ftpmu010: support faraday ftpmu010 driver

Faraday's ftpmu010 is a power managemnet unit which support cpu
sleep and frequency scaling. It has been integrated into many SoC.

This patch also move ftpmu010 to a proper place for later enhancement.

Signed-off-by: Macpaul Lin <macpaul@andestech.com>

diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index c9ba1aef86c9578a80946697baf0181e26c3d8eb..ead00f8dae6a3b0ac9fdbf2efc938faf1d0ac2b0 100644 (file)
--- a/drivers/power/Makefile
+++ b/drivers/power/Makefile
@@ -25,6 +25,7 @@ include $(TOPDIR)/config.mk
 
 LIB    := $(obj)libpower.o
 
+COBJS-$(CONFIG_FTPMU010_POWER) += ftpmu010.o
 COBJS-$(CONFIG_TWL4030_POWER)  += twl4030.o
 COBJS-$(CONFIG_TWL6030_POWER)  += twl6030.o
 

diff --git a/drivers/power/ftpmu010.c b/drivers/power/ftpmu010.c
new file mode 100644 (file)
index 0000000..7924ac1
--- /dev/null
+++ b/drivers/power/ftpmu010.c
@@ -0,0 +1,65 @@
+/*
+ * (C) Copyright 2009 Faraday Technology
+ * Po-Yu Chuang <ratbert@faraday-tech.com>
+ *
+ * Copyright (C) 2010 Andes Technology Corporation
+ * Shawn Lin, Andes Technology Corporation <nobuhiro@andestech.com>
+ * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com>
+ *
+ * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include "ftpmu010.h"
+
+static struct ftpmu010 *pmu = (struct ftpmu010 *)CONFIG_FTPMU010_BASE;
+
+void ftpmu010_32768osc_enable(void)
+{
+       unsigned int oscc;
+
+       /* enable the 32768Hz oscillator */
+       oscc = readl(&pmu->OSCC);
+       oscc &= ~(FTPMU010_OSCC_OSCL_OFF | FTPMU010_OSCC_OSCL_TRI);
+       writel(oscc, &pmu->OSCC);
+
+       /* wait until ready */
+       while (!(readl(&pmu->OSCC) & FTPMU010_OSCC_OSCL_STABLE))
+               ;
+
+       /* select 32768Hz oscillator */
+       oscc = readl(&pmu->OSCC);
+       oscc |= FTPMU010_OSCC_OSCL_RTCLSEL;
+       writel(oscc, &pmu->OSCC);
+}
+
+void ftpmu010_dlldis_disable(void)
+{
+       unsigned int pdllcr0;
+
+       pdllcr0 = readl(&pmu->PDLLCR0);
+       pdllcr0 |= FTPMU010_PDLLCR0_DLLDIS;
+       writel(pdllcr0, &pmu->PDLLCR0);
+}
+
+void ftpmu010_sdram_clk_disable(unsigned int cr0)
+{
+       unsigned int pdllcr0;
+
+       pdllcr0 = readl(&pmu->PDLLCR0);
+       pdllcr0 |= FTPMU010_PDLLCR0_HCLKOUTDIS(cr0);
+       writel(pdllcr0, &pmu->PDLLCR0);
+}

diff --git a/arch/arm/include/asm/arch-a320/ftpmu010.h b/drivers/power/ftpmu010.h
similarity index 100%
rename from arch/arm/include/asm/arch-a320/ftpmu010.h
rename to drivers/power/ftpmu010.h