3a55c6a8b9
Tegra20 USB has 3 PHY instances. Instance 0 is based on legacy PHY interface and other two are standard interfaces. As instance number was used to differentiate legacy from standard interfaces, used DT param to get this info and processed accordingly. Signed-off-by: Venu Byravarasu <vbyravarasu@nvidia.com> Acked-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Stephen Warren <swarren@nvidia.com>
77 lines
1.8 KiB
C
77 lines
1.8 KiB
C
/*
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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 __TEGRA_USB_PHY_H
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#define __TEGRA_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 usb_phy *ulpi;
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struct usb_phy u_phy;
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struct device *dev;
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bool is_legacy_phy;
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};
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struct tegra_usb_phy *tegra_usb_phy_open(struct device *dev, int instance,
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void __iomem *regs, void *config, enum tegra_usb_phy_mode phy_mode);
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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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#endif /* __TEGRA_USB_PHY_H */
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