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From: Matthias Kaehlcke <matthias@kaehlcke.net>
To: barebox@lists.infradead.org
Subject: [PATCH] edb93xx: Enable UART1
Date: Sun, 7 Feb 2010 00:54:56 +0100	[thread overview]
Message-ID: <20100206235456.GD15617@darwin> (raw)
In-Reply-To: <d5ecf68c69351ddcef35759f76e7e8ce3d7e0571.1265500315.git.matthias@kaehlcke.net>

edb93xx: according to the datasheet UART1 needs to be enabled explicitly

Signed-off-by: Matthias Kaehlcke <matthias@kaehlcke.net>
---
 board/edb93xx/edb93xx.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/board/edb93xx/edb93xx.c b/board/edb93xx/edb93xx.c
index add88e1..6316988 100644
--- a/board/edb93xx/edb93xx.c
+++ b/board/edb93xx/edb93xx.c
@@ -32,6 +32,8 @@
 #include <mach/ep93xx-regs.h>
 #include "edb93xx.h"
 
+#define DEVCFG_U1EN (1 << 18)
+
 /*
  * Up to 32MiB NOR type flash, connected to
  * CS line 6, data width is 16 bit
@@ -164,6 +166,12 @@ static int edb93xx_console_init(void)
 	value |= SYSCON_PWRCNT_UART_BAUD;
 	writel(value, &syscon->pwrcnt);
 
+	/* Enable UART1 */
+	value = readl(&syscon->devicecfg);
+	value |= DEVCFG_U1EN;
+	writel(0xAA, &syscon->sysswlock);
+	writel(value, &syscon->devicecfg);
+
 	register_device(&edb93xx_serial_device);
 
 	return 0;
-- 
1.6.5


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       reply	other threads:[~2010-02-06 23:55 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <d5ecf68c69351ddcef35759f76e7e8ce3d7e0571.1265500315.git.matthias@kaehlcke.net>
2010-02-06 23:54 ` Matthias Kaehlcke [this message]
2010-02-06 23:55 ` [PATCH] edb93xx: Avoid stack usage in early_udelay() Matthias Kaehlcke

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