From: Alessandro Rubini <rubini-list@gnudd.com>
Date: Sat, 6 Feb 2010 19:54:05 +0000 (+0100)
Subject: edb93xx: enable the uart in devicecfg register
X-Git-Tag: v2010.09-rc1~28^2~7^2~26^2
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=fba8bfd7a8ac1f16dbc603177115d37dbc9549a6;p=karo-tx-uboot.git

edb93xx: enable the uart in devicecfg register

printf goes to uart1, but it will block forever waiting for
busy to go off unless the uart is enabled first.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
---

diff --git a/board/edb93xx/edb93xx.c b/board/edb93xx/edb93xx.c
index 4df2246bd7..dde30ffdc2 100644
--- a/board/edb93xx/edb93xx.c
+++ b/board/edb93xx/edb93xx.c
@@ -64,6 +64,12 @@ int board_init(void)
 	value |= SYSCON_PWRCNT_UART_BAUD;
 	writel(value, &syscon->pwrcnt);
 
+	/* Enable the uart in devicecfg */
+	value = readl(&syscon->devicecfg);
+	value |= 1<<18 /* U1EN */;
+	writel(0xAA, &syscon->sysswlock);
+	writel(value, &syscon->devicecfg);
+
 	/* Machine number, as defined in linux/arch/arm/tools/mach-types */
 	gd->bd->bi_arch_number = CONFIG_MACH_TYPE;