Hi,
-----Original Message----- From: Gupta, Ajay Kumar Sent: Sunday, November 15, 2009 11:04 AM To: u-boot@lists.denx.de Cc: linux@bohmer.net; Tom.Rix@windriver.com; Gupta, Ajay Kumar; Subbrathnam, Swaminathan Subject: [PATCH 3/4 v4] DA8xx: Add MUSB host support
Tested USB host functionality on DA830 EVM.
Signed-off-by: Ajay Kumar Gupta ajay.gupta@ti.com Signed-off-by: Swaminathan S swami.iyer@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@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