mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2025-04-21 12:27:27 +03:00
[ar7] add 2.6.35 support
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@22812 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
florian
158
target/linux/ar7/files/drivers/char/ar7_gpio.c
Normal file
158
target/linux/ar7/files/drivers/char/ar7_gpio.c
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@@ -0,0 +1,158 @@
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/*
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* Copyright (C) 2007 Nicolas Thill <nico@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <linux/device.h>
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#include <linux/fs.h>
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#include <linux/module.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/uaccess.h>
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#include <linux/io.h>
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#include <linux/types.h>
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#include <linux/cdev.h>
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#include <gpio.h>
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#define DRVNAME "ar7_gpio"
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#define LONGNAME "TI AR7 GPIOs Driver"
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MODULE_AUTHOR("Nicolas Thill <nico@openwrt.org>");
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MODULE_DESCRIPTION(LONGNAME);
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MODULE_LICENSE("GPL");
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static int ar7_gpio_major;
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static ssize_t ar7_gpio_write(struct file *file, const char __user *buf,
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size_t len, loff_t *ppos)
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{
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int pin = iminor(file->f_dentry->d_inode);
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size_t i;
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for (i = 0; i < len; ++i) {
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char c;
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if (get_user(c, buf + i))
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return -EFAULT;
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switch (c) {
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case '0':
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gpio_set_value(pin, 0);
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break;
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case '1':
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gpio_set_value(pin, 1);
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break;
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case 'd':
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case 'D':
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ar7_gpio_disable(pin);
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break;
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case 'e':
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case 'E':
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ar7_gpio_enable(pin);
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break;
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case 'i':
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case 'I':
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case '<':
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gpio_direction_input(pin);
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break;
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case 'o':
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case 'O':
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case '>':
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gpio_direction_output(pin, 0);
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break;
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default:
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return -EINVAL;
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}
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}
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return len;
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}
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static ssize_t ar7_gpio_read(struct file *file, char __user *buf,
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size_t len, loff_t *ppos)
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{
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int pin = iminor(file->f_dentry->d_inode);
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int value;
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value = gpio_get_value(pin);
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if (put_user(value ? '1' : '0', buf))
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return -EFAULT;
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return 1;
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}
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static int ar7_gpio_open(struct inode *inode, struct file *file)
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{
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int m = iminor(inode);
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if (m >= (ar7_is_titan() ? TITAN_GPIO_MAX : AR7_GPIO_MAX))
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return -EINVAL;
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return nonseekable_open(inode, file);
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}
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static int ar7_gpio_release(struct inode *inode, struct file *file)
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{
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return 0;
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}
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static const struct file_operations ar7_gpio_fops = {
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.owner = THIS_MODULE,
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.write = ar7_gpio_write,
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.read = ar7_gpio_read,
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.open = ar7_gpio_open,
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.release = ar7_gpio_release,
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.llseek = no_llseek,
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};
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static struct platform_device *ar7_gpio_device;
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static int __init ar7_gpio_init(void)
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{
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int rc;
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ar7_gpio_device = platform_device_alloc(DRVNAME, -1);
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if (!ar7_gpio_device)
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return -ENOMEM;
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rc = platform_device_add(ar7_gpio_device);
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if (rc < 0)
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goto out_put;
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rc = register_chrdev(ar7_gpio_major, DRVNAME, &ar7_gpio_fops);
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if (rc < 0)
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goto out_put;
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ar7_gpio_major = rc;
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rc = 0;
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goto out;
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out_put:
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platform_device_put(ar7_gpio_device);
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out:
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return rc;
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}
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static void __exit ar7_gpio_exit(void)
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{
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unregister_chrdev(ar7_gpio_major, DRVNAME);
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platform_device_unregister(ar7_gpio_device);
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}
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module_init(ar7_gpio_init);
