From fa437430ad9861886f5766151757a99de647d086 Mon Sep 17 00:00:00 2001 From: Kever Yang Date: Wed, 22 Feb 2017 16:56:35 +0800 Subject: [PATCH] rockchip: arm64: rk3399: add ddr controller driver RK3399 support DDR3, LPDDR3, DDR4 sdram, this patch is porting from coreboot, support 4GB lpddr3 in this version. Signed-off-by: Kever Yang Added rockchip: tag: Signed-off-by: Simon Glass --- .../arm/dts/rk3399-sdram-lpddr3-4GB-1600.dtsi | 1536 +++++++++++++++++ .../include/asm/arch-rockchip/sdram_rk3399.h | 119 ++ arch/arm/mach-rockchip/rk3399/Makefile | 1 + arch/arm/mach-rockchip/rk3399/rk3399.c | 1 + arch/arm/mach-rockchip/rk3399/sdram_rk3399.c | 1321 ++++++++++++++ .../clock/rockchip,rk3399-dmc.txt | 42 + 6 files changed, 3020 insertions(+) create mode 100644 arch/arm/dts/rk3399-sdram-lpddr3-4GB-1600.dtsi create mode 100644 arch/arm/include/asm/arch-rockchip/sdram_rk3399.h create mode 100644 arch/arm/mach-rockchip/rk3399/sdram_rk3399.c create mode 100644 doc/device-tree-bindings/clock/rockchip,rk3399-dmc.txt diff --git a/arch/arm/dts/rk3399-sdram-lpddr3-4GB-1600.dtsi b/arch/arm/dts/rk3399-sdram-lpddr3-4GB-1600.dtsi new file mode 100644 index 0000000000..65dfc3806c --- /dev/null +++ b/arch/arm/dts/rk3399-sdram-lpddr3-4GB-1600.dtsi @@ -0,0 +1,1536 @@ +/* + * (C) Copyright 2016 Rockchip 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+ 0x00020055 + 0x00000000 + 0x00000000 + 0x00000000 + 0x00000050 + 0x00000000 + 0x00010100 + 0x00000601 + 0x00000000 + 0x00006400 + 0x01221102 + 0x00000000 + 0x00051f00 + 0x051f051f + 0x051f051f + 0x00030003 + 0x03000300 + 0x00000300 + 0x01221102 + 0x00000000 + 0x00000000 + 0x03020000 + 0x00000001 + 0x00000011 + 0x00000011 + 0x00000400 + 0x00000000 + 0x00000011 + 0x00000011 + 0x00004410 + 0x00004410 + 0x00004410 + 0x00004410 + 0x00004410 + 0x00000011 + 0x00004410 + 0x00000011 + 0x00004410 + 0x00000011 + 0x00004410 + 0x00000000 + 0x00000000 + 0x00000000 + 0x04000000 + 0x00000000 + 0x00000000 + 0x00000508 + 0x00000000 + 0x00000000 + 0x00000000 + 0x00000000 + 0x00000000 + 0x00000000 + 0xe4000000 + 0x00000000 + 0x00000000 + 0x01010000 + 0x00000000 + >; +}; diff --git a/arch/arm/include/asm/arch-rockchip/sdram_rk3399.h b/arch/arm/include/asm/arch-rockchip/sdram_rk3399.h new file mode 100644 index 0000000000..22a6ca9ae1 --- /dev/null +++ b/arch/arm/include/asm/arch-rockchip/sdram_rk3399.h @@ -0,0 +1,119 @@ +/* + * Copyright (C) 2016-2017 Rockchip Electronics Co., Ltd + * + * SPDX-License-Identifier: GPL-2.0+ + */ + +#ifndef _ASM_ARCH_SDRAM_RK3399_H +#define _ASM_ARCH_SDRAM_RK3399_H + +enum { + DDR3 = 0x3, + LPDDR2 = 0x5, + LPDDR3 = 0x6, + LPDDR4 = 0x7, + UNUSED = 0xFF +}; + +struct rk3399_ddr_pctl_regs { + u32 denali_ctl[332]; +}; + +struct rk3399_ddr_publ_regs { + u32 denali_phy[959]; +}; + +struct rk3399_ddr_pi_regs { + u32 denali_pi[200]; +}; + +struct rk3399_msch_regs { + u32 coreid; + u32 revisionid; + u32 ddrconf; + u32 ddrsize; + u32 ddrtiminga0; + u32 ddrtimingb0; + u32 ddrtimingc0; + u32 devtodev0; + u32 reserved0[(0x110 - 0x20) / 4]; + u32 ddrmode; + u32 reserved1[(0x1000 - 0x114) / 4]; + u32 agingx0; +}; + +struct rk3399_msch_timings { + u32 ddrtiminga0; + u32 ddrtimingb0; + u32 ddrtimingc0; + u32 devtodev0; + u32 ddrmode; + u32 agingx0; +}; + +struct rk3399_ddr_cic_regs { + u32 cic_ctrl0; + u32 cic_ctrl1; + u32 cic_idle_th; + u32 cic_cg_wait_th; + u32 cic_status0; + u32 cic_status1; + u32 cic_ctrl2; + u32 cic_ctrl3; + u32 cic_ctrl4; +}; + +/* DENALI_CTL_00 */ +#define START 1 + +/* DENALI_CTL_68 */ +#define PWRUP_SREFRESH_EXIT (1 << 16) + +/* DENALI_CTL_274 */ +#define MEM_RST_VALID 1 + +struct rk3399_sdram_channel { + unsigned int rank; + /* dram column number, 0 means this channel is invalid */ + unsigned int col; + /* dram bank number, 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; + /* + * row_3_4 = 1: 6Gb or 12Gb die + * row_3_4 = 0: normal die, power of 2 + */ + unsigned int row_3_4; + unsigned int cs0_row; + unsigned int cs1_row; + unsigned int ddrconfig; + struct rk3399_msch_timings noc_timings; +}; + +struct rk3399_base_params { + unsigned int ddr_freq; + unsigned int dramtype; + unsigned int num_channels; + unsigned int stride; + unsigned int odt; +}; + +struct rk3399_sdram_params { + struct rk3399_sdram_channel ch[2]; + struct rk3399_base_params base; + struct rk3399_ddr_pctl_regs pctl_regs; + struct rk3399_ddr_pi_regs pi_regs; + struct rk3399_ddr_publ_regs phy_regs; +}; + +#define PI_CA_TRAINING (1 << 0) +#define PI_WRITE_LEVELING (1 << 1) +#define PI_READ_GATE_TRAINING (1 << 2) +#define PI_READ_LEVELING (1 << 3) +#define PI_WDQ_LEVELING (1 << 4) +#define PI_FULL_TRAINING 0xff + +#endif diff --git a/arch/arm/mach-rockchip/rk3399/Makefile b/arch/arm/mach-rockchip/rk3399/Makefile index 98ebeac340..793ce31c12 100644 --- a/arch/arm/mach-rockchip/rk3399/Makefile +++ b/arch/arm/mach-rockchip/rk3399/Makefile @@ -6,4 +6,5 @@ obj-y += clk_rk3399.o obj-y += rk3399.o +obj-y += sdram_rk3399.o obj-y += syscon_rk3399.o diff --git a/arch/arm/mach-rockchip/rk3399/rk3399.c b/arch/arm/mach-rockchip/rk3399/rk3399.c index 8bb950ebd1..cbfd3fa09a 100644 --- a/arch/arm/mach-rockchip/rk3399/rk3399.c +++ b/arch/arm/mach-rockchip/rk3399/rk3399.c @@ -40,5 +40,6 @@ int arch_cpu_init(void) /* Emmc clock generator: disable the clock multipilier */ rk_clrreg(GRF_EMMCCORE_CON11, 0x0ff); + printf("time %x, %x\n", readl(0xff8680a8), readl(0xff8680ac)); return 0; } diff --git a/arch/arm/mach-rockchip/rk3399/sdram_rk3399.c b/arch/arm/mach-rockchip/rk3399/sdram_rk3399.c new file mode 100644 index 0000000000..749b52c8e7 --- /dev/null +++ b/arch/arm/mach-rockchip/rk3399/sdram_rk3399.c @@ -0,0 +1,1321 @@ +/* + * (C) Copyright 2016-2017 Rockchip Inc. + * + * SPDX-License-Identifier: GPL-2.0 + * + * Adapted from coreboot. + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +DECLARE_GLOBAL_DATA_PTR; +struct