aspeed_vuart_readb
reg = aspeed_vuart_readb(vuart, ASPEED_VUART_GCRB);
reg = aspeed_vuart_readb(vuart, ASPEED_VUART_GCRB);
reg = aspeed_vuart_readb(vuart, ASPEED_VUART_GCRA);
u8 reg = aspeed_vuart_readb(vuart, ASPEED_VUART_GCRA);
u8 reg = aspeed_vuart_readb(vuart, ASPEED_VUART_GCRA);
reg = aspeed_vuart_readb(vuart, ASPEED_VUART_GCRA);
addr = (aspeed_vuart_readb(vuart, ASPEED_VUART_ADDRH) << 8) |
(aspeed_vuart_readb(vuart, ASPEED_VUART_ADDRL));