/*
 * Copyright (c) 2017-2019, Renesas Electronics Corporation. All rights reserved.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */

#include <stdint.h>

#include <common/debug.h>

#include "../qos_common.h"
#include "../qos_reg.h"
#include "qos_init_m3n_v10.h"

#define	RCAR_QOS_VERSION		"rev.0.09"

#define QOSCTRL_EARLYR			(QOS_BASE1 + 0x0060U)
#define QOSCTRL_FSS			(QOS_BASE1 + 0x0048U)

#define REF_ARS_ARBSTOPCYCLE_M3N	(((SL_INIT_SSLOTCLK_M3N) - 5U) << 16U)

#define QOSWT_TIME_BANK0				(20000000U)	/* unit:ns */

#define	QOSWT_WTEN_ENABLE				(0x1U)

#define OSWT_WTREF_SLOT0_EN_REQ1_SLOT	(3U)
#define OSWT_WTREF_SLOT0_EN_REQ2_SLOT	(9U)
#define QOSWT_WTREF_SLOT0_EN			((0x1U << OSWT_WTREF_SLOT0_EN_REQ1_SLOT) | (0x1U << OSWT_WTREF_SLOT0_EN_REQ2_SLOT))
#define QOSWT_WTREF_SLOT1_EN			QOSWT_WTREF_SLOT0_EN

#define QOSWT_WTSET0_REQ_SSLOT0			(5U)
#define WT_BASE_SUB_SLOT_NUM0			(12U)
#define QOSWT_WTSET0_PERIOD0_M3N		((QOSWT_TIME_BANK0/QOSWT_WTSET0_CYCLE_M3N)-1U)
#define QOSWT_WTSET0_SSLOT0				(QOSWT_WTSET0_REQ_SSLOT0 -1U)
#define QOSWT_WTSET0_SLOTSLOT0			(WT_BASE_SUB_SLOT_NUM0 -1U)

#define QOSWT_WTSET1_PERIOD1_M3N		QOSWT_WTSET0_PERIOD0_M3N
#define QOSWT_WTSET1_SSLOT1				QOSWT_WTSET0_SSLOT0
#define QOSWT_WTSET1_SLOTSLOT1			QOSWT_WTSET0_SLOTSLOT0

#if RCAR_QOS_TYPE  == RCAR_QOS_TYPE_DEFAULT

#if RCAR_REF_INT == RCAR_REF_DEFAULT
#include "qos_init_m3n_v10_mstat195.h"
#else
#include "qos_init_m3n_v10_mstat390.h"
#endif

#if RCAR_REWT_TRAINING != RCAR_REWT_TRAINING_DISABLE

#if RCAR_REF_INT == RCAR_REF_DEFAULT
#include "qos_init_m3n_v10_qoswt195.h"
#else
#include "qos_init_m3n_v10_qoswt390.h"
#endif

#endif /* RCAR_REWT_TRAINING != RCAR_REWT_TRAINING_DISABLE */
#endif

static void dbsc_setting(void)
{
	uint32_t md = 0;

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

	/* BUFCAM settings */
	io_write_32(DBSC_DBCAM0CNF1, 0x00043218);	/* dbcam0cnf1 */
	io_write_32(DBSC_DBCAM0CNF2, 0x000000F4);	/* dbcam0cnf2 */
	io_write_32(DBSC_DBSCHCNT0, 0x000F0037);	/* dbschcnt0 */
	io_write_32(DBSC_DBSCHSZ0, 0x00000001);	/* dbschsz0 */
	io_write_32(DBSC_DBSCHRW0, 0x22421111);	/* dbschrw0 */

	md = (*((volatile uint32_t *)RST_MODEMR) & 0x000A0000) >> 17;

	switch (md) {
	case 0x0:
		/* DDR3200 */
		io_write_32(DBSC_SCFCTST2, 0x012F1123);
		break;
	case 0x1:		/* MD19=0,MD17=1 : LPDDR4-3000, 4GByte(1GByte x4) */
		/* DDR2800 */
		io_write_32(DBSC_SCFCTST2, 0x012F1123);
		break;
	case 0x4:		/* MD19=1,MD17=0 : LPDDR4-2400, 4GByte(1GByte x4) */
		/* DDR2400 */
		io_write_32(DBSC_SCFCTST2, 0x012F1123);
		break;
	default:		/* MD19=1,MD17=1 : LPDDR4-1600, 4GByte(1GByte x4) */
		/* DDR1600 */
		io_write_32(DBSC_SCFCTST2, 0x012F1123);
		break;
	}