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module_exit(ar7_gpio_exit);
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234
target/linux/ar7/files/drivers/mtd/titanpart.c
Normal file
234
target/linux/ar7/files/drivers/mtd/titanpart.c
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@@ -0,0 +1,234 @@
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/bootmem.h>
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#include <linux/magic.h>
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#include <asm/mach-ar7/prom.h>
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#define IMAGE_A_SIZE 0X3c0000
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#define WRTP_PARTS 14
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#define NSP_IMG_MAGIC_NUMBER le32_to_cpu(0x4D544443)
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#define NSP_IMG_SECTION_TYPE_KERNEL (0x01)
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#define NSP_IMG_SECTION_TYPE_FILESYSTEM_ROOT (0x02)
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#define NSP_IMG_SECTION_TYPE_FILESYSTEM (0x03)
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#define MAX_NUM_PARTITIONS 14
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static int part_count=0;
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static struct mtd_partition titan_parts[WRTP_PARTS];
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struct nsp_img_hdr_head
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{
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unsigned int magic; /* Magic number to identify this image header */
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unsigned int boot_offset; /* Offset from start of header to kernel code. */
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unsigned int flags; /* Image flags. */
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unsigned int hdr_version; /* Version of this header. */
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unsigned int hdr_size; /* The complete size of all portions of the header */
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unsigned int prod_id; /* This product id */
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unsigned int rel_id; /* Which release this is */
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unsigned int version; /* name-MMM.nnn.ooo-rxx => 0xMMnnooxx. See comment
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below */
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unsigned int image_size; /* Image size (including header) */
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unsigned int info_offset; /* Offset from start of header to info block */
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unsigned int sect_info_offset; /* Offset from start of header to section desc */
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unsigned int chksum_offset; /* Offset from start of header to chksum block */
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unsigned int pad1;
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};
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struct nsp_img_hdr_section_info
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{
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unsigned int num_sects; /* Number of section (and section desc blocks) in this image */
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unsigned int sect_size; /* Size of a SINGLE section_desc block */
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unsigned int sections_offset; /* Offset to from start of header to the start of the section blocks */
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};
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/* There will be one of more of the following stuctures in the image header. Each
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section will have one of these blocks. */
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struct nsp_img_hdr_sections
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{
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unsigned int offset; /* Offset of section from start of NSP_IMG_HDR_HEAD */
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unsigned int total_size; /* Size of section (including pad size.) */
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unsigned int raw_size; /* Size of section only */
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unsigned int flags; /* Section flags */
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unsigned int chksum; /* Section checksum */
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unsigned int type; /* Section type. What kind of info does this section describe */
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char name[16]; /* Reference name for this section. */
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};
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static int titan_parse_env_address(char *env_name, unsigned int *flash_base,
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unsigned int *flash_end)
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{
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char image_name[30];
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char *env_ptr;
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char *base_ptr;
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char *end_ptr;
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char * string_ptr;
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/* Get the image variable */
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env_ptr = prom_getenv(env_name);
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if(!env_ptr){
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printk("titan: invalid env name, %s.\n", env_name);
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return -1; /* Error, no image variable */
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}
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strncpy(image_name, env_ptr, 30);
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image_name[29]=0;
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string_ptr = image_name;
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/* Extract the start and stop addresses of the partition */
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base_ptr = strsep(&string_ptr, ",");
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end_ptr = strsep(&string_ptr, ",");
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if ((base_ptr == NULL) || (end_ptr == NULL)) {
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printk("titan: Couldn't tokenize %s start,end.\n", image_name);
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return -1;
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}
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*flash_base = (unsigned int) simple_strtol(base_ptr, NULL, 0);
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*flash_end = (unsigned int) simple_strtol(end_ptr, NULL, 0);
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if((!*flash_base) || (!*flash_end)) {
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printk("titan: Unable to convert :%s: :%s: into start,end values.\n",
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env_name, image_name);
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return -1;
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}
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*flash_base &= 0x0fffffff;
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*flash_end &= 0x0fffffff;
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return 0;
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}
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static int titan_get_single_image(char *bootcfg_name, unsigned int *flash_base,
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unsigned int *flash_end)
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{
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char *env_ptr;
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char *base_ptr;
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char *end_ptr;
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char image_name[30];
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char * string_ptr;
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if(!bootcfg_name || !flash_base || !flash_end)
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return -1;
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env_ptr = prom_getenv(bootcfg_name);
