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u-boot/drivers/ram/rockchip/sdram_rk3399.c
YouMin Chen f8088bfc85 ram: rk3399: Clean up code 
Clean up rk3399 dram driver source code for more readable.

Signed-off-by: YouMin Chen <cym@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
2019-11-17 16:23:56 +08:00

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// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
/*
* (C) Copyright 2016-2017 Rockchip Inc.
*
* Adapted from coreboot.
*/
#include <common.h>
#include <clk.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_rk3399.h>
#include <asm/arch-rockchip/grf_rk3399.h>
#include <asm/arch-rockchip/pmu_rk3399.h>
#include <asm/arch-rockchip/hardware.h>
#include <asm/arch-rockchip/sdram.h>
#include <asm/arch-rockchip/sdram_rk3399.h>
#include <linux/err.h>
#include <time.h>
#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
#define PHY_BOOSTP_EN 0x1
#define PHY_BOOSTN_EN 0x1
#define PHY_SLEWP_EN 0x1
#define PHY_SLEWN_EN 0x1
#define PHY_RX_CM_INPUT 0x1
#define CS0_MR22_VAL 0
#define CS1_MR22_VAL 3
#define CRU_SFTRST_DDR_CTRL(ch, n) ((0x1 << (8 + 16 + (ch) * 4)) | \
((n) << (8 + (ch) * 4)))
#define CRU_SFTRST_DDR_PHY(ch, n) ((0x1 << (9 + 16 + (ch) * 4)) | \
((n) << (9 + (ch) * 4)))
struct chan_info {
struct rk3399_ddr_pctl_regs *pctl;
struct rk3399_ddr_pi_regs *pi;
struct rk3399_ddr_publ_regs *publ;
struct msch_regs *msch;
};
struct dram_info {
#if defined(CONFIG_TPL_BUILD) || \
(!defined(CONFIG_TPL) && defined(CONFIG_SPL_BUILD))
u32 pwrup_srefresh_exit[2];
struct chan_info chan[2];
struct clk ddr_clk;
struct rk3399_cru *cru;
struct rk3399_grf_regs *grf;
struct rk3399_pmu_regs *pmu;
struct rk3399_pmucru *pmucru;
struct rk3399_pmusgrf_regs *pmusgrf;
struct rk3399_ddr_cic_regs *cic;
const struct sdram_rk3399_ops *ops;
#endif
struct ram_info info;
struct rk3399_pmugrf_regs *pmugrf;
};
struct sdram_rk3399_ops {
int (*data_training_first)(struct dram_info *dram, u32 channel, u8 rank,
struct rk3399_sdram_params *sdram);
int (*set_rate_index)(struct dram_info *dram,
struct rk3399_sdram_params *params);
};
#if defined(CONFIG_TPL_BUILD) || \
(!defined(CONFIG_TPL) && defined(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;
};
struct io_setting {
u32 mhz;
u32 mr5;
/* dram side */
u32 dq_odt;
u32 ca_odt;
u32 pdds;
u32 dq_vref;
u32 ca_vref;
/* phy side */
u32 rd_odt;
u32 wr_dq_drv;
u32 wr_ca_drv;
u32 wr_ckcs_drv;
u32 rd_odt_en;
u32 rd_vref;
} lpddr4_io_setting[] = {
{
50 * MHz,
0,
/* dram side */
0, /* dq_odt; */
0, /* ca_odt; */
6, /* pdds; */
0x72, /* dq_vref; */
0x72, /* ca_vref; */
/* phy side */
PHY_DRV_ODT_HI_Z, /* rd_odt; */
PHY_DRV_ODT_40, /* wr_dq_drv; */
PHY_DRV_ODT_40, /* wr_ca_drv; */
PHY_DRV_ODT_40, /* wr_ckcs_drv; */
0, /* rd_odt_en;*/
41, /* rd_vref; (unit %, range 3.3% - 48.7%) */
},
{
600 * MHz,
0,
/* dram side */
1, /* dq_odt; */
0, /* ca_odt; */
6, /* pdds; */
0x72, /* dq_vref; */
0x72, /* ca_vref; */
/* phy side */
PHY_DRV_ODT_HI_Z, /* rd_odt; */
PHY_DRV_ODT_48, /* wr_dq_drv; */
PHY_DRV_ODT_40, /* wr_ca_drv; */
PHY_DRV_ODT_40, /* wr_ckcs_drv; */
0, /* rd_odt_en; */
32, /* rd_vref; (unit %, range 3.3% - 48.7%) */
},
{
800 * MHz,
0,
/* dram side */
1, /* dq_odt; */
0, /* ca_odt; */
1, /* pdds; */
0x72, /* dq_vref; */
0x72, /* ca_vref; */
/* phy side */
PHY_DRV_ODT_40, /* rd_odt; */
PHY_DRV_ODT_48, /* wr_dq_drv; */
PHY_DRV_ODT_40, /* wr_ca_drv; */
PHY_DRV_ODT_40, /* wr_ckcs_drv; */
1, /* rd_odt_en; */
17, /* rd_vref; (unit %, range 3.3% - 48.7%) */
},
{
933 * MHz,
0,
/* dram side */
3, /* dq_odt; */
0, /* ca_odt; */
6, /* pdds; */
0x59, /* dq_vref; 32% */
0x72, /* ca_vref; */
/* phy side */
PHY_DRV_ODT_HI_Z, /* rd_odt; */
PHY_DRV_ODT_48, /* wr_dq_drv; */
PHY_DRV_ODT_40, /* wr_ca_drv; */
PHY_DRV_ODT_40, /* wr_ckcs_drv; */
0, /* rd_odt_en; */
32, /* rd_vref; (unit %, range 3.3% - 48.7%) */
},
{
1066 * MHz,
0,
/* dram side */
6, /* dq_odt; */
0, /* ca_odt; */
1, /* pdds; */
0x10, /* dq_vref; */
0x72, /* ca_vref; */
/* phy side */
PHY_DRV_ODT_40, /* rd_odt; */
PHY_DRV_ODT_60, /* wr_dq_drv; */
PHY_DRV_ODT_40, /* wr_ca_drv; */
PHY_DRV_ODT_40, /* wr_ckcs_drv; */
1, /* rd_odt_en; */
17, /* rd_vref; (unit %, range 3.3% - 48.7%) */
},
};
static struct io_setting *
lpddr4_get_io_settings(const struct rk3399_sdram_params *params, u32 mr5)
{
struct io_setting *io = NULL;
u32 n;
for (n = 0; n < ARRAY_SIZE(lpddr4_io_setting); n++) {
io = &lpddr4_io_setting[n];
if (io->mr5 != 0) {
if (io->mhz >= params->base.ddr_freq &&
io->mr5 == mr5)
break;
} else {
if (io->mhz >= params->base.ddr_freq)
break;
}
}
return io;
}
static void *get_denali_ctl(const struct chan_info *chan,
struct rk3399_sdram_params *params, bool reg)
{
return reg ? &chan->pctl->denali_ctl : &params->pctl_regs.denali_ctl;
}
static void *get_denali_phy(const struct chan_info *chan,
struct rk3399_sdram_params *params, bool reg)
{
return reg ? &chan->publ->denali_phy : &params->phy_regs.denali_phy;
}
static void *get_ddrc0_con(struct dram_info *dram, u8 channel)
{
return (channel == 0) ? &dram->grf->ddrc0_con0 : &dram->grf->ddrc0_con1;
}
static void rkclk_ddr_reset(struct rk3399_cru *cru, u32 channel, u32 ctl,
u32 phy)
{
channel &= 0x1;
ctl &= 0x1;
phy &= 0x1;
writel(CRU_SFTRST_DDR_CTRL(channel, ctl) |
CRU_SFTRST_DDR_PHY(channel, phy),
&cru->softrst_con[4]);
}
static void phy_pctrl_reset(struct rk3399_cru *cru, u32 channel)
{
rkclk_ddr_reset(cru, channel, 1, 1);
udelay(10);
rkclk_ddr_reset(cru, channel, 1, 0);
udelay(10);
rkclk_ddr_reset(cru, channel, 0, 0);
udelay(10);
}
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 *params)
{
const struct rk3399_sdram_channel *sdram_ch = &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->cap_info.ddrconfig < 2 ||
sdram_ch->cap_info.ddrconfig == 4)
row = 16;
else if (sdram_ch->cap_info.ddrconfig == 3)
row = 14;
else
row = 15;
cs_map = (sdram_ch->cap_info.rank > 1) ? 3 : 1;
reduc = (sdram_ch->cap_info.bw == 2) ? 0 : 1;
/* Set the dram configuration to ctrl */
clrsetbits_le32(&denali_ctl[191], 0xF, (12 - sdram_ch->cap_info.col));
clrsetbits_le32(&denali_ctl[190], (0x3 << 16) | (0x7 << 24),
((3 - sdram_ch->cap_info.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->cap_info.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->cap_info.bk) << 16) |
((16 - row) << 24));
if (params->base.dramtype == LPDDR4) {
if (cs_map == 1)
cs_map = 0x5;
else if (cs_map == 2)
cs_map = 0xa;
else
cs_map = 0xF;
}
/* PI_41 PI_CS_MAP:RW:24:4 */
clrsetbits_le32(&denali_pi[41], 0xf << 24, cs_map << 24);
