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| author | Peter Chen <peter.chen@freescale.com> | 2014-01-10 05:51:27 (GMT) |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-06 19:22:14 (GMT) |
| commit | 03df63f78245cd9db67a2b4f049348783f31ed6e (patch) | |
| tree | 04c4f6a1bfd041d12f2f992523a94b266e951fd3 /drivers/usb/phy/phy-twl4030-usb.c | |
| parent | 5a650dc266e2d2eddbfb8c2b75c69374e7f58630 (diff) | |
| download | linux-fsl-qoriq-03df63f78245cd9db67a2b4f049348783f31ed6e.tar.xz | |
usb: chipidea: add freescale imx28 special write register method
commit ed8f8318d2ef3e5f9e4ddf79349508c116b68d7f upstream.
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
This patch is needed for stable tree 3.11+.
Cc: robert.hodaszi@digi.com
Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Tested-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/phy/phy-twl4030-usb.c')
0 files changed, 0 insertions, 0 deletions