commit 8a584c8a7f6f0198642c6f3d3a23a20f45ca0223
author Siva Durga Prasad Paladugu <siva.durga.paladugu@xilinx.com> Tue Jul 08 15:31:03 2014 +0530
committer Michal Simek <michal.simek@xilinx.com> Tue Jul 28 11:56:18 2015 +0200
tree 42374d34a179d4e19682499b9a540ac3a8b183f2
parent 26473945ad6667183296e7edee2a65edf31bb6f7

zynqmp: gem: Set data bus width to 64bit for arm64

Set the data bus width to 64-bit AMBA Databus width in config register.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

drivers/net/zynq_gem.c

diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index c723dbb..df8452a 100644
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -58,7 +58,14 @@
 #define ZYNQ_GEM_NWCFG_MDCCLKDIV	0x000080000 /* Div pclk by 32, 80MHz */
 #define ZYNQ_GEM_NWCFG_MDCCLKDIV2	0x0000c0000 /* Div pclk by 48, 120MHz */
 
-#define ZYNQ_GEM_NWCFG_INIT		(ZYNQ_GEM_NWCFG_FDEN | \
+#ifdef CONFIG_ARM64
+# define ZYNQ_GEM_DBUS_WIDTH	(1 << 21) /* 64 bit bus */
+#else
+# define ZYNQ_GEM_DBUS_WIDTH	(0 << 21) /* 32 bit bus */
+#endif
+
+#define ZYNQ_GEM_NWCFG_INIT		(ZYNQ_GEM_DBUS_WIDTH | \
+					ZYNQ_GEM_NWCFG_FDEN | \
 					ZYNQ_GEM_NWCFG_FSREM | \
 					ZYNQ_GEM_NWCFG_MDCCLKDIV)