start kernel information

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start kernel information

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caohaifeng
Contributor IV

Hello,I port the linux kernel to my custom board,the attachment is start kernel information.

I am newbie,how to understand this piece of information?

 

Regards,

Haifeng

Original Attachment has been moved to: 启动信息.zip

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weidong_sun
NXP TechSupport
NXP TechSupport

Hello,Cao,

     你的板子启动算是正常的,输入root ,就可以登录。你现在使用的是Mini Profile文件系统,不带GUI图形界面,因此,显示器或者显示屏,不会有显示。

      似乎USB有些不太对,你需要检查CPU端USB供电,2.5V和3.3V是否正常。你把USB_OTG和USB HOST的2.5及3.3V,都检查一下。

Regards,

Weidong

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weidong_sun
NXP TechSupport
NXP TechSupport

Hello,Cao,

     你的板子启动算是正常的,输入root ,就可以登录。你现在使用的是Mini Profile文件系统,不带GUI图形界面,因此,显示器或者显示屏,不会有显示。

      似乎USB有些不太对,你需要检查CPU端USB供电,2.5V和3.3V是否正常。你把USB_OTG和USB HOST的2.5及3.3V,都检查一下。

Regards,

Weidong

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caohaifeng
Contributor IV

伟东你好。

我看imx53START-R板启动信息中,有pmic各电压的设置信息,我这个似乎cpu和pmic中间的i2c通信没有成功。另外,出现freescale login:输入root没反应。是否和我mx53_xx.c改动的较为粗糙有关(只是配置了用到的管脚,没有写一些初始化程序)?

Regards,

海峰


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weidong_sun
NXP TechSupport
NXP TechSupport

海峰,

     应该是linux/drivers/mxc/pmic/core/pmic_core_i2c.c中,你稍作一下修改,看你遇到的问题,可能是I2C总线上,没有找到MC34708。这样改一下:

static int __devinit pmic_probe(struct i2c_client *client,
    const struct i2c_device_id *id)
{
int ret = 0;
int pmic_irq;
struct pmic_platform_data *plat_data = client->dev.platform_data;
const char *name="mc34708";
int pmic_index;

/* ret = is_chip_onboard(client);
if (ret == -1)
  return -ENODEV;

name = get_chipname(client);*/

if (!name)

  return PMIC_ERROR;

....

Weidong

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weidong_sun
NXP TechSupport
NXP TechSupport

Hello,Haifeng,

      If above reply is OK, please help to press correct answer button.

Thanks,

Weidong

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caohaifeng
Contributor IV

Hello,weidong,

You are right,the Supply USB_H1_VDDA33 and USB_H1_VDDA25 are not right. I am checking the board.

Regards,

Haifeng

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