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https://github.com/AsahiLinux/u-boot
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87f938c9f7
This adds basic support for the Tegra2 USB controller. Board files should
call board_usb_init() to set things up.
Configuration is performed through the FDT, with aliases used to set the
order of the ports, like this fragment:
aliases {
/* This defines the order of our USB ports */
usb0 = "/usb@0xc5008000";
usb1 = "/usb@0xc5000000";
};
drivers/usb/host files ONLY: Acked-by: Remy Bohmer <linux@bohmer.net>
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Tom Warren <twarren@nvidia.com>
252 lines
5.8 KiB
C
252 lines
5.8 KiB
C
/*
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* Copyright (c) 2011 The Chromium OS Authors.
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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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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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef _TEGRA_USB_H_
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#define _TEGRA_USB_H_
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/* USB Controller (USBx_CONTROLLER_) regs */
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struct usb_ctlr {
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/* 0x000 */
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uint id;
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uint reserved0;
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uint host;
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uint device;
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/* 0x010 */
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uint txbuf;
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uint rxbuf;
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uint reserved1[2];
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/* 0x020 */
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uint reserved2[56];
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/* 0x100 */
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u16 cap_length;
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u16 hci_version;
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uint hcs_params;
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uint hcc_params;
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uint reserved3[5];
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/* 0x120 */
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uint dci_version;
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uint dcc_params;
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uint reserved4[6];
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/* 0x140 */
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uint usb_cmd;
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uint usb_sts;
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uint usb_intr;
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uint frindex;
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/* 0x150 */
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uint reserved5;
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uint periodic_list_base;
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uint async_list_addr;
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uint async_tt_sts;
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/* 0x160 */
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uint burst_size;
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uint tx_fill_tuning;
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uint reserved6; /* is this port_sc1 on some controllers? */
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uint icusb_ctrl;
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/* 0x170 */
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uint ulpi_viewport;
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uint reserved7;
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uint endpt_nak;
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uint endpt_nak_enable;
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/* 0x180 */
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uint reserved;
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uint port_sc1;
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uint reserved8[6];
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/* 0x1a0 */
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uint reserved9;
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uint otgsc;
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uint usb_mode;
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uint endpt_setup_stat;
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/* 0x1b0 */
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uint reserved10[20];
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/* 0x200 */
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uint reserved11[0x80];
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/* 0x400 */
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uint susp_ctrl;
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uint phy_vbus_sensors;
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uint phy_vbus_wakeup_id;
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uint phy_alt_vbus_sys;
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/* 0x410 */
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uint usb1_legacy_ctrl;
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uint reserved12[3];
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/* 0x420 */
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uint reserved13[56];
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/* 0x500 */
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uint reserved14[64 * 3];
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/* 0x800 */
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uint utmip_pll_cfg0;
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uint utmip_pll_cfg1;
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uint utmip_xcvr_cfg0;
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uint utmip_bias_cfg0;
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/* 0x810 */
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uint utmip_hsrx_cfg0;
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uint utmip_hsrx_cfg1;
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uint utmip_fslsrx_cfg0;
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uint utmip_fslsrx_cfg1;
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/* 0x820 */
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uint utmip_tx_cfg0;
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uint utmip_misc_cfg0;
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uint utmip_misc_cfg1;
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uint utmip_debounce_cfg0;
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/* 0x830 */
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uint utmip_bat_chrg_cfg0;
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uint utmip_spare_cfg0;
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uint utmip_xcvr_cfg1;
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uint utmip_bias_cfg1;
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};
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/* USB1_LEGACY_CTRL */
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#define USB1_NO_LEGACY_MODE 1
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#define VBUS_SENSE_CTL_SHIFT 1
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#define VBUS_SENSE_CTL_MASK (3 << VBUS_SENSE_CTL_SHIFT)
