/* * sun8i H3 platform dram controller register and constant defines * * (C) Copyright 2007-2015 Allwinner Technology Co. * Jerry Wang <wangflord@allwinnertech.com> * (C) Copyright 2015 Vishnu Patekar <vishnupatekar0510@gmail.com> * (C) Copyright 2014-2015 Hans de Goede <hdegoede@redhat.com> * (C) Copyright 2015 Jens Kuske <jenskuske@gmail.com> * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef _SUNXI_DRAM_SUN8I_H3_H #define _SUNXI_DRAM_SUN8I_H3_H #include <linux/bitops.h> struct sunxi_mctl_com_reg { u32 cr; /* 0x00 control register */ u32 cr_r1; /* 0x04 rank 1 control register (R40 only) */ u8 res0[0x4]; /* 0x08 */ u32 tmr; /* 0x0c (unused on H3) */ u32 mcr[16][2]; /* 0x10 */ u32 bwcr; /* 0x90 bandwidth control register */ u32 maer; /* 0x94 master enable register */ u32 mapr; /* 0x98 master priority register */ u32 mcgcr; /* 0x9c */ u32 cpu_bwcr; /* 0xa0 */ u32 gpu_bwcr; /* 0xa4 */ u32 ve_bwcr; /* 0xa8 */ u32 disp_bwcr; /* 0xac */ u32 other_bwcr; /* 0xb0 */ u32 total_bwcr; /* 0xb4 */ u8 res1[0x8]; /* 0xb8 */ u32 swonr; /* 0xc0 */ u32 swoffr; /* 0xc4 */ u8 res2[0x8]; /* 0xc8 */ u32 cccr; /* 0xd0 */ u8 res3[0x54]; /* 0xd4 */ u32 mdfs_bwlr[3]; /* 0x128 (unused on H3) */ u8 res4[0x6cc]; /* 0x134 */ u32 protect; /* 0x800 */ }; #define MCTL_CR_BL8 (0x4 << 20) #define MCTL_CR_1T (0x1 << 19) #define MCTL_CR_2T (0x0 << 19) #define MCTL_CR_LPDDR3 (0x7 << 16) #define MCTL_CR_LPDDR2 (0x6 << 16) #define MCTL_CR_DDR3 (0x3 << 16) #define MCTL_CR_DDR2 (0x2 << 16) #define MCTL_CR_SEQUENTIAL (0x1 << 15) #define MCTL_CR_INTERLEAVED (0x0 << 15) #define MCTL_CR_FULL_WIDTH (0x1 << 12) #define MCTL_CR_HALF_WIDTH (0x0 << 12) #define MCTL_CR_BUS_FULL_WIDTH(x) ((x) << 12) #define MCTL_CR_PAGE_SIZE(x) ((fls(x) - 4) << 8) #define MCTL_CR_ROW_BITS(x) (((x) - 1) << 4) #define MCTL_CR_EIGHT_BANKS (0x1 << 2) #define MCTL_CR_FOUR_BANKS (0x0 << 2) #define MCTL_CR_DUAL_RANK (0x1 << 0) #define MCTL_CR_SINGLE_RANK (0x0 << 0) /* * CR_R1 is a register found in the R40's DRAM controller. It sets various * parameters for rank 1. Bits [11:0] have the same meaning as the bits in * MCTL_CR, but they apply to rank 1 only. This implies we can have * different chips for rank 1 than rank 0. * * As address line A15 and CS1 chip select for rank 1 are muxed on the same * pin, if single rank is used, A15 must be muxed in. */ #define MCTL_CR_R1_MUX_A15 (0x1 << 21) #define PROTECT_MAGIC (0x94be6fa3) struct sunxi_mctl_ctl_reg { u32 pir; /* 0x00 PHY initialization register */ u32 pwrctl; /* 0x04 */ u32 mrctrl; /* 0x08 */ u32 clken; /* 0x0c */ u32 pgsr[2]; /* 0x10 PHY general status registers */ u32 statr; /* 0x18 */ u8 res1[0x10]; /* 0x1c */ u32 lp3mr11; /* 0x2c */ u32 mr[4]; /* 0x30 mode registers */ u32 pllgcr; /* 0x40 */ u32 ptr[5]; /* 0x44 PHY timing registers */ u32 dramtmg[9]; /* 0x58 DRAM timing registers */ u32 odtcfg; /* 0x7c */ u32 pitmg[2]; /* 0x80 PHY interface timing registers */ u8 res2[0x4]; /* 0x88 */ u32 rfshctl0; /* 0x8c */ u32 rfshtmg; /* 0x90 refresh timing */ u32 rfshctl1; /* 0x94 */ u32 pwrtmg; /* 0x98 */ u8 res3[0x1c]; /* 0x9c */ u32 vtfcr; /* 0xb8 (unused on H3) */ u32 dqsgmr; /* 0xbc */ u32 dtcr; /* 0xc0 */ u32 dtar[4]; /* 0xc4 */ u32 dtdr[2]; /* 0xd4 */ u32 dtmr[2]; /* 0xdc */ u32 dtbmr; /* 0xe4 */ u32 catr[2]; /* 0xe8 */ u32 dtedr[2]; /* 0xf0 */ u8 res4[0x8]; /* 0xf8 */ u32 pgcr[4]; /* 0x100 PHY general configuration registers */ u32 iovcr[2]; /* 0x110 */ u32 dqsdr; /* 0x118 */ u32 dxccr; /* 0x11c */ u32 odtmap; /* 0x120 */ u32 zqctl[2]; /* 0x124 */ u8 res6[0x14]; /* 