From patchwork Thu May 28 07:00:45 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Simek X-Patchwork-Id: 478596 X-Patchwork-Delegate: monstr@monstr.eu From: michal.simek at xilinx.com (Michal Simek) Date: Thu, 28 May 2015 09:00:45 +0200 Subject: [U-Boot] [PATCH v2 1/4] zynqmp: gem: Set data bus width to 64bit for arm64 Message-ID: List-Id: U-Boot discussion From: Siva Durga Prasad Paladugu 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 --- Changes in v2: - Select 64bit setup based on CONFIG_ARM64 not on CONFIG_TARGET_XILINX_ZYNQMP - Fix type in the subject drivers/net/zynq_gem.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c index c723dbb0a694..df8452acc5be 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)