static int __maybe_unused exynos_usb_hsic_init(struct platform_device *pdev)
{
u32 rstcon, hsic_ctrl;
if (soc_is_exynos4212() || soc_is_exynos4412()) {
exynos_usb_phy_control(USB_PHY_HSIC0
| USB_PHY_HSIC1,
PHY_ENABLE);
/* reset both PHY and Link of Host */
rstcon = readl(EXYNOS4_RSTCON)
| EXYNOS4212_PHY1_HSIC0_SWRST
| EXYNOS4212_PHY1_HSIC1_SWRST;
writel(rstcon, EXYNOS4_RSTCON);
udelay(10);
rstcon &= ~(EXYNOS4212_PHY1_HSIC0_SWRST
| EXYNOS4212_PHY1_HSIC1_SWRST);
writel(rstcon, EXYNOS4_RSTCON);
} else {
/* HSIC phy reset */
hsic_ctrl = (HSIC_CTRL_REFCLKDIV(0x24) | HSIC_CTRL_REFCLKSEL(0x2) |
HSIC_CTRL_PHYSWRST);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL1);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL2);
udelay(10);
hsic_ctrl &= ~(HSIC_CTRL_PHYSWRST);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL1);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL2);
}
return 0;
}
static int exynos5_usb_phy20_exit(struct platform_device *pdev)
{
u32 hostphy_ctrl0, otgphy_sys, hsic_ctrl;
if (atomic_dec_return(&host_usage) > 0) {
dev_info(&pdev->dev, "still being used\n");
return -EBUSY;
}
hsic_ctrl = (HSIC_CTRL_REFCLKDIV(0x24) | HSIC_CTRL_REFCLKSEL(0x2) |
HSIC_CTRL_SIDDQ | HSIC_CTRL_FORCESLEEP | HSIC_CTRL_FORCESUSPEND);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL1);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL2);
hostphy_ctrl0 = readl(EXYNOS5_PHY_HOST_CTRL0);
hostphy_ctrl0 |= (HOST_CTRL0_SIDDQ);
hostphy_ctrl0 |= (HOST_CTRL0_FORCESUSPEND | HOST_CTRL0_FORCESLEEP);
hostphy_ctrl0 |= (HOST_CTRL0_PHYSWRST | HOST_CTRL0_PHYSWRSTALL);
writel(hostphy_ctrl0, EXYNOS5_PHY_HOST_CTRL0);
otgphy_sys = readl(EXYNOS5_PHY_OTG_SYS);
otgphy_sys |= (OTG_SYS_FORCE_SUSPEND | OTG_SYS_SIDDQ_UOTG | OTG_SYS_FORCE_SLEEP);
writel(otgphy_sys, EXYNOS5_PHY_OTG_SYS);
exynos_usb_phy_control(USB_PHY1, PHY_DISABLE);
return 0;
}
static int exynos5_usb_phy20_exit(struct platform_device *pdev)
{
u32 hostphy_ctrl0;
u32 otgphy_sys;
u32 hsic_ctrl;
hsic_ctrl = (HSIC_CTRL_REFCLKDIV(0x24) | HSIC_CTRL_REFCLKSEL(0x2) |
HSIC_CTRL_SIDDQ | HSIC_CTRL_FORCESLEEP | HSIC_CTRL_FORCESUSPEND);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL1);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL2);
hostphy_ctrl0 = readl(EXYNOS5_PHY_HOST_CTRL0);
hostphy_ctrl0 |= (HOST_CTRL0_SIDDQ);
hostphy_ctrl0 |= (HOST_CTRL0_FORCESUSPEND | HOST_CTRL0_FORCESLEEP);
hostphy_ctrl0 |= (HOST_CTRL0_PHYSWRST | HOST_CTRL0_PHYSWRSTALL);
writel(hostphy_ctrl0, EXYNOS5_PHY_HOST_CTRL0);
otgphy_sys = readl(EXYNOS5_PHY_OTG_SYS);
otgphy_sys |= (OTG_SYS_FORCE_SUSPEND | OTG_SYS_SIDDQ_UOTG | OTG_SYS_FORCE_SLEEP);
writel(otgphy_sys, EXYNOS5_PHY_OTG_SYS);
exynos4_usb_phy_control(USB_PHY1, PHY_DISABLE);
return 0;
}
static int __maybe_unused exynos_usb_hsic_exit(struct platform_device *pdev)
{
u32 hsic_ctrl;
if (soc_is_exynos4212() || soc_is_exynos4412()) {
exynos_usb_phy_control(USB_PHY_HSIC0
