From b4b6116a13633898cf868f2f103c96a90c4c20f8 Mon Sep 17 00:00:00 2001
From: Anton Arapov <anton@redhat.com>
Date: Mon, 16 Apr 2012 10:05:28 +0200
Subject: fedora kernel: d9aad82f3319f3cfd1aebc01234254ef0c37ad84

Signed-off-by: Anton Arapov <anton@redhat.com>
---
 arch/arm/mach-omap1/reset.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 arch/arm/mach-omap1/reset.c

(limited to 'arch/arm/mach-omap1/reset.c')

diff --git a/arch/arm/mach-omap1/reset.c b/arch/arm/mach-omap1/reset.c
new file mode 100644
index 00000000000..91d199b6497
--- /dev/null
+++ b/arch/arm/mach-omap1/reset.c
@@ -0,0 +1,22 @@
+/*
+ * OMAP1 reset support
+ */
+#include <linux/kernel.h>
+#include <linux/io.h>
+
+#include <mach/hardware.h>
+#include <plat/prcm.h>
+
+void omap1_restart(char mode, const char *cmd)
+{
+	/*
+	 * Workaround for 5912/1611b bug mentioned in sprz209d.pdf p. 28
+	 * "Global Software Reset Affects Traffic Controller Frequency".
+	 */
+	if (cpu_is_omap5912()) {
+		omap_writew(omap_readw(DPLL_CTL) & ~(1 << 4), DPLL_CTL);
+		omap_writew(0x8, ARM_RSTCT1);
+	}
+
+	omap_writew(1, ARM_RSTCT1);
+}
-- 
cgit