ff7df4f7ad
code (This goes hand in hand, as some parts of serial were hardcoded to one architecture until now) * include/uart8250.h: add TTYSx defines that are used in multiple places. formerly part of arch/x86/serial.c. Drop init_uart8250 (unused) * lib/uart8250.c: drop arch/x86/config.h usage Drop init_uart8250 (unused) * arch/powerpc/Kconfig, arch/x86/Kconfig: add CONFIG_ARCH to contain the directory name under LinuxBIOSv3/arch/ * arch/x86/console.c: drop some dead code. Drop hardcoded config.h values. use generic uart8250.h header * arch/x86/cachemain.c: Drop hardcoded config.h values. Still use hardcoded ROM size for now. (To be changed later) * arch/x86/config.h: dropped, no longer needed * arch/x86/serial.c: factor out generically used defines to uart8250.h * Makefile: use mainboard architecture instead of target architecture to choose include path. Read .xcompile if available (configure replacement). Create build.h with compile time and version. * util/xcompile/xcompile: new file. Search for supported cross compilers linkers, assemblers (and potentially supported compiler flags etc) This is a very slick configure replacement. * util/dtc/Makefile: fix Makefile for cross compilation Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://coreboot.org/repository/LinuxBIOSv3@190 f3766cd6-281f-0410-b1cd-43a5c92072e9
48 lines
1.2 KiB
C
48 lines
1.2 KiB
C
#ifndef UART8250_H
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#define UART8250_H
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/* Base Address */
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#if defined(CONFIG_CONSOLE_SERIAL_COM1)
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#define TTYSx_BASE 0x3f8
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#elif defined(CONFIG_CONSOLE_SERIAL_COM2)
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#define TTYSx_BASE 0x2f8
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#else
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#define TTYSx_BASE 0x3f8
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#warning no serial port set
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#endif
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#if defined(CONFIG_CONSOLE_SERIAL_115200)
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#define TTYSx_BAUD 115200
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#elif defined(CONFIG_CONSOLE_SERIAL_57600)
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#define TTYSx_BAUD 57600
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#elif defined(CONFIG_CONSOLE_SERIAL_38400)
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#define TTYSx_BAUD 38400
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#elif defined(CONFIG_CONSOLE_SERIAL_19200)
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#define TTYSx_BAUD 19200
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#elif defined(CONFIG_CONSOLE_SERIAL_9600)
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#define TTYSx_BAUD 9600
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#else // default
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#define TTYSx_BAUD 115200
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#warning no serial speed set
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#endif
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#if ((115200%TTYSx_BAUD) != 0)
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#error Bad ttys0 baud rate
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#endif
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#define TTYSx_DIV (115200/TTYSx_BAUD)
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/* Line Control Settings */
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#ifndef TTYSx_LCS
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/* Set 8bit, 1 stop bit, no parity */
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#define TTYSx_LCS 0x3
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#endif
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#define UART_LCS TTYSx_LCS
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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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#endif /* UART8250_H */
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