2005-07-10 14:58:15 -04:00
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/*
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* arch/arm/plat-omap/usb.c -- platform level USB initialization
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*
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* Copyright (C) 2004 Texas Instruments, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (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, MA 02111-1307 USA
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*/
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#undef DEBUG
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/errno.h>
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#include <linux/init.h>
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2005-10-29 14:07:23 -04:00
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#include <linux/platform_device.h>
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2006-06-29 15:27:23 -04:00
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#include <linux/usb/otg.h>
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2005-07-10 14:58:15 -04:00
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/system.h>
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#include <asm/hardware.h>
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#include <asm/arch/mux.h>
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#include <asm/arch/usb.h>
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#include <asm/arch/board.h>
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2006-12-07 16:58:10 -05:00
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#ifdef CONFIG_ARCH_OMAP1
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#define INT_USB_IRQ_GEN IH2_BASE + 20
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#define INT_USB_IRQ_NISO IH2_BASE + 30
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#define INT_USB_IRQ_ISO IH2_BASE + 29
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#define INT_USB_IRQ_HGEN INT_USB_HHC_1
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#define INT_USB_IRQ_OTG IH2_BASE + 8
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#else
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#define INT_USB_IRQ_GEN INT_24XX_USB_IRQ_GEN
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#define INT_USB_IRQ_NISO INT_24XX_USB_IRQ_NISO
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#define INT_USB_IRQ_ISO INT_24XX_USB_IRQ_ISO
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#define INT_USB_IRQ_HGEN INT_24XX_USB_IRQ_HGEN
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#define INT_USB_IRQ_OTG INT_24XX_USB_IRQ_OTG
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#endif
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2005-07-10 14:58:15 -04:00
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/* These routines should handle the standard chip-specific modes
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* for usb0/1/2 ports, covering basic mux and transceiver setup.
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*
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* Some board-*.c files will need to set up additional mux options,
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* like for suspend handling, vbus sensing, GPIOs, and the D+ pullup.
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*/
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/* TESTED ON:
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* - 1611B H2 (with usb1 mini-AB) using standard Mini-B or OTG cables
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* - 5912 OSK OHCI (with usb0 standard-A), standard A-to-B cables
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* - 5912 OSK UDC, with *nonstandard* A-to-A cable
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* - 1510 Innovator UDC with bundled usb0 cable
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* - 1510 Innovator OHCI with bundled usb1/usb2 cable
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* - 1510 Innovator OHCI with custom usb0 cable, feeding 5V VBUS
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* - 1710 custom development board using alternate pin group
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* - 1710 H3 (with usb1 mini-AB) using standard Mini-B or OTG cables
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*/
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/*-------------------------------------------------------------------------*/
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#ifdef CONFIG_ARCH_OMAP_OTG
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static struct otg_transceiver *xceiv;
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/**
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* otg_get_transceiver - find the (single) OTG transceiver driver
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*
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* Returns the transceiver driver, after getting a refcount to it; or
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* null if there is no such transceiver. The caller is responsible for
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* releasing that count.
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*/
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struct otg_transceiver *otg_get_transceiver(void)
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{
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if (xceiv)
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get_device(xceiv->dev);
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return xceiv;
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}
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EXPORT_SYMBOL(otg_get_transceiver);
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int otg_set_transceiver(struct otg_transceiver *x)
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{
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if (xceiv && x)
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return -EBUSY;
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xceiv = x;
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return 0;
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}
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EXPORT_SYMBOL(otg_set_transceiver);
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#endif
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/*-------------------------------------------------------------------------*/
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2005-11-10 09:26:50 -05:00
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#if defined(CONFIG_ARCH_OMAP_OTG) || defined(CONFIG_ARCH_OMAP15XX)
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2005-07-10 14:58:15 -04:00
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static u32 __init omap_usb0_init(unsigned nwires, unsigned is_device)
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{
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u32 syscon1 = 0;
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2006-12-07 16:58:10 -05:00
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if (cpu_is_omap24xx())
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CONTROL_DEVCONF_REG &= ~USBT0WRMODEI(USB_BIDIR_TLL);
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2005-07-10 14:58:15 -04:00
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if (nwires == 0) {
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2006-12-07 16:58:10 -05:00
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if (cpu_class_is_omap1() && !cpu_is_omap15xx()) {
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2005-07-10 14:58:15 -04:00
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/* pulldown D+/D- */
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USB_TRANSCEIVER_CTRL_REG &= ~(3 << 1);
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}
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return 0;
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}
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2006-12-07 16:58:10 -05:00
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if (is_device) {
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if (cpu_is_omap24xx())
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omap_cfg_reg(J20_24XX_USB0_PUEN);
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else
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omap_cfg_reg(W4_USB_PUEN);
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}
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2005-07-10 14:58:15 -04:00
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2006-12-07 16:58:10 -05:00
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/* internal transceiver (unavailable on 17xx, 24xx) */
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if (!cpu_class_is_omap2() && nwires == 2) {
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2005-07-10 14:58:15 -04:00
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// omap_cfg_reg(P9_USB_DP);
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// omap_cfg_reg(R8_USB_DM);
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if (cpu_is_omap15xx()) {
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/* This works on 1510-Innovator */
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return 0;
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}
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/* NOTES:
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* - peripheral should configure VBUS detection!
