usb: musb: dsps: Add the sw_babble_control() and Enable for newer silicon

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Add sw_babble_control() logic to differentiate between transient
babble and real babble condition. Also add the SW babble control
register definitions.

Babble control register logic is implemented in the latest
revision of AM335x.

Find whether we are running on newer silicon. The babble control
register reads 0x4 by default in newer silicon as opposed to 0
in old versions of AM335x. Based on this enable the sw babble
control logic.

Signed-off-by: George Cherian <george.cherian@ti.com>
Tested-by: Bin Liu <b-liu@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>

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This commit is contained in:

George Cherian 2014-07-16 18:22:12 +05:30 • committed by Felipe Balbi

parent d871c622e2

commit 371254ce46

2 changed files with 90 additions and 6 deletions

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89

drivers/usb/musb/musb_dsps.c

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7

drivers/usb/musb/musb_regs.h

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