Hi,
I'm trying to hook up passive LCD to pxa255, so I defined my LCD type and CONFIG_LCD in config and created vidinfo_t struct in cpu/pxa/pxafb.c. I compiled and burned it to flash. After reboot I get: U-Boot 1.0.2 (Jun 8 2004 - 23:06:10)
U-Boot code: A3F00000 -> A3F18530 BSS: -> A3F1BFB4 RAM Configuration: Bank #0: a0000000 64 MB Bank #1: a4000000 0 kB Bank #2: a8000000 0 kB Bank #3: ac000000 0 kB Flash: 32 MB [LCD] Initializing LCD frambuffer at 00000000 palette_mem_size = 0x00000200 Configuring PXA LCD vid: vl_col=320 hslen=3 lm=2 rm=3 vid: vl_row=240 vslen=1 um=0 bm=0 fbi->dmadesc_fblow = 0x149d0 fbi->dmadesc_fbhigh = 0x149e0 fbi->dmadesc_palette = 0x149f0 fbi->dmadesc_fblow->fdadr = 0x6d657263 fbi->dmadesc_fbhigh->fdadr = 0x6d6d fbi->dmadesc_palette->fdadr = 0x64646120 fbi->dmadesc_fblow->fsadr = 0x69746e65 fbi->dmadesc_fbhigh->fsadr = 0x2c622e5b fbi->dmadesc_palette->fsadr = 0x73736572 fbi->dmadesc_fblow->ldcmd = 0x0 fbi->dmadesc_fbhigh->ldcmd = 0x5d6c2e20 fbi->dmadesc_palette->ldcmd = 0x6d202d20 Setting GPIO for 8 bit data Enabling LCD controller FDADR0 = 0x64646120 FDADR1 = 0x000149d0 LCCR0 = 0x00301078 LCCR1 = 0x0102093f LCCR2 = 0x000000ef LCCR3 = 0x0340ff20 setcolreg: reg 0 @ 00014a00: R=00 G=00 B=00 => 6D65 setcolreg: reg 1 @ 00014a02: R=FF G=00 B=00 => 726F setcolreg: reg 2 @ 00014a04: R=00 G=FF B=00 => 2079 setcolreg: reg 3 @ 00014a06: R=FF G=FF B=00 => 6F6D setcolreg: reg 4 @ 00014a08: R=00 G=00 B=FF => 6964 setcolreg: reg 5 @ 00014a0a: R=FF G=00 B=FF => 7966 setcolreg: reg 6 @ 00014a0c: R=00 G=FF B=FF => 202C setcolreg: reg 14 @ 00014a1c: R=AA G=AA B=AA => 6461 setcolreg: reg 15 @ 00014a1e: R=FF G=FF B=FF => 7264 [LCD] Test Pattern: 320 x 240 [107 x 120] [LCD] Drawing the logo...
-- hang ?! -- No logo appears and no test pattern is visible (LCD is powered on and blanked/or with some horizontal lines drawn).
Has anybody successfuly connected passive LCD to pxa ?
regards ,himba