sound/soc/sh/rcar/gen.c - maze/linux - Git at Google

 /*
  * Renesas R-Car Gen1 SRU/SSI support
  *
  * Copyright (C) 2013 Renesas Solutions Corp.
  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
 #include "rsnd.h"

 struct rsnd_gen {
 	void __iomem *base[RSND_BASE_MAX];

 	struct rsnd_gen_ops *ops;

 	struct regmap *regmap;
 	struct regmap_field *regs[RSND_REG_MAX];
 };

 #define rsnd_priv_to_gen(p)	((struct rsnd_gen *)(p)->gen)

 #define RSND_REG_SET(gen, id, reg_id, offset, _id_offset, _id_size)	\
 	[id] = {							\
 		.reg = (unsigned int)gen->base[reg_id] + offset,	\
 		.lsb = 0,						\
 		.msb = 31,						\
 		.id_size = _id_size,					\
 		.id_offset = _id_offset,				\
 	}

 /*
  *		basic function
  */
 static int rsnd_regmap_write32(void *context, const void *_data, size_t count)
 {
 	struct rsnd_priv *priv = context;
 	struct device *dev = rsnd_priv_to_dev(priv);
 	u32 *data = (u32 *)_data;
 	u32 val = data[1];
 	void __iomem *reg = (void *)data[0];

 	iowrite32(val, reg);

 	dev_dbg(dev, "w %p : %08x\n", reg, val);

 	return 0;
 }

 static int rsnd_regmap_read32(void *context,
 			      const void *_data, size_t reg_size,
 			      void *_val, size_t val_size)
 {
 	struct rsnd_priv *priv = context;
 	struct device *dev = rsnd_priv_to_dev(priv);
 	u32 *data = (u32 *)_data;
 	u32 *val = (u32 *)_val;
 	void __iomem *reg = (void *)data[0];

 	*val = ioread32(reg);

 	dev_dbg(dev, "r %p : %08x\n", reg, *val);

 	return 0;
 }

 static struct regmap_bus rsnd_regmap_bus = {
 	.write				= rsnd_regmap_write32,
 	.read				= rsnd_regmap_read32,
 	.reg_format_endian_default	= REGMAP_ENDIAN_NATIVE,
 	.val_format_endian_default	= REGMAP_ENDIAN_NATIVE,
 };

 static int rsnd_is_accessible_reg(struct rsnd_priv *priv,
 				  struct rsnd_gen *gen, enum rsnd_reg reg)
 {
 	if (!gen->regs[reg]) {
 		struct device *dev = rsnd_priv_to_dev(priv);

 		dev_err(dev, "unsupported register access %x\n", reg);
 		return 0;
 	}

 	return 1;
 }

 u32 rsnd_read(struct rsnd_priv *priv,
 	      struct rsnd_mod *mod, enum rsnd_reg reg)
 {
 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
 	u32 val;

 	if (!rsnd_is_accessible_reg(priv, gen, reg))
 		return 0;

 	regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val);

 	return val;
 }

 void rsnd_write(struct rsnd_priv *priv,
 		struct rsnd_mod *mod,
 		enum rsnd_reg reg, u32 data)
 {
 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);

 	if (!rsnd_is_accessible_reg(priv, gen, reg))
 		return;

 	regmap_fields_write(gen->regs[reg], rsnd_mod_id(mod), data);
 }

 void rsnd_bset(struct rsnd_priv *priv, struct rsnd_mod *mod,
 	       enum rsnd_reg reg, u32 mask, u32 data)
 {
 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);

 	if (!rsnd_is_accessible_reg(priv, gen, reg))
 		return;

 	regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod),
 				  mask, data);
 }

 static int rsnd_gen_regmap_init(struct rsnd_priv *priv,
 				struct rsnd_gen  *gen,
 				struct reg_field *regf)
 {
 	int i;
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct regmap_config regc;

 	memset(&regc, 0, sizeof(regc));
 	regc.reg_bits = 32;
 	regc.val_bits = 32;

 	gen->regmap = devm_regmap_init(dev, &rsnd_regmap_bus, priv, &regc);
 	if (IS_ERR(gen->regmap)) {
 		dev_err(dev, "regmap error %ld\n", PTR_ERR(gen->regmap));
 		return PTR_ERR(gen->regmap);
 	}

 	for (i = 0; i < RSND_REG_MAX; i++) {
 		gen->regs[i] = NULL;
 		if (!regf[i].reg)
 			continue;

 		gen->regs[i] = devm_regmap_field_alloc(dev, gen->regmap, regf[i]);
 		if (IS_ERR(gen->regs[i]))
 			return PTR_ERR(gen->regs[i]);

