;
if (dev->flags & IFF_PROMISC)
adm5120_set_reg(ADM5120_CPUP_CONF,
adm5120_get_reg(ADM5120_CPUP_CONF) &
~((portmask << ADM5120_DISUNSHIFT) & ADM5120_DISUNALL));
else
adm5120_set_reg(ADM5120_CPUP_CONF,
adm5120_get_reg(ADM5120_CPUP_CONF) |
(portmask << ADM5120_DISUNSHIFT));
if (dev->flags & IFF_PROMISC || dev->flags & IFF_ALLMULTI ||
dev->mc_count)
adm5120_set_reg(ADM5120_CPUP_CONF,
adm5120_get_reg(ADM5120_CPUP_CONF) &
~((portmask << ADM5120_DISMCSHIFT) & ADM5120_DISMCALL));
else
adm5120_set_reg(ADM5120_CPUP_CONF,
adm5120_get_reg(ADM5120_CPUP_CONF) |
(portmask << ADM5120_DISMCSHIFT));
}
static void adm5120_write_mac(struct net_device *dev)
{
struct adm5120_sw *priv = netdev_priv(dev);
unsigned char *mac = dev->dev_addr;
adm5120_set_reg(ADM5120_MAC_WT1,
mac[2] | (mac[3]<<8) | (mac[4]<<16) | (mac[5]<<24));
adm5120_set_reg(ADM5120_MAC_WT0, (priv->port<<3) |
(mac[0]<<16) | (mac[1]<<24) | ADM5120_MAC_WRITE | ADM5120_VLAN_EN);
while (!(adm5120_get_reg(ADM5120_MAC_WT0) & ADM5120_MAC_WRITE_DONE));
}
static int adm5120_sw_set_mac_address(struct net_device *dev, void *p)
{
struct sockaddr *addr = p;
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
adm5120_write_mac(dev);
return 0;
}
static int adm5120_do_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
{
int err;
struct adm5120_sw_info info;
struct adm5120_sw *priv = netdev_priv(dev);
switch(cmd) {
case SIOCGADMINFO:
info.magic = 0x5120;
info.ports = adm5120_nrdevs;
info.vlan = priv->port;
err = copy_to_user(rq->ifr_data, &info, sizeof(info));
if (err)
return -EFAULT;
break;
case SIOCSMATRIX:
if (!capable(CAP_NET_ADMIN))
return -EPERM;
err = copy_from_user(adm5120_eth_vlans, rq->ifr_data,
sizeof(adm5120_eth_vlans));
if (err)
return -EFAULT;
adm5120_set_vlan(adm5120_eth_vlans);
break;
case SIOCGMATRIX:
err = copy_to_user(rq->ifr_data, adm5120_eth_vlans,
sizeof(adm5120_eth_vlans));
if (err)
return -EFAULT;
break;
case SIOCGETBW:
err = copy_to_user(rq->ifr_data, bw_matrix, sizeof(bw_matrix));
if (err)
return -EFAULT;
break;
case SIOCSETBW:
if (!capable(CAP_NET_ADMIN))
return -EPERM;
err = copy_from_user(bw_matrix, rq->ifr_data, sizeof(bw_matrix));
if (err)
return -EFAULT;
adm5120_set_bw(bw_matrix);
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static void adm5120_dma_tx_init(struct adm5120_dma *dma, struct sk_buff **skbl,
int num)
{
memset(dma, 0, sizeof(struct adm5120_dma)*num);
dma[num-1].data |= ADM5120_DMA_RINGEND;
memset(skbl, 0, sizeof(struct skb*)*num);
}
static void adm5120_dma_rx_init(struct adm5120_dma *dma, struct sk_buff **skbl,
int num)
{
int i;
memset(dma, 0, sizeof(struct adm5120_dma)*num);
for (i=0; i<num; i++) {
skbl[i] = dev_alloc_skb(ADM5120_DMA_RXSIZE+16);
if (!skbl[i]) {
i=num;
break;
}
skb_reserve(skbl[i], NET_IP_ALIGN);
adm5120_rx_dma_update(&dma[i], skbl[i], (num-1==i));
}
}
static int __init adm5120_sw_init(void)
{
int i, err;
struct net_device *dev;
err = request_irq(ADM5120_IRQ_SWITCH, adm5120_sw_irq, 0, "ethernet switch", NULL);
if (err)
goto out;
adm5120_nrdevs = adm5120_eth_num_ports;
adm5120_set_reg(ADM5120_CPUP_CONF,
ADM5120_DISCCPUPORT | ADM5120_CRC_PADDING |
ADM5120_DISUNALL | ADM5120_DISMCALL);
adm5120_set_reg(ADM5120_PORT_CONF0, ADM5120_ENMC | ADM5120_ENBP | ADM5120_PORTDISALL);
adm5120_set_reg(ADM5120_PHY_CNTL2, adm5120_get_reg(ADM5120_PHY_CNTL2) |
ADM5120_AUTONEG | ADM5120_NORMAL | ADM5120_AUTOMDIX);
adm5120_set_reg(ADM5120_PHY_CNTL3, adm5120_get_reg(ADM5120_PHY_CNTL3) |
ADM5120_PHY_NTH);
/* Force all the packets from all ports are low priority */
adm5120_set_reg(ADM5120_PRI_CNTL, 0);
adm5120_set_reg(ADM5120_INT_MASK, ADM5120_INTMASKALL);
adm5120_set_reg(ADM5120_INT_ST, ADM5120_INTMASKALL);
adm5120_dma_txh = (void *)KSEG1ADDR((u32)adm5120_dma_txh_v);
adm5120_dma_txl = (void *)KSEG1ADDR((u32)adm5120_dma_txl_v);
adm5120_dma_rxh = (void *)KSEG1ADDR((u32)adm5120_dma_rxh_v);
adm5120_dma_rxl = (void *)KSEG1ADDR((u32)adm5120_dma_rxl_v);
adm5120_dma_tx_init(adm5120_dma_txh, adm5120_skb_txh, ADM5120_DMA_TXH);
adm5120_dma_tx_init(adm5120_dma_txl, adm5120_skb_txl, ADM5120_DMA_TXL);
adm5120_dma_rx_init(adm5120_dma_rxh, adm5120_skb_rxh, ADM5120_DMA_RXH);
adm5120_dma_rx_init(adm5120_dma_rxl, adm5120_skb_rxl, ADM5120_DMA_RXL);
adm5120_set_reg(ADM5120_SEND_HBADDR, KSEG1ADDR(adm5120_dma_txh));
adm5120_set_reg(ADM5120_SEND_LBADDR, KSEG1ADDR(adm5120_dma_txl));
adm5120_set_reg(ADM5120_RECEIVE_HBADDR, KSEG1ADDR(adm5120_dma_rxh));
adm5120_set_reg(ADM5120_RECEIVE_LBADDR, KSEG1ADDR(adm5120_dma_rxl));
for (i = 0; i < SW_DEVS; i++) {
adm5120_devs[i] = alloc_etherdev(sizeof(struct adm5120_sw));
if (!adm5120_devs[i]) {
err = -ENOMEM;
goto out_int;
}
dev = adm5120_devs[i];
SET_MODULE_OWNER(dev);
memset(netdev_priv(dev), 0, sizeof(struct adm5120_sw));
((struct adm5120_sw*)netdev_priv(dev))->port = i;
dev->base_addr = SW_BASE;
dev->irq = ADM5120_IRQ_SWITCH;
dev->open = adm5120_sw_open;
dev->hard_start_xmit = adm5120_sw_tx;
dev->stop = adm5120_sw_stop;
dev->get_stats = adm5120_sw_stats;
dev->set_multicast_list = adm5120_set_multicast_list;
dev->do_ioctl = adm5120_do_ioctl;
dev->tx_timeout = adm5120_tx_timeout;
dev->watchdog_timeo = ETH_TX_TIMEOUT;
dev->set_mac_address = adm5120_sw_set_mac_address;
dev->poll = adm5120_rx;
dev->weight = 64;
memcpy(dev->dev_addr, adm5120_eth_macs[i], 6);
adm5120_write_mac(dev);
if ((err = register_netdev(dev))) {
free_netdev(dev);
goto out_int;
}
printk(KERN_INFO "%s: ADM5120 switch port%d\n", dev->name, i);
}
/* setup vlan/port mapping after devs are filled up */
adm5120_set_vlan(adm5120_eth_vlans);
adm5120_set_reg(ADM5120_CPUP_CONF,
ADM5120_CRC_PADDING | ADM5120_DISUNALL | ADM5120_DISMCALL);
return 0;
out_int:
/* Undo everything that did succeed */
for (; i; i--) {
unregister_netdev(adm5120_devs[i-1]);
free_netdev(adm5120_devs[i-1]);
}
free_irq(ADM5120_IRQ_SWITCH, NULL);
out:
printk(KERN_ERR "ADM5120 Ethernet switch init failed\n");
return err;
}
static void __exit adm5120_sw_exit(void)
{
int i;
for (i = 0; i < SW_DEVS; i++) {
unregister_netdev(adm5120_devs[i]);
free_netdev(adm5120_devs[i]);
}
free_irq(ADM5120_IRQ_SWITCH, NULL);
for (i = 0; i < ADM5120_DMA_RXH; i++) {
if (!adm5120_skb_rxh[i])
break;
kfree_skb(adm5120_skb_rxh[i]);
}
for (i = 0; i < ADM5120_DMA_RXL; i++) {
if (!adm5120_skb_rxl[i])
break;
kfree_skb(adm5120_skb_rxl[i]);
}
}
module_init(adm5120_sw_init);
module_exit(adm5120_sw_exit);

View File

@@ -0,0 +1,114 @@
/*
* Defines for ADM5120 built in ethernet switch driver
*
* Copyright Jeroen Vreeken (pe1rxq@amsat.org), 2005
*
* Values come from ADM5120 datasheet and original ADMtek 2.4 driver,
* Copyright ADMtek Inc.
