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/*
* arch/arm/mach-tegra/include/mach/usb_phy.h
*
* Copyright (C) 2010 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#ifndef __MACH_USB_PHY_H
#define __MACH_USB_PHY_H
#include <linux/platform_device.h>
#include <linux/clk.h>
#define USB_PHY_MAX_CONTEXT_REGS 10
struct tegra_utmip_config {
u8 hssync_start_delay;
u8 elastic_limit;
u8 idle_wait_delay;
u8 term_range_adj;
u8 xcvr_setup;
u8 xcvr_lsfslew;
u8 xcvr_lsrslew;
};
enum tegra_ulpi_inf_type {
TEGRA_USB_LINK_ULPI = 0,
TEGRA_USB_NULL_ULPI,
};
struct tegra_ulpi_trimmer {
u8 shadow_clk_delay; /* 0 ~ 31 */
u8 clock_out_delay; /* 0 ~ 31 */
u8 data_trimmer; /* 0 ~ 7 */
u8 stpdirnxt_trimmer; /* 0 ~ 7 */
};
struct tegra_ulpi_config {
enum tegra_ulpi_inf_type inf_type;
int reset_gpio;
const char *clk;
const struct tegra_ulpi_trimmer *trimmer;
int (*preinit)(void);
int (*postinit)(void);
};
enum tegra_usb_phy_port_speed {
TEGRA_USB_PHY_PORT_SPEED_FULL = 0,
TEGRA_USB_PHY_PORT_SPEED_LOW,
TEGRA_USB_PHY_PORT_HIGH,
};
enum tegra_usb_phy_mode {
TEGRA_USB_PHY_MODE_DEVICE,
TEGRA_USB_PHY_MODE_HOST,
};
struct tegra_usb_phy {
int instance;
int freq_sel;
void __iomem *regs;
void __iomem *pad_regs;
struct clk *clk;
struct clk *pll_u;
struct clk *pad_clk;
enum tegra_usb_phy_mode mode;
void *config;
};
struct tegra_usb_phy *tegra_usb_phy_open(int instance, void __iomem *regs,
void *config, enum tegra_usb_phy_mode phy_mode);
int tegra_usb_phy_power_on(struct tegra_usb_phy *phy);
int tegra_usb_phy_clk_disable(struct tegra_usb_phy *phy);
int tegra_usb_phy_clk_enable(struct tegra_usb_phy *phy);
int tegra_usb_phy_power_off(struct tegra_usb_phy *phy);
int tegra_usb_phy_preresume(struct tegra_usb_phy *phy);
int tegra_usb_phy_postresume(struct tegra_usb_phy *phy);
int tegra_ehci_phy_restore_start(struct tegra_usb_phy *phy,
enum tegra_usb_phy_port_speed port_speed);
int tegra_ehci_phy_restore_end(struct tegra_usb_phy *phy);
int tegra_usb_phy_close(struct tegra_usb_phy *phy);
#endif //__MACH_USB_PHY_H
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