Author: quozl Date: Mon May 18 00:06:06 2015 New Revision: 3772 URL: http://tracker.coreboot.org/trac/openfirmware/changeset/3772
Log: OLPC XO - siv121c minimal register changes documentation, no functional change
Modified: dev/olpc/seti.fth
Modified: dev/olpc/seti.fth ============================================================================== --- dev/olpc/seti.fth Thu Mar 12 05:40:34 2015 (r3771) +++ dev/olpc/seti.fth Mon May 18 00:06:06 2015 (r3772) @@ -652,6 +652,48 @@ then ;
+0 [if] +\ unused, minimal register changes to get siv121c to work after power up +: siv121c-config ( ycrcb? -- ) + >r ( r: ycrcb? ) + + 01 00 ov! \ BLK_SEL - block address bank selector - Timing Control Block + 02 03 ov! \ CNTR_A - Control global reset and device enable - + \ global reset, idle mode with clock disabled. + + 00 00 ov! \ BLK_SEL - block address bank selector - PMU block + 04 03 ov! \ CHIP_CNTR - Chip control - + \ enable output pads, disable software stand-by power-down mode. + + \ TCB + 01 00 ov! \ BLK_SEL - block address bank selector - Timing Control Block + c1 07 ov! \ recommend, BLC_CAL + 1e 10 ov! \ recommend, ramp_ref + 81 11 ov! \ recommend, ramp_sig_start level + 84 17 ov! \ recommend, abs_cntr1 + + \ AE + 02 00 ov! + 04 11 ov! \ MAX_SHUTSTEP + \ minimum exposure time when automatic exposure in use, reduce to increase frame rate at low light levels at the expense of image brightness + + \ IDP + 04 00 ov! + ( r: ycrcb? ) r> if ( ) + 25 12 ov! \ OUTFMT, set for yuv422 mode + else + 83 12 ov! \ OUTFMT, RGB565 setting + then + 7f 10 ov! \ IPFUN + + \ Sensor On + 01 00 ov! \ BLK_SEL - block address bank selector - Control Block + 01 03 ov! \ CNTR_A - Control global reset and device enable - + \ no reset, dynamic mode with clock enabled + +; +[then] + : siv121d-config ( ycrcb? -- ) >r ( r: ucrcb? )