*/
#ifndef _INCLUDE_ADM5120SW_H_
#define _INCLUDE_ADM5120SW_H_
#define SW_BASE KSEG1ADDR(0x12000000)
#define SW_DEVS 6
#define ETH_TX_TIMEOUT HZ*400
#define ETH_FCS 4;
#define ADM5120_CODE 0x00 /* CPU description */
#define ADM5120_CODE_PQFP 0x20000000 /* package type */
#define ADM5120_SW_CONF 0x20 /* Switch configuration register */
#define ADM5120_SW_CONF_BPM 0x00300000 /* Mask for backpressure mode */
#define ADM5120_CPUP_CONF 0x24 /* CPU port config */
#define ADM5120_DISCCPUPORT 0x00000001 /* disable cpu port */
#define ADM5120_CRC_PADDING 0x00000002 /* software crc */
#define ADM5120_BTM 0x00000004 /* bridge test mode */
#define ADM5120_DISUNSHIFT 9
#define ADM5120_DISUNALL 0x00007e00 /* disable unknown from all */
#define ADM5120_DISMCSHIFT 16
#define ADM5120_DISMCALL 0x003f0000 /* disable multicast from all */
#define ADM5120_PORT_CONF0 0x28
#define ADM5120_ENMC 0x00003f00 /* Enable MC routing (ex cpu) */
#define ADM5120_ENBP 0x003f0000 /* Enable Back Pressure */
#define ADM5120_PORTDISALL 0x0000003F
#define ADM5120_VLAN_GI 0x40 /* VLAN settings */
#define ADM5120_VLAN_GII 0x44
#define ADM5120_SEND_TRIG 0x48
#define ADM5120_SEND_TRIG_L 0x00000001
#define ADM5120_SEND_TRIG_H 0x00000002
#define ADM5120_MAC_WT0 0x58
#define ADM5120_MAC_WRITE 0x00000001
#define ADM5120_MAC_WRITE_DONE 0x00000002
#define ADM5120_VLAN_EN 0x00000040
#define ADM5120_MAC_WT1 0x5c
#define ADM5120_BW_CTL0 0x60 /* Bandwidth control 0 */
#define ADM5120_BW_CTL1 0x64 /* Bandwidth control 1 */
#define ADM5120_PHY_CNTL2 0x7c
#define ADM5120_AUTONEG 0x0000001f /* Auto negotiate */
#define ADM5120_NORMAL 0x01f00000 /* PHY normal mode */
#define ADM5120_AUTOMDIX 0x3e000000 /* Auto MDIX */
#define ADM5120_PHY_CNTL3 0x80
#define ADM5120_PHY_NTH 0x00000400
#define ADM5120_PRI_CNTL 0x84
#define ADM5120_INT_ST 0xb0
#define ADM5120_INT_RXH 0x0000004
#define ADM5120_INT_RXL 0x0000008
#define ADM5120_INT_HFULL 0x0000010
#define ADM5120_INT_LFULL 0x0000020
#define ADM5120_INT_TXH 0x0000001
#define ADM5120_INT_TXL 0x0000002
#define ADM5120_INT_MASK 0xb4
#define ADM5120_INTMASKALL 0x1FDEFFF /* All interrupts */
#define ADM5120_INTHANDLE (ADM5120_INT_RXH | ADM5120_INT_RXL | \
ADM5120_INT_HFULL | ADM5120_INT_LFULL | \
ADM5120_INT_TXH | ADM5120_INT_TXL)
#define ADM5120_SEND_HBADDR 0xd0
#define ADM5120_SEND_LBADDR 0xd4
#define ADM5120_RECEIVE_HBADDR 0xd8
#define ADM5120_RECEIVE_LBADDR 0xdc
struct adm5120_dma {
u32 data;
u32 cntl;
u32 len;
u32 status;
} __attribute__ ((packed));
#define ADM5120_DMA_MASK 0x01ffffff
#define ADM5120_DMA_OWN 0x80000000 /* buffer owner */
#define ADM5120_DMA_RINGEND 0x10000000 /* Last in DMA ring */
#define ADM5120_DMA_ADDR(ptr) ((u32)(ptr) & ADM5120_DMA_MASK)
#define ADM5120_DMA_PORTID 0x00007000
#define ADM5120_DMA_PORTSHIFT 12
#define ADM5120_DMA_LEN 0x07ff0000
#define ADM5120_DMA_LENSHIFT 16
#define ADM5120_DMA_FCSERR 0x00000008
#define ADM5120_DMA_TXH 2
#define ADM5120_DMA_TXL 64
#define ADM5120_DMA_RXH 2
#define ADM5120_DMA_RXL 64
#define ADM5120_DMA_RXSIZE 1550
#define ADM5120_DMA_EXTRA 20
struct adm5120_sw {
int port;
struct net_device_stats stats;
};
#define SIOCSMATRIX SIOCDEVPRIVATE
#define SIOCGMATRIX SIOCDEVPRIVATE+1
#define SIOCGADMINFO SIOCDEVPRIVATE+2
#define SIOCGETBW SIOCDEVPRIVATE+3
#define SIOCSETBW SIOCDEVPRIVATE+4
struct adm5120_sw_info {
u16 magic;
u16 ports;
u16 vlan;
};
#endif /* _INCLUDE_ADM5120SW_H_ */

View File

@@ -0,0 +1,520 @@
/*
* Serial driver for ADM5120 SoC
*
* Derived from drivers/serial/uart00.c
* Copyright 2001 Altera Corporation
*
* Some pieces are derived from the ADMtek 2.4 serial driver.
* Copyright (C) ADMtek Incorporated, 2003
* daniell@admtek.com.tw
* Which again was derived from drivers/char/serial.c
* Copyright (C) Linus Torvalds et al.
