030f4810e7
Resolve the circular dependency in the AT91 header files (io.h and hardware.h) by moving the at91_sys_read() and at91_sys_write() functions to io.h Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
57 lines
1.6 KiB
C
57 lines
1.6 KiB
C
/*
|
|
* include/asm-arm/arch-at91/uncompress.h
|
|
*
|
|
* Copyright (C) 2003 SAN People
|
|
*
|
|
* 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/io.h>
|
|
#include <asm/arch/at91_dbgu.h>
|
|
|
|
/*
|
|
* The following code assumes the serial port has already been
|
|
* initialized by the bootloader. If you didn't setup a port in
|
|
* your bootloader then nothing will appear (which might be desired).
|
|
*
|
|
* This does not append a newline
|
|
*/
|
|
static void putc(int c)
|
|
{
|
|
void __iomem *sys = (void __iomem *) AT91_BASE_SYS; /* physical address */
|
|
|
|
while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXRDY))
|
|
barrier();
|
|
__raw_writel(c, sys + AT91_DBGU_THR);
|
|
}
|
|
|
|
static inline void flush(void)
|
|
{
|
|
void __iomem *sys = (void __iomem *) AT91_BASE_SYS; /* physical address */
|
|
|
|
/* wait for transmission to complete */
|
|
while (!(__raw_readl(sys + AT91_DBGU_SR) & AT91_DBGU_TXEMPTY))
|
|
barrier();
|
|
}
|
|
|
|
#define arch_decomp_setup()
|
|
|
|
#define arch_decomp_wdog()
|
|
|
|
#endif
|