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Commit 913f2f2d authored by Sonic Zhang's avatar Sonic Zhang Committed by Bob Liu
Browse files

blackfin: bf60x: anomaly: Add a temporary anomaly 0501001 



Add a temporary anomaly 0501001 for data loss in MMR reading if interrupted.
Add work around for bfin serial driver as well.

Signed-off-by: default avatarSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: default avatarBob Liu <lliubbo@gmail.com>
parent 8bf7135f

arch/blackfin/include/asm/bfin_serial.h

+12 −0
Original line number Diff line number Diff line
@@ -282,7 +282,19 @@ struct bfin_uart_regs { 
#define UART_GET_GCTL(p)      UART_GET_CTL(p)

#define UART_GET_LCR(p)       UART_GET_CTL(p)

#define UART_GET_MCR(p)       UART_GET_CTL(p)

#if ANOMALY_05001001

#define UART_GET_STAT(p) \

({ \

	u32 __ret; \

	unsigned long flags; \

	flags = hard_local_irq_save(); \

	__ret = bfin_read32(port_membase(p) + OFFSET_STAT); \

	hard_local_irq_restore(flags); \

	__ret; \

})

#else

#define UART_GET_STAT(p)      bfin_read32(port_membase(p) + OFFSET_STAT)

#endif

#define UART_GET_MSR(p)       UART_GET_STAT(p)



#define UART_PUT_CHAR(p, v)   bfin_write32(port_membase(p) + OFFSET_THR, v)

arch/blackfin/mach-bf609/include/mach/anomaly.h

+2 −0
Original line number Diff line number Diff line
@@ -57,6 +57,8 @@ 
#define ANOMALY_05000481 (1)

/* IFLUSH sucks at life */

#define ANOMALY_05000491 (1)

/* Tempopary anomaly ID for data loss in MMR read operation if interrupted */

#define ANOMALY_05001001 (__SILICON_REVISION__ < 1)



/* Anomalies that don't exist on this proc */

#define ANOMALY_05000099 (0)