diff mbox

[2/2] crypto: caam - enable LARGE_BURST for enhancing DMA transactions size

Message ID 1452611650-15803-3-git-send-email-horia.geanta@nxp.com (mailing list archive)
State Accepted
Delegated to: Herbert Xu
Headers show

Commit Message

Horia Geanta Jan. 12, 2016, 3:14 p.m. UTC
Increasing CAAM DMA engine transaction size either
-reduces the number of required transactions or
-adds the ability to transfer more data with same transaction count

Signed-off-by: Horia Geant? <horia.geanta@nxp.com>
---
 drivers/crypto/caam/ctrl.c | 2 +-
 drivers/crypto/caam/regs.h | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

Comments

Herbert Xu Jan. 25, 2016, 2:48 p.m. UTC | #1
On Tue, Jan 12, 2016 at 05:14:10PM +0200, Horia Geant? wrote:
> Increasing CAAM DMA engine transaction size either
> -reduces the number of required transactions or
> -adds the ability to transfer more data with same transaction count
> 
> Signed-off-by: Horia Geant? <horia.geanta@nxp.com>

Applied.
diff mbox

Patch

diff --git a/drivers/crypto/caam/ctrl.c b/drivers/crypto/caam/ctrl.c
index 69d4a1326fee..44d30b45f3cc 100644
--- a/drivers/crypto/caam/ctrl.c
+++ b/drivers/crypto/caam/ctrl.c
@@ -534,7 +534,7 @@  static int caam_probe(struct platform_device *pdev)
 	 * long pointers in master configuration register
 	 */
 	clrsetbits_32(&ctrl->mcr, MCFGR_AWCACHE_MASK, MCFGR_AWCACHE_CACH |
-		      MCFGR_AWCACHE_BUFF | MCFGR_WDENABLE |
+		      MCFGR_AWCACHE_BUFF | MCFGR_WDENABLE | MCFGR_LARGE_BURST |
 		      (sizeof(dma_addr_t) == sizeof(u64) ? MCFGR_LONG_PTR : 0));
 
 	/*
diff --git a/drivers/crypto/caam/regs.h b/drivers/crypto/caam/regs.h
index a8a79975682f..0ba9c40597dc 100644
--- a/drivers/crypto/caam/regs.h
+++ b/drivers/crypto/caam/regs.h
@@ -455,7 +455,8 @@  struct caam_ctrl {
 #define MCFGR_AXIPIPE_MASK	(0xf << MCFGR_AXIPIPE_SHIFT)
 
 #define MCFGR_AXIPRI		0x00000008 /* Assert AXI priority sideband */
-#define MCFGR_BURST_64		0x00000001 /* Max burst size */
+#define MCFGR_LARGE_BURST	0x00000004 /* 128/256-byte burst size */
+#define MCFGR_BURST_64		0x00000001 /* 64-byte burst size */
 
 /* JRSTART register offsets */
 #define JRSTART_JR0_START       0x00000001 /* Start Job ring 0 */