static int xres, yres;
+void diu_set_pixel_clock(unsigned int pixclock)
+{
+ volatile immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
+ volatile ccsr_gur_t *gur = &immap->im_gur;
+ volatile unsigned int *guts_clkdvdr = &gur->clkdvdr;
+ unsigned long speed_ccb, temp, pixval;
+
+ speed_ccb = get_bus_freq(0);
+ temp = 1000000000/pixclock;
+ temp *= 1000;
+ pixval = speed_ccb / temp;
+ debug("DIU pixval = %lu\n", pixval);
+
+ /* Modify PXCLK in GUTS CLKDVDR */
+ debug("DIU: Current value of CLKDVDR = 0x%08x\n", *guts_clkdvdr);
+ temp = *guts_clkdvdr & 0x2000FFFF;
+ *guts_clkdvdr = temp; /* turn off clock */
+ *guts_clkdvdr = temp | 0x80000000 | ((pixval & 0x1F) << 16);
+ debug("DIU: Modified value of CLKDVDR = 0x%08x\n", *guts_clkdvdr);
+}
void mpc8610hpcd_diu_init(void)
{
unsigned int addr;
if (argc < 2) {
- printf ("Usage:\n%s\n", cmdtp->usage);
+ cmd_usage(cmdtp);
return 1;
}
}
U_BOOT_CMD(
- diufb, CFG_MAXARGS, 1, mpc8610diu_init_show_bmp,
- "diufb init | addr - Init or Display BMP file\n",
+ diufb, CONFIG_SYS_MAXARGS, 1, mpc8610diu_init_show_bmp,
+ "Init or Display BMP file",
"init\n - initialize DIU\n"
"addr\n - display bmp at address 'addr'\n"
);