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if(!env_ptr){
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printk("titan: %s variable not found.\n", bootcfg_name);
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return -1; /* Error, no bootcfg variable */
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}
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string_ptr = image_name;
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/* Save off the image name */
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strncpy(image_name, env_ptr, 30);
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image_name[29]=0;
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end_ptr=strsep(&string_ptr, "\"");
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base_ptr=strsep(&string_ptr, "\""); /* Loose the last " */
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if(!end_ptr || !base_ptr){
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printk("titan: invalid bootcfg format, %s.\n", image_name);
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return -1; /* Error, invalid bootcfg variable */
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}
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/* Now, parse the addresses */
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return titan_parse_env_address(base_ptr, flash_base, flash_end);
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}
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static void titan_add_partition(char * env_name, unsigned int flash_base, unsigned int flash_end)
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{
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titan_parts[part_count].name = env_name;
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titan_parts[part_count].offset = flash_base;
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titan_parts[part_count].size = flash_end-flash_base;
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titan_parts[part_count].mask_flags = (strcmp(env_name, "bootloader")==0||
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strcmp(env_name, "boot_env")==0 ||
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strcmp(env_name, "full_image")==0 )?MTD_WRITEABLE:0;
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part_count++;
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}
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int create_titan_partitions(struct mtd_info *master,
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struct mtd_partition **pparts,
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unsigned long origin)
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{
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struct nsp_img_hdr_head hdr;
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struct nsp_img_hdr_section_info sect_info;
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struct nsp_img_hdr_sections section;
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unsigned int flash_base, flash_end;
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unsigned int start, end;
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char *name;
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int i;
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int total_sects=0;
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size_t len;
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/* Get the bootcfg env variable first */
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if(titan_get_single_image("BOOTCFG", &flash_base, &flash_end)) {
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/* Error, fallback */
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return -1;
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}
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/* Get access to the header, and do some validation checks */
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//hdr=(struct nsp_img_hdr_head*)flash_base;
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master->read(master, flash_base, sizeof(struct nsp_img_hdr_head), &len, (uint8_t *)&hdr);
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if(hdr.magic != NSP_IMG_MAGIC_NUMBER)
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return -1; /* Not a single image */
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master->read(master, flash_base + hdr.sect_info_offset, sizeof(struct nsp_img_hdr_section_info), &len, (uint8_t *)§_info);
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/* Look for the root fs, and add it first. This way we KNOW where the rootfs is */
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for(i=0; i< sect_info.num_sects && i<MAX_NUM_PARTITIONS; i++){
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master->read(master, flash_base + sect_info.sections_offset + (i * sect_info.sect_size) , sizeof(struct nsp_img_hdr_sections), &len, (uint8_t *)§ion);
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/* Add only the root partition */
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if(section.type != NSP_IMG_SECTION_TYPE_FILESYSTEM_ROOT){
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continue;
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}
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start=flash_base + section.offset;
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end=start + section.total_size;
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titan_add_partition("root", start, end);
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total_sects++;
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}
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for(i=0; i< sect_info.num_sects && i<MAX_NUM_PARTITIONS; i++){
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master->read(master, flash_base + sect_info.sections_offset + (i * sect_info.sect_size) , sizeof(struct nsp_img_hdr_sections), &len, (uint8_t *)§ion);
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name=section.name;
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if(section.type == NSP_IMG_SECTION_TYPE_FILESYSTEM_ROOT)
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{
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name = "rootfs";
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start=flash_base + section.offset;
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end=flash_end;
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titan_add_partition(name, start, end);
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total_sects++;
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}
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else if(section.type == NSP_IMG_SECTION_TYPE_KERNEL)
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{
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name = "kernel";
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start=flash_base + section.offset;
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end=start + section.total_size;
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titan_add_partition(name, start, end);
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total_sects++;
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}
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}
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/* Next, lets add the single image */
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titan_add_partition("primary_image", flash_base, flash_end);
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total_sects++;
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titan_add_partition("full_image", 0, master->size);
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total_sects++;
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if (!titan_parse_env_address("BOOTLOADER", &start, &end)){
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titan_add_partition("bootloader", start, end);
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total_sects++;
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}
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if (!titan_parse_env_address("boot_env", &start, &end)){
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titan_add_partition("boot_env", start, end);
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total_sects++;
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}
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*pparts = titan_parts;
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return total_sects;
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}
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