diff options
Diffstat (limited to 'src/soc/samsung/exynos5420/usb.c')
| -rw-r--r-- | src/soc/samsung/exynos5420/usb.c | 69 |
1 files changed, 20 insertions, 49 deletions
diff --git a/src/soc/samsung/exynos5420/usb.c b/src/soc/samsung/exynos5420/usb.c index 0df63e2666..9313fea147 100644 --- a/src/soc/samsung/exynos5420/usb.c +++ b/src/soc/samsung/exynos5420/usb.c @@ -57,23 +57,13 @@ static void setup_dwc3(struct exynos5_usb_drd_dwc3 *dwc3) /* Set relevant registers to default values (clearing all reset bits) */ - writel(0x1 << 24 | /* activate PHY low power states */ - 0x4 << 19 | /* low power delay value */ - 0x1 << 18 | /* activate PHY low power delay */ - 0x1 << 17 | /* enable SuperSpeed PHY suspend */ - 0x1 << 1 | /* default Tx deemphasis value */ - 0, &dwc3->usb3pipectl); + write32(&dwc3->usb3pipectl, + 0x1 << 24 | 0x4 << 19 | 0x1 << 18 | 0x1 << 17 | 0x1 << 1 | 0); /* Configure PHY clock turnaround for 8-bit UTMI+, disable suspend */ - writel(0x9 << 10 | /* PHY clock turnaround for 8-bit UTMI+ */ - 0x1 << 8 | /* enable PHY sleep in L1 */ - 0x1 << 6 | /* enable PHY suspend */ - 0, &dwc3->usb2phycfg); - - writel(0x5dc << 19 | /* suspend clock scale for 24MHz */ - 0x1 << 16 | /* retry SS three times (bugfix from U-Boot) */ - 0x1 << 12 | /* port capability HOST */ - 0, &dwc3->ctl); + write32(&dwc3->usb2phycfg, 0x9 << 10 | 0x1 << 8 | 0x1 << 6 | 0); + + write32(&dwc3->ctl, 0x5dc << 19 | 0x1 << 16 | 0x1 << 12 | 0); } void setup_usb_drd0_dwc3() @@ -96,44 +86,25 @@ static void setup_drd_phy(struct exynos5_usb_drd_phy *phy) setbits_le32(&phy->linksystem, 0x1 << 27 | 0x20 << 1); /* Disable OTG, ID0 and DRVVBUS, do not force sleep/suspend */ - writel(1 << 6, &phy->utmi); - - writel(0x88 << 23 | /* spread spectrum refclk selector */ - 0x1 << 20 | /* enable spread spectrum */ - 0x1 << 19 | /* enable prescaler refclk */ - 0x68 << 11 | /* multiplier for 24MHz refclk */ - 0x5 << 5 | /* select 24MHz refclk (weird, from U-Boot) */ - 0x1 << 4 | /* power supply in normal operating mode */ - 0x3 << 2 | /* use external refclk (undocumented on 5420?)*/ - 0x1 << 1 | /* force port reset */ - 0x1 << 0 | /* normal operating mode */ - 0, &phy->clkrst); - - writel(0x9 << 26 | /* LOS level */ - 0x3 << 22 | /* TX VREF tune */ - 0x1 << 20 | /* TX rise tune */ - 0x1 << 18 | /* TX res tune */ - 0x3 << 13 | /* TX HS X Vtune */ - 0x3 << 9 | /* TX FS/LS tune */ - 0x3 << 6 | /* SQRX tune */ - 0x4 << 3 | /* OTG tune */ - 0x4 << 0 | /* comp disc tune */ - 0, &phy->param0); - - writel(0x7f << 19 | /* reserved */ - 0x7f << 12 | /* Tx launch amplitude */ - 0x20 << 6 | /* Tx deemphasis 6dB */ - 0x1c << 0 | /* Tx deemphasis 3.5dB (value from U-Boot) */ - 0, &phy->param1); + write32(&phy->utmi, 1 << 6); + + write32(&phy->clkrst, + 0x88 << 23 | 0x1 << 20 | 0x1 << 19 | 0x68 << 11 | 0x5 << 5 | 0x1 << 4 | 0x3 << 2 | 0x1 << 1 | 0x1 << 0 | 0); + + write32(&phy->param0, + 0x9 << 26 | 0x3 << 22 | 0x1 << 20 | 0x1 << 18 | 0x3 << 13 | 0x3 << 9 | 0x3 << 6 | 0x4 << 3 | 0x4 << 0 | 0); + + write32(&phy->param1, + 0x7f << 19 | 0x7f << 12 | 0x20 << 6 | 0x1c << 0 | 0); /* disable all test features */ - writel(0, &phy->test); + write32(&phy->test, 0); /* UTMI clock select? ("must be 0x1") */ - writel(0x1 << 2, &phy->utmiclksel); + write32(&phy->utmiclksel, 0x1 << 2); /* Samsung magic, undocumented (from U-Boot) */ - writel(0x0, &phy->resume); + write32(&phy->resume, 0x0); udelay(10); clrbits_le32(&phy->clkrst, 0x1 << 1); /* deassert port reset */ @@ -163,7 +134,7 @@ void setup_usb_host_phy(int hsic_gpio) printk(BIOS_DEBUG, "Powering up USB HOST PHY (%s HSIC)\n", hsic_gpio ? "with" : "without"); - hostphy_ctrl0 = readl(&exynos_usb_host_phy->usbphyctrl0); + hostphy_ctrl0 = read32(&exynos_usb_host_phy->usbphyctrl0); hostphy_ctrl0 &= ~(HOST_CTRL0_FSEL_MASK | HOST_CTRL0_COMMONON_N | /* HOST Phy setting */ @@ -177,7 +148,7 @@ void setup_usb_host_phy(int hsic_gpio) /* HOST Phy setting */ HOST_CTRL0_LINKSWRST | HOST_CTRL0_UTMISWRST); - writel(hostphy_ctrl0, &exynos_usb_host_phy->usbphyctrl0); + write32(&exynos_usb_host_phy->usbphyctrl0, hostphy_ctrl0); udelay(10); clrbits_le32(&exynos_usb_host_phy->usbphyctrl0, HOST_CTRL0_LINKSWRST | |