/*
 * Copyright (c) 2015-2019, Renesas Electronics Corporation. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <stdint.h>

#include <common/debug.h>
#include <lib/mmio.h>

#include "qos_init.h"
#include "qos_common.h"
#include "qos_reg.h"
#if RCAR_LSI == RCAR_AUTO
#include "H3/qos_init_h3_v10.h"
#include "H3/qos_init_h3_v11.h"
#include "H3/qos_init_h3_v20.h"
#include "H3/qos_init_h3_v30.h"
#include "M3/qos_init_m3_v10.h"
#include "M3/qos_init_m3_v11.h"
#include "M3/qos_init_m3_v30.h"
#include "M3N/qos_init_m3n_v10.h"
#include "V3M/qos_init_v3m.h"
#endif
#if RCAR_LSI == RCAR_H3		/* H3 */
#include "H3/qos_init_h3_v10.h"
#include "H3/qos_init_h3_v11.h"
#include "H3/qos_init_h3_v20.h"
#include "H3/qos_init_h3_v30.h"
#endif
#if RCAR_LSI == RCAR_H3N	/* H3 */
#include "H3/qos_init_h3n_v30.h"
#endif
#if RCAR_LSI == RCAR_M3		/* M3 */
#include "M3/qos_init_m3_v10.h"
#include "M3/qos_init_m3_v11.h"
#include "M3/qos_init_m3_v30.h"
#endif
#if RCAR_LSI == RCAR_M3N	/* M3N */
#include "M3N/qos_init_m3n_v10.h"
#endif
#if RCAR_LSI == RCAR_V3M	/* V3M */
#include "V3M/qos_init_v3m.h"
#endif
#if RCAR_LSI == RCAR_E3		/* E3 */
#include "E3/qos_init_e3_v10.h"
#endif
#if RCAR_LSI == RCAR_D3		/* D3 */
#include "D3/qos_init_d3.h"
#endif

 /* Product Register */
#define PRR			0xFFF00044U
#define PRR_PRODUCT_MASK	0x00007F00U
#define PRR_CUT_MASK		0x000000FFU
#define PRR_PRODUCT_H3		0x00004F00U	/* R-Car H3 */
#define PRR_PRODUCT_M3		0x00005200U	/* R-Car M3 */
#define PRR_PRODUCT_V3M		0x00005400U	/* R-Car V3M */
#define PRR_PRODUCT_M3N		0x00005500U	/* R-Car M3N */
#define PRR_PRODUCT_E3		0x00005700U	/* R-Car E3 */
#define PRR_PRODUCT_D3		0x00005800U	/* R-Car D3 */
#define PRR_PRODUCT_10		0x00U
#define PRR_PRODUCT_11		0x01U
#define PRR_PRODUCT_20		0x10U
#define PRR_PRODUCT_21		0x11U
#define PRR_PRODUCT_30		0x20U

#if (RCAR_LSI != RCAR_E3) && (RCAR_LSI != RCAR_D3) && (RCAR_LSI != RCAR_V3M)

#define DRAM_CH_CNT			0x04
uint32_t qos_init_ddr_ch;
uint8_t qos_init_ddr_phyvalid;
#endif

#define PRR_PRODUCT_ERR(reg)				\
	do {						\
		ERROR("LSI Product ID(PRR=0x%x) QoS "	\
		"initialize not supported.\n", reg);	\
		panic();				\
	} while (0)

#define PRR_CUT_ERR(reg)				\
	do {						\
		ERROR("LSI Cut ID(PRR=0x%x) QoS "	\
		"initialize not supported.\n", reg);	\
		panic();				\
	} while (0)

void rcar_qos_init(void)
{
	uint32_t reg;
#if (RCAR_LSI != RCAR_E3) && (RCAR_LSI != RCAR_D3) && (RCAR_LSI != RCAR_V3M)
	uint32_t i;

	qos_init_ddr_ch = 0;
	qos_init_ddr_phyvalid = get_boardcnf_phyvalid();
	for (i = 0; i < DRAM_CH_CNT; i++) {
		if ((qos_init_ddr_phyvalid & (1 << i))) {
			qos_init_ddr_ch++;
		}
	}
#endif

