From mboxrd@z Thu Jan 1 00:00:00 1970 From: Alan Ott Subject: [PATCH 3/4] mrf24j40: Increase max SPI speed to 10MHz Date: Mon, 18 Mar 2013 18:06:42 -0400 Message-ID: <1363644403-11003-4-git-send-email-alan@signal11.us> References: <1363644403-11003-1-git-send-email-alan@signal11.us> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Alan Ott To: linux-zigbee-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org, netdev-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Return-path: In-Reply-To: <1363644403-11003-1-git-send-email-alan-yzvJWuRpmD1zbRFIqnYvSA@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-zigbee-devel-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: netdev.vger.kernel.org Upon consulting the datasheet further, it does indicates a maximum speed for SCK at 10MHz. Signed-off-by: Alan Ott --- drivers/net/ieee802154/mrf24j40.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/ieee802154/mrf24j40.c b/drivers/net/ieee802154/mrf24j40.c index 582c0a3..b4f9b67 100644 --- a/drivers/net/ieee802154/mrf24j40.c +++ b/drivers/net/ieee802154/mrf24j40.c @@ -92,9 +92,8 @@ struct mrf24j40 { #define MRF24J40_READLONG(reg) (1 << 15 | (reg) << 5) #define MRF24J40_WRITELONG(reg) (1 << 15 | (reg) << 5 | 1 << 4) -/* Maximum speed to run the device at. TODO: Get the real max value from - * someone at Microchip since it isn't in the datasheet. */ -#define MAX_SPI_SPEED_HZ 1000000 +/* The datasheet indicates the theoretical maximum for SCK to be 10MHz */ +#define MAX_SPI_SPEED_HZ 10000000 #define printdev(X) (&X->spi->dev) -- 1.7.11.2 ------------------------------------------------------------------------------ Everyone hates slow websites. So do we. Make your web apps faster with AppDynamics Download AppDynamics Lite for free today: http://p.sf.net/sfu/appdyn_d2d_mar