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/* 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()
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