91525d084e
Interface used by Tegra's gadget driver and ehci driver to power on and configure the USB PHYs. Signed-off-by: Benoit Goby <benoit@android.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
86 lines
2.1 KiB
C
86 lines
2.1 KiB
C
/*
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* arch/arm/mach-tegra/include/mach/usb_phy.h
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*
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* Copyright (C) 2010 Google, Inc.
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*
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* This software is licensed under the terms of the GNU General Public
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* License version 2, as published by the Free Software Foundation, and
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* may be copied, distributed, and modified under those terms.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#ifndef __MACH_USB_PHY_H
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#define __MACH_USB_PHY_H
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#include <linux/clk.h>
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#include <linux/usb/otg.h>
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struct tegra_utmip_config {
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u8 hssync_start_delay;
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u8 elastic_limit;
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u8 idle_wait_delay;
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u8 term_range_adj;
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u8 xcvr_setup;
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u8 xcvr_lsfslew;
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u8 xcvr_lsrslew;
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};
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struct tegra_ulpi_config {
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int reset_gpio;
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const char *clk;
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};
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enum tegra_usb_phy_port_speed {
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TEGRA_USB_PHY_PORT_SPEED_FULL = 0,
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TEGRA_USB_PHY_PORT_SPEED_LOW,
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TEGRA_USB_PHY_PORT_SPEED_HIGH,
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};
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enum tegra_usb_phy_mode {
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TEGRA_USB_PHY_MODE_DEVICE,
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TEGRA_USB_PHY_MODE_HOST,
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};
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struct tegra_xtal_freq;
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struct tegra_usb_phy {
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int instance;
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const struct tegra_xtal_freq *freq;
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void __iomem *regs;
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void __iomem *pad_regs;
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struct clk *clk;
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struct clk *pll_u;
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struct clk *pad_clk;
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enum tegra_usb_phy_mode mode;
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void *config;
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struct otg_transceiver *ulpi;
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};
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struct tegra_usb_phy *tegra_usb_phy_open(int instance, void __iomem *regs,
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void *config, enum tegra_usb_phy_mode phy_mode);
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int tegra_usb_phy_power_on(struct tegra_usb_phy *phy);
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void tegra_usb_phy_clk_disable(struct tegra_usb_phy *phy);
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void tegra_usb_phy_clk_enable(struct tegra_usb_phy *phy);
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void tegra_usb_phy_power_off(struct tegra_usb_phy *phy);
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void tegra_usb_phy_preresume(struct tegra_usb_phy *phy);
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void tegra_usb_phy_postresume(struct tegra_usb_phy *phy);
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void tegra_ehci_phy_restore_start(struct tegra_usb_phy *phy,
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enum tegra_usb_phy_port_speed port_speed);
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void tegra_ehci_phy_restore_end(struct tegra_usb_phy *phy);
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void tegra_usb_phy_close(struct tegra_usb_phy *phy);
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#endif /* __MACH_USB_PHY_H */
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