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ARM: uniphier: update DRAM init code for LD20 SoC (2nd)

Browse source 
- Do not reference CONFIG_DDR_FREQ; now the DDR frequency
    is passed from the uniphier_board_data structure
  - Constify parameter arrays
  - Tidy up cluttered macros
  - Lots of code cleanups
  - Lots of coding style fixes

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
This commit is contained in:
Masahiro Yamada 2016-10-08 13:25:24 +09:00
parent 6c22742d3d
commit c89638a027
2 changed files with 359 additions and 336 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

37
arch/arm/mach-uniphier/dram/ddrphy-ld20-regs.h
View file

@ -7,7 +7,12 @@
#ifndef _DDRPHY_LD20_REGS_H
#define _DDRPHY_LD20_REGS_H
#include <linux/bitops.h>
#define PHY_REG_SHIFT 2
#define PHY_SLV_DLY_WIDTH 6
#define PHY_BITLVL_DLY_WIDTH 6
#define PHY_MAS_DLY_WIDTH 8
#define PHY_SCL_START (0x40 << (PHY_REG_SHIFT))
#define PHY_SCL_DATA_0 (0x41 << (PHY_REG_SHIFT))
@ -17,8 +22,19 @@
#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_RECALIB_TRIM_MASK GENMASK(PHY_SLV_DLY_WIDTH - 1, 0)
#define PHY_DLL_RECALIB_INCR BIT(27)
#define PHY_DLL_ADRCTRL (0x4A << (PHY_REG_SHIFT))
#define PHY_DLL_ADRCTRL_TRIM_MASK GENMASK(PHY_SLV_DLY_WIDTH - 1, 0)
#define PHY_DLL_ADRCTRL_INCR BIT(9)
#define PHY_DLL_ADRCTRL_MDL_SHIFT 24
#define PHY_DLL_ADRCTRL_MDL_MASK (GENMASK(PHY_MAS_DLY_WIDTH - 1, 0) << \
PHY_DLL_ADRCTRL_MDL_SHIFT)
#define PHY_LANE_SEL (0x4B << (PHY_REG_SHIFT))
#define PHY_LANE_SEL_LANE_SHIFT 0
#define PHY_LANE_SEL_LANE_WIDTH 8
#define PHY_LANE_SEL_BIT_SHIFT 8
#define PHY_LANE_SEL_BIT_WIDTH 4
#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))
@ -34,9 +50,23 @@
#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_IP_DQ_DQS_BITWISE_TRIM_MASK \
GENMASK(PHY_BITLVL_DLY_WIDTH - 1, 0)
#define PHY_IP_DQ_DQS_BITWISE_TRIM_INC \
BIT(PHY_BITLVL_DLY_WIDTH)
#define PHY_IP_DQ_DQS_BITWISE_TRIM_OVERRIDE \
BIT(PHY_BITLVL_DLY_WIDTH + 1)
#define PHY_DSCL_CNT (0x67 << (PHY_REG_SHIFT))
#define PHY_OP_DQ_DM_DQS_BITWISE_TRIM (0x68 << (PHY_REG_SHIFT))
#define PHY_OP_DQ_DM_DQS_BITWISE_TRIM_MASK \
GENMASK(PHY_BITLVL_DLY_WIDTH - 1, 0)
#define PHY_OP_DQ_DM_DQS_BITWISE_TRIM_INC \
BIT(PHY_BITLVL_DLY_WIDTH)
#define PHY_OP_DQ_DM_DQS_BITWISE_TRIM_OVERRIDE \
BIT(PHY_BITLVL_DLY_WIDTH + 1)
#define PHY_DLL_TRIM_CLK (0x69 << (PHY_REG_SHIFT))
#define PHY_DLL_TRIM_CLK_MASK GENMASK(PHY_SLV_DLY_WIDTH, 0)
#define PHY_DLL_TRIM_CLK_INCR BIT(PHY_SLV_DLY_WIDTH + 1)
#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))
@ -45,11 +75,4 @@
#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 */

658
arch/arm/mach-uniphier/dram/umc-ld20.c
View file

@ -1,7 +1,7 @@
/*
* Copyright (C) 2016 Socionext Inc.