 	}

 	return 0;
 }

 /*
  *		Gen2
  */

 /* single address mapping */
 #define RSND_GEN2_S_REG(gen, reg, id, offset)				\
 	RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN2_##reg, offset, 0, 10)

 /* multi address mapping */
 #define RSND_GEN2_M_REG(gen, reg, id, offset, _id_offset)		\
 	RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN2_##reg, offset, _id_offset, 10)

 static int rsnd_gen2_regmap_init(struct rsnd_priv *priv, struct rsnd_gen *gen)
 {
 	struct reg_field regf[RSND_REG_MAX] = {
 		RSND_GEN2_S_REG(gen, SSIU,	SSI_MODE0,	0x800),
 		RSND_GEN2_S_REG(gen, SSIU,	SSI_MODE1,	0x804),
 		/* FIXME: it needs SSI_MODE2/3 in the future */
 		RSND_GEN2_M_REG(gen, SSIU,	SSI_BUSIF_MODE,	0x0,	0x80),
 		RSND_GEN2_M_REG(gen, SSIU,	SSI_BUSIF_ADINR,0x4,	0x80),
 		RSND_GEN2_M_REG(gen, SSIU,	SSI_CTRL,	0x10,	0x80),
 		RSND_GEN2_M_REG(gen, SSIU,	INT_ENABLE,	0x18,	0x80),

 		RSND_GEN2_M_REG(gen, SCU,	SRC_BUSIF_MODE,	0x0,	0x20),
 		RSND_GEN2_M_REG(gen, SCU,	SRC_ROUTE_MODE0,0xc,	0x20),
 		RSND_GEN2_M_REG(gen, SCU,	SRC_CTRL,	0x10,	0x20),
 		RSND_GEN2_M_REG(gen, SCU,	SRC_SWRSR,	0x200,	0x40),
 		RSND_GEN2_M_REG(gen, SCU,	SRC_SRCIR,	0x204,	0x40),
 		RSND_GEN2_M_REG(gen, SCU,	SRC_ADINR,	0x214,	0x40),
 		RSND_GEN2_M_REG(gen, SCU,	SRC_IFSCR,	0x21c,	0x40),
 		RSND_GEN2_M_REG(gen, SCU,	SRC_IFSVR,	0x220,	0x40),
 		RSND_GEN2_M_REG(gen, SCU,	SRC_SRCCR,	0x224,	0x40),
 		RSND_GEN2_M_REG(gen, SCU,	SRC_BSDSR,	0x22c,	0x40),
 		RSND_GEN2_M_REG(gen, SCU,	SRC_BSISR,	0x238,	0x40),

 		RSND_GEN2_S_REG(gen, ADG,	BRRA,		0x00),
 		RSND_GEN2_S_REG(gen, ADG,	BRRB,		0x04),
 		RSND_GEN2_S_REG(gen, ADG,	SSICKR,		0x08),
 		RSND_GEN2_S_REG(gen, ADG,	AUDIO_CLK_SEL0,	0x0c),
 		RSND_GEN2_S_REG(gen, ADG,	AUDIO_CLK_SEL1,	0x10),
 		RSND_GEN2_S_REG(gen, ADG,	AUDIO_CLK_SEL2,	0x14),
 		RSND_GEN2_S_REG(gen, ADG,	DIV_EN,		0x30),
 		RSND_GEN2_S_REG(gen, ADG,	SRCIN_TIMSEL0,	0x34),
 		RSND_GEN2_S_REG(gen, ADG,	SRCIN_TIMSEL1,	0x38),
 		RSND_GEN2_S_REG(gen, ADG,	SRCIN_TIMSEL2,	0x3c),
 		RSND_GEN2_S_REG(gen, ADG,	SRCIN_TIMSEL3,	0x40),
 		RSND_GEN2_S_REG(gen, ADG,	SRCIN_TIMSEL4,	0x44),
 		RSND_GEN2_S_REG(gen, ADG,	SRCOUT_TIMSEL0,	0x48),
 		RSND_GEN2_S_REG(gen, ADG,	SRCOUT_TIMSEL1,	0x4c),
 		RSND_GEN2_S_REG(gen, ADG,	SRCOUT_TIMSEL2,	0x50),
 		RSND_GEN2_S_REG(gen, ADG,	SRCOUT_TIMSEL3,	0x54),
 		RSND_GEN2_S_REG(gen, ADG,	SRCOUT_TIMSEL4,	0x58),