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* - only peripherals may use the internal D+/D- pulldowns
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* - OTG support on this port not yet written
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*/
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USB_TRANSCEIVER_CTRL_REG &= ~(7 << 4);
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if (!is_device)
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USB_TRANSCEIVER_CTRL_REG |= (3 << 1);
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return 3 << 16;
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}
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/* alternate pin config, external transceiver */
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if (cpu_is_omap15xx()) {
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printk(KERN_ERR "no usb0 alt pin config on 15xx\n");
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return 0;
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}
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2006-12-07 16:58:10 -05:00
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if (cpu_is_omap24xx()) {
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omap_cfg_reg(K18_24XX_USB0_DAT);
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omap_cfg_reg(K19_24XX_USB0_TXEN);
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omap_cfg_reg(J14_24XX_USB0_SE0);
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if (nwires != 3)
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omap_cfg_reg(J18_24XX_USB0_RCV);
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} else {
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omap_cfg_reg(V6_USB0_TXD);
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omap_cfg_reg(W9_USB0_TXEN);
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omap_cfg_reg(W5_USB0_SE0);
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if (nwires != 3)
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omap_cfg_reg(Y5_USB0_RCV);
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}
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2005-07-10 14:58:15 -04:00
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2006-12-07 16:58:10 -05:00
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/* NOTE: SPEED and SUSP aren't configured here. OTG hosts
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* may be able to use I2C requests to set those bits along
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2007-05-11 15:40:30 -04:00
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* with VBUS switching and overcurrent detection.
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2006-12-07 16:58:10 -05:00
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*/
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2005-07-10 14:58:15 -04:00
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2006-12-07 16:58:10 -05:00
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if (cpu_class_is_omap1() && nwires != 6)
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2005-07-10 14:58:15 -04:00
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USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB2_UNI_R;
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switch (nwires) {
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case 3:
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syscon1 = 2;
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2006-12-07 16:58:10 -05:00
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if (cpu_is_omap24xx())
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CONTROL_DEVCONF_REG |= USBT0WRMODEI(USB_BIDIR);
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2005-07-10 14:58:15 -04:00
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break;
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case 4:
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syscon1 = 1;
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2006-12-07 16:58:10 -05:00
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if (cpu_is_omap24xx())
