From e2d4ea9444024e38217e4b7e380c6b9f39f9a5f2 Mon Sep 17 00:00:00 2001
From: Andrei Varvara <andrei.varvara@freescale.com>
Date: Tue, 28 May 2013 15:37:05 +0800
Subject: crypto: caam - fix SEQ IN PTR command when RTO or PRE bit is set

SEQ IN PTR command does not require pointer if RTO or PRE bit is set
Updated desc_constr.h accordingly.

Signed-off-by: Andrei Varvara <andrei.varvara@freescale.com>
Reviewed-by: Phillips Kim-R1AAHA <Kim.Phillips@freescale.com>
Reviewed-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/caam/desc.h b/drivers/crypto/caam/desc.h
index f7f833b..89fa3d0 100644
--- a/drivers/crypto/caam/desc.h
+++ b/drivers/crypto/caam/desc.h
@@ -1294,10 +1294,10 @@ struct sec4_sg_entry {
 #define SQOUT_SGF	0x01000000
 
 /* Appends to a previous pointer */
-#define SQOUT_PRE	0x00800000
+#define SQOUT_PRE	SQIN_PRE
 
 /* Restore sequence with pointer/length */
-#define SQOUT_RTO	0x00200000
+#define SQOUT_RTO	 SQIN_RTO
 
 /* Use extended length following pointer */
 #define SQOUT_EXT	0x00400000
diff --git a/drivers/crypto/caam/desc_constr.h b/drivers/crypto/caam/desc_constr.h
index c85c1f0..19501b5 100644
--- a/drivers/crypto/caam/desc_constr.h
+++ b/drivers/crypto/caam/desc_constr.h
@@ -122,7 +122,8 @@ static inline void append_cmd_ptr_extlen(u32 *desc, dma_addr_t ptr,
 					 unsigned int len, u32 command)
 {
 	append_cmd(desc, command);
-	append_ptr(desc, ptr);
+	if (!(command & (SQIN_RTO | SQIN_PRE)))
+		append_ptr(desc, ptr);
 	append_cmd(desc, len);
 }
 
@@ -186,7 +187,10 @@ static inline void append_seq_##cmd##_ptr_intlen(u32 *desc, dma_addr_t ptr, \
 						 u32 options) \
 { \
 	PRINT_POS; \
-	append_cmd_ptr(desc, ptr, len, CMD_SEQ_##op##_PTR | options); \
+	if (options & (SQIN_RTO | SQIN_PRE)) \
+		append_cmd(desc, CMD_SEQ_##op##_PTR | len | options); \
+	else \
+		append_cmd_ptr(desc, ptr, len, CMD_SEQ_##op##_PTR | options); \
 }
 APPEND_SEQ_PTR_INTLEN(in, IN)
 APPEND_SEQ_PTR_INTLEN(out, OUT)
-- 
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