 		RSND_GEN2_M_REG(gen, SSI,	SSICR,		0x00,	0x40),
 		RSND_GEN2_M_REG(gen, SSI,	SSISR,		0x04,	0x40),
 		RSND_GEN2_M_REG(gen, SSI,	SSITDR,		0x08,	0x40),
 		RSND_GEN2_M_REG(gen, SSI,	SSIRDR,		0x0c,	0x40),
 		RSND_GEN2_M_REG(gen, SSI,	SSIWSR,		0x20,	0x40),
 	};

 	return rsnd_gen_regmap_init(priv, gen, regf);
 }

 static int rsnd_gen2_probe(struct platform_device *pdev,
 			   struct rsnd_priv *priv)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
 	struct resource *scu_res;
 	struct resource *adg_res;
 	struct resource *ssiu_res;
 	struct resource *ssi_res;
 	int ret;

 	/*
 	 * map address
 	 */
 	scu_res  = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_SCU);
 	adg_res  = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_ADG);
 	ssiu_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_SSIU);
 	ssi_res  = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_SSI);

 	gen->base[RSND_GEN2_SCU]  = devm_ioremap_resource(dev, scu_res);
 	gen->base[RSND_GEN2_ADG]  = devm_ioremap_resource(dev, adg_res);
 	gen->base[RSND_GEN2_SSIU] = devm_ioremap_resource(dev, ssiu_res);
 	gen->base[RSND_GEN2_SSI]  = devm_ioremap_resource(dev, ssi_res);
 	if (IS_ERR(gen->base[RSND_GEN2_SCU])  ||
 	    IS_ERR(gen->base[RSND_GEN2_ADG])  ||
 	    IS_ERR(gen->base[RSND_GEN2_SSIU]) ||
 	    IS_ERR(gen->base[RSND_GEN2_SSI]))
 		return -ENODEV;

 	ret = rsnd_gen2_regmap_init(priv, gen);
 	if (ret < 0)
 		return ret;

 	dev_dbg(dev, "Gen2 device probed\n");
 	dev_dbg(dev, "SCU  : %08x => %p\n", scu_res->start,
 		gen->base[RSND_GEN2_SCU]);
 	dev_dbg(dev, "ADG  : %08x => %p\n", adg_res->start,
 		gen->base[RSND_GEN2_ADG]);
 	dev_dbg(dev, "SSIU : %08x => %p\n", ssiu_res->start,
 		gen->base[RSND_GEN2_SSIU]);
 	dev_dbg(dev, "SSI  : %08x => %p\n", ssi_res->start,
 		gen->base[RSND_GEN2_SSI]);

 	return 0;
 }

 /*
  *		Gen1
  */

 /* single address mapping */
 #define RSND_GEN1_S_REG(gen, reg, id, offset)	\
 	RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN1_##reg, offset, 0, 9)

 /* multi address mapping */
 #define RSND_GEN1_M_REG(gen, reg, id, offset, _id_offset)	\
 	RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN1_##reg, offset, _id_offset, 9)

 static int rsnd_gen1_regmap_init(struct rsnd_priv *priv, struct rsnd_gen *gen)
 {
 	struct reg_field regf[RSND_REG_MAX] = {
 		RSND_GEN1_S_REG(gen, SRU,	SRC_ROUTE_SEL,	0x00),
 		RSND_GEN1_S_REG(gen, SRU,	SRC_TMG_SEL0,	0x08),
 		RSND_GEN1_S_REG(gen, SRU,	SRC_TMG_SEL1,	0x0c),
 		RSND_GEN1_S_REG(gen, SRU,	SRC_TMG_SEL2,	0x10),
 		RSND_GEN1_S_REG(gen, SRU,	SRC_ROUTE_CTRL,	0xc0),
 		RSND_GEN1_S_REG(gen, SRU,	SSI_MODE0,	0xD0),
 		RSND_GEN1_S_REG(gen, SRU,	SSI_MODE1,	0xD4),
 		RSND_GEN1_M_REG(gen, SRU,	SRC_BUSIF_MODE,	0x20,	0x4),
 		RSND_GEN1_M_REG(gen, SRU,	SRC_ROUTE_MODE0,0x50,	0x8),
 		RSND_GEN1_M_REG(gen, SRU,	SRC_SWRSR,	0x200,	0x40),
 		RSND_GEN1_M_REG(gen, SRU,	SRC_SRCIR,	0x204,	0x40),
 		RSND_GEN1_M_REG(gen, SRU,	SRC_ADINR,	0x214,	0x40),
 		RSND_GEN1_M_REG(gen, SRU,	SRC_IFSCR,	0x21c,	0x40),
 		RSND_GEN1_M_REG(gen, SRU,	SRC_IFSVR,	0x220,	0x40),
 		RSND_GEN1_M_REG(gen, SRU,	SRC_SRCCR,	0x224,	0x40),
 		RSND_GEN1_M_REG(gen, SRU,	SRC_MNFSR,	0x228,	0x40),

