Ajay,
We have a problem with your licensing
> Subject: [U-Boot] [PATCH 3/4 v2] DA8xx: Add MUSB host support
>
> Tested USB host functionality on DA830 EVM.
>
> Signed-off-by: Ajay Kumar Gupta <ajay.gu...@ti.com>
> Signed-off-by: Swaminathan S <swami.i...@ti.com>
> ---
> drivers/usb/musb/Makefile | 1 +
> drivers/usb/musb/da8xx.c | 138
> +++++++++++++++++++++++++++++++++++++++++++++
> drivers/usb/musb/da8xx.h | 79 ++++++++++++++++++++++++++
> include/usb.h | 3 +-
> 4 files changed, 220 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
> @@ -27,6 +27,7 @@ LIB := $(obj)libusb_musb.a
>
> COBJS-$(CONFIG_MUSB_HCD) += musb_hcd.o musb_core.o
> COBJS-$(CONFIG_USB_DAVINCI) += davinci.o
> +COBJS-$(CONFIG_USB_DA8XX) += da8xx.o
>
> COBJS := $(COBJS-y)
> SRCS := $(COBJS:.o=.c)
> diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
> new file mode 100644
> index 0000000..5b02e33
> --- /dev/null
> +++ b/drivers/usb/musb/da8xx.c
> @@ -0,0 +1,138 @@
> +/*
> + * da8xx.c - TI's DA8xx platform specific usb wrapper functions.
> + *
> + * Author: Ajay Kumar Gupta <ajay.gu...@ti.com>
> + *
> + * Based on drivers/usb/musb/davinci.c
> + *
> + * Copyright (c) 2009 Texas Instruments Incorporated
> + *
> + * This package is free software; you can redistribute it and/or
> + * modify it under the terms of the license found in the file
> + * named COPYING that should have accompanied this file.
> + *
> + * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
> + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
> + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
This is not going to work. I have discussed offline with Wolfgang and Tom.
This is going to probably get a NAK from both of them unless they have had a
change of heart in the last month.
I know what you have done is in response to a possible U-Boot moving to GPL v3.
> + *
> + */
> +#include <common.h>
> +#include <asm/arch/hardware.h>
> +#include <asm/arch/gpio_defs.h>
> +
> +#include "da8xx.h"
> +
> +/* MUSB platform configuration */
> +struct musb_config musb_cfg = {
> + (struct musb_regs *)DA8XX_USB_OTG_CORE_BASE,
> + DA8XX_USB_OTG_TIMEOUT,
> + 0
> +};
> +
> +/*
> + * This function enables VBUS by driving the GPIO Bank4 Pin 15 high.
> + */
> +static void enable_vbus(void)
> +{
> + u32 value;
> +
> + /* configure GPIO bank4 pin 15 in output direction */
> + value = readl(&davinci_gpio_bank45->dir);
> + writel((value & (~DA8XX_USB_VBUS_GPIO)), &davinci_gpio_bank45->dir);
> +
> + /* set GPIO bank4 pin 15 high to drive VBUS */
> + value = readl(&davinci_gpio_bank45->set_data);
> + writel((value | DA8XX_USB_VBUS_GPIO), &davinci_gpio_bank45-
> >set_data);
> +}
> +
> +/*
> + * Enable the usb0 phy. This initialization procedure is explained in
> + * the DA8xx USB user guide document.