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CONTROL_DEVCONF_REG |= USBT0WRMODEI(USB_BIDIR);
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2005-07-10 14:58:15 -04:00
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break;
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case 6:
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syscon1 = 3;
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2006-12-07 16:58:10 -05:00
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if (cpu_is_omap24xx()) {
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omap_cfg_reg(J19_24XX_USB0_VP);
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omap_cfg_reg(K20_24XX_USB0_VM);
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CONTROL_DEVCONF_REG |= USBT0WRMODEI(USB_UNIDIR);
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} else {
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omap_cfg_reg(AA9_USB0_VP);
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omap_cfg_reg(R9_USB0_VM);
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USB_TRANSCEIVER_CTRL_REG |= CONF_USB2_UNI_R;
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}
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2005-07-10 14:58:15 -04:00
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break;
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default:
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printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
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0, nwires);
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}
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return syscon1 << 16;
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}
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static u32 __init omap_usb1_init(unsigned nwires)
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{
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u32 syscon1 = 0;
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2006-12-07 16:58:10 -05:00
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if (cpu_class_is_omap1() && !cpu_is_omap15xx() && nwires != 6)
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2005-07-10 14:58:15 -04:00
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USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB1_UNI_R;
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2006-12-07 16:58:10 -05:00
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if (cpu_is_omap24xx())
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CONTROL_DEVCONF_REG &= ~USBT1WRMODEI(USB_BIDIR_TLL);
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2005-07-10 14:58:15 -04:00
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if (nwires == 0)
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return 0;
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/* external transceiver */
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2006-12-07 16:58:10 -05:00
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if (cpu_class_is_omap1()) {
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omap_cfg_reg(USB1_TXD);
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omap_cfg_reg(USB1_TXEN);
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if (nwires != 3)
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omap_cfg_reg(USB1_RCV);
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}
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2005-07-10 14:58:15 -04:00
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if (cpu_is_omap15xx()) {
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omap_cfg_reg(USB1_SEO);
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omap_cfg_reg(USB1_SPEED);
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// SUSP
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} else if (cpu_is_omap1610() || cpu_is_omap5912()) {
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omap_cfg_reg(W13_1610_USB1_SE0);
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omap_cfg_reg(R13_1610_USB1_SPEED);
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// SUSP