if (sdram_ch->cap_info.rank == 1 && params->base.dramtype == DDR3)
writel(0x2EC7FFFF, &denali_pi[34]);
}
static int phy_io_config(const struct chan_info *chan,
const struct rk3399_sdram_params *params, u32 mr5)
{
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 & mode setting */
if (params->base.dramtype == LPDDR4) {
struct io_setting *io = lpddr4_get_io_settings(params, mr5);
u32 rd_vref = io->rd_vref * 1000;
if (rd_vref < 36700) {
/* MODE_LV[2:0] = LPDDR4 (Range 2)*/
vref_mode_dq = 0x7;
/* MODE[2:0]= LPDDR4 Range 2(0.4*VDDQ) */
mode_sel = 0x5;
vref_value_dq = (rd_vref - 3300) / 521;
} else {
/* MODE_LV[2:0] = LPDDR4 (Range 1)*/
vref_mode_dq = 0x6;
/* MODE[2:0]= LPDDR4 Range 1(0.33*VDDQ) */
mode_sel = 0x4;
vref_value_dq = (rd_vref - 15300) / 521;
}
vref_mode_ac = 0x6;
/* VDDQ/3/2=16.8% */
vref_value_ac = 0x3;
} else if (params->base.dramtype == LPDDR3) {
if (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;
mode_sel = 0x0;
} else if (params->base.dramtype == DDR3) {
/* DDR3L */
vref_mode_dq = 0x1;
vref_value_dq = 0x1f;
vref_mode_ac = 0x1;
vref_value_ac = 0x1f;
mode_sel = 0x1;
} 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);
/* 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);
if (params->base.dramtype == LPDDR4) {
/* BOOSTP_EN & BOOSTN_EN */
reg_value = ((PHY_BOOSTP_EN << 4) | PHY_BOOSTN_EN);
/* PHY_925 PHY_PAD_FDBK_DRIVE2 */
clrsetbits_le32(&denali_phy[925], 0xff << 8, reg_value << 8);
/* PHY_926 PHY_PAD_DATA_DRIVE */
clrsetbits_le32(&denali_phy[926], 0xff << 12, reg_value << 12);
/* PHY_927 PHY_PAD_DQS_DRIVE */
clrsetbits_le32(&denali_phy[927], 0xff << 14, reg_value << 14);
/* PHY_928 PHY_PAD_ADDR_DRIVE */
clrsetbits_le32(&denali_phy[928], 0xff << 20, reg_value << 20);
/* PHY_929 PHY_PAD_CLK_DRIVE */
clrsetbits_le32(&denali_phy[929], 0xff << 22, reg_value << 22);
/* PHY_935 PHY_PAD_CKE_DRIVE */
clrsetbits_le32(&denali_phy[935], 0xff << 20, reg_value << 20);
/* PHY_937 PHY_PAD_RST_DRIVE */
clrsetbits_le32(&denali_phy[937], 0xff << 20, reg_value << 20);
/* PHY_939 PHY_PAD_CS_DRIVE */
clrsetbits_le32(&denali_phy[939], 0xff << 20, reg_value << 20);
/* SLEWP_EN & SLEWN_EN */
reg_value = ((PHY_SLEWP_EN << 3) | PHY_SLEWN_EN);
/* PHY_924 PHY_PAD_FDBK_DRIVE */
clrsetbits_le32(&denali_phy[924], 0x3f << 8, reg_value << 8);
/* PHY_926 PHY_PAD_DATA_DRIVE */
clrsetbits_le32(&denali_phy[926], 0x3f, reg_value);
/* PHY_927 PHY_PAD_DQS_DRIVE */
clrsetbits_le32(&denali_phy[927], 0x3f, reg_value);
/* PHY_928 PHY_PAD_ADDR_DRIVE */
clrsetbits_le32(&denali_phy[928], 0x3f << 8, reg_value << 8);
/* PHY_929 PHY_PAD_CLK_DRIVE */
clrsetbits_le32(&denali_phy[929], 0x3f << 8, reg_value << 8);
/* PHY_935 PHY_PAD_CKE_DRIVE */
clrsetbits_le32(&denali_phy[935], 0x3f << 8, reg_value << 8);
/* PHY_937 PHY_PAD_RST_DRIVE */
clrsetbits_le32(&denali_phy[937], 0x3f << 8, reg_value << 8);
/* PHY_939 PHY_PAD_CS_DRIVE */
clrsetbits_le32(&denali_phy[939], 0x3f << 8, reg_value << 8);
}
/* speed setting */
if (params->base.ddr_freq < 400)
speed = 0x0;
else if (params->base.ddr_freq < 800)
speed = 0x1;
else if (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);
if (params->base.dramtype == LPDDR4) {
/* RX_CM_INPUT */
reg_value = PHY_RX_CM_INPUT;
/* PHY_924 PHY_PAD_FDBK_DRIVE */
clrsetbits_le32(&denali_phy[924], 0x1 << 14, reg_value << 14);
/* PHY_926 PHY_PAD_DATA_DRIVE */
clrsetbits_le32(&denali_phy[926], 0x1 << 11, reg_value << 11);
/* PHY_927 PHY_PAD_DQS_DRIVE */
clrsetbits_le32(&denali_phy[927], 0x1 << 13, reg_value << 13);
/* PHY_928 PHY_PAD_ADDR_DRIVE */
clrsetbits_le32(&denali_phy[928], 0x1 << 19, reg_value << 19);
/* PHY_929 PHY_PAD_CLK_DRIVE */
clrsetbits_le32(&denali_phy[929], 0x1 << 21, reg_value << 21);
/* PHY_935 PHY_PAD_CKE_DRIVE */
clrsetbits_le32(&denali_phy[935], 0x1 << 19, reg_value << 19);
/* PHY_937 PHY_PAD_RST_DRIVE */
clrsetbits_le32(&denali_phy[937], 0x1 << 19, reg_value << 19);
/* PHY_939 PHY_PAD_CS_DRIVE */
clrsetbits_le32(&denali_phy[939], 0x1 << 19, reg_value << 19);
}
return 0;
}
static void set_ds_odt(const struct chan_info *chan,
struct rk3399_sdram_params *params,
bool ctl_phy_reg, u32 mr5)
{
u32 *denali_phy = get_denali_phy(chan, params, ctl_phy_reg);
u32 *denali_ctl = get_denali_ctl(chan, params, ctl_phy_reg);
u32 tsel_idle_en, tsel_wr_en, tsel_rd_en;
u32 tsel_idle_select_p, tsel_rd_select_p;
u32 tsel_idle_select_n, tsel_rd_select_n;
u32 tsel_wr_select_dq_p, tsel_wr_select_ca_p;
u32 tsel_wr_select_dq_n, tsel_wr_select_ca_n;
u32 tsel_ckcs_select_p, tsel_ckcs_select_n;
struct io_setting *io = NULL;
u32 soc_odt = 0;
u32 reg_value;
if (params->base.dramtype == LPDDR4) {
io = lpddr4_get_io_settings(params, mr5);
tsel_rd_select_p = PHY_DRV_ODT_HI_Z;
tsel_rd_select_n = io->rd_odt;
tsel_idle_select_p = PHY_DRV_ODT_HI_Z;
tsel_idle_select_n = PHY_DRV_ODT_240;
tsel_wr_select_dq_p = io->wr_dq_drv;
tsel_wr_select_dq_n = PHY_DRV_ODT_40;
tsel_wr_select_ca_p = io->wr_ca_drv;
tsel_wr_select_ca_n = PHY_DRV_ODT_40;
tsel_ckcs_select_p = io->wr_ckcs_drv;
tsel_ckcs_select_n = PHY_DRV_ODT_34_3;
switch (tsel_rd_select_n) {
case PHY_DRV_ODT_240:
soc_odt = 1;
break;
case PHY_DRV_ODT_120:
soc_odt = 2;
break;
case PHY_DRV_ODT_80:
soc_odt = 3;
break;
case PHY_DRV_ODT_60:
soc_odt = 4;
break;
case PHY_DRV_ODT_48:
soc_odt = 5;
break;
case PHY_DRV_ODT_40:
soc_odt = 6;
break;
case PHY_DRV_ODT_34_3:
soc_odt = 6;
printf("%s: Unable to support LPDDR4 MR22 Soc ODT\n",
__func__);
break;
case PHY_DRV_ODT_HI_Z:
default:
soc_odt = 0;
break;
}
} else if (params->base.dramtype == LPDDR3) {
tsel_rd_select_p = PHY_DRV_ODT_240;
tsel_rd_select_n = PHY_DRV_ODT_HI_Z;
tsel_idle_select_p = PHY_DRV_ODT_240;
tsel_idle_select_n = PHY_DRV_ODT_HI_Z;
tsel_wr_select_dq_p = PHY_DRV_ODT_34_3;
tsel_wr_select_dq_n = PHY_DRV_ODT_34_3;
tsel_wr_select_ca_p = PHY_DRV_ODT_48;
tsel_wr_select_ca_n = PHY_DRV_ODT_48;
tsel_ckcs_select_p = PHY_DRV_ODT_34_3;
tsel_ckcs_select_n = PHY_DRV_ODT_34_3;
} else {
tsel_rd_select_p = PHY_DRV_ODT_240;
tsel_rd_select_n = PHY_DRV_ODT_240;
tsel_idle_select_p = PHY_DRV_ODT_240;
tsel_idle_select_n = PHY_DRV_ODT_240;
tsel_wr_select_dq_p = PHY_DRV_ODT_34_3;
tsel_wr_select_dq_n = PHY_DRV_ODT_34_3;
tsel_wr_select_ca_p = PHY_DRV_ODT_34_3;
tsel_wr_select_ca_n = PHY_DRV_ODT_34_3;
tsel_ckcs_select_p = PHY_DRV_ODT_34_3;
tsel_ckcs_select_n = PHY_DRV_ODT_34_3;
}
if (params->base.odt == 1) {
tsel_rd_en = 1;
if (params->base.dramtype == LPDDR4)
tsel_rd_en = io->rd_odt_en;
} else {
tsel_rd_en = 0;
}
tsel_wr_en = 0;
tsel_idle_en = 0;
/* F0_0 */
