diff options
author | Sonic Zhang <sonic.zhang@analog.com> | 2012-05-15 02:17:35 -0400 |
---|---|---|
committer | Bob Liu <lliubbo@gmail.com> | 2012-05-21 02:54:58 -0400 |
commit | 913f2f2df797c45e92ab527022cd49deb6eee3ab (patch) | |
tree | ecdc3b59ec9aec482792d8e77179702b7c77c23a /arch/blackfin/include/asm | |
parent | 8bf7135fff46f6ac28baf28a8e4144f685b456a0 (diff) |
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/asm')
-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 235c72a1f92d..8597158010b5 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 { | |||
282 | #define UART_GET_GCTL(p) UART_GET_CTL(p) | 282 | #define UART_GET_GCTL(p) UART_GET_CTL(p) |
283 | #define UART_GET_LCR(p) UART_GET_CTL(p) | 283 | #define UART_GET_LCR(p) UART_GET_CTL(p) |
284 | #define UART_GET_MCR(p) UART_GET_CTL(p) | 284 | #define UART_GET_MCR(p) UART_GET_CTL(p) |
285 | #if ANOMALY_05001001 | ||
286 | #define UART_GET_STAT(p) \ | ||
287 | ({ \ | ||
288 | u32 __ret; \ | ||
289 | unsigned long flags; \ | ||
290 | flags = hard_local_irq_save(); \ | ||
291 | __ret = bfin_read32(port_membase(p) + OFFSET_STAT); \ | ||
292 | hard_local_irq_restore(flags); \ | ||
293 | __ret; \ | ||
294 | }) | ||
295 | #else | ||
285 | #define UART_GET_STAT(p) bfin_read32(port_membase(p) + OFFSET_STAT) | 296 | #define UART_GET_STAT(p) bfin_read32(port_membase(p) + OFFSET_STAT) |
297 | #endif | ||
286 | #define UART_GET_MSR(p) UART_GET_STAT(p) | 298 | #define UART_GET_MSR(p) UART_GET_STAT(p) |
287 | 299 | ||
288 | #define UART_PUT_CHAR(p, v) bfin_write32(port_membase(p) + OFFSET_THR, v) | 300 | #define UART_PUT_CHAR(p, v) bfin_write32(port_membase(p) + OFFSET_THR, v) |