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linux
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: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bob Liu <lliubbo@gmail.com>
authored by
Sonic Zhang
and committed by
Bob Liu
913f2f2d
8bf7135f
+14
+12
arch/blackfin/include/asm/bfin_serial.h
+12
arch/blackfin/include/asm/bfin_serial.h
···
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#define UART_GET_GCTL(p) UART_GET_CTL(p)
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#define UART_GET_LCR(p) UART_GET_CTL(p)
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#define UART_GET_MCR(p) UART_GET_CTL(p)
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#if ANOMALY_05001001
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#define UART_GET_STAT(p) \
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({ \
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u32 __ret; \
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unsigned long flags; \
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flags = hard_local_irq_save(); \
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__ret = bfin_read32(port_membase(p) + OFFSET_STAT); \
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hard_local_irq_restore(flags); \
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__ret; \
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})
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#else
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#define UART_GET_STAT(p) bfin_read32(port_membase(p) + OFFSET_STAT)
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#endif
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#define UART_GET_MSR(p) UART_GET_STAT(p)
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#define UART_PUT_CHAR(p, v) bfin_write32(port_membase(p) + OFFSET_THR, v)
+2
arch/blackfin/mach-bf609/include/mach/anomaly.h
+2
arch/blackfin/mach-bf609/include/mach/anomaly.h
···
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#define ANOMALY_05000481 (1)
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/* IFLUSH sucks at life */
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#define ANOMALY_05000491 (1)
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/* Tempopary anomaly ID for data loss in MMR read operation if interrupted */
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#define ANOMALY_05001001 (__SILICON_REVISION__ < 1)
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/* Anomalies that don't exist on this proc */
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#define ANOMALY_05000099 (0)