clrsetbits_le32(&denali_ctl[145], 0xFF << 16,
(soc_odt | (CS0_MR22_VAL << 3)) << 16);
/* F2_0, F1_0 */
clrsetbits_le32(&denali_ctl[146], 0xFF00FF,
((soc_odt | (CS0_MR22_VAL << 3)) << 16) |
(soc_odt | (CS0_MR22_VAL << 3)));
/* F0_1 */
clrsetbits_le32(&denali_ctl[159], 0xFF << 16,
(soc_odt | (CS1_MR22_VAL << 3)) << 16);
/* F2_1, F1_1 */
clrsetbits_le32(&denali_ctl[160], 0xFF00FF,
((soc_odt | (CS1_MR22_VAL << 3)) << 16) |
(soc_odt | (CS1_MR22_VAL << 3)));
/*
* 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_dq_n << 8) | (tsel_wr_select_dq_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 = tsel_wr_select_ca_n | (tsel_wr_select_ca_p << 0x4);
if (params->base.dramtype == LPDDR4) {
/* LPDDR4 these register read always return 0, so
* can not use clrsetbits_le32(), need to write32
*/
writel((0x300 << 8) | reg_value, &denali_phy[544]);
writel((0x300 << 8) | reg_value, &denali_phy[672]);
writel((0x300 << 8) | reg_value, &denali_phy[800]);
} else {
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 */
if (!ctl_phy_reg)
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,
tsel_ckcs_select_n | (tsel_ckcs_select_p << 0x4));
/* phy_pad_clk_drive 8bits DENALI_PHY_929 offset_0 */
clrsetbits_le32(&denali_phy[929], 0xff,
tsel_ckcs_select_n | (tsel_ckcs_select_p << 0x4));
/* phy_pad_fdbk_drive 23bit DENALI_PHY_924/925 */
clrsetbits_le32(&denali_phy[924], 0xff,
tsel_wr_select_dq_n | (tsel_wr_select_dq_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);
phy_io_config(chan, params, mr5);
}
static void pctl_start(struct dram_info *dram, u8 channel)
{
const struct chan_info *chan = &dram->chan[channel];
u32 *denali_ctl = chan->pctl->denali_ctl;
u32 *denali_phy = chan->publ->denali_phy;
u32 *ddrc0_con = get_ddrc0_con(dram, channel);
u32 count = 0;
u32 byte, tmp;
writel(0x01000000, &ddrc0_con);
clrsetbits_le32(&denali_phy[957], 0x3 << 24, 0x2 << 24);
while (!(readl(&denali_ctl[203]) & (1 << 3))) {
if (count > 1000) {
printf("%s: Failed to init pctl for channel %d\n",
__func__, channel);
while (1)
;
}
udelay(1);
count++;
}
writel(0x01000100, &ddrc0_con);
for (byte = 0; byte < 4; byte++) {
tmp = 0x820;
writel((tmp << 16) | tmp, &denali_phy[53 + (128 * byte)]);
writel((tmp << 16) | tmp, &denali_phy[54 + (128 * byte)]);
writel((tmp << 16) | tmp, &denali_phy[55 + (128 * byte)]);
writel((tmp << 16) | tmp, &denali_phy[56 + (128 * byte)]);
writel((tmp << 16) | tmp, &denali_phy[57 + (128 * byte)]);
clrsetbits_le32(&denali_phy[58 + (128 * byte)], 0xffff, tmp);
}
clrsetbits_le32(&denali_ctl[68], PWRUP_SREFRESH_EXIT,
dram->pwrup_srefresh_exit[channel]);
}
static int pctl_cfg(struct dram_info *dram, const struct chan_info *chan,
u32 channel, struct rk3399_sdram_params *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 = params->pctl_regs.denali_ctl;
const u32 *params_phy = params->phy_regs.denali_phy;
u32 tmp, tmp1, tmp2;
/*
* work around controller bug:
* Do not program DRAM_CLASS until NO_PHY_IND_TRAIN_INT is programmed
*/
sdram_copy_to_reg(&denali_ctl[1], &params_ctl[1],
sizeof(struct rk3399_ddr_pctl_regs) - 4);
writel(params_ctl[0], &denali_ctl[0]);
/*
* two channel init at the same time, then ZQ Cal Start
* at the same time, it will use the same RZQ, but cannot
* start at the same time.
*
* So, increase tINIT3 for channel 1, will avoid two
* channel ZQ Cal Start at the same time
*/
if (params->base.dramtype == LPDDR4 && channel == 1) {
tmp = ((params->base.ddr_freq * MHz + 999) / 1000);
tmp1 = readl(&denali_ctl[14]);
writel(tmp + tmp1, &denali_ctl[14]);
}
sdram_copy_to_reg(denali_pi, &params->pi_regs.denali_pi[0],
sizeof(struct rk3399_ddr_pi_regs));
/* rank count need to set for init */
set_memory_map(chan, channel, params);
writel(params->phy_regs.denali_phy[910], &denali_phy[910]);
writel(params->phy_regs.denali_phy[911], &denali_phy[911]);
writel(params->phy_regs.denali_phy[912], &denali_phy[912]);
if (params->base.dramtype == LPDDR4) {
writel(params->phy_regs.denali_phy[898], &denali_phy[898]);
writel(params->phy_regs.denali_phy[919], &denali_phy[919]);
}
dram->pwrup_srefresh_exit[channel] = 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);
/**
* LPDDR4 use PLL bypass mode for init
* not need to wait for the PLL to lock
*/
if (params->base.dramtype != LPDDR4) {
/* Waiting 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;
}
}
sdram_copy_to_reg(&denali_phy[896], &params_phy[896], (958 - 895) * 4);
sdram_copy_to_reg(&denali_phy[0], &params_phy[0], (90 - 0 + 1) * 4);
sdram_copy_to_reg(&denali_phy[128], &params_phy[128],
(218 - 128 + 1) * 4);
sdram_copy_to_reg(&denali_phy[256], &params_phy[256],
(346 - 256 + 1) * 4);
sdram_copy_to_reg(&denali_phy[384], &params_phy[384],
(474 - 384 + 1) * 4);
sdram_copy_to_reg(&denali_phy[512], &params_phy[512],
(549 - 512 + 1) * 4);
sdram_copy_to_reg(&denali_phy[640], &params_phy[640],
(677 - 640 + 1) * 4);
sdram_copy_to_reg(&denali_phy[768], &params_phy[768],
(805 - 768 + 1) * 4);
set_ds_odt(chan, params, true, 0);
/*
* 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);
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 *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 = params->ch[channel].cap_info.rank;
u32 rank_mask;
/* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
writel(0x00003f7c, (&denali_pi[175]));
if (params->base.dramtype == LPDDR4)
rank_mask = (rank == 1) ? 0x5 : 0xf;
else
rank_mask = (rank == 1) ? 0x1 : 0x3;
for (i = 0; i < 4; i++) {
if (!(rank_mask & (1 << i)))
continue;
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 *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 = params->ch[channel].cap_info.rank;
/* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
writel(0x00003f7c, (&denali_pi[175]));
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 *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 = params->ch[channel].cap_info.rank;
/* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
writel(0x00003f7c, (&denali_pi[175]));
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 *params)
{
u32 *denali_pi = chan->pi->denali_pi;
u32 i, tmp;
u32 rank = params->ch[channel].cap_info.rank;
/* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
writel(0x00003f7c, (&denali_pi[175]));
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 *params)
{
u32 *denali_pi = chan->pi->denali_pi;
u32 i, tmp;
u32 rank = params->ch[channel].cap_info.rank;
u32 rank_mask;
/* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
writel(0x00003f7c, (&denali_pi[175]));
if (params->base.dramtype == LPDDR4)
