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| /rk3399_rockchip-uboot/include/ |
| H A D | twl6030.h | 6313c6500484ed85892f425e3ca93f706fd9a2ea Sat Feb 27 18:19:04 UTC 2016 Paul Kocialkowski <contact@paulk.fr> power: twl6030: Clear VUSB_IN_PMID bit on USB device setup
When booting from USB, the bootrom sets the VUSB_IN_PMID bit of the MISC2
register of the TWL6030. However, U-Boot sets the VUSB_IN_VSYS bit to enable
VBUS input. As both bits are contradictory, enabling both disables the input,
according to the TWL6030 TRM.
Thus, we need to clear the VUSB_IN_PMID bit in case of an USB boot (which could
just as well be a memory boot after USB timed out).
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
|
| /rk3399_rockchip-uboot/drivers/power/ |
| H A D | twl6030.c | 6313c6500484ed85892f425e3ca93f706fd9a2ea Sat Feb 27 18:19:04 UTC 2016 Paul Kocialkowski <contact@paulk.fr> power: twl6030: Clear VUSB_IN_PMID bit on USB device setup
When booting from USB, the bootrom sets the VUSB_IN_PMID bit of the MISC2
register of the TWL6030. However, U-Boot sets the VUSB_IN_VSYS bit to enable
VBUS input. As both bits are contradictory, enabling both disables the input,
according to the TWL6030 TRM.
Thus, we need to clear the VUSB_IN_PMID bit in case of an USB boot (which could
just as well be a memory boot after USB timed out).
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
|