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#define VBUS_SENSE_CTL_VBUS_WAKEUP 0
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#define VBUS_SENSE_CTL_AB_SESS_VLD_OR_VBUS_WAKEUP 1
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#define VBUS_SENSE_CTL_AB_SESS_VLD 2
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#define VBUS_SENSE_CTL_A_SESS_VLD 3
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/* USBx_IF_USB_SUSP_CTRL_0 */
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#define UTMIP_PHY_ENB (1 << 12)
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#define UTMIP_RESET (1 << 11)
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#define USB_PHY_CLK_VALID (1 << 7)
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/* USBx_UTMIP_MISC_CFG1 */
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#define UTMIP_PLLU_STABLE_COUNT_SHIFT 6
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#define UTMIP_PLLU_STABLE_COUNT_MASK \
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(0xfff << UTMIP_PLLU_STABLE_COUNT_SHIFT)
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#define UTMIP_PLL_ACTIVE_DLY_COUNT_SHIFT 18
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#define UTMIP_PLL_ACTIVE_DLY_COUNT_MASK \
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(0x1f << UTMIP_PLL_ACTIVE_DLY_COUNT_SHIFT)
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#define UTMIP_PHY_XTAL_CLOCKEN (1 << 30)
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/* USBx_UTMIP_PLL_CFG1_0 */
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#define UTMIP_PLLU_ENABLE_DLY_COUNT_SHIFT 27
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#define UTMIP_PLLU_ENABLE_DLY_COUNT_MASK \
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(0xf << UTMIP_PLLU_ENABLE_DLY_COUNT_SHIFT)
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#define UTMIP_XTAL_FREQ_COUNT_SHIFT 0
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#define UTMIP_XTAL_FREQ_COUNT_MASK 0xfff
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/* USBx_UTMIP_BIAS_CFG1_0 */
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#define UTMIP_BIAS_PDTRK_COUNT_SHIFT 3
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#define UTMIP_BIAS_PDTRK_COUNT_MASK \
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(0x1f << UTMIP_BIAS_PDTRK_COUNT_SHIFT)
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#define UTMIP_DEBOUNCE_CFG0_SHIFT 0
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#define UTMIP_DEBOUNCE_CFG0_MASK 0xffff
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/* USBx_UTMIP_TX_CFG0_0 */
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#define UTMIP_FS_PREAMBLE_J (1 << 19)
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/* USBx_UTMIP_BAT_CHRG_CFG0_0 */
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#define UTMIP_PD_CHRG 1
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/* USBx_UTMIP_XCVR_CFG0_0 */
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#define UTMIP_XCVR_LSBIAS_SE (1 << 21)
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/* USBx_UTMIP_SPARE_CFG0_0 */
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#define FUSE_SETUP_SEL (1 << 3)
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/* USBx_UTMIP_HSRX_CFG0_0 */
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#define UTMIP_IDLE_WAIT_SHIFT 15
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#define UTMIP_IDLE_WAIT_MASK (0x1f << UTMIP_IDLE_WAIT_SHIFT)
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#define UTMIP_ELASTIC_LIMIT_SHIFT 10
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#define UTMIP_ELASTIC_LIMIT_MASK \
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(0x1f << UTMIP_ELASTIC_LIMIT_SHIFT)
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/* USBx_UTMIP_HSRX_CFG0_1 */
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#define UTMIP_HS_SYNC_START_DLY_SHIFT 1
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#define UTMIP_HS_SYNC_START_DLY_MASK \
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(0xf << UTMIP_HS_SYNC_START_DLY_SHIFT)
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/* USBx_CONTROLLER_2_USB2D_ICUSB_CTRL_0 */
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#define IC_ENB1 (1 << 3)
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/* SB2_CONTROLLER_2_USB2D_PORTSC1_0 */
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#define PTS_SHIFT 30
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#define PTS_MASK (3U << PTS_SHIFT)
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#define PTS_UTMI 0
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#define PTS_RESERVED 1
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#define PTS_ULP 2
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#define PTS_ICUSB_SER 3
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#define STS (1 << 29)
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/* USBx_UTMIP_XCVR_CFG0_0 */
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#define UTMIP_FORCE_PD_POWERDOWN (1 << 14)
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#define UTMIP_FORCE_PD2_POWERDOWN (1 << 16)
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#define UTMIP_FORCE_PDZI_POWERDOWN (1 << 18)
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/* USBx_UTMIP_XCVR_CFG1_0 */
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#define UTMIP_FORCE_PDDISC_POWERDOWN (1 << 0)
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#define UTMIP_FORCE_PDCHRP_POWERDOWN (1 << 2)
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#define UTMIP_FORCE_PDDR_POWERDOWN (1 << 4)
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/* USB3_IF_USB_PHY_VBUS_SENSORS_0 */
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#define VBUS_VLD_STS (1 << 26)
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/* Change the USB host port into host mode */
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void usb_set_host_mode(void);
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/* Setup USB on the board */
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int board_usb_init(const void *blob);
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/**
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* Start up the given port number (ports are numbered from 0 on each board).
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* This returns values for the appropriate hccr and hcor addresses to use for
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* USB EHCI operations.
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*
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* @param portnum port number to start
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* @param hccr returns start address of EHCI HCCR registers
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* @param hcor returns start address of EHCI HCOR registers
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* @return 0 if ok, -1 on error (generally invalid port number)
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*/
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int tegrausb_start_port(unsigned portnum, u32 *hccr, u32 *hcor);
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/**
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* Stop the current port
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*
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* @return 0 if ok, -1 if no port was active
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*/
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int tegrausb_stop_port(void);
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#endif /* _TEGRA_USB_H_ */
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