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发表于 2010-3-15 15:32:43
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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 |
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