 		RSND_GEN1_S_REG(gen, ADG,	BRRA,		0x00),
 		RSND_GEN1_S_REG(gen, ADG,	BRRB,		0x04),
 		RSND_GEN1_S_REG(gen, ADG,	SSICKR,		0x08),
 		RSND_GEN1_S_REG(gen, ADG,	AUDIO_CLK_SEL0,	0x0c),
 		RSND_GEN1_S_REG(gen, ADG,	AUDIO_CLK_SEL1,	0x10),
 		RSND_GEN1_S_REG(gen, ADG,	AUDIO_CLK_SEL3,	0x18),
 		RSND_GEN1_S_REG(gen, ADG,	AUDIO_CLK_SEL4,	0x1c),
 		RSND_GEN1_S_REG(gen, ADG,	AUDIO_CLK_SEL5,	0x20),

 		RSND_GEN1_M_REG(gen, SSI,	SSICR,		0x00,	0x40),
 		RSND_GEN1_M_REG(gen, SSI,	SSISR,		0x04,	0x40),
 		RSND_GEN1_M_REG(gen, SSI,	SSITDR,		0x08,	0x40),
 		RSND_GEN1_M_REG(gen, SSI,	SSIRDR,		0x0c,	0x40),
 		RSND_GEN1_M_REG(gen, SSI,	SSIWSR,		0x20,	0x40),
 	};

 	return rsnd_gen_regmap_init(priv, gen, regf);
 }

 static int rsnd_gen1_probe(struct platform_device *pdev,
 			   struct rsnd_priv *priv)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
 	struct resource *sru_res;
 	struct resource *adg_res;
 	struct resource *ssi_res;
 	int ret;

 	/*
 	 * map address
 	 */
 	sru_res	= platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_SRU);
 	adg_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_ADG);
 	ssi_res	= platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_SSI);

 	gen->base[RSND_GEN1_SRU] = devm_ioremap_resource(dev, sru_res);
 	gen->base[RSND_GEN1_ADG] = devm_ioremap_resource(dev, adg_res);
 	gen->base[RSND_GEN1_SSI] = devm_ioremap_resource(dev, ssi_res);
 	if (IS_ERR(gen->base[RSND_GEN1_SRU]) ||
 	    IS_ERR(gen->base[RSND_GEN1_ADG]) ||
 	    IS_ERR(gen->base[RSND_GEN1_SSI]))
 		return -ENODEV;

 	ret = rsnd_gen1_regmap_init(priv, gen);
 	if (ret < 0)
 		return ret;

 	dev_dbg(dev, "Gen1 device probed\n");
 	dev_dbg(dev, "SRU : %08x => %p\n",	sru_res->start,
 						gen->base[RSND_GEN1_SRU]);
 	dev_dbg(dev, "ADG : %08x => %p\n",	adg_res->start,
 						gen->base[RSND_GEN1_ADG]);
 	dev_dbg(dev, "SSI : %08x => %p\n",	ssi_res->start,
 						gen->base[RSND_GEN1_SSI]);

 	return 0;

 }

 /*
  *		Gen
  */
 static void rsnd_of_parse_gen(struct platform_device *pdev,
 			      const struct rsnd_of_data *of_data,
 			      struct rsnd_priv *priv)
 {
 	struct rcar_snd_info *info = priv->info;

 	if (!of_data)
 		return;

 	info->flags = of_data->flags;
 }

 int rsnd_gen_probe(struct platform_device *pdev,
 		   const struct rsnd_of_data *of_data,
 		   struct rsnd_priv *priv)
 {
 	struct device *dev = rsnd_priv_to_dev(priv);
 	struct rsnd_gen *gen;
 	int ret;

 	rsnd_of_parse_gen(pdev, of_data, priv);

 	gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
 	if (!gen) {
 		dev_err(dev, "GEN allocate failed\n");
 		return -ENOMEM;
 	}

 	priv->gen = gen;

