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/mach-s3c2410/include/mach/debug-macro.S | |
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/mach-s3c2410/include/mach/debug-macro.S')
-rw-r--r-- | arch/arm/mach-s3c2410/include/mach/debug-macro.S | 102 |
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> |