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/*
* Copyright (C) 2013
* Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
*
* 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.
*
*/
#ifndef __MACH_DEBUG_LL_H__
#define __MACH_DEBUG_LL_H__
#include <io.h>
#define UART_BASE 0xf1012000
#define UARTn_BASE(n) (UART_BASE + ((n) * 0x100))
#define UART_THR 0x00
#define UART_LSR 0x14
#define LSR_THRE BIT(5)
#define EARLY_UART UARTn_BASE(CONFIG_MVEBU_CONSOLE_UART)
static inline void PUTC_LL(char c)
{
/* Wait until there is space in the FIFO */
while (!(readl(EARLY_UART + UART_LSR) & LSR_THRE))
;
/* Send the character */
writel(c, EARLY_UART + UART_THR);
/* Wait to make sure it hits the line */
while (!(readl(EARLY_UART + UART_LSR) & LSR_THRE))
;
}
#endif
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