switch-coreboot/include/uart8250.h
Stefan Reinauer c275218a89 Add a first bit of a framework. Builds the following parts, in
accordance to the newboot document:

* reset vector (16 bytes)
* vpd (240bytes)
* boot block (8k - 256b)
* lar archive (256-8 k)

The boot block is kind of simple, still. It enables pmode, car, and
starts looking for an initram module in the lar archive.

Note: This doesnt do much at the moment,
as gas seems to produce buggy code in init.S.

Take this as a suggestion of how it might work and please provide
patches fixing it and bringing it into shape.

Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>



git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@62 f3766cd6-281f-0410-b1cd-43a5c92072e9
2007-01-29 22:09:50 +00:00

15 lines
442 B
C

#ifndef UART8250_H
#define UART8250_H
struct uart8250 {
unsigned int baud;
/* Do I need an lcs parameter here? */
};
unsigned char uart8250_rx_byte(unsigned base_port);
int uart8250_can_rx_byte(unsigned base_port);
void uart8250_tx_byte(unsigned base_port, unsigned char data);
void uart8250_init(unsigned base_port, unsigned divisor, unsigned lcs);
void init_uart8250(unsigned base_port, struct uart8250 *uart);
#endif /* UART8250_H */