diff options
| -rw-r--r-- | include/asm-arm/arch-s3c2410/debug-macro.S | 37 | ||||
| -rw-r--r-- | include/asm-arm/plat-s3c/debug-macro.S | 22 |
2 files changed, 53 insertions, 6 deletions
diff --git a/include/asm-arm/arch-s3c2410/debug-macro.S b/include/asm-arm/arch-s3c2410/debug-macro.S index b0a4417..6fcef33 100644 --- a/include/asm-arm/arch-s3c2410/debug-macro.S +++ b/include/asm-arm/arch-s3c2410/debug-macro.S @@ -14,9 +14,7 @@ #include <asm/arch/map.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) @@ -31,7 +29,7 @@ #endif .endm - .macro fifo_full rd, rx + .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 @@ -52,7 +50,14 @@ tst \rd, #S3C2410_UFSTAT_TXFULL .endm - .macro fifo_level rd, rx + .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 mrc p15, 0, \rd, c1, c0 tst \rd, #1 addeq \rd, \rx, #(S3C24XX_PA_GPIO - S3C24XX_PA_UART) @@ -66,3 +71,27 @@ 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 +#warning 2410only +#elif !defined(CONFIG_CPU_LLSERIAL_S3C2440_ONLY) +#define fifo_full fifo_full_s3c24xx +#define fifo_level fifo_level_s3c24xx +#warning generic +#endif + +/* include the reset of the code which will do the work */ + +#include <asm/plat-s3c/debug-macro.S> diff --git a/include/asm-arm/plat-s3c/debug-macro.S b/include/asm-arm/plat-s3c/debug-macro.S index a43bbfa..84c40b8 100644 --- a/include/asm-arm/plat-s3c/debug-macro.S +++ b/include/asm-arm/plat-s3c/debug-macro.S @@ -11,7 +11,26 @@ #include <asm/plat-s3c/regs-serial.h> -#define S3C2410_UART1_OFF (0x4000) +/* The S3C2440 implementations are used by default as they are the + * most widely re-used */ + + .macro fifo_level_s3c2440 rd, rx + ldr \rd, [ \rx, # S3C2410_UFSTAT ] + and \rd, \rd, #S3C2440_UFSTAT_TXMASK + .endm + +#ifndef fifo_level +#define fifo_level fifo_level_s3c2410 +#endif + + .macro fifo_full_s3c2440 rd, rx + ldr \rd, [ \rx, # S3C2410_UFSTAT ] + tst \rd, #S3C2440_UFSTAT_TXFULL + .endm + +#ifndef fifo_full +#define fifo_full fifo_full_s3c2440 +#endif .macro senduart,rd,rx strb \rd, [\rx, # S3C2410_UTXH ] @@ -37,7 +56,6 @@ .endm .macro waituart,rd,rx - ldr \rd, [ \rx, # S3C2410_UFCON ] tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled? beq 1001f @ |