*
* Copyright Jeroen Vreeken (pe1rxq@amsat.org), 2005
*/
#include <linux/autoconf.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/ioport.h>
#include <linux/serial.h>
#include <linux/serial_core.h>
#include <linux/tty.h>
#include <linux/tty_flip.h>
#include <linux/console.h>
#include <asm/mach-adm5120/adm5120_defs.h>
#include <asm/mach-adm5120/adm5120_irq.h>
#define ADM5120_UART_REG(base, reg) \
(*(volatile u32 *)KSEG1ADDR((base)+(reg)))
#define ADM5120_UARTCLK_FREQ 62500000
#define ADM5120_UART_BAUDDIV(rate) ((unsigned long)(ADM5120_UARTCLK_FREQ/(16*(rate)) - 1))
#define ADM5120_UART_BAUD115200 ADM5120_UART_BAUDDIV(115200)
#define ADM5120_UART_DATA 0x00
#define ADM5120_UART_RS 0x04
#define ADM5120_UART_LCR_H 0x08
#define ADM5120_UART_LCR_M 0x0c
#define ADM5120_UART_LCR_L 0x10
#define ADM5120_UART_CR 0x14
#define ADM5120_UART_FR 0x18
#define ADM5120_UART_IR 0x1c
#define ADM5120_UART_FE 0x01
#define ADM5120_UART_PE 0x02
#define ADM5120_UART_BE 0x04
#define ADM5120_UART_OE 0x08
#define ADM5120_UART_ERR 0x0f
#define ADM5120_UART_FIFO_EN 0x10
#define ADM5120_UART_EN 0x01
#define ADM5120_UART_TIE 0x20
#define ADM5120_UART_RIE 0x50
#define ADM5120_UART_IE 0x78
#define ADM5120_UART_CTS 0x01
#define ADM5120_UART_DSR 0x02
#define ADM5120_UART_DCD 0x04
#define ADM5120_UART_TXFF 0x20
#define ADM5120_UART_TXFE 0x80
#define ADM5120_UART_RXFE 0x10
#define ADM5120_UART_BRK 0x01
#define ADM5120_UART_PEN 0x02
#define ADM5120_UART_EPS 0x04
#define ADM5120_UART_STP2 0x08
#define ADM5120_UART_W5 0x00
#define ADM5120_UART_W6 0x20
#define ADM5120_UART_W7 0x40
#define ADM5120_UART_W8 0x60
#define ADM5120_UART_MIS 0x01
#define ADM5120_UART_RIS 0x02
#define ADM5120_UART_TIS 0x04
#define ADM5120_UART_RTIS 0x08
static void adm5120ser_stop_tx(struct uart_port *port)
{
ADM5120_UART_REG(port->iobase, ADM5120_UART_CR) &= ~ADM5120_UART_TIE;
}
static void adm5120ser_irq_rx(struct uart_port *port)
{
struct tty_struct *tty = port->info->tty;
unsigned int status, ch, rds, flg, ignored = 0;
status = ADM5120_UART_REG(port->iobase, ADM5120_UART_FR);
while (!(status & ADM5120_UART_RXFE)) {
/*
* We need to read rds before reading the
* character from the fifo
*/
rds = ADM5120_UART_REG(port->iobase, ADM5120_UART_RS);
ch = ADM5120_UART_REG(port->iobase, ADM5120_UART_DATA);
port->icount.rx++;
if (tty->low_latency)
tty_flip_buffer_push(tty);
flg = TTY_NORMAL;
/*
* Note that the error handling code is
* out of the main execution path
*/
if (rds & ADM5120_UART_ERR)
goto handle_error;
if (uart_handle_sysrq_char(port, ch))
goto ignore_char;
error_return:
tty_insert_flip_char(tty, ch, flg);
ignore_char:
status = ADM5120_UART_REG(port->iobase, ADM5120_UART_FR);
}
out:
tty_flip_buffer_push(tty);
return;
handle_error:
ADM5120_UART_REG(port->iobase, ADM5120_UART_RS) = 0xff;
if (rds & ADM5120_UART_BE) {
port->icount.brk++;
if (uart_handle_break(port))
goto ignore_char;
} else if (rds & ADM5120_UART_PE)
port->icount.parity++;
else if (rds & ADM5120_UART_FE)
port->icount.frame++;
if (rds & ADM5120_UART_OE)
port->icount.overrun++;
if (rds & port->ignore_status_mask) {
if (++ignored > 100)
goto out;
goto ignore_char;
}
rds &= port->read_status_mask;
if (rds & ADM5120_UART_BE)
flg = TTY_BREAK;
else if (rds & ADM5120_UART_PE)
flg = TTY_PARITY;
else if (rds & ADM5120_UART_FE)
flg = TTY_FRAME;
if (rds & ADM5120_UART_OE) {
/*
* CHECK: does overrun affect the current character?
* ASSUMPTION: it does not.
*/
tty_insert_flip_char(tty, ch, flg);
ch = 0;
flg = TTY_OVERRUN;
}
#ifdef CONFIG_MAGIC_SYSRQ
port->sysrq = 0;
#endif
goto error_return;
}
static void adm5120ser_irq_tx(struct uart_port *port)
{
struct circ_buf *xmit = &port->info->xmit;
int count;
if (port->x_char) {
ADM5120_UART_REG(port->iobase, ADM5120_UART_DATA) =
port->x_char;
port->icount.tx++;
port->x_char = 0;
return;
}
if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
adm5120ser_stop_tx(port);
return;
}
count = port->fifosize >> 1;
do {
ADM5120_UART_REG(port->iobase, ADM5120_UART_DATA) =
xmit->buf[xmit->tail];
xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
port->icount.tx++;
if (uart_circ_empty(xmit))
break;
} while (--count > 0);
if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
uart_write_wakeup(port);
if (uart_circ_empty(xmit))
adm5120ser_stop_tx(port);
}
static void adm5120ser_irq_modem(struct uart_port *port)
{
unsigned int status;
status = ADM5120_UART_REG(port->iobase, ADM5120_UART_FR);
if (status & ADM5120_UART_DCD)
uart_handle_dcd_change(port, status & ADM5120_UART_DCD);
if (status & ADM5120_UART_DSR)
port->icount.dsr++;
if (status & ADM5120_UART_CTS)
uart_handle_cts_change(port, status & ADM5120_UART_CTS);
wake_up_interruptible(&port->info->delta_msr_wait);
}
static irqreturn_t adm5120ser_irq(int irq, void *dev_id)
{
struct uart_port *port = dev_id;
unsigned long ir = ADM5120_UART_REG(port->iobase, ADM5120_UART_IR);
if (ir & (ADM5120_UART_RIS | ADM5120_UART_RTIS))
adm5120ser_irq_rx(port);
if (ir & ADM5120_UART_TIS)
adm5120ser_irq_tx(port);
if (ir & ADM5120_UART_MIS) {
adm5120ser_irq_modem(port);
ADM5120_UART_REG(port->iobase, ADM5120_UART_IR) = 0xff;
}
return IRQ_HANDLED;
}
static unsigned int adm5120ser_tx_empty(struct uart_port *port)
{
unsigned int fr = ADM5120_UART_REG(port->iobase, ADM5120_UART_FR);
return (fr & ADM5120_UART_TXFE) ? TIOCSER_TEMT : 0;
}
static void adm5120ser_set_mctrl(struct uart_port *port, unsigned int mctrl)
{
}
static unsigned int adm5120ser_get_mctrl(struct uart_port *port)
{
unsigned int result = 0;
unsigned int fr = ADM5120_UART_REG(port->iobase, ADM5120_UART_FR);
if (fr & ADM5120_UART_CTS)
result |= TIOCM_CTS;
if (fr & ADM5120_UART_DSR)
result |= TIOCM_DSR;
if (fr & ADM5120_UART_DCD)
result |= TIOCM_CAR;
return result;
}
static void adm5120ser_start_tx(struct uart_port *port)
{
ADM5120_UART_REG(port->iobase, ADM5120_UART_CR) |= ADM5120_UART_TIE;
}
static void adm5120ser_stop_rx(struct uart_port *port)
{
ADM5120_UART_REG(port->iobase, ADM5120_UART_CR) &= ~ADM5120_UART_RIE;
}
static void adm5120ser_enable_ms(struct uart_port *port)
{
}
static void adm5120ser_break_ctl(struct uart_port *port, int break_state)
{
unsigned long flags;
unsigned long lcrh;
spin_lock_irqsave(&port->lock, flags);
lcrh = ADM5120_UART_REG(port->iobase, ADM5120_UART_LCR_H);
if (break_state == -1)
lcrh |= ADM5120_UART_BRK;
else
lcrh &= ~ADM5120_UART_BRK;
ADM5120_UART_REG(port->iobase, ADM5120_UART_LCR_H) = lcrh;
spin_unlock_irqrestore(&port->lock, flags);
}
static int adm5120ser_startup(struct uart_port *port)
{
int ret;
ret = request_irq(port->irq, adm5120ser_irq, 0, "ADM5120 UART", port);
if (ret) {
printk(KERN_ERR "Couldn't get irq %d\n", port->irq);
return ret;
}
ADM5120_UART_REG(port->iobase, ADM5120_UART_LCR_H) |=
ADM5120_UART_FIFO_EN;
ADM5120_UART_REG(port->iobase, ADM5120_UART_CR) |=
ADM5120_UART_EN | ADM5120_UART_IE;
return 0;
}
static void adm5120ser_shutdown(struct uart_port *port)
{
ADM5120_UART_REG(port->iobase, ADM5120_UART_CR) &= ~ADM5120_UART_IE;
free_irq(port->irq, port);
}
static void adm5120ser_set_termios(struct uart_port *port,
struct ktermios *termios, struct ktermios *old)
{
unsigned int baud, quot, lcrh;
unsigned long flags;
termios->c_cflag |= CREAD;
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
quot = uart_get_divisor(port, baud);
lcrh = ADM5120_UART_FIFO_EN;
switch (termios->c_cflag & CSIZE) {
case CS5:
lcrh |= ADM5120_UART_W5;
break;
case CS6:
lcrh |= ADM5120_UART_W6;
break;
case CS7:
lcrh |= ADM5120_UART_W7;
break;
default:
lcrh |= ADM5120_UART_W8;
break;
}
if (termios->c_cflag & CSTOPB)
lcrh |= ADM5120_UART_STP2;
if (termios->c_cflag & PARENB) {
lcrh |= ADM5120_UART_PEN;
if (!(termios->c_cflag & PARODD))
lcrh |= ADM5120_UART_EPS;
}
spin_lock_irqsave(port->lock, flags);
ADM5120_UART_REG(port->iobase, ADM5120_UART_LCR_H) = lcrh;
/*
* Update the per-port timeout.
