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Commit 6eeb6241 authored by Masahiro Yamada's avatar Masahiro Yamada
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ARM: uniphier: update DRAM init code for LD11 SoC 


Introduce run-time DDR PHY training.

Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
parent 5f49845e
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arch/arm/mach-uniphier/dram/ddrphy-regs.h
+ 2
− 0
View file @ 6eeb6241
......@@ -34,6 +34,7 @@
#define PHY_PIR_INITBYP BIT(31) /* Initialization Bypass */
#define PHY_PGCR0 (0x002 << PHY_REG_SHIFT)
#define PHY_PGCR1 (0x003 << PHY_REG_SHIFT)
#define PHY_PGCR1_INHVT BIT(26) /* VT Calculation Inhibit */
#define PHY_PGSR0 (0x004 << PHY_REG_SHIFT)
#define PHY_PGSR0_IDONE BIT(0) /* Initialization Done */
#define PHY_PGSR0_PLDONE BIT(1) /* PLL Lock Done */
......@@ -58,6 +59,7 @@
#define PHY_PGSR0_DTERR_SHIFT 28 /* Data Training Error Status*/
#define PHY_PGSR0_DTERR (7 << (PHY_PGSR0_DTERR_SHIFT))
#define PHY_PGSR1 (0x005 << PHY_REG_SHIFT)
#define PHY_PGSR1_VTSTOP BIT(30) /* VT Stop (v3-) */
#define PHY_PLLCR (0x006 << PHY_REG_SHIFT)
#define PHY_PTR0 (0x007 << PHY_REG_SHIFT)
#define PHY_PTR1 (0x008 << PHY_REG_SHIFT)
......
arch/arm/mach-uniphier/dram/umc-ld11.c
+ 389
− 23
View file @ 6eeb6241
......@@ -8,11 +8,13 @@
#include <asm/processor.h>
#include "../init.h"
#include "ddrphy-regs.h"
#include "umc64-regs.h"
#define CONFIG_DDR_FREQ 1866
#define DDR_FREQ 1600
#define DRAM_CH_NR 2
#define RANK_BLOCKS_TR 2
enum dram_freq {
DRAM_FREQ_1600M,
......@@ -25,26 +27,370 @@ enum dram_size {
DRAM_SZ_NR,
};
/* umc */
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] = {0x0078071D};
static u32 umc_cmdctlf[DRAM_FREQ_NR] = {0x02000200};
static u32 umc_cmdctlg[DRAM_FREQ_NR] = {0x08080808};
static u32 umc_rdatactl_d0[DRAM_FREQ_NR] = {0x00000810};
static u32 umc_rdatactl_d1[DRAM_FREQ_NR] = {0x00000810};
static u32 umc_wdatactl_d0[DRAM_FREQ_NR] = {0x00000004};
static u32 umc_wdatactl_d1[DRAM_FREQ_NR] = {0x00000004};
static u32 umc_odtctl_d0[DRAM_FREQ_NR] = {0x02000002};
static u32 umc_odtctl_d1[DRAM_FREQ_NR] = {0x02000002};
static u32 umc_acssetb[DRAM_CH_NR] = {0x00000200, 0x00000203};
static u32 umc_memconfch[DRAM_FREQ_NR] = {0x00023605};
/* PHY */
const int rof_pos_shift_pre[RANK_BLOCKS_TR][2] = { {0, 0}, {0, 0} };
const int rof_neg_shift_pre[RANK_BLOCKS_TR][2] = { {0, 0}, {0, 0} };
const int rof_pos_shift[RANK_BLOCKS_TR][2] = { {-35, -35}, {-35, -35} };
const int rof_neg_shift[RANK_BLOCKS_TR][2] = { {-17, -17}, {-17, -17} };
const int tof_shift[RANK_BLOCKS_TR][2] = { {-50, -50}, {-50, -50} };
/* Register address */
#define PHY_ZQ0CR1 0x00000184
#define PHY_ZQ1CR1 0x00000194
#define PHY_ZQ2CR1 0x000001A4
#define PHY_DX0GCR 0x000001C0
#define PHY_DX0GTR 0x000001F0
#define PHY_DX1GCR 0x00000200
#define PHY_DX1GTR 0x00000230
#define PHY_DX2GCR 0x00000240
#define PHY_DX2GTR 0x00000270
#define PHY_DX3GCR 0x00000280
#define PHY_DX3GTR 0x000002B0
#define PHY_DXMDLR(dx) (0x000001EC + 0x40 * (dx))
#define PHY_DXLCDLR0(dx) (0x000001E0 + 0x40 * (dx))
