This driver supports ddr3/lpddr3/ddr4 sdram initialization.
Since we are going to merge the common part in dram driver for all Rockchip SoCs, this patch become a RFC and can be used for people who need it.
Signed-off-by: YouMin Chen cym@rock-chips.com Signed-off-by: Kever Yang kever.yang@rock-chips.com ---
arch/arm/include/asm/arch-rockchip/sdram_rk3328.h | 535 ++++++++++++ drivers/ram/rockchip/sdram_rk3328.c | 976 +++++++++++++++++++++- 2 files changed, 1508 insertions(+), 3 deletions(-) create mode 100644 arch/arm/include/asm/arch-rockchip/sdram_rk3328.h
diff --git a/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h b/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h new file mode 100644 index 0000000..951d4fa --- /dev/null +++ b/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h @@ -0,0 +1,535 @@ +/* + * Copyright (C) 2016-2017 Rockchip Electronics Co., Ltd + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _ASM_ARCH_SDRAM_RK3328_H +#define _ASM_ARCH_SDRAM_RK3328_H + +enum { + DDR4 = 0, + DDR3 = 3, + LPDDR2 = 5, + LPDDR3 = 6, + LPDDR4 = 7, + UNUSED = 0xFF +}; + +#define SR_IDLE 93 +#define PD_IDLE 13 +#define SDRAM_ADDR 0x00000000 +#define PATTERN (0x5aa5f00f) + +/* ddr pctl registers define */ +#define DDR_PCTL2_MSTR 0x0 +#define DDR_PCTL2_STAT 0x4 +#define DDR_PCTL2_MSTR1 0x8 +#define DDR_PCTL2_MRCTRL0 0x10 +#define DDR_PCTL2_MRCTRL1 0x14 +#define DDR_PCTL2_MRSTAT 0x18 +#define DDR_PCTL2_MRCTRL2 0x1c +#define DDR_PCTL2_DERATEEN 0x20 +#define DDR_PCTL2_DERATEINT 0x24 +#define DDR_PCTL2_PWRCTL 0x30 +#define DDR_PCTL2_PWRTMG 0x34 +#define DDR_PCTL2_HWLPCTL 0x38 +#define DDR_PCTL2_RFSHCTL0 0x50 +#define DDR_PCTL2_RFSHCTL1 0x54 +#define DDR_PCTL2_RFSHCTL2 0x58 +#define DDR_PCTL2_RFSHCTL4 0x5c +#define DDR_PCTL2_RFSHCTL3 0x60 +#define DDR_PCTL2_RFSHTMG 0x64 +#define DDR_PCTL2_RFSHTMG1 0x68 +#define DDR_PCTL2_RFSHCTL5 0x6c +#define DDR_PCTL2_INIT0 0xd0 +#define DDR_PCTL2_INIT1 0xd4 +#define DDR_PCTL2_INIT2 0xd8 +#define DDR_PCTL2_INIT3 0xdc +#define DDR_PCTL2_INIT4 0xe0 +#define DDR_PCTL2_INIT5 0xe4 +#define DDR_PCTL2_INIT6 0xe8 +#define DDR_PCTL2_INIT7 0xec +#define DDR_PCTL2_DIMMCTL 0xf0 +#define DDR_PCTL2_RANKCTL 0xf4 +#define DDR_PCTL2_CHCTL 0xfc +#define DDR_PCTL2_DRAMTMG0 0x100 +#define DDR_PCTL2_DRAMTMG1 0x104 +#define DDR_PCTL2_DRAMTMG2 0x108 +#define DDR_PCTL2_DRAMTMG3 0x10c +#define DDR_PCTL2_DRAMTMG4 0x110 +#define DDR_PCTL2_DRAMTMG5 0x114 +#define DDR_PCTL2_DRAMTMG6 0x118 +#define DDR_PCTL2_DRAMTMG7 0x11c +#define DDR_PCTL2_DRAMTMG8 0x120 +#define DDR_PCTL2_DRAMTMG9 0x124 +#define DDR_PCTL2_DRAMTMG10 0x128 +#define DDR_PCTL2_DRAMTMG11 0x12c +#define DDR_PCTL2_DRAMTMG12 0x130 +#define DDR_PCTL2_DRAMTMG13 0x134 +#define DDR_PCTL2_DRAMTMG14 0x138 +#define DDR_PCTL2_DRAMTMG15 0x13c +#define DDR_PCTL2_DRAMTMG16 0x140 +#define DDR_PCTL2_ZQCTL0 0x180 +#define DDR_PCTL2_ZQCTL1 0x184 +#define DDR_PCTL2_ZQCTL2 0x188 +#define DDR_PCTL2_ZQSTAT 0x18c +#define DDR_PCTL2_DFITMG0 0x190 +#define DDR_PCTL2_DFITMG1 0x194 +#define DDR_PCTL2_DFILPCFG0 0x198 +#define DDR_PCTL2_DFILPCFG1 0x19c +#define DDR_PCTL2_DFIUPD0 0x1a0 +#define DDR_PCTL2_DFIUPD1 0x1a4 +#define DDR_PCTL2_DFIUPD2 0x1a8 +#define DDR_PCTL2_DFIMISC 0x1b0 +#define DDR_PCTL2_DFITMG2 0x1b4 +#define DDR_PCTL2_DFITMG3 0x1b8 +#define DDR_PCTL2_DFISTAT 0x1bc +#define DDR_PCTL2_DBICTL 0x1c0 +#define DDR_PCTL2_ADDRMAP0 0x200 +#define DDR_PCTL2_ADDRMAP1 0x204 +#define DDR_PCTL2_ADDRMAP2 0x208 +#define DDR_PCTL2_ADDRMAP3 0x20c +#define DDR_PCTL2_ADDRMAP4 0x210 +#define DDR_PCTL2_ADDRMAP5 0x214 +#define DDR_PCTL2_ADDRMAP6 0x218 +#define DDR_PCTL2_ADDRMAP7 0x21c +#define DDR_PCTL2_ADDRMAP8 0x220 +#define DDR_PCTL2_ADDRMAP9 0x224 +#define DDR_PCTL2_ADDRMAP10 0x228 +#define DDR_PCTL2_ADDRMAP11 0x22c +#define DDR_PCTL2_ODTCFG 0x240 +#define DDR_PCTL2_ODTMAP 0x244 +#define DDR_PCTL2_SCHED 0x250 +#define DDR_PCTL2_SCHED1 0x254 +#define DDR_PCTL2_PERFHPR1 0x25c +#define DDR_PCTL2_PERFLPR1 0x264 +#define DDR_PCTL2_PERFWR1 0x26c +#define DDR_PCTL2_DQMAP0 0x280 +#define DDR_PCTL2_DQMAP1 0x284 +#define DDR_PCTL2_DQMAP2 0x288 +#define DDR_PCTL2_DQMAP3 0x28c +#define DDR_PCTL2_DQMAP4 0x290 +#define DDR_PCTL2_DQMAP5 0x294 +#define DDR_PCTL2_DBG0 0x300 +#define DDR_PCTL2_DBG1 0x304 +#define DDR_PCTL2_DBGCAM 0x308 +#define DDR_PCTL2_DBGCMD 0x30c +#define DDR_PCTL2_DBGSTAT 0x310 +#define DDR_PCTL2_SWCTL 0x320 +#define DDR_PCTL2_SWSTAT 0x324 +#define DDR_PCTL2_POISONCFG 0x36c +#define DDR_PCTL2_POISONSTAT 0x370 +#define DDR_PCTL2_ADVECCINDEX 0x374 +#define DDR_PCTL2_ADVECCSTAT 0x378 +#define DDR_PCTL2_PSTAT 0x3fc +#define DDR_PCTL2_PCCFG 0x400 +#define DDR_PCTL2_PCFGR_n 0x404 +#define DDR_PCTL2_PCFGW_n 0x408 +#define DDR_PCTL2_PCTRL_n 0x490 + +/* PCTL2_MRSTAT */ +#define MR_WR_BUSY BIT(0) + +/* PHY_REG0 */ +#define DIGITAL_DERESET BIT(3) +#define ANALOG_DERESET BIT(2) +#define DIGITAL_RESET (0 << 3) +#define ANALOG_RESET (0 << 2) + +/* PHY_REG1 */ +#define PHY_DDR2 (0) +#define PHY_LPDDR2 (1) +#define PHY_DDR3 (2) +#define PHY_LPDDR3 (3) +#define PHY_DDR4 (4) +#define PHY_BL_4 (0 << 2) +#define PHY_BL_8 BIT(2) + +/* PHY_REG2 */ +#define PHY_DTT_EN BIT(0) +#define PHY_DTT_DISB (0 << 0) +#define PHY_WRITE_LEVELING_EN BIT(2) +#define PHY_WRITE_LEVELING_DISB (0 << 2) +#define PHY_SELECT_CS0 (2) +#define PHY_SELECT_CS1 (1) +#define PHY_SELECT_CS0_1 (0) +#define PHY_WRITE_LEVELING_SELECTCS(n) (n << 6) +#define PHY_DATA_TRAINING_SELECTCS(n) (n << 4) + +#define PHY_DDR3_RON_RTT_DISABLE (0) +#define PHY_DDR3_RON_RTT_451ohm (1) +#define