/*
 * Copyright (c) 2015-2018, 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"
#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 "M3N/qos_init_m3n_v10.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"
#endif
#if RCAR_LSI == RCAR_M3N	/* M3N */
#include "M3N/qos_init_m3n_v10.h"
#endif
#if RCAR_LSI == RCAR_E3		/* E3 */
#include "E3/qos_init_e3_v10.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_M3N		(0x00005500U)	/* R-Car M3N */
#define PRR_PRODUCT_E3		(0x00005700U)	/* R-Car E3 */
#define PRR_PRODUCT_10		(0x00U)
#define PRR_PRODUCT_11		(0x01U)
#define PRR_PRODUCT_20		(0x10U)
#define PRR_PRODUCT_30		(0x20U)

#if !(RCAR_LSI == RCAR_E3)

#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)
	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_20:	/* M3 Cut 11 */
		default:
			qos_init_m3_v11();
			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_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;
	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();
#else
	/* M3 Cut 11 or later */
	if ((PRR_PRODUCT_M3)
	    != (reg & (PRR_PRODUCT_MASK))) {
		PRR_PRODUCT_ERR(reg);
	}
	qos_init_m3_v11();
#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_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
}

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:
			refperiod = QOSWT_WTSET0_CYCLE_H3_20;
			break;
		case PRR_PRODUCT_30:
		default:
			refperiod = QOSWT_WTSET0_CYCLE_H3_30;
			break;
		}
		break;
#elif (RCAR_LSI == RCAR_H3N)
	case PRR_PRODUCT_H3:
		switch (reg & PRR_CUT_MASK) {
		case PRR_PRODUCT_30:
		default:
			refperiod = QOSWT_WTSET0_CYCLE_H3N;
			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 */
		default:
			refperiod = QOSWT_WTSET0_CYCLE_M3_11;
			break;
		}
		break;
#endif
#if (RCAR_LSI == RCAR_AUTO) || (RCAR_LSI == RCAR_M3N)
	case PRR_PRODUCT_M3N:
		refperiod = QOSWT_WTSET0_CYCLE_M3N;
		break;
#endif
#if (RCAR_LSI == RCAR_E3)
	case PRR_PRODUCT_E3:
		refperiod = QOSWT_WTSET0_CYCLE_E3;
		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 */
#elif RCAR_LSI_CUT == RCAR_CUT_20
	/* H3 Cut 20 */
	refperiod = QOSWT_WTSET0_CYCLE_H3_20;
#else
	/* H3 Cut 30 or later */
	refperiod = QOSWT_WTSET0_CYCLE_H3_30;
#endif
#elif RCAR_LSI == RCAR_H3N
	/* H3N Cut 30 or later */
	refperiod = QOSWT_WTSET0_CYCLE_H3N;
#elif RCAR_LSI == RCAR_M3
#if RCAR_LSI_CUT == RCAR_CUT_10
	/* M3 Cut 10 */
#else
	/* M3 Cut 11 or later */
	refperiod = QOSWT_WTSET0_CYCLE_M3_11;
#endif
#elif RCAR_LSI == RCAR_M3N	/* for M3N */
	refperiod = QOSWT_WTSET0_CYCLE_M3N;
#elif RCAR_LSI == RCAR_E3	/* for E3 */
	refperiod = QOSWT_WTSET0_CYCLE_E3;
#endif

	return refperiod;
}