*
* based on commit a3c28918e86ad57127cf07bf8b32950cab20c03c of Diag
* based on commit 9073035a9860f892f8d1345dfb0ea862b5021145 of Diag
*
* SPDX-License-Identifier: GPL-2.0+
*/
@ -18,7 +18,6 @@
#include "umc64-regs.h"
#define DRAM_CH_NR 3
#define CONFIG_DDR_FREQ 1866
enum dram_freq {
DRAM_FREQ_1866M,
@ -39,311 +38,196 @@ enum dram_board { /* board type */
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 */
/* PHY */
static const int ddrphy_adrctrl[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, /* No CH2 */}, /* LD21 reference */
{268 - 212, 268 - 268, /* No CH2 */}, /* LD21 TV */
};
static int dio_dlltrimclk_0[DRAM_BOARD_NR][DRAM_CH_NR] = {
static const int ddrphy_dlltrimclk[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 */
{268, 268 + 252, /* No CH2 */}, /* LD21 reference */
{268, 268 + 202, /* No CH2 */}, /* LD21 TV */
};
static u32 dio_phy_pad_ctrl[DRAM_BOARD_NR][DRAM_CH_NR] = {
static const int ddrphy_dllrecalib[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, /* No CH2 */}, /* LD21 reference */
{268 - 212, 268 - 536, /* No CH2 */}, /* LD21 TV */
};
static const u32 ddrphy_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 */
{0x50BB40B4, 0x50B840B1, /* No CH2 */}, /* LD21 reference */
{0x50BB40B4, 0x50B840B1, /* No CH2 */}, /* LD21 TV */
};
static u32 dio_scl_gate_timing[DRAM_CH_NR] = {0x00000140, 0x00000180, 0x00000140};
static const u32 ddrphy_scl_gate_timing[DRAM_CH_NR] = {
0x00000140, 0x00000180, 0x00000140
};
static int dio_op_dq_shift_val[DRAM_BOARD_NR][DRAM_CH_NR][32] = {
static const int ddrphy_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,
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,
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,
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,
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,
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,
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, 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,
{ 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,
},
/* No CH2 */
},
{ /* 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, 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,
{ 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,
},
/* No CH2 */
},
};
static int dio_ip_dq_shift_val[DRAM_BOARD_NR][DRAM_CH_NR][32] = {
static int ddrphy_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,
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, 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,
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,
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, 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,
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,
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,
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,
},
/* No CH2 */
},
{ /* 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,