*/
uart_update_timeout(port, termios->c_cflag, baud);
port->read_status_mask = ADM5120_UART_OE;
if (termios->c_iflag & INPCK)
port->read_status_mask |= ADM5120_UART_FE | ADM5120_UART_PE;
if (termios->c_iflag & (BRKINT | PARMRK))
port->read_status_mask |= ADM5120_UART_BE;
/*
* Characters to ignore
*/
port->ignore_status_mask = 0;
if (termios->c_iflag & IGNPAR)
port->ignore_status_mask |= ADM5120_UART_FE | ADM5120_UART_PE;
if (termios->c_iflag & IGNBRK) {
port->ignore_status_mask |= ADM5120_UART_BE;
/*
* If we're ignoring parity and break indicators,
* ignore overruns to (for real raw support).
*/
if (termios->c_iflag & IGNPAR)
port->ignore_status_mask |= ADM5120_UART_OE;
}
quot = ADM5120_UART_BAUD115200;
ADM5120_UART_REG(port->iobase, ADM5120_UART_LCR_L) = quot & 0xff;
ADM5120_UART_REG(port->iobase, ADM5120_UART_LCR_M) = quot >> 8;
spin_unlock_irqrestore(&port->lock, flags);
}
static const char *adm5120ser_type(struct uart_port *port)
{
return port->type == PORT_ADM5120 ? "ADM5120" : NULL;
}
static void adm5120ser_config_port(struct uart_port *port, int flags)
{
if (flags & UART_CONFIG_TYPE)
port->type = PORT_ADM5120;
}
static void adm5120ser_release_port(struct uart_port *port)
{
release_mem_region(port->iobase, ADM5120_UART_SIZE);
}
static int adm5120ser_request_port(struct uart_port *port)
{
return request_mem_region(port->iobase, ADM5120_UART_SIZE,
"adm5120-uart") != NULL ? 0 : -EBUSY;
}
static struct uart_ops adm5120ser_ops = {
.tx_empty = adm5120ser_tx_empty,
.set_mctrl = adm5120ser_set_mctrl,
.get_mctrl = adm5120ser_get_mctrl,
.stop_tx = adm5120ser_stop_tx,
.start_tx = adm5120ser_start_tx,
.stop_rx = adm5120ser_stop_rx,
.enable_ms = adm5120ser_enable_ms,
.break_ctl = adm5120ser_break_ctl,
.startup = adm5120ser_startup,
.shutdown = adm5120ser_shutdown,
.set_termios = adm5120ser_set_termios,
.type = adm5120ser_type,
.config_port = adm5120ser_config_port,
.release_port = adm5120ser_release_port,
.request_port = adm5120ser_request_port,
};
static void adm5120console_put(const char c)
{
while ((ADM5120_UART_REG(ADM5120_UART0_BASE, ADM5120_UART_FR) &
ADM5120_UART_TXFF) != 0);
ADM5120_UART_REG(ADM5120_UART0_BASE, ADM5120_UART_DATA) = c;
}
static void adm5120console_write(struct console *con, const char *s,
unsigned int count)
{
while (count--) {
if (*s == '\n')
adm5120console_put('\r');
adm5120console_put(*s);
s++;
}
}
static int adm5120console_setup(struct console *con, char *options)
{
/* Set to 115200 baud, 8N1 and enable FIFO */
ADM5120_UART_REG(ADM5120_UART0_BASE, ADM5120_UART_LCR_L) =
ADM5120_UART_BAUD115200 & 0xff;
ADM5120_UART_REG(ADM5120_UART0_BASE, ADM5120_UART_LCR_M) =
ADM5120_UART_BAUD115200 >> 8;
ADM5120_UART_REG(ADM5120_UART0_BASE, ADM5120_UART_LCR_H) =
ADM5120_UART_W8 | ADM5120_UART_FIFO_EN;
/* Enable port */
ADM5120_UART_REG(ADM5120_UART0_BASE, ADM5120_UART_CR) =
ADM5120_UART_EN;
return 0;
}
static struct uart_driver adm5120ser_reg;
static struct console adm5120_serconsole = {
.name = "ttyS",
.write = adm5120console_write,
.device = uart_console_device,
.setup = adm5120console_setup,
.flags = CON_PRINTBUFFER,
.cflag = B115200 | CS8 | CREAD,
.index = 0,
.data = &adm5120ser_reg,
};
static int __init adm5120console_init(void)
{
register_console(&adm5120_serconsole);
return 0;
}
console_initcall(adm5120console_init);
static struct uart_port adm5120ser_ports[] = {
{
.iobase = ADM5120_UART0_BASE,
.irq = ADM5120_IRQ_UART0,
.uartclk = ADM5120_UARTCLK_FREQ,
.fifosize = 16,
.ops = &adm5120ser_ops,
.line = 0,
.flags = ASYNC_BOOT_AUTOCONF,
},
#if (CONFIG_ADM5120_NR_UARTS > 1)
{
.iobase = ADM5120_UART1_BASE,
.irq = ADM5120_IRQ_UART1,
.uartclk = ADM5120_UARTCLK_FREQ,
.fifosize = 16,
.ops = &adm5120ser_ops,
.line = 1,
.flags = ASYNC_BOOT_AUTOCONF,
},
#endif
};
static struct uart_driver adm5120ser_reg = {
.owner = THIS_MODULE,
.driver_name = "ttyS",
.dev_name = "ttyS",
.major = TTY_MAJOR,
.minor = 64,
.nr = CONFIG_ADM5120_NR_UARTS,
.cons = &adm5120_serconsole,
};
static int __init adm5120ser_init(void)
{
int ret, i;
ret = uart_register_driver(&adm5120ser_reg);
if (!ret) {
for (i = 0; i < CONFIG_ADM5120_NR_UARTS; i++)
uart_add_one_port(&adm5120ser_reg, &adm5120ser_ports[i]);
}
return ret;
}
__initcall(adm5120ser_init);

View File

@@ -0,0 +1,996 @@
/*
* HCD driver for ADM5120 SoC
*
* Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
*
* Based on the ADMtek 2.4 driver
* (C) Copyright 2003 Junius Chen <juniusc@admtek.com.tw>
* Which again was based on the ohci and uhci drivers.
