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-rw-r--r--arch/blackfin/include/asm/bfin_serial.h12
-rw-r--r--arch/blackfin/mach-bf609/include/mach/anomaly.h2
2 files changed, 14 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/bfin_serial.h b/arch/blackfin/include/asm/bfin_serial.h
index 235c72a1f92..8597158010b 100644
--- a/arch/blackfin/include/asm/bfin_serial.h
+++ b/arch/blackfin/include/asm/bfin_serial.h
@@ -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)
diff --git a/arch/blackfin/mach-bf609/include/mach/anomaly.h b/arch/blackfin/mach-bf609/include/mach/anomaly.h
index 97a9c65bbe3..bdd39aefb56 100644
--- a/arch/blackfin/mach-bf609/include/mach/anomaly.h
+++ b/arch/blackfin/mach-bf609/include/mach/anomaly.h
@@ -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)