1 files changed, 129 insertions, 0 deletions
diff --git a/drivers/usb/musb/omap3.c b/drivers/usb/musb/omap3.c
new file mode 100644
index 0000000..3e502e7
--- /dev/null
+++ b/drivers/usb/musb/omap3.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (c) 2009 Wind River Systems, Inc.
+ * Tom Rix <Tom.Rix@windriver.com>
+ *
+ * This is file is based on
+ * repository git.gitorious.org/u-boot-omap3/mainline.git,
+ * branch omap3-dev-usb, file drivers/usb/host/omap3530_usb.c
+ *
+ * This is the unique part of its copyright :
+ *
+ * ------------------------------------------------------------------------
+ *
+ * Copyright (c) 2009 Texas Instruments
+ *
+ * ------------------------------------------------------------------------
+ *
+ * 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., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <twl4030.h>
+#include "omap3.h"
+
+static int platform_needs_initialization = 1;
+
+struct musb_config musb_cfg = {
+	(struct	musb_regs *)MENTOR_USB0_BASE,
+	OMAP3_USB_TIMEOUT,
+	0
+};
+
+/*
+ * OMAP3 USB OTG registers.
+ */
+struct omap3_otg_regs {
+	u32	revision;
+	u32	sysconfig;
+	u32	sysstatus;
+	u32	interfsel;
+	u32	simenable;
+	u32	forcestdby;
+};
+
+static struct omap3_otg_regs *otg;
+
+#define OMAP3_OTG_SYSCONFIG_SMART_STANDBY_MODE		0x2000
+#define OMAP3_OTG_SYSCONFIG_NO_STANDBY_MODE		0x1000
+#define OMAP3_OTG_SYSCONFIG_SMART_IDLE_MODE		0x0010
+#define OMAP3_OTG_SYSCONFIG_NO_IDLE_MODE		0x0008
+#define OMAP3_OTG_SYSCONFIG_ENABLEWAKEUP		0x0004
+#define OMAP3_OTG_SYSCONFIG_SOFTRESET			0x0002
+#define OMAP3_OTG_SYSCONFIG_AUTOIDLE			0x0001
+
+#define OMAP3_OTG_SYSSTATUS_RESETDONE			0x0001
+
+#define OMAP3_OTG_INTERFSEL_OMAP			0x0001
+
+#define OMAP3_OTG_FORCESTDBY_STANDBY			0x0001
+
+
+#ifdef DEBUG_MUSB_OMAP3
+static void musb_db_otg_regs(void)
+{
+	u32 l;
+	l = readl(&otg->revision);
+	serial_printf("OTG_REVISION 0x%x\n", l);
+	l = readl(&otg->sysconfig);
+	serial_printf("OTG_SYSCONFIG 0x%x\n", l);
+	l = readl(&otg->sysstatus);
+	serial_printf("OTG_SYSSTATUS 0x%x\n", l);
+	l = readl(&otg->interfsel);
+	serial_printf("OTG_INTERFSEL 0x%x\n", l);
+	l = readl(&otg->forcestdby);
+	serial_printf("OTG_FORCESTDBY 0x%x\n", l);
+}
+#endif
+
+int musb_platform_init(void)
+{
+	int ret = -1;
+
+	if (platform_needs_initialization) {
+		u32 stdby;
+
+		if (twl4030_usb_ulpi_init()) {
+			serial_printf("ERROR: %s Could not initialize PHY\n",
+				__PRETTY_FUNCTION__);
+			goto end;
+		}
+
+		otg = (struct omap3_otg_regs *)OMAP3_OTG_BASE;
+
+		/* Set OTG to always be on */
+		writel(OMAP3_OTG_SYSCONFIG_NO_STANDBY_MODE |
+		       OMAP3_OTG_SYSCONFIG_NO_IDLE_MODE, &otg->sysconfig);
+
+		/* Set the interface */
+		writel(OMAP3_OTG_INTERFSEL_OMAP, &otg->interfsel);
+
+		/* Clear force standby */
+		stdby = readl(&otg->forcestdby);
+		stdby &= ~OMAP3_OTG_FORCESTDBY_STANDBY;
+		writel(stdby, &otg->forcestdby);
+
+		platform_needs_initialization = 0;
+	}
+
+	ret = platform_needs_initialization;
+end:
+	return ret;
+
+}
+
+void musb_platform_deinit(void)
+{
+	/* noop */
+}