 	ret = -ENODEV;
 	if (rsnd_is_gen1(priv))
 		ret = rsnd_gen1_probe(pdev, priv);
 	else if (rsnd_is_gen2(priv))
 		ret = rsnd_gen2_probe(pdev, priv);

 	if (ret < 0)
 		dev_err(dev, "unknown generation R-Car sound device\n");

 	return ret;
 }
	/*
	* Renesas R-Car Gen1 SRU/SSI support
	*
	* Copyright (C) 2013 Renesas Solutions Corp.
	* Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 2 as
	* published by the Free Software Foundation.
	*/
	#include "rsnd.h"

	struct rsnd_gen {
	void __iomem *base[RSND_BASE_MAX];

	struct rsnd_gen_ops *ops;

	struct regmap *regmap;
	struct regmap_field *regs[RSND_REG_MAX];
	};

	#define rsnd_priv_to_gen(p) ((struct rsnd_gen *)(p)->gen)

	#define RSND_REG_SET(gen, id, reg_id, offset, _id_offset, _id_size) \
	[id] = { \
	.reg = (unsigned int)gen->base[reg_id] + offset, \
	.lsb = 0, \
	.msb = 31, \
	.id_size = _id_size, \
	.id_offset = _id_offset, \
	}

	/*
	* basic function
	*/
	static int rsnd_regmap_write32(void context, const void _data, size_t count)
	{
	struct rsnd_priv *priv = context;
	struct device *dev = rsnd_priv_to_dev(priv);
	u32 data = (u32 )_data;
	u32 val = data[1];
	void __iomem reg = (void )data[0];

	iowrite32(val, reg);

	dev_dbg(dev, "w %p : %08x\n", reg, val);

	return 0;
	}

	static int rsnd_regmap_read32(void *context,
	const void *_data, size_t reg_size,
	void *_val, size_t val_size)
	{
	struct rsnd_priv *priv = context;
	struct device *dev = rsnd_priv_to_dev(priv);
	u32 data = (u32 )_data;
	u32 val = (u32 )_val;
	void __iomem reg = (void )data[0];

	*val = ioread32(reg);

	dev_dbg(dev, "r %p : %08x\n", reg, *val);

	return 0;
	}

	static struct regmap_bus rsnd_regmap_bus = {
	.write = rsnd_regmap_write32,
	.read = rsnd_regmap_read32,
	.reg_format_endian_default = REGMAP_ENDIAN_NATIVE,
	.val_format_endian_default = REGMAP_ENDIAN_NATIVE,
	};

	static int rsnd_is_accessible_reg(struct rsnd_priv *priv,
	struct rsnd_gen *gen, enum rsnd_reg reg)
	{
	if (!gen->regs[reg]) {
	struct device *dev = rsnd_priv_to_dev(priv);

	dev_err(dev, "unsupported register access %x\n", reg);
	return 0;
	}

	return 1;
	}

	u32 rsnd_read(struct rsnd_priv *priv,
	struct rsnd_mod *mod, enum rsnd_reg reg)
	{
	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
	u32 val;

	if (!rsnd_is_accessible_reg(priv, gen, reg))
	return 0;

	regmap_fields_read(gen->regs[reg], rsnd_mod_id(mod), &val);

	return val;
	}

	void rsnd_write(struct rsnd_priv *priv,
	struct rsnd_mod *mod,
	enum rsnd_reg reg, u32 data)
	{
	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);

	if (!rsnd_is_accessible_reg(priv, gen, reg))
	return;

	regmap_fields_write(gen->regs[reg], rsnd_mod_id(mod), data);
	}

	void rsnd_bset(struct rsnd_priv priv, struct rsnd_mod mod,
	enum rsnd_reg reg, u32 mask, u32 data)
	{
	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);

	if (!rsnd_is_accessible_reg(priv, gen, reg))
	return;

	regmap_fields_update_bits(gen->regs[reg], rsnd_mod_id(mod),
	mask, data);
	}

	static int rsnd_gen_regmap_init(struct rsnd_priv *priv,
	struct rsnd_gen *gen,
	struct reg_field *regf)
	{
	int i;
	struct device *dev = rsnd_priv_to_dev(priv);
	struct regmap_config regc;

	memset(&regc, 0, sizeof(regc));
	regc.reg_bits = 32;
	regc.val_bits = 32;

	gen->regmap = devm_regmap_init(dev, &rsnd_regmap_bus, priv, &regc);
	if (IS_ERR(gen->regmap)) {
	dev_err(dev, "regmap error %ld\n", PTR_ERR(gen->regmap));
	return PTR_ERR(gen->regmap);
	}

	for (i = 0; i < RSND_REG_MAX; i++) {
	gen->regs[i] = NULL;
	if (!regf[i].reg)
	continue;

	gen->regs[i] = devm_regmap_field_alloc(dev, gen->regmap, regf[i]);
	if (IS_ERR(gen->regs[i]))
	return PTR_ERR(gen->regs[i]);