rank_mask = (rank == 1) ? 0x5 : 0xf;
else
rank_mask = (rank == 1) ? 0x1 : 0x3;
for (i = 0; i < 4; i++) {
if (!(rank_mask & (1 << i)))
continue;
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(struct dram_info *dram, u32 channel,
const struct rk3399_sdram_params *params,
u32 training_flag)
{
struct chan_info *chan = &dram->chan[channel];
u32 *denali_phy = chan->publ->denali_phy;
int ret;
/* PHY_927 PHY_PAD_DQS_DRIVE RPULL offset_22 */
setbits_le32(&denali_phy[927], (1 << 22));
if (training_flag == PI_FULL_TRAINING) {
if (params->base.dramtype == LPDDR4) {
training_flag = PI_WRITE_LEVELING |
PI_READ_GATE_TRAINING |
PI_READ_LEVELING | PI_WDQ_LEVELING;
} else if (params->base.dramtype == LPDDR3) {
training_flag = PI_CA_TRAINING | PI_WRITE_LEVELING |
PI_READ_GATE_TRAINING;
} else if (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) {
ret = data_training_ca(chan, channel, params);
if (ret < 0) {
debug("%s: data training ca failed\n", __func__);
return ret;
}
}
/* write leveling(LPDDR4,LPDDR3,DDR3 support) */
if ((training_flag & PI_WRITE_LEVELING) == PI_WRITE_LEVELING) {
ret = data_training_wl(chan, channel, params);
if (ret < 0) {
debug("%s: data training wl failed\n", __func__);
return ret;
}
}
/* read gate training(LPDDR4,LPDDR3,DDR3 support) */
if ((training_flag & PI_READ_GATE_TRAINING) == PI_READ_GATE_TRAINING) {
ret = data_training_rg(chan, channel, params);
if (ret < 0) {
debug("%s: data training rg failed\n", __func__);
return ret;
}
}
/* read leveling(LPDDR4,LPDDR3,DDR3 support) */
if ((training_flag & PI_READ_LEVELING) == PI_READ_LEVELING) {
ret = data_training_rl(chan, channel, params);
if (ret < 0) {
debug("%s: data training rl failed\n", __func__);
return ret;
}
}
/* wdq leveling(LPDDR4 support) */
if ((training_flag & PI_WDQ_LEVELING) == PI_WDQ_LEVELING) {
ret = data_training_wdql(chan, channel, params);
if (ret < 0) {
debug("%s: data training wdql failed\n", __func__);
return ret;
}
}
/* 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 *params,
unsigned char channel, u32 ddrconfig)
{
/* only need to set ddrconfig */
struct msch_regs *ddr_msch_regs = chan->msch;
unsigned int cs0_cap = 0;
unsigned int cs1_cap = 0;
cs0_cap = (1 << (params->ch[channel].cap_info.cs0_row
+ params->ch[channel].cap_info.col
+ params->ch[channel].cap_info.bk
+ params->ch[channel].cap_info.bw - 20));
if (params->ch[channel].cap_info.rank > 1)
cs1_cap = cs0_cap >> (params->ch[channel].cap_info.cs0_row
- params->ch[channel].cap_info.cs1_row);
if (params->ch[channel].cap_info.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 sdram_msch_config(struct msch_regs *msch,
struct sdram_msch_timings *noc_timings)
{
writel(noc_timings->ddrtiminga0.d32,
&msch->ddrtiminga0.d32);
writel(noc_timings->ddrtimingb0.d32,
&msch->ddrtimingb0.d32);
writel(noc_timings->ddrtimingc0.d32,
&msch->ddrtimingc0.d32);
writel(noc_timings->devtodev0.d32,
&msch->devtodev0.d32);
writel(noc_timings->ddrmode.d32,
&msch->ddrmode.d32);
}
static void dram_all_config(struct dram_info *dram,
struct rk3399_sdram_params *params)
{
u32 sys_reg2 = 0;
u32 sys_reg3 = 0;
unsigned int channel, idx;
for (channel = 0, idx = 0;
(idx < params->base.num_channels) && (channel < 2);
channel++) {
struct msch_regs *ddr_msch_regs;
struct sdram_msch_timings *noc_timing;
if (params->ch[channel].cap_info.col == 0)
continue;
idx++;
sdram_org_config(&params->ch[channel].cap_info,
&params->base, &sys_reg2,
&sys_reg3, channel);
ddr_msch_regs = dram->chan[channel].msch;
noc_timing = &params->ch[channel].noc_timings;
sdram_msch_config(ddr_msch_regs, noc_timing);
/**
* rank 1 memory clock disable (dfi_dram_clk_disable = 1)
*
* The hardware for LPDDR4 with
* - CLK0P/N connect to lower 16-bits
* - CLK1P/N connect to higher 16-bits
*
* dfi dram clk is configured via CLK1P/N, so disabling
* dfi dram clk will disable the CLK1P/N as well for lpddr4.
*/
if (params->ch[channel].cap_info.rank == 1 &&
params->base.dramtype != LPDDR4)
setbits_le32(&dram->chan[channel].pctl->denali_ctl[276],
1 << 17);
}
writel(sys_reg2, &dram->pmugrf->os_reg2);
writel(sys_reg3, &dram->pmugrf->os_reg3);
rk_clrsetreg(&dram->pmusgrf->soc_con4, 0x1f << 10,
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 void set_cap_relate_config(const struct chan_info *chan,
struct rk3399_sdram_params *params,
unsigned int channel)
{
u32 *denali_ctl = chan->pctl->denali_ctl;
u32 tmp;
struct sdram_msch_timings *noc_timing;
if (params->base.dramtype == LPDDR3) {
tmp = (8 << params->ch[channel].cap_info.bw) /
(8 << params->ch[channel].cap_info.dbw);
/**
* memdata_ratio
* 1 -> 0, 2 -> 1, 4 -> 2
*/
clrsetbits_le32(&denali_ctl[197], 0x7,
(tmp >> 1));
clrsetbits_le32(&denali_ctl[198], 0x7 << 8,
(tmp >> 1) << 8);
}
noc_timing = &params->ch[channel].noc_timings;
/*
* noc timing bw relate timing is 32 bit, and real bw is 16bit
* actually noc reg is setting at function dram_all_config
*/
if (params->ch[channel].cap_info.bw == 16 &&
noc_timing->ddrmode.b.mwrsize == 2) {
if (noc_timing->ddrmode.b.burstsize)
noc_timing->ddrmode.b.burstsize -= 1;
noc_timing->ddrmode.b.mwrsize -= 1;
noc_timing->ddrtimingc0.b.burstpenalty *= 2;
noc_timing->ddrtimingc0.b.wrtomwr *= 2;
}
}
static u32 calculate_ddrconfig(struct rk3399_sdram_params *params, u32 channel)
{
unsigned int cs0_row = params->ch[channel].cap_info.cs0_row;
unsigned int col = params->ch[channel].cap_info.col;
unsigned int bw = params->ch[channel].cap_info.bw;
u16 ddr_cfg_2_rbc[] = {
/*
* [6] highest bit col
* [5:3] max row(14+n)
* [2] insertion row
* [1:0] col(9+n),col, data bus 32bit
*
* highbitcol, max_row, insertion_row, col
*/
((0 << 6) | (2 << 3) | (0 << 2) | 0), /* 0 */
((0 << 6) | (2 << 3) | (0 << 2) | 1), /* 1 */
((0 << 6) | (1 << 3) | (0 << 2) | 2), /* 2 */
((0 << 6) | (0 << 3) | (0 << 2) | 3), /* 3 */
((0 << 6) | (2 << 3) | (1 << 2) | 1), /* 4 */
((0 << 6) | (1 << 3) | (1 << 2) | 2), /* 5 */
((1 << 6) | (0 << 3) | (0 << 2) | 2), /* 6 */
((1 << 6) | (1 << 3) | (0 << 2) | 2), /* 7 */
};
u32 i;
col -= (bw == 2) ? 0 : 1;
col -= 9;
for (i = 0; i < 4; i++) {
if ((col == (ddr_cfg_2_rbc[i] & 0x3)) &&
(cs0_row <= (((ddr_cfg_2_rbc[i] >> 3) & 0x7) + 14)))
break;
}
if (i >= 4)
i = -EINVAL;
return i;
}
#if !defined(CONFIG_RAM_RK3399_LPDDR4)
static int data_training_first(struct dram_info *dram, u32 channel, u8 rank,
struct rk3399_sdram_params *params)
{
u8 training_flag = PI_READ_GATE_TRAINING;
/*
* LPDDR3 CA training msut be trigger before
* other training.
* DDR3 is not have CA training.
