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

[Liu Gang-B34182]

Hi, Andrew,

Thank you for applying the patch "[PATCH] rio: Use discovered bit to test if enumeration is complete "!

So far the following patch "[PATCH] fsl-rio: Correct IECSR register clear value " has no comment or response.

So could you please apply this patch into your tree?

Thanks a lot!

Regards,

Liu Gang
-----Original Message-----
From: Liu Gang-B34182 
Sent: Monday, August 08, 2011 6:14 PM
To: linuxppc-dev at ozlabs.org
Cc: akpm at linux-foundation.org; Li Yang-R58472; Gala Kumar-B11780; Zang Roy-R61911; Liu Gang-B34182; Liu Gang-B34182
Subject: [PATCH] fsl-rio: Correct IECSR register clear value

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

Signed-off-by: Liu Gang <Gang.Liu at freescale.com>
---
 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