From 7a0bc4cb9c943ebfe4e72e3a2065d8b58d5f2e71 Mon Sep 17 00:00:00 2001
From: Werner Almesberger <werner@almesberger.net>
Date: Thu, 21 Jun 2012 12:03:32 -0300
Subject: [PATCH] fw/spi.c: clean up code and add option for running at fosc/2
 instead of fosc/4

Not enabled yet. There's a RF comm regression elsewhere that needs fixing
first.
---
 fw/spi.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/fw/spi.c b/fw/spi.c
index 97f0321..0337caf 100644
--- a/fw/spi.c
+++ b/fw/spi.c
@@ -26,8 +26,11 @@
 
 void spi_init(void)
 {
-	/* Enable, SPI mode 0, master, MSB first, fosc/4 */
-	SPCR = (1 << SPE) | (1 << MSTR);
+	/* SPI mode 0, MSB first, fosc/4 */
+	SPCR =
+	    1 << SPE |	/* enable SPI */
+	    1 << MSTR;	/* master */
+//	SPSR = 1 << SPI2X; /* enable for fosc/2 */
 }