[U-Boot] [PATCH 3/4 v5] DA8xx: Add MUSB host support

Gupta, Ajay Kumar ajay.gupta at ti.com
Tue Nov 17 15:04:55 CET 2009


Remy,

Any comment on DA8xx USB support patches?

These patch set depends on DA8xx base support patches which are available
only on uboot-ti tree.

Regards,
Ajay
> -----Original Message-----
> From: u-boot-bounces at lists.denx.de [mailto:u-boot-bounces at lists.denx.de]
> On Behalf Of Gupta, Ajay Kumar
> Sent: Sunday, November 15, 2009 11:19 AM
> To: u-boot at lists.denx.de
> Subject: Re: [U-Boot] [PATCH 3/4 v5] DA8xx: Add MUSB host support
> 
> Hi,
> > Tested USB host functionality on DA830 EVM.
> >
> > Signed-off-by: Ajay Kumar Gupta <ajay.gupta at ti.com>
> > Signed-off-by: Swaminathan S <swami.iyer at ti.com>
> > ---
> >  drivers/usb/musb/Makefile |    1 +
> >  drivers/usb/musb/da8xx.c  |  139
> > +++++++++++++++++++++++++++++++++++++++++++++
> >  drivers/usb/musb/da8xx.h  |  103 +++++++++++++++++++++++++++++++++
> >  include/usb.h             |    3 +-
> >  4 files changed, 245 insertions(+), 1 deletions(-)
> >  create mode 100644 drivers/usb/musb/da8xx.c
> >  create mode 100644 drivers/usb/musb/da8xx.h
> >
> > diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile
> > index 09e0a5f..eb4d8fd 100644
> > --- a/drivers/usb/musb/Makefile
> > +++ b/drivers/usb/musb/Makefile
> <snip..>
> > +
> > +	/* reset the controller */
> > +	writel(0x1, da8xx_usb_regs->control);
> > +	udelay(5000);
> > +
> > +	/* start the on-chip usb phy and its pll */
> > +	if (phy_on() == 0)
> > +		return -1;
> > +
> > +	/* Returns zero if e.g. not clocked */
> > +	revision = readl(da8xx_usb_regs->revision);
> 
> '&' is missing, will resubmit the patch set.
> 
> Regards,
> Ajay
> > +	if (revision == 0)
> > +		return -1;
> > +
> > +	/* Disable all interrupts */
> > +	writel((DA8XX_USB_USBINT_MASK | DA8XX_USB_TXINT_MASK |
> > +		DA8XX_USB_RXINT_MASK), da8xx_usb_regs->intmsk_set);
> > +	return 0;
> > +}
> > +
> > +/*
> > + * This function performs DA8xx platform specific deinitialization for
> > usb0.
> > + */
> > +void musb_platform_deinit(void)
> > +{
> > +	/* Turn of the phy */
> > +	phy_off();
> > +
> > +	/* flush any interrupts */
> > +	writel((DA8XX_USB_USBINT_MASK | DA8XX_USB_TXINT_MASK |
> > +		DA8XX_USB_RXINT_MASK), da8xx_usb_regs->intmsk_clr);
> > +	writel(0, da8xx_usb_regs->eoi);
> > +}
> > diff --git a/drivers/usb/musb/da8xx.h b/drivers/usb/musb/da8xx.h
> > new file mode 100644
> > index 0000000..93234f0
> > --- /dev/null
> > +++ b/drivers/usb/musb/da8xx.h
> > @@ -0,0 +1,103 @@
> > +/*
> > + * da8xx.h -- TI's DA8xx platform specific usb wrapper definitions.
> > + *
> > + * Author: Ajay Kumar Gupta <ajay.gupta at ti.com>
> > + *
> > + * Based on drivers/usb/musb/davinci.h
> > + *
> > + * Copyright (C) 2009 Texas Instruments Incorporated
> > + *
> > + * This program is free software; you can redistribute it and/or modify
> > + * it under the terms of the GNU General Public License as published by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + *
> > + * This program is distributed in the hope that it will be useful,
> > + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> > + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
> > + * GNU General Public License for more details.
> > + *
> > + * You should have received a copy of the GNU General Public License
> > + * along with this program; if not, write to the Free Software
> > + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
> > + */
> > +#ifndef __DA8XX_MUSB_H__
> > +#define __DA8XX_MUSB_H__