PHY_DDR3_RON_RTT_225ohm (2) +#define PHY_DDR3_RON_RTT_150ohm (3) +#define PHY_DDR3_RON_RTT_112ohm (4) +#define PHY_DDR3_RON_RTT_90ohm (5) +#define PHY_DDR3_RON_RTT_75ohm (6) +#define PHY_DDR3_RON_RTT_64ohm (7) +#define PHY_DDR3_RON_RTT_56ohm (16) +#define PHY_DDR3_RON_RTT_50ohm (17) +#define PHY_DDR3_RON_RTT_45ohm (18) +#define PHY_DDR3_RON_RTT_41ohm (19) +#define PHY_DDR3_RON_RTT_37ohm (20) +#define PHY_DDR3_RON_RTT_34ohm (21) +#define PHY_DDR3_RON_RTT_33ohm (22) +#define PHY_DDR3_RON_RTT_30ohm (23) +#define PHY_DDR3_RON_RTT_28ohm (24) +#define PHY_DDR3_RON_RTT_26ohm (25) +#define PHY_DDR3_RON_RTT_25ohm (26) +#define PHY_DDR3_RON_RTT_23ohm (27) +#define PHY_DDR3_RON_RTT_22ohm (28) +#define PHY_DDR3_RON_RTT_21ohm (29) +#define PHY_DDR3_RON_RTT_20ohm (30) +#define PHY_DDR3_RON_RTT_19ohm (31) + +#define PHY_DDR4_LPDDR3_RON_RTT_DISABLE (0) +#define PHY_DDR4_LPDDR3_RON_RTT_480ohm (1) +#define PHY_DDR4_LPDDR3_RON_RTT_240ohm (2) +#define PHY_DDR4_LPDDR3_RON_RTT_160ohm (3) +#define PHY_DDR4_LPDDR3_RON_RTT_120ohm (4) +#define PHY_DDR4_LPDDR3_RON_RTT_96ohm (5) +#define PHY_DDR4_LPDDR3_RON_RTT_80ohm (6) +#define PHY_DDR4_LPDDR3_RON_RTT_68ohm (7) +#define PHY_DDR4_LPDDR3_RON_RTT_60ohm (16) +#define PHY_DDR4_LPDDR3_RON_RTT_53ohm (17) +#define PHY_DDR4_LPDDR3_RON_RTT_48ohm (18) +#define PHY_DDR4_LPDDR3_RON_RTT_43ohm (19) +#define PHY_DDR4_LPDDR3_RON_RTT_40ohm (20) +#define PHY_DDR4_LPDDR3_RON_RTT_37ohm (21) +#define PHY_DDR4_LPDDR3_RON_RTT_34ohm (22) +#define PHY_DDR4_LPDDR3_RON_RTT_32ohm (23) +#define PHY_DDR4_LPDDR3_RON_RTT_30ohm (24) +#define PHY_DDR4_LPDDR3_RON_RTT_28ohm (25) +#define PHY_DDR4_LPDDR3_RON_RTT_26ohm (26) +#define PHY_DDR4_LPDDR3_RON_RTT_25ohm (27) +#define PHY_DDR4_LPDDR3_RON_RTT_24ohm (28) +#define PHY_DDR4_LPDDR3_RON_RTT_22ohm (29) +#define PHY_DDR4_LPDDR3_RON_RTT_21ohm (30) +#define PHY_DDR4_LPDDR3_RON_RTT_20ohm (31) + +/* noc registers define */ +#define DDRCONF 0x8 +#define DDRTIMING 0xc +#define DDRMODE 0x10 +#define READLATENCY 0x14 +#define AGING0 0x18 +#define AGING1 0x1c +#define AGING2 0x20 +#define AGING3 0x24 +#define AGING4 0x28 +#define AGING5 0x2c +#define ACTIVATE 0x38 +#define DEVTODEV 0x3c +#define DDR4TIMING 0x40 + +/* DDR GRF */ +#define DDR_GRF_CON(n) (0 + (n) * 4) +#define DDR_GRF_STATUS_BASE (0X100) +#define DDR_GRF_STATUS(n) (DDR_GRF_STATUS_BASE + (n) * 4) + +/* + * sys_reg bitfield struct + * [31] row_3_4_ch1 + * [30] row_3_4_ch0 + * [29:28] chinfo + * [27] rank_ch1 + * [26:25] col_ch1 + * [24] bk_ch1 + * [23:22] cs0_row_ch1 + * [21:20] cs1_row_ch1 + * [19:18] bw_ch1 + * [17:16] dbw_ch1; + * [15:13] ddrtype + * [12] channelnum + * [11] rank_ch0 + * [10:9] col_ch0 + * [8] bk_ch0 + * [7:6] cs0_row_ch0 + * [5:4] cs1_row_ch0 + * [3:2] bw_ch0 + * [1:0] dbw_ch0 +*/ +#define SYS_REG_ENC_ROW_3_4(n) ((n) << 30) +#define SYS_REG_DEC_ROW_3_4(n) ((n >> 30) & 0x1) +#define SYS_REG_ENC_CHINFO() (1 << 28) +#define SYS_REG_ENC_DDRTYPE(n) ((n) << 13) +#define SYS_REG_ENC_NUM_CH(n) (((n) - 1) << 12) +#define SYS_REG_DEC_NUM_CH(n) (1 + ((n >> 12) & 0x1)) +#define SYS_REG_ENC_RANK(n) (((n) - 1) << 11) +#define SYS_REG_DEC_RANK(n) (1 + ((n >> 11) & 0x1)) +#define SYS_REG_ENC_COL(n) (((n) - 9) << 9) +#define SYS_REG_DEC_COL(n) (9 + ((n >> 9) & 0x3)) +#define SYS_REG_ENC_BK(n) (((n) == 3 ? 0 : 1) << 8) +#define SYS_REG_DEC_BK(n) (3 - ((n >> 8) & 0x1)) +#define SYS_REG_ENC_CS0_ROW(n) (((n) - 13) << 6) +#define SYS_REG_DEC_CS0_ROW(n) (13 + ((n >> 6) & 0x3)) +#define SYS_REG_ENC_CS1_ROW(n) (((n) - 13) << 4) +#define SYS_REG_DEC_CS1_ROW(n) (13 + ((n >> 4) & 0x3)) +#define SYS_REG_ENC_BW(n) ((2 >> (n)) << 2) +#define SYS_REG_DEC_BW(n) (2 >> ((n >> 2) & 0x3)) +#define SYS_REG_ENC_DBW(n) ((2 >> (n)) << 0) +#define SYS_REG_DEC_DBW(n) (2 >> ((n >> 0) & 0x3)) + +/* CRU_SOFTRESET_CON5 */ +#define ddrphy_psrstn_req(n) (((0x1 << 15) << 16) | (n << 15)) +#define ddrphy_srstn_req(n) (((0x1 << 14) << 16) | (n << 14)) +#define ddrctrl_psrstn_req(n) (((0x1 << 13) << 16) | (n << 13)) +#define ddrctrl_srstn_req(n) (((0x1 << 12) << 16) | (n << 12)) +#define ddrmsch_srstn_req(n) (((0x1 << 11) << 16) | (n << 11)) +#define msch_srstn_req(n) (((0x1 << 9) << 16) | (n << 9)) +#define dfimon_srstn_req(n) (((0x1 << 8) << 16) | (n << 8)) +#define grf_ddr_srstn_req(n) (((0x1 << 7) << 16) | (n << 7)) +/* CRU_SOFTRESET_CON9 */ +#define ddrctrl_asrstn_req(n) (((0x1 << 9) << 16) | (n << 9)) + +/* CRU register */ +#define CRU_PLL_CON(pll_id, n) ((pll_id) * 0x20 + (n) * 4) +#define CRU_MODE (0x80) +#define CRU_GLB_CNT_TH (0x90) +#define CRU_CLKSEL_CON_BASE 0x100 +#define CRU_CLKSELS_CON(i) (CRU_CLKSEL_CON_BASE + ((i) * 4)) +#define CRU_CLKGATE_CON_BASE 0x200 +#define CRU_CLKGATE_CON(i) (CRU_CLKGATE_CON_BASE + ((i) * 4)) +#define CRU_CLKSFTRST_CON_BASE 0x300 +#define CRU_CLKSFTRST_CON(i) (CRU_CLKSFTRST_CON_BASE + ((i) * 4)) + +/* CRU_PLL_CON0 */ +#define PB(n) ((0x1 << (15 + 16)) | ((n) << 15)) +#define POSTDIV1(n) ((0x7 << (12 + 16)) | ((n) << 12)) +#define FBDIV(n) ((0xFFF << 16) | (n)) + +/* CRU_PLL_CON1 */ +#define RSTMODE(n) ((0x1 << (15 + 16)) | ((n) << 15)) +#define RST(n) ((0x1 << (14 + 16)) | ((n) << 14)) +#define PD(n) ((0x1 << (13 + 16)) | ((n) << 13)) +#define DSMPD(n) ((0x1 << (12 + 16)) | ((n) << 12)) +#define LOCK(n) (((n) >> 10) & 0x1) +#define POSTDIV2(n) ((0x7 << (6 + 16)) | ((n) << 6)) +#define REFDIV(n) ((0x3F << 16) | (n)) + +union noc_ddrtiming { + u32 d32; + struct { + unsigned acttoact:6; + unsigned rdtomiss:6; + unsigned wrtomiss:6; + unsigned burstlen:3; + unsigned rdtowr:5; + unsigned