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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-22 11:22:59 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-22 11:22:59 -0700
commit7578634990fb47cc30083fbd812689aa6deacfc0 (patch)
treef493860658579d9572a19b3a41fcea2de035e49f /include/asm-arm/arch-mxc/uncompress.h
parentd7f5e3df3574c6e38b99f5fe22f15540b2b9811d (diff)
parent5957a4eb284dd6f522b248b674792416466555b2 (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.h79
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__ */