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,
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,
},
/* No CH2 */
},
};
/* umc */
static u32 umc_initctla[DRAM_FREQ_NR] = {0x71016D11};
static u32 umc_initctlb[DRAM_FREQ_NR] = {0x07E390AC};
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][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] = {
/* 256MB 512MB */
{0x0049071D, 0x0078071D}, /* 1866 MHz */
};
static u32 umc_rdatactl_d0[DRAM_FREQ_NR] = {0x00000610};
static u32 umc_rdatactl_d1[DRAM_FREQ_NR] = {0x00000610};
static u32 umc_wdatactl_d0[DRAM_FREQ_NR] = {0x00000204};
static u32 umc_wdatactl_d1[DRAM_FREQ_NR] = {0x00000204};
static u32 umc_odtctl_d0[DRAM_FREQ_NR] = {0x02000002};
static u32 umc_odtctl_d1[DRAM_FREQ_NR] = {0x02000002};
static u32 umc_dataset[DRAM_FREQ_NR] = {0x04000000};
static u32 umc_flowctla[DRAM_FREQ_NR] = {0x0081E01E};
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, void __iomem *dc_base,
enum dram_freq freq, enum dram_board board, int ch)
static void ddrphy_select_lane(void __iomem *phy_base, unsigned int lane,
unsigned int bit)
{
WARN_ON(lane >= (1 << PHY_LANE_SEL_LANE_WIDTH));
WARN_ON(bit >= (1 << PHY_LANE_SEL_BIT_WIDTH));
writel((bit << PHY_LANE_SEL_BIT_SHIFT) |
(lane << PHY_LANE_SEL_LANE_SHIFT),
phy_base + PHY_LANE_SEL);
}
static void ddrphy_init(void __iomem *phy_base, enum dram_board board, int ch)
{
writel(0x0C001001, phy_base + PHY_UNIQUIFY_TSMC_IO_1);
while (!(readl(phy_base + PHY_UNIQUIFY_TSMC_IO_1) & BIT(1)))
@ -352,100 +236,148 @@ static void ddrphy_init(void __iomem *phy_base, void __iomem *dc_base,
writel(0x00000000, phy_base + PHY_DLL_INCR_TRIM_3);
writel(0x00000000, phy_base + PHY_DLL_INCR_TRIM_1);
writel(0x00000000, phy_base + PHY_LANE_SEL);
ddrphy_select_lane(phy_base, 0, 0);
writel(0x00000005, phy_base + PHY_DLL_TRIM_1);
writel(0x0000000a, phy_base + PHY_DLL_TRIM_3);
writel(0x00000006, phy_base + PHY_LANE_SEL);
ddrphy_select_lane(phy_base, 6, 0);
writel(0x00000005, phy_base + PHY_DLL_TRIM_1);
writel(0x0000000a, phy_base + PHY_DLL_TRIM_3);
writel(0x0000000c, phy_base + PHY_LANE_SEL);
ddrphy_select_lane(phy_base, 12, 0);
writel(0x00000005, phy_base + PHY_DLL_TRIM_1);
writel(0x0000000a, phy_base + PHY_DLL_TRIM_3);
writel(0x00000012, phy_base + PHY_LANE_SEL);
ddrphy_select_lane(phy_base, 18, 0);
writel(0x00000005, phy_base + PHY_DLL_TRIM_1);
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(dio_phy_pad_ctrl[board][ch], phy_base + PHY_PAD_CTRL);
writel(ddrphy_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(dio_scl_gate_timing[ch], phy_base + PHY_SCL_GATE_TIMING);
writel(ddrphy_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);
writel(0x00000000, phy_base + PHY_LANE_SEL);
ddrphy_select_lane(phy_base, 0, 0);
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)
static int ddrphy_to_dly_step(void __iomem *phy_base, unsigned int freq,
int delay)
{
u32 reg_val;
int dq_val;
int mdl;
reg_val = ddrphy_maskreadl(reg_mask, phy_base + reg_addr) & 0x7f;