	/* QoS Settings */
	io_write_32(DBSC_DBSCHQOS00, 0x00000F00);
	io_write_32(DBSC_DBSCHQOS01, 0x00000B00);
	io_write_32(DBSC_DBSCHQOS02, 0x00000000);
	io_write_32(DBSC_DBSCHQOS03, 0x00000000);
	io_write_32(DBSC_DBSCHQOS40, 0x00000300);
	io_write_32(DBSC_DBSCHQOS41, 0x000002F0);
	io_write_32(DBSC_DBSCHQOS42, 0x00000200);
	io_write_32(DBSC_DBSCHQOS43, 0x00000100);
	io_write_32(DBSC_DBSCHQOS90, 0x00000100);
	io_write_32(DBSC_DBSCHQOS91, 0x000000F0);
	io_write_32(DBSC_DBSCHQOS92, 0x000000A0);
	io_write_32(DBSC_DBSCHQOS93, 0x00000040);
	io_write_32(DBSC_DBSCHQOS130, 0x00000100);
	io_write_32(DBSC_DBSCHQOS131, 0x000000F0);
	io_write_32(DBSC_DBSCHQOS132, 0x000000A0);
	io_write_32(DBSC_DBSCHQOS133, 0x00000040);
	io_write_32(DBSC_DBSCHQOS140, 0x000000C0);
	io_write_32(DBSC_DBSCHQOS141, 0x000000B0);
	io_write_32(DBSC_DBSCHQOS142, 0x00000080);
	io_write_32(DBSC_DBSCHQOS143, 0x00000040);
	io_write_32(DBSC_DBSCHQOS150, 0x00000040);
	io_write_32(DBSC_DBSCHQOS151, 0x00000030);
	io_write_32(DBSC_DBSCHQOS152, 0x00000020);
	io_write_32(DBSC_DBSCHQOS153, 0x00000010);

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

void qos_init_m3n_v10(void)
{
	dbsc_setting();

	/* DRAM Split Address mapping */
#if RCAR_DRAM_SPLIT == RCAR_DRAM_SPLIT_4CH
#if RCAR_LSI == RCAR_M3N
#error "Don't set DRAM Split 4ch(M3N)"
#else
	ERROR("DRAM Split 4ch not supported.(M3N)");
	panic();
#endif
#elif (RCAR_DRAM_SPLIT == RCAR_DRAM_SPLIT_2CH)
#if RCAR_LSI == RCAR_M3N
#error "Don't set DRAM Split 2ch(M3N)"
#else
	ERROR("DRAM Split 2ch not supported.(M3N)");
	panic();
#endif
#else
	NOTICE("BL2: DRAM Split is OFF\n");
#endif

#if !(RCAR_QOS_TYPE == RCAR_QOS_NONE)
#if RCAR_QOS_TYPE  == RCAR_QOS_TYPE_DEFAULT
	NOTICE("BL2: QoS is default setting(%s)\n", RCAR_QOS_VERSION);
#endif

#if RCAR_REF_INT == RCAR_REF_DEFAULT
	NOTICE("BL2: DRAM refresh interval 1.95 usec\n");
#else
	NOTICE("BL2: DRAM refresh interval 3.9 usec\n");
#endif

