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94ed66194f
The omap3.dtsi file shows the usbhshost node with two sub-nodes for ohci and ehci. This patch file creates the usbhshost, and pulls the portX-mode information. It then locates the EHCI sub-node, and initializes the EHCI controller with the info pulled from the usbhshost node. There is still more to do since there isn't an actual link between the 'phys' reference and the corresponding phy driver, and there is no nop-xceiv driver yet. In the meantime, the older style reference to CONFIG_OMAP_EHCI_PHYx_RESET_GPIO is still needed to pull the phy out of reset until the phy driver is completed and the phandle reference is made. Signed-off-by: Adam Ford <aford173@gmail.com>
140 lines
4.0 KiB
C
140 lines
4.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* OMAP EHCI port support
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* Based on LINUX KERNEL
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* drivers/usb/host/ehci-omap.c and drivers/mfd/omap-usb-host.c
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*
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* Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com*
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* Author: Govindraj R <govindraj.raja@ti.com>
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*/
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#ifndef _OMAP_COMMON_EHCI_H_
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#define _OMAP_COMMON_EHCI_H_
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enum usbhs_omap_port_mode {
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OMAP_USBHS_PORT_MODE_UNUSED,
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OMAP_EHCI_PORT_MODE_PHY,
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OMAP_EHCI_PORT_MODE_TLL,
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OMAP_EHCI_PORT_MODE_HSIC,
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};
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#define OMAP_HS_USB_PORTS 3
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#define is_ehci_phy_mode(x) ((x) == OMAP_EHCI_PORT_MODE_PHY)
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#define is_ehci_tll_mode(x) ((x) == OMAP_EHCI_PORT_MODE_TLL)
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#define is_ehci_hsic_mode(x) ((x) == OMAP_EHCI_PORT_MODE_HSIC)
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/* Values of UHH_REVISION - Note: these are not given in the TRM */
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#define OMAP_USBHS_REV1 0x00000010 /* OMAP3 */
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#define OMAP_USBHS_REV2 0x50700100 /* OMAP4 */
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#define OMAP_USBHS_REV2_1 0x50700101 /* OMAP5 */
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/* UHH Register Set */
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#define OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN (1 << 2)
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#define OMAP_UHH_HOSTCONFIG_INCR8_BURST_EN (1 << 3)
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#define OMAP_UHH_HOSTCONFIG_INCR16_BURST_EN (1 << 4)
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#define OMAP_UHH_HOSTCONFIG_INCRX_ALIGN_EN (1 << 5)
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#define OMAP_UHH_HOSTCONFIG_ULPI_P1_BYPASS 1
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#define OMAP_UHH_HOSTCONFIG_ULPI_P2_BYPASS (1 << 11)
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#define OMAP_UHH_HOSTCONFIG_ULPI_P3_BYPASS (1 << 12)
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#define OMAP4_UHH_HOSTCONFIG_APP_START_CLK (1 << 31)
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#define OMAP_P1_MODE_CLEAR (3 << 16)
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#define OMAP_P1_MODE_TLL (1 << 16)
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#define OMAP_P1_MODE_HSIC (3 << 16)
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#define OMAP_P2_MODE_CLEAR (3 << 18)
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#define OMAP_P2_MODE_TLL (1 << 18)
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#define OMAP_P2_MODE_HSIC (3 << 18)
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#define OMAP_P3_MODE_CLEAR (3 << 20)
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#define OMAP_P3_MODE_HSIC (3 << 20)
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/* EHCI Register Set */
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#define EHCI_INSNREG04_DISABLE_UNSUSPEND (1 << 5)
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#define EHCI_INSNREG05_ULPI_CONTROL_SHIFT 31
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#define EHCI_INSNREG05_ULPI_PORTSEL_SHIFT 24
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#define EHCI_INSNREG05_ULPI_OPSEL_SHIFT 22
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#define EHCI_INSNREG05_ULPI_REGADD_SHIFT 16
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#define OMAP_REV1_TLL_CHANNEL_COUNT 3
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#define OMAP_REV2_TLL_CHANNEL_COUNT 2
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/* TLL Register Set */
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#define OMAP_TLL_CHANNEL_CONF(num) (0x004 * num)
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#define OMAP_TLL_CHANNEL_CONF_DRVVBUS (1 << 16)
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#define OMAP_TLL_CHANNEL_CONF_CHRGVBUS (1 << 15)
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#define OMAP_TLL_CHANNEL_CONF_ULPINOBITSTUFF (1 << 11)
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#define OMAP_TLL_CHANNEL_CONF_CHANMODE_TRANSPARENT_UTMI (2 << 1)
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#define OMAP_TLL_CHANNEL_CONF_CHANEN 1
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struct omap_usbhs_board_data {
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enum usbhs_omap_port_mode port_mode[OMAP_HS_USB_PORTS];
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};
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struct omap_usbtll {
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u32 rev; /* 0x00 */
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u32 hwinfo; /* 0x04 */
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u8 reserved1[0x8];
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u32 sysc; /* 0x10 */
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u32 syss; /* 0x14 */
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u32 irqst; /* 0x18 */
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u32 irqen; /* 0x1c */
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u8 reserved2[0x10];
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u32 shared_conf; /* 0x30 */
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u8 reserved3[0xc];
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u32 channel_conf; /* 0x40 */
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};
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struct omap_uhh {
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u32 rev; /* 0x00 */
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u32 hwinfo; /* 0x04 */
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u8 reserved1[0x8];
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u32 sysc; /* 0x10 */
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u32 syss; /* 0x14 */
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u8 reserved2[0x28];
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u32 hostconfig; /* 0x40 */
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u32 debugcsr; /* 0x44 */
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};
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struct omap_ehci {
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u32 hccapbase; /* 0x00 */
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u32 hcsparams; /* 0x04 */
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u32 hccparams; /* 0x08 */
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u8 reserved1[0x04];
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u32 usbcmd; /* 0x10 */
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u32 usbsts; /* 0x14 */
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u32 usbintr; /* 0x18 */
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u32 frindex; /* 0x1c */
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u32 ctrldssegment; /* 0x20 */
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u32 periodiclistbase; /* 0x24 */
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u32 asysnclistaddr; /* 0x28 */
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u8 reserved2[0x24];
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u32 configflag; /* 0x50 */
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u32 portsc_i; /* 0x54 */
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u8 reserved3[0x38];
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u32 insreg00; /* 0x90 */
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u32 insreg01; /* 0x94 */
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u32 insreg02; /* 0x98 */
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u32 insreg03; /* 0x9c */
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u32 insreg04; /* 0xa0 */
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u32 insreg05_utmi_ulpi; /* 0xa4 */
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u32 insreg06; /* 0xa8 */
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u32 insreg07; /* 0xac */
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u32 insreg08; /* 0xb0 */
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};
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#if !CONFIG_IS_ENABLED(DM_USB) || !CONFIG_IS_ENABLED(OF_CONTROL)
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/*
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* FIXME: forward declaration of this structs needed because omap got the
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* ehci implementation backwards. move out ehci_hcd_x from board files
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*/
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struct ehci_hccr;
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struct ehci_hcor;
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int omap_ehci_hcd_init(int index, struct omap_usbhs_board_data *usbhs_pdata,
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struct ehci_hccr **hccr, struct ehci_hcor **hcor);
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int omap_ehci_hcd_stop(void);
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#endif
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#endif /* _OMAP_COMMON_EHCI_H_ */
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