arch/arm/mach-davinci/da850.c

/*
 * TI DA850/OMAP-L138 chip specific setup
 *
 * Copyright (C) 2009 Texas Instruments Incorporated - http://www.ti.com/
 *
 * Derived from: arch/arm/mach-davinci/da830.c
 * Original Copyrights follow:
 *
 * 2009 (c) MontaVista Software, Inc. This file is licensed under
 * the terms of the GNU General Public License version 2. This program
 * is licensed "as is" without any warranty of any kind, whether express
 * or implied.
 */
#include <linux/init.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/cpufreq.h>
#include <linux/regulator/consumer.h>

#include <asm/mach/map.h>

#include <mach/psc.h>
#include <mach/irqs.h>
#include <mach/cputype.h>
#include <mach/common.h>
#include <mach/time.h>
#include <mach/da8xx.h>
#include <mach/cpufreq.h>
#include <mach/pm.h>
#include <mach/gpio.h>

#include "clock.h"
#include "mux.h"

/* SoC specific clock flags */
#define DA850_CLK_ASYNC3	BIT(16)

#define DA850_PLL1_BASE		0x01e1a000
#define DA850_TIMER64P2_BASE	0x01f0c000
#define DA850_TIMER64P3_BASE	0x01f0d000

#define DA850_REF_FREQ		24000000

#define CFGCHIP3_ASYNC3_CLKSRC	BIT(4)
#define CFGCHIP3_PLL1_MASTER_LOCK	BIT(5)
#define CFGCHIP0_PLL_MASTER_LOCK	BIT(4)

static int da850_set_armrate(struct clk *clk, unsigned long rate);
static int da850_round_armrate(struct clk *clk, unsigned long rate);
static int da850_set_pll0rate(struct clk *clk, unsigned long armrate);

static struct pll_data pll0_data = {
	.num		= 1,
	.phys_base	= DA8XX_PLL0_BASE,
	.flags		= PLL_HAS_PREDIV | PLL_HAS_POSTDIV,
};

static struct clk ref_clk = {
	.name		= "ref_clk",
	.rate		= DA850_REF_FREQ,
};

static struct clk pll0_clk = {
	.name		= "pll0",
	.parent		= &ref_clk,
	.pll_data	= &pll0_data,
	.flags		= CLK_PLL,
	.set_rate	= da850_set_pll0rate,
};

static struct clk pll0_aux_clk = {
	.name		= "pll0_aux_clk",
	.parent		= &pll0_clk,
	.flags		= CLK_PLL | PRE_PLL,
};

static struct clk pll0_sysclk2 = {
	.name		= "pll0_sysclk2",
	.parent		= &pll0_clk,
	.flags		= CLK_PLL,
	.div_reg	= PLLDIV2,
};

static struct clk pll0_sysclk3 = {
	.name		= "pll0_sysclk3",
	.parent		= &pll0_clk,
	.flags		= CLK_PLL,
	.div_reg	= PLLDIV3,
	.set_rate	= davinci_set_sysclk_rate,
	.maxrate	= 100000000,
};

static struct clk pll0_sysclk4 = {
	.name		= "pll0_sysclk4",
	.parent		= &pll0_clk,
	.flags		= CLK_PLL,
	.div_reg	= PLLDIV4,
};

static struct clk pll0_sysclk5 = {
	.name		= "pll0_sysclk5",
	.parent		= &pll0_clk,
	.flags		= CLK_PLL,
	.div_reg	= PLLDIV5,
};

static struct clk pll0_sysclk6 = {
	.name		= "pll0_sysclk6",
	.parent		= &pll0_clk,
	.flags		= CLK_PLL,
	.div_reg	= PLLDIV6,
};

static struct clk pll0_sysclk7 = {
	.name		= "pll0_sysclk7",
	.parent		= &pll0_clk,
	.flags		= CLK_PLL,
	.div_reg	= PLLDIV7,
};

static struct pll_data pll1_data = {
	.num		= 2,
	.phys_base	= DA850_PLL1_BASE,
	.flags		= PLL_HAS_POSTDIV,
};

static struct clk pll1_clk = {
	.name		= "pll1",
	.parent		= &ref_clk,
	.pll_data	= &pll1_data,
	.flags		= CLK_PLL,
};

static struct clk pll1_aux_clk = {
	.name		= "pll1_aux_clk",
	.parent		= &pll1_clk,
	.flags		= CLK_PLL | PRE_PLL,
};

static struct clk pll1_sysclk2 = {
	.name		= "pll1_sysclk2",
	.parent		= &pll1_clk,
	.flags		= CLK_PLL,
	.div_reg	= PLLDIV2,
};

static struct clk pll1_sysclk3 = {
	.name		= "pll1_sysclk3",
	.parent		= &pll1_clk,
	.flags		= CLK_PLL,
	.div_reg	= PLLDIV3,
};

static struct clk pll1_sysclk4 = {
	.name		= "pll1_sysclk4",
	.parent		= &pll1_clk,
	.flags		= CLK_PLL,
	.div_reg	= PLLDIV4,
};

static struct clk pll1_sysclk5 = {
	.name		= "pll1_sysclk5",
	.parent		= &pll1_clk,
	.flags		= CLK_PLL,
	.div_reg	= PLLDIV5,
};

static struct clk pll1_sysclk6 = {
	.name		= "pll0_sysclk6",
	.parent		= &pll0_clk,
	.flags		= CLK_PLL,
	.div_reg	= PLLDIV6,
};

static struct clk pll1_sysclk7 = {
	.name		= "pll1_sysclk7",
	.parent		= &pll1_clk,
	.flags		= CLK_PLL,
	.div_reg	= PLLDIV7,
};

static struct clk i2c0_clk = {
	.name		= "i2c0",
	.parent		= &pll0_aux_clk,
};

