From 8a584c8a7f6f0198642c6f3d3a23a20f45ca0223 Mon Sep 17 00:00:00 2001 From: Siva Durga Prasad Paladugu Date: Tue, 8 Jul 2014 15:31:03 +0530 Subject: 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 Signed-off-by: Michal Simek Acked-by: Joe Hershberger --- drivers/net/zynq_gem.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'drivers/net/zynq_gem.c') diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c index c723dbb0a6..df8452acc5 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) -- cgit v1.2.3