From 5f36e231e9dbffb5264612e5b5817ab574a5e5db Mon Sep 17 00:00:00 2001 From: Alexander Shishkin Date: Fri, 11 May 2012 17:25:47 +0300 Subject: usb: chipidea: add support for roles Add some generic code for roles and implement simple role switching based on ID pin state and/or a sysfs file. At this, we also rename the device to ci_hdrc, which is what it is. The "manual" switch is made into a sysfs file and not debugfs, because it might be useful even in non-debug context. For some boards, like sheevaplug, it seems to be the only way to switch roles without modifying the hardware, since the ID pin is always grounded. Signed-off-by: Alexander Shishkin Signed-off-by: Greg Kroah-Hartman --- drivers/usb/chipidea/bits.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'drivers/usb/chipidea/bits.h') diff --git a/drivers/usb/chipidea/bits.h b/drivers/usb/chipidea/bits.h index 5fbff11cf220..62c35af1a5af 100644 --- a/drivers/usb/chipidea/bits.h +++ b/drivers/usb/chipidea/bits.h @@ -50,6 +50,24 @@ #define DEVLC_PSPD (0x03UL << 25) #define DEVLC_PSPD_HS (0x02UL << 25) +/* OTGSC */ +#define OTGSC_IDPU BIT(5) +#define OTGSC_ID BIT(8) +#define OTGSC_AVV BIT(9) +#define OTGSC_ASV BIT(10) +#define OTGSC_BSV BIT(11) +#define OTGSC_BSE BIT(12) +#define OTGSC_IDIS BIT(16) +#define OTGSC_AVVIS BIT(17) +#define OTGSC_ASVIS BIT(18) +#define OTGSC_BSVIS BIT(19) +#define OTGSC_BSEIS BIT(20) +#define OTGSC_IDIE BIT(24) +#define OTGSC_AVVIE BIT(25) +#define OTGSC_ASVIE BIT(26) +#define OTGSC_BSVIE BIT(27) +#define OTGSC_BSEIE BIT(28) + /* USBMODE */ #define USBMODE_CM (0x03UL << 0) #define USBMODE_CM_IDLE (0x00UL << 0) -- cgit v1.2.3