static struct clk timerp64_0_clk = {
	.name		= "timer0",
	.parent		= &pll0_aux_clk,
};

static struct clk timerp64_1_clk = {
	.name		= "timer1",
	.parent		= &pll0_aux_clk,
};

static struct clk arm_rom_clk = {
	.name		= "arm_rom",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA8XX_LPSC0_ARM_RAM_ROM,
	.flags		= ALWAYS_ENABLED,
};

static struct clk tpcc0_clk = {
	.name		= "tpcc0",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA8XX_LPSC0_TPCC,
	.flags		= ALWAYS_ENABLED | CLK_PSC,
};

static struct clk tptc0_clk = {
	.name		= "tptc0",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA8XX_LPSC0_TPTC0,
	.flags		= ALWAYS_ENABLED,
};

static struct clk tptc1_clk = {
	.name		= "tptc1",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA8XX_LPSC0_TPTC1,
	.flags		= ALWAYS_ENABLED,
};

static struct clk tpcc1_clk = {
	.name		= "tpcc1",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA850_LPSC1_TPCC1,
	.gpsc		= 1,
	.flags		= CLK_PSC | ALWAYS_ENABLED,
};

static struct clk tptc2_clk = {
	.name		= "tptc2",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA850_LPSC1_TPTC2,
	.gpsc		= 1,
	.flags		= ALWAYS_ENABLED,
};

static struct clk uart0_clk = {
	.name		= "uart0",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA8XX_LPSC0_UART0,
};

static struct clk uart1_clk = {
	.name		= "uart1",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA8XX_LPSC1_UART1,
	.gpsc		= 1,
	.flags		= DA850_CLK_ASYNC3,
};

static struct clk uart2_clk = {
	.name		= "uart2",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA8XX_LPSC1_UART2,
	.gpsc		= 1,
	.flags		= DA850_CLK_ASYNC3,
};

static struct clk aintc_clk = {
	.name		= "aintc",
	.parent		= &pll0_sysclk4,
	.lpsc		= DA8XX_LPSC0_AINTC,
	.flags		= ALWAYS_ENABLED,
};

static struct clk gpio_clk = {
	.name		= "gpio",
	.parent		= &pll0_sysclk4,
	.lpsc		= DA8XX_LPSC1_GPIO,
	.gpsc		= 1,
};

static struct clk i2c1_clk = {
	.name		= "i2c1",
	.parent		= &pll0_sysclk4,
	.lpsc		= DA8XX_LPSC1_I2C,
	.gpsc		= 1,
};

static struct clk emif3_clk = {
	.name		= "emif3",
	.parent		= &pll0_sysclk5,
	.lpsc		= DA8XX_LPSC1_EMIF3C,
	.gpsc		= 1,
	.flags		= ALWAYS_ENABLED,
};

static struct clk arm_clk = {
	.name		= "arm",
	.parent		= &pll0_sysclk6,
	.lpsc		= DA8XX_LPSC0_ARM,
	.flags		= ALWAYS_ENABLED,
	.set_rate	= da850_set_armrate,
	.round_rate	= da850_round_armrate,
};

static struct clk rmii_clk = {
	.name		= "rmii",
	.parent		= &pll0_sysclk7,
};

static struct clk emac_clk = {
	.name		= "emac",
	.parent		= &pll0_sysclk4,
	.lpsc		= DA8XX_LPSC1_CPGMAC,
	.gpsc		= 1,
};

static struct clk mcasp_clk = {
	.name		= "mcasp",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA8XX_LPSC1_McASP0,
	.gpsc		= 1,
	.flags		= DA850_CLK_ASYNC3,
};

static struct clk lcdc_clk = {
	.name		= "lcdc",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA8XX_LPSC1_LCDC,
	.gpsc		= 1,
};

static struct clk mmcsd0_clk = {
	.name		= "mmcsd0",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA8XX_LPSC0_MMC_SD,
};

static struct clk mmcsd1_clk = {
	.name		= "mmcsd1",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA850_LPSC1_MMC_SD1,
	.gpsc		= 1,
};

static struct clk aemif_clk = {
	.name		= "aemif",
	.parent		= &pll0_sysclk3,
	.lpsc		= DA8XX_LPSC0_EMIF25,
	.flags		= ALWAYS_ENABLED,
};

static struct clk usb11_clk = {
	.name		= "usb11",
	.parent		= &pll0_sysclk4,
	.lpsc		= DA8XX_LPSC1_USB11,
	.gpsc		= 1,
};

static struct clk usb20_clk = {
	.name		= "usb20",
	.parent		= &pll0_sysclk2,
	.lpsc		= DA8XX_LPSC1_USB20,
	.gpsc		= 1,
};

