diff options
Diffstat (limited to 'include/asm-arm')
| -rw-r--r-- | include/asm-arm/arch-s3c2410/debug-macro.S | 52 | ||||
| -rw-r--r-- | include/asm-arm/plat-s3c/debug-macro.S | 57 |
2 files changed, 66 insertions, 43 deletions
diff --git a/include/asm-arm/arch-s3c2410/debug-macro.S b/include/asm-arm/arch-s3c2410/debug-macro.S index 90dfba45a29..b0a44178b14 100644 --- a/include/asm-arm/arch-s3c2410/debug-macro.S +++ b/include/asm-arm/arch-s3c2410/debug-macro.S @@ -13,13 +13,15 @@ */ #include <asm/arch/map.h> -#include <asm/plat-s3c/regs-serial.h> #include <asm/arch/regs-gpio.h> +#include <asm/plat-s3c/regs-serial.h> +#include <asm/plat-s3c/debug-macro.S> + #define S3C2410_UART1_OFF (0x4000) #define SHIFT_2440TXF (14-9) - .macro addruart, rx + .macro addruart, rx mrc p15, 0, \rx, c1, c0 tst \rx, #1 ldreq \rx, = S3C24XX_PA_UART @@ -27,18 +29,9 @@ #if CONFIG_DEBUG_S3C2410_UART != 0 add \rx, \rx, #(S3C2410_UART1_OFF * CONFIG_DEBUG_S3C2410_UART) #endif - .endm + .endm - .macro senduart,rd,rx - strb \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: + .macro fifo_full 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 @@ -57,25 +50,9 @@ 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 + .endm -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: + .macro fifo_level rd, rx mrc p15, 0, \rd, c1, c0 tst \rd, #1 addeq \rd, \rx, #(S3C24XX_PA_GPIO - S3C24XX_PA_UART) @@ -88,15 +65,4 @@ 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 + .endm diff --git a/include/asm-arm/plat-s3c/debug-macro.S b/include/asm-arm/plat-s3c/debug-macro.S new file mode 100644 index 00000000000..a43bbfa90a0 --- /dev/null +++ b/include/asm-arm/plat-s3c/debug-macro.S @@ -0,0 +1,57 @@ +/* linux/include/asm-arm/plat-s3c/debug-macro.S + * + * Copyright 2005, 2007 Simtec Electronics + * http://armlinux.simtec.co.uk/ + * Ben Dooks <ben@simtec.co.uk> + * + * 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 <asm/plat-s3c/regs-serial.h> + +#define S3C2410_UART1_OFF (0x4000) + + .macro senduart,rd,rx + strb \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: + fifo_full \rd, \rx + 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: + fifo_level \rd, \rx + 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 |