using 2 PWM signals

Harsha Herur
Hi,

I am currently looking at using the two pwms in tiny6410 to run 2 stepper
motors.
I have got PWM0 working using the mini6410_pwm.c driver provided by
friendly arm. But I am facing trouble using both simultaneously. It would
be a big help if anyone can provide a working example of this. Code to
generate signal on PWM1 would also greatly help.

code used for PWM0 :

  tmp = readl(S3C64XX_GPFCON);
  tmp &= ~(0x3U << 28);
  tmp |=  (0x2U << 28);
  writel(tmp, S3C64XX_GPFCON);

  tcon = __raw_readl(S3C_TCON);
  tcfg1 = __raw_readl(S3C_TCFG1);
  tcfg0 = __raw_readl(S3C_TCFG0);

  //prescaler = 50
  tcfg0 &= ~S3C_TCFG_PRESCALER0_MASK;
  tcfg0 |= (50 - 1); 

  //mux = 1/16
  tcfg1 &= ~S3C_TCFG1_MUX0_MASK;
  tcfg1 |= S3C_TCFG1_MUX0_DIV16;

  __raw_writel(tcfg1, S3C_TCFG1);
  __raw_writel(tcfg0, S3C_TCFG0);

  clk_p = clk_get(NULL, "pclk");
  pclk  = clk_get_rate(clk_p);
  tcnt  = (pclk/50/16)/freq;
  
  __raw_writel(tcnt, S3C_TCNTB(0));
  __raw_writel(tcnt/2, S3C_TCMPB(0));
        
  tcon &= ~0x1f;
  tcon |= 0xb;    //disable deadzone, auto-reload, inv-off, update
TCNTB0&TCMPB0, start timer 0
  __raw_writel(tcon, S3C_TCON);
  
  tcon &= ~2;      //clear manual update bit
  __raw_writel(tcon, S3C_TCON);

I dont require dead zone and DMA.

Thanks in advance,
Harsha