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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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30bf8667ce
Select the secondary PHY using the TCSR register, if phy-num=1 in the DTS (or phy_number is set in the platform data). The SOC has 2 PHYs which can be used with the OTG port, and this code allows configuring the correct one. Note: This resolves the problem I was seeing where I couldn't get the USB driver working at all on a dragonboard, from cold boot. This patch depends on patch 5/14 from Ivan's msm USB patch set. It does not use DT for the register address, as there's no evidence that this address changes between SoC versions. Signed-off-by: Tim Bird <tim.bird@sonymobile.com> Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
68 lines
2.4 KiB
C
68 lines
2.4 KiB
C
/*
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* Copyright (C) 2007 Google, Inc.
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* Author: Brian Swetland <swetland@google.com>
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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 __LINUX_USB_GADGET_MSM72K_UDC_H__
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#define __LINUX_USB_GADGET_MSM72K_UDC_H__
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/* USB phy selector - in TCSR address range */
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#define USB2_PHY_SEL 0xfd4ab000
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#define USB_AHBBURST (MSM_USB_BASE + 0x0090)
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#define USB_AHBMODE (MSM_USB_BASE + 0x0098)
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#define USB_CAPLENGTH (MSM_USB_BASE + 0x0100) /* 8 bit */
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#define USB_USBCMD (MSM_USB_BASE + 0x0140)
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#define USB_PORTSC (MSM_USB_BASE + 0x0184)
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#define USB_OTGSC (MSM_USB_BASE + 0x01A4)
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#define USB_USBMODE (MSM_USB_BASE + 0x01A8)
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#define USB_PHY_CTRL (MSM_USB_BASE + 0x0240)
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#define USB_PHY_CTRL2 (MSM_USB_BASE + 0x0278)
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#define USBCMD_RESET 2
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#define USB_USBINTR (MSM_USB_BASE + 0x0148)
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#define PORTSC_PHCD (1 << 23) /* phy suspend mode */
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#define PORTSC_PTS_MASK (3 << 30)
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#define PORTSC_PTS_ULPI (2 << 30)
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#define PORTSC_PTS_SERIAL (3 << 30)
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#define USB_ULPI_VIEWPORT (MSM_USB_BASE + 0x0170)
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#define ULPI_RUN (1 << 30)
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#define ULPI_WRITE (1 << 29)
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#define ULPI_READ (0 << 29)
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#define ULPI_ADDR(n) (((n) & 255) << 16)
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#define ULPI_DATA(n) ((n) & 255)
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#define ULPI_DATA_READ(n) (((n) >> 8) & 255)
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/* synopsys 28nm phy registers */
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#define ULPI_PWR_CLK_MNG_REG 0x88
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#define OTG_COMP_DISABLE BIT(0)
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#define ASYNC_INTR_CTRL (1 << 29) /* Enable async interrupt */
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#define ULPI_STP_CTRL (1 << 30) /* Block communication with PHY */
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#define PHY_RETEN (1 << 1) /* PHY retention enable/disable */
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#define PHY_POR_ASSERT (1 << 0) /* USB2 28nm PHY POR ASSERT */
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/* OTG definitions */
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#define OTGSC_INTSTS_MASK (0x7f << 16)
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#define OTGSC_ID (1 << 8)
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#define OTGSC_BSV (1 << 11)
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#define OTGSC_IDIS (1 << 16)
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#define OTGSC_BSVIS (1 << 19)
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#define OTGSC_IDIE (1 << 24)
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#define OTGSC_BSVIE (1 << 27)
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#endif /* __LINUX_USB_GADGET_MSM72K_UDC_H__ */
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