From 2c04f3663422f56daf88b643e1a3eded854860d0 Mon Sep 17 00:00:00 2001 From: Michael Brandt Date: Thu, 25 Nov 2010 09:59:49 +0100 Subject: 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 Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/9399 Reviewed-by: Joakim AXELSSON Reviewed-by: Markus HELGESSON Reviewed-by: Robert ROSENGREN --- cpu/arm_cortexa9/stw8500/Makefile | 1 + cpu/arm_cortexa9/stw8500/clock.c | 56 +++++++++++++++++++++++++++++++++++++++ 2 files changed, 57 insertions(+) create mode 100755 cpu/arm_cortexa9/stw8500/clock.c (limited to 'cpu') 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 +#include +#include + +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); +} -- cgit v1.2.3