/* SPDX-License-Identifier: GPL-2.0 */
/*
 * arch/arm/mach-sa1100/include/mach/uncompress.h
 *
 * (C) 1999 Nicolas Pitre <nico@fluxnic.net>
 *
 * Reorganised to be machine independent.
 */

#include "hardware.h"

#define IOMEM(x)        (x)

/*
 * The following code assumes the serial port has already been
 * initialized by the bootloader.  We search for the first enabled
 * port in the most probable order.  If you didn't setup a port in
 * your bootloader then nothing will appear (which might be desired).
 */

#define UART(x)         (*(volatile unsigned long *)(serial_port + (x)))

static inline void putc(int c)
{
        unsigned long serial_port;

        do {
                serial_port = _Ser3UTCR0;
                if (UART(UTCR3) & UTCR3_TXE) break;
                serial_port = _Ser1UTCR0;
                if (UART(UTCR3) & UTCR3_TXE) break;
                serial_port = _Ser2UTCR0;
                if (UART(UTCR3) & UTCR3_TXE) break;
                return;
        } while (0);

        /* wait for space in the UART's transmitter */
        while (!(UART(UTSR1) & UTSR1_TNF))
                barrier();

        /* send the character out. */
        UART(UTDR) = c;
}

static inline void flush(void)
{
}

/*
 * Nothing to do for these
 */
#define arch_decomp_setup()