On 31 December 2014 at 01:05, Bin Meng bmeng.cn@gmail.com wrote:
There are many pci uart devices which are ns16550 compatible. We can describe them in the board dts file and use it as the U-Boot serial console as specified in the chosen node 'stdout-path' property.
Those pci uart devices can have their register be memory-mapped, or i/o-mapped. The driver will try to use the memory-mapped register if the reg property in the node has an entry to describe the memory-mapped register, otherwise i/o-mapped register will be used.
Signed-off-by: Bin Meng bmeng.cn@gmail.com Acked-by: Simon Glass sjg@chromium.org
Applied to u-boot-x86/next, thanks!
Changes in v4: None Changes in v3:
- Update to use 'memory-mapped' and 'i/o-mapped' in several places
- Use 'Processor Local Bus' instead of 'plb'
- Change the logic in ns16550_serial_ofdata_to_platdata() to avoid goto
Changes in v2:
- New patch to support ns16550 compatible pci uart devices
drivers/serial/ns16550.c | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+)