ehci-omap.c revision 354ab8567ae3107a8cbe7228c3181990ba598aac
154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi/* 24792a15bf0f388838c3e16636f961c99bc2f3572Anand Gadiyar * ehci-omap.c - driver for USBHOST on OMAP3/4 processors 354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * 44792a15bf0f388838c3e16636f961c99bc2f3572Anand Gadiyar * Bus Glue for the EHCI controllers in OMAP3/4 54792a15bf0f388838c3e16636f961c99bc2f3572Anand Gadiyar * Tested on several OMAP3 boards, and OMAP4 Pandaboard 654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * 719403165c272cc4ed00c97973e7271714b009708Keshava Munegowda * Copyright (C) 2007-2011 Texas Instruments, Inc. 854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * Author: Vikram Pandita <vikram.pandita@ti.com> 94792a15bf0f388838c3e16636f961c99bc2f3572Anand Gadiyar * Author: Anand Gadiyar <gadiyar@ti.com> 1019403165c272cc4ed00c97973e7271714b009708Keshava Munegowda * Author: Keshava Munegowda <keshava_mgowda@ti.com> 1154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * 1254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * Copyright (C) 2009 Nokia Corporation 1354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * Contact: Felipe Balbi <felipe.balbi@nokia.com> 1454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * 1554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * Based on "ehci-fsl.c" and "ehci-au1xxx.c" ehci glue layers 1654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * 1754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * This program is free software; you can redistribute it and/or modify 1854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * it under the terms of the GNU General Public License as published by 1954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * the Free Software Foundation; either version 2 of the License, or 2054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * (at your option) any later version. 2154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * 2254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * This program is distributed in the hope that it will be useful, 2354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * but WITHOUT ANY WARRANTY; without even the implied warranty of 2454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 2554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * GNU General Public License for more details. 2654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * 2754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * You should have received a copy of the GNU General Public License 2854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * along with this program; if not, write to the Free Software 2954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 3054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * 3119403165c272cc4ed00c97973e7271714b009708Keshava Munegowda * TODO (last updated Feb 27, 2010): 3254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * - add kernel-doc 3354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * - enable AUTOIDLE 3454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * - add suspend/resume 354792a15bf0f388838c3e16636f961c99bc2f3572Anand Gadiyar * - add HSIC and TLL support 364792a15bf0f388838c3e16636f961c99bc2f3572Anand Gadiyar * - convert to use hwmod and runtime PM 3754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi */ 3854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 3954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi#include <linux/platform_device.h> 405a0e3ad6af8660be21ca98a971cd00f331318c05Tejun Heo#include <linux/slab.h> 415aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta#include <linux/usb/ulpi.h> 42c76f782cb3cfffc1fd4233e11f3116655fa0fcd2Thomas Weber#include <plat/usb.h> 436e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda#include <linux/regulator/consumer.h> 446c984b066d84bb6e8f5a739ffb1dc4858df017a3Keshava Munegowda#include <linux/pm_runtime.h> 451fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda#include <linux/gpio.h> 46354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar#include <linux/clk.h> 4754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 4854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi/* EHCI Register Set */ 49572538dee7a4b25f3e77fdc11d20dbb753ecf367Anand Gadiyar#define EHCI_INSNREG04 (0xA0) 50572538dee7a4b25f3e77fdc11d20dbb753ecf367Anand Gadiyar#define EHCI_INSNREG04_DISABLE_UNSUSPEND (1 << 5) 5154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi#define EHCI_INSNREG05_ULPI (0xA4) 5254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi#define EHCI_INSNREG05_ULPI_CONTROL_SHIFT 31 5354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi#define EHCI_INSNREG05_ULPI_PORTSEL_SHIFT 24 5454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi#define EHCI_INSNREG05_ULPI_OPSEL_SHIFT 22 5554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi#define EHCI_INSNREG05_ULPI_REGADD_SHIFT 16 5654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi#define EHCI_INSNREG05_ULPI_EXTREGADD_SHIFT 8 5754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi#define EHCI_INSNREG05_ULPI_WRDATA_SHIFT 0 5854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 59354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar/* Errata i693 */ 60354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarstatic struct clk *utmi_p1_fck; 61354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarstatic struct clk *utmi_p2_fck; 62354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarstatic struct clk *xclk60mhsp1_ck; 63354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarstatic struct clk *xclk60mhsp2_ck; 64354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarstatic struct clk *usbhost_p1_fck; 65354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarstatic struct clk *usbhost_p2_fck; 66354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarstatic struct clk *init_60m_fclk; 67354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 6819403165c272cc4ed00c97973e7271714b009708Keshava Munegowda/*-------------------------------------------------------------------------*/ 694792a15bf0f388838c3e16636f961c99bc2f3572Anand Gadiyar 7019403165c272cc4ed00c97973e7271714b009708Keshava Munegowdastatic const struct hc_driver ehci_omap_hc_driver; 714792a15bf0f388838c3e16636f961c99bc2f3572Anand Gadiyar 72a42ccdc14de388a35ad0e8057543369351395eb9Anand Gadiyar 7319403165c272cc4ed00c97973e7271714b009708Keshava Munegowdastatic inline void ehci_write(void __iomem *base, u32 reg, u32 val) 7454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi{ 7554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi __raw_writel(val, base + reg); 7654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi} 7754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 7819403165c272cc4ed00c97973e7271714b009708Keshava Munegowdastatic inline u32 ehci_read(void __iomem *base, u32 reg) 7954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi{ 8054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi return __raw_readl(base + reg); 8154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi} 8254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 83354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar/* Erratum i693 workaround sequence */ 84354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarstatic void omap_ehci_erratum_i693(struct ehci_hcd *ehci) 85354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar{ 86354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar int ret = 0; 87354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 88354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar /* Switch to the internal 60 MHz clock */ 89354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ret = clk_set_parent(utmi_p1_fck, init_60m_fclk); 90354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if (ret != 0) 91354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ehci_err(ehci, "init_60m_fclk set parent" 92354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar "failed error:%d\n", ret); 93354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 94354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ret = clk_set_parent(utmi_p2_fck, init_60m_fclk); 95354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if (ret != 0) 96354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ehci_err(ehci, "init_60m_fclk set parent" 97354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar "failed error:%d\n", ret); 98354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 99354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_enable(usbhost_p1_fck); 100354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_enable(usbhost_p2_fck); 101354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 102354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar /* Wait 1ms and switch back to the external clock */ 103354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar mdelay(1); 104354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ret = clk_set_parent(utmi_p1_fck, xclk60mhsp1_ck); 105354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if (ret != 0) 106354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ehci_err(ehci, "xclk60mhsp1_ck set parent" 107354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar "failed error:%d\n", ret); 108354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 109354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ret = clk_set_parent(utmi_p2_fck, xclk60mhsp2_ck); 110354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if (ret != 0) 111354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ehci_err(ehci, "xclk60mhsp2_ck set parent" 112354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar "failed error:%d\n", ret); 113354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 114354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_disable(usbhost_p1_fck); 115354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_disable(usbhost_p2_fck); 116354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar} 117354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 11819403165c272cc4ed00c97973e7271714b009708Keshava Munegowdastatic void omap_ehci_soft_phy_reset(struct platform_device *pdev, u8 port) 1195aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta{ 12019403165c272cc4ed00c97973e7271714b009708Keshava Munegowda struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev); 1215aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta unsigned long timeout = jiffies + msecs_to_jiffies(1000); 1225aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta unsigned reg = 0; 1235aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta 1245aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta reg = ULPI_FUNC_CTRL_RESET 1255aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta /* FUNCTION_CTRL_SET register */ 1265aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta | (ULPI_SET(ULPI_FUNC_CTRL) << EHCI_INSNREG05_ULPI_REGADD_SHIFT) 1275aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta /* Write */ 1285aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta | (2 << EHCI_INSNREG05_ULPI_OPSEL_SHIFT) 1295aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta /* PORTn */ 1305aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta | ((port + 1) << EHCI_INSNREG05_ULPI_PORTSEL_SHIFT) 1315aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta /* start ULPI access*/ 1325aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta | (1 << EHCI_INSNREG05_ULPI_CONTROL_SHIFT); 1335aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta 13419403165c272cc4ed00c97973e7271714b009708Keshava Munegowda ehci_write(hcd->regs, EHCI_INSNREG05_ULPI, reg); 1355aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta 1365aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta /* Wait for ULPI access completion */ 13719403165c272cc4ed00c97973e7271714b009708Keshava Munegowda while ((ehci_read(hcd->regs, EHCI_INSNREG05_ULPI) 1385aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta & (1 << EHCI_INSNREG05_ULPI_CONTROL_SHIFT))) { 1395aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta cpu_relax(); 1405aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta 1415aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta if (time_after(jiffies, timeout)) { 14219403165c272cc4ed00c97973e7271714b009708Keshava Munegowda dev_dbg(&pdev->dev, "phy reset operation timed out\n"); 1435aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta break; 1445aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta } 1455aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta } 1465aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta} 1475aa4af2ce6a0643f32d47f21614817792b85298dAjay Kumar Gupta 148354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarstatic int omap_ehci_hub_control( 149354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar struct usb_hcd *hcd, 150354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar u16 typeReq, 151354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar u16 wValue, 152354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar u16 wIndex, 153354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar char *buf, 154354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar u16 wLength 155354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar) 156354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar{ 157354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar struct ehci_hcd *ehci = hcd_to_ehci(hcd); 158354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar u32 __iomem *status_reg = &ehci->regs->port_status[ 159354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar (wIndex & 0xff) - 1]; 160354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar u32 temp; 161354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar unsigned long flags; 162354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar int retval = 0; 163354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 164354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar spin_lock_irqsave(&ehci->lock, flags); 165354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 166354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if (typeReq == SetPortFeature && wValue == USB_PORT_FEAT_SUSPEND) { 167354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar temp = ehci_readl(ehci, status_reg); 168354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if ((temp & PORT_PE) == 0 || (temp & PORT_RESET) != 0) { 169354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar retval = -EPIPE; 170354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar goto done; 171354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar } 172354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 173354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar temp &= ~PORT_WKCONN_E; 174354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar temp |= PORT_WKDISC_E | PORT_WKOC_E; 175354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ehci_writel(ehci, temp | PORT_SUSPEND, status_reg); 176354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 177354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar omap_ehci_erratum_i693(ehci); 178354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 179354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar set_bit((wIndex & 0xff) - 1, &ehci->suspended_ports); 180354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar goto done; 181354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar } 182354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 183354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar spin_unlock_irqrestore(&ehci->lock, flags); 184354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 185354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar /* Handle the hub control events here */ 186354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar return ehci_hub_control(hcd, typeReq, wValue, wIndex, buf, wLength); 187354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyardone: 188354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar spin_unlock_irqrestore(&ehci->lock, flags); 189354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar return retval; 190354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar} 191354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 192d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Leistatic void disable_put_regulator( 193d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei struct ehci_hcd_omap_platform_data *pdata) 194d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei{ 195d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei int i; 196d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei 197d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) { 198d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei if (pdata->regulator[i]) { 199d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei regulator_disable(pdata->regulator[i]); 200d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei regulator_put(pdata->regulator[i]); 201d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei } 202d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei } 203d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei} 20454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 20554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi/* configure so an HC device and id are always provided */ 20654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi/* always called with process context; sleeping is OK */ 20754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 20854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi/** 20954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * ehci_hcd_omap_probe - initialize TI-based HCDs 21054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * 21154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * Allocates basic resources for this USB host controller, and 21254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * then invokes the start() method for the HCD associated with it 21354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * through the hotplug entry's driver_data. 21454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi */ 21554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbistatic int ehci_hcd_omap_probe(struct platform_device *pdev) 21654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi{ 21719403165c272cc4ed00c97973e7271714b009708Keshava Munegowda struct device *dev = &pdev->dev; 21819403165c272cc4ed00c97973e7271714b009708Keshava Munegowda struct ehci_hcd_omap_platform_data *pdata = dev->platform_data; 21919403165c272cc4ed00c97973e7271714b009708Keshava Munegowda struct resource *res; 22019403165c272cc4ed00c97973e7271714b009708Keshava Munegowda struct usb_hcd *hcd; 22119403165c272cc4ed00c97973e7271714b009708Keshava Munegowda void __iomem *regs; 22219403165c272cc4ed00c97973e7271714b009708Keshava Munegowda struct ehci_hcd *omap_ehci; 22319403165c272cc4ed00c97973e7271714b009708Keshava Munegowda int ret = -ENODEV; 22419403165c272cc4ed00c97973e7271714b009708Keshava Munegowda int irq; 2256e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda int i; 2266e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda char supply[7]; 22754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 22819403165c272cc4ed00c97973e7271714b009708Keshava Munegowda if (usb_disabled()) 22919403165c272cc4ed00c97973e7271714b009708Keshava Munegowda return -ENODEV; 23054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 23119403165c272cc4ed00c97973e7271714b009708Keshava Munegowda if (!dev->parent) { 23219403165c272cc4ed00c97973e7271714b009708Keshava Munegowda dev_err(dev, "Missing parent device\n"); 23319403165c272cc4ed00c97973e7271714b009708Keshava Munegowda return -ENODEV; 23454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi } 23554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 23619403165c272cc4ed00c97973e7271714b009708Keshava Munegowda irq = platform_get_irq_byname(pdev, "ehci-irq"); 23719403165c272cc4ed00c97973e7271714b009708Keshava Munegowda if (irq < 0) { 23819403165c272cc4ed00c97973e7271714b009708Keshava Munegowda dev_err(dev, "EHCI irq failed\n"); 23919403165c272cc4ed00c97973e7271714b009708Keshava Munegowda return -ENODEV; 24019403165c272cc4ed00c97973e7271714b009708Keshava Munegowda } 24154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 24219403165c272cc4ed00c97973e7271714b009708Keshava Munegowda res = platform_get_resource_byname(pdev, 24319403165c272cc4ed00c97973e7271714b009708Keshava Munegowda IORESOURCE_MEM, "ehci"); 24419403165c272cc4ed00c97973e7271714b009708Keshava Munegowda if (!res) { 24519403165c272cc4ed00c97973e7271714b009708Keshava Munegowda dev_err(dev, "UHH EHCI get resource failed\n"); 24619403165c272cc4ed00c97973e7271714b009708Keshava Munegowda return -ENODEV; 24719403165c272cc4ed00c97973e7271714b009708Keshava Munegowda } 24819403165c272cc4ed00c97973e7271714b009708Keshava Munegowda 24919403165c272cc4ed00c97973e7271714b009708Keshava Munegowda regs = ioremap(res->start, resource_size(res)); 25019403165c272cc4ed00c97973e7271714b009708Keshava Munegowda if (!regs) { 25119403165c272cc4ed00c97973e7271714b009708Keshava Munegowda dev_err(dev, "UHH EHCI ioremap failed\n"); 25219403165c272cc4ed00c97973e7271714b009708Keshava Munegowda return -ENOMEM; 25354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi } 25454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 25519403165c272cc4ed00c97973e7271714b009708Keshava Munegowda hcd = usb_create_hcd(&ehci_omap_hc_driver, dev, 25619403165c272cc4ed00c97973e7271714b009708Keshava Munegowda dev_name(dev)); 25754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi if (!hcd) { 25819403165c272cc4ed00c97973e7271714b009708Keshava Munegowda dev_err(dev, "failed to create hcd with err %d\n", ret); 25954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi ret = -ENOMEM; 26019403165c272cc4ed00c97973e7271714b009708Keshava Munegowda goto err_io; 26154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi } 26254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 26354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi hcd->rsrc_start = res->start; 26454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi hcd->rsrc_len = resource_size(res); 26519403165c272cc4ed00c97973e7271714b009708Keshava Munegowda hcd->regs = regs; 26654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 2676e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda /* get ehci regulator and enable */ 2686e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda for (i = 0 ; i < OMAP3_HS_USB_PORTS ; i++) { 2696e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda if (pdata->port_mode[i] != OMAP_EHCI_PORT_MODE_PHY) { 2706e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda pdata->regulator[i] = NULL; 2716e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda continue; 2726e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda } 2736e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda snprintf(supply, sizeof(supply), "hsusb%d", i); 2746e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda pdata->regulator[i] = regulator_get(dev, supply); 2756e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda if (IS_ERR(pdata->regulator[i])) { 2766e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda pdata->regulator[i] = NULL; 2776e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda dev_dbg(dev, 2786e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda "failed to get ehci port%d regulator\n", i); 2796e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda } else { 2806e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda regulator_enable(pdata->regulator[i]); 2816e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda } 2826e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda } 2836e3d4bec6b1e0829ed8b23be750762255f225019Keshava Munegowda 2841fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda if (pdata->phy_reset) { 2851fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda if (gpio_is_valid(pdata->reset_gpio_port[0])) 2861fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda gpio_request_one(pdata->reset_gpio_port[0], 2871fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda GPIOF_OUT_INIT_LOW, "USB1 PHY reset"); 2881fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda 2891fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda if (gpio_is_valid(pdata->reset_gpio_port[1])) 2901fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda gpio_request_one(pdata->reset_gpio_port[1], 2911fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda GPIOF_OUT_INIT_LOW, "USB2 PHY reset"); 2921fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda 2931fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda /* Hold the PHY in RESET for enough time till DIR is high */ 2941fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda udelay(10); 2951fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda } 2961fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda 2976c984b066d84bb6e8f5a739ffb1dc4858df017a3Keshava Munegowda pm_runtime_enable(dev); 2986c984b066d84bb6e8f5a739ffb1dc4858df017a3Keshava Munegowda pm_runtime_get_sync(dev); 29954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 30019403165c272cc4ed00c97973e7271714b009708Keshava Munegowda /* 30119403165c272cc4ed00c97973e7271714b009708Keshava Munegowda * An undocumented "feature" in the OMAP3 EHCI controller, 30219403165c272cc4ed00c97973e7271714b009708Keshava Munegowda * causes suspended ports to be taken out of suspend when 30319403165c272cc4ed00c97973e7271714b009708Keshava Munegowda * the USBCMD.Run/Stop bit is cleared (for example when 30419403165c272cc4ed00c97973e7271714b009708Keshava Munegowda * we do ehci_bus_suspend). 30519403165c272cc4ed00c97973e7271714b009708Keshava Munegowda * This breaks suspend-resume if the root-hub is allowed 30619403165c272cc4ed00c97973e7271714b009708Keshava Munegowda * to suspend. Writing 1 to this undocumented register bit 30719403165c272cc4ed00c97973e7271714b009708Keshava Munegowda * disables this feature and restores normal behavior. 30819403165c272cc4ed00c97973e7271714b009708Keshava Munegowda */ 30919403165c272cc4ed00c97973e7271714b009708Keshava Munegowda ehci_write(regs, EHCI_INSNREG04, 31019403165c272cc4ed00c97973e7271714b009708Keshava Munegowda EHCI_INSNREG04_DISABLE_UNSUSPEND); 31154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 31219403165c272cc4ed00c97973e7271714b009708Keshava Munegowda /* Soft reset the PHY using PHY reset command over ULPI */ 31319403165c272cc4ed00c97973e7271714b009708Keshava Munegowda if (pdata->port_mode[0] == OMAP_EHCI_PORT_MODE_PHY) 31419403165c272cc4ed00c97973e7271714b009708Keshava Munegowda omap_ehci_soft_phy_reset(pdev, 0); 31519403165c272cc4ed00c97973e7271714b009708Keshava Munegowda if (pdata->port_mode[1] == OMAP_EHCI_PORT_MODE_PHY) 31619403165c272cc4ed00c97973e7271714b009708Keshava Munegowda omap_ehci_soft_phy_reset(pdev, 1); 317881142660697bba0f3ef44f070d80632082c978fAjay Kumar Gupta 31819403165c272cc4ed00c97973e7271714b009708Keshava Munegowda omap_ehci = hcd_to_ehci(hcd); 31919403165c272cc4ed00c97973e7271714b009708Keshava Munegowda omap_ehci->sbrn = 0x20; 32054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 32119403165c272cc4ed00c97973e7271714b009708Keshava Munegowda /* we know this is the memory we want, no need to ioremap again */ 32219403165c272cc4ed00c97973e7271714b009708Keshava Munegowda omap_ehci->caps = hcd->regs; 32319403165c272cc4ed00c97973e7271714b009708Keshava Munegowda omap_ehci->regs = hcd->regs 324c430131a02d677aa708f56342c1565edfdacb3c0Jan Andersson + HC_LENGTH(ehci, readl(&omap_ehci->caps->hc_capbase)); 32554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 32619403165c272cc4ed00c97973e7271714b009708Keshava Munegowda dbg_hcs_params(omap_ehci, "reset"); 32719403165c272cc4ed00c97973e7271714b009708Keshava Munegowda dbg_hcc_params(omap_ehci, "reset"); 328bdb581bd6bd59a3303974977544d679d849214d1Anand Gadiyar 32954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi /* cache this readonly data; minimize chip reads */ 33019403165c272cc4ed00c97973e7271714b009708Keshava Munegowda omap_ehci->hcs_params = readl(&omap_ehci->caps->hcs_params); 33154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 