diff options
| author | Mihail Zenkov <Mihail_Zenkov@rockbox.org> | 2014-09-27 23:58:51 +0200 |
|---|---|---|
| committer | Michael Giacomelli <giac2000@hotmail.com> | 2014-09-28 21:07:45 +0200 |
| commit | 02414bf286e4ff6a08d19e951bff1e0905d330b4 (patch) | |
| tree | a0040c236528b0b71616bef6bd713865e338ab94 /firmware | |
| parent | 515a3c50fca3f6e623683dc2c4c77c5b84911b12 (diff) | |
Make sure the USB PHY is disabled after use. Patch by Mihail Zenkov who has
measured several milliamps power reduction from having the PHY disabled.
Change-Id: I29e55222eb50acf2023ac1113a90612029c580af
Reviewed-on: http://gerrit.rockbox.org/988
Reviewed-by: Michael Giacomelli <giac2000@hotmail.com>
Tested: Michael Giacomelli <giac2000@hotmail.com>
Diffstat (limited to 'firmware')
| -rw-r--r-- | firmware/target/arm/usb-s3c6400x.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/firmware/target/arm/usb-s3c6400x.c b/firmware/target/arm/usb-s3c6400x.c index 48521aa622..af4e564442 100644 --- a/firmware/target/arm/usb-s3c6400x.c +++ b/firmware/target/arm/usb-s3c6400x.c @@ -354,6 +354,12 @@ void usb_drv_exit(void) CGU_USB = 0; bitclr32(&CGU_PERI, CGU_USB_CLOCK_ENABLE); + + /* reset USB_PHY to prevent power consumption */ + CCU_SRC = CCU_SRC_USB_PHY_EN; + CCU_SRL = CCU_SRL_MAGIC_NUMBER; + CCU_SRL = 0; + } #elif CONFIG_CPU == S5L8701 || CONFIG_CPU == S5L8702 static void usb_reset(void) |