diff options
| author | Peter Chen <peter.chen@freescale.com> | 2013-10-23 15:47:49 +0800 |
|---|---|---|
| committer | Peter Chen <peter.chen@freescale.com> | 2013-11-06 11:05:01 +0800 |
| commit | 11ab4d99c2a09ec7b01e32a06a1933b94d7a30bc (patch) | |
| tree | fe03901d0b8d55e7b3d06b27f8cd4e461e9fe4b2 /include | |
| parent | 7229aca4df2217f5ecdc17a0f8bef0ec2402f062 (diff) | |
ENGR00286159-1 usb: chipidea: add freescale imx28 special write register method
According to Freescale imx28 Errata, "ENGR119653 USB: ARM to USB
register error issue", All USB register write operations must
use the ARM SWP instruction. So, we implement special hw_write
and hw_test_and_clear for imx28.
Discussion for it at below:
http://marc.info/?l=linux-usb&m=137996395529294&w=2
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/usb/chipidea.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h index 7d399671a566..708bd119627f 100644 --- a/include/linux/usb/chipidea.h +++ b/include/linux/usb/chipidea.h @@ -24,6 +24,7 @@ struct ci_hdrc_platform_data { * but otg is not supported (no register otgsc). */ #define CI_HDRC_DUAL_ROLE_NOT_OTG BIT(4) +#define CI_HDRC_IMX28_WRITE_FIX BIT(5) enum usb_dr_mode dr_mode; #define CI_HDRC_CONTROLLER_RESET_EVENT 0 #define CI_HDRC_CONTROLLER_STOPPED_EVENT 1 |