> + */
> +static u8 phy_on(void)
> +{
> + u32 timeout;
> + u32 cfgchip2;
> +
> + cfgchip2 = readl(&davinci_syscfg_regs->cfgchip2);
> +
> + cfgchip2 &= ~(CFGCHIP2_RESET | CFGCHIP2_PHYPWRDN | CFGCHIP2_OTGPWRDN
> |
> + CFGCHIP2_OTGMODE | CFGCHIP2_REFFREQ);
> + cfgchip2 |= CFGCHIP2_SESENDEN | CFGCHIP2_VBDTCTEN |
> CFGCHIP2_PHY_PLLON |
> + CFGCHIP2_REFFREQ_24MHZ;
> +
> + writel(cfgchip2, &davinci_syscfg_regs->cfgchip2);
> +
> + /* wait until the usb phy pll locks */
> + timeout = musb_cfg.timeout;
> + while (timeout--)
> + if (readl(&davinci_syscfg_regs->cfgchip2) & CFGCHIP2_PHYCLKGD)
> + return 1;
> +
> + /* USB phy was not turned on */
> + return 0;
> +}
> +
> +/*
> + * Disable the usb phy
> + */
> +static void phy_off(void)
> +{
> + u32 cfgchip2;
> +
> + /*
> + * Power down the on-chip PHY.
> + */
> + cfgchip2 = readl(&davinci_syscfg_regs->cfgchip2);
> + cfgchip2 &= ~CFGCHIP2_PHY_PLLON;
> + cfgchip2 |= CFGCHIP2_PHYPWRDN | CFGCHIP2_OTGPWRDN;
> + writel(cfgchip2, &davinci_syscfg_regs->cfgchip2);
> +}
> +
> +/*
> + * This function performs DA8xx platform specific initialization for
> usb0.
> + */
> +int musb_platform_init(void)
> +{
> + u32 revision;
> +
> + /* enable psc for usb2.0 */
> + lpsc_on(33);
> +
> + /* enable usb vbus */
> + enable_vbus();
> +
> + /* reset the controller */
> + writel(0x1, (DA8XX_USB_OTG_BASE + DA8XX_USB_CTRL_REG));
> + 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_OTG_BASE + DA8XX_USB_VERSION_REG);
> + if (revision == 0)
> + return -1;
> +
> + /* Disable all interrupts */
> + writel((DA8XX_USB_USBINT_MASK | DA8XX_USB_TXINT_MASK |
> + DA8XX_USB_RXINT_MASK),
> + (DA8XX_USB_OTG_BASE + DA8XX_USB_INT_MASK_SET_REG));
> + 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_OTG_BASE + DA8XX_USB_INT_MASK_CLR_REG));
> + writel(0, (DA8XX_USB_OTG_BASE + DA8XX_USB_EOI_REG));
> +}
> diff --git a/drivers/usb/musb/da8xx.h b/drivers/usb/musb/da8xx.h
> new file mode 100644
> index 0000000..7d36588
> --- /dev/null
> +++ b/drivers/usb/musb/da8xx.h
> @@ -0,0 +1,79 @@
> +/*
> + * da8xx.h -- TI's DA8xx platform specific usb wrapper definitions.
> + *
> + * Author: Ajay Kumar Gupta <ajay.gu...@ti.com>
> + *
> + * Based on drivers/usb/musb/davinci.h
> + *
> + * Copyright (c) 2009 Texas Instruments Incorporated
> + *
> + * This package is free software; you can redistribute it and/or
> + * modify it under the terms of the license found in the file
> + * named COPYING that should have accompanied this file.
> + *
> + * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
> + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
> + * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
> + *
> + */
Same here
> +#ifndef __DA8XX_MUSB_H__
> +#define __DA8XX_MUSB_H__
> +
> +#include "musb_core.h"
> +
> +/* extern functions */
> +extern void lpsc_on(unsigned int id);
> +
> +/* 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
> +
> +/* For now include usb OTG module registers here */
> +#define DA8XX_USB_VERSION_REG 0x00
> +#define DA8XX_USB_CTRL_REG 0x04
> +#define DA8XX_USB_INT_MASK_SET_REG 0x30
> +#define DA8XX_USB_INT_MASK_CLR_REG 0x34
> +#define DA8XX_USB_EOI_REG 0x3c
> +
> +#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@lists.denx.de
> http://lists.denx.de/mailman/listinfo/u-boot
_______________________________________________
U-Boot mailing list
U-Boot@lists.denx.de
http://lists.denx.de/mailman/listinfo/u-boot
