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/*
* xen/arch/arm/arm64/debug.S
*
* Wrapper for early printk
*
* Julien Grall <julien.grall@linaro.org>
* Copyright (c) 2013 Linaro Limited.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <asm/early_printk.h>
#ifdef CONFIG_EARLY_PRINTK_INC
#include CONFIG_EARLY_PRINTK_INC
#endif
/*
* Print a character on the UART - this function is called by C
* x0: character to print
*/
GLOBAL(early_putch)
ldr x15, =EARLY_UART_VIRTUAL_ADDRESS
early_uart_ready x15, 1
early_uart_transmit x15, w0
ret
/* Flush the UART - this function is called by C */
GLOBAL(early_flush)
ldr x15, =EARLY_UART_VIRTUAL_ADDRESS /* x15 := VA UART base address */
early_uart_ready x15, 1
ret
/*
* Local variables:
* mode: ASM
* indent-tabs-mode: nil
* End:
*/
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