wrtord:5; + unsigned bwratio:1; + } b; +} NOC_TIMING_T; + +union noc_activate { + u32 d32; + struct { + unsigned rrd:4; + unsigned faw:6; + unsigned fawbank:1; + unsigned reserved1:21; + } b; +}; + +union noc_devtodev { + u32 d32; + struct { + unsigned busrdtord:2; + unsigned busrdtowr:2; + unsigned buswrtord:2; + unsigned reserved2:26; + } b; +}; + +union noc_ddr4timing { + u32 d32; + struct { + unsigned ccdl:3; + unsigned wrtordl:5; + unsigned rrdl:4; + unsigned reserved2:20; + } b; +}; + +union noc_ddrmode { + u32 d32; + struct { + unsigned autoprecharge:1; + unsigned bwratioextended:1; + unsigned reserved3:30; + } b; +}; + +u16 ddr_cfg_2_rbc[] = { + /*************************** + * [5:4] row(13+n) + * [3] cs(0:0 cs, 1:2 cs) + * [2] bank(0:0bank,1:8bank) + * [1:0] col(11+n) + ****************************/ + /* row, cs, bank, col */ + ((3 << 4) | (0 << 3) | (1 << 2) | 0), + ((3 << 4) | (0 << 3) | (1 << 2) | 1), + ((2 << 4) | (0 << 3) | (1 << 2) | 2), + ((3 << 4) | (0 << 3) | (1 << 2) | 2), + ((2 << 4) | (0 << 3) | (1 << 2) | 3), + ((3 << 4) | (1 << 3) | (1 << 2) | 0), + ((3 << 4) | (1 << 3) | (1 << 2) | 1), + ((2 << 4) | (1 << 3) | (1 << 2) | 2), + ((3 << 4) | (0 << 3) | (0 << 2) | 1), + ((2 << 4) | (0 << 3) | (1 << 2) | 1), +}; + +u16 ddr4_cfg_2_rbc[] = { + /*************************** + * [6] cs 0:0cs 1:2 cs + * [5:3] row(13+n) + * [2] cs(0:0 cs, 1:2 cs) + * [1] bw 0: 16bit 1:32bit + * [0] diebw 0:8bit 1:16bit + ***************************/ + /* cs, row, cs, bw, diebw */ + ((0 << 6) | (3 << 3) | (0 << 2) | (1 << 1) | 0), + ((1 << 6) | (2 << 3) | (0 << 2) | (1 << 1) | 0), + ((0 << 6) | (4 << 3) | (0 << 2) | (0 << 1) | 0), + ((1 << 6) | (3 << 3) | (0 << 2) | (0 << 1) | 0), + ((0 << 6) | (4 << 3) | (0 << 2) | (1 << 1) | 1), + ((1 << 6) | (3 << 3) | (0 << 2) | (1 << 1) | 1), + ((1 << 6) | (4 << 3) | (0 << 2) | (0 << 1) | 1), + ((0 << 6) | (2 << 3) | (1 << 2) | (1 << 1) | 0), + ((0 << 6) | (3 << 3) | (1 << 2) | (0 << 1) | 0), + ((0 << 6) | (3 << 3) | (1 << 2) | (1 << 1) | 1), + ((0 << 6) | (4 << 3) | (1 << 2) | (0 << 1) | 1), +}; + +u32 addrmap[21][9] = { + /* map0 map1 map2 map3 map4 map5 map6 map7 map8 */ + {22, 0x00070707, 0x00000000, 0x1f000000, 0x00001f1f, 0x06060606, + 0x06060606, 0x00000f0f, 0x3f3f}, + {23, 0x00080808, 0x00000000, 0x00000000, 0x00001f1f, 0x07070707, + 0x07070707, 0x00000f0f, 0x3f3f}, + {23, 0x00090909, 0x00000000, 0x00000000, 0x00001f00, 0x08080808, + 0x0f080808, 0x00000f0f, 0x3f3f}, + {24, 0x00090909, 0x00000000, 0x00000000, 0x00001f00, 0x08080808, + 0x08080808, 0x00000f0f, 0x3f3f}, + {24, 0x000a0a0a, 0x00000000, 0x00000000, 0x00000000, 0x09090909, + 0x0f090909, 0x00000f0f, 0x3f3f}, + {6, 0x00070707, 0x00000000, 0x1f000000, 0x00001f1f, 0x07070707, + 0x07070707, 0x00000f0f, 0x3f3f}, + {7, 0x00080808, 0x00000000, 0x00000000, 0x00001f1f, 0x08080808, + 0x08080808, 0x00000f0f, 0x3f3f}, + {8, 0x00090909, 0x00000000, 0x00000000, 0x00001f00, 0x09090909, + 0x0f090909, 0x00000f0f, 0x3f3f}, + {22, 0x001f0808, 0x00000000, 0x00000000, 0x00001f1f, 0x06060606, + 0x06060606, 0x00000f0f, 0x3f3f}, + {23, 0x00080808, 0x00000000, 0x00000000, 0x00001f1f, 0x07070707, + 0x0f070707, 0x00000f0f, 0x3f3f}, + + {24, 0x003f0a0a, 0x01010100, 0x01010101, 0x00001f1f, 0x08080808, + 0x08080808, 0x00000f0f, 0x0801}, + {23, 0x003f0a0a, 0x01010100, 0x01010101, 0x00001f1f, 0x08080808, + 0x0f080808, 0x00000f0f, 0x0801}, + {24, 0x003f0909, 0x00000007, 0x1f000000, 0x00001f1f, 0x07070707, + 0x07070707, 0x00000f07, 0x0700}, + {23, 0x003f0909, 0x00000007, 0x1f000000, 0x00001f1f, 0x07070707, + 0x07070707, 0x00000f0f, 0x0700}, + {24, 0x003f0909, 0x01010100, 0x01010101, 0x00001f1f, 0x07070707, + 0x07070707, 0x00000f07, 0x3f01}, + {23, 0x003f0909, 0x01010100, 0x01010101, 0x00001f1f, 0x07070707, + 0x07070707, 0x00000f0f, 0x3f01}, + {24, 0x003f0808, 0x00000007, 0x1f000000, 0x00001f1f, 0x06060606, + 0x06060606, 0x00000f06, 0x3f00}, + {8, 0x003f0a0a, 0x01010100, 0x01010101, 0x00001f1f, 0x09090909, + 0x0f090909, 0x00000f0f, 0x0801}, + {7, 0x003f0909, 0x00000007, 0x1f000000, 0x00001f1f, 0x08080808, + 0x08080808, 0x00000f0f, 0x0700}, + {7, 0x003f0909, 0x01010100, 0x01010101, 0x00001f1f, 0x08080808, + 0x08080808, 0x00000f0f, 0x3f01}, + + {6, 0x003f0808, 0x00000007, 0x1f000000, 0x00001f1f, 0x07070707, + 0x07070707, 0x00000f07, 0x3f00} +}; + +struct rk3328_msch_timings { + union noc_ddrtiming ddrtiming; + union noc_ddrmode ddrmode; + u32 readlatency; + union noc_activate activate; + union noc_devtodev devtodev; + union noc_ddr4timing ddr4timing; + u32 agingx0; +}; + +struct rk3328_msch_regs { + u32 coreid; + u32 revisionid; + u32 ddrconf; + u32 ddrtiming; + u32 ddrmode; + u32 readlatency; + u32 aging0; + u32 aging1; + u32 aging2; + u32 aging3; + u32 aging4; + u32 aging5; + u32 reserved[2]; + u32 activate; + u32 devtodev; + u32 ddr4_timing; +}; + +struct rk3328_ddr_grf_regs { + u32 ddr_grf_con[4]; + u32 reserved[(0x100 - 0x10) / 4]; + u32 ddr_grf_status[11]; +}; + +struct rk3328_ddr_pctl_regs { + u32 pctl[30][2]; +}; + +struct rk3328_ddr_phy_regs { + u32 phy[5][2]; +}; + +struct rk3328_ddr_skew { + u32 a0_a1_skew[15]; + u32 cs0_dm0_skew[11]; + u32 cs0_dm1_skew[11]; + u32 cs0_dm2_skew[11]; + u32 cs0_dm3_skew[11]; + u32 cs1_dm0_skew[11]; + u32 cs1_dm1_skew[11]; + u32 cs1_dm2_skew[11]; + u32 cs1_dm3_skew[11]; +}; + +struct rk3328_sdram_channel { + unsigned int rank; + unsigned int col; + /* 3:8bank, 2:4bank */ + unsigned int bk; + /* channel buswidth, 2:32bit, 1:16bit, 0:8bit */ + unsigned int bw; + /* die buswidth, 2:32bit, 