chan_info { + struct rk3399_ddr_pctl_regs *pctl; + struct rk3399_ddr_pi_regs *pi; + struct rk3399_ddr_publ_regs *publ; + struct rk3399_msch_regs *msch; +}; + +struct dram_info { +#ifdef CONFIG_SPL_BUILD + struct chan_info chan[2]; + struct clk ddr_clk; + struct rk3399_cru *cru; + struct rk3399_pmucru *pmucru; + struct rk3399_pmusgrf_regs *pmusgrf; + struct rk3399_ddr_cic_regs *cic; +#endif + struct ram_info info; + struct rk3399_pmugrf_regs *pmugrf; +}; + +/* + * 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_DDRTYPE_SHIFT 13 +#define SYS_REG_DDRTYPE_MASK 7 +#define SYS_REG_NUM_CH_SHIFT 12 +#define SYS_REG_NUM_CH_MASK 1 +#define SYS_REG_ROW_3_4_SHIFT(ch) (30 + (ch)) +#define SYS_REG_ROW_3_4_MASK 1 +#define SYS_REG_CHINFO_SHIFT(ch) (28 + (ch)) +#define SYS_REG_RANK_SHIFT(ch) (11 + (ch) * 16) +#define SYS_REG_RANK_MASK 1 +#define SYS_REG_COL_SHIFT(ch) (9 + (ch) * 16) +#define SYS_REG_COL_MASK 3 +#define SYS_REG_BK_SHIFT(ch) (8 + (ch) * 16) +#define SYS_REG_BK_MASK 1 +#define SYS_REG_CS0_ROW_SHIFT(ch) (6 + (ch) * 16) +#define SYS_REG_CS0_ROW_MASK 3 +#define SYS_REG_CS1_ROW_SHIFT(ch) (4 + (ch) * 16) +#define SYS_REG_CS1_ROW_MASK 3 +#define SYS_REG_BW_SHIFT(ch) (2 + (ch) * 16) +#define SYS_REG_BW_MASK 3 +#define SYS_REG_DBW_SHIFT(ch) ((ch) * 16) +#define SYS_REG_DBW_MASK 3 + +#define PRESET_SGRF_HOLD(n) ((0x1 << (6 + 16)) | ((n) << 6)) +#define PRESET_GPIO0_HOLD(n) ((0x1 << (7 + 16)) | ((n) << 7)) +#define PRESET_GPIO1_HOLD(n) ((0x1 << (8 + 16)) | ((n) << 8)) + +#define PHY_DRV_ODT_Hi_Z 0x0 +#define PHY_DRV_ODT_240 0x1 +#define PHY_DRV_ODT_120 0x8 +#define PHY_DRV_ODT_80 0x9 +#define PHY_DRV_ODT_60 0xc +#define PHY_DRV_ODT_48 0xd +#define PHY_DRV_ODT_40 0xe +#define PHY_DRV_ODT_34_3 0xf + +#ifdef CONFIG_SPL_BUILD + +struct rockchip_dmc_plat { +#if CONFIG_IS_ENABLED(OF_PLATDATA) + struct dtd_rockchip_rk3399_dmc dtplat; +#else + struct rk3399_sdram_params sdram_params; +#endif + struct regmap *map; +}; + +static void copy_to_reg(u32 *dest, const u32 *src, u32 n) +{ + int i; + + for (i = 0; i < n / sizeof(u32); i++) { + writel(*src, dest); + src++; + dest++; + } +} + +static void phy_dll_bypass_set(struct rk3399_ddr_publ_regs *ddr_publ_regs, + u32 freq) +{ + u32 *denali_phy = ddr_publ_regs->denali_phy; + + /* From IP spec, only freq small than 125 can enter dll bypass mode */ + if (freq <= 125) { + /* phy_sw_master_mode_X PHY_86/214/342/470 4bits offset_8 */ + setbits_le32(&denali_phy[86], (0x3 << 2) << 8); + setbits_le32(&denali_phy[214], (0x3 << 2) << 8); + setbits_le32(&denali_phy[342], (0x3 << 2) << 8); + setbits_le32(&denali_phy[470], (0x3 << 2) << 8); + + /* phy_adrctl_sw_master_mode PHY_547/675/803 4bits offset_16 */ + setbits_le32(&denali_phy[547], (0x3 << 2) << 16); + setbits_le32(&denali_phy[675], (0x3 << 2) << 16); + setbits_le32(&denali_phy[803], (0x3 << 2) << 16); + } else { + /* phy_sw_master_mode_X PHY_86/214/342/470 4bits offset_8 */ + clrbits_le32(&denali_phy[86], (0x3 << 2) << 8); + clrbits_le32(&denali_phy[214], (0x3 << 2) << 8); + clrbits_le32(&denali_phy[342], (0x3 << 2) << 8); + clrbits_le32(&denali_phy[470], (0x3 << 2) << 8); + + /* phy_adrctl_sw_master_mode PHY_547/675/803 4bits offset_16 */ + clrbits_le32(&denali_phy[547], (0x3 << 2) << 16); + clrbits_le32(&denali_phy[675], (0x3 << 2) << 16); + clrbits_le32(&denali_phy[803], (0x3 << 2) << 16); + } +} + +static void set_memory_map(const struct chan_info *chan, u32 channel, + const struct rk3399_sdram_params *sdram_params) +{ + const struct rk3399_sdram_channel *sdram_ch = + &sdram_params->ch[channel]; + u32 *denali_ctl = chan->pctl->denali_ctl; + u32 *denali_pi = chan->pi->denali_pi; + u32 cs_map; + u32 reduc; + u32 row; + + /* Get row number from ddrconfig setting */ + if (sdram_ch->ddrconfig < 2 || sdram_ch->ddrconfig == 4) + row = 16; + else if (sdram_ch->ddrconfig == 3) + row = 14; + else + row = 15; + + cs_map = (sdram_ch->rank > 1) ? 3 : 1; + reduc = (sdram_ch->bw == 2) ? 0 : 1; + + /* Set the dram configuration to ctrl */ + clrsetbits_le32(&denali_ctl[191], 0xF, (12 - sdram_ch->col)); + clrsetbits_le32(&denali_ctl[190], (0x3 << 16) | (0x7 << 24), + ((3 - sdram_ch->bk) << 16) | + ((16 - row) << 24)); + + clrsetbits_le32(&denali_ctl[196], 0x3 | (1 << 16), + cs_map | (reduc << 16)); + + /* PI_199 PI_COL_DIFF:RW:0:4 */ + clrsetbits_le32(&denali_pi[199], 0xF, (12 - sdram_ch->col)); + + /* PI_155 PI_ROW_DIFF:RW:24:3 PI_BANK_DIFF:RW:16:2 */ + clrsetbits_le32(&denali_pi[155], (0x3 << 16) | (0x7 << 24), + ((3 - sdram_ch->bk) << 16) | + ((16 - row) << 24)); + /* PI_41 PI_CS_MAP:RW:24:4 */ + clrsetbits_le32(&denali_pi[41], 0xf << 24, cs_map << 24); + if ((sdram_ch->rank == 1) && (sdram_params->base.dramtype == DDR3)) + writel(0x2EC7FFFF, &denali_pi[34]); +} + +static void set_ds_odt(const struct chan_info *chan, + const struct rk3399_sdram_params *sdram_params) +{ + u32 *denali_phy = chan->publ->denali_phy; + + u32 tsel_idle_en, tsel_wr_en, tsel_rd_en; + u32 tsel_idle_select_p, tsel_wr_select_p, tsel_rd_select_p; + u32 ca_tsel_wr_select_p, ca_tsel_wr_select_n; + u32 tsel_idle_select_n, tsel_wr_select_n, tsel_rd_select_n; + u32 reg_value; + + if (sdram_params->base.dramtype == LPDDR4) { + tsel_rd_select_p = PHY_DRV_ODT_Hi_Z; + tsel_wr_select_p = PHY_DRV_ODT_40; + ca_tsel_wr_select_p = PHY_DRV_ODT_40; + tsel_idle_select_p = PHY_DRV_ODT_Hi_Z; + + tsel_rd_select_n = PHY_DRV_ODT_240; + tsel_wr_select_n = PHY_DRV_ODT_40; + ca_tsel_wr_select_n = PHY_DRV_ODT_40; + tsel_idle_select_n = PHY_DRV_ODT_240; + } else if (sdram_params->base.dramtype == LPDDR3) { + tsel_rd_select_p = PHY_DRV_ODT_240; + tsel_wr_select_p = PHY_DRV_ODT_34_3; + ca_tsel_wr_select_p = PHY_DRV_ODT_48; + tsel_idle_select_p = PHY_DRV_ODT_240; + + tsel_rd_select_n = PHY_DRV_ODT_Hi_Z; + tsel_wr_select_n = PHY_DRV_ODT_34_3; + ca_tsel_wr_select_n = PHY_DRV_ODT_48; + tsel_idle_select_n = PHY_DRV_ODT_Hi_Z; + } else { + tsel_rd_select_p = PHY_DRV_ODT_240; + tsel_wr_select_p = PHY_DRV_ODT_34_3; + ca_tsel_wr_select_p = PHY_DRV_ODT_34_3; + tsel_idle_select_p = PHY_DRV_ODT_240; + + tsel_rd_select_n = PHY_DRV_ODT_240; + tsel_wr_select_n = PHY_DRV_ODT_34_3; + ca_tsel_wr_select_n = PHY_DRV_ODT_34_3; + tsel_idle_select_n = PHY_DRV_ODT_240; + } + + if (sdram_params->base.odt == 1) + tsel_rd_en = 1; + else + tsel_rd_en = 0; + + tsel_wr_en = 0; + tsel_idle_en = 0; + + /* + * phy_dq_tsel_select_X 24bits DENALI_PHY_6/134/262/390 offset_0 + * sets termination values for read/idle cycles and drive strength + * for write cycles for DQ/DM + */ + reg_value = tsel_rd_select_n | (tsel_rd_select_p << 0x4) | + (tsel_wr_select_n << 8) | (tsel_wr_select_p << 12) | + (tsel_idle_select_n << 16) | (tsel_idle_select_p << 20); + clrsetbits_le32(&denali_phy[6], 0xffffff, reg_value); + clrsetbits_le32(&denali_phy[134], 0xffffff, reg_value); + clrsetbits_le32(&denali_phy[262], 0xffffff, reg_value); + clrsetbits_le32(&denali_phy[390], 0xffffff, reg_value); + + /* + * phy_dqs_tsel_select_X 24bits DENALI_PHY_7/135/263/391 offset_0 + * sets termination values for read/idle cycles and drive strength + * for write cycles for DQS + */ + clrsetbits_le32(&denali_phy[7], 0xffffff, reg_value); + clrsetbits_le32(&denali_phy[135], 0xffffff, reg_value); + clrsetbits_le32(&denali_phy[263], 0xffffff, reg_value); + clrsetbits_le32(&denali_phy[391], 0xffffff, reg_value); + + /* phy_adr_tsel_select_ 8bits DENALI_PHY_544/672/800 offset_0 */ + reg_value = ca_tsel_wr_select_n | (ca_tsel_wr_select_p << 0x4); + clrsetbits_le32(&denali_phy[544], 0xff, reg_value); + clrsetbits_le32(&denali_phy[672], 0xff, reg_value); + clrsetbits_le32(&denali_phy[800], 0xff, reg_value); + + /* phy_pad_addr_drive 8bits DENALI_PHY_928 offset_0 */ + clrsetbits_le32(&denali_phy[928], 0xff, reg_value); + + /* phy_pad_rst_drive 8bits DENALI_PHY_937 offset_0 */ + clrsetbits_le32(&denali_phy[937], 0xff, reg_value); + + /* phy_pad_cke_drive 8bits DENALI_PHY_935 offset_0 */ + clrsetbits_le32(&denali_phy[935], 0xff, reg_value); + + /* phy_pad_cs_drive 8bits DENALI_PHY_939 offset_0 */ + clrsetbits_le32(&denali_phy[939], 0xff, reg_value); + + /* phy_pad_clk_drive 8bits DENALI_PHY_929 offset_0 */ + clrsetbits_le32(&denali_phy[929], 0xff, reg_value); + + /* phy_pad_fdbk_drive 23bit DENALI_PHY_924/925 */ + clrsetbits_le32(&denali_phy[924], 0xff, + tsel_wr_select_n | (tsel_wr_select_p << 4)); + clrsetbits_le32(&denali_phy[925], 0xff, + tsel_rd_select_n | (tsel_rd_select_p << 4)); + + /* phy_dq_tsel_enable_X 3bits DENALI_PHY_5/133/261/389 offset_16 */ + reg_value = (tsel_rd_en | (tsel_wr_en << 1) | (tsel_idle_en << 2)) + << 16; + clrsetbits_le32(&denali_phy[5], 0x7 << 16, reg_value); + clrsetbits_le32(&denali_phy[133], 0x7 << 16, reg_value); + clrsetbits_le32(&denali_phy[261], 0x7 << 16, reg_value); + clrsetbits_le32(&denali_phy[389], 0x7 << 16, reg_value); + + /* phy_dqs_tsel_enable_X 3bits DENALI_PHY_6/134/262/390 offset_24 */ + reg_value = (tsel_rd_en | (tsel_wr_en << 1) | (tsel_idle_en << 2)) + << 24; + clrsetbits_le32(&denali_phy[6], 0x7 << 24, reg_value); + clrsetbits_le32(&denali_phy[134], 0x7 << 24, reg_value); + clrsetbits_le32(&denali_phy[262], 0x7 << 24, reg_value); + clrsetbits_le32(&denali_phy[390], 0x7 << 24, reg_value); + + /* phy_adr_tsel_enable_ 1bit DENALI_PHY_518/646/774 offset_8 */ + reg_value = tsel_wr_en << 8; + clrsetbits_le32(&denali_phy[518], 0x1 << 8, reg_value); + clrsetbits_le32(&denali_phy[646], 0x1 << 8, reg_value); + clrsetbits_le32(&denali_phy[774], 0x1 << 8, reg_value); + + /* phy_pad_addr_term tsel 1bit DENALI_PHY_933 offset_17 */ + reg_value = tsel_wr_en << 17; + clrsetbits_le32(&denali_phy[933], 0x1 << 17, reg_value); + /* + * pad_rst/cke/cs/clk_term tsel 1bits + * DENALI_PHY_938/936/940/934 offset_17 + */ + clrsetbits_le32(&denali_phy[938], 0x1 << 17, reg_value); + clrsetbits_le32(&denali_phy[936], 0x1 << 17, reg_value); + clrsetbits_le32(&denali_phy[940], 0x1 << 17, reg_value); + clrsetbits_le32(&denali_phy[934], 0x1 << 17, reg_value); + + /* phy_pad_fdbk_term 1bit DENALI_PHY_930 offset_17 */ + clrsetbits_le32(&denali_phy[930], 0x1 << 17, reg_value); +} + +static int phy_io_config(const struct chan_info *chan, + const struct rk3399_sdram_params *sdram_params) +{ + u32 *denali_phy = chan->publ->denali_phy; + u32 vref_mode_dq, vref_value_dq, vref_mode_ac, vref_value_ac; + u32 mode_sel; + u32 reg_value; + u32 drv_value, odt_value; + u32 speed; + + /* vref setting */ + if (sdram_params->base.dramtype == LPDDR4) { + /* LPDDR4 */ + vref_mode_dq = 0x6; + vref_value_dq = 0x1f; + vref_mode_ac = 0x6; + vref_value_ac = 0x1f; + } else if (sdram_params->base.dramtype == LPDDR3) { + if (sdram_params->base.odt == 1) { + vref_mode_dq = 0x5; /* LPDDR3 ODT */ + drv_value = (readl(&denali_phy[6]) >> 12) & 0xf; + odt_value = (readl(&denali_phy[6]) >> 4) & 0xf; + if (drv_value == PHY_DRV_ODT_48) { + switch (odt_value) { + case PHY_DRV_ODT_240: + vref_value_dq = 0x16; + break; + case PHY_DRV_ODT_120: + vref_value_dq = 0x26; + break; + case PHY_DRV_ODT_60: + vref_value_dq = 0x36; + break; + default: + debug("Invalid ODT value.\n"); + return -EINVAL; + } + } else if (drv_value == PHY_DRV_ODT_40) { + switch (odt_value) { + case PHY_DRV_ODT_240: + vref_value_dq = 0x19; + break; + case PHY_DRV_ODT_120: + vref_value_dq = 0x23; + break; + case PHY_DRV_ODT_60: + vref_value_dq = 0x31; + break; + default: + debug("Invalid ODT value.\n"); + return -EINVAL; + } + } else if (drv_value == PHY_DRV_ODT_34_3) { + switch (odt_value) { + case PHY_DRV_ODT_240: + vref_value_dq = 0x17; + break; + case PHY_DRV_ODT_120: + vref_value_dq = 0x20; + break; + case PHY_DRV_ODT_60: + vref_value_dq = 0x2e; + break; + default: + debug("Invalid ODT value.