*/
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/errno.h>
#include <linux/init.h>
#include <linux/list.h>
#include <linux/usb.h>
#include <linux/platform_device.h>
#include <asm/bootinfo.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/system.h>
#include <asm/byteorder.h>
#include <asm/mach-adm5120/adm5120_info.h>
#include "../core/hcd.h"
MODULE_DESCRIPTION("ADM5120 USB Host Controller Driver");
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Jeroen Vreeken (pe1rxq@amsat.org)");
#define PFX "adm5120-hcd: "
#define ADMHCD_REG_CONTROL 0x00
#define ADMHCD_SW_RESET 0x00000008 /* Reset */
#define ADMHCD_DMAA 0x00000004 /* DMA arbitration control */
#define ADMHCD_SW_INTREQ 0x00000002 /* request software int */
#define ADMHCD_HOST_EN 0x00000001 /* Host enable */
#define ADMHCD_REG_INTSTATUS 0x04
#define ADMHCD_INT_ACT 0x80000000 /* Interrupt active */
#define ADMHCD_INT_FATAL 0x40000000 /* Fatal interrupt */
#define ADMHCD_INT_SW 0x20000000 /* software interrupt */
#define ADMHCD_INT_TD 0x00100000 /* TD completed */
#define ADMHCD_FNO 0x00000800 /* Frame number overaflow */
#define ADMHCD_SO 0x00000400 /* Scheduling overrun */
#define ADMHCD_INSMI 0x00000200 /* Root hub status change */
#define ADMHCD_BABI 0x00000100 /* Babble detected, host mode */
#define ADMHCD_RESI 0x00000020 /* Resume detected */
#define ADMHCD_SOFI 0x00000010 /* SOF transmitted/received, host mode */
#define ADMHCD_REG_INTENABLE 0x08
#define ADMHCD_INT_EN 0x80000000 /* Interrupt enable */
#define ADMHCD_INTMASK 0x00000001 /* Interrupt mask */
#define ADMHCD_REG_HOSTCONTROL 0x10
#define ADMHCD_DMA_EN 0x00000004 /* USB host DMA enable */
#define ADMHCD_STATE_MASK 0x00000003
#define ADMHCD_STATE_RST 0x00000000 /* bus state reset */
#define ADMHCD_STATE_RES 0x00000001 /* bus state resume */
#define ADMHCD_STATE_OP 0x00000002 /* bus state operational */
#define ADMHCD_STATE_SUS 0x00000003 /* bus state suspended */
#define ADMHCD_REG_FMINTERVAL 0x18
#define ADMHCD_REG_FMNUMBER 0x1c
#define ADMHCD_REG_LSTHRESH 0x70
#define ADMHCD_REG_RHDESCR 0x74
#define ADMHCD_CRWE 0x20000000 /* Clear wakeup enable */
#define ADMHCD_DRWE 0x10000000 /* Device remote wakeup enable */
#define ADMHCD_HW_OCIC 0x08000000 /* Over current indication change */
#define ADMHCD_LPSC 0x04000000 /* Local power switch change */
#define ADMHCD_OCI 0x02000000 /* Over current indication */
#define ADMHCD_LPS 0x01000000 /* Local power switch/global power switch */
#define ADMHCD_NOCP 0x00000800 /* No over current protect mode */
#define ADMHCD_OPCM 0x00000400 /* Over current protect mode */
#define ADMHCD_NPS 0x00000200 /* No Power Switch */
#define ADMHCD_PSM 0x00000100 /* Power switch mode */
#define ADMHCD_REG_PORTSTATUS0 0x78
#define ADMHCD_CCS 0x00000001 /* current connect status */
#define ADMHCD_PES 0x00000002 /* port enable status */
#define ADMHCD_PSS 0x00000004 /* port suspend status */
#define ADMHCD_POCI 0x00000008 /* port overcurrent indicator */
#define ADMHCD_PRS 0x00000010 /* port reset status */
#define ADMHCD_PPS 0x00000100 /* port power status */
#define ADMHCD_LSDA 0x00000200 /* low speed device attached */
#define ADMHCD_CSC 0x00010000 /* connect status change */
#define ADMHCD_PESC 0x00020000 /* enable status change */
#define ADMHCD_PSSC 0x00040000 /* suspend status change */
#define ADMHCD_OCIC 0x00080000 /* overcurrent change*/
#define ADMHCD_PRSC 0x00100000 /* reset status change */
#define ADMHCD_REG_PORTSTATUS1 0x7c
#define ADMHCD_REG_HOSTHEAD 0x80
#define ADMHCD_NUMPORTS 1
#define ADMHCD_DESC_ALIGN 16
struct admhcd_ed {
/* Don't change first four, they used for DMA */
u32 control;
struct admhcd_td *tail;
struct admhcd_td *head;
struct admhcd_ed *next;
/* the rest is for the driver only: */
struct admhcd_td *cur;
struct usb_host_endpoint *ep;
struct urb *urb;
struct admhcd_ed *real;
} __attribute__ ((packed));
#define ADMHCD_ED_EPSHIFT 7 /* Shift for endpoint number */
#define ADMHCD_ED_INT 0x00000800 /* Is this an int endpoint */
#define ADMHCD_ED_SPEED 0x00002000 /* Is it a high speed dev? */
#define ADMHCD_ED_SKIP 0x00004000 /* Skip this ED */
#define ADMHCD_ED_FORMAT 0x00008000 /* Is this an isoc endpoint */
#define ADMHCD_ED_MAXSHIFT 16 /* Shift for max packet size */
struct admhcd_td {
/* Don't change first four, they are used for DMA */
u32 control;
u32 buffer;
u32 buflen;
struct admhcd_td *next;
/* the rest is for the driver only: */
struct urb *urb;
struct admhcd_td *real;
} __attribute__ ((packed));
#define ADMHCD_TD_OWN 0x80000000
#define ADMHCD_TD_TOGGLE 0x00000000
#define ADMHCD_TD_DATA0 0x01000000
#define ADMHCD_TD_DATA1 0x01800000
#define ADMHCD_TD_OUT 0x00200000
#define ADMHCD_TD_IN 0x00400000
#define ADMHCD_TD_SETUP 0x00000000
#define ADMHCD_TD_ISO 0x00010000
#define ADMHCD_TD_R 0x00040000
#define ADMHCD_TD_INTEN 0x00010000
static int admhcd_td_err[16] = {
0, /* No */
-EREMOTEIO, /* CRC */
-EREMOTEIO, /* bit stuff */
-EREMOTEIO, /* data toggle */
-EPIPE, /* stall */
-ETIMEDOUT, /* timeout */
-EPROTO, /* pid err */
-EPROTO, /* unexpected pid */
-EREMOTEIO, /* data overrun */
-EREMOTEIO, /* data underrun */
-ETIMEDOUT, /* 1010 */
-ETIMEDOUT, /* 1011 */
-EREMOTEIO, /* buffer overrun */
-EREMOTEIO, /* buffer underrun */
-ETIMEDOUT, /* 1110 */
-ETIMEDOUT, /* 1111 */
};
#define ADMHCD_TD_ERRMASK 0x38000000
#define ADMHCD_TD_ERRSHIFT 27
#define TD(td) ((struct admhcd_td *)(((u32)(td)) & ~(ADMHCD_DESC_ALIGN-1)))
#define ED(ed) ((struct admhcd_ed *)(((u32)(ed)) & ~(ADMHCD_DESC_ALIGN-1)))
struct admhcd {
spinlock_t lock;
/* Root hub registers */
u32 rhdesca;
u32 rhdescb;
u32 rhstatus;
u32 rhport[2];
/* async schedule: control, bulk */
struct list_head async;
u32 base;
u32 dma_en;
unsigned long flags;
};
static inline struct admhcd *hcd_to_admhcd(struct usb_hcd *hcd)
{
return (struct admhcd *)(hcd->hcd_priv);
}
static inline struct usb_hcd *admhcd_to_hcd(struct admhcd *admhcd)
{
return container_of((void *)admhcd, struct usb_hcd, hcd_priv);
}
static char hcd_name[] = "adm5120-hcd";
static u32 admhcd_reg_get(struct admhcd *ahcd, int reg)