332876e0df902c726408c84b75dab673a90fd492e1dGeoff Levand ehci_reset(omap_ehci); 333876e0df902c726408c84b75dab673a90fd492e1dGeoff Levand 3341fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda if (pdata->phy_reset) { 3351fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda /* Hold the PHY in RESET for enough time till 3361fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda * PHY is settled and ready 3371fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda */ 3381fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda udelay(10); 3391fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda 3401fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda if (gpio_is_valid(pdata->reset_gpio_port[0])) 3417b18389dd4fe0b178117b09d054e214297f7e677Igor Grinberg gpio_set_value_cansleep(pdata->reset_gpio_port[0], 1); 3421fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda 3431fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda if (gpio_is_valid(pdata->reset_gpio_port[1])) 3447b18389dd4fe0b178117b09d054e214297f7e677Igor Grinberg gpio_set_value_cansleep(pdata->reset_gpio_port[1], 1); 3451fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda } 3461fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda 3473aa2ae74ba630ec9b98736d64aea8e4cb490861dRuss Dill ret = usb_add_hcd(hcd, irq, IRQF_SHARED); 3483aa2ae74ba630ec9b98736d64aea8e4cb490861dRuss Dill if (ret) { 3493aa2ae74ba630ec9b98736d64aea8e4cb490861dRuss Dill dev_err(dev, "failed to add hcd with err %d\n", ret); 3503aa2ae74ba630ec9b98736d64aea8e4cb490861dRuss Dill goto err_add_hcd; 3513aa2ae74ba630ec9b98736d64aea8e4cb490861dRuss Dill } 3523aa2ae74ba630ec9b98736d64aea8e4cb490861dRuss Dill 3533aa2ae74ba630ec9b98736d64aea8e4cb490861dRuss Dill /* root ports should always stay powered */ 3543aa2ae74ba630ec9b98736d64aea8e4cb490861dRuss Dill ehci_port_power(omap_ehci, 1); 3553aa2ae74ba630ec9b98736d64aea8e4cb490861dRuss Dill 356354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar /* get clocks */ 357354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk"); 358354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if (IS_ERR(utmi_p1_fck)) { 359354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ret = PTR_ERR(utmi_p1_fck); 360354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar dev_err(dev, "utmi_p1_gfclk failed error:%d\n", ret); 361354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar goto err_add_hcd; 362354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar } 363354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 364354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck"); 365354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if (IS_ERR(xclk60mhsp1_ck)) { 366354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ret = PTR_ERR(xclk60mhsp1_ck); 367354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret); 368354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar goto err_utmi_p1_fck; 369354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar } 370354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 371354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar utmi_p2_fck = clk_get(dev, "utmi_p2_gfclk"); 372354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if (IS_ERR(utmi_p2_fck)) { 373354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ret = PTR_ERR(utmi_p2_fck); 374354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret); 375354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar goto err_xclk60mhsp1_ck; 376354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar } 377354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 378354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck"); 379354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if (IS_ERR(xclk60mhsp2_ck)) { 380354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ret = PTR_ERR(xclk60mhsp2_ck); 381354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret); 382354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar goto err_utmi_p2_fck; 383354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar } 384354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 385354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar usbhost_p1_fck = clk_get(dev, "usb_host_hs_utmi_p1_clk"); 386354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if (IS_ERR(usbhost_p1_fck)) { 387354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ret = PTR_ERR(usbhost_p1_fck); 388354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar dev_err(dev, "usbhost_p1_fck failed error:%d\n", ret); 389354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar goto err_xclk60mhsp2_ck; 390354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar } 391354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 392354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar usbhost_p2_fck = clk_get(dev, "usb_host_hs_utmi_p2_clk"); 393354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if (IS_ERR(usbhost_p2_fck)) { 394354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ret = PTR_ERR(usbhost_p2_fck); 395354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar dev_err(dev, "usbhost_p2_fck failed error:%d\n", ret); 396354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar goto err_usbhost_p1_fck; 397354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar } 398354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 399354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar init_60m_fclk = clk_get(dev, "init_60m_fclk"); 400354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar if (IS_ERR(init_60m_fclk)) { 401354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar ret = PTR_ERR(init_60m_fclk); 