#if RCAR_REWT_TRAINING != RCAR_REWT_TRAINING_DISABLE
	NOTICE("BL2: Periodic Write DQ Training\n");
#endif /* RCAR_REWT_TRAINING != RCAR_REWT_TRAINING_DISABLE */

	io_write_32(QOSCTRL_RAS, 0x00000028U);
	io_write_64(QOSCTRL_DANN, 0x0402000002020201UL);
	io_write_32(QOSCTRL_DANT, 0x00100804U);
	io_write_32(QOSCTRL_FSS, 0x0000000AU);
	io_write_32(QOSCTRL_INSFC, 0x06330001U);
	io_write_32(QOSCTRL_EARLYR, 0x00000001U);
	io_write_32(QOSCTRL_RACNT0, 0x00010003U);

	io_write_32(QOSCTRL_SL_INIT,
		    SL_INIT_REFFSSLOT | SL_INIT_SLOTSSLOT |
		    SL_INIT_SSLOTCLK_M3N);
	io_write_32(QOSCTRL_REF_ARS, REF_ARS_ARBSTOPCYCLE_M3N);

	{
		uint32_t i;

		for (i = 0U; i < ARRAY_SIZE(mstat_fix); i++) {
			io_write_64(QOSBW_FIX_QOS_BANK0 + i * 8, mstat_fix[i]);
			io_write_64(QOSBW_FIX_QOS_BANK1 + i * 8, mstat_fix[i]);
		}
		for (i = 0U; i < ARRAY_SIZE(mstat_be); i++) {
			io_write_64(QOSBW_BE_QOS_BANK0 + i * 8, mstat_be[i]);
			io_write_64(QOSBW_BE_QOS_BANK1 + i * 8, mstat_be[i]);
		}
#if RCAR_REWT_TRAINING != RCAR_REWT_TRAINING_DISABLE
		for (i = 0U; i < ARRAY_SIZE(qoswt_fix); i++) {
			io_write_64(QOSWT_FIX_WTQOS_BANK0 + i * 8,
				    qoswt_fix[i]);
			io_write_64(QOSWT_FIX_WTQOS_BANK1 + i * 8,
				    qoswt_fix[i]);
		}
		for (i = 0U; i < ARRAY_SIZE(qoswt_be); i++) {
			io_write_64(QOSWT_BE_WTQOS_BANK0 + i * 8, qoswt_be[i]);
			io_write_64(QOSWT_BE_WTQOS_BANK1 + i * 8, qoswt_be[i]);
		}
#endif /* RCAR_REWT_TRAINING != RCAR_REWT_TRAINING_DISABLE */
	}

	/* RT bus Leaf setting */
	io_write_32(RT_ACT0, 0x00000000U);
	io_write_32(RT_ACT1, 0x00000000U);

	/* CCI bus Leaf setting */
	io_write_32(CPU_ACT0, 0x00000003U);
	io_write_32(CPU_ACT1, 0x00000003U);

	io_write_32(QOSCTRL_RAEN, 0x00000001U);

#if RCAR_REWT_TRAINING != RCAR_REWT_TRAINING_DISABLE
	/*  re-write training setting */
	io_write_32(QOSWT_WTREF,
		    ((QOSWT_WTREF_SLOT1_EN << 16) | QOSWT_WTREF_SLOT0_EN));
	io_write_32(QOSWT_WTSET0,
		    ((QOSWT_WTSET0_PERIOD0_M3N << 16) |
		     (QOSWT_WTSET0_SSLOT0 << 8) | QOSWT_WTSET0_SLOTSLOT0));
	io_write_32(QOSWT_WTSET1,
		    ((QOSWT_WTSET1_PERIOD1_M3N << 16) |
		     (QOSWT_WTSET1_SSLOT1 << 8) | QOSWT_WTSET1_SLOTSLOT1));

	io_write_32(QOSWT_WTEN, QOSWT_WTEN_ENABLE);
#endif /* RCAR_REWT_TRAINING != RCAR_REWT_TRAINING_DISABLE */

	io_write_32(QOSCTRL_STATQC, 0x00000001U);
#else
	NOTICE("BL2: QoS is None\n");

	io_write_32(QOSCTRL_RAEN, 0x00000001U);
#endif /* !(RCAR_QOS_TYPE == RCAR_QOS_NONE) */
}