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} else if (cpu_is_omap1710()) {
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omap_cfg_reg(R13_1710_USB1_SE0);
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// SUSP
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2006-12-07 16:58:10 -05:00
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} else if (cpu_is_omap24xx()) {
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/* NOTE: board-specific code must set up pin muxing for usb1,
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* since each signal could come out on either of two balls.
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*/
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2005-07-10 14:58:15 -04:00
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} else {
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2006-12-07 16:58:10 -05:00
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pr_debug("usb%d cpu unrecognized\n", 1);
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return 0;
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2005-07-10 14:58:15 -04:00
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}
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switch (nwires) {
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2006-12-07 16:58:10 -05:00
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case 2:
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if (!cpu_is_omap24xx())
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goto bad;
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/* NOTE: board-specific code must override this setting if
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* this TLL link is not using DP/DM
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*/
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syscon1 = 1;
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CONTROL_DEVCONF_REG |= USBT1WRMODEI(USB_BIDIR_TLL);
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break;
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2005-07-10 14:58:15 -04:00
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case 3:
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syscon1 = 2;
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2006-12-07 16:58:10 -05:00
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if (cpu_is_omap24xx())
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CONTROL_DEVCONF_REG |= USBT1WRMODEI(USB_BIDIR);
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2005-07-10 14:58:15 -04:00
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break;
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case 4:
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syscon1 = 1;
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2006-12-07 16:58:10 -05:00
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if (cpu_is_omap24xx())
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CONTROL_DEVCONF_REG |= USBT1WRMODEI(USB_BIDIR);
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2005-07-10 14:58:15 -04:00
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break;
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case 6:
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2006-12-07 16:58:10 -05:00
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if (cpu_is_omap24xx())
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goto bad;
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2005-07-10 14:58:15 -04:00
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syscon1 = 3;
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omap_cfg_reg(USB1_VP);
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omap_cfg_reg(USB1_VM);
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if (!cpu_is_omap15xx())
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USB_TRANSCEIVER_CTRL_REG |= CONF_USB1_UNI_R;
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break;
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default:
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2006-12-07 16:58:10 -05:00
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bad:
