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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-08-05 16:14:15 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-08-07 09:55:48 +0100
commita09e64fbc0094e3073dbb09c3b4bfe4ab669244b (patch)
tree69689f467179891b498bd7423fcf61925173db31 /arch/arm/mach-s3c2410/include/mach/debug-macro.S
parenta1b81a84fff05dbfef45b7012c26e1fee9973e5d (diff)
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[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/mach-s3c2410/include/mach/debug-macro.S')
-rw-r--r--arch/arm/mach-s3c2410/include/mach/debug-macro.S102
1 files changed, 102 insertions, 0 deletions
diff --git a/arch/arm/mach-s3c2410/include/mach/debug-macro.S b/arch/arm/mach-s3c2410/include/mach/debug-macro.S
new file mode 100644
index 000000000000..682df23087ab
--- /dev/null
+++ b/arch/arm/mach-s3c2410/include/mach/debug-macro.S
@@ -0,0 +1,102 @@
+/* arch/arm/mach-s3c2410/include/mach/debug-macro.S
+ *
+ * Debugging macro include header
+ *
+ * Copyright (C) 1994-1999 Russell King
+ * Copyright (C) 2005 Simtec Electronics
+ *
+ * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <mach/map.h>
+#include <mach/regs-gpio.h>
+#include <asm/plat-s3c/regs-serial.h>
+
+#define S3C2410_UART1_OFF (0x4000)
+#define SHIFT_2440TXF (14-9)
+
+ .macro addruart, rx
+ mrc p15, 0, \rx, c1, c0
+ tst \rx, #1
+ ldreq \rx, = S3C24XX_PA_UART
+ ldrne \rx, = S3C24XX_VA_UART
+#if CONFIG_DEBUG_S3C_UART != 0
+ add \rx, \rx, #(S3C2410_UART1_OFF * CONFIG_DEBUG_S3C_UART)
+#endif
+ .endm
+
+ .macro fifo_full_s3c24xx rd, rx
+ @ check for arm920 vs arm926. currently assume all arm926
+ @ devices have an 64 byte FIFO identical to the s3c2440
+ mrc p15, 0, \rd, c0, c0
+ and \rd, \rd, #0xff0
+ teq \rd, #0x260
+ beq 1004f
+ mrc p15, 0, \rd, c1, c0
+ tst \rd, #1
+ addeq \rd, \rx, #(S3C24XX_PA_GPIO - S3C24XX_PA_UART)
+ addne \rd, \rx, #(S3C24XX_VA_GPIO - S3C24XX_VA_UART)
+ bic \rd, \rd, #0xff000
+ ldr \rd, [ \rd, # S3C2410_GSTATUS1 - S3C2410_GPIOREG(0) ]
+ and \rd, \rd, #0x00ff0000
+ teq \rd, #0x00440000 @ is it 2440?
+1004:
+ ldr \rd, [ \rx, # S3C2410_UFSTAT ]
+ moveq \rd, \rd, lsr #SHIFT_2440TXF
+ tst \rd, #S3C2410_UFSTAT_TXFULL
+ .endm
+
+ .macro fifo_full_s3c2410 rd, rx
+ ldr \rd, [ \rx, # S3C2410_UFSTAT ]
+ tst \rd, #S3C2410_UFSTAT_TXFULL
+ .endm
+
+/* fifo level reading */
+
+ .macro fifo_level_s3c24xx rd, rx
+ @ check for arm920 vs arm926. currently assume all arm926
+ @ devices have an 64 byte FIFO identical to the s3c2440
+ mrc p15, 0, \rd, c0, c0
+ and \rd, \rd, #0xff0
+ teq \rd, #0x260
+ beq 10000f
+ mrc p15, 0, \rd, c1, c0
+ tst \rd, #1
+ addeq \rd, \rx, #(S3C24XX_PA_GPIO - S3C24XX_PA_UART)
+ addne \rd, \rx, #(S3C24XX_VA_GPIO - S3C24XX_VA_UART)
+ bic \rd, \rd, #0xff000
+ ldr \rd, [ \rd, # S3C2410_GSTATUS1 - S3C2410_GPIOREG(0) ]
+ and \rd, \rd, #0x00ff0000
+ teq \rd, #0x00440000 @ is it 2440?
+
+10000:
+ ldr \rd, [ \rx, # S3C2410_UFSTAT ]
+ andne \rd, \rd, #S3C2410_UFSTAT_TXMASK
+ andeq \rd, \rd, #S3C2440_UFSTAT_TXMASK
+ .endm
+
+ .macro fifo_level_s3c2410 rd, rx
+ ldr \rd, [ \rx, # S3C2410_UFSTAT ]
+ and \rd, \rd, #S3C2410_UFSTAT_TXMASK
+ .endm
+
+/* Select the correct implementation depending on the configuration. The
+ * S3C2440 will get selected by default, as these are the most widely
+ * used variants of these
+*/
+
+#if defined(CONFIG_CPU_LLSERIAL_S3C2410_ONLY)
+#define fifo_full fifo_full_s3c2410
+#define fifo_level fifo_level_s3c2410
+#elif !defined(CONFIG_CPU_LLSERIAL_S3C2440_ONLY)
+#define fifo_full fifo_full_s3c24xx
+#define fifo_level fifo_level_s3c24xx
+#endif
+
+/* include the reset of the code which will do the work */
+
+#include <asm/plat-s3c/debug-macro.S>