{
return *(volatile u32 *)KSEG1ADDR(ahcd->base+reg);
}
static void admhcd_reg_set(struct admhcd *ahcd, int reg, u32 val)
{
*(volatile u32 *)KSEG1ADDR(ahcd->base+reg) = val;
}
static void admhcd_lock(struct admhcd *ahcd)
{
spin_lock_irqsave(&ahcd->lock, ahcd->flags);
ahcd->dma_en = admhcd_reg_get(ahcd, ADMHCD_REG_HOSTCONTROL) &
ADMHCD_DMA_EN;
admhcd_reg_set(ahcd, ADMHCD_REG_HOSTCONTROL, ADMHCD_STATE_OP);
}
static void admhcd_unlock(struct admhcd *ahcd)
{
admhcd_reg_set(ahcd, ADMHCD_REG_HOSTCONTROL,
ADMHCD_STATE_OP | ahcd->dma_en);
spin_unlock_irqrestore(&ahcd->lock, ahcd->flags);
}
static struct admhcd_td *admhcd_td_alloc(struct admhcd_ed *ed, struct urb *urb)
{
struct admhcd_td *tdn, *td;
tdn = kzalloc(sizeof(*tdn)+ADMHCD_DESC_ALIGN, GFP_ATOMIC);
if (!tdn)
return NULL;
tdn->real = tdn;
tdn = TD(KSEG1ADDR(tdn));
if (ed->cur == NULL) {
ed->cur = tdn;
ed->head = tdn;
ed->tail = tdn;
td = tdn;
} else {
/* Supply back the old tail and link in new td as tail */
td = TD(ed->tail);
TD(ed->tail)->next = tdn;
ed->tail = tdn;
}
td->urb = urb;
return td;
}
static void admhcd_td_free(struct admhcd_ed *ed, struct urb *urb)
{
struct admhcd_td *td, **tdp;
if (urb == NULL)
ed->control |= ADMHCD_ED_SKIP;
tdp = &ed->cur;
td = ed->cur;
do {
if (td->urb == urb)
break;
tdp = &td->next;
td = TD(td->next);
} while (td);
while (td && td->urb == urb) {
*tdp = TD(td->next);
kfree(td->real);
td = *tdp;
}
}
/* Find an endpoint's descriptor, if needed allocate a new one and link it
in the DMA chain
*/
static struct admhcd_ed *admhcd_get_ed(struct admhcd *ahcd,
struct usb_host_endpoint *ep, struct urb *urb)
{
struct admhcd_ed *hosthead;
struct admhcd_ed *found = NULL, *ed = NULL;
unsigned int pipe = urb->pipe;
admhcd_lock(ahcd);
hosthead = (struct admhcd_ed *)admhcd_reg_get(ahcd, ADMHCD_REG_HOSTHEAD);
if (hosthead) {
for (ed = hosthead;; ed = ED(ed->next)) {
if (ed->ep == ep) {
found = ed;
break;
}
if (ED(ed->next) == hosthead)
break;
}
}
if (!found) {
found = kzalloc(sizeof(*found)+ADMHCD_DESC_ALIGN, GFP_ATOMIC);
if (!found)
goto out;
found->real = found;
found->ep = ep;
found = ED(KSEG1ADDR(found));
found->control = usb_pipedevice(pipe) |
(usb_pipeendpoint(pipe) << ADMHCD_ED_EPSHIFT) |
(usb_pipeint(pipe) ? ADMHCD_ED_INT : 0) |
(urb->dev->speed == USB_SPEED_FULL ? ADMHCD_ED_SPEED : 0) |
(usb_pipeisoc(pipe) ? ADMHCD_ED_FORMAT : 0) |
(usb_maxpacket(urb->dev, pipe, usb_pipeout(pipe)) << ADMHCD_ED_MAXSHIFT);
/* Alloc first dummy td */
admhcd_td_alloc(found, NULL);
if (hosthead) {
found->next = hosthead;
ed->next = found;
} else {
found->next = found;
admhcd_reg_set(ahcd, ADMHCD_REG_HOSTHEAD, (u32)found);
}
}
out:
admhcd_unlock(ahcd);
return found;
}
static struct admhcd_td *admhcd_td_fill(u32 control, struct admhcd_td *td,
dma_addr_t data, int len)
{
td->buffer = data;
td->buflen = len;
td->control = control;
return TD(td->next);
}
static void admhcd_ed_start(struct admhcd *ahcd, struct admhcd_ed *ed)
{
struct admhcd_td *td = ed->cur;
if (ed->urb)
return;
if (td->urb) {
ed->urb = td->urb;
while (1) {
td->control |= ADMHCD_TD_OWN;
if (TD(td->next)->urb != td->urb) {
td->buflen |= ADMHCD_TD_INTEN;
break;
}
td = TD(td->next);
}
}
ed->head = TD(ed->head);
ahcd->dma_en |= ADMHCD_DMA_EN;
}
static irqreturn_t admhcd_irq(struct usb_hcd *hcd)
{
struct admhcd *ahcd = hcd_to_admhcd(hcd);
u32 intstatus;
intstatus = admhcd_reg_get(ahcd, ADMHCD_REG_INTSTATUS);
if (intstatus & ADMHCD_INT_FATAL) {
admhcd_reg_set(ahcd, ADMHCD_REG_INTSTATUS, ADMHCD_INT_FATAL);
/* FIXME: handle fatal interrupts */
}
if (intstatus & ADMHCD_INT_SW) {
admhcd_reg_set(ahcd, ADMHCD_REG_INTSTATUS, ADMHCD_INT_SW);
/* FIXME: handle software interrupts */
}
if (intstatus & ADMHCD_INT_TD) {
struct admhcd_ed *ed, *head;
admhcd_reg_set(ahcd, ADMHCD_REG_INTSTATUS, ADMHCD_INT_TD);
head = (struct admhcd_ed *)admhcd_reg_get(ahcd, ADMHCD_REG_HOSTHEAD);
ed = head;
if (ed) do {
/* Is it a finished TD? */
if (ed->urb && !(ed->cur->control & ADMHCD_TD_OWN)) {
struct admhcd_td *td;
int error;
td = ed->cur;
error = (td->control & ADMHCD_TD_ERRMASK) >>
ADMHCD_TD_ERRSHIFT;
ed->urb->status = admhcd_td_err[error];
admhcd_td_free(ed, ed->urb);
// Calculate real length!!!
ed->urb->actual_length = ed->urb->transfer_buffer_length;
ed->urb->hcpriv = NULL;
usb_hcd_giveback_urb(hcd, ed->urb);
ed->urb = NULL;
}
admhcd_ed_start(ahcd, ed);
ed = ED(ed->next);
} while (ed != head);
}
return IRQ_HANDLED;
}
static int admhcd_urb_enqueue(struct usb_hcd *hcd, struct usb_host_endpoint *ep,
struct urb *urb, gfp_t mem_flags)
{
struct admhcd *ahcd = hcd_to_admhcd(hcd);
struct admhcd_ed *ed;
struct admhcd_td *td;
int size = 0, i, zero = 0, ret = 0;
unsigned int pipe = urb->pipe, toggle = 0;
dma_addr_t data = (dma_addr_t)urb->transfer_buffer;
int data_len = urb->transfer_buffer_length;
ed = admhcd_get_ed(ahcd, ep, urb);
if (!ed)
return -ENOMEM;
switch(usb_pipetype(pipe)) {
case PIPE_CONTROL:
size = 2;
case PIPE_INTERRUPT:
case PIPE_BULK:
default:
size += urb->transfer_buffer_length / 4096;
if (urb->transfer_buffer_length % 4096)
size++;
if (size == 0)
size++;
else if (urb->transfer_flags & URB_ZERO_PACKET &&
!(urb->transfer_buffer_length %
usb_maxpacket(urb->dev, pipe, usb_pipeout(pipe)))) {
size++;
zero = 1;
}
break;
case PIPE_ISOCHRONOUS:
size = urb->number_of_packets;
break;
}
admhcd_lock(ahcd);
/* Remember the first td */
td = admhcd_td_alloc(ed, urb);
if (!td) {
ret = -ENOMEM;
goto out;
}
/* Allocate additionall tds first */
for (i = 1; i < size; i++) {
if (admhcd_td_alloc(ed, urb) == NULL) {
admhcd_td_free(ed, urb);
ret = -ENOMEM;
goto out;
}
}
if (usb_gettoggle(urb->dev, usb_pipeendpoint(pipe), usb_pipeout(pipe)))
toggle = ADMHCD_TD_TOGGLE;
else {
toggle = ADMHCD_TD_DATA0;
usb_settoggle(urb->dev, usb_pipeendpoint(pipe),
usb_pipeout(pipe), 1);
}
switch(usb_pipetype(pipe)) {
case PIPE_CONTROL:
td = admhcd_td_fill(ADMHCD_TD_SETUP | ADMHCD_TD_DATA0,
td, (dma_addr_t)urb->setup_packet, 8);
while (data_len > 0) {
td = admhcd_td_fill(ADMHCD_TD_DATA1
| ADMHCD_TD_R |
(usb_pipeout(pipe) ?
