Ahh. Correct so that needs to be added to the EEPROM to work or a custom UBoot created for non conforming boards, those without EEPROM or EEPROM with different information in the EEPROM.
Thanks Robert for checking! Gerald . On Fri, Sep 5, 2014 at 12:38 PM, Robert Nelson <robertcnel...@gmail.com> wrote: > On Fri, Sep 5, 2014 at 12:32 PM, Gerald Coley <ger...@beagleboard.org> > wrote: > > SW is supposed to set it to 1.35V. Sounds like it got dropped somewhere > > because initially it did.. It was designed this way because when it was > > designed, the PMIC defaulted to 1.5V. Since the design there is a > TPS65217D > > that was release later that supports the 1.35V initial setting. > > It should be set here: > > > http://git.denx.de/?p=u-boot.git;a=blob;f=board/ti/am335x/board.c;h=0739e6021a21e71d7d0f5c840b793ce7fdf98fae;hb=HEAD#l275 > > 269 /* > 270 * Increase USB current limit to 1300mA or 1800mA and > set > 271 * the MPU voltage controller as needed. > 272 */ > 273 if (dpll_mpu_opp100.m == MPUPLL_M_1000) { > 274 usb_cur_lim = > TPS65217_USB_INPUT_CUR_LIMIT_1800MA; > 275 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV; > 276 } else { > 277 usb_cur_lim = > TPS65217_USB_INPUT_CUR_LIMIT_1300MA; > 278 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV; > 279 } > > > But that only happens if you have the "beaglebone black" header in eeprom: > > 262 /* > 263 * Override what we have detected since we know if we > have > 264 * a Beaglebone Black it supports 1GHz. > 265 */ > 266 if (board_is_bone_lt(&header)) > > So you'll have to override that check. > > Regards, > > -- > Robert Nelson > http://www.rcn-ee.com/ > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