dq_val = reg_val & 0x3f;
mdl = (readl(phy_base + PHY_DLL_ADRCTRL) & PHY_DLL_ADRCTRL_MDL_MASK) >>
PHY_DLL_ADRCTRL_MDL_SHIFT;
if ((reg_val & 0x40) == 0x00)
dq_val = -1 * dq_val;
return DIV_ROUND_CLOSEST((long)freq * delay * mdl, 2 * 1000000L);
}
/* value shift*/
dq_val = dq_val + shift_val;
static void ddrphy_set_delay(void __iomem *phy_base, unsigned int reg,
u32 mask, u32 incr, int dly_step)
{
u32 tmp;
if (dq_val >= 0)
reg_val = 0x40 + (dq_val & 0x3f);
tmp = readl(phy_base + reg);
tmp &= ~mask;
tmp |= min_t(u32, abs(dly_step), mask);
if (dly_step >= 0)
tmp |= incr;
else
reg_val = ((-1 * dq_val) & 0x3f);
tmp &= ~incr;
ddrphy_maskwritel(reg_val, reg_mask, phy_base + reg_addr);
writel(tmp, phy_base + reg);
}
static void ddrphy_shift(void __iomem *phy_base, enum dram_board board, int ch)
static void ddrphy_set_dll_recalib(void __iomem *phy_base, int dly_step)
{
u32 dx, bit;
ddrphy_set_delay(phy_base, PHY_DLL_RECALIB,
PHY_DLL_RECALIB_TRIM_MASK, PHY_DLL_RECALIB_INCR,
dly_step);
}
/* 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);
static void ddrphy_set_dll_adrctrl(void __iomem *phy_base, int dly_step)
{
ddrphy_set_delay(phy_base, PHY_DLL_ADRCTRL,
PHY_DLL_ADRCTRL_TRIM_MASK, PHY_DLL_ADRCTRL_INCR,
dly_step);
}
static void ddrphy_set_dll_trim_clk(void __iomem *phy_base, int dly_step)
{
ddrphy_select_lane(phy_base, 0, 0);
ddrphy_set_delay(phy_base, PHY_DLL_TRIM_CLK,
PHY_DLL_TRIM_CLK_MASK, PHY_DLL_TRIM_CLK_INCR,
dly_step);
}
static void ddrphy_init_tail(void __iomem *phy_base, enum dram_board board,
unsigned int freq, int ch)
{
int step;
step = ddrphy_to_dly_step(phy_base, freq, ddrphy_adrctrl[board][ch]);
ddrphy_set_dll_adrctrl(phy_base, step);
step = ddrphy_to_dly_step(phy_base, freq, ddrphy_dlltrimclk[board][ch]);
ddrphy_set_dll_trim_clk(phy_base, step);
step = ddrphy_to_dly_step(phy_base, freq, ddrphy_dllrecalib[board][ch]);
ddrphy_set_dll_recalib(phy_base, step);
}
static void ddrphy_shift_one_dq(void __iomem *phy_base, unsigned int reg,
u32 mask, u32 incr, int shift_val)
{
u32 tmp;
int val;
tmp = readl(phy_base + reg);
val = tmp & mask;
if (!(tmp & incr))
val = -val;
val += shift_val;
tmp &= ~(incr | mask);
tmp |= min_t(u32, abs(val), mask);
if (val >= 0)
tmp |= incr;
writel(tmp, phy_base + reg);
}
static void ddrphy_shift_dq(void __iomem *phy_base, unsigned int reg,
u32 mask, u32 incr, u32 override,
const int *shift_val_array)
{
u32 tmp;
int dx, bit;
tmp = readl(phy_base + reg);
tmp |= override;
writel(tmp, phy_base + reg);
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);
ddrphy_select_lane(phy_base,
(PHY_BITLVL_DLY_WIDTH + 1) * dx,
bit);
/* 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_shift_one_dq(phy_base, reg, mask, incr,
shift_val_array[dx * 8 + bit]);
}
}
ddrphy_set_phy_lane_sel(0, phy_base);
ddrphy_set_bit_sel(0, phy_base);
ddrphy_select_lane(phy_base, 0, 0);
}
static int ddrphy_training(void __iomem *phy_base, enum dram_board board,