\n"); + return -EINVAL; + } + } else { + debug("Invalid DRV value.\n"); + return -EINVAL; + } + } else { + vref_mode_dq = 0x2; /* LPDDR3 */ + vref_value_dq = 0x1f; + } + vref_mode_ac = 0x2; + vref_value_ac = 0x1f; + } else if (sdram_params->base.dramtype == DDR3) { + /* DDR3L */ + vref_mode_dq = 0x1; + vref_value_dq = 0x1f; + vref_mode_ac = 0x1; + vref_value_ac = 0x1f; + } else { + debug("Unknown DRAM type.\n"); + return -EINVAL; + } + + reg_value = (vref_mode_dq << 9) | (0x1 << 8) | vref_value_dq; + + /* PHY_913 PHY_PAD_VREF_CTRL_DQ_0 12bits offset_8 */ + clrsetbits_le32(&denali_phy[913], 0xfff << 8, reg_value << 8); + /* PHY_914 PHY_PAD_VREF_CTRL_DQ_1 12bits offset_0 */ + clrsetbits_le32(&denali_phy[914], 0xfff, reg_value); + /* PHY_914 PHY_PAD_VREF_CTRL_DQ_2 12bits offset_16 */ + clrsetbits_le32(&denali_phy[914], 0xfff << 16, reg_value << 16); + /* PHY_915 PHY_PAD_VREF_CTRL_DQ_3 12bits offset_0 */ + clrsetbits_le32(&denali_phy[915], 0xfff, reg_value); + + reg_value = (vref_mode_ac << 9) | (0x1 << 8) | vref_value_ac; + + /* PHY_915 PHY_PAD_VREF_CTRL_AC 12bits offset_16 */ + clrsetbits_le32(&denali_phy[915], 0xfff << 16, reg_value << 16); + + if (sdram_params->base.dramtype == LPDDR4) + mode_sel = 0x6; + else if (sdram_params->base.dramtype == LPDDR3) + mode_sel = 0x0; + else if (sdram_params->base.dramtype == DDR3) + mode_sel = 0x1; + else + return -EINVAL; + + /* PHY_924 PHY_PAD_FDBK_DRIVE */ + clrsetbits_le32(&denali_phy[924], 0x7 << 15, mode_sel << 15); + /* PHY_926 PHY_PAD_DATA_DRIVE */ + clrsetbits_le32(&denali_phy[926], 0x7 << 6, mode_sel << 6); + /* PHY_927 PHY_PAD_DQS_DRIVE */ + clrsetbits_le32(&denali_phy[927], 0x7 << 6, mode_sel << 6); + /* PHY_928 PHY_PAD_ADDR_DRIVE */ + clrsetbits_le32(&denali_phy[928], 0x7 << 14, mode_sel << 14); + /* PHY_929 PHY_PAD_CLK_DRIVE */ + clrsetbits_le32(&denali_phy[929], 0x7 << 14, mode_sel << 14); + /* PHY_935 PHY_PAD_CKE_DRIVE */ + clrsetbits_le32(&denali_phy[935], 0x7 << 14, mode_sel << 14); + /* PHY_937 PHY_PAD_RST_DRIVE */ + clrsetbits_le32(&denali_phy[937], 0x7 << 14, mode_sel << 14); + /* PHY_939 PHY_PAD_CS_DRIVE */ + clrsetbits_le32(&denali_phy[939], 0x7 << 14, mode_sel << 14); + + + /* speed setting */ + if (sdram_params->base.ddr_freq < 400) + speed = 0x0; + else if (sdram_params->base.ddr_freq < 800) + speed = 0x1; + else if (sdram_params->base.ddr_freq < 1200) + speed = 0x2; + else + speed = 0x3; + + /* PHY_924 PHY_PAD_FDBK_DRIVE */ + clrsetbits_le32(&denali_phy[924], 0x3 << 21, speed << 21); + /* PHY_926 PHY_PAD_DATA_DRIVE */ + clrsetbits_le32(&denali_phy[926], 0x3 << 9, speed << 9); + /* PHY_927 PHY_PAD_DQS_DRIVE */ + clrsetbits_le32(&denali_phy[927], 0x3 << 9, speed << 9); + /* PHY_928 PHY_PAD_ADDR_DRIVE */ + clrsetbits_le32(&denali_phy[928], 0x3 << 17, speed << 17); + /* PHY_929 PHY_PAD_CLK_DRIVE */ + clrsetbits_le32(&denali_phy[929], 0x3 << 17, speed << 17); + /* PHY_935 PHY_PAD_CKE_DRIVE */ + clrsetbits_le32(&denali_phy[935], 0x3 << 17, speed << 17); + /* PHY_937 PHY_PAD_RST_DRIVE */ + clrsetbits_le32(&denali_phy[937], 0x3 << 17, speed << 17); + /* PHY_939 PHY_PAD_CS_DRIVE */ + clrsetbits_le32(&denali_phy[939], 0x3 << 17, speed << 17); + + return 0; +} + +static int pctl_cfg(const struct chan_info *chan, u32 channel, + const struct rk3399_sdram_params *sdram_params) +{ + u32 *denali_ctl = chan->pctl->denali_ctl; + u32 *denali_pi = chan->pi->denali_pi; + u32 *denali_phy = chan->publ->denali_phy; + const u32 *params_ctl = sdram_params->pctl_regs.denali_ctl; + const u32 *params_phy = sdram_params->phy_regs.denali_phy; + u32 tmp, tmp1, tmp2; + u32 pwrup_srefresh_exit; + int ret; + + /* + * work around controller bug: + * Do not program DRAM_CLASS until NO_PHY_IND_TRAIN_INT is programmed + */ + copy_to_reg(&denali_ctl[1], ¶ms_ctl[1], + sizeof(struct rk3399_ddr_pctl_regs) - 4); + writel(params_ctl[0], &denali_ctl[0]); + copy_to_reg(denali_pi, &sdram_params->pi_regs.denali_pi[0], + sizeof(struct rk3399_ddr_pi_regs)); + /* rank count need to set for init */ + set_memory_map(chan, channel, sdram_params); + + writel(sdram_params->phy_regs.denali_phy[910], &denali_phy[910]); + writel(sdram_params->phy_regs.denali_phy[911], &denali_phy[911]); + writel(sdram_params->phy_regs.denali_phy[912], &denali_phy[912]); + + pwrup_srefresh_exit = readl(&denali_ctl[68]) & PWRUP_SREFRESH_EXIT; + clrbits_le32(&denali_ctl[68], PWRUP_SREFRESH_EXIT); + + /* PHY_DLL_RST_EN */ + clrsetbits_le32(&denali_phy[957], 0x3 << 24, 1 << 24); + + setbits_le32(&denali_pi[0], START); + setbits_le32(&denali_ctl[0], START); + + /* Wating for phy DLL lock */ + while (1) { + tmp = readl(&denali_phy[920]); + tmp1 = readl(&denali_phy[921]); + tmp2 = readl(&denali_phy[922]); + if ((((tmp >> 16) & 0x1) == 0x1) && + (((tmp1 >> 16) & 0x1) == 0x1) && + (((tmp1 >> 0) & 0x1) == 0x1) && + (((tmp2 >> 0) & 0x1) == 0x1)) + break; + } + + copy_to_reg(&denali_phy[896], ¶ms_phy[896], (958 - 895) * 4); + copy_to_reg(&denali_phy[0], ¶ms_phy[0], (90 - 0 + 1) * 4); + copy_to_reg(&denali_phy[128], ¶ms_phy[128], (218 - 128 + 1) * 4); + copy_to_reg(&denali_phy[256], ¶ms_phy[256], (346 - 256 + 1) * 4); + copy_to_reg(&denali_phy[384], ¶ms_phy[384], (474 - 384 + 1) * 4); + copy_to_reg(&denali_phy[512], ¶ms_phy[512], (549 - 512 + 1) * 4); + copy_to_reg(&denali_phy[640], ¶ms_phy[640], (677 - 640 + 1) * 4); + copy_to_reg(&denali_phy[768], ¶ms_phy[768], (805 - 768 + 1) * 4); + set_ds_odt(chan, sdram_params); + + /* + * phy_dqs_tsel_wr_timing_X 8bits DENALI_PHY_84/212/340/468 offset_8 + * dqs_tsel_wr_end[7:4] add Half cycle + */ + tmp = (readl(&denali_phy[84]) >> 8) & 0xff; + clrsetbits_le32(&denali_phy[84], 0xff << 8, (tmp + 0x10) << 8); + tmp = (readl(&denali_phy[212]) >> 8) & 0xff; + clrsetbits_le32(&denali_phy[212], 0xff << 8, (tmp + 0x10) << 8); + tmp = (readl(&denali_phy[340]) >> 