2 * include/asm-arm/arch-mxc/uncompress.h
6 * Copyright (C) 1999 ARM Limited
7 * Copyright (C) Shane Nay (shane@minirl.com)
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23 #ifndef __ASM_ARCH_MXC_UNCOMPRESS_H__
24 #define __ASM_ARCH_MXC_UNCOMPRESS_H__
26 #define __MXC_BOOT_UNCOMPRESS
28 #include <asm/hardware.h>
29 #include <asm/processor.h>
31 #define UART(x) (*(volatile unsigned long *)(serial_port + (x)))
34 #define USR2_TXFE (1<<14)
40 * The following code assumes the serial port has already been
41 * initialized by the bootloader. We search for the first enabled
42 * port in the most probable order. If you didn't setup a port in
43 * your bootloader then nothing will appear (which might be desired).
45 * This does not append a newline
48 static void putc(int ch
)
50 static unsigned long serial_port
= 0;
52 if (unlikely(serial_port
== 0)) {
54 serial_port
= UART1_BASE_ADDR
;
55 if (UART(UCR1
) & UCR1_UARTEN
)
57 serial_port
= UART2_BASE_ADDR
;
58 if (UART(UCR1
) & UCR1_UARTEN
)
64 while (!(UART(USR2
) & USR2_TXFE
))
70 #define flush() do { } while (0)
75 #define arch_decomp_setup()
77 #define arch_decomp_wdog()
79 #endif /* __ASM_ARCH_MXC_UNCOMPRESS_H__ */
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