ADMHCD_TD_OUT : ADMHCD_TD_IN), td,
data, data_len % 4097);
data_len -= 4096;
}
admhcd_td_fill(ADMHCD_TD_DATA1 | (usb_pipeout(pipe) ?
ADMHCD_TD_IN : ADMHCD_TD_OUT), td,
data, 0);
break;
case PIPE_INTERRUPT:
case PIPE_BULK:
//info ok for interrupt?
i = 0;
while(data_len > 4096) {
td = admhcd_td_fill((usb_pipeout(pipe) ?
ADMHCD_TD_OUT :
ADMHCD_TD_IN | ADMHCD_TD_R) |
(i ? ADMHCD_TD_TOGGLE : toggle), td,
data, 4096);
data += 4096;
data_len -= 4096;
i++;
}
td = admhcd_td_fill((usb_pipeout(pipe) ?
ADMHCD_TD_OUT : ADMHCD_TD_IN) |
(i ? ADMHCD_TD_TOGGLE : toggle), td, data, data_len);
i++;
if (zero)
admhcd_td_fill((usb_pipeout(pipe) ?
ADMHCD_TD_OUT : ADMHCD_TD_IN) |
(i ? ADMHCD_TD_TOGGLE : toggle), td, 0, 0);
break;
case PIPE_ISOCHRONOUS:
for (i = 0; i < urb->number_of_packets; i++) {
td = admhcd_td_fill(ADMHCD_TD_ISO |
((urb->start_frame + i) & 0xffff), td,
data + urb->iso_frame_desc[i].offset,
urb->iso_frame_desc[i].length);
}
break;
}
urb->hcpriv = ed;
admhcd_ed_start(ahcd, ed);
out:
admhcd_unlock(ahcd);
return ret;
}
static int admhcd_urb_dequeue(struct usb_hcd *hcd, struct urb *urb)
{
struct admhcd *ahcd = hcd_to_admhcd(hcd);
struct admhcd_ed *ed;
admhcd_lock(ahcd);
ed = urb->hcpriv;
if (ed && ed->urb != urb)
admhcd_td_free(ed, urb);
admhcd_unlock(ahcd);
return 0;
}
static void admhcd_endpoint_disable(struct usb_hcd *hcd, struct usb_host_endpoint *ep)
{
struct admhcd *ahcd = hcd_to_admhcd(hcd);
struct admhcd_ed *ed, *edt, *head;
admhcd_lock(ahcd);
head = (struct admhcd_ed *)admhcd_reg_get(ahcd, ADMHCD_REG_HOSTHEAD);
if (!head)
goto out;
for (ed = head; ED(ed->next) != head; ed = ED(ed->next))
if (ed->ep == ep)
break;
if (ed->ep != ep)
goto out;
while (ed->cur)
admhcd_td_free(ed, ed->cur->urb);
if (head == ed) {
if (ED(ed->next) == ed) {
admhcd_reg_set(ahcd, ADMHCD_REG_HOSTHEAD, 0);
ahcd->dma_en = 0;
goto out_free;
}
head = ED(ed->next);
for (edt = head; ED(edt->next) != head; edt = ED(edt->next));
edt->next = ED(ed->next);
admhcd_reg_set(ahcd, ADMHCD_REG_HOSTHEAD, (u32)ed->next);
goto out_free;
}
for (edt = head; edt->next != ed; edt = edt->next);
edt->next = ed->next;
out_free:
kfree(ed->real);
out:
admhcd_unlock(ahcd);
}
static int admhcd_get_frame_number(struct usb_hcd *hcd)
{
struct admhcd *ahcd = hcd_to_admhcd(hcd);
return admhcd_reg_get(ahcd, ADMHCD_REG_FMNUMBER) & 0x0000ffff;
}
static int admhcd_hub_status_data(struct usb_hcd *hcd, char *buf)
{
struct admhcd *ahcd = hcd_to_admhcd(hcd);
int port;
*buf = 0;
for (port = 0; port < ADMHCD_NUMPORTS; port++) {
if (admhcd_reg_get(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4) &
(ADMHCD_CSC | ADMHCD_PESC | ADMHCD_PSSC | ADMHCD_OCIC |
ADMHCD_PRSC))
*buf |= (1 << (port + 1));
}
return !!*buf;
}
static __u8 root_hub_hub_des[] = {
0x09, /* __u8 bLength; */
0x29, /* __u8 bDescriptorType; Hub-descriptor */
0x02, /* __u8 bNbrPorts; */
0x0a, 0x00, /* __u16 wHubCharacteristics; */
0x01, /* __u8 bPwrOn2pwrGood; 2ms */
0x00, /* __u8 bHubContrCurrent; 0mA */
0x00, /* __u8 DeviceRemovable; */
0xff, /* __u8 PortPwrCtrlMask; */
};
static int admhcd_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
u16 wIndex, char *buf, u16 wLength)
{
struct admhcd *ahcd = hcd_to_admhcd(hcd);
int retval = 0, len;
unsigned int port = wIndex -1;
switch (typeReq) {
case GetHubStatus:
*(__le32 *)buf = cpu_to_le32(0);
break;
case GetPortStatus:
if (port >= ADMHCD_NUMPORTS)
goto err;
*(__le32 *)buf = cpu_to_le32(
admhcd_reg_get(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4));
break;
case SetHubFeature: /* We don't implement these */
case ClearHubFeature:
switch (wValue) {
case C_HUB_OVER_CURRENT:
case C_HUB_LOCAL_POWER:
break;
default:
goto err;
}
case SetPortFeature:
if (port >= ADMHCD_NUMPORTS)
goto err;
switch (wValue) {
case USB_PORT_FEAT_SUSPEND:
admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_PSS);
break;
case USB_PORT_FEAT_RESET:
if (admhcd_reg_get(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4)
& ADMHCD_CCS) {
admhcd_reg_set(ahcd,
ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_PRS | ADMHCD_CSC);
mdelay(50);
admhcd_reg_set(ahcd,
ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_PES | ADMHCD_CSC);
}
break;
case USB_PORT_FEAT_POWER:
admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_PPS);
break;
default:
goto err;
}
break;
case ClearPortFeature:
if (port >= ADMHCD_NUMPORTS)
goto err;
switch (wValue) {
case USB_PORT_FEAT_ENABLE:
admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_CCS);
break;
case USB_PORT_FEAT_C_ENABLE:
admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_PESC);
break;
case USB_PORT_FEAT_SUSPEND:
admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_POCI);
break;
case USB_PORT_FEAT_C_SUSPEND:
admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_PSSC);
case USB_PORT_FEAT_POWER:
admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_LSDA);
break;
case USB_PORT_FEAT_C_CONNECTION:
admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_CSC);
break;
case USB_PORT_FEAT_C_OVER_CURRENT:
admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_OCIC);
break;
case USB_PORT_FEAT_C_RESET:
admhcd_reg_set(ahcd, ADMHCD_REG_PORTSTATUS0 + port*4,
ADMHCD_PRSC);
break;
default:
goto err;
}
break;
case GetHubDescriptor:
len = min_t(unsigned int, sizeof(root_hub_hub_des), wLength);
memcpy(buf, root_hub_hub_des, len);
break;
default:
err:
retval = -EPIPE;
}
return retval;
}
static int admhcd_start(struct usb_hcd *hcd)
{
struct admhcd *ahcd = hcd_to_admhcd(hcd);
unsigned long flags;
spin_lock_irqsave(&ahcd->lock, flags);
/* Initialise the HCD registers */
admhcd_reg_set(ahcd, ADMHCD_REG_INTENABLE, 0);
mdelay(10);
admhcd_reg_set(ahcd, ADMHCD_REG_CONTROL, ADMHCD_SW_RESET);
while (admhcd_reg_get(ahcd, ADMHCD_REG_CONTROL) & ADMHCD_SW_RESET) {
printk(KERN_WARNING PFX "waiting for reset to complete\n");
mdelay(1);
}
//hcd->uses_new_polling = 1;
/* Enable USB host mode */
admhcd_reg_set(ahcd, ADMHCD_REG_CONTROL, ADMHCD_HOST_EN);