@ -493,16 +425,90 @@ static int ddrphy_training(void __iomem *phy_base, enum dram_board board,
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);
/* shift ip_dq trim */
ddrphy_shift_dq(phy_base,
PHY_IP_DQ_DQS_BITWISE_TRIM,
PHY_IP_DQ_DQS_BITWISE_TRIM_MASK,
PHY_IP_DQ_DQS_BITWISE_TRIM_INC,
PHY_IP_DQ_DQS_BITWISE_TRIM_OVERRIDE,
ddrphy_ip_dq_shift_val[board][ch]);
/* shift op_dq trim */
ddrphy_shift_dq(phy_base,
PHY_OP_DQ_DM_DQS_BITWISE_TRIM,
PHY_OP_DQ_DM_DQS_BITWISE_TRIM_MASK,
PHY_OP_DQ_DM_DQS_BITWISE_TRIM_INC,
PHY_OP_DQ_DM_DQS_BITWISE_TRIM_OVERRIDE,
ddrphy_op_dq_shift_val[board][ch]);
return 0;
}
static int umc_dc_init(void __iomem *dc_base, enum dram_freq freq,
/* UMC */
static u32 umc_initctla[DRAM_FREQ_NR] = {0x71016D11};
static u32 umc_initctlb[DRAM_FREQ_NR] = {0x07E390AC};
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][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] = {
/* 256MB 512MB */
{0x0049071D, 0x0078071D}, /* 1866 MHz */
};
static u32 umc_rdatactl_d0[DRAM_FREQ_NR] = {0x00000610};
static u32 umc_rdatactl_d1[DRAM_FREQ_NR] = {0x00000610};
static u32 umc_wdatactl_d0[DRAM_FREQ_NR] = {0x00000204};
static u32 umc_wdatactl_d1[DRAM_FREQ_NR] = {0x00000204};
static u32 umc_odtctl_d0[DRAM_FREQ_NR] = {0x02000002};
static u32 umc_odtctl_d1[DRAM_FREQ_NR] = {0x02000002};
static u32 umc_dataset[DRAM_FREQ_NR] = {0x04000000};
static u32 umc_flowctla[DRAM_FREQ_NR] = {0x0081E01E};
static u32 umc_directbusctrla[DRAM_CH_NR] = {
0x00000000, 0x00000001, 0x00000001
};
static void umc_poll_phy_init_complete(void __iomem *dc_base)
{
/* Wait for PHY Init Complete */
while (!(readl(dc_base + UMC_DFISTCTLC) & BIT(0)))
cpu_relax();
}
static int umc_dc_init(void __iomem *dc_base, unsigned int freq,
unsigned long size, int ch)
{
enum dram_freq freq_e;
enum dram_size size_e;
switch (freq) {
case 1866:
freq_e = DRAM_FREQ_1866M;
break;
default:
pr_err("unsupported DRAM frequency %ud MHz\n", freq);
return -EINVAL;
}
switch (size) {
case 0:
return 0;
@ -521,40 +527,40 @@ static int umc_dc_init(void __iomem *dc_base, enum dram_freq freq,
writel(0x00000001, dc_base + UMC_DFICSOVRRD);
writel(0x00000000, dc_base + UMC_DFITURNOFF);
writel(umc_initctla[freq], dc_base + UMC_INITCTLA);
writel(umc_initctlb[freq], dc_base + UMC_INITCTLB);
writel(umc_initctlc[freq], dc_base + UMC_INITCTLC);
writel(umc_initctla[freq_e], dc_base + UMC_INITCTLA);
writel(umc_initctlb[freq_e], dc_base + UMC_INITCTLB);
writel(umc_initctlc[freq_e], dc_base + UMC_INITCTLC);
writel(umc_drmmr0[freq], dc_base + UMC_DRMMR0);
writel(umc_drmmr0[freq_e], dc_base + UMC_DRMMR0);
writel(0x00000004, dc_base + UMC_DRMMR1);
writel(umc_drmmr2[freq], dc_base + UMC_DRMMR2);
writel(umc_drmmr2[freq_e], dc_base + UMC_DRMMR2);
writel(0x00000000, dc_base + UMC_DRMMR3);
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(umc_memconf0a[freq_e][size_e], dc_base + UMC_MEMCONF0A);
writel(umc_memconf0b[freq_e][size_e], dc_base + UMC_MEMCONF0B);