0x12c */ u32 zqcr; /* 0x140 ZQ control register */ u32 zqsr; /* 0x144 ZQ status register */ u32 zqdr[3]; /* 0x148 ZQ data registers */ u8 res7[0x6c]; /* 0x154 */ u32 sched; /* 0x1c0 */ u32 perfhpr[2]; /* 0x1c4 */ u32 perflpr[2]; /* 0x1cc */ u32 perfwr[2]; /* 0x1d4 */ u8 res8[0x24]; /* 0x1dc */ u32 acmdlr; /* 0x200 AC master delay line register */ u32 aclcdlr; /* 0x204 AC local calibrated delay line register */ u32 aciocr; /* 0x208 AC I/O configuration register */ u8 res9[0x4]; /* 0x20c */ u32 acbdlr[31]; /* 0x210 AC bit delay line registers */ u8 res10[0x74]; /* 0x28c */ struct { /* 0x300 DATX8 modules*/ u32 mdlr; /* 0x00 master delay line register */ u32 lcdlr[3]; /* 0x04 local calibrated delay line registers */ u32 bdlr[11]; /* 0x10 bit delay line registers */ u32 sdlr; /* 0x3c output enable bit delay registers */ u32 gtr; /* 0x40 general timing register */ u32 gcr; /* 0x44 general configuration register */ u32 gsr[3]; /* 0x48 general status registers */ u8 res0[0x2c]; /* 0x54 */ } dx[4]; u8 res11[0x388]; /* 0x500 */ u32 upd2; /* 0x888 */ }; #define PTR3_TDINIT1(x) ((x) << 20) #define PTR3_TDINIT0(x) ((x) << 0) #define PTR4_TDINIT3(x) ((x) << 20) #define PTR4_TDINIT2(x) ((x) << 0) #define DRAMTMG0_TWTP(x) ((x) << 24) #define DRAMTMG0_TFAW(x) ((x) << 16) #define DRAMTMG0_TRAS_MAX(x) ((x) << 8) #define DRAMTMG0_TRAS(x) ((x) << 0) #define DRAMTMG1_TXP(x) ((x) << 16) #define DRAMTMG1_TRTP(x) ((x) << 8) #define DRAMTMG1_TRC(x) ((x) << 0) #define DRAMTMG2_TCWL(x) ((x) << 24) #define DRAMTMG2_TCL(x) ((x) << 16) #define DRAMTMG2_TRD2WR(x) ((x) << 8) #define DRAMTMG2_TWR2RD(x) ((x) << 0) #define DRAMTMG3_TMRW(x) ((x) << 16) #define DRAMTMG3_TMRD(x) ((x) << 12) #define DRAMTMG3_TMOD(x) ((x) << 0) #define DRAMTMG4_TRCD(x) ((x) << 24) #define DRAMTMG4_TCCD(x) ((x) << 16) #define DRAMTMG4_TRRD(x) ((x) << 8) #define DRAMTMG4_TRP(x) ((x) << 0) #define DRAMTMG5_TCKSRX(x) ((x) << 24) #define DRAMTMG5_TCKSRE(x) ((x) << 16) #define DRAMTMG5_TCKESR(x) ((x) << 8) #define DRAMTMG5_TCKE(x) ((x) << 0) #define RFSHTMG_TREFI(x) ((x) << 16) #define RFSHTMG_TRFC(x) ((x) << 0) #define PIR_CLRSR (0x1 << 27) /* clear status registers */ #define PIR_QSGATE (0x1 << 10) /* Read DQS gate training */ #define PIR_DRAMINIT (0x1 << 8) /* DRAM initialization */ #define PIR_DRAMRST (0x1 << 7) /* DRAM reset */ #define PIR_PHYRST (0x1 << 6) /* PHY reset */ #define PIR_DCAL (0x1 << 5) /* DDL calibration */ #define PIR_PLLINIT (0x1 << 4) /* PLL initialization */ #define PIR_ZCAL (0x1 << 1) /* ZQ calibration */ #define PIR_INIT (0x1 << 0) /* PHY initialization trigger */ #define PGSR_INIT_DONE (0x1 << 0) /* PHY init done */ #define ZQCR_PWRDOWN (1U << 31) /* ZQ power down */ #define ACBDLR_WRITE_DELAY(x) ((x) << 8) #define DXBDLR_DQ(x) (x) /* DQ0-7 BDLR index */ #define DXBDLR_DM 8 /* DM BDLR index */ #define DXBDLR_DQS 9 /* DQS BDLR index */ #define DXBDLR_DQSN 10 /* DQSN BDLR index */ #define DXBDLR_WRITE_DELAY(x) ((x) << 8) #define DXBDLR_READ_DELAY(x) ((x) << 0) /* * The delay parameters below 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 and DQSN */ #define LINES_PER_BYTE_LANE (BITS_PER_BYTE + 3) struct dram_para { u16 page_size; u8 bus_full_width; u8 dual_rank; u8 row_bits; u8 bank_bits; const u8 dx_read_delays[NR_OF_BYTE_LANES][LINES_PER_BYTE_LANE]; const u8 dx_write_delays[NR_OF_BYTE_LANES][LINES_PER_BYTE_LANE]; const u8 ac_delays[31]; }; 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(uint16_t socid, struct dram_para *para); #endif /* _SUNXI_DRAM_SUN8I_H3_H */