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ARM: uniphier: update DRAM init code for LD20 SoC

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Import the latest version from the Diag software.

  - Support LD21 SoC (including DDR chips in the package)
  - Per-board granule adjustment for both reference and TV boards
  - Misc cleanups

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
master
Masahiro Yamada 8 years ago
parent 682e09ff9f
commit f9d7e17e84
2 changed files with 447 additions and 62 deletions
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  1. 78
      arch/arm/mach-uniphier/dram/ddrphy-ld20-regs.h
  2. 431
      arch/arm/mach-uniphier/dram/umc-ld20.c

78
arch/arm/mach-uniphier/dram/ddrphy-ld20-regs.h
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@ -1,41 +1,55 @@
/*
* Copyright (C) 2016 Socionext Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _DDRPHY_LD20_REGS_H
#define _DDRPHY_LD20_REGS_H
#define PHY_SCL_DATA_0 0x00000104
#define PHY_SCL_DATA_1 0x00000108
#define PHY_SCL_LATENCY 0x0000010C
#define PHY_SCL_START 0x00000100
#define PHY_SCL_CONFIG_1 0x00000118
#define PHY_SCL_CONFIG_2 0x0000011C
#define PHY_PAD_CTRL 0x00000120
#define PHY_DLL_RECALIB 0x00000124
#define PHY_DLL_ADRCTRL 0x00000128
#define PHY_LANE_SEL 0x0000012C
#define PHY_DLL_TRIM_1 0x00000130
#define PHY_DLL_TRIM_2 0x00000134
#define PHY_DLL_TRIM_3 0x00000138
#define PHY_SCL_MAIN_CLK_DELTA 0x00000140
#define PHY_WRLVL_AUTOINC_TRIM 0x0000014C
#define PHY_WRLVL_DYN_ODT 0x00000150
#define PHY_WRLVL_ON_OFF 0x00000154
#define PHY_UNQ_ANALOG_DLL_1 0x0000015C
#define PHY_DLL_INCR_TRIM_1 0x00000164
#define PHY_DLL_INCR_TRIM_3 0x00000168
#define PHY_SCL_CONFIG_3 0x0000016C
#define PHY_UNIQUIFY_TSMC_IO_1 0x00000170
#define PHY_SCL_START_ADDR 0x00000188
#define PHY_DSCL_CNT 0x0000019C
#define PHY_DLL_TRIM_CLK 0x000001A4
#define PHY_DYNAMIC_BIT_LVL 0x000001AC
#define PHY_SCL_WINDOW_TRIM 0x000001B4
#define PHY_DISABLE_GATING_FOR_SCL 0x000001B8
#define PHY_SCL_CONFIG_4 0x000001BC
#define PHY_DYNAMIC_WRITE_BIT_LVL 0x000001C0
#define PHY_VREF_TRAINING 0x000001C8
#define PHY_SCL_GATE_TIMING 0x000001E0
#define PHY_REG_SHIFT 2
#define PHY_SCL_START (0x40 << (PHY_REG_SHIFT))
#define PHY_SCL_DATA_0 (0x41 << (PHY_REG_SHIFT))
#define PHY_SCL_DATA_1 (0x42 << (PHY_REG_SHIFT))
#define PHY_SCL_LATENCY (0x43 << (PHY_REG_SHIFT))
#define PHY_SCL_CONFIG_1 (0x46 << (PHY_REG_SHIFT))
#define PHY_SCL_CONFIG_2 (0x47 << (PHY_REG_SHIFT))
#define PHY_PAD_CTRL (0x48 << (PHY_REG_SHIFT))
#define PHY_DLL_RECALIB (0x49 << (PHY_REG_SHIFT))
#define PHY_DLL_ADRCTRL (0x4A << (PHY_REG_SHIFT))
#define PHY_LANE_SEL (0x4B << (PHY_REG_SHIFT))
#define PHY_DLL_TRIM_1 (0x4C << (PHY_REG_SHIFT))
