开帖详述linux-2.6.33内核的移植

飞凌-fatfish · 发表于 2010-3-13 16:11:44

本帖最后由飞凌-fatfish 于 2010-4-15 10:22 编辑

移植USB host驱动
在这个版本的linux内核，已经对USB驱动进行来很好的支持，仅仅需要修改配置。

Device Drivers --->
[*] USB support --->
{*} Support for Host-side USB
[*] USB device filesystem (DEPRECATED)
[*] USB device class-devices (DEPRECATED)
<*> OHCI HCD support
<*> USB Mass Storage support
[*] HID Devices --->
{*} Generic HID support
[*] /dev/hidraw raw HID device support
SCSI device support --->
<*> SCSI device support
[*] legacy /proc/scsi/ support
<*> SCSI disk support
<*> SCSI tape support

复制代码

目前2.6.28.7版本的根文件系统的设备管理器是静态生成节点的，所以需要添加节点。
开发板启动以后，在/dev目录下输入一下命令：
mknod sda1 b 8 1
这个命令中的sda1是设备节点名

飞凌-fatfish · 发表于 2010-3-13 16:25:01

本帖最后由飞凌-fatfish 于 2010-3-13 16:27 编辑

移植RTC驱动
在这个版本的linux内核，已经对RTC驱动进行来很好的支持，不需要修改配置。相应配置如下

Device Drivers --->
<*> Real Time Clock --->
[*] Set system time from RTC on startup and resume
(rtc0) RTC used to set the system time
[ ] RTC debug support
*** RTC interfaces ***
[*] /sys/class/rtc/rtcN (sysfs)
[*] /proc/driver/rtc (procfs for rtc0)
[*] /dev/rtcN (character devices)
<*> Samsung S3C series SoC RTC

复制代码

然后添加对设备的支持
打开

arch/arm/mach-s3c2440/mach-smdk2440.c

复制代码

添加设备，代码如下：

static struct platform_device *smdk2440_devices[] __initdata = {
&s3c_device_usb,
&s3c_device_lcd,
&s3c_device_wdt,
&s3c_device_i2c0,
&s3c_device_iis,
&s3c_device_rtc,
};

复制代码

飞凌-fatfish · 发表于 2010-3-15 11:32:28

移植UDA1341驱动
在平台上添加和配置UDA1341:
修改

arch/arm/mach-s3c2440/mach-smdk2440.c

复制代码

在开始添加头文件

#include <sound/s3c24xx_uda134x.h>
#include <mach/gpio-fns.h>

复制代码

添加设备配置

static struct s3c24xx_uda134x_platform_data s3c24xx_uda134x_data = {
.l3_clk = S3C2410_GPB(4),
.l3_data = S3C2410_GPB(3),
.l3_mode = S3C2410_GPB(2),
.model = UDA134X_UDA1341,
};
static struct platform_device s3c24xx_uda134x = {
.name = "s3c24xx_uda134x",
.dev = {
.platform_data = &s3c24xx_uda134x_data,
}
};

复制代码

把设备添加到平台当中

static struct platform_device *smdk2440_devices[] __initdata = {
&s3c_device_usb,
&s3c_device_lcd,
&s3c_device_wdt,
&s3c_device_i2c0,
&s3c_device_iis,
&s3c_device_rtc,
&s3c24xx_uda134x,
};

复制代码

配置如下

Device Drivers --->
<*> Sound card support --->
<*> Advanced Linux Sound Architecture --->
<*> OSS Mixer API
<*> OSS PCM (digital audio) API
[*] OSS PCM (digital audio) API - Include plugin system
[*] Support old ALSA API
[*] Verbose procfs contents
[*] Verbose printk
[*] Generic sound devices --->
<*> ALSA for SoC audio support --->
<*> SoC Audio for the Samsung S3C24XX chips
<*> SoC I2S Audio support UDA134X wired to a S3C24XX

复制代码

飞凌-fatfish · 发表于 2010-3-15 15:32:43

本帖最后由飞凌-fatfish 于 2010-7-20 14:54 编辑

移植DM9000驱动
1.修改 drivers/net/dm9000.c 文件：
头文件增加：

#include <mach/regs-gpio.h>
#include <mach/irqs.h>
#include <mach/hardware.h>

复制代码

在dm9000_probe 函数开始增加：

unsigned char ne_def_eth_mac_addr[]={0x00,0x12,0x34,0x56,0x80,0x49};
static void *bwscon;
static void *gpfcon;
static void *extint0;
static void *intmsk;
#define BWSCON (0x48000000)
#define GPFCON (0x56000050)
#define EXTINT0 (0x56000088)
#define INTMSK (0x4A000008)
bwscon=ioremap_nocache(BWSCON,0x0000004);
gpfcon=ioremap_nocache(GPFCON,0x0000004);
extint0=ioremap_nocache(EXTINT0,0x0000004);
intmsk=ioremap_nocache(INTMSK,0x0000004);
writel(readl(bwscon)|0xc0000,bwscon);
writel( (readl(gpfcon) & ~(0x3 << 14)) | (0x2 << 14), gpfcon);
writel( readl(gpfcon) | (0x1 << 7), gpfcon); // Disable pull-up
writel( (readl(extint0) & ~(0xf << 28)) | (0x4 << 28), extint0); //rising edge
writel( (readl(intmsk)) & ~0x80, intmsk);

