[U-Boot] [PATCH] musb: Add host support for DM365 EVM

[Prathap Srinivas]

Add support for musb host on DM365 EVM.

Signed-off-by: Prathap Srinivas <msprathap at ti.com>
---
 drivers/usb/musb/davinci.c         |   18 +++++++++++++++-
 drivers/usb/musb/davinci.h         |    1 +
 include/configs/davinci_dm365evm.h |   40 ++++++++++++++++++++++++++++++++++++
 3 files changed, 58 insertions(+), 1 deletions(-)

diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index a7648fc..6a56d72 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 +42,24 @@ struct davinci_usb_regs *dregs;
 static u8 phy_on(void)
 {
 	u32 timeout;
+	u32 val;
 
 	/* 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 +85,9 @@ 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..e58de93 100644
--- a/include/configs/davinci_dm365evm.h
+++ b/include/configs/davinci_dm365evm.h
@@ -86,6 +86,46 @@
 #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>
 
-- 
1.6.2.4