661f10f6b6
Don't use writeb() in uncompress.h, to avoid the following build errors when the "Add barriers to the I/O accessors" series is applied. Use __raw_writeb() instead. arch/arm/boot/compressed/misc.o: In function `putc': arch/arm/mach-ux500/include/mach/uncompress.h:41: undefined reference to `outer_cache' Acked-by: Linus Walleij <linus.walleij@stericsson.com> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/*
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* Copyright (C) 2009 ST-Ericsson
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __ASM_ARCH_UNCOMPRESS_H
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#define __ASM_ARCH_UNCOMPRESS_H
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#include <asm/setup.h>
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#include <linux/io.h>
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#include <mach/hardware.h>
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#define U8500_UART_DR 0x80007000
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#define U8500_UART_LCRH 0x8000702c
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#define U8500_UART_CR 0x80007030
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#define U8500_UART_FR 0x80007018
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static void putc(const char c)
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{
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/* Do nothing if the UART is not enabled. */
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if (!(__raw_readb(U8500_UART_CR) & 0x1))
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return;
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if (c == '\n')
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putc('\r');
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while (__raw_readb(U8500_UART_FR) & (1 << 5))
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barrier();
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__raw_writeb(c, U8500_UART_DR);
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}
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static void flush(void)
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{
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if (!(__raw_readb(U8500_UART_CR) & 0x1))
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return;
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while (__raw_readb(U8500_UART_FR) & (1 << 3))
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barrier();
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}
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static inline void arch_decomp_setup(void)
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{
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}
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#define arch_decomp_wdog() /* nothing to do here */
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#endif /* __ASM_ARCH_UNCOMPRESS_H */
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