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