	}

	return 0;
	}

	/*
	* Gen2
	*/

	/* single address mapping */
	#define RSND_GEN2_S_REG(gen, reg, id, offset) \
	RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN2_##reg, offset, 0, 10)

	/* multi address mapping */
	#define RSND_GEN2_M_REG(gen, reg, id, offset, _id_offset) \
	RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN2_##reg, offset, _id_offset, 10)

	static int rsnd_gen2_regmap_init(struct rsnd_priv priv, struct rsnd_gen gen)
	{
	struct reg_field regf[RSND_REG_MAX] = {
	RSND_GEN2_S_REG(gen, SSIU, SSI_MODE0, 0x800),
	RSND_GEN2_S_REG(gen, SSIU, SSI_MODE1, 0x804),
	/* FIXME: it needs SSI_MODE2/3 in the future */
	RSND_GEN2_M_REG(gen, SSIU, SSI_BUSIF_MODE, 0x0, 0x80),
	RSND_GEN2_M_REG(gen, SSIU, SSI_BUSIF_ADINR,0x4, 0x80),
	RSND_GEN2_M_REG(gen, SSIU, SSI_CTRL, 0x10, 0x80),
	RSND_GEN2_M_REG(gen, SSIU, INT_ENABLE, 0x18, 0x80),

	RSND_GEN2_M_REG(gen, SCU, SRC_BUSIF_MODE, 0x0, 0x20),
	RSND_GEN2_M_REG(gen, SCU, SRC_ROUTE_MODE0,0xc, 0x20),
	RSND_GEN2_M_REG(gen, SCU, SRC_CTRL, 0x10, 0x20),
	RSND_GEN2_M_REG(gen, SCU, SRC_SWRSR, 0x200, 0x40),
	RSND_GEN2_M_REG(gen, SCU, SRC_SRCIR, 0x204, 0x40),
	RSND_GEN2_M_REG(gen, SCU, SRC_ADINR, 0x214, 0x40),
	RSND_GEN2_M_REG(gen, SCU, SRC_IFSCR, 0x21c, 0x40),
	RSND_GEN2_M_REG(gen, SCU, SRC_IFSVR, 0x220, 0x40),
	RSND_GEN2_M_REG(gen, SCU, SRC_SRCCR, 0x224, 0x40),
	RSND_GEN2_M_REG(gen, SCU, SRC_BSDSR, 0x22c, 0x40),
	RSND_GEN2_M_REG(gen, SCU, SRC_BSISR, 0x238, 0x40),

	RSND_GEN2_S_REG(gen, ADG, BRRA, 0x00),
	RSND_GEN2_S_REG(gen, ADG, BRRB, 0x04),
	RSND_GEN2_S_REG(gen, ADG, SSICKR, 0x08),
	RSND_GEN2_S_REG(gen, ADG, AUDIO_CLK_SEL0, 0x0c),
	RSND_GEN2_S_REG(gen, ADG, AUDIO_CLK_SEL1, 0x10),
	RSND_GEN2_S_REG(gen, ADG, AUDIO_CLK_SEL2, 0x14),
	RSND_GEN2_S_REG(gen, ADG, DIV_EN, 0x30),
	RSND_GEN2_S_REG(gen, ADG, SRCIN_TIMSEL0, 0x34),
	RSND_GEN2_S_REG(gen, ADG, SRCIN_TIMSEL1, 0x38),
	RSND_GEN2_S_REG(gen, ADG, SRCIN_TIMSEL2, 0x3c),
	RSND_GEN2_S_REG(gen, ADG, SRCIN_TIMSEL3, 0x40),
	RSND_GEN2_S_REG(gen, ADG, SRCIN_TIMSEL4, 0x44),
	RSND_GEN2_S_REG(gen, ADG, SRCOUT_TIMSEL0, 0x48),
	RSND_GEN2_S_REG(gen, ADG, SRCOUT_TIMSEL1, 0x4c),
	RSND_GEN2_S_REG(gen, ADG, SRCOUT_TIMSEL2, 0x50),
	RSND_GEN2_S_REG(gen, ADG, SRCOUT_TIMSEL3, 0x54),
	RSND_GEN2_S_REG(gen, ADG, SRCOUT_TIMSEL4, 0x58),