*/
if (params->base.dramtype == LPDDR3)
training_flag |= PI_CA_TRAINING;
return data_training(dram, channel, params, training_flag);
}
static int switch_to_phy_index1(struct dram_info *dram,
struct rk3399_sdram_params *params)
{
u32 channel;
u32 *denali_phy;
u32 ch_count = 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);
i++;
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, channel, params, PI_FULL_TRAINING);
if (ret < 0) {
debug("index1 training failed\n");
return ret;
}
}
return 0;
}
#else
struct rk3399_sdram_params dfs_cfgs_lpddr4[] = {
#include "sdram-rk3399-lpddr4-400.inc"
#include "sdram-rk3399-lpddr4-800.inc"
};
static void *get_denali_pi(const struct chan_info *chan,
struct rk3399_sdram_params *params, bool reg)
{
return reg ? &chan->pi->denali_pi : &params->pi_regs.denali_pi;
}
static u32 lpddr4_get_phy_fn(struct rk3399_sdram_params *params, u32 ctl_fn)
{
u32 lpddr4_phy_fn[] = {1, 0, 0xb};
return lpddr4_phy_fn[ctl_fn];
}
static u32 lpddr4_get_ctl_fn(struct rk3399_sdram_params *params, u32 phy_fn)
{
u32 lpddr4_ctl_fn[] = {1, 0, 2};
return lpddr4_ctl_fn[phy_fn];
}
static u32 get_ddr_stride(struct rk3399_pmusgrf_regs *pmusgrf)
{
return ((readl(&pmusgrf->soc_con4) >> 10) & 0x1F);
}
static void set_ddr_stride(struct rk3399_pmusgrf_regs *pmusgrf, u32 stride)
{
rk_clrsetreg(&pmusgrf->soc_con4, 0x1f << 10, stride << 10);
}
/**
* read mr_num mode register
* rank = 1: cs0
* rank = 2: cs1
*/
static int read_mr(struct rk3399_ddr_pctl_regs *ddr_pctl_regs, u32 rank,
u32 mr_num, u32 *buf)
{
s32 timeout = 100;
writel(((1 << 16) | (((rank == 2) ? 1 : 0) << 8) | mr_num) << 8,
&ddr_pctl_regs->denali_ctl[118]);
while (0 == (readl(&ddr_pctl_regs->denali_ctl[203]) &
((1 << 21) | (1 << 12)))) {
udelay(1);
if (timeout <= 0) {
printf("%s: pctl timeout!\n", __func__);
return -ETIMEDOUT;
}
timeout--;
}
if (!(readl(&ddr_pctl_regs->denali_ctl[203]) & (1 << 12))) {
*buf = readl(&ddr_pctl_regs->denali_ctl[119]) & 0xFF;
} else {
printf("%s: read mr failed with 0x%x status\n", __func__,
readl(&ddr_pctl_regs->denali_ctl[17]) & 0x3);
*buf = 0;
}
setbits_le32(&ddr_pctl_regs->denali_ctl[205], (1 << 21) | (1 << 12));
return 0;
}
static int lpddr4_mr_detect(struct dram_info *dram, u32 channel, u8 rank,
struct rk3399_sdram_params *params)
{
u64 cs0_cap;
u32 stride;
u32 cs = 0, col = 0, bk = 0, bw = 0, row_3_4 = 0;
u32 cs0_row = 0, cs1_row = 0, ddrconfig = 0;
u32 mr5, mr12, mr14;
struct chan_info *chan = &dram->chan[channel];
struct rk3399_ddr_pctl_regs *ddr_pctl_regs = chan->pctl;
void __iomem *addr = NULL;
int ret = 0;
u32 val;
stride = get_ddr_stride(dram->pmusgrf);
if (params->ch[channel].cap_info.col == 0) {
ret = -EPERM;
goto end;
}
cs = params->ch[channel].cap_info.rank;
col = params->ch[channel].cap_info.col;
bk = params->ch[channel].cap_info.bk;
bw = params->ch[channel].cap_info.bw;
row_3_4 = params->ch[channel].cap_info.row_3_4;
cs0_row = params->ch[channel].cap_info.cs0_row;
cs1_row = params->ch[channel].cap_info.cs1_row;
ddrconfig = params->ch[channel].cap_info.ddrconfig;
/* 2GB */
params->ch[channel].cap_info.rank = 2;
params->ch[channel].cap_info.col = 10;
params->ch[channel].cap_info.bk = 3;
params->ch[channel].cap_info.bw = 2;
params->ch[channel].cap_info.row_3_4 = 0;
params->ch[channel].cap_info.cs0_row = 15;
params->ch[channel].cap_info.cs1_row = 15;
params->ch[channel].cap_info.ddrconfig = 1;
set_memory_map(chan, channel, params);
params->ch[channel].cap_info.ddrconfig =
calculate_ddrconfig(params, channel);
set_ddrconfig(chan, params, channel,
params->ch[channel].cap_info.ddrconfig);
set_cap_relate_config(chan, params, channel);
cs0_cap = (1 << (params->ch[channel].cap_info.bw
+ params->ch[channel].cap_info.col
+ params->ch[channel].cap_info.bk
+ params->ch[channel].cap_info.cs0_row));
if (params->ch[channel].cap_info.row_3_4)
cs0_cap = cs0_cap * 3 / 4;
if (channel == 0)
set_ddr_stride(dram->pmusgrf, 0x17);
else
set_ddr_stride(dram->pmusgrf, 0x18);
/* read and write data to DRAM, avoid be optimized by compiler. */
if (rank == 1)
addr = (void __iomem *)0x100;
else if (rank == 2)
addr = (void __iomem *)(cs0_cap + 0x100);
val = readl(addr);
writel(val + 1, addr);
read_mr(ddr_pctl_regs, rank, 5, &mr5);
read_mr(ddr_pctl_regs, rank, 12, &mr12);
read_mr(ddr_pctl_regs, rank, 14, &mr14);
if (mr5 == 0 || mr12 != 0x4d || mr14 != 0x4d) {
ret = -EINVAL;
goto end;
}
end:
params->ch[channel].cap_info.rank = cs;
params->ch[channel].cap_info.col = col;
params->ch[channel].cap_info.bk = bk;
params->ch[channel].cap_info.bw = bw;
params->ch[channel].cap_info.row_3_4 = row_3_4;
params->ch[channel].cap_info.cs0_row = cs0_row;
params->ch[channel].cap_info.cs1_row = cs1_row;
params->ch[channel].cap_info.ddrconfig = ddrconfig;
set_ddr_stride(dram->pmusgrf, stride);
return ret;
}
static void set_lpddr4_dq_odt(const struct chan_info *chan,
struct rk3399_sdram_params *params, u32 ctl_fn,
bool en, bool ctl_phy_reg, u32 mr5)
{
u32 *denali_ctl = get_denali_ctl(chan, params, ctl_phy_reg);
u32 *denali_pi = get_denali_pi(chan, params, ctl_phy_reg);
struct io_setting *io;
u32 reg_value;
io = lpddr4_get_io_settings(params, mr5);
if (en)
reg_value = io->dq_odt;
else
reg_value = 0;
switch (ctl_fn) {
case 0:
clrsetbits_le32(&denali_ctl[139], 0x7 << 24, reg_value << 24);
clrsetbits_le32(&denali_ctl[153], 0x7 << 24, reg_value << 24);
clrsetbits_le32(&denali_pi[132], 0x7 << 0, (reg_value << 0));
clrsetbits_le32(&denali_pi[139], 0x7 << 16, (reg_value << 16));
clrsetbits_le32(&denali_pi[147], 0x7 << 0, (reg_value << 0));
clrsetbits_le32(&denali_pi[154], 0x7 << 16, (reg_value << 16));
break;
case 1:
clrsetbits_le32(&denali_ctl[140], 0x7 << 0, reg_value << 0);
clrsetbits_le32(&denali_ctl[154], 0x7 << 0, reg_value << 0);
clrsetbits_le32(&denali_pi[129], 0x7 << 16, (reg_value << 16));
clrsetbits_le32(&denali_pi[137], 0x7 << 0, (reg_value << 0));
clrsetbits_le32(&denali_pi[144], 0x7 << 16, (reg_value << 16));
clrsetbits_le32(&denali_pi[152], 0x7 << 0, (reg_value << 0));
break;
case 2:
default:
clrsetbits_le32(&denali_ctl[140], 0x7 << 8, (reg_value << 8));
clrsetbits_le32(&denali_ctl[154], 0x7 << 8, (reg_value << 8));
clrsetbits_le32(&denali_pi[127], 0x7 << 0, (reg_value << 0));
clrsetbits_le32(&denali_pi[134], 0x7 << 16, (reg_value << 16));
clrsetbits_le32(&denali_pi[142], 0x7 << 0, (reg_value << 0));
clrsetbits_le32(&denali_pi[149], 0x7 << 16, (reg_value << 16));
break;
}
}
static void set_lpddr4_ca_odt(const struct chan_info *chan,
struct rk3399_sdram_params *params, u32 ctl_fn,
bool en, bool ctl_phy_reg, u32 mr5)
{
u32 *denali_ctl = get_denali_ctl(chan, params, ctl_phy_reg);
u32 *denali_pi = get_denali_pi(chan, params, ctl_phy_reg);
struct io_setting *io;
u32 reg_value;
io = lpddr4_get_io_settings(params, mr5);
if (en)
reg_value = io->ca_odt;
else
reg_value = 0;
switch (ctl_fn) {
case 0:
clrsetbits_le32(&denali_ctl[139], 0x7 << 28, reg_value << 28);
clrsetbits_le32(&denali_ctl[153], 0x7 << 28, reg_value << 28);