#define PHY_DLL_TRIM_2 (0x4D << (PHY_REG_SHIFT))
#define PHY_DLL_TRIM_3 (0x4E << (PHY_REG_SHIFT))
#define PHY_SCL_MAIN_CLK_DELTA (0x50 << (PHY_REG_SHIFT))
#define PHY_WRLVL_AUTOINC_TRIM (0x53 << (PHY_REG_SHIFT))
#define PHY_WRLVL_DYN_ODT (0x54 << (PHY_REG_SHIFT))
#define PHY_WRLVL_ON_OFF (0x55 << (PHY_REG_SHIFT))
#define PHY_UNQ_ANALOG_DLL_1 (0x57 << (PHY_REG_SHIFT))
#define PHY_UNQ_ANALOG_DLL_2 (0x58 << (PHY_REG_SHIFT))
#define PHY_DLL_INCR_TRIM_1 (0x59 << (PHY_REG_SHIFT))
#define PHY_DLL_INCR_TRIM_3 (0x5A << (PHY_REG_SHIFT))
#define PHY_SCL_CONFIG_3 (0x5B << (PHY_REG_SHIFT))
#define PHY_UNIQUIFY_TSMC_IO_1 (0x5C << (PHY_REG_SHIFT))
#define PHY_SCL_START_ADDR (0x62 << (PHY_REG_SHIFT))
#define PHY_IP_DQ_DQS_BITWISE_TRIM (0x65 << (PHY_REG_SHIFT))
#define PHY_DSCL_CNT (0x67 << (PHY_REG_SHIFT))
#define PHY_OP_DQ_DM_DQS_BITWISE_TRIM (0x68 << (PHY_REG_SHIFT))
#define PHY_DLL_TRIM_CLK (0x69 << (PHY_REG_SHIFT))
#define PHY_DYNAMIC_BIT_LVL (0x6B << (PHY_REG_SHIFT))
#define PHY_SCL_WINDOW_TRIM (0x6D << (PHY_REG_SHIFT))
#define PHY_DISABLE_GATING_FOR_SCL (0x6E << (PHY_REG_SHIFT))
#define PHY_SCL_CONFIG_4 (0x6F << (PHY_REG_SHIFT))
#define PHY_DYNAMIC_WRITE_BIT_LVL (0x70 << (PHY_REG_SHIFT))
#define PHY_VREF_TRAINING (0x72 << (PHY_REG_SHIFT))
#define PHY_SCL_GATE_TIMING (0x78 << (PHY_REG_SHIFT))
/* MASK */
#define MSK_OP_DQ_DM_DQS_BITWISE_TRIM 0x0000007F
#define MSK_IP_DQ_DQS_BITWISE_TRIM 0x0000007F
#define MSK_OVERRIDE 0x00000080
#define PHY_BITLVL_DLY_WIDTH 6
#endif /* _DDRPHY_LD20_REGS_H */

431
arch/arm/mach-uniphier/dram/umc-ld20.c
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@ -1,7 +1,7 @@
/*
* Copyright (C) 2016 Socionext Inc.
*
* based on commit f7a4c9efe333fb1536efa86f9e96dc0ee109fedd of Diag
* based on commit a3c28918e86ad57127cf07bf8b32950cab20c03c of Diag
*
* SPDX-License-Identifier: GPL-2.0+
*/
@ -18,6 +18,7 @@
#include "umc64-regs.h"
#define DRAM_CH_NR 3
#define CONFIG_DDR_FREQ 1866
enum dram_freq {
DRAM_FREQ_1866M,
@ -30,6 +31,268 @@ enum dram_size {
DRAM_SZ_NR,
};
enum dram_board { /* board type */
DRAM_BOARD_LD20_REF, /* LD20 reference */
DRAM_BOARD_LD20_GLOBAL, /* LD20 TV */
DRAM_BOARD_LD21_REF, /* LD21 reference */
DRAM_BOARD_LD21_GLOBAL, /* LD21 TV */
DRAM_BOARD_NR,
};
#define MSK_PHY_LANE_SEL 0x000000FF
#define MSK_BIT_SEL 0x00000F00
#define MSK_DLL_MAS_DLY 0xFF000000
#define MSK_MAS_DLY 0x7F000000
#define MSK_DLLS_TRIM_CLK 0x000000FF
#define PHY_DLL_MAS_DLY_WIDTH 8
#define PHY_SLV_DLY_WIDTH 6
static void ddrphy_maskwritel(u32 data, u32 mask, void *addr)
{
u32 value;
value = (readl(addr) & ~mask) | (data & mask);
writel(value, addr);
}
static u32 ddrphy_maskreadl(u32 mask, void *addr)
{
