From e37e7d908112463e6153f82ff0c15aec229a8f81 Mon Sep 17 00:00:00 2001
From: David Given <dg@cowlark.com>
Date: Wed, 24 Jun 2015 22:40:41 +0200
Subject: [PATCH] The SD card is much happier run at full speed.

---
 Kernel/platform-msp430fr5969/devsdspi.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Kernel/platform-msp430fr5969/devsdspi.c b/Kernel/platform-msp430fr5969/devsdspi.c
index 74fa8efd..82e53f1c 100644
--- a/Kernel/platform-msp430fr5969/devsdspi.c
+++ b/Kernel/platform-msp430fr5969/devsdspi.c
@@ -66,6 +66,9 @@ void sd_rawinit(void)
 
 void sd_spi_clock(bool go_fast)
 {
+	UCB0CTLW0 |= UCSWRST;
+	UCB0BRW = go_fast ? 0 : 20;
+	UCB0CTLW0 &= ~UCSWRST;
 }
 
 void sd_spi_raise_cs(void)
-- 
2.34.1