src/soc/rockchip/rk3288/include/soc/sdram.h

/*
 * This file is part of the coreboot project.
 *
 * Copyright 2014 Rockchip Inc.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef __SOC_ROCKCHIP_RK3288_SDRAM_H__
#define __SOC_ROCKCHIP_RK3288_SDRAM_H__

enum {
	DDR3 = 3,
	LPDDR3 = 6,
	UNUSED = 0xFF,
};

struct rk3288_sdram_channel {
	u8 rank;
	u8 col;
	u8 bk;
	u8 bw;
	u8 dbw;
	u8 row_3_4;
	u8 cs0_row;
	u8 cs1_row;
};

struct rk3288_sdram_pctl_timing {
	u32 togcnt1u;
	u32 tinit;
	u32 trsth;
	u32 togcnt100n;
	u32 trefi;
	u32 tmrd;
	u32 trfc;
	u32 trp;
	u32 trtw;
	u32 tal;
	u32 tcl;
	u32 tcwl;
	u32 tras;
	u32 trc;
	u32 trcd;
	u32 trrd;
	u32 trtp;
	u32 twr;
	u32 twtr;
	u32 texsr;
	u32 txp;
	u32 txpdll;
	u32 tzqcs;
	u32 tzqcsi;
	u32 tdqs;
	u32 tcksre;
	u32 tcksrx;
	u32 tcke;
	u32 tmod;
	u32 trstl;
	u32 tzqcl;
	u32 tmrr;
	u32 tckesr;
	u32 tdpd;
};
check_member(rk3288_sdram_pctl_timing, tdpd, 0x144 - 0xc0);

struct rk3288_sdram_phy_timing {
	u32 dtpr0;
	u32 dtpr1;
	u32 dtpr2;
	u32 mr[4];
};

struct rk3288_sdram_params {
	struct rk3288_sdram_channel ch[2];
	struct rk3288_sdram_pctl_timing pctl_timing;
	struct rk3288_sdram_phy_timing phy_timing;
	u32 noc_timing;
	u32 noc_activate;
	u32 ddrconfig;
	u32 ddr_freq;
	u8 dramtype;
	u8 num_channels;
	u8 stride;
	u8 odt;
};

void sdram_init(const struct rk3288_sdram_params *sdram_params);
u32 sdram_get_ram_code(void);
size_t sdram_size_mb(void);
const struct rk3288_sdram_params *get_sdram_config(void);
#endif