return readl(addr) & mask;
}
/* set phy_lane_sel.phy_lane_sel */
static void ddrphy_set_phy_lane_sel(int val, void __iomem *phy_base)
{
ddrphy_maskwritel(val, MSK_PHY_LANE_SEL, phy_base + PHY_LANE_SEL);
}
/* set phy_lane_sel.bit_sel */
static void ddrphy_set_bit_sel(int bit, void __iomem *phy_base)
{
ddrphy_maskwritel(bit << 8, MSK_BIT_SEL, phy_base + PHY_LANE_SEL);
}
/* Calculating step for PUB-byte */
static int ddrphy_hpstep(int delay, void __iomem *phy_base)
{
int mdl, freq;
freq = CONFIG_DDR_FREQ; /* FIXME */
mdl = ddrphy_maskreadl(MSK_DLL_MAS_DLY, phy_base + PHY_DLL_ADRCTRL) >> 24;
return DIV_ROUND_CLOSEST(freq * delay * mdl, 2 * 1000000);
}
static void ddrphy_set_dll_trim_clk(int delay_ckoffset, void __iomem *phy_base)
{
u8 ck_step; /* ckoffset_step for clock */
u32 ck_step_all;
/* CK-Offset */
if (delay_ckoffset >= 0) {
/* shift + direction */
ck_step = min(ddrphy_hpstep(delay_ckoffset, phy_base), 127);
ck_step_all = ((0x1<<(PHY_SLV_DLY_WIDTH + 1))|ck_step);
} else{
/* shift - direction */
ck_step = min(ddrphy_hpstep(-1*delay_ckoffset, phy_base), 127);
ck_step_all = ck_step;
}
ddrphy_set_phy_lane_sel(0, phy_base);
ddrphy_maskwritel(ck_step_all, MSK_DLLS_TRIM_CLK, phy_base + PHY_DLL_TRIM_CLK);
}
static void ddrphy_set_dll_recalib(int delay_qoffset, u32 recalib_cnt,
u8 disable_recalib, u8 ctr_start_val,
void __iomem *phy_base)
{
u8 dlls_trim_adrctrl_ma, incr_dly_adrctrl_ma; /* qoffset_step and flag for inc/dec */
u32 recalib_all; /* all fields of register dll_recalib */
/* Q-Offset */
if (delay_qoffset >= 0) {
dlls_trim_adrctrl_ma = min(ddrphy_hpstep(delay_qoffset, phy_base), 63);
incr_dly_adrctrl_ma = 0x1;
} else {
dlls_trim_adrctrl_ma = min(ddrphy_hpstep(-1*delay_qoffset, phy_base), 63);
incr_dly_adrctrl_ma = 0x0;
}
recalib_all = ((ctr_start_val & 0xf) << 28) |
(incr_dly_adrctrl_ma << 27) |
((disable_recalib & 0x1) << 26) |
((recalib_cnt & 0x3ffff) << 8) |
(dlls_trim_adrctrl_ma & 0x3f);
/* write value for all bits other than bit[7:6] */
ddrphy_maskwritel(recalib_all, ~0xc0, phy_base + PHY_DLL_RECALIB);
}
static void ddrphy_set_dll_adrctrl(int delay_qoffset, u8 override_adrctrl,
void __iomem *phy_base)
{
u8 dlls_trim_adrctrl, incr_dly_adrctrl; /* qoffset_step for clock */
u32 adrctrl_all;
if (delay_qoffset >= 0) {
dlls_trim_adrctrl = min(ddrphy_hpstep(delay_qoffset, phy_base), 63);
incr_dly_adrctrl = 0x1;
} else {
dlls_trim_adrctrl = min(ddrphy_hpstep(-delay_qoffset, phy_base), 63);
incr_dly_adrctrl = 0x0;
}
adrctrl_all = (incr_dly_adrctrl << 9) |
((override_adrctrl & 0x1) << 8) |
dlls_trim_adrctrl;
ddrphy_maskwritel(adrctrl_all, 0x33f, phy_base + PHY_DLL_ADRCTRL);
}
/* dio */
static int dio_adrctrl_0[DRAM_BOARD_NR][DRAM_CH_NR] = {