1:16bit, 0:8bit */ + unsigned int dbw; + unsigned int row_3_4; + unsigned int cs0_row; + unsigned int cs1_row; + unsigned int ddrconfig; + struct rk3328_msch_timings noc_timings; +}; + +struct rk3328_sdram_params { + struct rk3328_sdram_channel ch; + unsigned int ddr_freq; + unsigned int dramtype; + unsigned int odt; + struct rk3328_ddr_pctl_regs pctl_regs; + struct rk3328_ddr_phy_regs phy_regs; + struct rk3328_ddr_skew skew; +}; + +#define PHY_REG(base, n) (base + 4 * (n)) + +#endif diff --git a/drivers/ram/rockchip/sdram_rk3328.c b/drivers/ram/rockchip/sdram_rk3328.c index 9637a35..863b120 100644 --- a/drivers/ram/rockchip/sdram_rk3328.c +++ b/drivers/ram/rockchip/sdram_rk3328.c @@ -3,23 +3,988 @@ * * SPDX-License-Identifier: GPL-2.0 */ - #include <common.h> +#include <clk.h> +#include <debug_uart.h> #include <dm.h> +#include <dt-structs.h> #include <ram.h> +#include <regmap.h> #include <syscon.h> +#include <asm/io.h> #include <asm/arch/clock.h> +#include <asm/arch/cru_rk3328.h> #include <asm/arch/grf_rk3328.h> #include <asm/arch/sdram_common.h> +#include <asm/arch/sdram_rk3328.h> +#include <asm/arch/uart.h>
DECLARE_GLOBAL_DATA_PTR; struct dram_info { +#ifdef CONFIG_TPL_BUILD + struct rk3328_ddr_pctl_regs *pctl; + struct rk3328_ddr_phy_regs *phy; + struct clk ddr_clk; + struct rk3328_cru *cru; + struct rk3328_msch_regs *msch; + struct rk3328_ddr_grf_regs *ddr_grf; +#endif struct ram_info info; struct rk3328_grf_regs *grf; };
+#ifdef CONFIG_TPL_BUILD + +struct rk3328_sdram_channel sdram_ch; + +struct rockchip_dmc_plat { +#if CONFIG_IS_ENABLED(OF_PLATDATA) + struct dtd_rockchip_rk3328_dmc dtplat; +#else + struct rk3328_sdram_params sdram_params; +#endif + struct regmap *map; +}; + +#if CONFIG_IS_ENABLED(OF_PLATDATA) +static int conv_of_platdata(struct udevice *dev) +{ + struct rockchip_dmc_plat *plat = dev_get_platdata(dev); + struct dtd_rockchip_rk3328_dmc *dtplat = &plat->dtplat; + int ret; + + ret = regmap_init_mem_platdata(dev, dtplat->reg, + ARRAY_SIZE(dtplat->reg) / 2, + &plat->map); + if (ret) + return ret; + + return 0; +} +#endif + +static void rkclk_ddr_reset(struct dram_info *dram, + u32 ctl_srstn, u32 ctl_psrstn, + u32 phy_srstn, u32 phy_psrstn) +{ + writel(ddrctrl_srstn_req(ctl_srstn) | ddrctrl_psrstn_req(ctl_psrstn) | + ddrphy_srstn_req(phy_srstn) | ddrphy_psrstn_req(phy_psrstn), + &dram->cru->softrst_con[5]); + writel(ddrctrl_asrstn_req(ctl_srstn), &dram->cru->softrst_con[9]); +} + +static void rkclk_set_dpll(struct dram_info *dram, unsigned int mhz) +{ + unsigned int refdiv, postdiv1, postdiv2, fbdiv; + int delay = 1000; + + refdiv = 1; + if (mhz <= 300) { + postdiv1 = 4; + postdiv2 = 2; + } else if (mhz <= 400) { + postdiv1 = 6; + postdiv2 = 1; + } else if (mhz <= 600) { + postdiv1 = 4; + postdiv2 = 1; + } else if (mhz <= 800) { + postdiv1 = 3; + postdiv2 = 1; + } else if (mhz <= 1600) { + postdiv1 = 2; + postdiv2 = 1; + } else { + postdiv1 = 1; + postdiv2 = 1; + } + fbdiv = (mhz * refdiv * postdiv1 * postdiv2) / 24; + + writel(((0x1 << 4) << 16) | (0 << 4), &dram->cru->mode_con); + writel(POSTDIV1(postdiv1) | FBDIV(fbdiv), &dram->cru->dpll_con[0]); + writel(DSMPD(1) | POSTDIV2(postdiv2) | REFDIV(refdiv), + &dram->cru->dpll_con[1]); + + while (delay > 0) { + udelay(1); + if (LOCK(readl(&dram->cru->dpll_con[1]))) + break; + delay--; + } + + writel(((0x1 << 4) << 16) | (1 << 4), &dram->cru->mode_con); +} + +static void rkclk_configure_ddr(struct dram_info *dram, + struct rk3328_sdram_params *sdram_params) +{ + void __iomem *phy_base = dram->phy; + + /* choose DPLL for ddr clk source */ + clrbits_le32(PHY_REG(phy_base, 0xef), 1 << 7); + + /* for inno ddr phy need 2*freq */ + rkclk_set_dpll(dram, sdram_params->ddr_freq * 2); +} + +static void phy_soft_reset(struct dram_info *dram) +{ + void __iomem *phy_base = dram->phy; + + clrbits_le32(PHY_REG(phy_base, 0), 0x3 << 2); + udelay(1); + setbits_le32(PHY_REG(phy_base, 0), ANALOG_DERESET); + udelay(5); + setbits_le32(PHY_REG(phy_base, 0), DIGITAL_DERESET); + udelay(1); +} + +static int pctl_cfg(struct dram_info *dram, + struct rk3328_sdram_params *sdram_params) +{ + u32 i; + void __iomem *pctl_base = dram->pctl; + + for (i = 0; sdram_params->pctl_regs.pctl[i][0] != 0xFFFFFFFF; i++) { + writel(sdram_params->pctl_regs.pctl[i][1], + pctl_base + sdram_params->pctl_regs.pctl[i][0]); + } + clrsetbits_le32(pctl_base + DDR_PCTL2_PWRTMG, + (0xff << 16) | 0x1f, + ((SR_IDLE & 0xff) << 16) | (PD_IDLE & 0x1f)); + /* + * dfi_lp_en_pd=1,dfi_lp_wakeup_pd=2 + * hw_lp_idle_x32=1 + */ + if (sdram_params->dramtype == LPDDR3) { + setbits_le32(pctl_base + DDR_PCTL2_DFILPCFG0, 1); + clrsetbits_le32(pctl_base + DDR_PCTL2_DFILPCFG0, + 0xf << 4, + 2 << 4); + } + clrsetbits_le32(pctl_base + DDR_PCTL2_HWLPCTL, + 0xfff << 16, + 1 << 16); + /* disable zqcs */ + setbits_le32(pctl_base + DDR_PCTL2_ZQCTL0, 1u << 31); + setbits_le32(pctl_base + 0x2000 + DDR_PCTL2_ZQCTL0, 1u << 31); + + return 0; +} + +/* return ddrconfig value + * (-1), find ddrconfig fail + * other, the ddrconfig value + * only support cs0_row >= cs1_row + */ +static unsigned int calculate_ddrconfig( + struct rk3328_sdram_params *sdram_params) +{ + u32 cs, bw, die_bw, col, row, bank; + u32 i, tmp; + u32 ddrconf = -1; + + cs = sdram_ch.rank; + bw = sdram_ch.bw; + die_bw = sdram_ch.dbw; + col = sdram_ch.col; + row = sdram_ch.cs0_row; + bank = sdram_ch.bk; + + if (sdram_params->dramtype == DDR4) { + tmp = ((cs - 1) << 6) | ((row - 13) << 3) | (bw & 0x2) | die_bw; + for (i = 10; i < 