	RSND_GEN2_M_REG(gen, SSI, SSICR, 0x00, 0x40),
	RSND_GEN2_M_REG(gen, SSI, SSISR, 0x04, 0x40),
	RSND_GEN2_M_REG(gen, SSI, SSITDR, 0x08, 0x40),
	RSND_GEN2_M_REG(gen, SSI, SSIRDR, 0x0c, 0x40),
	RSND_GEN2_M_REG(gen, SSI, SSIWSR, 0x20, 0x40),
	};

	return rsnd_gen_regmap_init(priv, gen, regf);
	}

	static int rsnd_gen2_probe(struct platform_device *pdev,
	struct rsnd_priv *priv)
	{
	struct device *dev = rsnd_priv_to_dev(priv);
	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
	struct resource *scu_res;
	struct resource *adg_res;
	struct resource *ssiu_res;
	struct resource *ssi_res;
	int ret;

	/*
	* map address
	*/
	scu_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_SCU);
	adg_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_ADG);
	ssiu_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_SSIU);
	ssi_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN2_SSI);

	gen->base[RSND_GEN2_SCU] = devm_ioremap_resource(dev, scu_res);
	gen->base[RSND_GEN2_ADG] = devm_ioremap_resource(dev, adg_res);
	gen->base[RSND_GEN2_SSIU] = devm_ioremap_resource(dev, ssiu_res);
	gen->base[RSND_GEN2_SSI] = devm_ioremap_resource(dev, ssi_res);
	if (IS_ERR(gen->base[RSND_GEN2_SCU]) \|\|
	IS_ERR(gen->base[RSND_GEN2_ADG]) \|\|
	IS_ERR(gen->base[RSND_GEN2_SSIU]) \|\|
	IS_ERR(gen->base[RSND_GEN2_SSI]))
	return -ENODEV;

	ret = rsnd_gen2_regmap_init(priv, gen);
	if (ret < 0)
	return ret;

	dev_dbg(dev, "Gen2 device probed\n");
	dev_dbg(dev, "SCU : %08x => %p\n", scu_res->start,
	gen->base[RSND_GEN2_SCU]);
	dev_dbg(dev, "ADG : %08x => %p\n", adg_res->start,
	gen->base[RSND_GEN2_ADG]);
	dev_dbg(dev, "SSIU : %08x => %p\n", ssiu_res->start,
	gen->base[RSND_GEN2_SSIU]);
	dev_dbg(dev, "SSI : %08x => %p\n", ssi_res->start,
	gen->base[RSND_GEN2_SSI]);

	return 0;
	}

	/*
	* Gen1
	*/

	/* single address mapping */
	#define RSND_GEN1_S_REG(gen, reg, id, offset) \
	RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN1_##reg, offset, 0, 9)

	/* multi address mapping */
	#define RSND_GEN1_M_REG(gen, reg, id, offset, _id_offset) \
	RSND_REG_SET(gen, RSND_REG_##id, RSND_GEN1_##reg, offset, _id_offset, 9)

	static int rsnd_gen1_regmap_init(struct rsnd_priv priv, struct rsnd_gen gen)
	{
	struct reg_field regf[RSND_REG_MAX] = {
	RSND_GEN1_S_REG(gen, SRU, SRC_ROUTE_SEL, 0x00),
	RSND_GEN1_S_REG(gen, SRU, SRC_TMG_SEL0, 0x08),
	RSND_GEN1_S_REG(gen, SRU, SRC_TMG_SEL1, 0x0c),
	RSND_GEN1_S_REG(gen, SRU, SRC_TMG_SEL2, 0x10),
	RSND_GEN1_S_REG(gen, SRU, SRC_ROUTE_CTRL, 0xc0),
	RSND_GEN1_S_REG(gen, SRU, SSI_MODE0, 0xD0),
	RSND_GEN1_S_REG(gen, SRU, SSI_MODE1, 0xD4),
	RSND_GEN1_M_REG(gen, SRU, SRC_BUSIF_MODE, 0x20, 0x4),
	RSND_GEN1_M_REG(gen, SRU, SRC_ROUTE_MODE0,0x50, 0x8),
	RSND_GEN1_M_REG(gen, SRU, SRC_SWRSR, 0x200, 0x40),
	RSND_GEN1_M_REG(gen, SRU, SRC_SRCIR, 0x204, 0x40),
	RSND_GEN1_M_REG(gen, SRU, SRC_ADINR, 0x214, 0x40),
	RSND_GEN1_M_REG(gen, SRU, SRC_IFSCR, 0x21c, 0x40),
	RSND_GEN1_M_REG(gen, SRU, SRC_IFSVR, 0x220, 0x40),
	RSND_GEN1_M_REG(gen, SRU, SRC_SRCCR, 0x224, 0x40),
	RSND_GEN1_M_REG(gen, SRU, SRC_MNFSR, 0x228, 0x40),

