Commit Graph

62 Commits

Author SHA1 Message Date
Anatolij Gustschin 3df0045325 usb: fix building musb drivers
Commit 3dacdf11 "usb: factor out state_string() on otg drivers"
broke building musb drivers since there is already another
otg_state_string() function in musb drivers, but with different
prototype. Fix musb drivers to use common otg_state_string(), too.

Also provide a nop for otg_state_string() if CONFIG_USB_OTG_UTILS
is not defined.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2011-05-06 18:16:39 -07:00
Ajay Kumar Gupta a9c037832e musb: am35x: fix compile error due to control apis
commit 4814ced511 (OMAP:
control: move plat-omap/control.h to mach-omap2/control.h)
moved <plat/control.h> to another location, preventing
drivers from accessing it, so we need to pass function
pointers from arch code to be able to talk to internal
PHY on AM35x.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-12-10 10:21:35 +02:00
Felipe Balbi 92b48df24e usb: musb: drop board_set_vbus
that's not used anymore. So let's drop it.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-12-10 10:21:33 +02:00
Felipe Balbi 6f783e287c usb: musb: am35x: usb dev_pm_ops structure
instead of using musb_platform_suspend_resume,
we can use dev_pm_ops and let platform_device
core handle when to call musb_core's suspend and
glue layer's suspend.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-12-10 10:21:30 +02:00
Felipe Balbi 496351413a usb: musb: drop musb_platform_save/restore_context
... that can be easily folded into the
musb_platform_suspend/resume calls.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-12-10 10:21:26 +02:00
Felipe Balbi 0349176120 usb: musb: move clock handling to glue layer
musb core doesn't need to know about platform
specific details. So start moving clock
handling to platform glue layer and make
musb core agnostic about that.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-12-10 10:21:24 +02:00
Felipe Balbi f7ec94370f usb: musb: pass platform_ops via platform_data
... then we don't need to export any symbols
from glue layer to musb_core.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-12-10 10:21:23 +02:00
Felipe Balbi 0919dfc12a usb: musb: am35x: give it a context structure
that structure currently only holds a device
pointer to our own platform_device and musb's
platform_device, but soon it will hold pointers
to our clock structures and glue-specific bits
and pieces.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-12-10 10:21:18 +02:00
Felipe Balbi ce40c5767a usb: musb: split am35x to its own platform_driver
Just adding its own platform_driver, not really
using it yet.

When all HW glue layers are converted, more patches
will come to split power management code from musb_core
and move it completely to HW glue layer.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-12-10 10:21:13 +02:00
Felipe Balbi 743411b3f3 usb: musb: make all glue layer export struct musb_platform_ops
preparing to a big refactor on musb code. We need
to be able to compile in all glue layers (or at
least all ARM-based ones) together and have a
working binary.

While preparing for that, we move every glue
layer to export only one symbol, which is
a struct musb_platform_ops, and make all
other functions static.

Later patches will come to allow for compiling
all glue layers together and have a working
binary.

Signed-off-by: Felipe Balbi <balbi@ti.com>
2010-12-07 09:19:39 +02:00
Ajay Kumar Gupta 843bb1d0ff USB: musb: AM35x: Workaround for fifo read issue
AM35x supports only 32bit read operations so we need to have
workaround for 8bit and 16bit read operations.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:22:17 -07:00
Ajay Kumar Gupta eb83092c2b USB: musb: add musb support for AM35x
AM35x has musb interface and uses CPPI4.1 DMA engine.
Current patch supports only PIO mode. DMA support can be
added later once basic CPPI4.1 DMA patch is accepted.

Also added USB_MUSB_AM35X which is required to differentiate musb ips
between OMAP3x and AM35x. This config would be used to for below
purposes,
        - Select am35x.c instead of omap2430.c for compilation
          at drivers/usb/musb directory. Please note there are
          significant differneces in these two files as musb ip
          in quite different on AM35x.

	  Please note that in multi omap configuration only omap2430.c
	  file will get compiled and we would require to select only
	  AM35x based board config to compile am35x.c

        - Select workaround codes applicable for AM35x musb issues.
          one such workaround is for bytewise read issue on AM35x.

Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-10-22 10:22:16 -07:00