 cs8900 for arm |
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 2007-09-13 12:01:34, Thu
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#1
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 猫猫猫  Group: Power Cat Posts: 626 Joined: 2006-12-8 Member No.: 2  |
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2007-09-13 13:20:44, Thu
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#2
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猫猫猫 Group: Power Cat Posts: 626 Joined: 2006-12-8 Member No.: 2 |
代码 << BusyBox v1.4.1 移植 s3c2410 | 首 页 | s3c2410 关于 LCD移植的问题 >>
cs8900 移植 Linux-2.6.19.2 2007-02-06 移植路上真是荆棘满路，时不时让你疯狂一两天，却无可奈何... 网上已有很多相关的移植教程，第一步，当然是照着做。问题是我的Linux是2.6.19.2，与前些版本相比（据查，2.6.17版还在），在移植过程中，我发现有两个变化。一是 include/asm-arm/irq.h 里已删除一些irq操作的预定义，如： extern void disable_irq(unsigned int); extern void enable_irq(unsigned int); int set_irq_type(unsigned int irq, unsigned int type); 而网上的那个cs8900.c驱动比较老，与Linux-2.6.19.2带的cs89x0相差很大（据说这个驱动也没有使用新的驱动模型，不知道，这里应该与dm9000比较一下）。导致出现很多错误，不能编译 cs8900.c ，一天就这样在郁闷中过去... 旧的不去，新的不来，干脆就直接用cs89x0.c ^_^ google到一个 pathch-cs89x0 ，哪个开心啊...可惜这个patch是针对2.6.14，自动patch失败，手动补齐后再添一些头文件、修改一些小错误，终于编译通过。可是，狂跳几下后又得郁闷了，出现了内核编程常见错误oops： cs89x0:cs89x0_probe(0x0) Unable to handle kernel paging request at virtual address f400030a pgd = c0004000 [f400030a] *pgd=00000000 Internal error: Oops: 5 [#1] Modules linked in: CPU: 0 PC is at readword+0x1c/0x2c LR is at cs89x0_probe1+0xec/0x874 pc : [] lr : [] Not tainted sp : c032feb0 ip : c032fec0 fp : c032febc r10: f4000300 r9 : 00000000 r8 : 00000000 r7 : c0f3b800 r6 : c0f3ba60 r5 : c0f3b800 r4 : f4000300 r3 : f400030a r2 : 00000000 r1 : f400030a r0 : f4000300 Flags: NzCv IRQs on FIQs on Mode SVC_32 Segment kernel Control: 717F Table: 30004000 DAC: 00000017 Process swapper (pid: 1, stack limit = 0xc032e250) Stack: (0xc032feb0 to 0xc0330000) fea0: c032ff4c c032fec0 c001bec8 c0139fa8 fec0: ffffffff c0f3b803 0000000a c032ff4c ffffffff 00000002 c0f3b800 ffffffff fee0: c032ff30 c032fef0 c00fa694 c00f9e88 0000000a ffffffff ffffffff 00000002 ff00: 3f0c47ff 00000000 c0f3b800 00000000 00000000 00000000 00000000 c0021290 ff20: c032ff3c c002619c c0f3b800 00000000 00000000 00000000 00000000 c0021290 ff40: c032ff6c c032ff50 c001c6e0 c001bdec c0026164 00000001 00000000 c00217a4 ff60: c032ff88 c032ff70 c001bb04 c001c660 00000001 00000000 c032e000 c032ffa0 ff80: c032ff8c c001bbd0 c001bad0 00000000 c0021208 c032fff4 c032ffa4 c0027100 ffa0: c001bb48 00000001 c0027e24 c003caf4 00000000 00000000 c0027058 c0043128 ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ffe0: 00000000 00000000 00000000 c032fff8 c0043128 c0027068 0a00003e e5dc3001 Backtrace: [] (readword+0x0/0x2c) from [] (cs89x0_probe1+0xec/0x874) [] (cs89x0_probe1+0x0/0x874) from [] (cs89x0_probe+0x90/0x1) [] (cs89x0_probe+0x0/0x108) from [] (probe_list2+0x44/0x78) r7 = C00217A4 r6 = 00000000 r5 = 00000001 r4 = C0026164 [] (probe_list2+0x0/0x78) from [] (net_olddevs_init+0x98/0x) r6 = C032E000 r5 = 00000000 r4 = 00000001 [] (net_olddevs_init+0x0/0xdc) from [] (init+0xa8/0x274) r5 = C0021208 r4 = 00000000 [] (init+0x0/0x274) from [] (do_exit+0x0/0x7d8) Code: e0801001 e3510201 e1a03001 328334f2 (e1d300b0) <0>Kernel panic - not syncing: Attempted to kill init! 