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musb: Add host support for DM365 EVM

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Add support for musb host on DM365 EVM.

Signed-off-by: Prathap Srinivas <msprathap@ti.com>
This commit is contained in:
Prathap Srinivas 2010-01-11 15:36:46 +05:30 committed by Remy Bohmer
parent ec2aadb408
commit 6e20e64f5c
3 changed files with 58 additions and 2 deletions
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21
drivers/usb/musb/davinci.c
View File

@ -24,6 +24,7 @@
#include <common.h>
#include <asm/io.h>
#include "davinci.h"
#include <asm/arch/hardware.h>
/* MUSB platform configuration */
struct musb_config musb_cfg = {
@ -41,10 +42,25 @@ struct davinci_usb_regs *dregs;
static u8 phy_on(void)
{
u32 timeout;
#ifdef DAVINCI_DM365EVM
u32 val;
#endif
/* Wait until the USB phy is turned on */
#ifdef DAVINCI_DM365EVM
writel(USBPHY_PHY24MHZ | USBPHY_SESNDEN |
USBPHY_VBDTCTEN, USBPHY_CTL_PADDR);
#else
writel(USBPHY_SESNDEN | USBPHY_VBDTCTEN, USBPHY_CTL_PADDR);
#endif
timeout = musb_cfg.timeout;
#ifdef DAVINCI_DM365EVM
/* Set the ownership of GIO33 to USB */
val = readl(PINMUX4);
val &= ~(PINMUX4_USBDRVBUS_BITCLEAR);
val |= PINMUX4_USBDRVBUS_BITSET;
writel(val, PINMUX4);
#endif
while (timeout--)
if (readl(USBPHY_CTL_PADDR) & USBPHY_PHYCLKGD)
return 1;
@ -70,8 +86,9 @@ int musb_platform_init(void)
u32 revision;
/* enable USB VBUS */
#ifndef DAVINCI_DM365EVM
enable_vbus();
#endif
/* start the on-chip USB phy and its pll */
if (!phy_on())
return -1;

1
drivers/usb/musb/davinci.h
View File

@ -63,6 +63,7 @@ struct davinci_usb_regs {
/* Integrated highspeed/otg PHY */
#define USBPHY_CTL_PADDR (DAVINCI_SYSTEM_MODULE_BASE + 0x34)
#define USBPHY_PHY24MHZ (1 << 13)
#define USBPHY_PHYCLKGD (1 << 8)
#define USBPHY_SESNDEN (1 << 7) /* v(sess_end) comparator */
#define USBPHY_VBDTCTEN (1 << 6) /* v(bus) comparator */

38
include/configs/davinci_dm365evm.h
View File

@ -85,6 +85,44 @@
#define CONFIG_SYS_MAX_NAND_DEVICE 1
#define CONFIG_SYS_NAND_MAX_CHIPS 2
#define PINMUX4_USBDRVBUS_BITCLEAR 0x3000
#define PINMUX4_USBDRVBUS_BITSET 0x2000
/* USB Configuration */
#define CONFIG_USB_DAVINCI
#define CONFIG_MUSB_HCD
#ifdef CONFIG_USB_DAVINCI
#define CONFIG_CMD_USB /* include support for usb */
#define CONFIG_CMD_STORAGE /* include support for usb */
#define CONFIG_CMD_FAT /* include support for FAT/storage*/
#define CONFIG_DOS_PARTITION /* include support for FAT/storage*/
#endif
#ifdef CONFIG_MUSB_HCD /* include support for usb host */
#define CONFIG_CMD_USB /* include support for usb cmd */
#define CONFIG_USB_STORAGE /* MSC class support */
#define CONFIG_CMD_STORAGE /* inclue support for usb-storage cmd */
#define CONFIG_CMD_FAT /* inclue support for FAT/storage */
#define CONFIG_DOS_PARTITION /* inclue support for FAT/storage */
#ifdef CONFIG_USB_KEYBOARD /* HID class support */
#define CONFIG_SYS_USB_EVENT_POLL
#define CONFIG_PREBOOT "usb start"
#endif /* CONFIG_USB_KEYBOARD */
#endif /* CONFIG_MUSB_HCD */
#ifdef CONFIG_MUSB_UDC
#define CONFIG_USB_DEVICE 1
#define CONFIG_USB_TTY 1
#define CONFIG_SYS_CONSOLE_IS_IN_ENV 1
#define CONFIG_USBD_VENDORID 0x0451
#define CONFIG_USBD_PRODUCTID 0x5678
#define CONFIG_USBD_MANUFACTURER "Texas Instruments"
#define CONFIG_USBD_PRODUCT_NAME "DM365VM"
#endif /* CONFIG_MUSB_UDC */
/* U-Boot command configuration */
#include <config_cmd_default.h>