U8500: Move clock.c into SoC directory

clock.c is SoC specific, not board specific.
Other db8500 based boards need it as well, therefore move it into
the SoC directory.

Change-Id: Ib23d44988628e8bb6a8cb89c56941cf2a815892d
Signed-off-by: Michael Brandt <michael.brandt@stericsson.com>
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/9399
Reviewed-by: Joakim AXELSSON <joakim.axelsson@stericsson.com>
Reviewed-by: Markus HELGESSON <markus.helgesson@stericsson.com>
Reviewed-by: Robert ROSENGREN <robert.rosengren@stericsson.com>

2 files changed, 57 insertions, 0 deletions

diff --git a/cpu/arm_cortexa9/stw8500/Makefile b/cpu/arm_cortexa9/stw8500/Makefile
index a8367ec61..180da3026 100755
--- a/cpu/arm_cortexa9/stw8500/Makefile
+++ b/cpu/arm_cortexa9/stw8500/Makefile
@@ -26,6 +26,7 @@ include $(TOPDIR)/config.mk
 LIB	= $(obj)lib$(SOC).a
 
 COBJS	= timer.o interrupts.o
+COBJS	+= clock.o
 COBJS	+= prcmu.o
 
 SRCS	:= $(START:.o=.S) $(COBJS:.o=.c)
diff --git a/cpu/arm_cortexa9/stw8500/clock.c b/cpu/arm_cortexa9/stw8500/clock.c
new file mode 100755
index 000000000..41f1bb254
--- /dev/null
+++ b/cpu/arm_cortexa9/stw8500/clock.c
@@ -0,0 +1,56 @@
+/*
+ * (C) Copyright 2009 ST-Ericsson
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/hardware.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+struct clkrst {
+	unsigned int pcken;
+	unsigned int pckdis;
+	unsigned int kcken;
+	unsigned int kckdis;
+};
+
+static unsigned int clkrst_base[] = {
+	U8500_CLKRST1_BASE,
+	U8500_CLKRST2_BASE,
+	U8500_CLKRST3_BASE,
+	NULL,
+	U8500_CLKRST5_BASE,
+	U8500_CLKRST6_BASE,
+	U8500_CLKRST7_BASE,	/* ED only */
+};
+
+/* Turn on peripheral clock at PRCC level */
+void u8500_clock_enable(int periph, int cluster, int kern)
+{
+	struct clkrst *clkrst = (struct clkrst *) clkrst_base[periph - 1];
+
+	if (kern != -1)
+		writel(1 << kern, &clkrst->kcken);
+
+	if (cluster != -1)
+		writel(1 << cluster, &clkrst->pcken);
+}