{268-262, 268-263, 268-378}, /* LD20 reference */
{268-262, 268-263, 268-378}, /* LD20 TV */
{268-212, 268-268, 0}, /* LD21 reference */
{268-212, 268-268, 0}, /* LD21 TV */
};
static int dio_dlltrimclk_0[DRAM_BOARD_NR][DRAM_CH_NR] = {
{268, 268, 268}, /* LD20 reference */
{268, 268, 268}, /* LD20 TV */
{268, 268+252, 0}, /* LD21 reference */
{268, 268+202, 0}, /* LD21 TV */
};
static int dio_dllrecalib_0[DRAM_BOARD_NR][DRAM_CH_NR] = {
{268-378, 268-263, 268-378}, /* LD20 reference */
{268-378, 268-263, 268-378}, /* LD20 TV */
{268-212, 268-536, 0}, /* LD21 reference */
{268-212, 268-536, 0}, /* LD21 TV */
};
static u32 dio_phy_pad_ctrl[DRAM_BOARD_NR][DRAM_CH_NR] = {
{0x50B840B1, 0x50B840B1, 0x50B840B1}, /* LD20 reference */
{0x50BB40B1, 0x50BB40B1, 0x50BB40B1}, /* LD20 TV */
{0x50BB40B4, 0x50B840B1, 0x50BB40B1}, /* LD21 reference */
{0x50BB40B4, 0x50B840B1, 0x50BB40B1}, /* LD21 TV */
};
static u32 dio_scl_gate_timing[DRAM_CH_NR] = {0x00000140, 0x00000180, 0x00000140};
static int dio_op_dq_shift_val[DRAM_BOARD_NR][DRAM_CH_NR][32] = {
{ /* LD20 reference */
{
2, 1, 0, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1,
1, 2, 1, 1, 1, 2, 1, 1, 2, 2, 0, 1, 1, 2, 2, 1,
},
{
1, 1, 0, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 2, 1, 2, 1,
},
{
2, 2, 0, 2, 1, 1, 2, 1, 1, 1, 0, 1, 1, -1, 1, 1,
2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 0, 2, 2, 1, 2,
},
},
{ /* LD20 TV */
{
2, 1, 0, 1, 2, 1, 1, 1, 2, 1, 1, 2, 1, 1, 1, 1,
1, 2, 1, 1, 1, 2, 1, 1, 2, 2, 0, 1, 1, 2, 2, 1,
},
{
1, 1, 0, 1, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 2, 1, 2, 1,
},
{
2, 2, 0, 2, 1, 1, 2, 1, 1, 1, 0, 1, 1, -1, 1, 1,
2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 0, 2, 2, 1, 2,
},
},
{ /* LD21 reference */
{
1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 2,
1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1,
},
{ 1, 0, 2, 1, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0,
1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0,
},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
},
},
{ /* LD21 TV */
{
1, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 0, 2,
1, 1, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1,
},
{ 1, 0, 2, 1, 1, 1, 1, 0, 1, 0, 0, 1, 0, 1, 0, 0,
1, 0, 1, 0, 1, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0,
},
{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
},
},
};
static int dio_ip_dq_shift_val[DRAM_BOARD_NR][DRAM_CH_NR][32] = {
{ /* LD20 reference */
{
3, 3, 3, 2, 3, 2, 0, 2, 2, 3, 3, 1, 2, 2, 2, 2,
2, 2, 2, 2, 0, 1, 1, 1, 2, 2, 2, 2, 3, 0, 2, 2,
},
{
2, 2, 1, 1, -1, 1, 1, 1, 2, 0, 2, 2, 2, 1, 0, 2,
2, 1, 2, 1, 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2,