#define PHY_DXLCDLR1(dx) (0x000001E4 + 0x40 * (dx))
#define PHY_DXLCDLR2(dx) (0x000001E8 + 0x40 * (dx))
#define PHY_DXBDLR1(dx) (0x000001D0 + 0x40 * (dx))
#define PHY_DXBDLR2(dx) (0x000001D4 + 0x40 * (dx))
/* MASK */
#define PHY_ACBD_MASK 0x00FC0000
#define PHY_CK0BD_MASK 0x0000003F
#define PHY_CK1BD_MASK 0x00000FC0
#define PHY_IPRD_MASK 0x000000FF
#define PHY_WLD_MASK(rank) (0xFF << (8 * (rank)))
#define PHY_DQSGD_MASK(rank) (0xFF << (8 * (rank)))
#define PHY_DQSGX_MASK BIT(6)
#define PHY_DSWBD_MASK 0x3F000000 /* bit[29:24] */
#define PHY_DSDQOE_MASK 0x00000FFF
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;
}
/* step of 0.5T for PUB-byte */
static u8 ddrphy_get_mdl(int dx, void __iomem *phy_base)
{
return ddrphy_maskreadl(PHY_IPRD_MASK, phy_base + PHY_DXMDLR(dx));
}
/* Calculating step for PUB-byte */
static int ddrphy_hpstep(int delay, int dx, void __iomem *phy_base)
{
return delay * ddrphy_get_mdl(dx, phy_base) * DDR_FREQ / 1000000;
}
static void ddrphy_vt_ctrl(void __iomem *phy_base, int enable)
{
u32 tmp;
tmp = readl(phy_base + PHY_PGCR1);
if (enable)
tmp &= ~PHY_PGCR1_INHVT;
else
tmp |= PHY_PGCR1_INHVT;
writel(tmp, phy_base + PHY_PGCR1);
if (!enable) {
while (!(readl(phy_base + PHY_PGSR1) & PHY_PGSR1_VTSTOP))
cpu_relax();
}
}
static void ddrphy_set_ckoffset_qoffset(int delay_ckoffset0, int delay_ckoffset1,
int delay_qoffset, int enable,
void __iomem *phy_base)
{
u8 ck_step0, ck_step1; /* ckoffset_step for clock */
u8 q_step; /* qoffset_step for clock */
int dx;
dx = 2; /* use dx2 in sLD11 */
ck_step0 = ddrphy_hpstep(delay_ckoffset0, dx, phy_base); /* CK-Offset */
ck_step1 = ddrphy_hpstep(delay_ckoffset1, dx, phy_base); /* CK-Offset */
q_step = ddrphy_hpstep(delay_qoffset, dx, phy_base); /* Q-Offset */
ddrphy_vt_ctrl(phy_base, 0);
/* Q->[23:18], CK1->[11:6], CK0->bit[5:0] */
if (enable == 1)
ddrphy_maskwritel((q_step << 18) + (ck_step1 << 6) + ck_step0,
PHY_ACBD_MASK | PHY_CK1BD_MASK | PHY_CK0BD_MASK,
phy_base + PHY_ACBDLR);
ddrphy_vt_ctrl(phy_base, 1);
}
static void ddrphy_set_wl_delay_dx(int dx, int r0_delay, int r1_delay,
int enable, void __iomem *phy_base)
{
int rank;
int delay_wl[4];
u32 wl_mask = 0; /* WriteLeveling's Mask */
u32 wl_value = 0; /* WriteLeveling's Value */
delay_wl[0] = r0_delay & 0xfff;
delay_wl[1] = r1_delay & 0xfff;
delay_wl[2] = 0;
delay_wl[3] = 0;
ddrphy_vt_ctrl(phy_base, 0);
for (rank = 0; rank < 4; rank++) {
wl_mask |= PHY_WLD_MASK(rank);
/* WriteLeveling's delay */
wl_value |= ddrphy_hpstep(delay_wl[rank], dx, phy_base) << (8 * rank);
}
if (enable == 1)
ddrphy_maskwritel(wl_value, wl_mask, phy_base + PHY_DXLCDLR0(dx));
ddrphy_vt_ctrl(phy_base, 1);
}
static void ddrphy_set_dqsg_delay_dx(int dx, int r0_delay, int r1_delay,
int enable, void __iomem *phy_base)
{
int rank;
int delay_dqsg[4];
u32 dqsg_mask = 0; /* DQSGating_LCDL_delay's Mask */
u32 dqsg_value = 0; /* DQSGating_LCDL_delay's Value */
delay_dqsg[0] = r0_delay;
delay_dqsg[1] = r1_delay;
delay_dqsg[2] = 0;
delay_dqsg[3] = 0;
ddrphy_vt_ctrl(phy_base, 0);