17; i++) { + if (((tmp & 0x7) == (ddr4_cfg_2_rbc[i - 10] & 0x7)) && + ((tmp & 0x3c) <= (ddr4_cfg_2_rbc[i - 10] & 0x3c)) && + ((tmp & 0x40) <= (ddr4_cfg_2_rbc[i - 10] & 0x40))) { + ddrconf = i; + goto out; + } + } + } else { + if (bank == 2) { + ddrconf = 8; + goto out; + } + + tmp = ((row - 13) << 4) | (1 << 2) | ((bw + col - 11) << 0); + for (i = 0; i < 5; i++) + if (((tmp & 0xf) == (ddr_cfg_2_rbc[i] & 0xf)) && + ((tmp & 0x30) <= (ddr_cfg_2_rbc[i] & 0x30))) { + ddrconf = i; + goto out; + } + } + +out: + if (ddrconf > 20) + printf("calculate_ddrconfig error\n"); + + return ddrconf; +} + +/* n: Unit bytes */ +static void copy_to_reg(u32 *dest, u32 *src, u32 n) +{ + int i; + + for (i = 0; i < n / sizeof(u32); i++) { + writel(*src, dest); + src++; + dest++; + } +} + +/******* + * calculate controller dram address map, and setting to register. + * argument sdram_ch.ddrconf must be right value before + * call this function. + *******/ +static void set_ctl_address_map(struct dram_info *dram, + struct rk3328_sdram_params *sdram_params) +{ + void __iomem *pctl_base = dram->pctl; + + copy_to_reg((u32 *)(pctl_base + DDR_PCTL2_ADDRMAP0), + &addrmap[sdram_ch.ddrconfig][0], 9 * 4); + if ((sdram_params->dramtype == LPDDR3) && (sdram_ch.row_3_4)) + setbits_le32(pctl_base + DDR_PCTL2_ADDRMAP6, 1 << 31); + if ((sdram_params->dramtype == DDR4) && (sdram_ch.bw == 0x1)) + setbits_le32(pctl_base + DDR_PCTL2_PCCFG, 1 << 8); + + if (sdram_ch.rank == 1) + clrsetbits_le32(pctl_base + DDR_PCTL2_ADDRMAP0, 0x1f, 0x1f); +} + +static void phy_dll_bypass_set(struct dram_info *dram, u32 freq) +{ + u32 tmp; + void __iomem *phy_base = dram->phy; + + setbits_le32(PHY_REG(phy_base, 0x13), 1 << 4); + clrbits_le32(PHY_REG(phy_base, 0x14), 1 << 3); + setbits_le32(PHY_REG(phy_base, 0x26), 1 << 4); + clrbits_le32(PHY_REG(phy_base, 0x27), 1 << 3); + setbits_le32(PHY_REG(phy_base, 0x36), 1 << 4); + clrbits_le32(PHY_REG(phy_base, 0x37), 1 << 3); + setbits_le32(PHY_REG(phy_base, 0x46), 1 << 4); + clrbits_le32(PHY_REG(phy_base, 0x47), 1 << 3); + setbits_le32(PHY_REG(phy_base, 0x56), 1 << 4); + clrbits_le32(PHY_REG(phy_base, 0x57), 1 << 3); + + if (freq <= (400 * MHz)) + /* DLL bypass */ + setbits_le32(PHY_REG(phy_base, 0xa4), 0x1f); + else + clrbits_le32(PHY_REG(phy_base, 0xa4), 0x1f); + if (freq <= (680 * MHz)) + tmp = 2; + else + tmp = 1; + writel(tmp, PHY_REG(phy_base, 0x28)); + writel(tmp, PHY_REG(phy_base, 0x38)); + writel(tmp, PHY_REG(phy_base, 0x48)); + writel(tmp, PHY_REG(phy_base, 0x58)); +} + +static void set_ds_odt(struct dram_info *dram, + struct rk3328_sdram_params *sdram_params) +{ + u32 cmd_drv, clk_drv, dqs_drv, dqs_odt; + void __iomem *phy_base = dram->phy; + + if (sdram_params->dramtype == DDR3) { + cmd_drv = PHY_DDR3_RON_RTT_34ohm; + clk_drv = PHY_DDR3_RON_RTT_45ohm; + dqs_drv = PHY_DDR3_RON_RTT_34ohm; + dqs_odt = PHY_DDR3_RON_RTT_225ohm; + } else { + cmd_drv = PHY_DDR4_LPDDR3_RON_RTT_34ohm; + clk_drv = PHY_DDR4_LPDDR3_RON_RTT_43ohm; + dqs_drv = PHY_DDR4_LPDDR3_RON_RTT_34ohm; + dqs_odt = PHY_DDR4_LPDDR3_RON_RTT_240ohm; + } + /* DS */ + writel(cmd_drv, PHY_REG(phy_base, 0x11)); + clrsetbits_le32(PHY_REG(phy_base, 0x12), 0x1f << 3, cmd_drv << 3); + writel(clk_drv, PHY_REG(phy_base, 0x16)); + writel(clk_drv, PHY_REG(phy_base, 0x18)); + writel(dqs_drv, PHY_REG(phy_base, 0x20)); + writel(dqs_drv, PHY_REG(phy_base, 0x2f)); + writel(dqs_drv, PHY_REG(phy_base, 0x30)); + writel(dqs_drv, PHY_REG(phy_base, 0x3f)); + writel(dqs_drv, PHY_REG(phy_base, 0x40)); + writel(dqs_drv, PHY_REG(phy_base, 0x4f)); + writel(dqs_drv, PHY_REG(phy_base, 0x50)); + writel(dqs_drv, PHY_REG(phy_base, 0x5f)); + /* ODT */ + writel(dqs_odt, PHY_REG(phy_base, 0x21)); + writel(dqs_odt, PHY_REG(phy_base, 0x2e)); + writel(dqs_odt, PHY_REG(phy_base, 0x31)); + writel(dqs_odt, PHY_REG(phy_base, 0x3e)); + writel(dqs_odt, PHY_REG(phy_base, 0x41)); + writel(dqs_odt, PHY_REG(phy_base, 0x4e)); + writel(dqs_odt, PHY_REG(phy_base, 0x51)); + writel(dqs_odt, PHY_REG(phy_base, 0x5e)); +} + +static void phy_cfg(struct dram_info *dram, + struct rk3328_sdram_params *sdram_params) +{ + u32 i; + void __iomem *phy_base = dram->phy; + + phy_dll_bypass_set(dram, sdram_params->ddr_freq); + for (i = 0; sdram_params->phy_regs.phy[i][0] != 0xFFFFFFFF; i++) { + writel(sdram_params->phy_regs.phy[i][1], + phy_base + sdram_params->phy_regs.phy[i][0]); + } + if (sdram_ch.bw == 2) { + clrsetbits_le32(PHY_REG(phy_base, 0), 0xf << 4, 0xf << 4); + } else { + clrsetbits_le32(PHY_REG(phy_base, 0), 0xf << 4, 3 << 4); + /* disable DQS2,DQS3 tx dll for saving power */ + clrbits_le32(PHY_REG(phy_base, 0x46), 1 << 3); + clrbits_le32(PHY_REG(phy_base, 0x56), 1 << 3); + } + set_ds_odt(dram, sdram_params); + /* deskew */ + setbits_le32(PHY_REG(phy_base, 2), 8); + copy_to_reg(PHY_REG(phy_base, 0xb0), + &sdram_params->skew.a0_a1_skew[0], 15 * 4); + copy_to_reg(PHY_REG(phy_base, 0x70), + &sdram_params->skew.cs0_dm0_skew[0], 44 * 4); + copy_to_reg(PHY_REG(phy_base, 0xc0), + &sdram_params->skew.cs0_dm1_skew[0], 44 * 4); +} + +static int update_refresh_reg(struct dram_info *dram) +{ + void __iomem *pctl_base = dram->pctl; + u32 ret; + + ret = readl(pctl_base + DDR_PCTL2_RFSHCTL3) ^ (1 << 1); + writel(ret, pctl_base + DDR_PCTL2_RFSHCTL3); + + return 0; +} + +static int data_training(struct dram_info *dram, u32 cs, u32 dramtype) +{ + u32 ret; + u32 dis_auto_zq = 0; + void __iomem *pctl_base = dram->pctl; + void __iomem *phy_base = dram->phy; + + /* disable zqcs */ + if (!