diff options
| author | Suresh Mangipudi <smangipudi@nvidia.com> | 2011-09-14 14:33:45 +0530 |
|---|---|---|
| committer | Varun Colbert <vcolbert@nvidia.com> | 2011-09-14 17:00:27 -0700 |
| commit | fcded668224e1ea37ff8b239b32867afcd4081b0 (patch) | |
| tree | 4f070618cecc8d672ed188167123ffbb737228fd /arch | |
| parent | b57dc4b9ba62b4f8f37508e90c02ff390cc07f83 (diff) | |
usb: ehci: tegra: Hotplug detection
Removed the polling/PMC based method for the usb hotplug detection.
Bug 865094
Change-Id: Idad6eb4a25fc0c589b46f11d5d8a47a41b60f251
Reviewed-on: http://git-master/r/52284
Reviewed-by: Varun Colbert <vcolbert@nvidia.com>
Tested-by: Varun Colbert <vcolbert@nvidia.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-tegra/include/mach/usb_phy.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-tegra/usb_phy.c | 48 |
2 files changed, 0 insertions, 50 deletions
diff --git a/arch/arm/mach-tegra/include/mach/usb_phy.h b/arch/arm/mach-tegra/include/mach/usb_phy.h index 342d6c2bce43..dc1ec561a910 100644 --- a/arch/arm/mach-tegra/include/mach/usb_phy.h +++ b/arch/arm/mach-tegra/include/mach/usb_phy.h @@ -147,6 +147,4 @@ bool tegra_usb_phy_charger_detect(struct tegra_usb_phy *phy); int __init tegra_usb_phy_init(struct usb_phy_plat_data *pdata, int size); -bool tegra_usb_phy_is_device_detected(struct tegra_usb_phy *phy); - #endif /* __MACH_USB_PHY_H */ diff --git a/arch/arm/mach-tegra/usb_phy.c b/arch/arm/mach-tegra/usb_phy.c index 56819103ffeb..eb3d07887221 100644 --- a/arch/arm/mach-tegra/usb_phy.c +++ b/arch/arm/mach-tegra/usb_phy.c @@ -1200,10 +1200,6 @@ static int utmi_phy_power_off(struct tegra_usb_phy *phy, bool is_dpd) unsigned long val; void __iomem *base = phy->regs; -#ifndef CONFIG_ARCH_TEGRA_2x_SOC - if (phy->mode == TEGRA_USB_PHY_MODE_HOST) - utmip_setup_pmc_wake_detect(phy); -#endif if (phy->mode == TEGRA_USB_PHY_MODE_DEVICE) { val = readl(base + USB_SUSP_CTRL); val &= ~USB_WAKEUP_DEBOUNCE_COUNT(~0); @@ -1256,13 +1252,6 @@ static int utmi_phy_power_off(struct tegra_usb_phy *phy, bool is_dpd) val |= UTMIP_RESET; writel(val, base + USB_SUSP_CTRL); } -#ifndef CONFIG_ARCH_TEGRA_2x_SOC - if (phy->instance == 2) { - val = readl(base + USB_SUSP_CTRL); - val |= UTMIP_RESET; - writel(val, base + USB_SUSP_CTRL); - } -#endif utmip_pad_power_off(phy, true); return 0; } @@ -2526,40 +2515,3 @@ int __init tegra_usb_phy_init(struct usb_phy_plat_data *pdata, int size) return 0; } -bool tegra_usb_phy_is_device_detected(struct tegra_usb_phy *phy) -{ - bool ret = 0; -#ifndef CONFIG_ARCH_TEGRA_2x_SOC - void __iomem *pmc_base = IO_ADDRESS(TEGRA_PMC_BASE); - unsigned int inst = phy->instance; - u32 val; - - /* Change wake event to FSK */ - val = readl(pmc_base + PMC_SLEEP_CFG); - val |= UTMIP_WAKE_VAL(phy->instance, WAKE_VAL_FSK); - writel(val, pmc_base + PMC_SLEEP_CFG); - - /* The minimum time for the registers to get updated */ - udelay(130); - - val = readl(pmc_base + UTMIP_UHSIC_STATUS); - if ((UTMIP_USBON_VAL(phy->instance) | - UTMIP_USBOP_VAL(phy->instance)) &val) { - val = readl(pmc_base + PMC_SLEEP_CFG); - val &= ~UTMIP_WAKE_VAL(inst, 0x0); - val |= UTMIP_WAKE_VAL(inst, WAKE_VAL_NONE); - writel(val, pmc_base + PMC_SLEEP_CFG); - - val = readl(pmc_base + PMC_TRIGGERS); - val |= UTMIP_CLR_WAKE_ALARM(inst) | UTMIP_CLR_WALK_PTR(inst); - writel(val, pmc_base + PMC_TRIGGERS); - - val = readl(pmc_base + PMC_SLEEP_CFG); - val &= ~(UTMIP_MASTER_ENABLE(inst) |UTMIP_FSLS_USE_PMC(inst) | - UTMIP_RCTRL_USE_PMC(inst) |UTMIP_TCTRL_USE_PMC(inst)); - writel(val, pmc_base + PMC_SLEEP_CFG); - ret = 1; - } -#endif - return ret; -} |