Re: [U-Boot] [PATCH v2 2/7] rockchip: ram: add full feature rk3328 DRAM driver

On 2019/8/2 下午3:39, Matwey V. Kornilov wrote:

From: Kever Yang kever.yang@rock-chips.com

This driver supports DDR3/LPDDR3/DDR4 SDRAM initialization.

Signed-off-by: YouMin Chen cym@rock-chips.com Signed-off-by: Kever Yang kever.yang@rock-chips.com [cherry picked from commit https://github.com/rockchip-linux/u-boot/commit/9fb0777ec3cc6a89af9d2e0969c3... with minor modifications] Signed-off-by: Matwey V. Kornilov matwey.kornilov@gmail.com

Reviewed-by: Kever Yang kever.yang@rock-chips.com

Thanks, - Kever

---

arch/arm/include/asm/arch-rockchip/sdram_rk3328.h | 441 +++++++++ drivers/ram/rockchip/sdram_rk3328.c | 1018 ++++++++++++++++++++- 2 files changed, 1456 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 0000000000..11411ead10 --- /dev/null +++ b/arch/arm/include/asm/arch-rockchip/sdram_rk3328.h @@ -0,0 +1,441 @@ +/*

• • 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

+#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)

+/* 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;

+};

+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 f4e0b18447..656696ac3c 100644 --- a/drivers/ram/rockchip/sdram_rk3328.c +++ b/drivers/ram/rockchip/sdram_rk3328.c @@ -2,22 +2,1029 @@ /*

• (C) Copyright 2017 Rockchip Electronics Co., Ltd.

*/

• #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-rockchip/clock.h> +#include <asm/arch-rockchip/cru_rk3328.h> #include <asm/arch-rockchip/grf_rk3328.h> #include <asm/arch-rockchip/sdram_common.h> +#include <asm/arch-rockchip/sdram_rk3328.h> +#include <asm/arch-rockchip/uart.h>

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) +{

• static const 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),
  

• };
• static const 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 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);
  

+}

+#undef _MAX_

+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, tmp = 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, 0);
• sys_reg |= SYS_REG_ENC_RANK(sdram_ch.rank, 0);
• sys_reg |= SYS_REG_ENC_COL(sdram_ch.col, 0);
• sys_reg |= SYS_REG_ENC_BK(sdram_ch.bk, 0);
• SYS_REG_ENC_CS0_ROW(sdram_ch.cs0_row, sys_reg, tmp, 0);
• if (sdram_ch.cs1_row)

• SYS_REG_ENC_CS1_ROW(sdram_ch.cs1_row, sys_reg, tmp, 0);
  

• sys_reg |= SYS_REG_ENC_BW(sdram_ch.bw, 0);
• sys_reg |= SYS_REG_ENC_DBW(sdram_ch.dbw, 0);
• 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); @@ -25,7 +1032,7 @@ 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; }

@@ -42,7 +1049,6 @@ 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" }, { }

@@ -53,6 +1059,12 @@ 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 };