	reg = mmio_read_32(PRR);
#if (RCAR_LSI == RCAR_AUTO) || RCAR_LSI_CUT_COMPAT
	switch (reg & PRR_PRODUCT_MASK) {
	case PRR_PRODUCT_H3:
#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_H3)
		switch (reg & PRR_CUT_MASK) {
		case PRR_PRODUCT_10:
			qos_init_h3_v10();
			break;
		case PRR_PRODUCT_11:
			qos_init_h3_v11();
			break;
		case PRR_PRODUCT_20:
			qos_init_h3_v20();
			break;
		case PRR_PRODUCT_30:
		default:
			qos_init_h3_v30();
			break;
		}
#elif (RCAR_LSI == RCAR_H3N)
		switch (reg & PRR_CUT_MASK) {
		case PRR_PRODUCT_30:
		default:
			qos_init_h3n_v30();
			break;
		}
#else
		PRR_PRODUCT_ERR(reg);
#endif
		break;
	case PRR_PRODUCT_M3:
#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_M3)
		switch (reg & PRR_CUT_MASK) {
		case PRR_PRODUCT_10:
			qos_init_m3_v10();
			break;
		case PRR_PRODUCT_21: /* M3 Cut 13 */
			qos_init_m3_v11();
			break;
		case PRR_PRODUCT_30: /* M3 Cut 30 */
		default:
			qos_init_m3_v30();
			break;
		}
#else
		PRR_PRODUCT_ERR(reg);
#endif
		break;
	case PRR_PRODUCT_M3N:
#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_M3N)
		switch (reg & PRR_CUT_MASK) {
		case PRR_PRODUCT_10:
		default:
			qos_init_m3n_v10();
			break;
		}
#else
		PRR_PRODUCT_ERR(reg);
#endif
		break;
	case PRR_PRODUCT_V3M:
#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_V3M)
		switch (reg & PRR_CUT_MASK) {
		case PRR_PRODUCT_10:
		case PRR_PRODUCT_20:
		default:
			qos_init_v3m();
			break;
		}
#else
		PRR_PRODUCT_ERR(reg);
#endif
		break;
	case PRR_PRODUCT_E3:
#if (RCAR_LSI == RCAR_E3)
		switch (reg & PRR_CUT_MASK) {
		case PRR_PRODUCT_10:
		default:
			qos_init_e3_v10();
			break;
		}
#else
		PRR_PRODUCT_ERR(reg);
#endif
		break;
	case PRR_PRODUCT_D3:
#if (RCAR_LSI == RCAR_D3)
		switch (reg & PRR_CUT_MASK) {
		case PRR_PRODUCT_10:
		default:
			qos_init_d3();
			break;
		}
#else
		PRR_PRODUCT_ERR(reg);
#endif
		break;
	default:
		PRR_PRODUCT_ERR(reg);
		break;
	}
#else
#if RCAR_LSI == RCAR_H3		/* H3 */
#if RCAR_LSI_CUT == RCAR_CUT_10
	/* H3 Cut 10 */
	if ((PRR_PRODUCT_H3 | PRR_PRODUCT_10)
	    != (reg & (PRR_PRODUCT_MASK | PRR_CUT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_h3_v10();
#elif RCAR_LSI_CUT == RCAR_CUT_11
	/* H3 Cut 11 */
	if ((PRR_PRODUCT_H3 | PRR_PRODUCT_11)
	    != (reg & (PRR_PRODUCT_MASK | PRR_CUT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_h3_v11();
#elif RCAR_LSI_CUT == RCAR_CUT_20
	/* H3 Cut 20 */
	if ((PRR_PRODUCT_H3 | PRR_PRODUCT_20)
	    != (reg & (PRR_PRODUCT_MASK | PRR_CUT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_h3_v20();
#else
	/* H3 Cut 30 or later */
	if ((PRR_PRODUCT_H3)
	    != (reg & (PRR_PRODUCT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_h3_v30();
#endif
#elif RCAR_LSI == RCAR_H3N	/* H3 */
	/* H3N Cut 30 or later */
	if ((PRR_PRODUCT_H3)
	    != (reg & (PRR_PRODUCT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_h3n_v30();
#elif RCAR_LSI == RCAR_M3	/* M3 */
#if RCAR_LSI_CUT == RCAR_CUT_10
	/* M3 Cut 10 */
	if ((PRR_PRODUCT_M3 | PRR_PRODUCT_10)
	    != (reg & (PRR_PRODUCT_MASK | PRR_CUT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_m3_v10();
#elif RCAR_LSI_CUT == RCAR_CUT_11
	/* M3 Cut 11 */
	if ((PRR_PRODUCT_M3 | PRR_PRODUCT_20)
	    != (reg & (PRR_PRODUCT_MASK | PRR_CUT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_m3_v11();
#elif RCAR_LSI_CUT == RCAR_CUT_13
	/* M3 Cut 13 */
	if ((PRR_PRODUCT_M3 | PRR_PRODUCT_21)
	    != (reg & (PRR_PRODUCT_MASK | PRR_CUT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_m3_v11();
#else
	/* M3 Cut 30 or later */
	if ((PRR_PRODUCT_M3)
	    != (reg & (PRR_PRODUCT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_m3_v30();
#endif
#elif RCAR_LSI == RCAR_M3N	/* M3N */
	/* M3N Cut 10 or later */
	if ((PRR_PRODUCT_M3N)
	    != (reg & (PRR_PRODUCT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_m3n_v10();
#elif RCAR_LSI == RCAR_V3M	/* V3M */
	/* V3M Cut 10 or later */
	if ((PRR_PRODUCT_V3M)
			!= (reg & (PRR_PRODUCT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_v3m();
#elif RCAR_LSI == RCAR_D3	/* D3 */
	/* D3 Cut 10 or later */
	if ((PRR_PRODUCT_D3)
	    != (reg & (PRR_PRODUCT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_d3();
#elif RCAR_LSI == RCAR_E3	/* E3 */
	/* E3 Cut 10 or later */
	if ((PRR_PRODUCT_E3)
	    != (reg & (PRR_PRODUCT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_e3_v10();
#else
#error "Don't have QoS initialize routine(Unknown chip)."
#endif
#endif
}