clrsetbits_le32(&denali_pi[132], 0x7 << 4, reg_value << 4);
clrsetbits_le32(&denali_pi[139], 0x7 << 20, reg_value << 20);
clrsetbits_le32(&denali_pi[147], 0x7 << 4, reg_value << 4);
clrsetbits_le32(&denali_pi[154], 0x7 << 20, reg_value << 20);
break;
case 1:
clrsetbits_le32(&denali_ctl[140], 0x7 << 4, reg_value << 4);
clrsetbits_le32(&denali_ctl[154], 0x7 << 4, reg_value << 4);
clrsetbits_le32(&denali_pi[129], 0x7 << 20, reg_value << 20);
clrsetbits_le32(&denali_pi[137], 0x7 << 4, reg_value << 4);
clrsetbits_le32(&denali_pi[144], 0x7 << 20, reg_value << 20);
clrsetbits_le32(&denali_pi[152], 0x7 << 4, reg_value << 4);
break;
case 2:
default:
clrsetbits_le32(&denali_ctl[140], 0x7 << 12, (reg_value << 12));
clrsetbits_le32(&denali_ctl[154], 0x7 << 12, (reg_value << 12));
clrsetbits_le32(&denali_pi[127], 0x7 << 4, reg_value << 4);
clrsetbits_le32(&denali_pi[134], 0x7 << 20, reg_value << 20);
clrsetbits_le32(&denali_pi[142], 0x7 << 4, reg_value << 4);
clrsetbits_le32(&denali_pi[149], 0x7 << 20, reg_value << 20);
break;
}
}
static void set_lpddr4_MR3(const struct chan_info *chan,
struct rk3399_sdram_params *params, u32 ctl_fn,
bool ctl_phy_reg, u32 mr5)
{
u32 *denali_ctl = get_denali_ctl(chan, params, ctl_phy_reg);
u32 *denali_pi = get_denali_pi(chan, params, ctl_phy_reg);
struct io_setting *io;
u32 reg_value;
io = lpddr4_get_io_settings(params, mr5);
reg_value = ((io->pdds << 3) | 1);
switch (ctl_fn) {
case 0:
clrsetbits_le32(&denali_ctl[138], 0xFFFF, reg_value);
clrsetbits_le32(&denali_ctl[152], 0xFFFF, reg_value);
clrsetbits_le32(&denali_pi[131], 0xFFFF << 16, reg_value << 16);
clrsetbits_le32(&denali_pi[139], 0xFFFF, reg_value);
clrsetbits_le32(&denali_pi[146], 0xFFFF << 16, reg_value << 16);
clrsetbits_le32(&denali_pi[154], 0xFFFF, reg_value);
break;
case 1:
clrsetbits_le32(&denali_ctl[138], 0xFFFF << 16,
reg_value << 16);
clrsetbits_le32(&denali_ctl[152], 0xFFFF << 16,
reg_value << 16);
clrsetbits_le32(&denali_pi[129], 0xFFFF, reg_value);
clrsetbits_le32(&denali_pi[136], 0xFFFF << 16, reg_value << 16);
clrsetbits_le32(&denali_pi[144], 0xFFFF, reg_value);
clrsetbits_le32(&denali_pi[151], 0xFFFF << 16, reg_value << 16);
break;
case 2:
default:
clrsetbits_le32(&denali_ctl[139], 0xFFFF, reg_value);
clrsetbits_le32(&denali_ctl[153], 0xFFFF, reg_value);
clrsetbits_le32(&denali_pi[126], 0xFFFF << 16, reg_value << 16);
clrsetbits_le32(&denali_pi[134], 0xFFFF, reg_value);
clrsetbits_le32(&denali_pi[141], 0xFFFF << 16, reg_value << 16);
clrsetbits_le32(&denali_pi[149], 0xFFFF, reg_value);
break;
}
}
static void set_lpddr4_MR12(const struct chan_info *chan,
struct rk3399_sdram_params *params, u32 ctl_fn,
bool ctl_phy_reg, u32 mr5)
{
u32 *denali_ctl = get_denali_ctl(chan, params, ctl_phy_reg);
u32 *denali_pi = get_denali_pi(chan, params, ctl_phy_reg);
struct io_setting *io;
u32 reg_value;
io = lpddr4_get_io_settings(params, mr5);
reg_value = io->ca_vref;
switch (ctl_fn) {
case 0:
clrsetbits_le32(&denali_ctl[140], 0xFFFF << 16,
reg_value << 16);
clrsetbits_le32(&denali_ctl[154], 0xFFFF << 16,
reg_value << 16);
clrsetbits_le32(&denali_pi[132], 0xFF << 8, reg_value << 8);
clrsetbits_le32(&denali_pi[139], 0xFF << 24, reg_value << 24);
clrsetbits_le32(&denali_pi[147], 0xFF << 8, reg_value << 8);
clrsetbits_le32(&denali_pi[154], 0xFF << 24, reg_value << 24);
break;
case 1:
clrsetbits_le32(&denali_ctl[141], 0xFFFF, reg_value);
clrsetbits_le32(&denali_ctl[155], 0xFFFF, reg_value);
clrsetbits_le32(&denali_pi[129], 0xFF << 24, reg_value << 24);
clrsetbits_le32(&denali_pi[137], 0xFF << 8, reg_value << 8);
clrsetbits_le32(&denali_pi[144], 0xFF << 24, reg_value << 24);
clrsetbits_le32(&denali_pi[152], 0xFF << 8, reg_value << 8);
break;
case 2:
default:
clrsetbits_le32(&denali_ctl[141], 0xFFFF << 16,
reg_value << 16);
clrsetbits_le32(&denali_ctl[155], 0xFFFF << 16,
reg_value << 16);
clrsetbits_le32(&denali_pi[127], 0xFF << 8, reg_value << 8);
clrsetbits_le32(&denali_pi[134], 0xFF << 24, reg_value << 24);
clrsetbits_le32(&denali_pi[142], 0xFF << 8, reg_value << 8);
clrsetbits_le32(&denali_pi[149], 0xFF << 24, reg_value << 24);
break;
}
}
static void set_lpddr4_MR14(const struct chan_info *chan,
struct rk3399_sdram_params *params, u32 ctl_fn,
bool ctl_phy_reg, u32 mr5)
{
u32 *denali_ctl = get_denali_ctl(chan, params, ctl_phy_reg);
u32 *denali_pi = get_denali_pi(chan, params, ctl_phy_reg);
struct io_setting *io;
u32 reg_value;
io = lpddr4_get_io_settings(params, mr5);
reg_value = io->dq_vref;
switch (ctl_fn) {
case 0:
clrsetbits_le32(&denali_ctl[142], 0xFFFF << 16,
reg_value << 16);
clrsetbits_le32(&denali_ctl[156], 0xFFFF << 16,
reg_value << 16);
clrsetbits_le32(&denali_pi[132], 0xFF << 16, reg_value << 16);
clrsetbits_le32(&denali_pi[140], 0xFF << 0, reg_value << 0);
clrsetbits_le32(&denali_pi[147], 0xFF << 16, reg_value << 16);
clrsetbits_le32(&denali_pi[155], 0xFF << 0, reg_value << 0);
break;
case 1:
clrsetbits_le32(&denali_ctl[143], 0xFFFF, reg_value);
clrsetbits_le32(&denali_ctl[157], 0xFFFF, reg_value);
clrsetbits_le32(&denali_pi[130], 0xFF << 0, reg_value << 0);
clrsetbits_le32(&denali_pi[137], 0xFF << 16, reg_value << 16);
clrsetbits_le32(&denali_pi[145], 0xFF << 0, reg_value << 0);
clrsetbits_le32(&denali_pi[152], 0xFF << 16, reg_value << 16);
break;
case 2:
default:
clrsetbits_le32(&denali_ctl[143], 0xFFFF << 16,
reg_value << 16);
clrsetbits_le32(&denali_ctl[157], 0xFFFF << 16,
reg_value << 16);
clrsetbits_le32(&denali_pi[127], 0xFF << 16, reg_value << 16);
clrsetbits_le32(&denali_pi[135], 0xFF << 0, reg_value << 0);
clrsetbits_le32(&denali_pi[142], 0xFF << 16, reg_value << 16);
clrsetbits_le32(&denali_pi[150], 0xFF << 0, reg_value << 0);
break;
}
}
static void lpddr4_copy_phy(struct dram_info *dram,
struct rk3399_sdram_params *params, u32 phy_fn,
struct rk3399_sdram_params *params_cfg,
u32 channel)
{
u32 *denali_ctl, *denali_phy;
u32 *denali_phy_params;
u32 speed = 0;
u32 ctl_fn, mr5;
denali_ctl = dram->chan[channel].pctl->denali_ctl;
denali_phy = dram->chan[channel].publ->denali_phy;
denali_phy_params = params_cfg->phy_regs.denali_phy;
/* switch index */
clrsetbits_le32(&denali_phy_params[896], 0x3 << 8,
phy_fn << 8);
writel(denali_phy_params[896], &denali_phy[896]);
/* phy_pll_ctrl_ca, phy_pll_ctrl */
writel(denali_phy_params[911], &denali_phy[911]);
/* phy_low_freq_sel */
clrsetbits_le32(&denali_phy[913], 0x1,
denali_phy_params[913] & 0x1);
/* phy_grp_slave_delay_x, phy_cslvl_dly_step */
writel(denali_phy_params[916], &denali_phy[916]);
writel(denali_phy_params[917], &denali_phy[917]);
writel(denali_phy_params[918], &denali_phy[918]);
/* phy_adrz_sw_wraddr_shift_x */
writel(denali_phy_params[512], &denali_phy[512]);
clrsetbits_le32(&denali_phy[513], 0xffff,
denali_phy_params[513] & 0xffff);
writel(denali_phy_params[640], &denali_phy[640]);
clrsetbits_le32(&denali_phy[641], 0xffff,
denali_phy_params[641] & 0xffff);
writel(denali_phy_params[768], &denali_phy[768]);
clrsetbits_le32(&denali_phy[769], 0xffff,
denali_phy_params[769] & 0xffff);
