diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/soc.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index 0d1801c..06a9e6d 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -638,7 +638,8 @@ void imx_setup_hdmi(void) { struct mxc_ccm_reg *mxc_ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; struct hdmi_regs *hdmi = (struct hdmi_regs *)HDMI_ARB_BASE_ADDR; - int reg; + int reg, count; + u8 val; /* Turn on HDMI PHY clock */ reg = readl(&mxc_ccm->CCGR2); @@ -655,6 +656,15 @@ void imx_setup_hdmi(void) |(CHSCCDR_IPU_PRE_CLK_540M_PFD << MXC_CCM_CHSCCDR_IPU1_DI0_PRE_CLK_SEL_OFFSET); writel(reg, &mxc_ccm->chsccdr); + + /* Workaround to clear the overflow condition */ + if (readb(&hdmi->ih_fc_stat2) & HDMI_IH_FC_STAT2_OVERFLOW_MASK) { + /* TMDS software reset */ + writeb((u8)~HDMI_MC_SWRSTZ_TMDSSWRST_REQ, &hdmi->mc_swrstz); + val = readb(&hdmi->fc_invidconf); + for (count = 0 ; count < 5 ; count++) + writeb(val, &hdmi->fc_invidconf); + } } #endif |