ARM: S3C24XX: trim down debug uart handling

Using the lowlevel debug uart is a corner case - even more so in a
multiplatform environment. So it seems reasonable to simply let the
developer set the appropriate uart type for the debugged SoC.

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 1 insertions, 51 deletions

diff --git a/arch/arm/mach-s3c24xx/include/mach/debug-macro.S b/arch/arm/mach-s3c24xx/include/mach/debug-macro.S
index 2f39737544c0..fbe3e711ebab 100644
--- a/arch/arm/mach-s3c24xx/include/mach/debug-macro.S
+++ b/arch/arm/mach-s3c24xx/include/mach/debug-macro.S
@@ -13,11 +13,9 @@
 */
 
 #include <mach/map.h>
-#include <mach/regs-gpio.h>
 #include <linux/serial_s3c.h>
 
 #define S3C2410_UART1_OFF (0x4000)
-#define SHIFT_2440TXF (14-9)
 
         .macro addruart, rp, rv, tmp
                 ldr     \rp, = S3C24XX_PA_UART
@@ -28,56 +26,11 @@
 #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
@@ -88,12 +41,9 @@
  * used variants of these
 */
 
-#if defined(CONFIG_CPU_LLSERIAL_S3C2410_ONLY)
+#if defined(CONFIG_DEBUG_S3C2410_UART)
 #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 */