writel(denali_phy_params[544], &denali_phy[544]);
writel(denali_phy_params[545], &denali_phy[545]);
writel(denali_phy_params[546], &denali_phy[546]);
writel(denali_phy_params[547], &denali_phy[547]);
writel(denali_phy_params[672], &denali_phy[672]);
writel(denali_phy_params[673], &denali_phy[673]);
writel(denali_phy_params[674], &denali_phy[674]);
writel(denali_phy_params[675], &denali_phy[675]);
writel(denali_phy_params[800], &denali_phy[800]);
writel(denali_phy_params[801], &denali_phy[801]);
writel(denali_phy_params[802], &denali_phy[802]);
writel(denali_phy_params[803], &denali_phy[803]);
/*
* phy_adr_master_delay_start_x
* phy_adr_master_delay_step_x
* phy_adr_master_delay_wait_x
*/
writel(denali_phy_params[548], &denali_phy[548]);
writel(denali_phy_params[676], &denali_phy[676]);
writel(denali_phy_params[804], &denali_phy[804]);
/* phy_adr_calvl_dly_step_x */
writel(denali_phy_params[549], &denali_phy[549]);
writel(denali_phy_params[677], &denali_phy[677]);
writel(denali_phy_params[805], &denali_phy[805]);
/*
* phy_clk_wrdm_slave_delay_x
* phy_clk_wrdqz_slave_delay_x
* phy_clk_wrdqs_slave_delay_x
*/
sdram_copy_to_reg((u32 *)&denali_phy[59],
(u32 *)&denali_phy_params[59], (63 - 58) * 4);
sdram_copy_to_reg((u32 *)&denali_phy[187],
(u32 *)&denali_phy_params[187], (191 - 186) * 4);
sdram_copy_to_reg((u32 *)&denali_phy[315],
(u32 *)&denali_phy_params[315], (319 - 314) * 4);
sdram_copy_to_reg((u32 *)&denali_phy[443],
(u32 *)&denali_phy_params[443], (447 - 442) * 4);
/*
* phy_dqs_tsel_wr_timing_x 8bits denali_phy_84/212/340/468 offset_8
* dqs_tsel_wr_end[7:4] add half cycle
* phy_dq_tsel_wr_timing_x 8bits denali_phy_83/211/339/467 offset_8
* dq_tsel_wr_end[7:4] add half cycle
*/
writel(denali_phy_params[83] + (0x10 << 16), &denali_phy[83]);
writel(denali_phy_params[84] + (0x10 << 8), &denali_phy[84]);
writel(denali_phy_params[85], &denali_phy[85]);
writel(denali_phy_params[211] + (0x10 << 16), &denali_phy[211]);
writel(denali_phy_params[212] + (0x10 << 8), &denali_phy[212]);
writel(denali_phy_params[213], &denali_phy[213]);
writel(denali_phy_params[339] + (0x10 << 16), &denali_phy[339]);
writel(denali_phy_params[340] + (0x10 << 8), &denali_phy[340]);
writel(denali_phy_params[341], &denali_phy[341]);
writel(denali_phy_params[467] + (0x10 << 16), &denali_phy[467]);
writel(denali_phy_params[468] + (0x10 << 8), &denali_phy[468]);
writel(denali_phy_params[469], &denali_phy[469]);
/*
* phy_gtlvl_resp_wait_cnt_x
* phy_gtlvl_dly_step_x
* phy_wrlvl_resp_wait_cnt_x
* phy_gtlvl_final_step_x
* phy_gtlvl_back_step_x
* phy_rdlvl_dly_step_x
*
* phy_master_delay_step_x
* phy_master_delay_wait_x
* phy_wrlvl_dly_step_x
* phy_rptr_update_x
* phy_wdqlvl_dly_step_x
*/
writel(denali_phy_params[87], &denali_phy[87]);
writel(denali_phy_params[88], &denali_phy[88]);
writel(denali_phy_params[89], &denali_phy[89]);
writel(denali_phy_params[90], &denali_phy[90]);
writel(denali_phy_params[215], &denali_phy[215]);
writel(denali_phy_params[216], &denali_phy[216]);
writel(denali_phy_params[217], &denali_phy[217]);
writel(denali_phy_params[218], &denali_phy[218]);
writel(denali_phy_params[343], &denali_phy[343]);
writel(denali_phy_params[344], &denali_phy[344]);
writel(denali_phy_params[345], &denali_phy[345]);
writel(denali_phy_params[346], &denali_phy[346]);
writel(denali_phy_params[471], &denali_phy[471]);
writel(denali_phy_params[472], &denali_phy[472]);
writel(denali_phy_params[473], &denali_phy[473]);
writel(denali_phy_params[474], &denali_phy[474]);
/*
* phy_gtlvl_lat_adj_start_x
* phy_gtlvl_rddqs_slv_dly_start_x
* phy_rdlvl_rddqs_dq_slv_dly_start_x
* phy_wdqlvl_dqdm_slv_dly_start_x
*/
writel(denali_phy_params[80], &denali_phy[80]);
writel(denali_phy_params[81], &denali_phy[81]);
writel(denali_phy_params[208], &denali_phy[208]);
writel(denali_phy_params[209], &denali_phy[209]);
writel(denali_phy_params[336], &denali_phy[336]);
writel(denali_phy_params[337], &denali_phy[337]);
writel(denali_phy_params[464], &denali_phy[464]);
writel(denali_phy_params[465], &denali_phy[465]);
/*
* phy_master_delay_start_x
* phy_sw_master_mode_x
* phy_rddata_en_tsel_dly_x
*/
writel(denali_phy_params[86], &denali_phy[86]);
writel(denali_phy_params[214], &denali_phy[214]);
writel(denali_phy_params[342], &denali_phy[342]);
writel(denali_phy_params[470], &denali_phy[470]);
/*
* phy_rddqz_slave_delay_x
* phy_rddqs_dqz_fall_slave_delay_x
* phy_rddqs_dqz_rise_slave_delay_x
* phy_rddqs_dm_fall_slave_delay_x
* phy_rddqs_dm_rise_slave_delay_x
* phy_rddqs_gate_slave_delay_x
* phy_wrlvl_delay_early_threshold_x
* phy_write_path_lat_add_x
* phy_rddqs_latency_adjust_x
* phy_wrlvl_delay_period_threshold_x
* phy_wrlvl_early_force_zero_x
*/
sdram_copy_to_reg((u32 *)&denali_phy[64],
(u32 *)&denali_phy_params[64], (67 - 63) * 4);
clrsetbits_le32(&denali_phy[68], 0xfffffc00,
denali_phy_params[68] & 0xfffffc00);
sdram_copy_to_reg((u32 *)&denali_phy[69],
(u32 *)&denali_phy_params[69], (79 - 68) * 4);
sdram_copy_to_reg((u32 *)&denali_phy[192],
(u32 *)&denali_phy_params[192], (195 - 191) * 4);
clrsetbits_le32(&denali_phy[196], 0xfffffc00,
denali_phy_params[196] & 0xfffffc00);
sdram_copy_to_reg((u32 *)&denali_phy[197],
(u32 *)&denali_phy_params[197], (207 - 196) * 4);
sdram_copy_to_reg((u32 *)&denali_phy[320],
(u32 *)&denali_phy_params[320], (323 - 319) * 4);
clrsetbits_le32(&denali_phy[324], 0xfffffc00,
denali_phy_params[324] & 0xfffffc00);
sdram_copy_to_reg((u32 *)&denali_phy[325],
(u32 *)&denali_phy_params[325], (335 - 324) * 4);
sdram_copy_to_reg((u32 *)&denali_phy[448],
(u32 *)&denali_phy_params[448], (451 - 447) * 4);
clrsetbits_le32(&denali_phy[452], 0xfffffc00,
denali_phy_params[452] & 0xfffffc00);
sdram_copy_to_reg((u32 *)&denali_phy[453],
(u32 *)&denali_phy_params[453], (463 - 452) * 4);
/* phy_two_cyc_preamble_x */
clrsetbits_le32(&denali_phy[7], 0x3 << 24,
denali_phy_params[7] & (0x3 << 24));
clrsetbits_le32(&denali_phy[135], 0x3 << 24,
denali_phy_params[135] & (0x3 << 24));
clrsetbits_le32(&denali_phy[263], 0x3 << 24,
denali_phy_params[263] & (0x3 << 24));
clrsetbits_le32(&denali_phy[391], 0x3 << 24,
denali_phy_params[391] & (0x3 << 24));
/* speed */
if (params_cfg->base.ddr_freq < 400)
speed = 0x0;
else if (params_cfg->base.ddr_freq < 800)
speed = 0x1;
else if (params_cfg->base.ddr_freq < 1200)
speed = 0x2;
/* 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);
read_mr(dram->chan[channel].pctl, 1, 5, &mr5);
set_ds_odt(&dram->chan[channel], params_cfg, true, mr5);
ctl_fn = lpddr4_get_ctl_fn(params_cfg, phy_fn);
set_lpddr4_dq_odt(&dram->chan[channel], params_cfg,
ctl_fn, true, true, mr5);
set_lpddr4_ca_odt(&dram->chan[channel], params_cfg,
ctl_fn, true, true, mr5);
set_lpddr4_MR3(&dram->chan[channel], params_cfg,
ctl_fn, true, mr5);
set_lpddr4_MR12(&dram->chan[channel], params_cfg,
ctl_fn, true, mr5);
set_lpddr4_MR14(&dram->chan[channel], params_cfg,
ctl_fn, true, mr5);
/*
* if phy_sw_master_mode_x not bypass mode,
* clear phy_slice_pwr_rdc_disable.
