70342a7f51
The port for console remains to be a compile time constant. The Kconfig option is changed to select an UART port with index to avoid putting map of UART base addresses in Kconfigs. With this change it is possible to have other than debug console on different UART port. Change-Id: Ie1845a946f8d3b2604ef5404edb31b2e811f3ccd Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: http://review.coreboot.org/5342 Tested-by: build bot (Jenkins) Reviewed-by: David Hendricks <dhendrix@chromium.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
74 lines
2.3 KiB
C
74 lines
2.3 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2012 The ChromiumOS Authors. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef CONSOLE_UART_H
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#define CONSOLE_UART_H
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#include <rules.h>
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#include <stdint.h>
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/* Return the clock frequency UART uses as reference clock for
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* baudrate generator. */
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unsigned int uart_platform_refclk(void);
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/* Return the baudrate determined from option_table, or when that is
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* not used, CONFIG_TTYS0_BAUD.
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*/
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unsigned int default_baudrate(void);
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/* Returns the divisor value for a given baudrate.
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* The formula to satisfy is:
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* refclk / divisor = baudrate * oversample
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*/
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unsigned int uart_baudrate_divisor(unsigned int baudrate,
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unsigned int refclk, unsigned int oversample);
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void uart_init(int idx);
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void uart_tx_byte(int idx, unsigned char data);
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void uart_tx_flush(int idx);
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unsigned char uart_rx_byte(int idx);
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unsigned int uart_platform_base(int idx);
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#if !defined(__ROMCC__)
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static inline void *uart_platform_baseptr(int idx)
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{
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return (void *)uart_platform_base(idx);
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}
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void oxford_remap(unsigned int new_base);
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#define __CONSOLE_SERIAL_ENABLE__ CONFIG_CONSOLE_SERIAL && \
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(ENV_BOOTBLOCK || ENV_ROMSTAGE || ENV_RAMSTAGE || \
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(ENV_SMM && CONFIG_DEBUG_SMI))
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#if __CONSOLE_SERIAL_ENABLE__
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static inline void __uart_init(void) { uart_init(CONFIG_UART_FOR_CONSOLE); }
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static inline void __uart_tx_byte(u8 data) { uart_tx_byte(CONFIG_UART_FOR_CONSOLE, data); }
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static inline void __uart_tx_flush(void) { uart_tx_flush(CONFIG_UART_FOR_CONSOLE); }
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#else
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static inline void __uart_init(void) {}
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static inline void __uart_tx_byte(u8 data) {}
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static inline void __uart_tx_flush(void) {}
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#endif
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#endif /* __ROMCC__ */
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#endif /* CONSOLE_UART_H */
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