diff options
author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-08-05 16:14:15 +0100 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-08-07 09:55:48 +0100 |
commit | a09e64fbc0094e3073dbb09c3b4bfe4ab669244b (patch) | |
tree | 69689f467179891b498bd7423fcf61925173db31 /arch/arm/plat-mxc/include/mach/uncompress.h | |
parent | a1b81a84fff05dbfef45b7012c26e1fee9973e5d (diff) |
[ARM] Move include/asm-arm/arch-* to arch/arm/*/include/mach
This just leaves include/asm-arm/plat-* to deal with.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/plat-mxc/include/mach/uncompress.h')
-rw-r--r-- | arch/arm/plat-mxc/include/mach/uncompress.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/include/mach/uncompress.h b/arch/arm/plat-mxc/include/mach/uncompress.h new file mode 100644 index 000000000000..de6fe0365982 --- /dev/null +++ b/arch/arm/plat-mxc/include/mach/uncompress.h @@ -0,0 +1,78 @@ +/* + * arch/arm/plat-mxc/include/mach/uncompress.h + * + * + * + * Copyright (C) 1999 ARM Limited + * Copyright (C) Shane Nay (shane@minirl.com) + * + * 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_MXC_UNCOMPRESS_H__ +#define __ASM_ARCH_MXC_UNCOMPRESS_H__ + +#define __MXC_BOOT_UNCOMPRESS + +#include <mach/hardware.h> + +#define UART(x) (*(volatile unsigned long *)(serial_port + (x))) + +#define USR2 0x98 +#define USR2_TXFE (1<<14) +#define TXR 0x40 +#define UCR1 0x80 +#define UCR1_UARTEN 1 + +/* + * 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). + * + * This does not append a newline + */ + +static void putc(int ch) +{ + static unsigned long serial_port = 0; + + if (unlikely(serial_port == 0)) { + do { + serial_port = UART1_BASE_ADDR; + if (UART(UCR1) & UCR1_UARTEN) + break; + serial_port = UART2_BASE_ADDR; + if (UART(UCR1) & UCR1_UARTEN) + break; + return; + } while (0); + } + + while (!(UART(USR2) & USR2_TXFE)) + barrier(); + + UART(TXR) = ch; +} + +#define flush() do { } while (0) + +/* + * nothing to do + */ +#define arch_decomp_setup() + +#define arch_decomp_wdog() + +#endif /* __ASM_ARCH_MXC_UNCOMPRESS_H__ */ |