static struct clk_lookup da850_clks[] = {
	CLK(NULL,		"ref",		&ref_clk),
	CLK(NULL,		"pll0",		&pll0_clk),
	CLK(NULL,		"pll0_aux",	&pll0_aux_clk),
	CLK(NULL,		"pll0_sysclk2",	&pll0_sysclk2),
	CLK(NULL,		"pll0_sysclk3",	&pll0_sysclk3),
	CLK(NULL,		"pll0_sysclk4",	&pll0_sysclk4),
	CLK(NULL,		"pll0_sysclk5",	&pll0_sysclk5),
	CLK(NULL,		"pll0_sysclk6",	&pll0_sysclk6),
	CLK(NULL,		"pll0_sysclk7",	&pll0_sysclk7),
	CLK(NULL,		"pll1",		&pll1_clk),
	CLK(NULL,		"pll1_aux",	&pll1_aux_clk),
	CLK(NULL,		"pll1_sysclk2",	&pll1_sysclk2),
	CLK(NULL,		"pll1_sysclk3",	&pll1_sysclk3),
	CLK(NULL,		"pll1_sysclk4",	&pll1_sysclk4),
	CLK(NULL,		"pll1_sysclk5",	&pll1_sysclk5),
	CLK(NULL,		"pll1_sysclk6",	&pll1_sysclk6),
	CLK(NULL,		"pll1_sysclk7",	&pll1_sysclk7),
	CLK("i2c_davinci.1",	NULL,		&i2c0_clk),
	CLK(NULL,		"timer0",	&timerp64_0_clk),
	CLK("watchdog",		NULL,		&timerp64_1_clk),
	CLK(NULL,		"arm_rom",	&arm_rom_clk),
	CLK(NULL,		"tpcc0",	&tpcc0_clk),
	CLK(NULL,		"tptc0",	&tptc0_clk),
	CLK(NULL,		"tptc1",	&tptc1_clk),
	CLK(NULL,		"tpcc1",	&tpcc1_clk),
	CLK(NULL,		"tptc2",	&tptc2_clk),
	CLK(NULL,		"uart0",	&uart0_clk),
	CLK(NULL,		"uart1",	&uart1_clk),
	CLK(NULL,		"uart2",	&uart2_clk),
	CLK(NULL,		"aintc",	&aintc_clk),
	CLK(NULL,		"gpio",		&gpio_clk),
	CLK("i2c_davinci.2",	NULL,		&i2c1_clk),
	CLK(NULL,		"emif3",	&emif3_clk),
	CLK(NULL,		"arm",		&arm_clk),
	CLK(NULL,		"rmii",		&rmii_clk),
	CLK("davinci_emac.1",	NULL,		&emac_clk),
	CLK("davinci-mcasp.0",	NULL,		&mcasp_clk),
	CLK("da8xx_lcdc.0",	NULL,		&lcdc_clk),
	CLK("davinci_mmc.0",	NULL,		&mmcsd0_clk),
	CLK("davinci_mmc.1",	NULL,		&mmcsd1_clk),
	CLK(NULL,		"aemif",	&aemif_clk),
	CLK(NULL,		"usb11",	&usb11_clk),
	CLK(NULL,		"usb20",	&usb20_clk),
	CLK(NULL,		NULL,		NULL),
};

