/* * H6 dram controller register and constant defines * * (C) Copyright 2017 Icenowy Zheng * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef _SUNXI_DRAM_SUN50I_H6_H #define _SUNXI_DRAM_SUN50I_H6_H #include enum sunxi_dram_type { SUNXI_DRAM_TYPE_DDR3 = 3, SUNXI_DRAM_TYPE_DDR4, SUNXI_DRAM_TYPE_LPDDR2 = 6, SUNXI_DRAM_TYPE_LPDDR3, }; static inline bool sunxi_dram_is_lpddr(int type) { return type >= SUNXI_DRAM_TYPE_LPDDR2; } /* * The following information is mainly retrieved by disassembly and some FPGA * test code of sun50iw3 platform. */ 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 */ }; check_member(sunxi_mctl_com_reg, master[40].reserved_0x8, 0x498); /* * The following register information are retrieved from some similar DRAM * controllers, including the DRAM controllers in Allwinner A23/A80 SoCs, * Rockchip RK3328 SoC, NXP i.MX7 SoCs and Xilinx Zynq UltraScale+ SoCs. * * The DRAM controller in Allwinner A23/A80 SoCs and NXP i.MX7 SoCs seems * to be older than the one in Allwinner H6, as the DRAMTMG9 register * is missing in these SoCs. (From the product specifications of these * SoCs they're not capable of DDR4) * * Information sources: * - dram_sun9i.h and dram_sun8i_a23.h in the same directory. * - sdram_rk3328.h from the RK3328 TPL DRAM patchset * - i.MX 7Solo Applications Processor Reference Manual (IMX7SRM) * - Zynq UltraScale+ MPSoC Register Reference (UG1087) */ struct sunxi_mctl_ctl_reg { u32 mstr; /* 0x000 */ u32 statr; /* 0x004 unused */ u32 mstr1; /* 0x008 unused */ u32 unk_0x00c; /* 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 reserved for ECC&CRC (from ZynqMP) */ 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, may not exist */ u8 reserved_0x1b8[8]; /* 0x1b8 */ 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 */ }; check_member(sunxi_mctl_ctl_reg, swstat, 0x324); #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) /* * The following register information is based on Zynq UltraScale+ * MPSoC Register Reference, as it's the currently only known * DDR PHY similar to the one used in H6; however although the * map is similar, the bit fields definitions are different. * * Other DesignWare DDR PHY's have similar register names, but the * offset and definitions are both different. */ struct sunxi_mctl_phy_reg { u32 ver; /* 0x000 guess based on similar PHYs */ u32 pir; /* 0x004 */ u8 reserved_0x008[8]; /* 0x008 */ /* * The ZynqMP manual didn't document PGCR1, however this register * exists on H6 and referenced by libdram. */ u32 pgcr[8]; /* 0x010 */ /* * By comparing the hardware and the ZynqMP manual, the PGSR seems * to start at 0x34 on H6. */ u8 reserved_0x030[4]; /* 0x030 */ u32 pgsr[3]; /* 0x034 */ u32 ptr[7]; /* 0x040 */ /* * According to ZynqMP reference there's PLLCR0~6 in this area, * but they're tagged "Type B PLL Only" and H6 seems to have * no them. * 0x080 is not present in ZynqMP reference but it seems to be * present on H6. */ u8 reserved_0x05c[36]; /* 0x05c */ u32 unk_0x080; /* 0x080 */ u8 reserved_0x084[4]; /* 0x084 */ u32 dxccr; /* 0x088 */ u8 reserved_0x08c[4]; /* 0x08c */ u32 dsgcr; /* 0x090 */ u8 reserved_0x094[4]; /* 0x094 */ u32 odtcr; /* 0x098 */ u8 reserved_0x09c[4]; /* 0x09c */ u32 aacr; /* 0x0a0 */ u8 reserved_0x0a4[32]; /* 0x0a4 */ u32 gpr1; /* 0x0c4 */ u8 reserved_0x0c8[56]; /* 0x0c8 */ u32 dcr; /* 0x100 */ u8 reserved_0x104[12]; /* 0x104 */ u32 dtpr[7]; /* 0x110 */ u8 reserved_0x12c[20]; /* 0x12c */ u32 rdimmgcr[3]; /* 0x140 */ u8 reserved_0x14c[4]; /* 0x14c */ u32 rdimmcr[5]; /* 0x150 */ u8 reserved_0x164[4]; /* 0x164 */ u32 schcr[2]; /* 0x168 */ u8 