[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