移植MT7620A+MT7610E驱动到Openwrt trunk(Linux Kernel 3.14.18)(续：MT7620A)

按照上一篇的内容修改文件重新编译后不会报错，但是烧到flash里后运行的时候有问题，如下：

[   16.840000] mt7620: module license 'unspecified' taints kernel.
[   16.840000] Disabling lock debugging due to kernel taint
[   16.870000] mt7620: Unknown symbol ra_mtd_write_nm (err 0)
[   16.880000] mt7620: Unknown symbol ra_mtd_read_nm (err 0)
[   16.880000] mt7620: Unknown symbol procRegDir (err 0)
[   17.290000] mt7610: Unknown symbol ra_mtd_write_nm (err 0)
[   17.290000] mt7610: Unknown symbol ra_mtd_read_nm (err 0)
[   17.290000] mt7610: Unknown symbol procRegDir (err 0)
[   17.290000] mt7620: Unknown symbol ra_mtd_write_nm (err 0)
[   17.290000] mt7620: Unknown symbol ra_mtd_read_nm (err 0)
[   17.290000] mt7620: Unknown symbol procRegDir (err 0)
[   17.290000] ip_tables: (C) 2000-2006 Netfilter Core Team
[   17.290000] mt7610: Unknown symbol ra_mtd_write_nm (err 0)
[   17.620000] mt7610: Unknown symbol ra_mtd_read_nm (err 0)
[   17.620000] mt7610: Unknown symbol procRegDir (err 0)
[   17.670000] mt7620: Unknown symbol ra_mtd_write_nm (err 0)
[   17.690000] mt7620: Unknown symbol ra_mtd_read_nm (err 0)
[   17.690000] mt7620: Unknown symbol procRegDir (err 0)
[   17.700000] nf_conntrack version 0.5.0 (1979 buckets, 7916 max)
[   17.740000] xt_time: kernel timezone is -0000
[   17.780000] mt7610: Unknown symbol ra_mtd_write_nm (err 0)
[   17.800000] mt7610: Unknown symbol ra_mtd_read_nm (err 0)
[   17.800000] mt7610: Unknown symbol procRegDir (err 0)
[   17.860000] mt7620: Unknown symbol ra_mtd_write_nm (err 0)
[   17.880000] mt7620: Unknown symbol ra_mtd_read_nm (err 0)
[   17.880000] mt7620: Unknown symbol procRegDir (err 0)
[   17.900000] PPP generic driver version 2.4.2
[   17.900000] NET: Registered protocol family 24
[   17.940000] mt7610: Unknown symbol ra_mtd_write_nm (err 0)
[   17.960000] mt7610: Unknown symbol ra_mtd_read_nm (err 0)
[   17.960000] mt7610: Unknown symbol procRegDir (err 0)
[   18.020000] mt7620: Unknown symbol ra_mtd_write_nm (err 0)
[   18.020000] mt7620: Unknown symbol ra_mtd_read_nm (err 0)
[   18.040000] mt7620: Unknown symbol procRegDir (err 0)
[   18.080000] mt7610: Unknown symbol ra_mtd_write_nm (err 0)
[   18.090000] mt7610: Unknown symbol ra_mtd_read_nm (err 0)
[   18.100000] mt7610: Unknown symbol procRegDir (err 0)
[   18.160000] mt7620: Unknown symbol ra_mtd_write_nm (err 0)
[   18.160000] mt7620: Unknown symbol ra_mtd_read_nm (err 0)
[   18.180000] mt7620: Unknown symbol procRegDir (err 0)
[   28.440000] device eth0.1 entered promiscuous mode

