static int
dwc3_init(struct exynos_xhci_softc *esc)
{
int hwparams1;
int rev;
int reg;
rev = READ4(esc, GSNPSID);
if ((rev & GSNPSID_MASK) != 0x55330000) {
printf("It is not DWC3 controller\n");
return (-1);
}
/* Reset controller */
WRITE4(esc, GCTL, GCTL_CORESOFTRESET);
WRITE4(esc, GUSB3PIPECTL(0), GUSB3PIPECTL_PHYSOFTRST);
WRITE4(esc, GUSB2PHYCFG(0), GUSB2PHYCFG_PHYSOFTRST);
DELAY(100000);
reg = READ4(esc, GUSB3PIPECTL(0));
reg &= ~(GUSB3PIPECTL_PHYSOFTRST);
WRITE4(esc, GUSB3PIPECTL(0), reg);
reg = READ4(esc, GUSB2PHYCFG(0));
reg &= ~(GUSB2PHYCFG_PHYSOFTRST);
WRITE4(esc, GUSB2PHYCFG(0), reg);
reg = READ4(esc, GCTL);
reg &= ~GCTL_CORESOFTRESET;
WRITE4(esc, GCTL, reg);
hwparams1 = READ4(esc, GHWPARAMS1);
reg = READ4(esc, GCTL);
reg &= ~(GCTL_SCALEDOWN_MASK << GCTL_SCALEDOWN_SHIFT);
reg &= ~(GCTL_DISSCRAMBLE);
if (GHWPARAMS1_EN_PWROPT(hwparams1) == \
GHWPARAMS1_EN_PWROPT_CLK)
reg &= ~(GCTL_DSBLCLKGTNG);
if ((rev & REVISION_MASK) < 0x190a)
reg |= (GCTL_U2RSTECN);
WRITE4(esc, GCTL, reg);
/* Set host mode */
reg = READ4(esc, GCTL);
reg &= ~(GCTL_PRTCAPDIR(GCTL_PRTCAP_OTG));
reg |= GCTL_PRTCAPDIR(GCTL_PRTCAP_HOST);
WRITE4(esc, GCTL, reg);
return (0);
}
dump_register(GUSB2PHYACC(2)), dump_register(GUSB2PHYACC(3)), dump_register(GUSB2PHYACC(4)), dump_register(GUSB2PHYACC(5)), dump_register(GUSB2PHYACC(6)), dump_register(GUSB2PHYACC(7)), dump_register(GUSB2PHYACC(8)), dump_register(GUSB2PHYACC(9)), dump_register(GUSB2PHYACC(10)), dump_register(GUSB2PHYACC(11)), dump_register(GUSB2PHYACC(12)), dump_register(GUSB2PHYACC(13)), dump_register(GUSB2PHYACC(14)), dump_register(GUSB2PHYACC(15)), dump_register(GUSB3PIPECTL(0)), dump_register(GUSB3PIPECTL(1)), dump_register(GUSB3PIPECTL(2)), dump_register(GUSB3PIPECTL(3)), dump_register(GUSB3PIPECTL(4)), dump_register(GUSB3PIPECTL(5)), dump_register(GUSB3PIPECTL(6)), dump_register(GUSB3PIPECTL(7)), dump_register(GUSB3PIPECTL(8)), dump_register(GUSB3PIPECTL(9)), dump_register(GUSB3PIPECTL(10)), dump_register(GUSB3PIPECTL(11)), dump_register(GUSB3PIPECTL(12)), dump_register(GUSB3PIPECTL(13)), dump_register(GUSB3PIPECTL(14)), dump_register(GUSB3PIPECTL(15)),
