MIPS: Replace SIBYTE_1956_WAR by CONFIG_SB1_PASS_2_WORKAROUNDS

SB1250 uart bug is related to PASS 2 workarounds. Use config
CONFIG_SB1_PASS_2_WORKAROUNDS directly and get rid of SIBYTE_1956_WAR.

Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

arch/mips/include/asm/mach-cavium-octeon/war.h

@@ -10,7 +10,6 @@
 #define __ASM_MIPS_MACH_CAVIUM_OCTEON_WAR_H
 
 #define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
 
 #define CAVIUM_OCTEON_DCACHE_PREFETCH_WAR	\
 	OCTEON_IS_MODEL(OCTEON_CN6XXX)

arch/mips/include/asm/mach-generic/war.h

@@ -9,6 +9,5 @@
 #define __ASM_MACH_GENERIC_WAR_H
 
 #define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
 
 #endif /* __ASM_MACH_GENERIC_WAR_H */

arch/mips/include/asm/mach-ip22/war.h

@@ -9,6 +9,5 @@
 #define __ASM_MIPS_MACH_IP22_WAR_H
 
 #define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
 
 #endif /* __ASM_MIPS_MACH_IP22_WAR_H */

arch/mips/include/asm/mach-ip27/war.h

@@ -9,6 +9,5 @@
 #define __ASM_MIPS_MACH_IP27_WAR_H
 
 #define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
 
 #endif /* __ASM_MIPS_MACH_IP27_WAR_H */

arch/mips/include/asm/mach-ip28/war.h

@@ -9,6 +9,5 @@
 #define __ASM_MIPS_MACH_IP28_WAR_H
 
 #define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
 
 #endif /* __ASM_MIPS_MACH_IP28_WAR_H */

arch/mips/include/asm/mach-ip30/war.h

@@ -6,6 +6,5 @@
 #define __ASM_MIPS_MACH_IP30_WAR_H
 
 #define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
 
 #endif /* __ASM_MIPS_MACH_IP30_WAR_H */

arch/mips/include/asm/mach-ip32/war.h

@@ -9,6 +9,5 @@
 #define __ASM_MIPS_MACH_IP32_WAR_H
 
 #define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
 
 #endif /* __ASM_MIPS_MACH_IP32_WAR_H */

arch/mips/include/asm/mach-malta/war.h

@@ -9,6 +9,5 @@
 #define __ASM_MIPS_MACH_MIPS_WAR_H
 
 #define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
 
 #endif /* __ASM_MIPS_MACH_MIPS_WAR_H */

arch/mips/include/asm/mach-rc32434/war.h

@@ -9,6 +9,5 @@
 #define __ASM_MIPS_MACH_MIPS_WAR_H
 
 #define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
 
 #endif /* __ASM_MIPS_MACH_MIPS_WAR_H */

arch/mips/include/asm/mach-rm/war.h

@@ -9,6 +9,5 @@
 #define __ASM_MIPS_MACH_RM_WAR_H
 
 #define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
 
 #endif /* __ASM_MIPS_MACH_RM_WAR_H */

arch/mips/include/asm/mach-sibyte/war.h

@@ -15,12 +15,10 @@ extern int sb1250_m3_workaround_needed(void);
 #endif
 
 #define BCM1250_M3_WAR	sb1250_m3_workaround_needed()
-#define SIBYTE_1956_WAR 1
 
 #else
 
 #define BCM1250_M3_WAR	0
-#define SIBYTE_1956_WAR 0
 
 #endif
 

arch/mips/include/asm/mach-tx49xx/war.h

@@ -9,6 +9,5 @@
 #define __ASM_MIPS_MACH_TX49XX_WAR_H
 
 #define BCM1250_M3_WAR			0
-#define SIBYTE_1956_WAR			0
 
 #endif /* __ASM_MIPS_MACH_TX49XX_WAR_H */

arch/mips/include/asm/war.h

@@ -86,11 +86,4 @@
 #error Check setting of BCM1250_M3_WAR for your platform
 #endif
 
-/*
- * This is a DUART workaround related to glitches around register accesses
- */
-#ifndef SIBYTE_1956_WAR
-#error Check setting of SIBYTE_1956_WAR for your platform
-#endif
-
 #endif /* _ASM_WAR_H */

drivers/tty/serial/sb1250-duart.c

@@ -35,7 +35,6 @@
 
 #include <linux/refcount.h>
 #include <asm/io.h>
-#include <asm/war.h>
 
 #include <asm/sibyte/sb1250.h>
 #include <asm/sibyte/sb1250_uart.h>
@@ -157,7 +156,7 @@ static unsigned char read_sbdchn(struct sbd_port *sport, int reg)
 	unsigned char retval;
 
 	retval = __read_sbdchn(sport, reg);
-	if (SIBYTE_1956_WAR)
+	if (IS_ENABLED(CONFIG_SB1_PASS_2_WORKAROUNDS))
 		__war_sbd1956(sport);
 	return retval;
 }
@@ -167,7 +166,7 @@ static unsigned char read_sbdshr(struct sbd_port *sport, int reg)
 	unsigned char retval;
 
 	retval = __read_sbdshr(sport, reg);
-	if (SIBYTE_1956_WAR)
+	if (IS_ENABLED(CONFIG_SB1_PASS_2_WORKAROUNDS))
 		__war_sbd1956(sport);
 	return retval;
 }
@@ -175,14 +174,14 @@ static unsigned char read_sbdshr(struct sbd_port *sport, int reg)
 static void write_sbdchn(struct sbd_port *sport, int reg, unsigned int value)
 {
 	__write_sbdchn(sport, reg, value);
-	if (SIBYTE_1956_WAR)
+	if (IS_ENABLED(CONFIG_SB1_PASS_2_WORKAROUNDS))
 		__war_sbd1956(sport);
 }
 
 static void write_sbdshr(struct sbd_port *sport, int reg, unsigned int value)
 {
 	__write_sbdshr(sport, reg, value);
-	if (SIBYTE_1956_WAR)
+	if (IS_ENABLED(CONFIG_SB1_PASS_2_WORKAROUNDS))
 		__war_sbd1956(sport);
 }