(readl(pctl_base + DDR_PCTL2_ZQCTL0) & + (1ul << 31))) { + dis_auto_zq = 1; + setbits_le32(pctl_base + DDR_PCTL2_ZQCTL0, 1 << 31); + } + /* disable auto refresh */ + setbits_le32(pctl_base + DDR_PCTL2_RFSHCTL3, 1); + update_refresh_reg(dram); + + if (dramtype == DDR4) { + clrsetbits_le32(PHY_REG(phy_base, 0x29), 0x3, 0); + clrsetbits_le32(PHY_REG(phy_base, 0x39), 0x3, 0); + clrsetbits_le32(PHY_REG(phy_base, 0x49), 0x3, 0); + clrsetbits_le32(PHY_REG(phy_base, 0x59), 0x3, 0); + } + /* choose training cs */ + clrsetbits_le32(PHY_REG(phy_base, 2), 0x33, (0x20 >> cs)); + /* enable gate training */ + clrsetbits_le32(PHY_REG(phy_base, 2), 0x33, (0x20 >> cs) | 1); + udelay(50); + ret = readl(PHY_REG(phy_base, 0xff)); + /* disable gate training */ + clrsetbits_le32(PHY_REG(phy_base, 2), 0x33, (0x20 >> cs) | 0); + /* restore zqcs */ + if (dis_auto_zq) + clrbits_le32(pctl_base + DDR_PCTL2_ZQCTL0, 1 << 31); + /* restore auto refresh */ + clrbits_le32(pctl_base + DDR_PCTL2_RFSHCTL3, 1); + update_refresh_reg(dram); + + if (dramtype == DDR4) { + clrsetbits_le32(PHY_REG(phy_base, 0x29), 0x3, 0x2); + clrsetbits_le32(PHY_REG(phy_base, 0x39), 0x3, 0x2); + clrsetbits_le32(PHY_REG(phy_base, 0x49), 0x3, 0x2); + clrsetbits_le32(PHY_REG(phy_base, 0x59), 0x3, 0x2); + } + + if (ret & 0x10) { + ret = -1; + } else { + ret = (ret & 0xf) ^ (readl(PHY_REG(phy_base, 0)) >> 4); + ret = (ret == 0) ? 0 : -1; + } + return ret; +} + +/* rank = 1: cs0 + * rank = 2: cs1 + * rank = 3: cs0 & cs1 + * note: be careful of keep mr original val + */ +static int write_mr(struct dram_info *dram, u32 rank, u32 mr_num, u32 arg, + u32 dramtype) +{ + void __iomem *pctl_base = dram->pctl; + + while (readl(pctl_base + DDR_PCTL2_MRSTAT) & MR_WR_BUSY) + continue; + if ((dramtype == DDR3) || (dramtype == DDR4)) { + writel((mr_num << 12) | (rank << 4) | (0 << 0), + pctl_base + DDR_PCTL2_MRCTRL0); + writel(arg, pctl_base + DDR_PCTL2_MRCTRL1); + } else { + writel((rank << 4) | (0 << 0), + pctl_base + DDR_PCTL2_MRCTRL0); + writel((mr_num << 8) | (arg & 0xff), + pctl_base + DDR_PCTL2_MRCTRL1); + } + + setbits_le32(pctl_base + DDR_PCTL2_MRCTRL0, 1u << 31); + while (readl(pctl_base + DDR_PCTL2_MRCTRL0) & (1u << 31)) + continue; + while (readl(pctl_base + DDR_PCTL2_MRSTAT) & MR_WR_BUSY) + continue; + + return 0; +} + +/* + * rank : 1:cs0, 2:cs1, 3:cs0&cs1 + * vrefrate: 4500: 45%, + */ +static int write_vrefdq(struct dram_info *dram, u32 rank, u32 vrefrate, + u32 dramtype) +{ + u32 tccd_l, value; + u32 dis_auto_zq = 0; + void __iomem *pctl_base = dram->pctl; + + if ((dramtype != DDR4) || (vrefrate < 4500) || + (vrefrate > 9200)) + return -1; + + tccd_l = (readl(pctl_base + DDR_PCTL2_DRAMTMG4) >> 16) & 0xf; + tccd_l = (tccd_l - 4) << 10; + + if (vrefrate > 7500) { + /* range 1 */ + value = ((vrefrate - 6000) / 65) | tccd_l; + } else { + /* range 2 */ + value = ((vrefrate - 4500) / 65) | tccd_l | (1 << 6); + } + + /* disable zqcs */ + if (!(readl(pctl_base + DDR_PCTL2_ZQCTL0) & + (1ul << 31))) { + dis_auto_zq = 1; + setbits_le32(pctl_base + DDR_PCTL2_ZQCTL0, 1 << 31); + } + /* disable auto refresh */ + setbits_le32(pctl_base + DDR_PCTL2_RFSHCTL3, 1); + update_refresh_reg(dram); + + /* enable vrefdq calibratin */ + write_mr(dram, rank, 6, value | (1 << 7), dramtype); + udelay(1);/* tvrefdqe */ + /* write vrefdq value */ + write_mr(dram, rank, 6, value | (1 << 7), dramtype); + udelay(1);/* tvref_time */ + write_mr(dram, rank, 6, value | (0 << 7), dramtype); + udelay(1);/* tvrefdqx */ + + /* restore zqcs */ + if (dis_auto_zq) + clrbits_le32(pctl_base + DDR_PCTL2_ZQCTL0, 1 << 31); + /* restore auto refresh */ + clrbits_le32(pctl_base + DDR_PCTL2_RFSHCTL3, 1); + update_refresh_reg(dram); + + return 0; +} + +#define _MAX_(x, y) (x > y ? x : y) + +static void rx_deskew_switch_adjust(struct dram_info *dram) +{ + u32 i, deskew_val; + u32 gate_val = 0; + void __iomem *phy_base = dram->phy; + + for (i = 0; i < 4; i++) + gate_val = _MAX_(readl(PHY_REG(phy_base, 0xfb + i)), gate_val); + + deskew_val = (gate_val >> 3) + 1; + deskew_val = (deskew_val > 0x1f) ? 0x1f : deskew_val; + clrsetbits_le32(PHY_REG(phy_base, 0x6e), 0xc, (deskew_val & 0x3) << 2); + clrsetbits_le32(PHY_REG(phy_base, 0x6f), 0x7 << 4, + (deskew_val & 0x1c) << 2); +} + +static void tx_deskew_switch_adjust(struct dram_info *dram) +{ + void __iomem *phy_base = dram->phy; + + clrsetbits_le32(PHY_REG(phy_base, 0x6e), 0x3, 1); +} + +static void set_ddrconfig(struct dram_info *dram, u32 ddrconfig) +{ + writel(ddrconfig, &dram->msch->ddrconf); +} + +static void dram_all_config(struct dram_info *dram, + struct rk3328_sdram_params *sdram_params) +{ + u32 sys_reg = 0; + + set_ddrconfig(dram, sdram_ch.ddrconfig); + + sys_reg |= SYS_REG_ENC_DDRTYPE(sdram_params->dramtype); + sys_reg |= SYS_REG_ENC_ROW_3_4(sdram_ch.row_3_4); + sys_reg |= SYS_REG_ENC_RANK(sdram_ch.rank); + sys_reg |= SYS_REG_ENC_COL(sdram_ch.col); + sys_reg |= SYS_REG_ENC_BK(sdram_ch.bk); + sys_reg |= SYS_REG_ENC_CS0_ROW(sdram_ch.cs0_row); + if (sdram_ch.cs1_row) + sys_reg |= SYS_REG_ENC_CS1_ROW(sdram_ch.cs1_row); + sys_reg |= SYS_REG_ENC_BW(sdram_ch.bw); + sys_reg |= SYS_REG_ENC_DBW(sdram_ch.dbw); + + writel(sys_reg, &dram->grf->os_reg[2]); + + writel(sdram_ch.noc_timings.ddrtiming.d32, &dram->msch->ddrtiming); + + writel(sdram_ch.noc_timings.ddrmode.d32, &dram->msch->ddrmode); + writel(sdram_ch.noc_timings.readlatency, &dram->msch->readlatency); + + writel(sdram_ch.noc_timings.activate.d32, &dram->msch->activate); + writel(sdram_ch.noc_timings.devtodev.d32, &dram->msch->devtodev); + writel(sdram_ch.noc_timings.ddr4timing.d32, &dram->msch->ddr4_timing); + writel(sdram_ch.noc_timings.agingx0, &dram->msch->aging0); + writel(sdram_ch.noc_timings.agingx0, &dram->msch->aging1); + writel(sdram_ch.noc_timings.agingx0, &dram->msch->aging2); + writel(sdram_ch.noc_timings.agingx0, &dram->msch->aging3); + writel(sdram_ch.noc_timings.agingx0, &dram->msch->aging4); + writel(sdram_ch.noc_timings.agingx0, &dram->msch->aging5); +} + +static void enable_low_power(struct dram_info *dram, + struct rk3328_sdram_params *sdram_params) +{ + void __iomem *pctl_base = dram->pctl; + + /* enable upctl2 axi clock auto gating */ + writel(0x00800000, &dram->ddr_grf->ddr_grf_con[0]); + writel(0x20012001, &dram->ddr_grf->ddr_grf_con[2]); + /* enable upctl2 core clock auto gating */ + writel(0x001e001a, &dram->ddr_grf->ddr_grf_con[2]); + /* enable sr, pd */ + if (PD_IDLE == 0) + clrbits_le32(pctl_base + DDR_PCTL2_PWRCTL, (1 << 1)); + else + setbits_le32(pctl_base + DDR_PCTL2_PWRCTL, (1 << 1)); + if (SR_IDLE == 0) + clrbits_le32(pctl_base + DDR_PCTL2_PWRCTL, 1); + else + setbits_le32(pctl_base + DDR_PCTL2_PWRCTL, 1); + setbits_le32(pctl_base + DDR_PCTL2_PWRCTL, (1 << 3)); +} + +static int sdram_init(struct dram_info *dram, + struct rk3328_sdram_params *sdram_params, u32 pre_init) +{ + void __iomem *pctl_base = dram->pctl; + + rkclk_ddr_reset(dram, 1, 1, 1, 1); + udelay(10); + /* + * dereset ddr phy psrstn to config pll, + * if using phy pll psrstn must be dereset + * before config pll + */ + rkclk_ddr_reset(dram, 1, 1, 1, 0); + rkclk_configure_ddr(dram, sdram_params); + if (pre_init == 0) { + switch (sdram_params->dramtype) { + case DDR3: + printf("DDR3\n"); + break; + case DDR4: + printf("DDR4\n"); + break; + case LPDDR3: + default: + printf("LPDDR3\n"); + break; + } + } + /* release phy srst to provide clk to ctrl */ + rkclk_ddr_reset(dram, 1, 1, 0, 0); + udelay(10); + phy_soft_reset(dram); + /* release ctrl presetn, and config ctl registers */ + rkclk_ddr_reset(dram, 1, 0, 0, 0); + pctl_cfg(dram, sdram_params); + sdram_ch.ddrconfig = calculate_ddrconfig(sdram_params); + set_ctl_address_map(dram, sdram_params); + phy_cfg(dram, sdram_params); + + /* enable dfi_init_start to init phy after ctl srstn deassert */ + setbits_le32(pctl_base + DDR_PCTL2_DFIMISC, (1 << 5) | (1 << 4)); + rkclk_ddr_reset(dram, 0, 0, 0, 0); + /* wait for dfi_init_done and dram init complete */ + while ((readl(pctl_base + DDR_PCTL2_STAT) & 0x7) == 0) + continue; + + /* do ddr gate training */ + if (data_training(dram, 0, sdram_params->dramtype) != 0) { + printf("data training error\n"); + return -1; + } + + if (sdram_params->dramtype == DDR4) + write_vrefdq(dram, 0x3, 5670, sdram_params->dramtype); + + if (pre_init == 0) { + rx_deskew_switch_adjust(dram); + tx_deskew_switch_adjust(dram); + } + + dram_all_config(dram, sdram_params); + enable_low_power(dram, sdram_params); + + return 0; +} + +static u64 dram_detect_cap(struct dram_info *dram, + struct rk3328_sdram_params *sdram_params, + unsigned char channel) +{ + void __iomem *pctl_base = dram->pctl; + + /* + * for ddr3: ddrconf = 3 + * for ddr4: ddrconf = 12 + * for lpddr3: ddrconf = 3 + * default bw = 1 + */ + u32 bk, bktmp; + u32 col, coltmp; + u32 row, rowtmp, row_3_4; + void __iomem *test_addr, *test_addr1; + u32 dbw; + u32 cs; + u32 bw = 1; + u64 cap = 0; + u32 dram_type = sdram_params->dramtype; + u32 pwrctl; + + if (dram_type != DDR4) { + /* detect col and bk for ddr3/lpddr3 */ + coltmp = 12; + bktmp = 3; + rowtmp = 16; + + for (col = coltmp; col >= 9; col -= 1) { + writel(0, SDRAM_ADDR); + test_addr = (void __iomem *)(SDRAM_ADDR + + (1ul << (col + bw - 1ul))); + writel(PATTERN, test_addr); + if ((readl(test_addr) == PATTERN) && + (readl(SDRAM_ADDR) == 0)) + break; + } + if (col == 8) { + printf("col error\n"); + goto cap_err; + } + + test_addr = (void __iomem *)(SDRAM_ADDR + + (1ul << (coltmp + bktmp + bw - 1ul))); + writel(0, SDRAM_ADDR); + writel(PATTERN, test_addr); + if ((readl(test_addr) == PATTERN) && + (readl(SDRAM_ADDR) == 0)) + bk = 3; + else + bk = 2; + if (dram_type == LPDDR3) + dbw = 2; + else + dbw = 1; + } else { + /* detect bg for ddr4 */ + coltmp = 10; + bktmp = 4; + rowtmp = 17; + + col = 10; + bk = 2; + test_addr = (void __iomem *)(SDRAM_ADDR + + (1ul << (coltmp + bw + 1ul))); + writel(0, SDRAM_ADDR); + writel(PATTERN, test_addr); + if ((readl(test_addr) == PATTERN) && + (readl(SDRAM_ADDR) == 0)) + dbw = 0; + else + dbw = 1; + } + /* detect row */ + for (row = rowtmp; row > 12; row--) { + writel(0, SDRAM_ADDR); + test_addr = (void __iomem *)(SDRAM_ADDR + + (1ul << (row + bktmp + coltmp + bw - 1ul))); + writel(PATTERN, test_addr); + if ((readl(test_addr) == PATTERN) && + (readl(SDRAM_ADDR) == 0)) + break; + } + if (row == 12) { + printf("row error"); + goto cap_err; + } + /* detect row_3_4 */ + test_addr = SDRAM_ADDR; + test_addr1 = (void __iomem *)(SDRAM_ADDR + + (0x3ul << (row + bktmp + coltmp + bw - 1ul - 1ul))); + + writel(0, test_addr); + writel(PATTERN, test_addr1); + if ((readl(test_addr) == 0) && + (readl(test_addr1) == PATTERN)) + row_3_4 = 0; + else + row_3_4 = 1; + + /* disable auto low-power */ + pwrctl = readl(pctl_base + DDR_PCTL2_PWRCTL); + writel(0, pctl_base + DDR_PCTL2_PWRCTL); + + /* bw and cs detect using phy read gate training */ + if (data_training(dram, 1, dram_type) == 0) + cs = 1; + else + cs = 0; + + bw = 2; + + /* restore auto low-power */ + writel(pwrctl, pctl_base + DDR_PCTL2_PWRCTL); + + sdram_ch.rank = cs + 1; + sdram_ch.col = col; + sdram_ch.bk = bk; + sdram_ch.dbw = dbw; + sdram_ch.bw = bw; + sdram_ch.cs0_row = row; + if (cs) + sdram_ch.cs1_row = row; + else + sdram_ch.cs1_row = 0; + sdram_ch.row_3_4 = row_3_4; + + if (dram_type == DDR4) + cap = 1llu << (cs + row + bk + col + ((dbw == 0) ? 