How to config sol uart/serial io addr on ast2500?
junhengdi at 163.com
Tue Jun 21 16:16:06 AEST 2022
As I know by default , ast2500 on espi or lpc is IO slave with base io addr 0x3f8 . Cpu console send uart/com data to ast2500 by access io addr 0x3f8 which is mapped to espi or lpc.Then ast2500 get the data and send to one of uart.
I have several questions about the realization or operation as follows:
1 I want to know the function of espi slave 0x3f8 on ast2500 is realization by some kernel drivers or solidified on the chip rom?
2 How to config the uart/serial base io addr such as 0x2f8 ,0x2e8 by ast2500 register?
3 How to config which ast2500 uart will interactive with 0x3f8 by ast2500 register?
Any advice will be appreciated.
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