402354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar dev_err(dev, "init_60m_fclk failed error:%d\n", ret); 403354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar goto err_usbhost_p2_fck; 404354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar } 405354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 40654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi return 0; 40754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 408354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarerr_usbhost_p2_fck: 409354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(usbhost_p2_fck); 410354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 411354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarerr_usbhost_p1_fck: 412354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(usbhost_p1_fck); 413354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 414354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarerr_xclk60mhsp2_ck: 415354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(xclk60mhsp2_ck); 416354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 417354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarerr_utmi_p2_fck: 418354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(utmi_p2_fck); 419354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 420354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarerr_xclk60mhsp1_ck: 421354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(xclk60mhsp1_ck); 422354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 423354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyarerr_utmi_p1_fck: 424354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(utmi_p1_fck); 425354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 42654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbierr_add_hcd: 427d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei disable_put_regulator(pdata); 4286c984b066d84bb6e8f5a739ffb1dc4858df017a3Keshava Munegowda pm_runtime_put_sync(dev); 42954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 43019403165c272cc4ed00c97973e7271714b009708Keshava Munegowdaerr_io: 431d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei iounmap(regs); 43254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi return ret; 43354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi} 43454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 43554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 43654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi/** 43754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * ehci_hcd_omap_remove - shutdown processing for EHCI HCDs 43854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * @pdev: USB Host Controller being removed 43954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * 44054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * Reverses the effect of usb_ehci_hcd_omap_probe(), first invoking 44154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * the HCD's stop() method. It is always called from a thread 44254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * context, normally "rmmod", "apmd", or something similar. 44354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi */ 44454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbistatic int ehci_hcd_omap_remove(struct platform_device *pdev) 44554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi{ 4461fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda struct device *dev = &pdev->dev; 4471fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda struct usb_hcd *hcd = dev_get_drvdata(dev); 4481fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda struct ehci_hcd_omap_platform_data *pdata = dev->platform_data; 44954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 45054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi usb_remove_hcd(hcd); 451d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei disable_put_regulator(dev->platform_data); 452d4aefec5daf51ebda90ebf0989598c206cf8e640Ming Lei iounmap(hcd->regs); 45354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi usb_put_hcd(hcd); 454354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 455354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(utmi_p1_fck); 456354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(utmi_p2_fck); 457354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(xclk60mhsp1_ck); 458354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(xclk60mhsp2_ck); 459354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(usbhost_p1_fck); 460354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(usbhost_p2_fck); 461354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar clk_put(init_60m_fclk); 462354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar 4636c984b066d84bb6e8f5a739ffb1dc4858df017a3Keshava Munegowda pm_runtime_put_sync(dev); 4646c984b066d84bb6e8f5a739ffb1dc4858df017a3Keshava Munegowda pm_runtime_disable(dev); 4656c984b066d84bb6e8f5a739ffb1dc4858df017a3Keshava Munegowda 4661fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda if (pdata->phy_reset) { 4671fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda if (gpio_is_valid(pdata->reset_gpio_port[0])) 4681fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda gpio_free(pdata->reset_gpio_port[0]); 4691fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda 4701fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda if (gpio_is_valid(pdata->reset_gpio_port[1])) 4711fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda gpio_free(pdata->reset_gpio_port[1]); 4721fcb57d0f6e1150003d222051aaaf4bc4a9ccc94Keshava Munegowda } 47354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi return 0; 47454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi} 47554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 47654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbistatic void ehci_hcd_omap_shutdown(struct platform_device *pdev) 47754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi{ 47819403165c272cc4ed00c97973e7271714b009708Keshava Munegowda struct usb_hcd *hcd = dev_get_drvdata(&pdev->dev); 47954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 48054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi if (hcd->driver->shutdown) 48154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi hcd->driver->shutdown(hcd); 48254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi} 48354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 48454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbistatic struct platform_driver ehci_hcd_omap_driver = { 48554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .probe = ehci_hcd_omap_probe, 48654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .remove = ehci_hcd_omap_remove, 48754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .shutdown = ehci_hcd_omap_shutdown, 48854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi /*.suspend = ehci_hcd_omap_suspend, */ 48954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi /*.resume = ehci_hcd_omap_resume, */ 49054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .driver = { 49154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .name = "ehci-omap", 49254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi } 49354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi}; 49454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 49554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi/*-------------------------------------------------------------------------*/ 49654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 49754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbistatic const struct hc_driver ehci_omap_hc_driver = { 49854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .description = hcd_name, 49954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .product_desc = "OMAP-EHCI Host Controller", 50054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .hcd_priv_size = sizeof(struct ehci_hcd), 50154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 50254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi /* 50354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * generic hardware linkage 50454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi */ 50554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .irq = ehci_irq, 50654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .flags = HCD_MEMORY | HCD_USB2, 50754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 50854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi /* 50954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * basic lifecycle operations 51054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi */ 51154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .reset = ehci_init, 51254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .start = ehci_run, 51354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .stop = ehci_stop, 51454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .shutdown = ehci_shutdown, 51554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 51654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi /* 51754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * managing i/o requests and associated device resources 51854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi */ 51954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .urb_enqueue = ehci_urb_enqueue, 52054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .urb_dequeue = ehci_urb_dequeue, 52154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .endpoint_disable = ehci_endpoint_disable, 52254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .endpoint_reset = ehci_endpoint_reset, 52354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 52454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi /* 52554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * scheduling support 52654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi */ 52754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .get_frame_number = ehci_get_frame, 52854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 52954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi /* 53054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi * root hub support 53154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi */ 53254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .hub_status_data = ehci_hub_status_data, 533354ab8567ae3107a8cbe7228c3181990ba598aacAnand Gadiyar .hub_control = omap_ehci_hub_control, 53454ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .bus_suspend = ehci_bus_suspend, 53554ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .bus_resume = ehci_bus_resume, 53654ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 53754ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi .clear_tt_buffer_complete = ehci_clear_tt_buffer_complete, 53854ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi}; 53954ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 54054ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe BalbiMODULE_ALIAS("platform:omap-ehci"); 54154ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe BalbiMODULE_AUTHOR("Texas Instruments, Inc."); 54254ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe BalbiMODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>"); 54354ab2b02ef6a454b4cca969f546d0dd43fec7308Felipe Balbi 544