/*
 * Device specific mux setup
 *
 *		soc	description	mux	mode	mode	mux	dbg
 *					reg	offset	mask	mode
 */
static const struct mux_config da850_pins[] = {
#ifdef CONFIG_DAVINCI_MUX
	/* UART0 function */
	MUX_CFG(DA850, NUART0_CTS,	3,	24,	15,	2,	false)
	MUX_CFG(DA850, NUART0_RTS,	3,	28,	15,	2,	false)
	MUX_CFG(DA850, UART0_RXD,	3,	16,	15,	2,	false)
	MUX_CFG(DA850, UART0_TXD,	3,	20,	15,	2,	false)
	/* UART1 function */
	MUX_CFG(DA850, UART1_RXD,	4,	24,	15,	2,	false)
	MUX_CFG(DA850, UART1_TXD,	4,	28,	15,	2,	false)
	/* UART2 function */
	MUX_CFG(DA850, UART2_RXD,	4,	16,	15,	2,	false)
	MUX_CFG(DA850, UART2_TXD,	4,	20,	15,	2,	false)
	/* I2C1 function */
	MUX_CFG(DA850, I2C1_SCL,	4,	16,	15,	4,	false)
	MUX_CFG(DA850, I2C1_SDA,	4,	20,	15,	4,	false)
	/* I2C0 function */
	MUX_CFG(DA850, I2C0_SDA,	4,	12,	15,	2,	false)
	MUX_CFG(DA850, I2C0_SCL,	4,	8,	15,	2,	false)
	/* EMAC function */
	MUX_CFG(DA850, MII_TXEN,	2,	4,	15,	8,	false)
	MUX_CFG(DA850, MII_TXCLK,	2,	8,	15,	8,	false)
	MUX_CFG(DA850, MII_COL,		2,	12,	15,	8,	false)
	MUX_CFG(DA850, MII_TXD_3,	2,	16,	15,	8,	false)
	MUX_CFG(DA850, MII_TXD_2,	2,	20,	15,	8,	false)
	MUX_CFG(DA850, MII_TXD_1,	2,	24,	15,	8,	false)
	MUX_CFG(DA850, MII_TXD_0,	2,	28,	15,	8,	false)
	MUX_CFG(DA850, MII_RXCLK,	3,	0,	15,	8,	false)
	MUX_CFG(DA850, MII_RXDV,	3,	4,	15,	8,	false)
	MUX_CFG(DA850, MII_RXER,	3,	8,	15,	8,	false)
	MUX_CFG(DA850, MII_CRS,		3,	12,	15,	8,	false)
	MUX_CFG(DA850, MII_RXD_3,	3,	16,	15,	8,	false)
	MUX_CFG(DA850, MII_RXD_2,	3,	20,	15,	8,	false)
	MUX_CFG(DA850, MII_RXD_1,	3,	24,	15,	8,	false)
	MUX_CFG(DA850, MII_RXD_0,	3,	28,	15,	8,	false)
	MUX_CFG(DA850, MDIO_CLK,	4,	0,	15,	8,	false)
	MUX_CFG(DA850, MDIO_D,		4,	4,	15,	8,	false)
	MUX_CFG(DA850, RMII_TXD_0,	14,	12,	15,	8,	false)
	MUX_CFG(DA850, RMII_TXD_1,	14,	8,	15,	8,	false)
	MUX_CFG(DA850, RMII_TXEN,	14,	16,	15,	8,	false)
	MUX_CFG(DA850, RMII_CRS_DV,	15,	4,	15,	8,	false)
	MUX_CFG(DA850, RMII_RXD_0,	14,	24,	15,	8,	false)
	MUX_CFG(DA850, RMII_RXD_1,	14,	20,	15,	8,	false)
	MUX_CFG(DA850, RMII_RXER,	14,	28,	15,	8,	false)
	MUX_CFG(DA850, RMII_MHZ_50_CLK,	15,	0,	15,	0,	false)
	/* McASP function */
	MUX_CFG(DA850,	ACLKR,		0,	0,	15,	1,	false)
	MUX_CFG(DA850,	ACLKX,		0,	4,	15,	1,	false)
	MUX_CFG(DA850,	AFSR,		0,	8,	15,	1,	false)
	MUX_CFG(DA850,	AFSX,		0,	12,	15,	1,	false)
	MUX_CFG(DA850,	AHCLKR,		0,	16,	15,	1,	false)
	MUX_CFG(DA850,	AHCLKX,		0,	20,	15,	1,	false)
	MUX_CFG(DA850,	AMUTE,		0,	24,	15,	1,	false)
	MUX_CFG(DA850,	AXR_15,		1,	0,	15,	1,	false)
	MUX_CFG(DA850,	AXR_14,		1,	4,	15,	1,	false)
	MUX_CFG(DA850,	AXR_13,		1,	8,	15,	1,	false)
	MUX_CFG(DA850,	AXR_12,		1,	12,	15,	1,	false)
	MUX_CFG(DA850,	AXR_11,		1,	16,	15,	1,	false)
	MUX_CFG(DA850,	AXR_10,		1,	20,	15,	1,	false)
	MUX_CFG(DA850,	AXR_9,		1,	24,	15,	1,	false)
	MUX_CFG(DA850,	AXR_8,		1,	28,	15,	1,	false)
	MUX_CFG(DA850,	AXR_7,		2,	0,	15,	1,	false)
	MUX_CFG(DA850,	AXR_6,		2,	4,	15,	1,	false)
	MUX_CFG(DA850,	AXR_5,		2,	8,	15,	1,	false)
	MUX_CFG(DA850,	AXR_4,		2,	12,	15,	1,	false)
	MUX_CFG(DA850,	AXR_3,		2,	16,	15,	1,	false)
	MUX_CFG(DA850,	AXR_2,		2,	20,	15,	1,	false)
	MUX_CFG(DA850,	AXR_1,		2,	24,	15,	1,	false)
	MUX_CFG(DA850,	AXR_0,		2,	28,	15,	1,	false)
	/* LCD function */
	MUX_CFG(DA850, LCD_D_7,		16,	8,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_6,		16,	12,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_5,		16,	16,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_4,		16,	20,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_3,		16,	24,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_2,		16,	28,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_1,		17,	0,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_0,		17,	4,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_15,	17,	8,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_14,	17,	12,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_13,	17,	16,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_12,	17,	20,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_11,	17,	24,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_10,	17,	28,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_9,		18,	0,	15,	2,	false)
	MUX_CFG(DA850, LCD_D_8,		18,	4,	15,	2,	false)
	MUX_CFG(DA850, LCD_PCLK,	18,	24,	15,	2,	false)
	MUX_CFG(DA850, LCD_HSYNC,	19,	0,	15,	2,	false)
	MUX_CFG(DA850, LCD_VSYNC,	19,	4,	15,	2,	false)
	MUX_CFG(DA850, NLCD_AC_ENB_CS,	19,	24,	15,	2,	false)
	/* MMC/SD0 function */
	MUX_CFG(DA850, MMCSD0_DAT_0,	10,	8,	15,	2,	false)
	MUX_CFG(DA850, MMCSD0_DAT_1,	10,	12,	15,	2,	false)
	MUX_CFG(DA850, MMCSD0_DAT_2,	10,	16,	15,	2,	false)
	MUX_CFG(DA850, MMCSD0_DAT_3,	10,	20,	15,	2,	false)
	MUX_CFG(DA850, MMCSD0_CLK,	10,	0,	15,	2,	false)
	MUX_CFG(DA850, MMCSD0_CMD,	10,	4,	15,	2,	false)
	/* EMIF2.5/EMIFA function */
	MUX_CFG(DA850, EMA_D_7,		9,	0,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_6,		9,	4,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_5,		9,	8,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_4,		9,	12,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_3,		9,	16,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_2,		9,	20,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_1,		9,	24,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_0,		9,	28,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_1,		12,	24,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_2,		12,	20,	15,	1,	false)
	MUX_CFG(DA850, NEMA_CS_3,	7,	4,	15,	1,	false)
	MUX_CFG(DA850, NEMA_CS_4,	7,	8,	15,	1,	false)
	MUX_CFG(DA850, NEMA_WE,		7,	16,	15,	1,	false)
	MUX_CFG(DA850, NEMA_OE,		7,	20,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_0,		12,	28,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_3,		12,	16,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_4,		12,	12,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_5,		12,	8,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_6,		12,	4,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_7,		12,	0,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_8,		11,	28,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_9,		11,	24,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_10,	11,	20,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_11,	11,	16,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_12,	11,	12,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_13,	11,	8,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_14,	11,	4,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_15,	11,	0,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_16,	10,	28,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_17,	10,	24,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_18,	10,	20,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_19,	10,	16,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_20,	10,	12,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_21,	10,	8,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_22,	10,	4,	15,	1,	false)
	MUX_CFG(DA850, EMA_A_23,	10,	0,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_8,		8,	28,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_9,		8,	24,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_10,	8,	20,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_11,	8,	16,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_12,	8,	12,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_13,	8,	8,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_14,	8,	4,	15,	1,	false)
	MUX_CFG(DA850, EMA_D_15,	8,	0,	15,	1,	false)
	MUX_CFG(DA850, EMA_BA_1,	5,	24,	15,	1,	false)
	MUX_CFG(DA850, EMA_CLK,		6,	0,	15,	1,	false)
	MUX_CFG(DA850, EMA_WAIT_1,	6,	24,	15,	1,	false)
	MUX_CFG(DA850, NEMA_CS_2,	7,	0,	15,	1,	false)
	/* GPIO function */
	MUX_CFG(DA850, GPIO2_4,		6,	12,	15,	8,	false)
	MUX_CFG(DA850, GPIO2_6,		6,	4,	15,	8,	false)
	MUX_CFG(DA850, GPIO2_8,		5,	28,	15,	8,	false)
	MUX_CFG(DA850, GPIO2_15,	5,	0,	15,	8,	false)
	MUX_CFG(DA850, GPIO3_12,	7,	12,	15,	8,	false)
	MUX_CFG(DA850, GPIO3_13,	7,	8,	15,	8,	false)
	MUX_CFG(DA850, GPIO4_0,		10,	28,	15,	8,	false)
	MUX_CFG(DA850, GPIO4_1,		10,	24,	15,	8,	false)
	MUX_CFG(DA850, GPIO6_13,	13,	8,	15,	8,	false)
	MUX_CFG(DA850, RTC_ALARM,	0,	28,	15,	2,	false)
#endif
};

