Backend driver for MUSB OTG controllers found on TI AM33xx and
TI81xx SoCs (tested with AM33xx only).
Signed-off-by: Ilya Yanok ilya.ya...@cogentembedded.com
---
Changes in v2:
- rename backend config option to CONFIG_USB_MUSB_DSPS
- we are providing host support now so add yourself to usb.h
arch/arm/include/asm/omap_musb.h | 25 ++
drivers/usb/musb-new/Makefile|1 +
drivers/usb/musb-new/musb_dsps.c | 771 ++
include/usb.h|3 +-
4 files changed, 799 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/include/asm/omap_musb.h
create mode 100644 drivers/usb/musb-new/musb_dsps.c
diff --git a/arch/arm/include/asm/omap_musb.h b/arch/arm/include/asm/omap_musb.h
new file mode 100644
index 000..0081a68
--- /dev/null
+++ b/arch/arm/include/asm/omap_musb.h
@@ -0,0 +1,25 @@
+/*
+ * Board data structure for musb gadget on OMAPs
+ *
+ * Copyright (C) 2012, Ilya Yanok ilya.ya...@gmail.com
+ *
+ * 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.
+ */
+
+#ifndef __ASM_ARM_OMAP_MUSB_H
+#define __ASM_ARM_OMAP_MUSB_H
+
+extern struct musb_platform_ops musb_dsps_ops;
+
+struct omap_musb_board_data {
+ void (*set_phy_power)(u8 on);
+};
+#endif /* __ASM_ARM_OMAP_MUSB_H */
diff --git a/drivers/usb/musb-new/Makefile b/drivers/usb/musb-new/Makefile
index f01fb16..a753423 100644
--- a/drivers/usb/musb-new/Makefile
+++ b/drivers/usb/musb-new/Makefile
@@ -9,6 +9,7 @@ LIB := $(obj)libusb_musb-new.o
COBJS-$(CONFIG_MUSB_GADGET) += musb_gadget.o musb_gadget_ep0.o musb_core.o
COBJS-$(CONFIG_MUSB_GADGET) += musb_uboot.o
COBJS-$(CONFIG_MUSB_HOST) += musb_host.o musb_core.o musb_uboot.o
+COBJS-$(CONFIG_USB_MUSB_DSPS) += musb_dsps.o
CFLAGS_NO_WARN := $(call cc-option,-Wno-unused-variable) \
$(call cc-option,-Wno-unused-but-set-variable) \
diff --git a/drivers/usb/musb-new/musb_dsps.c b/drivers/usb/musb-new/musb_dsps.c
new file mode 100644
index 000..9a03917
--- /dev/null
+++ b/drivers/usb/musb-new/musb_dsps.c
@@ -0,0 +1,771 @@
+/*
+ * Texas Instruments DSPS platforms glue layer
+ *
+ * Copyright (C) 2012, by Texas Instruments
+ *
+ * Based on the am35x glue layer code.
+ *
+ * This file is part of the Inventra Controller Driver for Linux.
+ *
+ * The Inventra Controller Driver for Linux is free software; you
+ * can redistribute it and/or modify it under the terms of the GNU
+ * General Public License version 2 as published by the Free Software
+ * Foundation.
+ *
+ * The Inventra Controller Driver for Linux 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 The Inventra Controller Driver for Linux ; if not,
+ * write to the Free Software Foundation, Inc., 59 Temple Place,
+ * Suite 330, Boston, MA 02111-1307 USA
+ *
+ * musb_dsps.c will be a common file for all the TI DSPS platforms
+ * such as dm64x, dm36x, dm35x, da8x, am35x and ti81x.
+ * For now only ti81x is using this and in future davinci.c, am35x.c
+ * da8xx.c would be merged to this file after testing.
+ */
+
+#define __UBOOT__
+#ifndef __UBOOT__
+#include linux/init.h
+#include linux/io.h
+#include linux/err.h
+#include linux/platform_device.h
+#include linux/dma-mapping.h
+#include linux/pm_runtime.h
+#include linux/module.h
+
+#include linux/of.h
+#include linux/of_device.h
+#include linux/of_address.h
+
+#include plat/usb.h
+#else
+#include common.h
+#include asm/omap_musb.h
+#include linux-compat.h
+#endif
+
+#include musb_core.h
+
+/**
+ * avoid using musb_readx()/musb_writex() as glue layer should not be
+ * dependent on musb core layer symbols.
+ */
+static inline u8 dsps_readb(const void __iomem *addr, unsigned offset)
+ { return __raw_readb(addr + offset); }
+
+static inline u32 dsps_readl(const void __iomem *addr, unsigned offset)
+ { return __raw_readl(addr + offset); }
+
+static inline void dsps_writeb(void __iomem *addr, unsigned offset, u8 data)
+ { __raw_writeb(data, addr + offset); }
+
+static inline void dsps_writel(void __iomem *addr, unsigned offset, u32 data)
+ { __raw_writel(data, addr + offset); }
+
+/**
+ * DSPS musb wrapper register offset.
+ * FIXME: This should be expanded to have all the wrapper registers from TI
DSPS
+ * musb ips.
+ */
+struct dsps_musb_wrapper {
+ u16