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2005-07-10 14:58:15 -04:00
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printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
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1, nwires);
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}
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return syscon1 << 20;
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}
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static u32 __init omap_usb2_init(unsigned nwires, unsigned alt_pingroup)
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{
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u32 syscon1 = 0;
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2006-12-07 16:58:10 -05:00
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if (cpu_is_omap24xx()) {
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CONTROL_DEVCONF_REG &= ~(USBT2WRMODEI(USB_BIDIR_TLL)
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| USBT2TLL5PI);
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alt_pingroup = 0;
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}
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/* NOTE omap1 erratum: must leave USB2_UNI_R set if usb0 in use */
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2005-07-10 14:58:15 -04:00
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if (alt_pingroup || nwires == 0)
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return 0;
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2006-12-07 16:58:10 -05:00
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if (cpu_class_is_omap1() && !cpu_is_omap15xx() && nwires != 6)
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2005-07-10 14:58:15 -04:00
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USB_TRANSCEIVER_CTRL_REG &= ~CONF_USB2_UNI_R;
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/* external transceiver */
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if (cpu_is_omap15xx()) {
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omap_cfg_reg(USB2_TXD);
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omap_cfg_reg(USB2_TXEN);
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omap_cfg_reg(USB2_SEO);
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if (nwires != 3)
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omap_cfg_reg(USB2_RCV);
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/* there is no USB2_SPEED */
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} else if (cpu_is_omap16xx()) {
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omap_cfg_reg(V6_USB2_TXD);
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omap_cfg_reg(W9_USB2_TXEN);
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omap_cfg_reg(W5_USB2_SE0);
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if (nwires != 3)
|
|
|
|
omap_cfg_reg(Y5_USB2_RCV);
|
|
|
|
// FIXME omap_cfg_reg(USB2_SPEED);
|
2006-12-07 16:58:10 -05:00
|
|
|
} else if (cpu_is_omap24xx()) {
|
|
|
|
omap_cfg_reg(Y11_24XX_USB2_DAT);
|
|
|
|
omap_cfg_reg(AA10_24XX_USB2_SE0);
|
|
|
|
if (nwires > 2)
|
|
|
|
omap_cfg_reg(AA12_24XX_USB2_TXEN);
|
|
|
|
if (nwires > 3)
|
|
|
|
omap_cfg_reg(AA6_24XX_USB2_RCV);
|
2005-07-10 14:58:15 -04:00
|
|
|
} else {
|
2006-12-07 16:58:10 -05:00
|
|
|
pr_debug("usb%d cpu unrecognized\n", 1);
|
|
|
|
return 0;
|
2005-07-10 14:58:15 -04:00
|
|
|
}
|
2006-12-07 16:58:10 -05:00
|
|
|
// if (cpu_class_is_omap1()) omap_cfg_reg(USB2_SUSP);
|
2005-07-10 14:58:15 -04:00
|
|
|
|
|
|
|
switch (nwires) {
|
2006-12-07 16:58:10 -05:00
|
|
|
case 2:
|
|
|
|
if (!cpu_is_omap24xx())
|
|
|
|
goto bad;
|
|
|
|
/* NOTE: board-specific code must override this setting if
|
|
|
|
* this TLL link is not using DP/DM
|
|
|
|
*/
|
|
|
|
syscon1 = 1;
|
|
|
|
CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_BIDIR_TLL);
|
|
|
|
break;
|
2005-07-10 14:58:15 -04:00
|
|
|
case 3:
|
|
|
|
syscon1 = 2;
|
2006-12-07 16:58:10 -05:00
|
|
|
if (cpu_is_omap24xx())
|
|
|
|
CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_BIDIR);
|
2005-07-10 14:58:15 -04:00