#if (RCAR_LSI != RCAR_E3) && (RCAR_LSI != RCAR_D3) && (RCAR_LSI != RCAR_V3M)
uint32_t get_refperiod(void)
{
	uint32_t refperiod = QOSWT_WTSET0_CYCLE;

#if (RCAR_LSI == RCAR_AUTO) || RCAR_LSI_CUT_COMPAT
	uint32_t reg;

	reg = mmio_read_32(PRR);
	switch (reg & PRR_PRODUCT_MASK) {
#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_H3)
	case PRR_PRODUCT_H3:
		switch (reg & PRR_CUT_MASK) {
		case PRR_PRODUCT_10:
		case PRR_PRODUCT_11:
			break;
		case PRR_PRODUCT_20:
		case PRR_PRODUCT_30:
		default:
			refperiod = REFPERIOD_CYCLE;
			break;
		}
		break;
#elif (RCAR_LSI == RCAR_H3N)
	case PRR_PRODUCT_H3:
		switch (reg & PRR_CUT_MASK) {
		case PRR_PRODUCT_30:
		default:
			refperiod = REFPERIOD_CYCLE;
			break;
		}
		break;
#endif
#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_M3)
	case PRR_PRODUCT_M3:
		switch (reg & PRR_CUT_MASK) {
		case PRR_PRODUCT_10:
			break;
		case PRR_PRODUCT_20: /* M3 Cut 11 */
		case PRR_PRODUCT_21: /* M3 Cut 13 */
		case PRR_PRODUCT_30: /* M3 Cut 30 */
		default:
			refperiod = REFPERIOD_CYCLE;
			break;
		}
		break;
#endif
#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_M3N)
	case PRR_PRODUCT_M3N:
		refperiod = REFPERIOD_CYCLE;
		break;
#endif
	default:
		break;
	}
#elif RCAR_LSI == RCAR_H3
#if RCAR_LSI_CUT == RCAR_CUT_10
	/* H3 Cut 10 */
#elif RCAR_LSI_CUT == RCAR_CUT_11
	/* H3 Cut 11 */
#else
	/* H3 Cut 20 */
	/* H3 Cut 30 or later */
	refperiod = REFPERIOD_CYCLE;
#endif
#elif RCAR_LSI == RCAR_H3N
	/* H3N Cut 30 or later */
	refperiod = REFPERIOD_CYCLE;
#elif RCAR_LSI == RCAR_M3
#if RCAR_LSI_CUT == RCAR_CUT_10
	/* M3 Cut 10 */
#else
	/* M3 Cut 11 */
	/* M3 Cut 13 */
	/* M3 Cut 30 or later */
	refperiod = REFPERIOD_CYCLE;
#endif
#elif RCAR_LSI == RCAR_M3N	/* for M3N */
	refperiod = REFPERIOD_CYCLE;
#endif

	return refperiod;
}
#endif

void rcar_qos_dbsc_setting(struct rcar_gen3_dbsc_qos_settings *qos,
			   unsigned int qos_size, bool dbsc_wren)
{
	int i;

	/* Register write enable */
	if (dbsc_wren)
		io_write_32(DBSC_DBSYSCNT0, 0x00001234U);

	for (i = 0; i < qos_size; i++)
		io_write_32(qos[i].reg, qos[i].val);

	/* Register write protect */
	if (dbsc_wren)
		io_write_32(DBSC_DBSYSCNT0, 0x00000000U);
}