for (rank = 0; rank < 4; rank++) {
dqsg_mask |= PHY_DQSGD_MASK(rank);
/* DQSGating's delay */
dqsg_value |= ddrphy_hpstep(delay_dqsg[rank], dx, phy_base) << (8 * rank);
}
if (enable == 1)
ddrphy_maskwritel(dqsg_value, dqsg_mask, phy_base + PHY_DXLCDLR2(dx));
ddrphy_vt_ctrl(phy_base, 1);
}
static void ddrphy_set_dswb_delay_dx(int dx, int delay, int enable, void __iomem *phy_base)
{
u8 dswb_step;
ddrphy_vt_ctrl(phy_base, 0);
dswb_step = ddrphy_hpstep(delay, dx, phy_base); /* DQS-BDL's delay */
if (enable == 1)
ddrphy_maskwritel(dswb_step << 24, PHY_DSWBD_MASK, phy_base + PHY_DXBDLR1(dx));
ddrphy_vt_ctrl(phy_base, 1);
}
static void ddrphy_set_oe_delay_dx(int dx, int dqs_delay, int dq_delay,
int enable, void __iomem *phy_base)
{
u8 dqs_oe_step, dq_oe_step;
u32 wdata;
ddrphy_vt_ctrl(phy_base, 0);
/* OE(DQS,DQ) */
dqs_oe_step = ddrphy_hpstep(dqs_delay, dx, phy_base); /* DQS-oe's delay */
dq_oe_step = ddrphy_hpstep(dq_delay, dx, phy_base); /* DQ-oe's delay */
wdata = ((dq_oe_step<<6) + dqs_oe_step) & 0xFFF;
if (enable == 1)
ddrphy_maskwritel(wdata, PHY_DSDQOE_MASK, phy_base + PHY_DXBDLR2(dx));
ddrphy_vt_ctrl(phy_base, 1);
}
static void ddrphy_ext_dqsgt(void __iomem *phy_base)
{
/* Extend DQSGating_window min:+1T max:+1T */
ddrphy_maskwritel(PHY_DQSGX_MASK, PHY_DQSGX_MASK, phy_base + PHY_DSGCR);
}
static void ddrphy_shift_tof_hws(void __iomem *phy_base, const int shift[][2])
{
int dx, block, byte;
u32 lcdlr1, wdqd;
ddrphy_vt_ctrl(phy_base, 0);
for (block = 0; block < RANK_BLOCKS_TR; block++) {
for (byte = 0; byte < 2; byte++) {
dx = block * 2 + byte;
lcdlr1 = readl(phy_base + PHY_DXLCDLR1(dx));
wdqd = lcdlr1 & 0xff;
wdqd = clamp(wdqd + ddrphy_hpstep(shift[block][byte], dx, phy_base),
0U, 0xffU);
lcdlr1 = (lcdlr1 & ~0xff) | wdqd;
writel(lcdlr1, phy_base + PHY_DXLCDLR1(dx));
readl(phy_base + PHY_DXLCDLR1(dx)); /* relax */
}
}
ddrphy_vt_ctrl(phy_base, 1);
}
static void ddrphy_shift_rof_hws(void __iomem *phy_base, const int pos_shift[][2],
const int neg_shift[][2])
{
int dx, block, byte;
u32 lcdlr1, rdqsd, rdqnsd;
ddrphy_vt_ctrl(phy_base, 0);
for (block = 0; block < RANK_BLOCKS_TR; block++) {
for (byte = 0; byte < 2; byte++) {
dx = block * 2 + byte;
lcdlr1 = readl(phy_base + PHY_DXLCDLR1(dx));
/* DQS LCDL RDQNSD->[23:16] RDQSD->[15:8] */
rdqsd = (lcdlr1 >> 8) & 0xff;
rdqnsd = (lcdlr1 >> 16) & 0xff;
rdqsd = clamp(rdqsd + ddrphy_hpstep(pos_shift[block][byte], dx, phy_base),
0U, 0xffU);
rdqnsd = clamp(rdqnsd + ddrphy_hpstep(neg_shift[block][byte], dx, phy_base),
0U, 0xffU);
lcdlr1 = (lcdlr1 & ~(0xffff << 8)) | (rdqsd << 8) | (rdqnsd << 16);
readl(phy_base + PHY_DXLCDLR1(dx)); /* relax */
}
}
ddrphy_vt_ctrl(phy_base, 1);
}
static void ddrphy_boot_run_hws(void __iomem *phy_base)
{
/* Hard Training for DIO */
writel(0x0000f401, phy_base + PHY_PIR);
while (!(readl(phy_base + PHY_PGSR0) & PHY_PGSR0_IDONE))
cpu_relax();
}
static void ddrphy_training(void __iomem *phy_base)
{
/* DIO roffset shift before hard training */
ddrphy_shift_rof_hws(phy_base, rof_pos_shift_pre, rof_neg_shift_pre);
/* Hard Training for each CH */