const short da850_i2c0_pins[] __initdata = {
	DA850_I2C0_SDA, DA850_I2C0_SCL,
	-1
};

const short da850_i2c1_pins[] __initdata = {
	DA850_I2C1_SCL, DA850_I2C1_SDA,
	-1
};

const short da850_lcdcntl_pins[] __initdata = {
	DA850_LCD_D_0, DA850_LCD_D_1, DA850_LCD_D_2, DA850_LCD_D_3,
	DA850_LCD_D_4, DA850_LCD_D_5, DA850_LCD_D_6, DA850_LCD_D_7,
	DA850_LCD_D_8, DA850_LCD_D_9, DA850_LCD_D_10, DA850_LCD_D_11,
	DA850_LCD_D_12, DA850_LCD_D_13, DA850_LCD_D_14, DA850_LCD_D_15,
	DA850_LCD_PCLK, DA850_LCD_HSYNC, DA850_LCD_VSYNC, DA850_NLCD_AC_ENB_CS,
	-1
};

/* FIQ are pri 0-1; otherwise 2-7, with 7 lowest priority */
static u8 da850_default_priorities[DA850_N_CP_INTC_IRQ] = {
	[IRQ_DA8XX_COMMTX]		= 7,
	[IRQ_DA8XX_COMMRX]		= 7,
	[IRQ_DA8XX_NINT]		= 7,
	[IRQ_DA8XX_EVTOUT0]		= 7,
	[IRQ_DA8XX_EVTOUT1]		= 7,
	[IRQ_DA8XX_EVTOUT2]		= 7,
	[IRQ_DA8XX_EVTOUT3]		= 7,
	[IRQ_DA8XX_EVTOUT4]		= 7,
	[IRQ_DA8XX_EVTOUT5]		= 7,
	[IRQ_DA8XX_EVTOUT6]		= 7,
	[IRQ_DA8XX_EVTOUT7]		= 7,
	[IRQ_DA8XX_CCINT0]		= 7,
	[IRQ_DA8XX_CCERRINT]		= 7,
	[IRQ_DA8XX_TCERRINT0]		= 7,
	[IRQ_DA8XX_AEMIFINT]		= 7,
	[IRQ_DA8XX_I2CINT0]		= 7,
	[IRQ_DA8XX_MMCSDINT0]		= 7,
	[IRQ_DA8XX_MMCSDINT1]		= 7,
	[IRQ_DA8XX_ALLINT0]		= 7,
	[IRQ_DA8XX_RTC]			= 7,
	[IRQ_DA8XX_SPINT0]		= 7,
	[IRQ_DA8XX_TINT12_0]		= 7,
	[IRQ_DA8XX_TINT34_0]		= 7,
	[IRQ_DA8XX_TINT12_1]		= 7,
	[IRQ_DA8XX_TINT34_1]		= 7,
	[IRQ_DA8XX_UARTINT0]		= 7,
	[IRQ_DA8XX_KEYMGRINT]		= 7,
	[IRQ_DA850_MPUADDRERR0]		= 7,
	[IRQ_DA8XX_CHIPINT0]		= 7,
	[IRQ_DA8XX_CHIPINT1]		= 7,
	[IRQ_DA8XX_CHIPINT2]		= 7,
	[IRQ_DA8XX_CHIPINT3]		= 7,
	[IRQ_DA8XX_TCERRINT1]		= 7,
	[IRQ_DA8XX_C0_RX_THRESH_PULSE]	= 7,
	[IRQ_DA8XX_C0_RX_PULSE]		= 7,
	[IRQ_DA8XX_C0_TX_PULSE]		= 7,
	[IRQ_DA8XX_C0_MISC_PULSE]	= 7,
	[IRQ_DA8XX_C1_RX_THRESH_PULSE]	= 7,
	[IRQ_DA8XX_C1_RX_PULSE]		= 7,
	[IRQ_DA8XX_C1_TX_PULSE]		= 7,
	[IRQ_DA8XX_C1_MISC_PULSE]	= 7,
	[IRQ_DA8XX_MEMERR]		= 7,
	[IRQ_DA8XX_GPIO0]		= 7,
	[IRQ_DA8XX_GPIO1]		= 7,
	[IRQ_DA8XX_GPIO2]		= 7,
	[IRQ_DA8XX_GPIO3]		= 7,
	[IRQ_DA8XX_GPIO4]		= 7,
	[IRQ_DA8XX_GPIO5]		= 7,
	[IRQ_DA8XX_GPIO6]		= 7,
	[IRQ_DA8XX_GPIO7]		= 7,
	[IRQ_DA8XX_GPIO8]		= 7,
	[IRQ_DA8XX_I2CINT1]		= 7,
	[IRQ_DA8XX_LCDINT]		= 7,
	[IRQ_DA8XX_UARTINT1]		= 7,
	[IRQ_DA8XX_MCASPINT]		= 7,
	[IRQ_DA8XX_ALLINT1]		= 7,
	[IRQ_DA8XX_SPINT1]		= 7,
	[IRQ_DA8XX_UHPI_INT1]		= 7,
	[IRQ_DA8XX_USB_INT]		= 7,
	[IRQ_DA8XX_IRQN]		= 7,
	[IRQ_DA8XX_RWAKEUP]		= 7,
	[IRQ_DA8XX_UARTINT2]		= 7,
	[IRQ_DA8XX_DFTSSINT]		= 7,
	[IRQ_DA8XX_EHRPWM0]		= 7,
	[IRQ_DA8XX_EHRPWM0TZ]		= 7,
	[IRQ_DA8XX_EHRPWM1]		= 7,
	[IRQ_DA8XX_EHRPWM1TZ]		= 7,
	[IRQ_DA850_SATAINT]		= 7,
	[IRQ_DA850_TINTALL_2]		= 7,
	[IRQ_DA8XX_ECAP0]		= 7,
	[IRQ_DA8XX_ECAP1]		= 7,
	[IRQ_DA8XX_ECAP2]		= 7,
	[IRQ_DA850_MMCSDINT0_1]		= 7,
	[IRQ_DA850_MMCSDINT1_1]		= 7,
	[IRQ_DA850_T12CMPINT0_2]	= 7,
	[IRQ_DA850_T12CMPINT1_2]	= 7,
	[IRQ_DA850_T12CMPINT2_2]	= 7,
	[IRQ_DA850_T12CMPINT3_2]	= 7,
	[IRQ_DA850_T12CMPINT4_2]	= 7,
	[IRQ_DA850_T12CMPINT5_2]	= 7,
	[IRQ_DA850_T12CMPINT6_2]	= 7,
	[IRQ_DA850_T12CMPINT7_2]	= 7,
	[IRQ_DA850_T12CMPINT0_3]	= 7,
	[IRQ_DA850_T12CMPINT1_3]	= 7,
	[IRQ_DA850_T12CMPINT2_3]	= 7,
	[IRQ_DA850_T12CMPINT3_3]	= 7,
	[IRQ_DA850_T12CMPINT4_3]	= 7,
	[IRQ_DA850_T12CMPINT5_3]	= 7,
	[IRQ_DA850_T12CMPINT6_3]	= 7,
	[IRQ_DA850_T12CMPINT7_3]	= 7,
	[IRQ_DA850_RPIINT]		= 7,
	[IRQ_DA850_VPIFINT]		= 7,
	[IRQ_DA850_CCINT1]		= 7,
	[IRQ_DA850_CCERRINT1]		= 7,
	[IRQ_DA850_TCERRINT2]		= 7,
	[IRQ_DA850_TINTALL_3]		= 7,
	[IRQ_DA850_MCBSP0RINT]		= 7,
	[IRQ_DA850_MCBSP0XINT]		= 7,
	[IRQ_DA850_MCBSP1RINT]		= 7,
	[IRQ_DA850_MCBSP1XINT]		= 7,
	[IRQ_DA8XX_ARMCLKSTOPREQ]	= 7,
};