8) & 0xff; + clrsetbits_le32(&denali_phy[340], 0xff << 8, (tmp + 0x10) << 8); + tmp = (readl(&denali_phy[468]) >> 8) & 0xff; + clrsetbits_le32(&denali_phy[468], 0xff << 8, (tmp + 0x10) << 8); + + /* + * phy_dqs_tsel_wr_timing_X 8bits DENALI_PHY_83/211/339/467 offset_8 + * dq_tsel_wr_end[7:4] add Half cycle + */ + tmp = (readl(&denali_phy[83]) >> 16) & 0xff; + clrsetbits_le32(&denali_phy[83], 0xff << 16, (tmp + 0x10) << 16); + tmp = (readl(&denali_phy[211]) >> 16) & 0xff; + clrsetbits_le32(&denali_phy[211], 0xff << 16, (tmp + 0x10) << 16); + tmp = (readl(&denali_phy[339]) >> 16) & 0xff; + clrsetbits_le32(&denali_phy[339], 0xff << 16, (tmp + 0x10) << 16); + tmp = (readl(&denali_phy[467]) >> 16) & 0xff; + clrsetbits_le32(&denali_phy[467], 0xff << 16, (tmp + 0x10) << 16); + + ret = phy_io_config(chan, sdram_params); + if (ret) + return ret; + + /* PHY_DLL_RST_EN */ + clrsetbits_le32(&denali_phy[957], 0x3 << 24, 0x2 << 24); + + /* Wating for PHY and DRAM init complete */ + tmp = 0; + while (!(readl(&denali_ctl[203]) & (1 << 3))) { + mdelay(10); + tmp++; + if (tmp > 10) + return -ETIME; + } + + clrsetbits_le32(&denali_ctl[68], PWRUP_SREFRESH_EXIT, + pwrup_srefresh_exit); + return 0; +} + +static void select_per_cs_training_index(const struct chan_info *chan, + u32 rank) +{ + u32 *denali_phy = chan->publ->denali_phy; + + /* PHY_84 PHY_PER_CS_TRAINING_EN_0 1bit offset_16 */ + if ((readl(&denali_phy[84])>>16) & 1) { + /* + * PHY_8/136/264/392 + * phy_per_cs_training_index_X 1bit offset_24 + */ + clrsetbits_le32(&denali_phy[8], 0x1 << 24, rank << 24); + clrsetbits_le32(&denali_phy[136], 0x1 << 24, rank << 24); + clrsetbits_le32(&denali_phy[264], 0x1 << 24, rank << 24); + clrsetbits_le32(&denali_phy[392], 0x1 << 24, rank << 24); + } +} + +static void override_write_leveling_value(const struct chan_info *chan) +{ + u32 *denali_ctl = chan->pctl->denali_ctl; + u32 *denali_phy = chan->publ->denali_phy; + u32 byte; + + /* PHY_896 PHY_FREQ_SEL_MULTICAST_EN 1bit offset_0 */ + setbits_le32(&denali_phy[896], 1); + + /* + * PHY_8/136/264/392 + * phy_per_cs_training_multicast_en_X 1bit offset_16 + */ + clrsetbits_le32(&denali_phy[8], 0x1 << 16, 1 << 16); + clrsetbits_le32(&denali_phy[136], 0x1 << 16, 1 << 16); + clrsetbits_le32(&denali_phy[264], 0x1 << 16, 1 << 16); + clrsetbits_le32(&denali_phy[392], 0x1 << 16, 1 << 16); + + for (byte = 0; byte < 4; byte++) + clrsetbits_le32(&denali_phy[63 + (128 * byte)], 0xffff << 16, + 0x200 << 16); + + /* PHY_896 PHY_FREQ_SEL_MULTICAST_EN 1bit offset_0 */ + clrbits_le32(&denali_phy[896], 1); + + /* CTL_200 ctrlupd_req 1bit offset_8 */ + clrsetbits_le32(&denali_ctl[200], 0x1 << 8, 0x1 << 8); +} + +static int data_training_ca(const struct chan_info *chan, u32 channel, + const struct rk3399_sdram_params *sdram_params) +{ + u32 *denali_pi = chan->pi->denali_pi; + u32 *denali_phy = chan->publ->denali_phy; + u32 i, tmp; + u32 obs_0, obs_1, obs_2, obs_err = 0; + u32 rank = sdram_params->ch[channel].rank; + + for (i = 0; i < rank; i++) { + select_per_cs_training_index(chan, i); + /* PI_100 PI_CALVL_EN:RW:8:2 */ + clrsetbits_le32(&denali_pi[100], 0x3 << 8, 0x2 << 8); + /* PI_92 PI_CALVL_REQ:WR:16:1,PI_CALVL_CS:RW:24:2 */ + clrsetbits_le32(&denali_pi[92], + (0x1 << 16) | (0x3 << 24), + (0x1 << 16) | (i << 24)); + + /* Waiting for training complete */ + while (1) { + /* PI_174 PI_INT_STATUS:RD:8:18 */ + tmp = readl(&denali_pi[174]) >> 8; + /* + * check status obs + * PHY_532/660/789 phy_adr_calvl_obs1_:0:32 + */ + obs_0 = readl(&denali_phy[532]); + obs_1 = readl(&denali_phy[660]); + obs_2 = readl(&denali_phy[788]); + if (((obs_0 >> 30) & 0x3) || + ((obs_1 >> 30) & 0x3) || + ((obs_2 >> 30) & 0x3)) + obs_err = 1; + if ((((tmp >> 11) & 0x1) == 0x1) && + (((tmp >> 13) & 0x1) == 0x1) && + (((tmp >> 5) & 0x1) == 0x0) && + (obs_err == 0)) + break; + else if ((((tmp >> 5) & 0x1) == 0x1) || + (obs_err == 1)) + return -EIO; + } + /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ + writel(0x00003f7c, (&denali_pi[175])); + } + clrbits_le32(&denali_pi[100], 0x3 << 8); + + return 0; +} + +static int data_training_wl(const struct chan_info *chan, u32 channel, + const struct rk3399_sdram_params *sdram_params) +{ + u32 *denali_pi = chan->pi->denali_pi; + u32 *denali_phy = chan->publ->denali_phy; + u32 i, tmp; + u32 obs_0, obs_1, obs_2, obs_3, obs_err = 0; + u32 rank = sdram_params->ch[channel].rank; + + for (i = 0; i < rank; i++) { + select_per_cs_training_index(chan, i); + /* PI_60 PI_WRLVL_EN:RW:8:2 */ + clrsetbits_le32(&denali_pi[60], 0x3 << 8, 0x2 << 8); + /* PI_59 PI_WRLVL_REQ:WR:8:1,PI_WRLVL_CS:RW:16:2 */ + clrsetbits_le32(&denali_pi[59], + (0x1 << 8) | (0x3 << 16), + (0x1 << 8) | (i << 16)); + + /* Waiting for training complete */ + while (1) { + /* PI_174 PI_INT_STATUS:RD:8:18 */ + tmp = readl(&denali_pi[174]) >> 8; + + /* + * check status obs, if error maybe can not + * get leveling done PHY_40/168/296/424 + * phy_wrlvl_status_obs_X:0:13 + */ + obs_0 = readl(&denali_phy[40]); + obs_1 = readl(&denali_phy[168]); + obs_2 = readl(&denali_phy[296]); + obs_3 = readl(&denali_phy[424]); + if (((obs_0 >> 12) & 0x1) || + ((obs_1 >> 12) & 0x1) || + ((obs_2 >> 12) & 0x1) || + ((obs_3 >> 12) & 0x1)) + obs_err = 1; + if ((((tmp >> 10) & 0x1) == 0x1) && + (((tmp >> 13) & 0x1) == 0x1) && + (((tmp >> 4) & 0x1) == 0x0) && + (obs_err == 0)) + break; + else if ((((tmp >> 4) & 0x1) == 0x1) || + (obs_err == 1)) + return -EIO; + } + /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ + writel(0x00003f7c, (&denali_pi[175])); + } + + override_write_leveling_value(chan); + clrbits_le32(&denali_pi[60], 0x3 << 8); + + return 0; +} + +static int data_training_rg(const struct chan_info *chan, u32 channel, + const struct rk3399_sdram_params *sdram_params) +{ + u32 *denali_pi = chan->pi->denali_pi; + u32 *denali_phy = chan->publ->denali_phy; + u32 i, tmp; + u32 obs_0, obs_1, obs_2, obs_3, obs_err = 0; + u32 rank = sdram_params->ch[channel].rank; + + for (i = 0; i < rank; i++) { + select_per_cs_training_index(chan, i); + /* PI_80 PI_RDLVL_GATE_EN:RW:24:2 */ + clrsetbits_le32(&denali_pi[80], 0x3 << 24, 0x2 << 24); + /* + * PI_74 PI_RDLVL_GATE_REQ:WR:16:1 + * PI_RDLVL_CS:RW:24:2 + */ + clrsetbits_le32(&denali_pi[74], + (0x1 << 16) | (0x3 << 24), + (0x1 << 16) | (i << 24)); + + /* Waiting for training complete */ + while (1) { + /* PI_174 PI_INT_STATUS:RD:8:18 */ + tmp = readl(&denali_pi[174]) >> 8; + + /* + * check status obs + * PHY_43/171/299/427 + * PHY_GTLVL_STATUS_OBS_x:16:8 + */ + obs_0 = readl(&denali_phy[43]); + obs_1 = readl(&denali_phy[171]); + obs_2 = readl(&denali_phy[299]); + obs_3 = readl(&denali_phy[427]); + if (((obs_0 >> (16 + 6)) & 0x3) || + ((obs_1 >> (16 + 6)) & 0x3) || + ((obs_2 >> (16 + 6)) & 0x3) || + ((obs_3 >> (16 + 6)) & 0x3)) + obs_err = 1; + if ((((tmp >> 9) & 0x1) == 0x1) && + (((tmp >> 13) & 0x1) == 0x1) && + (((tmp >> 3) & 0x1) == 0x0) && + (obs_err == 0)) + break; + else if ((((tmp >> 3) & 0x1) == 0x1) || + (obs_err == 1)) + return -EIO; + } + /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ + writel(0x00003f7c, (&denali_pi[175])); + } + clrbits_le32(&denali_pi[80], 0x3 << 24); + + return 0; +} + +static int data_training_rl(const struct chan_info *chan, u32 channel, + const struct rk3399_sdram_params *sdram_params) +{ + u32 *denali_pi = chan->pi->denali_pi; + u32 i, tmp; + u32 rank = sdram_params->ch[channel].rank; + + for (i = 0; i < rank; i++) { + select_per_cs_training_index(chan, i); + /* PI_80 PI_RDLVL_EN:RW:16:2 */ + clrsetbits_le32(&denali_pi[80], 0x3 << 16, 0x2 << 16); + /* PI_74 PI_RDLVL_REQ:WR:8:1,PI_RDLVL_CS:RW:24:2 */ + clrsetbits_le32(&denali_pi[74], + (0x1 << 8) | (0x3 << 24), + (0x1 << 8) | (i << 24)); + + /* Waiting for training complete */ + while (1) { + /* PI_174 PI_INT_STATUS:RD:8:18 */ + tmp = readl(&denali_pi[174]) >> 8; + + /* + * make sure status obs not report error bit + * PHY_46/174/302/430 + * phy_rdlvl_status_obs_X:16:8 + */ + if ((((tmp >> 8) & 0x1) == 0x1) && + (((tmp >> 13) & 0x1) == 0x1) && + (((tmp >> 2) & 0x1) == 0x0)) + break; + else if (((tmp >> 2) & 0x1) == 0x1) + return -EIO; + } + /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ + writel(0x00003f7c, (&denali_pi[175])); + } + clrbits_le32(&denali_pi[80], 0x3 << 16); + + return 0; +} + +static int data_training_wdql(const struct chan_info *chan, u32 channel, + const struct rk3399_sdram_params *sdram_params) +{ + u32 *denali_pi = chan->pi->denali_pi; + u32 i, tmp; + u32 rank = sdram_params->ch[channel].rank; + + for (i = 0; i < rank; i++) { + select_per_cs_training_index(chan, i); + /* + * disable PI_WDQLVL_VREF_EN before wdq leveling? + * PI_181 PI_WDQLVL_VREF_EN:RW:8:1 + */ + clrbits_le32(&denali_pi[181], 0x1 << 8); + /* PI_124 PI_WDQLVL_EN:RW:16:2 */ + clrsetbits_le32(&denali_pi[124], 0x3 << 16, 0x2 << 16); + /* PI_121 PI_WDQLVL_REQ:WR:8:1,PI_WDQLVL_CS:RW:16:2 */ + clrsetbits_le32(&denali_pi[121], + (0x1 << 8) | (0x3 << 16), + (0x1 << 8) | (i << 16)); + + /* Waiting for training complete */ + while (1) { + /* PI_174 PI_INT_STATUS:RD:8:18 */ + tmp = readl(&denali_pi[174]) >> 8; + if ((((tmp >> 12) & 0x1) == 0x1) && + (((tmp >> 13) & 0x1) == 0x1) && + (((tmp >> 6) & 0x1) == 0x0)) + break; + else if (((tmp >> 6) & 0x1) == 0x1) + return -EIO; + } + /* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */ + writel(0x00003f7c, (&denali_pi[175])); + } + clrbits_le32(&denali_pi[124], 0x3 << 16); + + return 0; +} + +static int data_training(const struct chan_info *chan, u32 channel, + const struct rk3399_sdram_params *sdram_params, + u32 training_flag) +{ + u32 *denali_phy = chan->publ->denali_phy; + + /* PHY_927 PHY_PAD_DQS_DRIVE RPULL offset_22 */ + setbits_le32(&denali_phy[927], (1 << 22)); + + if (training_flag == PI_FULL_TRAINING) { + if (sdram_params->base.dramtype == LPDDR4) { + training_flag = PI_CA_TRAINING | PI_WRITE_LEVELING | + PI_READ_GATE_TRAINING | + PI_READ_LEVELING | PI_WDQ_LEVELING; + } else if (sdram_params->base.dramtype == LPDDR3) { + training_flag = PI_CA_TRAINING | PI_WRITE_LEVELING | + PI_READ_GATE_TRAINING; + } else if (sdram_params->base.dramtype == DDR3) { + training_flag = PI_WRITE_LEVELING | + PI_READ_GATE_TRAINING | + PI_READ_LEVELING; + } + } + + /* ca training(LPDDR4,LPDDR3 support) */ + if ((training_flag & PI_CA_TRAINING) == PI_CA_TRAINING) + data_training_ca(chan, channel, sdram_params); + + /* write leveling(LPDDR4,LPDDR3,DDR3 support) */ + if ((training_flag & PI_WRITE_LEVELING) == PI_WRITE_LEVELING) + data_training_wl(chan, channel, sdram_params); + + /* read gate training(LPDDR4,LPDDR3,DDR3 support) */ + if ((training_flag & PI_READ_GATE_TRAINING) == PI_READ_GATE_TRAINING) + data_training_rg(chan, channel, sdram_params); + + /* read leveling(LPDDR4,LPDDR3,DDR3 support) */ + if ((training_flag & PI_READ_LEVELING) == PI_READ_LEVELING) + data_training_rl(chan, channel, sdram_params); + + /* wdq leveling(LPDDR4 support) */ + if ((training_flag & PI_WDQ_LEVELING) == PI_WDQ_LEVELING) + data_training_wdql(chan, channel, sdram_params); + + /* PHY_927 PHY_PAD_DQS_DRIVE RPULL offset_22 */ + clrbits_le32(&denali_phy[927], (1 << 22)); + + return 0; +} + +static void set_ddrconfig(const struct chan_info *chan, + const struct rk3399_sdram_params *sdram_params, + unsigned char channel, u32 ddrconfig) +{ + /* only need to set ddrconfig */ + struct rk3399_msch_regs *ddr_msch_regs = chan->msch; + unsigned int cs0_cap = 0; + unsigned int cs1_cap = 0; + + cs0_cap = (1 << (sdram_params->ch[channel].cs0_row + + sdram_params->ch[channel].col + + sdram_params->ch[channel].bk + + sdram_params->ch[channel].bw - 20)); + if (sdram_params->ch[channel].rank > 