Hi Nikita, On 07/23/15 17:19, Nikita Kiryanov wrote: > U-Boot does not explicitly assign the display to an IPU interface. Instead, it > relies on the power-on default of DI0. > > Since the kernel reassigns HDMI display to DI1, after a warm reset the HDMI > display no longer works in U-Boot. > > Fix this by explicitly assigning HDMI to IPU1 DI0 in U-Boot. > > Cc: Stefano Babic <sba...@denx.de> > Cc: Igor Grinberg <grinb...@compulab.co.il> > Signed-off-by: Nikita Kiryanov <nik...@compulab.co.il> > --- > board/compulab/cm_fx6/cm_fx6.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/board/compulab/cm_fx6/cm_fx6.c b/board/compulab/cm_fx6/cm_fx6.c > index 7a1bbaf..b500f91 100644 > --- a/board/compulab/cm_fx6/cm_fx6.c > +++ b/board/compulab/cm_fx6/cm_fx6.c > @@ -83,6 +83,7 @@ size_t display_count = ARRAY_SIZE(displays); > static void cm_fx6_setup_display(void) > { > struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; > + struct iomuxc *const iomuxc_regs = (struct iomuxc *)IOMUXC_BASE_ADDR; > int reg; > > enable_ipu_clock(); > @@ -90,6 +91,7 @@ static void cm_fx6_setup_display(void) > reg = __raw_readl(&mxc_ccm->CCGR3); > reg |= MXC_CCM_CCGR3_IPU1_IPU_DI0_MASK; > writel(reg, &mxc_ccm->CCGR3); > + clrbits_le32(&iomuxc_regs->gpr[3], MXC_CCM_CCGR3_IPU1_IPU_DI0_MASK);
I would like to see this done through a display framework of some kind... But since there none... Acked-by: Igor Grinberg <grinb...@compulab.co.il> > } > #else > static inline void cm_fx6_setup_display(void) {} > -- Regards, Igor. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot