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/*
* H616 dram controller register and constant defines
*
* (C) Copyright 2020 Jernej Skrabec <jernej.skrabec@siol.net>
*
* Based on H6 one, which is:
* (C) Copyright 2017 Icenowy Zheng <icenowy@aosc.io>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _SUNXI_DRAM_SUN50I_H616_H
#define _SUNXI_DRAM_SUN50I_H616_H
#include <stdbool.h>
#ifndef __ASSEMBLY__
#include <linux/bitops.h>
#endif
enum sunxi_dram_type {
SUNXI_DRAM_TYPE_DDR3 = 3,
SUNXI_DRAM_TYPE_DDR4,
SUNXI_DRAM_TYPE_LPDDR3 = 7,
SUNXI_DRAM_TYPE_LPDDR4
};
/* MBUS part is largely the same as in H6, except for one special register */
struct sunxi_mctl_com_reg {
u32 cr; /* 0x000 control register */
u8 reserved_0x004[4]; /* 0x004 */
u32 unk_0x008; /* 0x008 */
u32 tmr; /* 0x00c timer register */
u8 reserved_0x010[4]; /* 0x010 */
u32 unk_0x014; /* 0x014 */
u8 reserved_0x018[8]; /* 0x018 */
u32 maer0; /* 0x020 master enable register 0 */
u32 maer1; /* 0x024 master enable register 1 */
u32 maer2; /* 0x028 master enable register 2 */
u8 reserved_0x02c[468]; /* 0x02c */
u32 bwcr; /* 0x200 bandwidth control register */
u8 reserved_0x204[12]; /* 0x204 */
/*
* The last master configured by BSP libdram is at 0x49x, so the
* size of this struct array is set to 41 (0x29) now.
*/
struct {
u32 cfg0; /* 0x0 */
u32 cfg1; /* 0x4 */
u8 reserved_0x8[8]; /* 0x8 */
} master[41]; /* 0x210 + index * 0x10 */
u8 reserved_0x4a0[96]; /* 0x4a0 */
u32 unk_0x500; /* 0x500 */
};
check_member(sunxi_mctl_com_reg, unk_0x500, 0x500);
/*
* Controller registers seems to be the same or at least very similar
* to those in H6.
*/
struct sunxi_mctl_ctl_reg {
u32 mstr; /* 0x000 */
u32 statr; /* 0x004 unused */
u32 mstr1; /* 0x008 unused */
u32 clken; /* 0x00c */
u32 mrctrl0; /* 0x010 unused */
u32 mrctrl1; /* 0x014 unused */
u32 mrstatr; /* 0x018 unused */
u32 mrctrl2; /* 0x01c unused */
u32 derateen; /* 0x020 unused */
u32 derateint; /* 0x024 unused */
u8 reserved_0x028[8]; /* 0x028 */
u32 pwrctl; /* 0x030 unused */
u32 pwrtmg; /* 0x034 unused */
u32 hwlpctl; /* 0x038 unused */
u8 reserved_0x03c[20]; /* 0x03c */
u32 rfshctl0; /* 0x050 unused */
u32 rfshctl1; /* 0x054 unused */
u8 reserved_0x058[8]; /* 0x05c */
u32 rfshctl3; /* 0x060 */
u32 rfshtmg; /* 0x064 */
u8 reserved_0x068[104]; /* 0x068 */
u32 init[8]; /* 0x0d0 */
u32 dimmctl; /* 0x0f0 unused */
u32 rankctl; /* 0x0f4 */
u8 reserved_0x0f8[8]; /* 0x0f8 */
u32 dramtmg[17]; /* 0x100 */
u8 reserved_0x144[60]; /* 0x144 */
u32 zqctl[3]; /* 0x180 */
u32 zqstat; /* 0x18c unused */
u32 dfitmg0; /* 0x190 */
u32 dfitmg1; /* 0x194 */
u32 dfilpcfg[2]; /* 0x198 unused */
u32 dfiupd[3]; /* 0x1a0 */
u32 reserved_0x1ac; /* 0x1ac */
u32 dfimisc; /* 0x1b0 */
u32 dfitmg2; /* 0x1b4 unused */
u32 dfitmg3; /* 0x1b8 unused */
u32 dfistat; /* 0x1bc */
u32 dbictl; /* 0x1c0 */
u8 reserved_0x1c4[60]; /* 0x1c4 */
u32 addrmap[12]; /* 0x200 */
u8 reserved_0x230[16]; /* 0x230 */
u32 odtcfg; /* 0x240 */
u32 odtmap; /* 0x244 */
u8 reserved_0x248[8]; /* 0x248 */
u32 sched[2]; /* 0x250 */
u8 reserved_0x258[180]; /* 0x258 */
u32 dbgcmd; /* 0x30c unused */
u32 dbgstat; /* 0x310 unused */
u8 reserved_0x314[12]; /* 0x314 */
u32 swctl; /* 0x320 */
u32 swstat; /* 0x324 */
u8 reserved_0x328[7768];/* 0x328 */
u32 unk_0x2180; /* 0x2180 */
u8 reserved_0x2184[188];/* 0x2184 */
u32 unk_0x2240; /* 0x2240 */
u8 reserved_0x2244[3900];/* 0x2244 */
u32 unk_0x3180; /* 0x3180 */
u8 reserved_0x3184[188];/* 0x3184 */
u32 unk_0x3240; /* 0x3240 */
u8 reserved_0x3244[3900];/* 0x3244 */
u32 unk_0x4180; /* 0x4180 */
u8 reserved_0x4184[188];/* 0x4184 */
u32 unk_0x4240; /* 0x4240 */
};
check_member(sunxi_mctl_ctl_reg, swstat, 0x324);
check_member(sunxi_mctl_ctl_reg, unk_0x4240, 0x4240);
#define MSTR_DEVICETYPE_DDR3 BIT(0)
#define MSTR_DEVICETYPE_LPDDR2 BIT(2)
#define MSTR_DEVICETYPE_LPDDR3 BIT(3)
#define MSTR_DEVICETYPE_DDR4 BIT(4)
#define MSTR_DEVICETYPE_MASK GENMASK(5, 0)
#define MSTR_2TMODE BIT(10)
#define MSTR_BUSWIDTH_FULL (0 << 12)
#define MSTR_BUSWIDTH_HALF (1 << 12)
#define MSTR_ACTIVE_RANKS(x) (((x == 2) ? 3 : 1) << 24)
#define MSTR_BURST_LENGTH(x) (((x) >> 1) << 16)
struct dram_para {
u32 clk;
enum sunxi_dram_type type;
u8 cols;
u8 rows;
u8 ranks;
u8 bus_full_width;
};
static inline int ns_to_t(int nanoseconds)
{
const unsigned int ctrl_freq = CONFIG_DRAM_CLK / 2;
return DIV_ROUND_UP(ctrl_freq * nanoseconds, 1000);
}
void mctl_set_timing_params(struct dram_para *para);
#endif /* _SUNXI_DRAM_SUN50I_H616_H */
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