},
{
2, 2, 3, 2, 1, 2, 2, 2, 2, 3, 4, 2, 3, 4, 3, 3,
2, 2, 1, 2, 1, 1, 1, 1, 2, 2, 2, 2, 1, 2, 2, 1,
},
},
{ /* LD20 TV */
{
3, 3, 3, 2, 3, 2, 0, 2, 2, 3, 3, 1, 2, 2, 2, 2,
2, 2, 2, 2, 0, 1, 1, 1, 2, 2, 2, 2, 3, 0, 2, 2,
},
{
2, 2, 1, 1, -1, 1, 1, 1, 2, 0, 2, 2, 2, 1, 0, 2,
2, 1, 2, 1, 0, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2,
},
{
2, 2, 3, 2, 1, 2, 2, 2, 2, 3, 4, 2, 3, 4, 3, 3,
2, 2, 1, 2, 1, 1, 1, 1, 2, 2, 2, 2, 1, 2, 2, 1,
},
},
{ /* LD21 reference */
{
2, 2, 2, 2, 1, 2, 2, 2, 2, 3, 3, 2, 2, 2, 2, 2,
2, 1, 2, 2, 1, 1, 1, 1, 2, 2, 2, 3, 1, 2, 2, 2,
},
{
3, 4, 4, 1, 0, 1, 1, 1, 1, 2, 1, 2, 2, 3, 3, 2,
1, 0, 2, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1,
},
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
},
},
{ /* LD21 TV */
{
2, 2, 2, 2, 1, 2, 2, 2, 2, 3, 3, 2, 2, 2, 2, 2,
2, 1, 2, 2, 1, 1, 1, 1, 2, 2, 2, 3, 1, 2, 2, 2,
},
{
3, 4, 4, 1, 0, 1, 1, 1, 1, 2, 1, 2, 2, 3, 3, 2,
1, 0, 2, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 0, 1,
},
{
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
},
},
};
/* umc */
static u32 umc_initctla[DRAM_FREQ_NR] = {0x71016D11};
static u32 umc_initctlb[DRAM_FREQ_NR] = {0x07E390AC};
@ -37,15 +300,24 @@ static u32 umc_initctlc[DRAM_FREQ_NR] = {0x00FF00FF};
static u32 umc_drmmr0[DRAM_FREQ_NR] = {0x00000114};
static u32 umc_drmmr2[DRAM_FREQ_NR] = {0x000002a0};
static u32 umc_memconf0a[DRAM_FREQ_NR] = {0x00000801};
static u32 umc_memconf0b[DRAM_FREQ_NR] = {0x00000130};
static u32 umc_memconfch[DRAM_FREQ_NR] = {0x00033803};
static u32 umc_memconf0a[DRAM_FREQ_NR][DRAM_SZ_NR] = {
/* 256MB 512MB */
{0x00000601, 0x00000801}, /* 1866 MHz */
};
static u32 umc_memconf0b[DRAM_FREQ_NR][DRAM_SZ_NR] = {
/* 256MB 512MB */
{0x00000120, 0x00000130}, /* 1866 MHz */
};
static u32 umc_memconfch[DRAM_FREQ_NR][DRAM_SZ_NR] = {
/* 256MB 512MB */
{0x00033603, 0x00033803}, /* 1866 MHz */
};
static u32 umc_cmdctla[DRAM_FREQ_NR] = {0x060D0D20};
static u32 umc_cmdctlb[DRAM_FREQ_NR] = {0x2D211C08};
static u32 umc_cmdctlc[DRAM_FREQ_NR] = {0x00150C04};
static u32 umc_cmdctle[DRAM_FREQ_NR][DRAM_SZ_NR] = {
{0x0049071D, 0x0078071D},
/* 256MB 512MB */
{0x0049071D, 0x0078071D}, /* 1866 MHz */
};
static u32 umc_rdatactl_d0[DRAM_FREQ_NR] = {0x00000610};
@ -61,12 +333,22 @@ static u32 umc_directbusctrla[DRAM_CH_NR] = {
0x00000000, 0x00000001, 0x00000001
};
/* polling function for PHY Init Complete */
static void ddrphy_init_complete(void __iomem *dc_base)
{
/* Wait for PHY Init Complete */
while (!(readl(dc_base + UMC_DFISTCTLC) & BIT(0)))
cpu_relax();
}
/* DDR PHY */
static void ddrphy_init(void __iomem *phy_base, enum dram_freq freq)
static void ddrphy_init(void __iomem *phy_base, void __iomem *dc_base,