2 : 1) + bw); + else + cap = 1llu << (cs + row + bk + col + bw); + + return cap; + +cap_err: + return 0; +} + +static u32 remodify_sdram_params(struct rk3328_sdram_params *sdram_params) +{ + u32 tmp = 0, tmp_adr = 0, i; + + for (i = 0; sdram_params->pctl_regs.pctl[i][0] != 0xFFFFFFFF; i++) { + if (sdram_params->pctl_regs.pctl[i][0] == 0) { + tmp = sdram_params->pctl_regs.pctl[i][1];/* MSTR */ + tmp_adr = i; + } + } + + tmp &= ~((3ul << 30) | (3ul << 24) | (3ul << 12)); + + switch (sdram_ch.dbw) { + case 2: + tmp |= (3ul << 30); + break; + case 1: + tmp |= (2ul << 30); + break; + case 0: + default: + tmp |= (1ul << 30); + break; + } + + if (sdram_ch.rank == 2) + tmp |= 3 << 24; + else + tmp |= 1 << 24; + + tmp |= (2 - sdram_ch.bw) << 12; + + sdram_params->pctl_regs.pctl[tmp_adr][1] = tmp; + + if (sdram_ch.bw == 2) + sdram_ch.noc_timings.ddrtiming.b.bwratio = 0; + else + sdram_ch.noc_timings.ddrtiming.b.bwratio = 1; + + return 0; +} + +static int dram_detect_cs1_row(struct rk3328_sdram_params *sdram_params, + unsigned char channel) +{ + u32 ret = 0; + u32 cs1_bit; + void __iomem *test_addr, *cs1_addr; + u32 row, bktmp, coltmp, bw; + u32 ddrconf = sdram_ch.ddrconfig; + + if (sdram_ch.rank == 2) { + cs1_bit = addrmap[ddrconf][0] + 8; + + if (cs1_bit > 31) + goto out; + + cs1_addr = (void __iomem *)(1ul << cs1_bit); + if (cs1_bit < 20) + cs1_bit = 1; + else + cs1_bit = 0; + + if (sdram_params->dramtype == DDR4) { + if (sdram_ch.dbw == 0) + bktmp = sdram_ch.bk + 2; + else + bktmp = sdram_ch.bk + 1; + } else { + bktmp = sdram_ch.bk; + } + bw = sdram_ch.bw; + coltmp = sdram_ch.col; + + /* detect cs1 row */ + for (row = sdram_ch.cs0_row; row > 12; row--) { + test_addr = (void __iomem *)(SDRAM_ADDR + cs1_addr + + (1ul << (row + cs1_bit + bktmp + + coltmp + bw - 1ul))); + writel(0, SDRAM_ADDR + cs1_addr); + writel(PATTERN, test_addr); + if ((readl(test_addr) == PATTERN) && + (readl(SDRAM_ADDR + cs1_addr) == 0)) { + ret = row; + break; + } + } + } + +out: + return ret; +} + +static int sdram_init_detect(struct dram_info *dram, + struct rk3328_sdram_params *sdram_params) +{ + debug("Starting SDRAM initialization...\n"); + + memcpy(&sdram_ch, &sdram_params->ch, + sizeof(struct rk3328_sdram_channel)); + + sdram_init(dram, sdram_params, 1); + dram_detect_cap(dram, sdram_params, 0); + + /* modify bw, cs related timing */ + remodify_sdram_params(sdram_params); + /* reinit sdram by real dram cap */ + sdram_init(dram, sdram_params, 0); + + /* redetect cs1 row */ + sdram_ch.cs1_row = + dram_detect_cs1_row(sdram_params, 0); + + return 0; +} + +static int rk3328_dmc_init(struct udevice *dev) +{ + struct dram_info *priv = dev_get_priv(dev); + struct rockchip_dmc_plat *plat = dev_get_platdata(dev); + int ret; + +#if !CONFIG_IS_ENABLED(OF_PLATDATA) + struct rk3328_sdram_params *params = &plat->sdram_params; +#else + struct dtd_rockchip_rk3328_dmc *dtplat = &plat->dtplat; + struct rk3328_sdram_params *params = + (void *)dtplat->rockchip_sdram_params; + + ret = conv_of_platdata(dev); + if (ret) + return ret; +#endif + priv->phy = regmap_get_range(plat->map, 0); + priv->pctl = regmap_get_range(plat->map, 1); + priv->grf = regmap_get_range(plat->map, 2); + priv->cru = regmap_get_range(plat->map, 3); + priv->msch = regmap_get_range(plat->map, 4); + priv->ddr_grf = regmap_get_range(plat->map, 5); + + debug("%s phy %p pctrl %p grf %p cru %p msch %p ddr_grf %p\n", + __func__, priv->phy, priv->pctl, priv->grf, priv->cru, + priv->msch, priv->ddr_grf); + ret = sdram_init_detect(priv, params); + if (ret < 0) { + printf("%s DRAM init failed%d\n", __func__, ret); + return ret; + } + + return 0; +} + +static int rk3328_dmc_ofdata_to_platdata(struct udevice *dev) +{ +#if !CONFIG_IS_ENABLED(OF_PLATDATA) + struct rockchip_dmc_plat *plat = dev_get_platdata(dev); + int ret; + + ret = dev_read_u32_array(dev, "rockchip,sdram-params", + (u32 *)&plat->sdram_params, + sizeof(plat->sdram_params) / sizeof(u32)); + if (ret) { + printf("%s: Cannot read rockchip,sdram-params %d\n", + __func__, ret); + return ret; + } + ret = regmap_init_mem(dev, &plat->map); + if (ret) + printf("%s: regmap failed %d\n", __func__, ret); +#endif + return 0; +} + +#endif + static int rk3328_dmc_probe(struct udevice *dev) { +#ifdef CONFIG_TPL_BUILD + if (rk3328_dmc_init(dev)) + return 0; +#else struct dram_info *priv = dev_get_priv(dev);
priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); @@ -27,7 +992,7 @@ static int rk3328_dmc_probe(struct udevice *dev) priv->info.base = CONFIG_SYS_SDRAM_BASE; priv->info.size = rockchip_sdram_size( (phys_addr_t)&priv->grf->os_reg[2]); - +#endif return 0; }
@@ -44,7 +1009,6 @@ static struct ram_ops rk3328_dmc_ops = { .get_info = rk3328_dmc_get_info, };
- static const struct udevice_id rk3328_dmc_ids[] = { { .compatible = "rockchip,rk3328-dmc" }, { } @@ -55,6 +1019,12 @@ U_BOOT_DRIVER(dmc_rk3328) = { .id = UCLASS_RAM, .of_match = rk3328_dmc_ids, .ops = &rk3328_dmc_ops, +#ifdef CONFIG_TPL_BUILD + .ofdata_to_platdata = rk3328_dmc_ofdata_to_platdata, +#endif .probe = rk3328_dmc_probe, .priv_auto_alloc_size = sizeof(struct dram_info), +#ifdef CONFIG_TPL_BUILD + .platdata_auto_alloc_size = sizeof(struct rockchip_dmc_plat), +#endif };