On 25/01/2015 02:07, Graeme Russ wrote: > Section 4.1.2 of Freescale Application Note AN4199 describes the > configuration required to operate the mx28 from a 5V source without a > battery. > > This patch changes the behaviour of the dropout control of the DC-DC > converter (refer to section 11.12.9 of the mx28 Application Processor > Reference Manual - Document Number: MCIMX28RM, Rev 2, 08/2013) to the > following: > - Always use 4P2 Linear Regulator if CONFIG_SYS_MXS_VDD5V_ONLY is defined > - Switch between 4P2 Linear Regulator and Battery, using whichever has > the highest voltage if CONFIG_SYS_MXS_VDD5V_ONLY isnot set (this is > the same as the pre-patch behaviour) > > Signed-off-by: Graeme Russ <gr...@tss-engineering.com> > Signed-off-by: Damien Gotfroi <dgotf...@greenwatch.be> > --- > > Changes in v2 > - Implemented Damien Gotfroi's simplified version > > Changes in v3 > - Updated commit message > - Explicitly use POWER_DCDC4P2_DROPOUT_CTRL_SRC_4P2 for the > DCDC4P2_DROPOUT_CONFIG define (it is 0x0 so it make no functional > difference) > > ---
Applied to u-boot-imx, thanks ! Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, Managing Director: Wolfgang Denk HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-53 Fax: +49-8142-66989-80 Email: sba...@denx.de ===================================================================== _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