|
|
|
break;
|
|
|
|
case 4:
|
|
|
|
syscon1 = 1;
|
2006-12-07 16:58:10 -05:00
|
|
|
if (cpu_is_omap24xx())
|
|
|
|
CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_BIDIR);
|
|
|
|
break;
|
|
|
|
case 5:
|
|
|
|
if (!cpu_is_omap24xx())
|
|
|
|
goto bad;
|
|
|
|
omap_cfg_reg(AA4_24XX_USB2_TLLSE0);
|
|
|
|
/* NOTE: board-specific code must override this setting if
|
|
|
|
* this TLL link is not using DP/DM. Something must also
|
|
|
|
* set up OTG_SYSCON2.HMC_TLL{ATTACH,SPEED}
|
|
|
|
*/
|
|
|
|
syscon1 = 3;
|
|
|
|
CONTROL_DEVCONF_REG |= USBT2WRMODEI(USB_UNIDIR_TLL)
|
|
|
|
| USBT2TLL5PI;
|
2005-07-10 14:58:15 -04:00
|
|
|
break;
|
|
|
|
case 6:
|
2006-12-07 16:58:10 -05:00
|
|
|
if (cpu_is_omap24xx())
|
|
|
|
goto bad;
|
2005-07-10 14:58:15 -04:00
|
|
|
syscon1 = 3;
|
|
|
|
if (cpu_is_omap15xx()) {
|
|
|
|
omap_cfg_reg(USB2_VP);
|
|
|
|
omap_cfg_reg(USB2_VM);
|
|
|
|
} else {
|
|
|
|
omap_cfg_reg(AA9_USB2_VP);
|
|
|
|
omap_cfg_reg(R9_USB2_VM);
|
|
|
|
USB_TRANSCEIVER_CTRL_REG |= CONF_USB2_UNI_R;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
2006-12-07 16:58:10 -05:00
|
|
|
bad:
|
2005-07-10 14:58:15 -04:00
|
|
|
printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",
|
|
|
|
2, nwires);
|
|
|
|
}
|
|
|
|
return syscon1 << 24;
|
|
|
|
}
|
|
|
|
|
2005-11-10 09:26:50 -05:00
|
|
|
#endif
|
|
|
|
|
2005-07-10 14:58:15 -04:00
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
#if defined(CONFIG_USB_GADGET_OMAP) || \
|
|
|
|
defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE) || \
|
|
|
|
(defined(CONFIG_USB_OTG) && defined(CONFIG_ARCH_OMAP_OTG))
|
|
|
|
static void usb_release(struct device *dev)
|
|
|
|
{
|
|
|
|
/* normally not freed */
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef CONFIG_USB_GADGET_OMAP
|
|
|
|
|
|
|
|
static struct resource udc_resources[] = {
|
|
|
|
/* order is significant! */
|
|
|
|
{ /* registers */
|
|
|
|
.start = UDC_BASE,
|
|
|
|
.end = UDC_BASE + 0xff,
|
|
|
|
.flags = IORESOURCE_MEM,
|
|
|
|
}, { /* general IRQ */
|
2006-12-07 16:58:10 -05:00
|
|
|
.start = INT_USB_IRQ_GEN,
|
2005-07-10 14:58:15 -04:00
|
|
|
.flags = IORESOURCE_IRQ,
|
|
|
|
}, { /* PIO IRQ */
|
2006-12-07 16:58:10 -05:00
|
|
|
.start = INT_USB_IRQ_NISO,
|
2005-07-10 14:58:15 -04:00
|
|
|
.flags = IORESOURCE_IRQ,
|
|
|
|
}, { /* SOF IRQ */
|
2006-12-07 16:58:10 -05:00
|
|
|
.start = INT_USB_IRQ_ISO,
|
2005-07-10 14:58:15 -04:00
|
|
|
.flags = IORESOURCE_IRQ,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
|
|
|
static u64 udc_dmamask = ~(u32)0;
|
|
|
|
|
|
|
|
static struct platform_device udc_device = {
|
|
|
|
.name = "omap_udc",
|
|
|
|
.id = -1,
|
|
|
|
.dev = {
|
|
|
|
.release = usb_release,
|
|
|
|
.dma_mask = &udc_dmamask,
|
|
|
|
.coherent_dma_mask = 0xffffffff,
|
|
|
|
},
|
|
|
|
.num_resources = ARRAY_SIZE(udc_resources),
|
|
|
|
.resource = udc_resources,
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
|
|
|
|
|
|
|
|
/* The dmamask must be set for OHCI to work */
|
|
|
|
static u64 ohci_dmamask = ~(u32)0;
|
|
|
|
|
|
|
|
static struct resource ohci_resources[] = {
|
|
|
|
{
|
|
|
|
.start = OMAP_OHCI_BASE,
|
2006-12-07 16:58:10 -05:00
|
|
|
.end = OMAP_OHCI_BASE + 0xff,
|
2005-07-10 14:58:15 -04:00
|
|
|
.flags = IORESOURCE_MEM,
|
|
|
|
},
|
|
|
|
{
|
2006-12-07 16:58:10 -05:00
|
|
|
.start = INT_USB_IRQ_HGEN,
|
2005-07-10 14:58:15 -04:00
|
|
|
.flags = IORESOURCE_IRQ,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct platform_device ohci_device = {
|
|
|
|
.name = "ohci",
|
|
|
|
.id = -1,
|
|
|
|
.dev = {
|
|
|
|
.release = usb_release,
|
|
|
|
.dma_mask = &ohci_dmamask,
|
|
|
|
.coherent_dma_mask = 0xffffffff,
|
|
|
|
},
|
|
|
|
.num_resources = ARRAY_SIZE(ohci_resources),
|
|
|
|
.resource = ohci_resources,
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#if defined(CONFIG_USB_OTG) && defined(CONFIG_ARCH_OMAP_OTG)
|
|
|
|
|
|
|
|
static struct resource otg_resources[] = {
|
|
|
|
/* order is significant! */
|
|
|
|
{
|
|
|
|
.start = OTG_BASE,
|
|
|
|
.end = OTG_BASE + 0xff,
|
|
|
|
.flags = IORESOURCE_MEM,
|
|
|
|
}, {
|
2006-12-07 16:58:10 -05:00
|
|
|
.start = INT_USB_IRQ_OTG,
|
2005-07-10 14:58:15 -04:00
