On Fri, 13 Sep 2013, wei_wang@xxxxxxxxxxxxxx wrote: > From: Wei WANG <wei_wang@xxxxxxxxxxxxxx> > > In some platforms, specially Thinkpad series, rts5249 won't be > initialized properly. So we need adjust some phy parameters to > improve the compatibility issue. > > It is a little different between simulation and real chip. We have > no idea about which configuration is better before tape-out. We set > default settings according to simulation, but need to tune these > parameters after getting the real chip. > > I can't explain every change in detail here. The below information is > just a rough description: > > PHY_REG_REV: Disable internal clkreq_tx, enable rx_pwst > PHY_BPCR: No change, just turn the magic number to macro definitions > PHY_PCR: Change OOBS sensitivity, from 60mV to 90mV > PHY_RCR2: Control charge-pump current automatically > PHY_FLD4: Use TX cmu reference clock > PHY_RDR: Change RXDSEL from 30nF to 1.9nF > PHY_RCR1: Change the duration between adp_st and asserting cp_en from > 0.32 us to 0.64us > PHY_FLD3: Adjust internal timers > PHY_TUNE: Fine tune the regulator12 output voltage > > Signed-off-by: Wei WANG <wei_wang@xxxxxxxxxxxxxx> > --- > drivers/mfd/rts5249.c | 48 ++++++++++++++++++++++++++++++++++++-- > include/linux/mfd/rtsx_pci.h | 53 ++++++++++++++++++++++++++++++++++++++++++ > 2 files changed, 99 insertions(+), 2 deletions(-) Much better. Applied, thanks. -- Lee Jones Linaro STMicroelectronics Landing Team Lead Linaro.org │ Open source software for ARM SoCs Follow Linaro: Facebook | Twitter | Blog _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