| USB_PHY_HSIC1,
PHY_DISABLE);
} else {
hsic_ctrl = (HSIC_CTRL_REFCLKDIV(0x24) | HSIC_CTRL_REFCLKSEL(0x2) |
HSIC_CTRL_SIDDQ | HSIC_CTRL_FORCESLEEP | HSIC_CTRL_FORCESUSPEND);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL1);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL2);
}
return 0;
}
static int exynos5_usb_phy20_init(struct platform_device *pdev)
{
u32 refclk_freq;
u32 hostphy_ctrl0, otgphy_sys, hsic_ctrl, ehcictrl, ohcictrl;
atomic_inc(&host_usage);
if (exynos5_usb_host_phy20_is_on()) {
dev_err(&pdev->dev, "Already power on PHY\n");
return 0;
}
exynos_usb_mux_change(pdev, 1);
exynos_usb_phy_control(USB_PHY1, PHY_ENABLE);
/* Host and Device should be set at the same time */
hostphy_ctrl0 = readl(EXYNOS5_PHY_HOST_CTRL0);
hostphy_ctrl0 &= ~(HOST_CTRL0_FSEL_MASK);
otgphy_sys = readl(EXYNOS5_PHY_OTG_SYS);
otgphy_sys &= ~(OTG_SYS_CTRL0_FSEL_MASK);
/* 2.0 phy reference clock configuration */
refclk_freq = exynos_usb_phy_set_clock(pdev);
hostphy_ctrl0 |= (refclk_freq << HOST_CTRL0_CLKSEL_SHIFT);
otgphy_sys |= (refclk_freq << OTG_SYS_CLKSEL_SHIFT);
/* COMMON Block configuration during suspend */
hostphy_ctrl0 |= HOST_CTRL0_COMMONON_N;
otgphy_sys &= ~(OTG_SYS_COMMON_ON);
/* otg phy reset */
otgphy_sys &= ~(OTG_SYS_FORCE_SUSPEND | OTG_SYS_SIDDQ_UOTG | OTG_SYS_FORCE_SLEEP);
otgphy_sys &= ~(OTG_SYS_REF_CLK_SEL_MASK);
otgphy_sys |= (OTG_SYS_REF_CLK_SEL(0x2) | OTG_SYS_OTGDISABLE);
otgphy_sys |= (OTG_SYS_PHY0_SW_RST | OTG_SYS_LINK_SW_RST_UOTG | OTG_SYS_PHYLINK_SW_RESET);
writel(otgphy_sys, EXYNOS5_PHY_OTG_SYS);
udelay(10);
otgphy_sys &= ~(OTG_SYS_PHY0_SW_RST | OTG_SYS_LINK_SW_RST_UOTG | OTG_SYS_PHYLINK_SW_RESET);
writel(otgphy_sys, EXYNOS5_PHY_OTG_SYS);
/* host phy reset */
hostphy_ctrl0 &= ~(HOST_CTRL0_PHYSWRST | HOST_CTRL0_PHYSWRSTALL | HOST_CTRL0_SIDDQ);
hostphy_ctrl0 &= ~(HOST_CTRL0_FORCESUSPEND | HOST_CTRL0_FORCESLEEP);
hostphy_ctrl0 |= (HOST_CTRL0_LINKSWRST | HOST_CTRL0_UTMISWRST);
writel(hostphy_ctrl0, EXYNOS5_PHY_HOST_CTRL0);
udelay(10);
hostphy_ctrl0 &= ~(HOST_CTRL0_LINKSWRST | HOST_CTRL0_UTMISWRST);
writel(hostphy_ctrl0, EXYNOS5_PHY_HOST_CTRL0);
/* HSIC phy reset */
hsic_ctrl = (HSIC_CTRL_REFCLKDIV(0x24) | HSIC_CTRL_REFCLKSEL(0x2) |
HSIC_CTRL_PHYSWRST);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL1);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL2);
udelay(10);
hsic_ctrl &= ~(HSIC_CTRL_PHYSWRST);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL1);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL2);
udelay(80);
/* enable EHCI DMA burst */
ehcictrl = readl(EXYNOS5_PHY_HOST_EHCICTRL);
ehcictrl |= (EHCICTRL_ENAINCRXALIGN | EHCICTRL_ENAINCR4 |
EHCICTRL_ENAINCR8 | EHCICTRL_ENAINCR16);
writel(ehcictrl, EXYNOS5_PHY_HOST_EHCICTRL);
/* set ohci_suspend_on_n */
ohcictrl = readl(EXYNOS5_PHY_HOST_OHCICTRL);
ohcictrl |= OHCICTRL_SUSPLGCY;
writel(ohcictrl, EXYNOS5_PHY_HOST_OHCICTRL);