/* Set host specific settings */
admhcd_reg_set(ahcd, ADMHCD_REG_HOSTHEAD, 0x00000000);
admhcd_reg_set(ahcd, ADMHCD_REG_FMINTERVAL, 0x20002edf);
admhcd_reg_set(ahcd, ADMHCD_REG_LSTHRESH, 0x628);
/* Set interrupts */
admhcd_reg_set(ahcd, ADMHCD_REG_INTENABLE, ADMHCD_INT_ACT |
ADMHCD_INT_FATAL | ADMHCD_INT_SW | ADMHCD_INT_TD);
admhcd_reg_set(ahcd, ADMHCD_REG_INTSTATUS, ADMHCD_INT_ACT |
ADMHCD_INT_FATAL | ADMHCD_INT_SW | ADMHCD_INT_TD);
/* Power on all ports */
admhcd_reg_set(ahcd, ADMHCD_REG_RHDESCR, ADMHCD_NPS | ADMHCD_LPSC);
/* HCD is now operationnal */
admhcd_reg_set(ahcd, ADMHCD_REG_HOSTCONTROL, ADMHCD_STATE_OP);
hcd->state = HC_STATE_RUNNING;
spin_unlock_irqrestore(&ahcd->lock, flags);
return 0;
}
static int admhcd_sw_reset(struct admhcd *ahcd)
{
int retries = 15;
unsigned long flags;
int ret = 0;
spin_lock_irqsave(&ahcd->lock, flags);
admhcd_reg_set(ahcd, ADMHCD_REG_INTENABLE, 0);
mdelay(10);
admhcd_reg_set(ahcd, ADMHCD_REG_CONTROL, ADMHCD_SW_RESET);
while (--retries) {
mdelay(1);
if (!(admhcd_reg_get(ahcd, ADMHCD_REG_CONTROL) & ADMHCD_SW_RESET))
break;
}
if (!retries) {
printk(KERN_WARNING "%s: software reset timeout\n", hcd_name);
ret = -ETIME;
}
spin_unlock_irqrestore(&ahcd->lock, flags);
return ret;
}
static int admhcd_reset(struct usb_hcd *hcd)
{
struct admhcd *ahcd = hcd_to_admhcd(hcd);
u32 state = 0;
int ret, timeout = 15; /* ms */
unsigned long t;
ret = admhcd_sw_reset(ahcd);
if (ret)
return ret;
t = jiffies + msecs_to_jiffies(timeout);
do {
spin_lock_irq(&ahcd->lock);
state = admhcd_reg_get(ahcd, ADMHCD_REG_HOSTCONTROL);
spin_unlock_irq(&ahcd->lock);
state &= ADMHCD_STATE_MASK;
if (state == ADMHCD_STATE_RST)
break;
msleep(4);
} while (time_before_eq(jiffies, t));
if (state != ADMHCD_STATE_RST) {
printk(KERN_WARNING "%s: device not ready after %dms\n",
hcd_name, timeout);
ret = -ENODEV;
}
return ret;
}
static void admhcd_stop(struct usb_hcd *hcd)
{
struct admhcd *ahcd = hcd_to_admhcd(hcd);
unsigned long flags;
u32 val;
spin_lock_irqsave(&ahcd->lock, flags);
admhcd_reg_set(ahcd, ADMHCD_REG_INTENABLE, 0);
/* Set global control of power for ports */
val = admhcd_reg_get(ahcd, ADMHCD_REG_RHDESCR);
val &= (~ADMHCD_PSM | ADMHCD_LPS);
admhcd_reg_set(ahcd, ADMHCD_REG_RHDESCR, val);
spin_unlock_irqrestore(&ahcd->lock, flags);
/* Ask for software reset */
admhcd_sw_reset(ahcd);
}
static struct hc_driver adm5120_hc_driver = {
.description = hcd_name,
.product_desc = "ADM5120 HCD",
.hcd_priv_size = sizeof(struct admhcd),
.irq = admhcd_irq,
.flags = HCD_USB11,
.urb_enqueue = admhcd_urb_enqueue,
.urb_dequeue = admhcd_urb_dequeue,
.endpoint_disable = admhcd_endpoint_disable,
.get_frame_number = admhcd_get_frame_number,
.hub_status_data = admhcd_hub_status_data,
.hub_control = admhcd_hub_control,
.start = admhcd_start,
.stop = admhcd_stop,
.reset = admhcd_reset,
};
#define resource_len(r) (((r)->end - (r)->start) + 1)
static int __init adm5120hcd_probe(struct platform_device *pdev)
{
struct usb_hcd *hcd;
struct admhcd *ahcd;
struct resource *data;
void __iomem *data_reg;
int err = 0, irq;
if (pdev->num_resources < 2) {
printk(KERN_WARNING PFX "not enough resources\n");
err = -ENODEV;
goto out;
}
irq = platform_get_irq(pdev, 0);
data = platform_get_resource(pdev, IORESOURCE_MEM, 0);
if (pdev->dev.dma_mask) {
printk(KERN_DEBUG PFX "no we won't dma\n");
return -EINVAL;
}
if (!data || irq < 0) {
printk(KERN_DEBUG PFX "either IRQ or data resource is invalid\n");
err = -ENODEV;
goto out;
}
if (!request_mem_region(data->start, resource_len(data), hcd_name)) {
printk(KERN_DEBUG PFX "cannot request memory regions for the data resource\n");
err = -EBUSY;
goto out;
}
data_reg = ioremap(data->start, resource_len(data));
if (data_reg == NULL) {
printk(KERN_DEBUG PFX "unable to ioremap\n");
err = -ENOMEM;
goto out_mem;
}
hcd = usb_create_hcd(&adm5120_hc_driver, &pdev->dev, pdev->dev.bus_id);
if (!hcd) {
printk(KERN_DEBUG PFX "unable to create the hcd\n");
err = -ENOMEM;
goto out_unmap;
}
hcd->rsrc_start = data->start;
hcd->rsrc_len = resource_len(data);
hcd->regs = data_reg;
ahcd = hcd_to_admhcd(hcd);
ahcd->base = (u32)data_reg;
spin_lock_init(&ahcd->lock);
INIT_LIST_HEAD(&ahcd->async);
hcd->product_desc = "ADM5120 HCD";
err = usb_add_hcd(hcd, irq, IRQF_DISABLED);
if (err) {
printk(KERN_DEBUG PFX "unable to add hcd\n");
goto out_dev;
}
return 0;
out_dev:
usb_put_hcd(hcd);
out_unmap:
iounmap(data_reg);
out_mem:
release_mem_region(data->start, resource_len(data));
out:
return err;
}
#ifdef CONFIG_PM
static int adm5120hcd_suspend(struct platform_device *pdev, pm_message_t state)
{
pdev->dev.power.power_state = state;
mdelay(1);
return 0;
}
static int adm5120hcd_resume(struct platform_device *pdev, pm_message_t state)
{
pdev->dev.power.power_state = PMSG_ON;
mdelay(1);
return 0;
}
#else
#define adm5120hcd_suspend NULL
#define adm5120hcd_resume NULL
#endif
static int __init_or_module adm5120hcd_remove(struct platform_device *pdev)
{
struct usb_hcd *hcd = platform_get_drvdata(pdev);
struct admhcd *ahcd;
if (!hcd)
return 0;
ahcd = hcd_to_admhcd(hcd);
usb_remove_hcd(hcd);
usb_put_hcd(hcd);
return 0;
}
static struct platform_driver adm5120hcd_driver = {
.probe = adm5120hcd_probe,
.remove = adm5120hcd_remove,
.suspend = adm5120hcd_suspend,
.remove = adm5120hcd_resume,
.driver = {
.name = (char *)hcd_name,
.owner = THIS_MODULE,
},
};
static int __init adm5120hcd_init(void)
{
int ret;
if (usb_disabled()) {
printk(KERN_DEBUG PFX "USB support is disabled\n");
return -ENODEV;
}
if (mips_machgroup != MACH_GROUP_ADM5120) {
printk(KERN_DEBUG PFX "unsupported machine group\n");
return -ENODEV;
}
ret = platform_driver_register(&adm5120hcd_driver);
if (ret == 0)
printk(KERN_INFO PFX "registered\n");
return ret;
}
static void __exit adm5120hcd_exit(void)
{
platform_driver_unregister(&adm5120hcd_driver);
printk(KERN_INFO PFX "driver unregistered\n");
}
module_init(adm5120hcd_init);
module_exit(adm5120hcd_exit);