1) + cs1_cap = cs0_cap >> (sdram_params->ch[channel].cs0_row + - sdram_params->ch[channel].cs1_row); + if (sdram_params->ch[channel].row_3_4) { + cs0_cap = cs0_cap * 3 / 4; + cs1_cap = cs1_cap * 3 / 4; + } + + writel(ddrconfig | (ddrconfig << 8), &ddr_msch_regs->ddrconf); + writel(((cs0_cap / 32) & 0xff) | (((cs1_cap / 32) & 0xff) << 8), + &ddr_msch_regs->ddrsize); +} + +static void dram_all_config(struct dram_info *dram, + const struct rk3399_sdram_params *sdram_params) +{ + u32 sys_reg = 0; + unsigned int channel, idx; + + sys_reg |= sdram_params->base.dramtype << SYS_REG_DDRTYPE_SHIFT; + sys_reg |= (sdram_params->base.num_channels - 1) + << SYS_REG_NUM_CH_SHIFT; + for (channel = 0, idx = 0; + (idx < sdram_params->base.num_channels) && (channel < 2); + channel++) { + const struct rk3399_sdram_channel *info = + &sdram_params->ch[channel]; + struct rk3399_msch_regs *ddr_msch_regs; + const struct rk3399_msch_timings *noc_timing; + + if (sdram_params->ch[channel].col == 0) + continue; + idx++; + sys_reg |= info->row_3_4 << SYS_REG_ROW_3_4_SHIFT(channel); + sys_reg |= 1 << SYS_REG_CHINFO_SHIFT(channel); + sys_reg |= (info->rank - 1) << SYS_REG_RANK_SHIFT(channel); + sys_reg |= (info->col - 9) << SYS_REG_COL_SHIFT(channel); + sys_reg |= info->bk == 3 ? 0 : 1 << SYS_REG_BK_SHIFT(channel); + sys_reg |= (info->cs0_row - 13) << SYS_REG_CS0_ROW_SHIFT(channel); + sys_reg |= (info->cs1_row - 13) << SYS_REG_CS1_ROW_SHIFT(channel); + sys_reg |= (2 >> info->bw) << SYS_REG_BW_SHIFT(channel); + sys_reg |= (2 >> info->dbw) << SYS_REG_DBW_SHIFT(channel); + + ddr_msch_regs = dram->chan[channel].msch; + noc_timing = &sdram_params->ch[channel].noc_timings; + writel(noc_timing->ddrtiminga0, + &ddr_msch_regs->ddrtiminga0); + writel(noc_timing->ddrtimingb0, + &ddr_msch_regs->ddrtimingb0); + writel(noc_timing->ddrtimingc0, + &ddr_msch_regs->ddrtimingc0); + writel(noc_timing->devtodev0, + &ddr_msch_regs->devtodev0); + writel(noc_timing->ddrmode, + &ddr_msch_regs->ddrmode); + + /* rank 1 memory clock disable (dfi_dram_clk_disable = 1) */ + if (sdram_params->ch[channel].rank == 1) + setbits_le32(&dram->chan[channel].pctl->denali_ctl[276], + 1 << 17); + } + + writel(sys_reg, &dram->pmugrf->os_reg2); + rk_clrsetreg(&dram->pmusgrf->soc_con4, 0x1f << 10, + sdram_params->base.stride << 10); + + /* reboot hold register set */ + writel(PRESET_SGRF_HOLD(0) | PRESET_GPIO0_HOLD(1) | + PRESET_GPIO1_HOLD(1), + &dram->pmucru->pmucru_rstnhold_con[1]); + clrsetbits_le32(&dram->cru->glb_rst_con, 0x3, 0x3); +} + +static int switch_to_phy_index1(struct dram_info *dram, + const struct rk3399_sdram_params *sdram_params) +{ + u32 channel; + u32 *denali_phy; + u32 ch_count = sdram_params->base.num_channels; + int ret; + int i = 0; + + writel(RK_CLRSETBITS(0x03 << 4 | 1 << 2 | 1, + 1 << 4 | 1 << 2 | 1), + &dram->cic->cic_ctrl0); + while (!(readl(&dram->cic->cic_status0) & (1 << 2))) { + mdelay(10); + i++; + if (i > 10) { + debug("index1 frequency change overtime\n"); + return -ETIME; + } + } + + i = 0; + writel(RK_CLRSETBITS(1 << 1, 1 << 1), &dram->cic->cic_ctrl0); + while (!(readl(&dram->cic->cic_status0) & (1 << 0))) { + mdelay(10); + if (i > 10) { + debug("index1 frequency done overtime\n"); + return -ETIME; + } + } + + for (channel = 0; channel < ch_count; channel++) { + denali_phy = dram->chan[channel].publ->denali_phy; + clrsetbits_le32(&denali_phy[896], (0x3 << 8) | 1, 1 << 8); + ret = data_training(&dram->chan[channel], channel, + sdram_params, PI_FULL_TRAINING); + if (ret) { + debug("index1 training failed\n"); + return ret; + } + } + + return 0; +} + +static int sdram_init(struct dram_info *dram, + const struct rk3399_sdram_params *sdram_params) +{ + unsigned char dramtype = sdram_params->base.dramtype; + unsigned int ddr_freq = sdram_params->base.ddr_freq; + int channel; + + debug("Starting SDRAM initialization...\n"); + + if ((dramtype == DDR3 && ddr_freq > 800) || + (dramtype == LPDDR3 && ddr_freq > 933) || + (dramtype == LPDDR4 && ddr_freq > 800)) { + debug("SDRAM frequency is to high!"); + return -E2BIG; + } + + for (channel = 0; channel < 2; channel++) { + const struct chan_info *chan = &dram->chan[channel]; + struct rk3399_ddr_publ_regs *publ = chan->publ; + + phy_dll_bypass_set(publ, ddr_freq); + + if (channel >= sdram_params->base.num_channels) + continue; + + if (pctl_cfg(chan, channel, sdram_params) != 0) { + printf("pctl_cfg fail, reset\n"); + return -EIO; + } + + /* LPDDR2/LPDDR3 need to wait DAI complete, max 10us */ + if (dramtype == LPDDR3) + udelay(10); + + if (data_training(chan, channel, + sdram_params, PI_FULL_TRAINING)) { + printf("SDRAM initialization failed, reset\n"); + return -EIO; + } + + set_ddrconfig(chan, sdram_params, channel, + sdram_params->ch[channel].ddrconfig); + } + dram_all_config(dram, sdram_params); + switch_to_phy_index1(dram, sdram_params); + + debug("Finish SDRAM initialization...\n"); + return 0; +} + +static int rk3399_dmc_ofdata_to_platdata(struct udevice *dev) +{ +#if !CONFIG_IS_ENABLED(OF_PLATDATA) + struct rockchip_dmc_plat *plat = dev_get_platdata(dev); + const void *blob = gd->fdt_blob; + int node = dev->of_offset; + int ret; + + ret = fdtdec_get_int_array(blob, node, "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; +} + +#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_rk3399_dmc *dtplat = &plat->dtplat; + int ret; + + ret = regmap_init_mem_platdata(dev, dtplat->reg, + ARRAY_SIZE(dtplat->reg) / 4, + &plat->map); + if (ret) + return ret; + + return 0; +} +#endif + +static int rk3399_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 rk3399_sdram_params *params = &plat->sdram_params; +#else + struct dtd_rockchip_rk3399_dmc *dtplat = &plat->dtplat; + struct rk3399_sdram_params *params = + (void *)dtplat->rockchip_sdram_params; + + ret = conv_of_platdata(dev); + if (ret) + return ret; +#endif + + priv->cic = syscon_get_first_range(ROCKCHIP_SYSCON_CIC); + priv->pmugrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUGRF); + priv->pmusgrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUSGRF); + priv->pmucru = rockchip_get_pmucru(); + priv->cru = rockchip_get_cru(); + priv->chan[0].pctl = regmap_get_range(plat->map, 0); + priv->chan[0].pi = regmap_get_range(plat->map, 1); + priv->chan[0].publ = regmap_get_range(plat->map, 2); + priv->chan[0].msch = regmap_get_range(plat->map, 3); + priv->chan[1].pctl = regmap_get_range(plat->map, 4); + priv->chan[1].pi = regmap_get_range(plat->map, 5); + priv->chan[1].publ = regmap_get_range(plat->map, 6); + priv->chan[1].msch = regmap_get_range(plat->map, 7); + + debug("con reg %p %p %p %p %p %p %p %p\n", + priv->chan[0].pctl, priv->chan[0].pi, + priv->chan[0].publ, priv->chan[0].msch, + priv->chan[1].pctl, priv->chan[1].pi, + priv->chan[1].publ, priv->chan[1].msch); + debug("cru %p, cic %p, grf %p, sgrf %p, pmucru %p\n", priv->cru, + priv->cic, priv->pmugrf, priv->pmusgrf, priv->pmucru); +#if CONFIG_IS_ENABLED(OF_PLATDATA) + ret = clk_get_by_index_platdata(dev, 0, dtplat->clocks, &priv->ddr_clk); +#else + ret = clk_get_by_index(dev, 0, &priv->ddr_clk); +#endif + if (ret) { + printf("%s clk get failed %d\n", __func__, ret); + return ret; + } + ret = clk_set_rate(&priv->ddr_clk, params->base.ddr_freq * MHz); + if (ret < 0) { + printf("%s clk set failed %d\n", __func__, ret); + return ret; + } + ret = sdram_init(priv, params); + if (ret < 0) { + printf("%s DRAM init failed%d\n", __func__, ret); + return ret; + } + + return 0; +} +#endif + +size_t sdram_size_mb(struct dram_info *dram) +{ + u32 rank, col, bk, cs0_row, cs1_row, bw, row_3_4; + size_t chipsize_mb = 0; + size_t size_mb = 0; + u32 ch; + + u32 sys_reg = readl(&dram->pmugrf->os_reg2); + u32 ch_num = 1 + ((sys_reg >> SYS_REG_NUM_CH_SHIFT) + & SYS_REG_NUM_CH_MASK); + + for (ch = 0; ch < ch_num; ch++) { + rank = 1 + (sys_reg >> SYS_REG_RANK_SHIFT(ch) & + SYS_REG_RANK_MASK); + col = 9 + (sys_reg >> SYS_REG_COL_SHIFT(ch) & SYS_REG_COL_MASK); + bk = 3 - ((sys_reg >> SYS_REG_BK_SHIFT(ch)) & SYS_REG_BK_MASK); + cs0_row = 13 + (sys_reg >> SYS_REG_CS0_ROW_SHIFT(ch) & + SYS_REG_CS0_ROW_MASK); + cs1_row = 13 + (sys_reg >> SYS_REG_CS1_ROW_SHIFT(ch) & + SYS_REG_CS1_ROW_MASK); + bw = (2 >> ((sys_reg >> SYS_REG_BW_SHIFT(ch)) & + SYS_REG_BW_MASK)); + row_3_4 = sys_reg >> SYS_REG_ROW_3_4_SHIFT(ch) & + SYS_REG_ROW_3_4_MASK; + + chipsize_mb = (1 << (cs0_row + col + bk + bw - 20)); + + if (rank > 1) + chipsize_mb += chipsize_mb >> (cs0_row - cs1_row); + if (row_3_4) + chipsize_mb = chipsize_mb * 3 / 4; + size_mb += chipsize_mb; + } + + /* + * we use the 0x00000000~0xf7ffffff space + * since 0xf8000000~0xffffffff is soc register space + * so we reserve it + */ + size_mb = min_t(size_t, size_mb, 0xf8000000/(1<<20)); + + return size_mb; +} + +static int rk3399_dmc_probe(struct udevice *dev) +{ +#ifdef CONFIG_SPL_BUILD + if (rk3399_dmc_init(dev)) + return 0; +#else + struct dram_info *priv = dev_get_priv(dev); + + priv->pmugrf = syscon_get_first_range(ROCKCHIP_SYSCON_PMUGRF); + debug("%s: pmugrf=%p\n", __func__, priv->pmugrf); +#endif + return 0; +} + +static int rk3399_dmc_get_info(struct udevice *dev, struct ram_info *info) +{ + struct dram_info *priv = dev_get_priv(dev); + + info = &priv->info; + priv->info.base = 0; + priv->info.size = sdram_size_mb(priv) << 20; + + return 0; +} + +static struct ram_ops rk3399_dmc_ops = { + .get_info = rk3399_dmc_get_info, +}; + + +static const struct udevice_id rk3399_dmc_ids[] = { + { .compatible = "rockchip,rk3399-dmc" }, + { } +}; + +U_BOOT_DRIVER(dmc_rk3399) = { + .name = "rockchip_rk3399_dmc", + .id = UCLASS_RAM, + .of_match = rk3399_dmc_ids, + .ops = &rk3399_dmc_ops, +#ifdef CONFIG_SPL_BUILD + .ofdata_to_platdata = rk3399_dmc_ofdata_to_platdata, +#endif + .probe = rk3399_dmc_probe, +#ifdef CONFIG_SPL_BUILD + .priv_auto_alloc_size = sizeof(struct dram_info), + .platdata_auto_alloc_size = sizeof(struct rockchip_dmc_plat), +#endif +}; diff --git a/doc/device-tree-bindings/clock/rockchip,rk3399-dmc.txt b/doc/device-tree-bindings/clock/rockchip,rk3399-dmc.txt new file mode 100644 index 0000000000..a15dc5d1f8 --- /dev/null +++ b/doc/device-tree-bindings/clock/rockchip,rk3399-dmc.txt @@ -0,0 +1,42 @@ +Rockchip Dynamic Memory Controller Driver +Required properties: +- compatible: "rockchip,rk3399-dmc", "syscon" +- rockchip,cru: this driver should access cru regs, so need get cru here +- rockchip,pmucru: this driver should access pmucru regs, so need get pmucru here +- rockchip,pmugrf: this driver should access pmugrf regs, so need get pmugrf here +- rockchip,pmusgrf: this driver should access pmusgrf regs, so need get pmusgrf here +- rockchip,cic: this driver should access cic regs, so need get cic here +- reg: dynamic ram protocol controller(PCTL) address, PHY Independent(PI) address, phy controller(PHYCTL) address and memory schedule(MSCH) address +- clock: must include clock specifiers corresponding to entries in the clock-names property. + Must contain + dmc_clk: for ddr working frequency +- rockchip,sdram-params: SDRAM parameters, including all the information by ddr driver: + Must contain + Genarate by vendor tool and adjust for U-Boot dtsi. + +Example: + dmc: dmc { + u-boot,dm-pre-reloc; + compatible = "rockchip,rk3399-dmc"; + devfreq-events = <&dfi>; + interrupts = ; + clocks = <&cru SCLK_DDRCLK>; + clock-names = "dmc_clk"; + reg = <0x0 0xffa80000 0x0 0x0800 + 0x0 0xffa80800 0x0 0x1800 + 0x0 0xffa82000 0x0 0x2000 + 0x0 0xffa84000 0x0 0x1000 + 0x0 0xffa88000 0x0 0x0800 + 0x0 0xffa88800 0x0 0x1800 + 0x0 0xffa8a000 0x0 0x2000 + 0x0 0xffa8c000 0x0 0x1000>; + }; + + &dmc { + rockchip,sdram-params = < + 0x2 + 0xa + 0x3 + ... + >; + }; -- 2.25.1