enum dram_freq freq, enum dram_board board, int ch)
{
writel(0x00000001, phy_base + PHY_UNIQUIFY_TSMC_IO_1);
while ((readl(phy_base + PHY_UNIQUIFY_TSMC_IO_1) & BIT(1)))
writel(0x0C001001, phy_base + PHY_UNIQUIFY_TSMC_IO_1);
while (!(readl(phy_base + PHY_UNIQUIFY_TSMC_IO_1) & BIT(1)))
cpu_relax();
writel(0x0C001000, phy_base + PHY_UNIQUIFY_TSMC_IO_1);
writel(0x00000000, phy_base + PHY_DLL_INCR_TRIM_3);
writel(0x00000000, phy_base + PHY_DLL_INCR_TRIM_1);
@ -84,14 +366,14 @@ static void ddrphy_init(void __iomem *phy_base, enum dram_freq freq)
writel(0x0000000a, phy_base + PHY_DLL_TRIM_3);
writel(0x00000001, phy_base + PHY_SCL_WINDOW_TRIM);
writel(0x00000000, phy_base + PHY_UNQ_ANALOG_DLL_1);
writel(0x50bb40b1, phy_base + PHY_PAD_CTRL);
writel(dio_phy_pad_ctrl[board][ch], phy_base + PHY_PAD_CTRL);
writel(0x00000070, phy_base + PHY_VREF_TRAINING);
writel(0x01000075, phy_base + PHY_SCL_CONFIG_1);
writel(0x00000501, phy_base + PHY_SCL_CONFIG_2);
writel(0x00000000, phy_base + PHY_SCL_CONFIG_3);
writel(0x000261c0, phy_base + PHY_DYNAMIC_WRITE_BIT_LVL);
writel(0x00000000, phy_base + PHY_SCL_CONFIG_4);
writel(0x000000a0, phy_base + PHY_SCL_GATE_TIMING);
writel(dio_scl_gate_timing[ch], phy_base + PHY_SCL_GATE_TIMING);
writel(0x02a000a0, phy_base + PHY_WRLVL_DYN_ODT);
writel(0x00840004, phy_base + PHY_WRLVL_ON_OFF);
writel(0x0000020d, phy_base + PHY_DLL_ADRCTRL);
@ -99,30 +381,96 @@ static void ddrphy_init(void __iomem *phy_base, enum dram_freq freq)
writel(0x0000008d, phy_base + PHY_DLL_TRIM_CLK);
writel(0xa800100d, phy_base + PHY_DLL_RECALIB);
writel(0x00005076, phy_base + PHY_SCL_LATENCY);
ddrphy_init_complete(dc_base);
ddrphy_set_dll_adrctrl(dio_adrctrl_0[board][ch], 0, phy_base);
ddrphy_set_dll_trim_clk(dio_dlltrimclk_0[board][ch], phy_base);
ddrphy_set_dll_recalib(dio_dllrecalib_0[board][ch], 0x10, 0, 0xa,
phy_base);
}
static void ddrphy_shift_dq(u32 reg_mask, u32 reg_addr, int shift_val,
void __iomem *phy_base)
{
u32 reg_val;
int dq_val;
reg_val = ddrphy_maskreadl(reg_mask, phy_base + reg_addr) & 0x7f;
dq_val = reg_val & 0x3f;
if ((reg_val & 0x40) == 0x00)
dq_val = -1 * dq_val;
/* value shift*/
dq_val = dq_val + shift_val;
if (dq_val >= 0)
reg_val = 0x40 + (dq_val & 0x3f);
else
reg_val = ((-1 * dq_val) & 0x3f);
ddrphy_maskwritel(reg_val, reg_mask, phy_base + reg_addr);
}
static int ddrphy_training(void __iomem *phy_base)
static void ddrphy_shift(void __iomem *phy_base, enum dram_board board, int ch)
{
u32 dx, bit;
/* set override = 1 */
ddrphy_maskwritel(MSK_OVERRIDE, MSK_OVERRIDE,
phy_base + PHY_OP_DQ_DM_DQS_BITWISE_TRIM);
ddrphy_maskwritel(MSK_OVERRIDE, MSK_OVERRIDE,
phy_base + PHY_IP_DQ_DQS_BITWISE_TRIM);