static struct map_desc da850_io_desc[] = {
	{
		.virtual	= IO_VIRT,
		.pfn		= __phys_to_pfn(IO_PHYS),
		.length		= IO_SIZE,
		.type		= MT_DEVICE
	},
	{
		.virtual	= DA8XX_CP_INTC_VIRT,
		.pfn		= __phys_to_pfn(DA8XX_CP_INTC_BASE),
		.length		= DA8XX_CP_INTC_SIZE,
		.type		= MT_DEVICE
	},
	{
		.virtual	= SRAM_VIRT,
		.pfn		= __phys_to_pfn(DA8XX_ARM_RAM_BASE),
		.length		= SZ_8K,
		.type		= MT_DEVICE
	},
};

static u32 da850_psc_bases[] = { DA8XX_PSC0_BASE, DA8XX_PSC1_BASE };

/* Contents of JTAG ID register used to identify exact cpu type */
static struct davinci_id da850_ids[] = {
	{
		.variant	= 0x0,
		.part_no	= 0xb7d1,
		.manufacturer	= 0x017,	/* 0x02f >> 1 */
		.cpu_id		= DAVINCI_CPU_ID_DA850,
		.name		= "da850/omap-l138",
	},
	{
		.variant	= 0x1,
		.part_no	= 0xb7d1,
		.manufacturer	= 0x017,	/* 0x02f >> 1 */
		.cpu_id		= DAVINCI_CPU_ID_DA850,
		.name		= "da850/omap-l138/am18x",
	},
};

static struct davinci_timer_instance da850_timer_instance[4] = {
	{
		.base		= DA8XX_TIMER64P0_BASE,
		.bottom_irq	= IRQ_DA8XX_TINT12_0,
		.top_irq	= IRQ_DA8XX_TINT34_0,
	},
	{
		.base		= DA8XX_TIMER64P1_BASE,
		.bottom_irq	= IRQ_DA8XX_TINT12_1,
		.top_irq	= IRQ_DA8XX_TINT34_1,
	},
	{
		.base		= DA850_TIMER64P2_BASE,
		.bottom_irq	= IRQ_DA850_TINT12_2,
		.top_irq	= IRQ_DA850_TINT34_2,
	},
	{
		.base		= DA850_TIMER64P3_BASE,
		.bottom_irq	= IRQ_DA850_TINT12_3,
		.top_irq	= IRQ_DA850_TINT34_3,
	},
};

