qq2440启动linux后插入u盘出现usb 1-1: device descriptor read/64, error -110,usb 1_Linux

qq2440启动linux后插入u盘出现usb 1-1: device descriptor read/64, error -110,usb 1

2019-06-13 09:13脚本之家服务器之家 Linux

这篇文章主要介绍了qq2440启动linux后插入u盘出现usb 1-1: device descriptor read/64, error -110,usb 1-1: device not accepting address 8, error -110的原因分析及解决方法,需要的朋友可以参考下

上位机：ubuntu14.04 64bit

下位机:qq2440

交叉编译器:arm-linux-gcc 3.4.1

下位机使用的linux内核版本:kernel2.6.13

1.插入u盘时错误信息如下:

[root@FriendlyARM /home]# usb 1-1: new full speed USB device using s3c2410-ohci and address 6
usb 1-1: device descriptor read/64, error -110
usb 1-1: device descriptor read/64, error -110
usb 1-1: new full speed USB device using s3c2410-ohci and address 7
usb 1-1: device descriptor read/64, error -110
usb 1-1: device descriptor read/64, error -110
usb 1-1: new full speed USB device using s3c2410-ohci and address 8
usb 1-1: device not accepting address 8, error -110
usb 1-1: new full speed USB device using s3c2410-ohci and address 9
usb 1-1: device not accepting address 9, error -110

2.解决方案如下:

2.1修改drivers/usb/host/ohci-s3c2410.c文件，添加以下内容：

　　a.先添加头文件#include <mach/regs-clock.h>

　　b.在s3c2410_start_hc函数中添加以下内容：

		bash/shell Code复制内容到剪贴板

				unsigned long upllvalue = (0x78 << 12) | (0x02 << 4) | (0x03);   

				        while (upllvalue != __raw_readl(S3C2410_UPLLCON)) {   

				                __raw_writel(upllvalue, S3C2410_UPLLCON);   

				                mdelay(1);   

				        }

　　添加后的s3c2410_start_hc函数如下:

		bash/shell Code复制内容到剪贴板

				static void s3c2410_start_hc(struct platform_device *dev, struct usb_hcd *hcd)   

				{   

				        struct s3c2410_hcd_info *info = dev->dev.platform_data;   

				        dev_dbg(&dev->dev, "s3c2410_start_hc:\n");   

				        clk_enable(clk);   

				        if (info != NULL) {   

				                info->hcd       = hcd;   

				                info->report_oc = s3c2410_hcd_oc;   

				                if (info->enable_oc != NULL) {   

				                        (info->enable_oc)(info, 1);   

				                }   

				        }   

				        unsigned long upllvalue = (0x78 << 12) | (0x02 << 4) | (0x03);   

				        while (upllvalue != __raw_readl(S3C2410_UPLLCON)) {   

				                __raw_writel(upllvalue, S3C2410_UPLLCON);   

				                mdelay(1);   

				        }   

				}