for (dx = 0; dx < 4; dx++) {
/* set byte to PHY_LANE_SEL.phy_lane_sel= dx * (PHY_BITLVL_DLY_WIDTH+1) */
ddrphy_set_phy_lane_sel(dx * (PHY_BITLVL_DLY_WIDTH + 1),
phy_base);
for (bit = 0; bit < 8; bit++) {
ddrphy_set_bit_sel(bit, phy_base);
/* shift write reg value*/
ddrphy_shift_dq(MSK_OP_DQ_DM_DQS_BITWISE_TRIM,
PHY_OP_DQ_DM_DQS_BITWISE_TRIM,
dio_op_dq_shift_val[board][ch][dx * 8 + bit],
phy_base);
/* shift read reg value */
ddrphy_shift_dq(MSK_IP_DQ_DQS_BITWISE_TRIM,
PHY_IP_DQ_DQS_BITWISE_TRIM,
dio_ip_dq_shift_val[board][ch][dx * 8 + bit],
phy_base);
}
}
ddrphy_set_phy_lane_sel(0, phy_base);
ddrphy_set_bit_sel(0, phy_base);
}
static int ddrphy_training(void __iomem *phy_base, enum dram_board board,
int ch)
{
writel(0x0000000f, phy_base + PHY_WRLVL_AUTOINC_TRIM);
writel(0x00010000, phy_base + PHY_DLL_TRIM_2);
writel(0x50000000, phy_base + PHY_SCL_START);
while ((readl(phy_base + PHY_SCL_START) & BIT(28)))
while (readl(phy_base + PHY_SCL_START) & BIT(28))
cpu_relax();
writel(0x00000000, phy_base + PHY_DISABLE_GATING_FOR_SCL);
writel(0xff00ff00, phy_base + PHY_SCL_DATA_0);
writel(0xff00ff00, phy_base + PHY_SCL_DATA_1);
writel(0x00080000, phy_base + PHY_SCL_START_ADDR);
writel(0xFBF8FFFF, phy_base + PHY_SCL_START_ADDR);
writel(0x11000000, phy_base + PHY_SCL_START);
while ((readl(phy_base + PHY_SCL_START) & BIT(28)))
while (readl(phy_base + PHY_SCL_START) & BIT(28))
cpu_relax();
writel(0x00000000, phy_base + PHY_SCL_START_ADDR);
writel(0xFBF0FFFF, phy_base + PHY_SCL_START_ADDR);
writel(0x30500000, phy_base + PHY_SCL_START);
while ((readl(phy_base + PHY_SCL_START) & BIT(28)))
while (readl(phy_base + PHY_SCL_START) & BIT(28))
cpu_relax();
writel(0x00000001, phy_base + PHY_DISABLE_GATING_FOR_SCL);
@ -131,16 +479,22 @@ static int ddrphy_training(void __iomem *phy_base)
writel(0xf10e4a56, phy_base + PHY_SCL_DATA_1);
writel(0x11000000, phy_base + PHY_SCL_START);
while ((readl(phy_base + PHY_SCL_START) & BIT(28)))
while (readl(phy_base + PHY_SCL_START) & BIT(28))
cpu_relax();
writel(0x34000000, phy_base + PHY_SCL_START);
while ((readl(phy_base + PHY_SCL_START) & BIT(28)))
while (readl(phy_base + PHY_SCL_START) & BIT(28))
cpu_relax();
writel(0x00000003, phy_base + PHY_DISABLE_GATING_FOR_SCL);
writel(0x000261c0, phy_base + PHY_DYNAMIC_WRITE_BIT_LVL);
writel(0x00003270, phy_base + PHY_DYNAMIC_BIT_LVL);
writel(0x011BD0C4, phy_base + PHY_DSCL_CNT);
/* shift ip_dq, op_dq trim */
ddrphy_shift(phy_base, board, ch);
return 0;
}
@ -164,10 +518,6 @@ static int umc_dc_init(void __iomem *dc_base, enum dram_freq freq,
return -EINVAL;
}
/* Wait for PHY Init Complete */
while (!(readl(dc_base + UMC_DFISTCTLC) & BIT(0)))
cpu_relax();
