pwm驱动编译出错？

pwm部分驱动程序：

    // TOUT0口设置
     s3c2410_gpio_cfgpin(S3C2410_GPB0,S3C2410_GPB0_TOUT0);
    
       // 设置定时器0,即PWM周期和占空比
    // Fclk=400MHz，时钟分频配置为1:4:8，即Pclk=50MHz。
    S3C2410_TCFG0=249;        //59行：预分频器0设置为98，取得200kHz
    S3C2410_TCFG1 = 1;            // 60行：TIMER0再取1/4分频，取得50kHz
    S3C2410_TCMPB0 = 19;       // 61行 ：设置PWM占空比
    S3C2410_TCNTB0 = 38;    // 62行：定时值(PWM周期)
    if(S3C2410_TCON&0x04) S3C2410_TCON = (1<<1);        // 更新定时器数据 (取反输出inverter位)
      else  S3C2410_TCON = (1<<2)|(1<<1);            
    S3C2410_TCON = (1<<0)|(1<<3);                // 启动定时器

make modules时出错如下：
[root@localhost kernel-2.6.13]# make modules
  CHK     include/linux/version.h
make[1]: “arch/arm/kernel/asm-offsets.s”是最新的。
make[1]: “include/asm-arm/mach-types.h”是最新的。
  CC [M]  drivers/char/qq2440_pwm_stepper.o
drivers/char/qq2440_pwm_stepper.c: In function `qq2440_leds_ioctl':
drivers/char/qq2440_pwm_stepper.c:54: warning: implicit declaration of function `s3c2410_gpio_cfgpS3C2410_in'
drivers/char/qq2440_pwm_stepper.c:59: error: invalid lvalue in assignment
drivers/char/qq2440_pwm_stepper.c:60: error: invalid lvalue in assignment
drivers/char/qq2440_pwm_stepper.c:61: error: invalid lvalue in assignment
drivers/char/qq2440_pwm_stepper.c:62: error: invalid lvalue in assignment
drivers/char/qq2440_pwm_stepper.c:63: error: invalid operands to binary &
drivers/char/qq2440_pwm_stepper.c:63: error: invalid lvalue in assignment
drivers/char/qq2440_pwm_stepper.c:64: error: invalid lvalue in assignment
drivers/char/qq2440_pwm_stepper.c:65: error: invalid lvalue in assignment
drivers/char/qq2440_pwm_stepper.c:76: warning: ISO C90 forbids mixed declarations and code
drivers/char/qq2440_pwm_stepper.c: In function `qq2440_leds_init':
drivers/char/qq2440_pwm_stepper.c:81: warning: unused variable `i'
drivers/char/qq2440_pwm_stepper.c: In function `qq2440_leds_ioctl':
drivers/char/qq2440_pwm_stepper.c:104: warning: ISO C90 forbids mixed declarations and code
drivers/char/qq2440_pwm_stepper.c:104: error: parse error at end of input
make[2]: *** [drivers/char/qq2440_pwm_stepper.o] 错误 1
make[1]: *** [drivers/char] 错误 2
make: *** [drivers] 错误 2

其中的主要两个错误就是：invalid lvalue in assignment和invalid operands to binary &，试了3.4.1和2.95.3都不行，请问S3C2410_TCFG0这个寄存器不可以直接赋值吗？
请各位大虾指教！谢谢！！！

还是用最新内核吧Linux-2.6.29
下载地址：
http://www.arm9.net/download-linux-2.6.29.asp

这个跟内核关系吗？
我的问题是linux下怎样对pwm的寄存器操作？gpio有写好的函数如s3c2410_gpio_cfgpin()对io口控制，在kernel-2.6.13/arch/arm/mach-s3c2410/gpio.c文件中，那如何对pwm控制呢？好像没有pwm.c这个文件的？
如果没有写好的函数，那么要对pwm的寄存器操作S3C2410_TCFG0，S3C2410_TCFG1是不是可以直接赋值？（这些寄存器在kernel-2.6.13\include\asm-arm\arch-s3c2410\regs-timer.h里有定义：#define S3C2410_TCFG0          S3C2410_TIMERREG(0x00)
#define S3C2410_TCFG1          S3C2410_TIMERREG(0x04)）还是linux下还现需要先进行ioremap（）进行地址重映射？