> > +
> > +#include <asm/arch/hardware.h>
> > +#include <asm/arch/gpio_defs.h>
> > +#include "musb_core.h"
> > +
> > +/* Base address of da8xx usb0 wrapper */
> > +#define DA8XX_USB_OTG_BASE  0x01E00000
> > +
> > +/* Base address of da8xx musb core */
> > +#define DA8XX_USB_OTG_CORE_BASE (DA8XX_USB_OTG_BASE + 0x400)
> > +
> > +/* Timeout for DA8xx usb module */
> > +#define DA8XX_USB_OTG_TIMEOUT 0x3FFFFFF
> > +
> > +/*
> > + * DA8xx platform USB wrapper register overlay.
> > + */
> > +struct da8xx_usb_regs {
> > +	dv_reg	revision;
> > +	dv_reg	control;
> > +	dv_reg 	status;
> > +	dv_reg 	emulation;
> > +	dv_reg 	mode;
> > +	dv_reg 	autoreq;
> > +	dv_reg 	srpfixtime;
> > +	dv_reg 	teardown;
> > +	dv_reg 	intsrc;
> > +	dv_reg 	intsrc_set;
> > +	dv_reg 	intsrc_clr;
> > +	dv_reg 	intmsk;
> > +	dv_reg 	intmsk_set;
> > +	dv_reg 	intmsk_clr;
> > +	dv_reg 	intsrcmsk;
> > +	dv_reg 	eoi;
> > +	dv_reg 	intvector;
> > +	dv_reg 	grndis_size[4];
> > +};
> > +
> > +#define da8xx_usb_regs ((struct da8xx_usb_regs *)DA8XX_USB_OTG_BASE)
> > +
> > +/* DA8XX interrupt bits definitions */
> > +#define DA8XX_USB_TX_ENDPTS_MASK  0x1f	/* ep0 + 4 tx */
> > +#define DA8XX_USB_RX_ENDPTS_MASK  0x1e	/* 4 rx */
> > +#define DA8XX_USB_TXINT_SHIFT	  0
> > +#define DA8XX_USB_RXINT_SHIFT	  8
> > +
> > +#define DA8XX_USB_USBINT_MASK	  0x01ff0000	/* 8 Mentor, DRVVBUS
> > */
> > +#define DA8XX_USB_TXINT_MASK \
> > +		(DA8XX_USB_TX_ENDPTS_MASK << DA8XX_USB_TXINT_SHIFT)
> > +#define DA8XX_USB_RXINT_MASK \
> > +		(DA8XX_USB_RX_ENDPTS_MASK << DA8XX_USB_RXINT_SHIFT)
> > +
> > +/* DA8xx CFGCHIP2 (USB 2.0 PHY Control) register bits */
> > +#define CFGCHIP2_PHYCLKGD	(1 << 17)
> > +#define CFGCHIP2_VBUSSENSE	(1 << 16)
> > +#define CFGCHIP2_RESET		(1 << 15)
> > +#define CFGCHIP2_OTGMODE	(3 << 13)
> > +#define CFGCHIP2_NO_OVERRIDE	(0 << 13)
> > +#define CFGCHIP2_FORCE_HOST	(1 << 13)
> > +#define CFGCHIP2_FORCE_DEVICE 	(2 << 13)
> > +#define CFGCHIP2_FORCE_HOST_VBUS_LOW (3 << 13)
> > +#define CFGCHIP2_USB1PHYCLKMUX	(1 << 12)
> > +#define CFGCHIP2_USB2PHYCLKMUX	(1 << 11)
> > +#define CFGCHIP2_PHYPWRDN	(1 << 10)
> > +#define CFGCHIP2_OTGPWRDN	(1 << 9)
> > +#define CFGCHIP2_DATPOL 	(1 << 8)
> > +#define CFGCHIP2_USB1SUSPENDM	(1 << 7)
> > +#define CFGCHIP2_PHY_PLLON	(1 << 6)	/* override PLL suspend */
> > +#define CFGCHIP2_SESENDEN	(1 << 5)	/* Vsess_end comparator */
> > +#define CFGCHIP2_VBDTCTEN	(1 << 4)	/* Vbus comparator */
> > +#define CFGCHIP2_REFFREQ	(0xf << 0)
> > +#define CFGCHIP2_REFFREQ_12MHZ	(1 << 0)
> > +#define CFGCHIP2_REFFREQ_24MHZ	(2 << 0)
> > +#define CFGCHIP2_REFFREQ_48MHZ	(3 << 0)
> > +
> > +#define DA8XX_USB_VBUS_GPIO	(1 << 15)
> > +#endif	/* __DA8XX_MUSB_H__ */
> > +
> > diff --git a/include/usb.h b/include/usb.h
> > index 7c47098..7c56ace 100644
> > --- a/include/usb.h
> > +++ b/include/usb.h
> > @@ -183,7 +183,8 @@ struct usb_device {
> >  #if defined(CONFIG_USB_UHCI) || defined(CONFIG_USB_OHCI) || \
> >  	defined(CONFIG_USB_EHCI) || defined(CONFIG_USB_OHCI_NEW) || \
> >  	defined(CONFIG_USB_SL811HS) || defined(CONFIG_USB_ISP116X_HCD) || \
> > -	defined(CONFIG_USB_R8A66597_HCD) || defined(CONFIG_USB_DAVINCI)
> > +	defined(CONFIG_USB_R8A66597_HCD) || defined(CONFIG_USB_DAVINCI) || \
> > +	defined(CONFIG_USB_DA8XX)
> >
> >  int usb_lowlevel_init(void);
> >  int usb_lowlevel_stop(void);
> > --
> > 1.6.2.4
> 
> _______________________________________________
> U-Boot mailing list
> U-Boot at lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot



More information about the U-Boot mailing list