uncompress.h

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/*
 *  Copyright (C) 2009 ST-Ericsson
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#ifndef __ASM_ARCH_UNCOMPRESS_H
#define __ASM_ARCH_UNCOMPRESS_H

#include <asm/setup.h>
#include <asm/mach-types.h>
#include <linux/io.h>
#include <linux/amba/serial.h>
#include <mach/hardware.h>

void __iomem *ux500_uart_base;

static void putc(const char c)
{
    /* Do nothing if the UART is not enabled. */
    if (!(__raw_readb(ux500_uart_base + UART011_CR) & 0x1))
        return;

    if (c == '\n')
        putc('\r');

    while (__raw_readb(ux500_uart_base + UART01x_FR) & (1 << 5))
        barrier();
    __raw_writeb(c, ux500_uart_base + UART01x_DR);
}

static void flush(void)
{
    if (!(__raw_readb(ux500_uart_base + UART011_CR) & 0x1))
        return;
    while (__raw_readb(ux500_uart_base + UART01x_FR) & (1 << 3))
        barrier();
}

static inline void arch_decomp_setup(void)
{
    /* Use machine_is_foo() macro if you need to switch base someday */
    ux500_uart_base = (void __iomem *)U8500_UART2_BASE;
}

#define arch_decomp_wdog() /* nothing to do here */

#endif /* __ASM_ARCH_UNCOMPRESS_H */