/*
 * T0_BOT: Timer 0, bottom		: Used for clock_event
 * T0_TOP: Timer 0, top			: Used for clocksource
 * T1_BOT, T1_TOP: Timer 1, bottom & top: Used for watchdog timer
 */
static struct davinci_timer_info da850_timer_info = {
	.timers		= da850_timer_instance,
	.clockevent_id	= T0_BOT,
	.clocksource_id	= T0_TOP,
};

static void da850_set_async3_src(int pllnum)
{
	struct clk *clk, *newparent = pllnum ? &pll1_sysclk2 : &pll0_sysclk2;
	struct clk_lookup *c;
	unsigned int v;
	int ret;

	for (c = da850_clks; c->clk; c++) {
		clk = c->clk;
		if (clk->flags & DA850_CLK_ASYNC3) {
			ret = clk_set_parent(clk, newparent);
			WARN(ret, "DA850: unable to re-parent clock %s",
								clk->name);
		}
       }

	v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
	if (pllnum)
		v |= CFGCHIP3_ASYNC3_CLKSRC;
	else
		v &= ~CFGCHIP3_ASYNC3_CLKSRC;
	__raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
}

#ifdef CONFIG_CPU_FREQ
/*
 * Notes:
 * According to the TRM, minimum PLLM results in maximum power savings.
 * The OPP definitions below should keep the PLLM as low as possible.
 *
 * The output of the PLLM must be between 300 to 600 MHz.
 */
struct da850_opp {
	unsigned int	freq;	/* in KHz */
	unsigned int	prediv;
	unsigned int	mult;
	unsigned int	postdiv;
	unsigned int	cvdd_min; /* in uV */
	unsigned int	cvdd_max; /* in uV */
};

static const struct da850_opp da850_opp_456 = {
	.freq		= 456000,
	.prediv		= 1,
	.mult		= 19,
	.postdiv	= 1,
	.cvdd_min	= 1300000,
	.cvdd_max	= 1350000,
};

static const struct da850_opp da850_opp_408 = {
	.freq		= 408000,
	.prediv		= 1,
	.mult		= 17,
	.postdiv	= 1,
	.cvdd_min	= 1300000,
	.cvdd_max	= 1350000,
};

static const struct da850_opp da850_opp_372 = {
	.freq		= 372000,
	.prediv		= 2,
	.mult		= 31,
	.postdiv	= 1,
	.cvdd_min	= 1200000,
	.cvdd_max	= 1320000,
};

static const struct da850_opp da850_opp_300 = {
	.freq		= 300000,
	.prediv		= 1,
	.mult		= 25,
	.postdiv	= 2,
	.cvdd_min	= 1200000,
	.cvdd_max	= 1320000,
};

static const struct da850_opp da850_opp_200 = {
	.freq		= 200000,
	.prediv		= 1,
	.mult		= 25,
	.postdiv	= 3,
	.cvdd_min	= 1100000,
	.cvdd_max	= 1160000,
};

static const struct da850_opp da850_opp_96 = {
	.freq		= 96000,
	.prediv		= 1,
	.mult		= 20,
	.postdiv	= 5,
	.cvdd_min	= 1000000,
	.cvdd_max	= 1050000,
};

#define OPP(freq) 		\
	{				\
		.index = (unsigned int) &da850_opp_##freq,	\
		.frequency = freq * 1000, \
	}

static struct cpufreq_frequency_table da850_freq_table[] = {
	OPP(456),
	OPP(408),
	OPP(372),
	OPP(300),
	OPP(200),
	OPP(96),
	{
		.index		= 0,
		.frequency	= CPUFREQ_TABLE_END,
	},
};

#ifdef CONFIG_REGULATOR
static int da850_set_voltage(unsigned int index);
static int da850_regulator_init(void);
#endif

static struct davinci_cpufreq_config cpufreq_info = {
	.freq_table = da850_freq_table,
#ifdef CONFIG_REGULATOR
	.init = da850_regulator_init,
	.set_voltage = da850_set_voltage,
#endif
};

#ifdef CONFIG_REGULATOR
static struct regulator *cvdd;

static int da850_set_voltage(unsigned int index)
{
	struct da850_opp *opp;

	if (!cvdd)
		return -ENODEV;

	opp = (struct da850_opp *) cpufreq_info.freq_table[index].index;

	return regulator_set_voltage(cvdd, opp->cvdd_min, opp->cvdd_max);
}

static int da850_regulator_init(void)
{
	cvdd = regulator_get(NULL, "cvdd");
	if (WARN(IS_ERR(cvdd), "Unable to obtain voltage regulator for CVDD;"
					" voltage scaling unsupported\n")) {
		return PTR_ERR(cvdd);
	}

	return 0;
}
#endif

static struct platform_device da850_cpufreq_device = {
	.name			= "cpufreq-davinci",
	.dev = {
		.platform_data	= &cpufreq_info,
	},
	.id = -1,
};

unsigned int da850_max_speed = 300000;

int __init da850_register_cpufreq(char *async_clk)
{
	int i;

