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>

3 files changed, 212 insertions, 0 deletions

diff --git a/drivers/power/Makefile b/drivers/power/Makefile
index c9ba1ae..ead00f8 100644
--- 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
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/drivers/power/ftpmu010.h b/drivers/power/ftpmu010.h
new file mode 100644
index 0000000..8ef7a37
--- /dev/null
+++ b/drivers/power/ftpmu010.h
@@ -0,0 +1,146 @@
+/*
+ * (C) Copyright 2009 Faraday Technology
+ * Po-Yu Chuang <ratbert@faraday-tech.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.
+ */
+
+/*
+ * Power Management Unit
+ */
+#ifndef __FTPMU010_H
+#define __FTPMU010_H
+
+struct ftpmu010 {
+	unsigned int	IDNMBR0;	/* 0x00 */
+	unsigned int	reserved0;	/* 0x04 */
+	unsigned int	OSCC;		/* 0x08 */
+	unsigned int	PMODE;		/* 0x0C */
+	unsigned int	PMCR;		/* 0x10 */
+	unsigned int	PED;		/* 0x14 */
+	unsigned int	PEDSR;		/* 0x18 */
+	unsigned int	reserved1;	/* 0x1C */
+	unsigned int	PMSR;		/* 0x20 */
+	unsigned int	PGSR;		/* 0x24 */
+	unsigned int	MFPSR;		/* 0x28 */
+	unsigned int	MISC;		/* 0x2C */
+	unsigned int	PDLLCR0;	/* 0x30 */
+	unsigned int	PDLLCR1;	/* 0x34 */
+	unsigned int	AHBMCLKOFF;	/* 0x38 */
+	unsigned int	APBMCLKOFF;	/* 0x3C */
+	unsigned int	DCSRCR0;	/* 0x40 */
+	unsigned int	DCSRCR1;	/* 0x44 */
+	unsigned int	DCSRCR2;	/* 0x48 */
+	unsigned int	SDRAMHTC;	/* 0x4C */
+	unsigned int	PSPR0;		/* 0x50 */
+	unsigned int	PSPR1;		/* 0x54 */
+	unsigned int	PSPR2;		/* 0x58 */
+	unsigned int	PSPR3;		/* 0x5C */
+	unsigned int	PSPR4;		/* 0x60 */
+	unsigned int	PSPR5;		/* 0x64 */
+	unsigned int	PSPR6;		/* 0x68 */
+	unsigned int	PSPR7;		/* 0x6C */
+	unsigned int	PSPR8;		/* 0x70 */
+	unsigned int	PSPR9;		/* 0x74 */
+	unsigned int	PSPR10;		/* 0x78 */
+	unsigned int	PSPR11;		/* 0x7C */
+	unsigned int	PSPR12;		/* 0x80 */
+	unsigned int	PSPR13;		/* 0x84 */
+	unsigned int	PSPR14;		/* 0x88 */
+	unsigned int	PSPR15;		/* 0x8C */
+	unsigned int	AHBDMA_RACCS;	/* 0x90 */
+	unsigned int	reserved2;	/* 0x94 */
+	unsigned int	reserved3;	/* 0x98 */
+	unsigned int	JSS;		/* 0x9C */
+	unsigned int	CFC_RACC;	/* 0xA0 */
+	unsigned int	SSP1_RACC;	/* 0xA4 */
+	unsigned int	UART1TX_RACC;	/* 0xA8 */
+	unsigned int	UART1RX_RACC;	/* 0xAC */
+	unsigned int	UART2TX_RACC;	/* 0xB0 */
+	unsigned int	UART2RX_RACC;	/* 0xB4 */
+	unsigned int	SDC_RACC;	/* 0xB8 */
+	unsigned int	I2SAC97_RACC;	/* 0xBC */
+	unsigned int	IRDATX_RACC;	/* 0xC0 */
+	unsigned int	reserved4;	/* 0xC4 */
+	unsigned int	USBD_RACC;	/* 0xC8 */
+	unsigned int	IRDARX_RACC;	/* 0xCC */
+	unsigned int	IRDA_RACC;	/* 0xD0 */
+	unsigned int	ED0_RACC;	/* 0xD4 */
+	unsigned int	ED1_RACC;	/* 0xD8 */
+};
+
+/*
+ * ID Number 0 Register
+ */
+#define FTPMU010_ID_A320A	0x03200000
+#define FTPMU010_ID_A320C	0x03200010
+#define FTPMU010_ID_A320D	0x03200030
+
+/*
+ * OSC Control Register
+ */
+#define FTPMU010_OSCC_OSCH_TRI		(1 << 11)
+#define FTPMU010_OSCC_OSCH_STABLE	(1 << 9)
+#define FTPMU010_OSCC_OSCH_OFF		(1 << 8)
+
+#define FTPMU010_OSCC_OSCL_TRI		(1 << 3)
+#define FTPMU010_OSCC_OSCL_RTCLSEL	(1 << 2)
+#define FTPMU010_OSCC_OSCL_STABLE	(1 << 1)
+#define FTPMU010_OSCC_OSCL_OFF		(1 << 0)
+
+/*
+ * Power Mode Register
+ */
+#define FTPMU010_PMODE_DIVAHBCLK_MASK	(0x7 << 4)
+#define FTPMU010_PMODE_DIVAHBCLK_2	(0x0 << 4)
+#define FTPMU010_PMODE_DIVAHBCLK_3	(0x1 << 4)
+#define FTPMU010_PMODE_DIVAHBCLK_4	(0x2 << 4)
+#define FTPMU010_PMODE_DIVAHBCLK_6	(0x3 << 4)
+#define FTPMU010_PMODE_DIVAHBCLK_8	(0x4 << 4)
+#define FTPMU010_PMODE_DIVAHBCLK(pmode)	(((pmode) >> 4) & 0x7)
+#define FTPMU010_PMODE_FCS		(1 << 2)
+#define FTPMU010_PMODE_TURBO		(1 << 1)
+#define FTPMU010_PMODE_SLEEP		(1 << 0)
+
+/*
+ * Power Manager Status Register
+ */
+#define FTPMU010_PMSR_SMR	(1 << 10)
+
+#define FTPMU010_PMSR_RDH	(1 << 2)
+#define FTPMU010_PMSR_PH	(1 << 1)
+#define FTPMU010_PMSR_CKEHLOW	(1 << 0)
+
+/*
+ * Multi-Function Port Setting Register
+ */
+#define FTPMU010_MFPSR_MODEMPINSEL	(1 << 14)
+#define FTPMU010_MFPSR_AC97CLKOUTSEL	(1 << 13)
+#define FTPMU010_MFPSR_AC97PINSEL	(1 << 3)
+
+/*
+ * PLL/DLL Control Register 0
+ */
+#define FTPMU010_PDLLCR0_HCLKOUTDIS(cr0)	(((cr0) >> 20) & 0xf)
+#define FTPMU010_PDLLCR0_DLLFRAG		(1 << 19)
+#define FTPMU010_PDLLCR0_DLLSTSEL		(1 << 18)
+#define FTPMU010_PDLLCR0_DLLSTABLE		(1 << 17)
+#define FTPMU010_PDLLCR0_DLLDIS			(1 << 16)
+#define FTPMU010_PDLLCR0_PLL1NS(cr0)		(((cr0) >> 3) & 0x1ff)
+#define FTPMU010_PDLLCR0_PLL1STSEL		(1 << 2)
+#define FTPMU010_PDLLCR0_PLL1STABLE		(1 << 1)
+#define FTPMU010_PDLLCR0_PLL1DIS		(1 << 0)
+
+#endif	/* __FTPMU010_H */