Thread (4 messages) flat view 4 messages, 2 authors, 2011-08-25
STALE5505d

[PATCH] fsl-rio: Correct IECSR register clear value

From: Liu Gang <hidden>
Date: 2011-08-08 10:12:54
Subsystem: linux for powerpc (32-bit and 64-bit), the rest · Maintainers: Madhavan Srinivasan, Linus Torvalds

The RETE bit in IECSR is cleared by writing a 1 to it.

Signed-off-by: Liu Gang <redacted>
---
 arch/powerpc/sysdev/fsl_rio.c |    5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/sysdev/fsl_rio.c b/arch/powerpc/sysdev/fsl_rio.c
index b3fd081..cdd765b 100644
--- a/arch/powerpc/sysdev/fsl_rio.c
+++ b/arch/powerpc/sysdev/fsl_rio.c
@@ -54,6 +54,7 @@
 #define ODSR_CLEAR		0x1c00
 #define LTLEECSR_ENABLE_ALL	0xFFC000FC
 #define ESCSR_CLEAR		0x07120204
+#define IECSR_CLEAR		0x80000000
 
 #define RIO_PORT1_EDCSR		0x0640
 #define RIO_PORT2_EDCSR		0x0680
@@ -1089,11 +1090,11 @@ static void port_error_handler(struct rio_mport *port, int offset)
 
 	if (offset == 0) {
 		out_be32((u32 *)(rio_regs_win + RIO_PORT1_EDCSR), 0);
-		out_be32((u32 *)(rio_regs_win + RIO_PORT1_IECSR), 0);
+		out_be32((u32 *)(rio_regs_win + RIO_PORT1_IECSR), IECSR_CLEAR);
 		out_be32((u32 *)(rio_regs_win + RIO_ESCSR), ESCSR_CLEAR);
 	} else {
 		out_be32((u32 *)(rio_regs_win + RIO_PORT2_EDCSR), 0);
-		out_be32((u32 *)(rio_regs_win + RIO_PORT2_IECSR), 0);
+		out_be32((u32 *)(rio_regs_win + RIO_PORT2_IECSR), IECSR_CLEAR);
 		out_be32((u32 *)(rio_regs_win + RIO_PORT2_ESCSR), ESCSR_CLEAR);
 	}
 }
-- 
1.7.3.1
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