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| author |   George Cherian <george.cherian@ti.com> | 2014-07-16 18:22:12 +0530 |
|---|---|---|
| committer |   Felipe Balbi <balbi@ti.com> | 2014-07-16 10:00:02 -0500 |
| commit | 371254ce462fcea2d09ffa30e20f01538b833080 (patch) | |
| tree | 8478c839d30fcef3cdb90864d03450be6b38622c /drivers/usb/musb/musb_regs.h | |
| parent | usb: musb: core: Convert the musb_platform_reset to have a return value. (diff) | |
| download | linux-dev-371254ce462fcea2d09ffa30e20f01538b833080.tar.xz linux-dev-371254ce462fcea2d09ffa30e20f01538b833080.zip | |
usb: musb: dsps: Add the sw_babble_control() and Enable for newer silicon
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>
Diffstat (limited to 'drivers/usb/musb/musb_regs.h')
| -rw-r--r-- | drivers/usb/musb/musb_regs.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_regs.h b/drivers/usb/musb/musb_regs.h index 03f2655af290..b9bcda5e3945 100644 --- a/drivers/usb/musb/musb_regs.h +++ b/drivers/usb/musb/musb_regs.h @@ -72,6 +72,12 @@ #define MUSB_DEVCTL_HR 0x02 #define MUSB_DEVCTL_SESSION 0x01 +/* BABBLE_CTL */ +#define MUSB_BABBLE_FORCE_TXIDLE 0x80 +#define MUSB_BABBLE_SW_SESSION_CTRL 0x40 +#define MUSB_BABBLE_STUCK_J 0x20 +#define MUSB_BABBLE_RCV_DISABLE 0x04 + /* MUSB ULPI VBUSCONTROL */ #define MUSB_ULPI_USE_EXTVBUS 0x01 #define MUSB_ULPI_USE_EXTVBUSIND 0x02 @@ -246,6 +252,7 @@ */ #define MUSB_DEVCTL 0x60 /* 8 bit */ +#define MUSB_BABBLE_CTL 0x61 /* 8 bit */ /* These are always controlled through the INDEX register */ #define MUSB_TXFIFOSZ 0x62 /* 8-bit (see masks) */ |