* note: need use timings, not ddr_publ_regs
*/
if (!((denali_phy_params[86] >> 8) & (1 << 2))) {
clrbits_le32(&denali_phy[10], 1 << 16);
clrbits_le32(&denali_phy[138], 1 << 16);
clrbits_le32(&denali_phy[266], 1 << 16);
clrbits_le32(&denali_phy[394], 1 << 16);
}
/*
* when PHY_PER_CS_TRAINING_EN=1, W2W_DIFFCS_DLY_Fx can't
* smaller than 8
* NOTE: need use timings, not ddr_publ_regs
*/
if ((denali_phy_params[84] >> 16) & 1) {
if (((readl(&denali_ctl[217 + ctl_fn]) >>
16) & 0x1f) < 8)
clrsetbits_le32(&denali_ctl[217 + ctl_fn],
0x1f << 16,
8 << 16);
}
}
static void lpddr4_set_phy(struct dram_info *dram,
struct rk3399_sdram_params *params, u32 phy_fn,
struct rk3399_sdram_params *params_cfg)
{
u32 channel;
for (channel = 0; channel < 2; channel++)
lpddr4_copy_phy(dram, params, phy_fn, params_cfg,
channel);
}
static int lpddr4_set_ctl(struct dram_info *dram,
struct rk3399_sdram_params *params,
u32 fn, u32 hz)
{
u32 channel;
int ret_clk, ret;
/* cci idle req stall */
writel(0x70007, &dram->grf->soc_con0);
/* enable all clk */
setbits_le32(&dram->pmu->pmu_noc_auto_ena, (0x3 << 7));
/* idle */
setbits_le32(&dram->pmu->pmu_bus_idle_req, (0x3 << 18));
while ((readl(&dram->pmu->pmu_bus_idle_st) & (0x3 << 18))
!= (0x3 << 18))
;
/* change freq */
writel((((0x3 << 4) | (1 << 2) | 1) << 16) |
(fn << 4) | (1 << 2) | 1, &dram->cic->cic_ctrl0);
while (!(readl(&dram->cic->cic_status0) & (1 << 2)))
;
ret_clk = clk_set_rate(&dram->ddr_clk, hz);
if (ret_clk < 0) {
printf("%s clk set failed %d\n", __func__, ret_clk);
return ret_clk;
}
writel(0x20002, &dram->cic->cic_ctrl0);
while (!(readl(&dram->cic->cic_status0) & (1 << 0)))
;
/* deidle */
clrbits_le32(&dram->pmu->pmu_bus_idle_req, (0x3 << 18));
while (readl(&dram->pmu->pmu_bus_idle_st) & (0x3 << 18))
;
/* clear enable all clk */
clrbits_le32(&dram->pmu->pmu_noc_auto_ena, (0x3 << 7));
/* lpddr4 ctl2 can not do training, all training will fail */
if (!(params->base.dramtype == LPDDR4 && fn == 2)) {
for (channel = 0; channel < 2; channel++) {
if (!(params->ch[channel].cap_info.col))
continue;
ret = data_training(dram, channel, params,
PI_FULL_TRAINING);
if (ret)
printf("%s: channel %d training failed!\n",
__func__, channel);
else
debug("%s: channel %d training pass\n",
__func__, channel);
}
}
return 0;
}
static int lpddr4_set_rate(struct dram_info *dram,
struct rk3399_sdram_params *params)
{
u32 ctl_fn;
u32 phy_fn;
for (ctl_fn = 0; ctl_fn < 2; ctl_fn++) {
phy_fn = lpddr4_get_phy_fn(params, ctl_fn);
lpddr4_set_phy(dram, params, phy_fn, &dfs_cfgs_lpddr4[ctl_fn]);
lpddr4_set_ctl(dram, params, ctl_fn,
dfs_cfgs_lpddr4[ctl_fn].base.ddr_freq);
printf("%s: change freq to %d mhz %d, %d\n", __func__,
dfs_cfgs_lpddr4[ctl_fn].base.ddr_freq, ctl_fn, phy_fn);
}
return 0;
}
#endif /* CONFIG_RAM_RK3399_LPDDR4 */
static unsigned char calculate_stride(struct rk3399_sdram_params *params)
{
unsigned int stride = params->base.stride;
unsigned int channel, chinfo = 0;
unsigned int ch_cap[2] = {0, 0};
u64 cap;
for (channel = 0; channel < 2; channel++) {
unsigned int cs0_cap = 0;
unsigned int cs1_cap = 0;
struct sdram_cap_info *cap_info = &params->ch[channel].cap_info;
if (cap_info->col == 0)
continue;
cs0_cap = (1 << (cap_info->cs0_row + cap_info->col +
cap_info->bk + cap_info->bw - 20));
if (cap_info->rank > 1)
cs1_cap = cs0_cap >> (cap_info->cs0_row
- cap_info->cs1_row);
if (cap_info->row_3_4) {
cs0_cap = cs0_cap * 3 / 4;
cs1_cap = cs1_cap * 3 / 4;
}
ch_cap[channel] = cs0_cap + cs1_cap;
chinfo |= 1 << channel;
}
/* stride calculation for 1 channel */
if (params->base.num_channels == 1 && chinfo & 1)
return 0x17; /* channel a */
/* stride calculation for 2 channels, default gstride type is 256B */
if (ch_cap[0] == ch_cap[1]) {
cap = ch_cap[0] + ch_cap[1];
switch (cap) {
/* 512MB */
case 512:
stride = 0;
break;
/* 1GB */
case 1024:
stride = 0x5;
break;
/*
* 768MB + 768MB same as total 2GB memory
* useful space: 0-768MB 1GB-1792MB
*/
case 1536:
/* 2GB */
case 2048:
stride = 0x9;
break;
/* 1536MB + 1536MB */
case 3072:
stride = 0x11;
break;
/* 4GB */
case 4096:
stride = 0xD;
break;
default:
printf("%s: Unable to calculate stride for ", __func__);
print_size((cap * (1 << 20)), " capacity\n");
break;
}
}
sdram_print_stride(stride);
return stride;
}
static void clear_channel_params(struct rk3399_sdram_params *params, u8 channel)
{
params->ch[channel].cap_info.rank = 0;
params->ch[channel].cap_info.col = 0;
params->ch[channel].cap_info.bk = 0;
params->ch[channel].cap_info.bw = 32;
params->ch[channel].cap_info.dbw = 32;
params->ch[channel].cap_info.row_3_4 = 0;
params->ch[channel].cap_info.cs0_row = 0;
params->ch[channel].cap_info.cs1_row = 0;
params->ch[channel].cap_info.ddrconfig = 0;
}
static int pctl_init(struct dram_info *dram, struct rk3399_sdram_params *params)
{
int channel;
int ret;
for (channel = 0; channel < 2; channel++) {
const struct chan_info *chan = &dram->chan[channel];
struct rk3399_cru *cru = dram->cru;
struct rk3399_ddr_publ_regs *publ = chan->publ;
phy_pctrl_reset(cru, channel);
phy_dll_bypass_set(publ, params->base.ddr_freq);
ret = pctl_cfg(dram, chan, channel, params);
if (ret < 0) {
printf("%s: pctl config failed\n", __func__);
return ret;
}
/* start to trigger initialization */
pctl_start(dram, channel);
}
return 0;
}
static int sdram_init(struct dram_info *dram,
struct rk3399_sdram_params *params)
{
unsigned char dramtype = params->base.dramtype;
unsigned int ddr_freq = params->base.ddr_freq;
int channel, ch, rank;
int ret;
debug("Starting SDRAM initialization...\n");
if ((dramtype == DDR3 && ddr_freq > 933) ||
(dramtype == LPDDR3 && ddr_freq > 933) ||
(dramtype == LPDDR4 && ddr_freq > 800)) {
debug("SDRAM frequency is to high!");
return -E2BIG;
}
for (ch = 0; ch < 2; ch++) {
params->ch[ch].cap_info.rank = 2;
for (rank = 2; rank != 0; rank--) {
ret = pctl_init(dram, params);
if (ret < 0) {
printf("%s: pctl init failed\n", __func__);
return ret;
}
/* LPDDR2/LPDDR3 need to wait DAI complete, max 10us */
if (dramtype == LPDDR3)
udelay(10);
params->ch[ch].cap_info.rank = rank;
ret = dram->ops->data_training_first(dram, ch,
rank, params);
if (!ret) {
debug("%s: data trained for rank %d, ch %d\n",
__func__, rank, ch);
break;
}
}
/* Computed rank with associated channel number */
params->ch[ch].cap_info.rank = rank;
}
params->base.num_channels = 0;
for (channel = 0; channel < 2; channel++) {
const struct chan_info *chan = &dram->chan[channel];
struct sdram_cap_info *cap_info = &params->ch[channel].cap_info;
u8 training_flag = PI_FULL_TRAINING;
if (cap_info->rank == 0) {
clear_channel_params(params, channel);
continue;
} else {
params->base.num_channels++;
}
printf("Channel ");
printf(channel ? "1: " : "0: ");
/* LPDDR3 should have write and read gate training */
if (params->base.dramtype == LPDDR3)
training_flag = PI_WRITE_LEVELING |
PI_READ_GATE_TRAINING;
if (params->base.dramtype != LPDDR4) {
ret = data_training(dram, channel, params,
training_flag);
if (!ret) {
debug("%s: data train failed for channel %d\n",
__func__, ret);
continue;
}
}
sdram_print_ddr_info(cap_info, &params->base);
set_memory_map(chan, channel, params);
cap_info->ddrconfig = calculate_ddrconfig(params, channel);
set_ddrconfig(chan, params, channel, cap_info->ddrconfig);
set_cap_relate_config(chan, params, channel);
}
if (params->base.num_channels == 0) {
printf("%s: ", __func__);
sdram_print_dram_type(params->base.dramtype);
printf(" - %dMHz failed!\n", params->base.ddr_freq);
return -EINVAL;
}
params->base.stride = calculate_stride(params);
dram_all_config(dram, params);
dram->ops->set_rate_index(dram, 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);
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_ofnode(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) / 2,
&plat->map);
if (ret)
return ret;
return 0;
}
#endif
static const struct sdram_rk3399_ops rk3399_ops = {
#if !defined(CONFIG_RAM_RK3399_LPDDR4)
.data_training_first = data_training_first,
.set_rate_index = switch_to_phy_index1,
#else
.data_training_first = lpddr4_mr_detect,
.set_rate_index = lpddr4_set_rate,
#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->ops = &rk3399_ops;
priv->cic = syscon_get_first_range(ROCKCHIP_SYSCON_CIC);
priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
priv->pmu = syscon_get_first_range(ROCKCHIP_SYSCON_PMU);
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, pmu %p\n", priv->cru,
priv->cic, priv->pmugrf, priv->pmusgrf, priv->pmucru, priv->pmu);
#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
static int rk3399_dmc_probe(struct udevice *dev)
{
#if defined(CONFIG_TPL_BUILD) || \
(!defined(CONFIG_TPL) && defined(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);
priv->info.base = CONFIG_SYS_SDRAM_BASE;
priv->info.size =
rockchip_sdram_size((phys_addr_t)&priv->pmugrf->os_reg2);
#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;
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,
#if defined(CONFIG_TPL_BUILD) || \
(!defined(CONFIG_TPL) && defined(CONFIG_SPL_BUILD))
.ofdata_to_platdata = rk3399_dmc_ofdata_to_platdata,
#endif
.probe = rk3399_dmc_probe,
.priv_auto_alloc_size = sizeof(struct dram_info),
#if defined(CONFIG_TPL_BUILD) || \
(!defined(CONFIG_TPL) && defined(CONFIG_SPL_BUILD))
.platdata_auto_alloc_size = sizeof(struct rockchip_dmc_plat),
#endif
};
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