writel(0x00000001, dc_base + UMC_DFICSOVRRD);
writel(0x00000000, dc_base + UMC_DFITURNOFF);
@ -180,9 +530,9 @@ static int umc_dc_init(void __iomem *dc_base, enum dram_freq freq,
writel(umc_drmmr2[freq], dc_base + UMC_DRMMR2);
writel(0x00000000, dc_base + UMC_DRMMR3);
writel(umc_memconf0a[freq], dc_base + UMC_MEMCONF0A);
writel(umc_memconf0b[freq], dc_base + UMC_MEMCONF0B);
writel(umc_memconfch[freq], dc_base + UMC_MEMCONFCH);
writel(umc_memconf0a[freq][size_e], dc_base + UMC_MEMCONF0A);
writel(umc_memconf0b[freq][size_e], dc_base + UMC_MEMCONF0B);
writel(umc_memconfch[freq][size_e], dc_base + UMC_MEMCONFCH);
writel(0x00000008, dc_base + UMC_MEMMAPSET);
writel(umc_cmdctla[freq], dc_base + UMC_CMDCTLA);
@ -227,7 +577,8 @@ static int umc_dc_init(void __iomem *dc_base, enum dram_freq freq,
}
static int umc_ch_init(void __iomem *umc_ch_base, void __iomem *phy_ch_base,
enum dram_freq freq, unsigned long size, int ch)
enum dram_freq freq, enum dram_board board,
unsigned long size, int ch)
{
void __iomem *dc_base = umc_ch_base + 0x00011000;
void __iomem *phy_base = phy_ch_base;
@ -240,13 +591,13 @@ static int umc_ch_init(void __iomem *umc_ch_base, void __iomem *phy_ch_base,
writel(UMC_DIOCTLA_CTL_NRST | UMC_DIOCTLA_CFG_NRST,
dc_base + UMC_DIOCTLA);
ddrphy_init(phy_base, freq);
ddrphy_init(phy_base, dc_base, freq, board, ch);
ret = umc_dc_init(dc_base, freq, size, ch);
if (ret)
return ret;
ret = ddrphy_training(phy_base);
ret = ddrphy_training(phy_base, board, ch);
if (ret)
return ret;
@ -274,6 +625,7 @@ int uniphier_ld20_umc_init(const struct uniphier_board_data *bd)
void __iomem *umc_ch_base = (void __iomem *)0x5b800000;
void __iomem *phy_ch_base = (void __iomem *)0x6e200000;
enum dram_freq freq;
enum dram_board board;
int ch, ret;
switch (bd->dram_freq) {
@ -285,11 +637,30 @@ int uniphier_ld20_umc_init(const struct uniphier_board_data *bd)
return -EINVAL;
}
switch (UNIPHIER_BD_BOARD_GET_TYPE(bd->flags)) {
case UNIPHIER_BD_BOARD_LD20_REF:
board = DRAM_BOARD_LD20_REF;
break;
case UNIPHIER_BD_BOARD_LD20_GLOBAL:
board = DRAM_BOARD_LD20_GLOBAL;
break;
case UNIPHIER_BD_BOARD_LD21_REF:
board = DRAM_BOARD_LD21_REF;
break;
case UNIPHIER_BD_BOARD_LD21_GLOBAL:
board = DRAM_BOARD_LD21_GLOBAL;
break;
default:
pr_err("unsupported board type %d\n",
UNIPHIER_BD_BOARD_GET_TYPE(bd->flags));
return -EINVAL;
}
for (ch = 0; ch < bd->dram_nr_ch; ch++) {
unsigned long size = bd->dram_ch[ch].size;
unsigned int width = bd->dram_ch[ch].width;
ret = umc_ch_init(umc_ch_base, phy_ch_base, freq,
ret = umc_ch_init(umc_ch_base, phy_ch_base, freq, board,
size / (width / 16), ch);
if (ret) {
pr_err("failed to initialize UMC ch%d\n", ch);

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