diff options
Diffstat (limited to 'include/asm-arm/arch-at91/uncompress.h')
-rw-r--r-- | include/asm-arm/arch-at91/uncompress.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/include/asm-arm/arch-at91/uncompress.h b/include/asm-arm/arch-at91/uncompress.h new file mode 100644 index 000000000000..a193d28304b6 --- /dev/null +++ b/include/asm-arm/arch-at91/uncompress.h @@ -0,0 +1,56 @@ +/* + * 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/hardware.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 |