前两天才在《Linux内核设计与实现》里看到的常见错误，想不到这么快就被我遇上...这里就是新版Linux第二个变化引起的错误。尝试更改映射的虚地址，无效。就在准备回去冲凉的瞬间，google里又出现一个好东西 ARM Linux Kernel Porting ，有原理图，有cs8900的实地址为0x19000000的解析（大致就是A24脚的高低电平控制cs8900开关，故+1000000），可惜是韩文，里面的文字不知说什么，但错误现象一样，根据里面的代码再修改cs89x0一遍（这个文件真的很乱了^_^）。十分可惜，还是不能在我睡前干一件好事... 早上精神好啊，又经过一番搜索，终于发现问题，原来实地址与虚地址的映射结构 smdk2410_iodesc 里有所变化。第二个参数从原来的 unsigned long physical 变为 unsigned long pfn 。而从 smdk2410_iodesc 传入的SMDK2410_PA_CS8900A_BASE 仍然是一个 physical 值，因此出现 Unable to handle kernel paging request 错误。这里很感谢http://bibu.blogchina.com/bibu/4914641.html的作者，根据提示，将实地址作一个小小变化就Ok了 ^_^ #ifndef __ASM_ARCH_SMDK2410_H #define __ASM_ARCH_SMDK2410_H #define SMDK2410_PA_CS8900A_BASE __phys_to_pfn(S3C2410_CS3 + 0x01000000) /* nGCS3 +0x01000000 */ #define SMDK2410_VA_CS8900A_BASE S3C2410_ADDR(0x04000000) /* 0xF4000000 */ #endif /* __ASM_ARCH_SMDK2410_H */ 虚地址改多少无所谓，如0xE0000000，只要不和其它设备冲突就行。 下面总结一下整个移植过程： 1. include/asm-arm/arch-s3c2410/map.h 添加： /* CS8900 */ #define S3C24XX_VA_CS8900 S3C2410_ADDR(0x04000000) #define S3C2410_PA_CS8900 __phys_to_pfn(0x19000000) #define S3C24XX_SZ_CS8900 SZ_1M #define S3C24XX_PA_CS8900 S3C2410_PA_CS8900 2. arch/arm/mach-s3c2410/mach-smdk2410.c 修改 static struct map_desc smdk2410_iodesc[] __initdata={ {S3C24XX_VA_CS8900IO, S3C2410_PA_CS8900, S3C24XX_SZ_CS8900, S3C24XX_SZ_CS8900, MT_DEVICE} }; 3. include/asm-arm/irq.h 添加 int set_irq_type(unsigned int irq, unsigned int type); 4. drivers/net/cs89x0.c 下面是我的 diff --- ../linux2/linux-2.6.19.2/drivers/net/cs89x0.c 2007-01-11 03:10:37.000000000 +0800 +++ drivers/net/cs89x0.c 2007-02-04 21:16:42.000000000 +0800 @@ -96,6 +96,9 @@ Dmitry Pervushin : dpervushin@ru.mvista.com : PNX010X platform support + Christian Pell : chripell@gmail.com + : SMDK2410 platform support, fixed bug with signed ioaddr + */ /* Always include 'config.h' first in case the user wants to turn on @@ -194,6 +197,27 @@ #define CIRRUS_DEFAULT_IRQ VH_INTC_INT_NUM_CASCADED_INTERRUPT_1 /* Event inputs bank 1 - ID 35/bit 3 */ static unsigned int netcard_portlist[] __initdata = {CIRRUS_DEFAULT_BASE, 0}; static unsigned int cs8900_irq_map[] = {CIRRUS_DEFAULT_IRQ, 0, 0, 0}; + +#elif defined(CONFIG_ARCH_S3C2410) //Added weibing +#include <linux/irq.h> +#include <asm/irq.h> +#include <asm/arch/irqs.h> +#include <asm/arch/regs-mem.h> +#include <asm/arch/regs-gpio.h> +#include <asm/arch/smdk2410-map.h> + +static unsigned int netcard_portlist[] __initdata = {S3C24XX_VA_CS8900+0x300, 0}; +static unsigned int cs8900_irq_map[] = {IRQ_EINT9, 0, 0, 0}; +/* +#ifdef request_region +#undef request_region +#endif +#ifdef release_region +#undef release_region +#endif +#define request_region(a,s,n) request_mem_region(a,s,n) +#define release_region(a,s) release_mem_region(a,s) +*/ #else static unsigned int netcard_portlist[] __initdata = { 0x300, 0x320, 0x340, 0x360, 0x200, 0x220, 0x240, 0x260, 0x280, 0x2a0, 0x2c0, 0x2e0, 0}; @@ -246,7 +270,7 @@ /* Index to functions, as function prototypes. */ -static int cs89x0_probe1(struct net_device *dev, int ioaddr, int modular); +static int cs89x0_probe1(struct net_device *dev, unsigned int ioaddr, int modular); static int net_open(struct net_device *dev); static int net_send_packet(struct sk_buff *skb, struct net_device *dev); static irqreturn_t net_interrupt(int irq, void *dev_id); @@ -324,6 +348,10 @@ io = dev->base_addr; irq = dev->irq; +#ifdef CONFIG_ARCH_S3C2410 //Added weibing + __raw_writel((__raw_readl(S3C2410_GPGCON)&~(0x3<<2))|(0x2<<2),S3C2410_GPGCON); + __raw_writel((__raw_readl(S3C2410_EXTINT1)&~(0x7<<4))|(0x4<<4),S3C2410_EXTINT1); +#endif if (net_debug) printk("cs89x0:cs89x0_probe(0x%x)\n", io); @@ -386,6 +414,18 @@ { outw(value, base_addr + (portno << 1)); } +#elif defined(CONFIG_ARCH_S3C2410) //Added weibing +static u16 +readword(unsigned long base_addr, int portno) +{ + return __raw_readw(base_addr+portno); +} + +static void +writeword(unsigned long base_addr, int portno,u16 value) +{ + __raw_writew(value,base_addr+portno); +} #else static u16 readword(unsigned long base_addr, int portno) @@ -507,7 +547,7 @@ */ static int __init -cs89x0_probe1(struct net_device *dev, int ioaddr, int modular) +cs89x0_probe1(struct net_device *dev, unsigned int ioaddr, int modular) { struct net_local *lp = netdev_priv(dev); static unsigned version_printed; @@ -638,7 +678,18 @@ the driver will always do *something* instead of complain that adapter_cnf is 0. */ -#ifdef CONFIG_SH_HICOSH4 +#if defined CONFIG_ARCH_S3C2410 + lp->force=FORCE_RJ45; + lp->auto_neg_cnf=IMM_BIT; + + dev->dev_addr[0]=0x09; /*setMACaddress*/ + dev->dev_addr[1]=0x90; + dev->dev_addr[2]=0x99; + dev->dev_addr[3]=0x09; + dev->dev_addr[4]=0x90; + dev->dev_addr[5]=0x99; + +#elif defined CONFIG_SH_HICOSH4 if (1) { /* For the HiCO.SH4 board, things are different: we don't have EEPROM, but there is some data in flash, so we go @@ -1036,7 +1087,7 @@ { #if !defined(CONFIG_MACH_IXDP2351) && !defined(CONFIG_ARCH_IXDP2X01) struct net_local *lp = netdev_priv(dev); - int ioaddr = dev->base_addr; + unsigned int ioaddr = dev->base_addr; #endif int reset_start_time; @@ -1278,7 +1329,7 @@ int i; int ret; -#if !defined(CONFIG_SH_HICOSH4) && !defined(CONFIG_ARCH_PNX010X) /* uses irq#1, so this won't work */ +#if !defined(CONFIG_SH_HICOSH4) && !defined(CONFIG_ARCH_PNX010X) && !defined(CONFIG_ARCH_S3C2410) /* uses irq#1, so this won't work */ if (dev->irq < 2) { /* Allow interrupts to be generated by the chip */ /* Cirrus' release had this: */ @@ -1309,7 +1360,7 @@ else #endif { -#if !defined(CONFIG_MACH_IXDP2351) && !defined(CONFIG_ARCH_IXDP2X01) && !defined(CONFIG_ARCH_PNX010X) +#if !defined(CONFIG_MACH_IXDP2351) && !defined(CONFIG_ARCH_IXDP2X01) && !defined(CONFIG_ARCH_PNX010X) && !defined(CONFIG_ARCH_S3C2410) if (((1 << dev->irq) & lp->irq_map) == 0) { printk(KERN_ERR "%s: IRQ %d is not in our map of allowable IRQs, which is %x\n", dev->name, dev->irq, lp->irq_map); @@ -1324,6 +1375,9 @@ writereg(dev, PP_BusCTL, ENABLE_IRQ | MEMORY_ON); #endif write_irq(dev, lp->chip_type, dev->irq); +#if defined(CONFIG_ARCH_S3C2410) + set_irq_type(dev->irq, IRQT_RISING); +#endif ret = request_irq(dev->irq, &net_interrupt, 0, dev->name, dev); if (ret) { if (net_debug) @@ -1394,7 +1448,7 @@ case A_CNF_MEDIA_10B_2: result = lp->adapter_cnf & A_CNF_10B_2; break; default: result = lp->adapter_cnf & (A_CNF_10B_T | A_CNF_AUI | A_CNF_10B_2); } -#ifdef CONFIG_ARCH_PNX010X +#if defined(CONFIG_ARCH_PNX0105) || defined(CONFIG_ARCH_S3C2410) result = A_CNF_10B_T; #endif if (!result) { @@ -1577,7 +1631,8 @@ { struct net_device *dev = dev_id; struct net_local *lp; - int ioaddr, status; + unsigned int ioaddr; + int status; int handled = 0; ioaddr = dev->base_addr; @@ -1683,7 +1738,7 @@ struct sk_buff *skb; int status, length; - int ioaddr = dev->base_addr; + unsigned int ioaddr = dev->base_addr; status = readword(ioaddr, RX_FRAME_PORT); length = readword(ioaddr, RX_FRAME_PORT); 5.重新编译，重新启动，重新happy... 好了，现在可以挂NFS了，玩玩去... ...... ...... 现在又有一不像问题的问题，网卡工作正常，但启动是提示申请 io 注册失败，request_region(0xf4000300, 0x10) failed 。 cs89x0:cs89x0_probe(0x0) cs89x0.c: v2.4.3-pre1 Russell Nelson <nelson@crynwr.com>, Andrew Morton eth0: cs8900 rev K found at 0xf4000300 cs89x0: Extended EEPROM checksum bad and no Cirrus EEPROM, relying on command le cs89x0 media RJ-45, IRQ 53, programmed I/O, MAC 09:90:99:09:90:99 cs89x0_probe1() successful cs89x0:cs89x0_probe(0x0) cs89x0: request_region(0xf4000300, 0x10) failed cs89x0: no cs8900 or cs8920 detected. Be sure to disable PnP with SETUP 更改虚地址也无效，追踪一下，在 kernel/resource.c 里出现问题。不知为什么资源冲突了，我看网上移植cs8900到2.4版也有这个问题...不理，先向下跳，回过头来在处理它... 443 for (;;) { 444 struct resource *conflict; 445 446 conflict = __request_resource(parent, res); 447 if (!conflict) 448 break; 449 if (conflict != parent) { 450 parent = conflict; 451 if (!(conflict->flags & IORESOURCE_BUSY)) 452 continue; 453 } 454 455 /* Uhhuh, that didn't work out.. */ 456 kfree(res); 457 res = NULL; 458 break; 459 } |
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2007-09-13 13:22:23, Thu
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#3
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猫猫猫 Group: Power Cat Posts: 626 Joined: 2006-12-8 Member No.: 2 |
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)，意外在u-boot的FAQ里看到这个 Ethernet does not work in Linux 。他说是不能获得MAC地址的问题，但我的网卡命名有一个09:90:99:09:90:99的地址！随便改一下，00:90:99:00:90:33， 想不到问题就这样解决... |
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