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author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-22 11:22:59 -0700 |
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committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-22 11:22:59 -0700 |
commit | 7578634990fb47cc30083fbd812689aa6deacfc0 (patch) | |
tree | f493860658579d9572a19b3a41fcea2de035e49f /include/asm-arm/arch-mxc/uncompress.h | |
parent | d7f5e3df3574c6e38b99f5fe22f15540b2b9811d (diff) | |
parent | 5957a4eb284dd6f522b248b674792416466555b2 (diff) |
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (60 commits)
[ARM] 4524/1: S3C: Move register out of include/asm-arm/arch-s3c2410
[ARM] 4523/1: S3C: Remove FIFO_MAX from uncompression headers
[ARM] 4522/1: S3C: split include/asm-arm/arch/memory.h
[ARM] 4521/2: S3C: Reorganise VA mapping headers
[ARM] 4520/1: S3C: Remove old VA values from static map
[ARM] 4519/1: S3C: split S3C2400 values out of S3C24XX map.h
[ARM] 4518/1: S3C: Rename watchdog configuration options
[ARM] 4517/1: S3C: Fix debug macros for ARM926 output
[ARM] 4516/1: S3C: Fix uncompressor serial output for ARM926
[ARM] 4515/1: S3C: Move uncompress code to plat-s3c
[ARM] 4514/1: S3C: Rename DEBUG_S3C2410_PORT and DEBUG_S3C_UART
[ARM] 4513/1: S3C: Rename CONFIG_S3C2410_LOWLEVEL_UART_PORT
[ARM] 4512/1: S3C: rename the debug macros for per-cpu updates
[ARM] 4511/1: S3C: updated LLSERIAL Kconfig defines for CPU support
[ARM] 4510/1: S3C: split debug-macro support into plat-s3c
[ARM] 4509/1: S3C: Create initial arch/arm/plat-s3c
[ARM] 4508/1: S3C: Move items to include/asm-arm/plat-s3c
[ARM] 4461/1: MXC platform and i.MX31ADS core support
[ARM] 4507/1: pxa2xx clock_event_device
[ARM] 4497/1: Only allow safe cache configurations on ARMv6 and later
...
Diffstat (limited to 'include/asm-arm/arch-mxc/uncompress.h')
-rw-r--r-- | include/asm-arm/arch-mxc/uncompress.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/include/asm-arm/arch-mxc/uncompress.h b/include/asm-arm/arch-mxc/uncompress.h new file mode 100644 index 00000000000..ec5787d0e78 --- /dev/null +++ b/include/asm-arm/arch-mxc/uncompress.h @@ -0,0 +1,79 @@ +/* + * include/asm-arm/arch-mxc/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 <asm/hardware.h> +#include <asm/processor.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)) + cpu_relax(); + + 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__ */ |