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author | Sonic Zhang <sonic.zhang@analog.com> | 2012-05-15 14:17:35 +0800 |
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committer | Bob Liu <lliubbo@gmail.com> | 2012-05-21 14:54:58 +0800 |
commit | 913f2f2df797c45e92ab527022cd49deb6eee3ab (patch) | |
tree | ecdc3b59ec9aec482792d8e77179702b7c77c23a /arch/blackfin/include | |
parent | 8bf7135fff46f6ac28baf28a8e4144f685b456a0 (diff) | |
download | op-kernel-dev-913f2f2df797c45e92ab527022cd49deb6eee3ab.zip op-kernel-dev-913f2f2df797c45e92ab527022cd49deb6eee3ab.tar.gz |
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>
Diffstat (limited to 'arch/blackfin/include')
-rw-r--r-- | arch/blackfin/include/asm/bfin_serial.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/bfin_serial.h b/arch/blackfin/include/asm/bfin_serial.h index 235c72a..8597158 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) |