Add support for musb host on DM365 EVM.
Signed-off-by: Prathap Srinivas msprathap@ti.com --- Changes from v1: - fixed review comments from Remy. drivers/usb/musb/davinci.c | 21 ++++++++++++++++++- drivers/usb/musb/davinci.h | 1 + include/configs/davinci_dm365evm.h | 38 ++++++++++++++++++++++++++++++++++++ 3 files changed, 58 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c index a7648fc..8fbadc9 100644 --- a/drivers/usb/musb/davinci.c +++ b/drivers/usb/musb/davinci.c @@ -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; diff --git a/drivers/usb/musb/davinci.h b/drivers/usb/musb/davinci.h index f6751bf..e0829d6 100644 --- a/drivers/usb/musb/davinci.h +++ b/drivers/usb/musb/davinci.h @@ -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 */ diff --git a/include/configs/davinci_dm365evm.h b/include/configs/davinci_dm365evm.h index c01426b..0828676 100644 --- a/include/configs/davinci_dm365evm.h +++ b/include/configs/davinci_dm365evm.h @@ -86,6 +86,44 @@ #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>