解决方法

移植7620

1. 添加os/linux/rt_flash.c 内容为

#include <linux/module.h>
#include <linux/types.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/version.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/backing-dev.h>
#include <linux/compat.h>
#include <linux/mount.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/map.h>
#include <linux/mtd/concat.h>
#include <linux/mtd/partitions.h>struct proc_dir_entry *procRegDir;
/** Flash API: ra_mtd_read, ra_mtd_write* Arguments:*   - num: specific the mtd number*   - to/from: the offset to read from or written to*   - len: length*   - buf: data to be read/written* Returns:*   - return -errno if failed*   - return the number of bytes read/written if successed*/
int ra_mtd_write_nm(char *name, loff_t to, size_t len, const u_char *buf)
{int ret = -1;size_t rdlen, wrlen;struct mtd_info *mtd;struct erase_info ei;u_char *bak = NULL;mtd = get_mtd_device_nm(name);if (IS_ERR(mtd)) {ret = (int)mtd;goto out;}if (len > mtd->erasesize) {put_mtd_device(mtd);ret = -E2BIG;goto out;}bak = kzalloc(mtd->erasesize, GFP_KERNEL);if (bak == NULL) {put_mtd_device(mtd);ret = -ENOMEM;goto out;}#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)ret = mtd_read(mtd, 0, mtd->erasesize, &rdlen, bak);
#elseret = mtd->read(mtd, 0, mtd->erasesize, &rdlen, bak);
#endifif (ret) {goto free_out;}if (rdlen != mtd->erasesize)printk("warning: ra_mtd_write_nm: rdlen is not equal to erasesize\n");memcpy(bak + to, buf, len);ei.mtd = mtd;ei.callback = NULL;ei.addr = 0;ei.len = mtd->erasesize;ei.priv = 0;#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)ret = mtd_erase(mtd, &ei);
#elseret = mtd->erase(mtd, &ei);
#endifif (ret != 0)goto free_out;#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)ret = mtd_write(mtd, 0, mtd->erasesize, &wrlen, bak);
#elseret = mtd->write(mtd, 0, mtd->erasesize, &wrlen, bak);
#endifudelay(10); /* add delay after write */free_out:if (mtd)put_mtd_device(mtd);if (bak)kfree(bak);
out:return ret;
}int ra_mtd_read_nm(char *name, loff_t from, size_t len, u_char *buf)
{int ret;size_t rdlen = 0;struct mtd_info *mtd;mtd = get_mtd_device_nm(name);if (IS_ERR(mtd))return (int)mtd;#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,3,0)ret = mtd_read(mtd, from, len, &rdlen, buf);
#elseret = mtd->read(mtd, from, len, &rdlen, buf);
#endifif (rdlen != len)printk("warning: ra_mtd_read_nm: rdlen is not equal to len\n");put_mtd_device(mtd);return ret;
}EXPORT_SYMBOL(ra_mtd_write_nm);
EXPORT_SYMBOL(ra_mtd_read_nm);
EXPORT_SYMBOL(procRegDir);MODULE_AUTHOR("Steven Liu <steven_liu@ralinktech.com.tw>");
MODULE_DESCRIPTION("Ralink APSoC Flash Map");
MODULE_LICENSE("GPL");

2. 修改os/linux/rt_proc.c

将

struct proc_dir_entry *procRegDir

改为：

struct proc_dir_entry *procRegDir2860v2

并将该文件中所有调用procRegDir 的地方改为： procRegDir2860v2

3. 在Makefile中添加

rt2860v2_ap-objs += ../rt2860v2/os/linux/rt_flash.o

4. 修改 include/chip/rt2880.h

将：

#include <asm/rt2880/rt_mmap.h>

改为：

#include "rt_mmap.h" //fix

5. 修改 include/iface/rtmp_rbs.h

将：

#define RTMP_MAC_IRQ_NUM    4

改为

#define RTMP_MAC_IRQ_NUM    6

6. 修改 include/video.h

添加

VOID VideoTurbineDynamicTune(IN PRTMP_ADAPTER pAd);

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移植MT7620A+MT7610E驱动到Openwrt trunk(Linux Kernel 3.14.18)(续：MT7620A)

移植MT7620A+MT7610E驱动到Openwrt trunk(Linux Kernel 3.14.18)(续：MT7620A)

解决方法

1. 添加os/linux/rt_flash.c 内容为

2. 修改os/linux/rt_proc.c

3. 在Makefile中添加

4. 修改 include/chip/rt2880.h

5. 修改 include/iface/rtmp_rbs.h

6. 修改 include/video.h

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