	/* cpufreq driver can help keep an "async" clock constant */
	if (async_clk)
		clk_add_alias("async", da850_cpufreq_device.name,
							async_clk, NULL);
	for (i = 0; i < ARRAY_SIZE(da850_freq_table); i++) {
		if (da850_freq_table[i].frequency <= da850_max_speed) {
			cpufreq_info.freq_table = &da850_freq_table[i];
			break;
		}
	}

	return platform_device_register(&da850_cpufreq_device);
}

static int da850_round_armrate(struct clk *clk, unsigned long rate)
{
	int i, ret = 0, diff;
	unsigned int best = (unsigned int) -1;
	struct cpufreq_frequency_table *table = cpufreq_info.freq_table;

	rate /= 1000; /* convert to kHz */

	for (i = 0; table[i].frequency != CPUFREQ_TABLE_END; i++) {
		diff = table[i].frequency - rate;
		if (diff < 0)
			diff = -diff;

		if (diff < best) {
			best = diff;
			ret = table[i].frequency;
		}
	}

	return ret * 1000;
}

static int da850_set_armrate(struct clk *clk, unsigned long index)
{
	struct clk *pllclk = &pll0_clk;

	return clk_set_rate(pllclk, index);
}

static int da850_set_pll0rate(struct clk *clk, unsigned long index)
{
	unsigned int prediv, mult, postdiv;
	struct da850_opp *opp;
	struct pll_data *pll = clk->pll_data;
	int ret;

	opp = (struct da850_opp *) cpufreq_info.freq_table[index].index;
	prediv = opp->prediv;
	mult = opp->mult;
	postdiv = opp->postdiv;

	ret = davinci_set_pllrate(pll, prediv, mult, postdiv);
	if (WARN_ON(ret))
		return ret;

	return 0;
}
#else
int __init da850_register_cpufreq(char *async_clk)
{
	return 0;
}

static int da850_set_armrate(struct clk *clk, unsigned long rate)
{
	return -EINVAL;
}

static int da850_set_pll0rate(struct clk *clk, unsigned long armrate)
{
	return -EINVAL;
}

static int da850_round_armrate(struct clk *clk, unsigned long rate)
{
	return clk->rate;
}
#endif

int da850_register_pm(struct platform_device *pdev)
{
	int ret;
	struct davinci_pm_config *pdata = pdev->dev.platform_data;

	ret = davinci_cfg_reg(DA850_RTC_ALARM);
	if (ret)
		return ret;

	pdata->ddr2_ctlr_base = da8xx_get_mem_ctlr();
	pdata->deepsleep_reg = DA8XX_SYSCFG1_VIRT(DA8XX_DEEPSLEEP_REG);
	pdata->ddrpsc_num = DA8XX_LPSC1_EMIF3C;

	pdata->cpupll_reg_base = ioremap(DA8XX_PLL0_BASE, SZ_4K);
	if (!pdata->cpupll_reg_base)
		return -ENOMEM;

	pdata->ddrpll_reg_base = ioremap(DA8XX_PLL1_BASE, SZ_4K);
	if (!pdata->ddrpll_reg_base) {
		ret = -ENOMEM;
		goto no_ddrpll_mem;
	}

	pdata->ddrpsc_reg_base = ioremap(DA8XX_PSC1_BASE, SZ_4K);
	if (!pdata->ddrpsc_reg_base) {
		ret = -ENOMEM;
		goto no_ddrpsc_mem;
	}

	return platform_device_register(pdev);

no_ddrpsc_mem:
	iounmap(pdata->ddrpll_reg_base);
no_ddrpll_mem:
	iounmap(pdata->cpupll_reg_base);
	return ret;
}

static struct davinci_soc_info davinci_soc_info_da850 = {
	.io_desc		= da850_io_desc,
	.io_desc_num		= ARRAY_SIZE(da850_io_desc),
	.jtag_id_reg		= DA8XX_SYSCFG0_BASE + DA8XX_JTAG_ID_REG,
	.ids			= da850_ids,
	.ids_num		= ARRAY_SIZE(da850_ids),
	.cpu_clks		= da850_clks,
	.psc_bases		= da850_psc_bases,
	.psc_bases_num		= ARRAY_SIZE(da850_psc_bases),
	.pinmux_base		= DA8XX_SYSCFG0_BASE + 0x120,
	.pinmux_pins		= da850_pins,
	.pinmux_pins_num	= ARRAY_SIZE(da850_pins),
	.intc_base		= DA8XX_CP_INTC_BASE,
	.intc_type		= DAVINCI_INTC_TYPE_CP_INTC,
	.intc_irq_prios		= da850_default_priorities,
	.intc_irq_num		= DA850_N_CP_INTC_IRQ,
	.timer_info		= &da850_timer_info,
	.gpio_type		= GPIO_TYPE_DAVINCI,
	.gpio_base		= DA8XX_GPIO_BASE,
	.gpio_num		= 144,
	.gpio_irq		= IRQ_DA8XX_GPIO0,
	.serial_dev		= &da8xx_serial_device,
	.emac_pdata		= &da8xx_emac_pdata,
	.sram_dma		= DA8XX_ARM_RAM_BASE,
	.sram_len		= SZ_8K,
	.reset_device		= &da8xx_wdt_device,
};

void __init da850_init(void)
{
	unsigned int v;

	davinci_common_init(&davinci_soc_info_da850);

	da8xx_syscfg0_base = ioremap(DA8XX_SYSCFG0_BASE, SZ_4K);
	if (WARN(!da8xx_syscfg0_base, "Unable to map syscfg0 module"))
		return;

	da8xx_syscfg1_base = ioremap(DA8XX_SYSCFG1_BASE, SZ_4K);
	if (WARN(!da8xx_syscfg1_base, "Unable to map syscfg1 module"))
		return;

	/*
	 * Move the clock source of Async3 domain to PLL1 SYSCLK2.
	 * This helps keeping the peripherals on this domain insulated
	 * from CPU frequency changes caused by DVFS. The firmware sets
	 * both PLL0 and PLL1 to the same frequency so, there should not
	 * be any noticible change even in non-DVFS use cases.
	 */
	da850_set_async3_src(1);

	/* Unlock writing to PLL0 registers */
	v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));
	v &= ~CFGCHIP0_PLL_MASTER_LOCK;
	__raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP0_REG));

	/* Unlock writing to PLL1 registers */
	v = __raw_readl(DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
	v &= ~CFGCHIP3_PLL1_MASTER_LOCK;
	__raw_writel(v, DA8XX_SYSCFG0_VIRT(DA8XX_CFGCHIP3_REG));
}