	RSND_GEN1_S_REG(gen, ADG, BRRA, 0x00),
	RSND_GEN1_S_REG(gen, ADG, BRRB, 0x04),
	RSND_GEN1_S_REG(gen, ADG, SSICKR, 0x08),
	RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL0, 0x0c),
	RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL1, 0x10),
	RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL3, 0x18),
	RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL4, 0x1c),
	RSND_GEN1_S_REG(gen, ADG, AUDIO_CLK_SEL5, 0x20),

	RSND_GEN1_M_REG(gen, SSI, SSICR, 0x00, 0x40),
	RSND_GEN1_M_REG(gen, SSI, SSISR, 0x04, 0x40),
	RSND_GEN1_M_REG(gen, SSI, SSITDR, 0x08, 0x40),
	RSND_GEN1_M_REG(gen, SSI, SSIRDR, 0x0c, 0x40),
	RSND_GEN1_M_REG(gen, SSI, SSIWSR, 0x20, 0x40),
	};

	return rsnd_gen_regmap_init(priv, gen, regf);
	}

	static int rsnd_gen1_probe(struct platform_device *pdev,
	struct rsnd_priv *priv)
	{
	struct device *dev = rsnd_priv_to_dev(priv);
	struct rsnd_gen *gen = rsnd_priv_to_gen(priv);
	struct resource *sru_res;
	struct resource *adg_res;
	struct resource *ssi_res;
	int ret;

	/*
	* map address
	*/
	sru_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_SRU);
	adg_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_ADG);
	ssi_res = platform_get_resource(pdev, IORESOURCE_MEM, RSND_GEN1_SSI);

	gen->base[RSND_GEN1_SRU] = devm_ioremap_resource(dev, sru_res);
	gen->base[RSND_GEN1_ADG] = devm_ioremap_resource(dev, adg_res);
	gen->base[RSND_GEN1_SSI] = devm_ioremap_resource(dev, ssi_res);
	if (IS_ERR(gen->base[RSND_GEN1_SRU]) \|\|
	IS_ERR(gen->base[RSND_GEN1_ADG]) \|\|
	IS_ERR(gen->base[RSND_GEN1_SSI]))
	return -ENODEV;

	ret = rsnd_gen1_regmap_init(priv, gen);
	if (ret < 0)
	return ret;

	dev_dbg(dev, "Gen1 device probed\n");
	dev_dbg(dev, "SRU : %08x => %p\n", sru_res->start,
	gen->base[RSND_GEN1_SRU]);
	dev_dbg(dev, "ADG : %08x => %p\n", adg_res->start,
	gen->base[RSND_GEN1_ADG]);
	dev_dbg(dev, "SSI : %08x => %p\n", ssi_res->start,
	gen->base[RSND_GEN1_SSI]);

	return 0;

	}

	/*
	* Gen
	*/
	static void rsnd_of_parse_gen(struct platform_device *pdev,
	const struct rsnd_of_data *of_data,
	struct rsnd_priv *priv)
	{
	struct rcar_snd_info *info = priv->info;

	if (!of_data)
	return;

	info->flags = of_data->flags;
	}

	int rsnd_gen_probe(struct platform_device *pdev,
	const struct rsnd_of_data *of_data,
	struct rsnd_priv *priv)
	{
	struct device *dev = rsnd_priv_to_dev(priv);
	struct rsnd_gen *gen;
	int ret;

	rsnd_of_parse_gen(pdev, of_data, priv);

	gen = devm_kzalloc(dev, sizeof(*gen), GFP_KERNEL);
	if (!gen) {
	dev_err(dev, "GEN allocate failed\n");
	return -ENOMEM;
	}

	priv->gen = gen;

	ret = -ENODEV;
	if (rsnd_is_gen1(priv))
	ret = rsnd_gen1_probe(pdev, priv);
	else if (rsnd_is_gen2(priv))
	ret = rsnd_gen2_probe(pdev, priv);

	if (ret < 0)
	dev_err(dev, "unknown generation R-Car sound device\n");

	return ret;
	}