|
|
|
.flags = IORESOURCE_IRQ,
|
|
|
|
},
|
|
|
|
};
|
|
|
|
|
|
|
|
static struct platform_device otg_device = {
|
|
|
|
.name = "omap_otg",
|
|
|
|
.id = -1,
|
|
|
|
.dev = {
|
|
|
|
.release = usb_release,
|
|
|
|
},
|
|
|
|
.num_resources = ARRAY_SIZE(otg_resources),
|
|
|
|
.resource = otg_resources,
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
#define ULPD_CLOCK_CTRL_REG __REG16(ULPD_CLOCK_CTRL)
|
|
|
|
#define ULPD_SOFT_REQ_REG __REG16(ULPD_SOFT_REQ)
|
|
|
|
|
|
|
|
|
|
|
|
// FIXME correct answer depends on hmc_mode,
|
2006-12-07 16:58:10 -05:00
|
|
|
// as does (on omap1) any nonzero value for config->otg port number
|
2005-07-10 14:58:15 -04:00
|
|
|
#ifdef CONFIG_USB_GADGET_OMAP
|
|
|
|
#define is_usb0_device(config) 1
|
|
|
|
#else
|
|
|
|
#define is_usb0_device(config) 0
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
#ifdef CONFIG_ARCH_OMAP_OTG
|
|
|
|
|
|
|
|
void __init
|
|
|
|
omap_otg_init(struct omap_usb_config *config)
|
|
|
|
{
|
|
|
|
u32 syscon = OTG_SYSCON_1_REG & 0xffff;
|
|
|
|
int status;
|
|
|
|
int alt_pingroup = 0;
|
|
|
|
|
|
|
|
/* NOTE: no bus or clock setup (yet?) */
|
|
|
|
|
|
|
|
syscon = OTG_SYSCON_1_REG & 0xffff;
|
|
|
|
if (!(syscon & OTG_RESET_DONE))
|
|
|
|
pr_debug("USB resets not complete?\n");
|
|
|
|
|
|
|
|
// OTG_IRQ_EN_REG = 0;
|
|
|
|
|
|
|
|
/* pin muxing and transceiver pinouts */
|
|
|
|
if (config->pins[0] > 2) /* alt pingroup 2 */
|
|
|
|
alt_pingroup = 1;
|
|
|
|
syscon |= omap_usb0_init(config->pins[0], is_usb0_device(config));
|
|
|
|
syscon |= omap_usb1_init(config->pins[1]);
|
|
|
|
syscon |= omap_usb2_init(config->pins[2], alt_pingroup);
|
|
|
|
pr_debug("OTG_SYSCON_1_REG = %08x\n", syscon);
|
|
|
|
OTG_SYSCON_1_REG = syscon;
|
|
|
|
|
|
|
|
syscon = config->hmc_mode;
|
|
|
|
syscon |= USBX_SYNCHRO | (4 << 16) /* B_ASE0_BRST */;
|
|
|
|
#ifdef CONFIG_USB_OTG
|
|
|
|
if (config->otg)
|
|
|
|
syscon |= OTG_EN;
|
|
|
|
#endif
|
2006-12-07 16:58:10 -05:00
|
|
|
if (cpu_class_is_omap1())
|
|
|
|
pr_debug("USB_TRANSCEIVER_CTRL_REG = %03x\n", USB_TRANSCEIVER_CTRL_REG);
|
2005-07-10 14:58:15 -04:00
|
|
|
pr_debug("OTG_SYSCON_2_REG = %08x\n", syscon);
|
|
|
|
OTG_SYSCON_2_REG = syscon;
|
|
|
|
|
|
|
|
printk("USB: hmc %d", config->hmc_mode);
|
2006-12-07 16:58:10 -05:00
|
|
|
if (!alt_pingroup)
|
2005-07-10 14:58:15 -04:00
|
|
|
printk(", usb2 alt %d wires", config->pins[2]);
|
|
|
|
else if (config->pins[0])
|
|
|
|
printk(", usb0 %d wires%s", config->pins[0],
|
|
|
|
is_usb0_device(config) ? " (dev)" : "");
|
|
|
|
if (config->pins[1])
|
|
|
|
printk(", usb1 %d wires", config->pins[1]);
|
|
|
|
if (!alt_pingroup && config->pins[2])
|
|
|
|
printk(", usb2 %d wires", config->pins[2]);
|
|
|
|
if (config->otg)
|
|
|
|
printk(", Mini-AB on usb%d", config->otg - 1);
|
|
|
|
printk("\n");
|
|
|
|
|
2006-12-07 16:58:10 -05:00
|
|
|
if (cpu_class_is_omap1()) {
|
|
|
|
/* leave USB clocks/controllers off until needed */
|
|
|
|
ULPD_SOFT_REQ_REG &= ~SOFT_USB_CLK_REQ;
|
|
|
|
ULPD_CLOCK_CTRL_REG &= ~USB_MCLK_EN;
|
|
|
|
ULPD_CLOCK_CTRL_REG |= DIS_USB_PVCI_CLK;
|
|
|
|
}
|
2005-07-10 14:58:15 -04:00
|
|
|
syscon = OTG_SYSCON_1_REG;
|
|
|
|
syscon |= HST_IDLE_EN|DEV_IDLE_EN|OTG_IDLE_EN;
|
|
|
|
|
|
|
|
#ifdef CONFIG_USB_GADGET_OMAP
|
|
|
|
if (config->otg || config->register_dev) {
|
|
|
|
syscon &= ~DEV_IDLE_EN;
|
|
|
|
udc_device.dev.platform_data = config;
|
|
|
|
/* FIXME patch IRQ numbers for omap730 */
|
|
|
|
status = platform_device_register(&udc_device);
|
|
|
|
if (status)
|
|
|
|
pr_debug("can't register UDC device, %d\n", status);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
|
|
|
|
if (config->otg || config->register_host) {
|
|
|
|
syscon &= ~HST_IDLE_EN;
|
|
|
|
ohci_device.dev.platform_data = config;
|
|
|
|
if (cpu_is_omap730())
|
|
|
|
ohci_resources[1].start = INT_730_USB_HHC_1;
|
|
|
|
status = platform_device_register(&ohci_device);
|
|
|
|
if (status)
|
|
|
|
pr_debug("can't register OHCI device, %d\n", status);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifdef CONFIG_USB_OTG
|
|
|
|
if (config->otg) {
|
|
|
|
syscon &= ~OTG_IDLE_EN;
|
|
|
|
otg_device.dev.platform_data = config;