reserved_0x170[16]; /* 0x170 */ /* * The ZynqMP manual documents MR0~7, 11~14 and 22. */ u32 mr[23]; /* 0x180 */ u8 reserved_0x1dc[36]; /* 0x1dc */ u32 dtcr[2]; /* 0x200 */ u32 dtar[3]; /* 0x208 */ u8 reserved_0x214[4]; /* 0x214 */ u32 dtdr[2]; /* 0x218 */ u8 reserved_0x220[16]; /* 0x220 */ u32 dtedr0; /* 0x230 */ u32 dtedr1; /* 0x234 */ u32 dtedr2; /* 0x238 */ u32 vtdr; /* 0x23c */ u32 catr[2]; /* 0x240 */ u8 reserved_0x248[8]; u32 dqsdr[3]; /* 0x250 */ u32 dtedr3; /* 0x25c */ u8 reserved_0x260[160]; /* 0x260 */ u32 dcuar; /* 0x300 */ u32 dcudr; /* 0x304 */ u32 dcurr; /* 0x308 */ u32 dculr; /* 0x30c */ u32 dcugcr; /* 0x310 */ u32 dcutpr; /* 0x314 */ u32 dcusr[2]; /* 0x318 */ u8 reserved_0x320[444]; /* 0x320 */ u32 rankidr; /* 0x4dc */ u32 riocr[6]; /* 0x4e0 */ u8 reserved_0x4f8[8]; /* 0x4f8 */ u32 aciocr[6]; /* 0x500 */ u8 reserved_0x518[8]; /* 0x518 */ u32 iovcr[2]; /* 0x520 */ u32 vtcr[2]; /* 0x528 */ u8 reserved_0x530[16]; /* 0x530 */ u32 acbdlr[17]; /* 0x540 */ u32 aclcdlr; /* 0x584 */ u8 reserved_0x588[24]; /* 0x588 */ u32 acmdlr[2]; /* 0x5a0 */ u8 reserved_0x5a8[216]; /* 0x5a8 */ struct { u32 zqcr; /* 0x00 only the first one valid */ u32 zqpr[2]; /* 0x04 */ u32 zqdr[2]; /* 0x0c */ u32 zqor[2]; /* 0x14 */ u32 zqsr; /* 0x1c */ } zq[2]; /* 0x680, 0x6a0 */ u8 reserved_0x6c0[64]; /* 0x6c0 */ struct { u32 gcr[7]; /* 0x00 */ u8 reserved_0x1c[36]; /* 0x1c */ u32 bdlr0; /* 0x40 */ u32 bdlr1; /* 0x44 */ u32 bdlr2; /* 0x48 */ u8 reserved_0x4c[4]; /* 0x4c */ u32 bdlr3; /* 0x50 */ u32 bdlr4; /* 0x54 */ u32 bdlr5; /* 0x58 */ u8 reserved_0x5c[4]; /* 0x5c */ u32 bdlr6; /* 0x60 */ u8 reserved_0x64[28]; /* 0x64 */ u32 lcdlr[6]; /* 0x80 */ u8 reserved_0x98[8]; /* 0x98 */ u32 mdlr[2]; /* 0xa0 */ u8 reserved_0xa8[24]; /* 0xa8 */ u32 gtr0; /* 0xc0 */ u8 reserved_0xc4[12]; /* 0xc4 */ /* * DXnRSR0 is not documented in ZynqMP manual but * it's used in libdram. */ u32 rsr[4]; /* 0xd0 */ u32 gsr[4]; /* 0xe0 */ u8 reserved_0xf0[16]; /* 0xf0 */ } dx[4]; /* 0x700, 0x800, 0x900, 0xa00 */ }; check_member(sunxi_mctl_phy_reg, dx[3].reserved_0xf0, 0xaf0); #define PIR_INIT BIT(0) #define PIR_ZCAL BIT(1) #define PIR_CA BIT(2) #define PIR_PLLINIT BIT(4) #define PIR_DCAL BIT(5) #define PIR_PHYRST BIT(6) #define PIR_DRAMRST BIT(7) #define PIR_DRAMINIT BIT(8) #define PIR_WL BIT(9) #define PIR_QSGATE BIT(10) #define PIR_WLADJ BIT(11) #define PIR_RDDSKW BIT(12) #define PIR_WRDSKW BIT(13) #define PIR_RDEYE BIT(14) #define PIR_WREYE BIT(15) #define PIR_VREF BIT(17) #define PIR_CTLDINIT BIT(18) #define PIR_DQS2DQ BIT(20) #define PIR_DCALPSE BIT(29) #define PIR_ZCALBYP BIT(30) #define DCR_LPDDR3 (1 << 0) #define DCR_DDR3 (3 << 0) #define DCR_DDR4 (4 << 0) #define DCR_DDR8BANK BIT(3) #define DCR_DDR2T BIT(28) /* * The delay parameters allow to allegedly specify delay times of some * unknown unit for each individual bit trace in each of the four data bytes * the 32-bit wide access consists of. Also three control signals can be * adjusted individually. */ #define NR_OF_BYTE_LANES (32 / BITS_PER_BYTE) /* The eight data lines (DQn) plus DM, DQS, DQS/DM/DQ Output Enable and DQSN */ #define WR_LINES_PER_BYTE_LANE (BITS_PER_BYTE + 4) /* * The eight data lines (DQn) plus DM, DQS, DQS/DM/DQ Output Enable, DQSN, * Termination and Power down */ #define RD_LINES_PER_BYTE_LANE (BITS_PER_BYTE + 6) struct dram_para { u32 clk; enum sunxi_dram_type type; u8 cols; u8 rows; u8 ranks; u8 bus_full_width; const u8 dx_read_delays[NR_OF_BYTE_LANES][RD_LINES_PER_BYTE_LANE]; const u8 dx_write_delays[NR_OF_BYTE_LANES][WR_LINES_PER_BYTE_LANE]; }; 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_H6_H */