return 0;
}
static int exynos5_usb_phy20_init(struct platform_device *pdev)
{
struct clk *ext_xtal;
u32 refclk_freq;
u32 hostphy_ctrl0;
u32 otgphy_sys;
u32 hsic_ctrl;
u32 ehcictrl;
exynos4_usb_phy_control(USB_PHY1, PHY_ENABLE);
if (exynos5_usb_host_phy20_is_on()) {
dev_err(&pdev->dev, "Already power on PHY\n");
return 0;
}
exynos_usb_mux_change(pdev, 1);
/* Host and Device should be set at the same time */
hostphy_ctrl0 = readl(EXYNOS5_PHY_HOST_CTRL0);
hostphy_ctrl0 &= ~(HOST_CTRL0_FSEL_MASK);
otgphy_sys = readl(EXYNOS5_PHY_OTG_SYS);
otgphy_sys &= ~(OTG_SYS_CTRL0_FSEL_MASK);
/* 2.0 phy reference clock configuration */
ext_xtal = clk_get(&pdev->dev, "ext_xtal");
switch (clk_get_rate(ext_xtal)) {
case 96 * 100000:
refclk_freq = EXYNOS5_CLKSEL_9600K;
break;
case 10 * MHZ:
refclk_freq = EXYNOS5_CLKSEL_10M;
break;
case 12 * MHZ:
refclk_freq = EXYNOS5_CLKSEL_12M;
break;
case 192 * 100000:
refclk_freq = EXYNOS5_CLKSEL_19200K;
break;
case 20 * MHZ:
refclk_freq = EXYNOS5_CLKSEL_20M;
break;
case 24 * MHZ:
refclk_freq = EXYNOS5_CLKSEL_24M;
break;
default:
case 50 * MHZ:
/* default reference clock */
refclk_freq = EXYNOS5_CLKSEL_50M;
break;
}
hostphy_ctrl0 |= (refclk_freq << HOST_CTRL0_CLKSEL_SHIFT);
otgphy_sys |= (refclk_freq << OTG_SYS_CLKSEL_SHIFT);
/* COMMON Block configuration during suspend */
hostphy_ctrl0 &= ~(HOST_CTRL0_COMMONON_N);
otgphy_sys |= (OTG_SYS_COMMON_ON);
/* otg phy reset */
otgphy_sys &= ~(OTG_SYS_FORCE_SUSPEND | OTG_SYS_SIDDQ_UOTG | OTG_SYS_FORCE_SLEEP);
otgphy_sys &= ~(OTG_SYS_REF_CLK_SEL_MASK);
otgphy_sys |= (OTG_SYS_REF_CLK_SEL(0x2) | OTG_SYS_OTGDISABLE);
otgphy_sys |= (OTG_SYS_PHY0_SW_RST | OTG_SYS_LINK_SW_RST_UOTG | OTG_SYS_PHYLINK_SW_RESET);
writel(otgphy_sys, EXYNOS5_PHY_OTG_SYS);
udelay(10);
otgphy_sys &= ~(OTG_SYS_PHY0_SW_RST | OTG_SYS_LINK_SW_RST_UOTG | OTG_SYS_PHYLINK_SW_RESET);
writel(otgphy_sys, EXYNOS5_PHY_OTG_SYS);
/* host phy reset */
hostphy_ctrl0 &= ~(HOST_CTRL0_PHYSWRST | HOST_CTRL0_PHYSWRSTALL | HOST_CTRL0_SIDDQ);
hostphy_ctrl0 &= ~(HOST_CTRL0_FORCESUSPEND | HOST_CTRL0_FORCESLEEP);
hostphy_ctrl0 |= (HOST_CTRL0_LINKSWRST | HOST_CTRL0_UTMISWRST);
writel(hostphy_ctrl0, EXYNOS5_PHY_HOST_CTRL0);
udelay(10);
hostphy_ctrl0 &= ~(HOST_CTRL0_LINKSWRST | HOST_CTRL0_UTMISWRST);
writel(hostphy_ctrl0, EXYNOS5_PHY_HOST_CTRL0);
/* HSIC phy reset */
hsic_ctrl = (HSIC_CTRL_REFCLKDIV(0x24) | HSIC_CTRL_REFCLKSEL(0x2) |
HSIC_CTRL_PHYSWRST);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL1);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL2);
udelay(10);
hsic_ctrl &= ~(HSIC_CTRL_PHYSWRST);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL1);
writel(hsic_ctrl, EXYNOS5_PHY_HSIC_CTRL2);
udelay(80);
ehcictrl = readl(EXYNOS5_PHY_HOST_EHCICTRL);
ehcictrl |= (EHCICTRL_ENAINCRXALIGN | EHCICTRL_ENAINCR4 |
EHCICTRL_ENAINCR8 | EHCICTRL_ENAINCR16);
writel(ehcictrl, EXYNOS5_PHY_HOST_EHCICTRL);
return 0;
}