复制代码

在这个函数的最后需要修改：

if (!is_valid_ether_addr(ndev->dev_addr)) {
/* try reading from mac */
mac_src = "chip";
for (i = 0; i < 6; i++)
//ndev->dev_addr[i] = ior(db, i+DM9000_PAR);
ndev->dev_addr[i] = ne_def_eth_mac_addr[i];
}

复制代码

2. 修改arch/arm/mach-s3c2440/mach-smdk2440.c，添加设备

static struct platform_device *smdk2440_devices[] __initdata = {
&s3c_device_usb,
&s3c_device_lcd,
&s3c_device_wdt,
&s3c_device_i2c0,
&s3c_device_iis,
&s3c_device_rtc,
&s3c24xx_uda134x,
&s3c_device_dm9000,
};

复制代码

3. 修改 arch/arm/plat-s3c24xx/devs.c
添加头文件

#include <linux/dm9000.h>

复制代码

static struct resource s3c_dm9000_resource[] = {
[0] = {
.start = S3C24XX_PA_DM9000,
.end = S3C24XX_PA_DM9000+ 0x3,
.flags = IORESOURCE_MEM
},
[1]={
.start = S3C24XX_PA_DM9000 + 0x4, //CMD pin is A2
.end = S3C24XX_PA_DM9000 + 0x4 + 0x7c,
.flags = IORESOURCE_MEM
},
[2] = {
.start = IRQ_EINT7,
.end = IRQ_EINT7,
.flags = IORESOURCE_IRQ
},
};
static struct dm9000_plat_data s3c_device_dm9000_platdata = {
.flags= DM9000_PLATF_16BITONLY,
};
struct platform_device s3c_device_dm9000 = {
.name= "dm9000",
.id= 0,
.num_resources= ARRAY_SIZE(s3c_dm9000_resource),
.resource= s3c_dm9000_resource,
.dev= {
.platform_data = &s3c_device_dm9000_platdata,
}
};
EXPORT_SYMBOL(s3c_device_dm9000);

复制代码

4. 修改 arch/arm/plat-s3c/include/plat/devs.h 45行附近,添加

extern struct platform_device s3c_device_dm9000;

复制代码

5.修改arch/arm/mach-s3c2410/include/mach/map.h 文件

/* DM9000 */
#define S3C24XX_PA_DM9000 0x20000300
#define S3C24XX_VA_DM9000 0xE0000000

复制代码

飞凌-fatfish · 发表于 2010-3-16 11:26:08

本帖最后由飞凌-fatfish 于 2010-6-9 15:32 编辑

启动画面显示小企鹅的方法
http://bbs.witech.com.cn/thread-473-1-1.html
附送修改小企鹅图片的方法，我用的是卡卡西的320*240的图片。
http://bbs.witech.com.cn/viewthr ... &extra=#pid7956

飞凌-fatfish · 发表于 2010-3-17 08:30:01

本帖最后由飞凌-fatfish 于 2010-6-9 08:48 编辑

3.5寸LCD显示的移植
更改arch/arm/mach-s3c2440/mach-smdk2440.c

/* LCD driver info */
static struct s3c2410fb_display smdk2440_lcd_cfg __initdata = {
.lcdcon5 = S3C2410_LCDCON5_FRM565 |
S3C2410_LCDCON5_INVVLINE |
S3C2410_LCDCON5_INVVFRAME |
S3C2410_LCDCON5_PWREN |
S3C2410_LCDCON5_HWSWP,
.type = S3C2410_LCDCON1_TFT,
.width = 240,
.height = 320,
.pixclock = 166667, /* HCLK 60 MHz, divisor 10 */
.xres = 240,
.yres = 320,
.bpp = 16,
.left_margin = 20,
.right_margin = 8,
.hsync_len = 4,
.upper_margin = 8,
.lower_margin = 7,
.vsync_len = 4,
};
static struct s3c2410fb_mach_info smdk2440_fb_info __initdata = {
.displays = &smdk2440_lcd_cfg,
.num_displays = 1,
.default_display = 0,
#if 0
/* currently setup by downloader */
.gpccon = 0xaa940659,
.gpccon_mask = 0xffffffff,
.gpcup = 0x0000ffff,
.gpcup_mask = 0xffffffff,
.gpdcon = 0xaa84aaa0,
.gpdcon_mask = 0xffffffff,
.gpdup = 0x0000faff,
.gpdup_mask = 0xffffffff,
#endif
.lpcsel = ((0xCE6) & ~7) | 1<<4,
};

复制代码

飞凌-fatfish · 发表于 2010-3-17 08:30:17

占楼触摸屏驱动移植

飞凌-fatfish · 发表于 2010-3-17 08:30:33

本帖最后由飞凌-fatfish 于 2010-6-9 08:39 编辑

占楼 mp3播放器移植
移植madplay
http://bbs.witech.com.cn/thread-1185-1-1.html
上面这个帖子可以适用于2.6.12和2.6.33，当然区别也是有的，主要是编译器不一样了。

飞凌-fatfish · 发表于 2010-3-17 08:30:48

占楼 vsftp移植

飞凌-fatfish · 发表于 2010-3-18 16:06:33

哎呀你们码砖太快了，我的占上几楼。
占楼移植SD卡驱动

[技术分享] 开帖详述linux-2.6.33内核的移植