From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- include/asm-arm/arch-s3c2410/debug-macro.S | 99 ++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 include/asm-arm/arch-s3c2410/debug-macro.S (limited to 'include/asm-arm/arch-s3c2410/debug-macro.S') diff --git a/include/asm-arm/arch-s3c2410/debug-macro.S b/include/asm-arm/arch-s3c2410/debug-macro.S new file mode 100644 index 0000000..abfbe45 --- /dev/null +++ b/include/asm-arm/arch-s3c2410/debug-macro.S @@ -0,0 +1,99 @@ +/* linux/include/asm-arm/arch-s3c2410/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. + * + * Modifications: + * 10-Mar-2005 LCVR Changed S3C2410_VA to S3C24XX_VA +*/ + +#include +#include +#include + +#define S3C2410_UART1_OFF (0x4000) +#define SHIFT_2440TXF (14-9) + + .macro addruart, rx + mrc p15, 0, \rx, c1, c0 + tst \rx, #1 + ldreq \rx, = S3C2410_PA_UART + ldrne \rx, = S3C24XX_VA_UART +#if CONFIG_DEBUG_S3C2410_UART != 0 + add \rx, \rx, #(S3C2410_UART1_OFF * CONFIG_DEBUG_S3C2410_UART) +#endif + .endm + + .macro senduart,rd,rx + str \rd, [\rx, # S3C2410_UTXH ] + .endm + + .macro busyuart, rd, rx + ldr \rd, [ \rx, # S3C2410_UFCON ] + tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled? + beq 1001f @ + @ FIFO enabled... +1003: + mrc p15, 0, \rd, c1, c0 + tst \rd, #1 + addeq \rd, \rx, #(S3C2410_PA_GPIO - S3C2410_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? + + ldr \rd, [ \rx, # S3C2410_UFSTAT ] + moveq \rd, \rd, lsr #SHIFT_2440TXF + tst \rd, #S3C2410_UFSTAT_TXFULL + bne 1003b + b 1002f + +1001: + @ busy waiting for non fifo + ldr \rd, [ \rx, # S3C2410_UTRSTAT ] + tst \rd, #S3C2410_UTRSTAT_TXFE + beq 1001b + +1002: @ exit busyuart + .endm + + .macro waituart,rd,rx + + ldr \rd, [ \rx, # S3C2410_UFCON ] + tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled? + beq 1001f @ + @ FIFO enabled... +1003: + mrc p15, 0, \rd, c1, c0 + tst \rd, #1 + addeq \rd, \rx, #(S3C2410_PA_GPIO - S3C2410_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? + + ldr \rd, [ \rx, # S3C2410_UFSTAT ] + andne \rd, \rd, #S3C2410_UFSTAT_TXMASK + andeq \rd, \rd, #S3C2440_UFSTAT_TXMASK + teq \rd, #0 + bne 1003b + b 1002f + +1001: + @ idle waiting for non fifo + ldr \rd, [ \rx, # S3C2410_UTRSTAT ] + tst \rd, #S3C2410_UTRSTAT_TXFE + beq 1001b + +1002: @ exit busyuart + .endm -- cgit v1.1