|
|
|
|
if (cpu_is_omap730())
|
|
|
|
otg_resources[1].start = INT_730_USB_OTG;
|
|
|
|
status = platform_device_register(&otg_device);
|
|
|
|
if (status)
|
|
|
|
pr_debug("can't register OTG device, %d\n", status);
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
pr_debug("OTG_SYSCON_1_REG = %08x\n", syscon);
|
|
|
|
OTG_SYSCON_1_REG = syscon;
|
|
|
|
|
|
|
|
status = 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
#else
|
|
|
|
static inline void omap_otg_init(struct omap_usb_config *config) {}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
|
2005-11-10 09:26:50 -05:00
|
|
|
#ifdef CONFIG_ARCH_OMAP15XX
|
2005-07-10 14:58:15 -04:00
|
|
|
|
|
|
|
#define ULPD_DPLL_CTRL_REG __REG16(ULPD_DPLL_CTRL)
|
|
|
|
#define DPLL_IOB (1 << 13)
|
|
|
|
#define DPLL_PLL_ENABLE (1 << 4)
|
|
|
|
#define DPLL_LOCK (1 << 0)
|
|
|
|
|
|
|
|
#define ULPD_APLL_CTRL_REG __REG16(ULPD_APLL_CTRL)
|
|
|
|
#define APLL_NDPLL_SWITCH (1 << 0)
|
|
|
|
|
|
|
|
|
|
|
|
static void __init omap_1510_usb_init(struct omap_usb_config *config)
|
|
|
|
{
|
|
|
|
unsigned int val;
|
|
|
|
|
|
|
|
omap_usb0_init(config->pins[0], is_usb0_device(config));
|
|
|
|
omap_usb1_init(config->pins[1]);
|
|
|
|
omap_usb2_init(config->pins[2], 0);
|
|
|
|
|
|
|
|
val = omap_readl(MOD_CONF_CTRL_0) & ~(0x3f << 1);
|
|
|
|
val |= (config->hmc_mode << 1);
|
|
|
|
omap_writel(val, MOD_CONF_CTRL_0);
|
|
|
|
|
|
|
|
printk("USB: hmc %d", config->hmc_mode);
|
|
|
|
if (config->pins[0])
|
|
|
|
printk(", usb0 %d wires%s", config->pins[0],
|
|
|
|
is_usb0_device(config) ? " (dev)" : "");
|
|
|
|
if (config->pins[1])
|
|
|
|
printk(", usb1 %d wires", config->pins[1]);
|
|
|
|
if (config->pins[2])
|
|
|
|
printk(", usb2 %d wires", config->pins[2]);
|
|
|
|
printk("\n");
|
|
|
|
|
|
|
|
/* use DPLL for 48 MHz function clock */
|
|
|
|
pr_debug("APLL %04x DPLL %04x REQ %04x\n", ULPD_APLL_CTRL_REG,
|
|
|
|
ULPD_DPLL_CTRL_REG, ULPD_SOFT_REQ_REG);
|
|
|
|
ULPD_APLL_CTRL_REG &= ~APLL_NDPLL_SWITCH;
|
|
|
|
ULPD_DPLL_CTRL_REG |= DPLL_IOB | DPLL_PLL_ENABLE;
|
|
|
|
ULPD_SOFT_REQ_REG |= SOFT_UDC_REQ | SOFT_DPLL_REQ;
|
|
|
|
while (!(ULPD_DPLL_CTRL_REG & DPLL_LOCK))
|
|
|
|
cpu_relax();
|
|
|
|
|
|
|
|
#ifdef CONFIG_USB_GADGET_OMAP
|
|
|
|
if (config->register_dev) {
|
2005-11-10 09:26:50 -05:00
|
|
|
int status;
|
|
|
|
|
2005-07-10 14:58:15 -04:00
|
|
|
udc_device.dev.platform_data = config;
|
|
|
|
status = platform_device_register(&udc_device);
|
|
|
|
if (status)
|
|
|
|
pr_debug("can't register UDC device, %d\n", status);
|
|
|
|
/* udc driver gates 48MHz by D+ pullup */
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
|
|
|
|
if (config->register_host) {
|
2005-11-10 09:26:50 -05:00
|
|
|
int status;
|
|
|
|
|
2005-07-10 14:58:15 -04:00
|
|
|
ohci_device.dev.platform_data = config;
|
|
|
|
status = platform_device_register(&ohci_device);
|
|
|
|
if (status)
|
|
|
|
pr_debug("can't register OHCI device, %d\n", status);
|
|
|
|
/* hcd explicitly gates 48MHz */
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
|
|
|
#else
|
|
|
|
static inline void omap_1510_usb_init(struct omap_usb_config *config) {}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
/*-------------------------------------------------------------------------*/
|
|
|
|
|
|
|
|
static struct omap_usb_config platform_data;
|
|
|
|
|
|
|
|
static int __init
|
|
|
|
omap_usb_init(void)
|
|
|
|
{
|
|
|
|
const struct omap_usb_config *config;
|
|
|
|
|
|
|
|
config = omap_get_config(OMAP_TAG_USB, struct omap_usb_config);
|
|
|
|
if (config == NULL) {
|
|
|
|
printk(KERN_ERR "USB: No board-specific "
|
|
|
|
"platform config found\n");
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
platform_data = *config;
|
|
|
|
|
2006-12-07 16:58:10 -05:00
|
|
|
if (cpu_is_omap730() || cpu_is_omap16xx() || cpu_is_omap24xx())
|
2005-07-10 14:58:15 -04:00
|
|
|
omap_otg_init(&platform_data);
|
|
|
|
else if (cpu_is_omap15xx())
|
|
|
|
omap_1510_usb_init(&platform_data);
|
|
|
|
else {
|
|
|
|
printk(KERN_ERR "USB: No init for your chip yet\n");
|
|
|
|
return -ENODEV;
|
|
|
|
}
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
subsys_initcall(omap_usb_init);
|