writel(umc_memconfch[freq_e][size_e], dc_base + UMC_MEMCONFCH);
writel(0x00000008, dc_base + UMC_MEMMAPSET);
writel(umc_cmdctla[freq], dc_base + UMC_CMDCTLA);
writel(umc_cmdctlb[freq], dc_base + UMC_CMDCTLB);
writel(umc_cmdctlc[freq], dc_base + UMC_CMDCTLC);
writel(umc_cmdctle[freq][size_e], dc_base + UMC_CMDCTLE);
writel(umc_cmdctla[freq_e], dc_base + UMC_CMDCTLA);
writel(umc_cmdctlb[freq_e], dc_base + UMC_CMDCTLB);
writel(umc_cmdctlc[freq_e], dc_base + UMC_CMDCTLC);
writel(umc_cmdctle[freq_e][size_e], dc_base + UMC_CMDCTLE);
writel(umc_rdatactl_d0[freq], dc_base + UMC_RDATACTL_D0);
writel(umc_rdatactl_d1[freq], dc_base + UMC_RDATACTL_D1);
writel(umc_rdatactl_d0[freq_e], dc_base + UMC_RDATACTL_D0);
writel(umc_rdatactl_d1[freq_e], dc_base + UMC_RDATACTL_D1);
writel(umc_wdatactl_d0[freq], dc_base + UMC_WDATACTL_D0);
writel(umc_wdatactl_d1[freq], dc_base + UMC_WDATACTL_D1);
writel(umc_odtctl_d0[freq], dc_base + UMC_ODTCTL_D0);
writel(umc_odtctl_d1[freq], dc_base + UMC_ODTCTL_D1);
writel(umc_dataset[freq], dc_base + UMC_DATASET);
writel(umc_wdatactl_d0[freq_e], dc_base + UMC_WDATACTL_D0);
writel(umc_wdatactl_d1[freq_e], dc_base + UMC_WDATACTL_D1);
writel(umc_odtctl_d0[freq_e], dc_base + UMC_ODTCTL_D0);
writel(umc_odtctl_d1[freq_e], dc_base + UMC_ODTCTL_D1);
writel(umc_dataset[freq_e], dc_base + UMC_DATASET);
writel(0x00400020, dc_base + UMC_DCCGCTL);
writel(0x00000003, dc_base + UMC_ACSSETA);
writel(0x00000103, dc_base + UMC_FLOWCTLG);
writel(0x00010200, dc_base + UMC_ACSSETB);
writel(umc_flowctla[freq], dc_base + UMC_FLOWCTLA);
writel(umc_flowctla[freq_e], dc_base + UMC_FLOWCTLA);
writel(0x00004444, dc_base + UMC_FLOWCTLC);
writel(0x00000000, dc_base + UMC_DFICUPDCTLA);
@ -577,7 +583,7 @@ 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, enum dram_board board,
enum dram_board board, unsigned int freq,
unsigned long size, int ch)
{
void __iomem *dc_base = umc_ch_base + 0x00011000;
@ -591,7 +597,11 @@ 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, dc_base, freq, board, ch);
ddrphy_init(phy_base, board, ch);
umc_poll_phy_init_complete(dc_base);
ddrphy_init_tail(phy_base, board, freq, ch);
ret = umc_dc_init(dc_base, freq, size, ch);
if (ret)
@ -624,19 +634,9 @@ int uniphier_ld20_umc_init(const struct uniphier_board_data *bd)
void __iomem *um_base = (void __iomem *)0x5b600000;
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) {
case 1866:
freq = DRAM_FREQ_1866M;
break;
default:
pr_err("unsupported DRAM frequency %d MHz\n", bd->dram_freq);
return -EINVAL;
}
switch (UNIPHIER_BD_BOARD_GET_TYPE(bd->flags)) {
case UNIPHIER_BD_BOARD_LD20_REF:
board = DRAM_BOARD_LD20_REF;
@ -660,8 +660,8 @@ int uniphier_ld20_umc_init(const struct uniphier_board_data *bd)
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, board,
size / (width / 16), ch);
ret = umc_ch_init(umc_ch_base, phy_ch_base, board,
bd->dram_freq, size / (width / 16), ch);
if (ret) {
pr_err("failed to initialize UMC ch%d\n", ch);
return ret;