ddrphy_boot_run_hws(phy_base);
/* DIO toffset shift after training */
ddrphy_shift_tof_hws(phy_base, tof_shift);
/* DIO roffset shift after training */
ddrphy_shift_rof_hws(phy_base, rof_pos_shift, rof_neg_shift);
/* Extend DQSGating window min:+1T max:+1T */
ddrphy_ext_dqsgt(phy_base);
}
static void ddrphy_init(void __iomem *phy_base, enum dram_freq freq)
{
writel(0x40000000, phy_base + PHY_PIR);
writel(0x0300C4F1, phy_base + PHY_PGCR1);
writel(0x0C807D04, phy_base + PHY_PTR0);
writel(0x27100578, phy_base + PHY_PTR1);
writel(0x00083DEF, phy_base + PHY_PTR2);
writel(0x12061A80, phy_base + PHY_PTR3);
writel(0x08027100, phy_base + PHY_PTR4);
writel(0x9D9CBB66, phy_base + PHY_DTPR0);
writel(0x1a878400, phy_base + PHY_DTPR1);
writel(0x50025200, phy_base + PHY_DTPR2);
writel(0xF004641A, phy_base + PHY_DSGCR);
writel(0x0000040B, phy_base + PHY_DCR);
writel(0x00000d71, phy_base + PHY_MR0);
writel(0x00000006, phy_base + PHY_MR1);
writel(0x00000098, phy_base + PHY_MR2);
writel(0x00000000, phy_base + PHY_MR3);
while (!(readl(phy_base + PHY_PGSR0) & PHY_PGSR0_IDONE))
cpu_relax();
writel(0x00000059, phy_base + PHY_ZQ0CR1);
writel(0x00000019, phy_base + PHY_ZQ1CR1);
writel(0x00000019, phy_base + PHY_ZQ2CR1);
writel(0x30FC6C20, phy_base + PHY_PGCR2);
ddrphy_set_ckoffset_qoffset(119, 0, 0, 1, phy_base);
ddrphy_set_wl_delay_dx(0, 220, 220, 1, phy_base);
ddrphy_set_wl_delay_dx(1, 160, 160, 1, phy_base);
ddrphy_set_wl_delay_dx(2, 190, 190, 1, phy_base);
ddrphy_set_wl_delay_dx(3, 150, 150, 1, phy_base);
ddrphy_set_dqsg_delay_dx(0, 750, 750, 1, phy_base);
ddrphy_set_dqsg_delay_dx(1, 750, 750, 1, phy_base);
ddrphy_set_dqsg_delay_dx(2, 750, 750, 1, phy_base);
ddrphy_set_dqsg_delay_dx(3, 750, 750, 1, phy_base);
ddrphy_set_dswb_delay_dx(0, 0, 1, phy_base);
ddrphy_set_dswb_delay_dx(1, 0, 1, phy_base);
ddrphy_set_dswb_delay_dx(2, 0, 1, phy_base);
ddrphy_set_dswb_delay_dx(3, 0, 1, phy_base);
ddrphy_set_oe_delay_dx(0, 0, 0, 1, phy_base);
ddrphy_set_oe_delay_dx(1, 0, 0, 1, phy_base);
ddrphy_set_oe_delay_dx(2, 0, 0, 1, phy_base);
ddrphy_set_oe_delay_dx(3, 0, 0, 1, phy_base);
writel(0x44000E81, phy_base + PHY_DX0GCR);
writel(0x44000E81, phy_base + PHY_DX1GCR);
writel(0x44000E81, phy_base + PHY_DX2GCR);
writel(0x44000E81, phy_base + PHY_DX3GCR);
writel(0x00055002, phy_base + PHY_DX0GTR);
writel(0x00055002, phy_base + PHY_DX1GTR);
writel(0x00055010, phy_base + PHY_DX2GTR);
writel(0x00055010, phy_base + PHY_DX3GTR);
writel(0x930035C7, phy_base + PHY_DTCR);
writel(0x00000003, phy_base + PHY_PIR);
readl(phy_base + PHY_PIR);
while (!(readl(phy_base + PHY_PGSR0) & PHY_PGSR0_IDONE))
cpu_relax();
writel(0x00000181, phy_base + PHY_PIR);
readl(phy_base + PHY_PIR);
while (!(readl(phy_base + PHY_PGSR0) & PHY_PGSR0_IDONE))
cpu_relax();
writel(0x44181884, phy_base + PHY_DXCCR);
writel(0x00000001, phy_base + PHY_GPR1);
}
/* UMC */
static const u32 umc_cmdctla[DRAM_FREQ_NR] = {0x060B0B1C};
static const u32 umc_cmdctlb[DRAM_FREQ_NR] = {0x27201806};
static const u32 umc_cmdctlc[DRAM_FREQ_NR] = {0x00120B04};
static const u32 umc_cmdctle[DRAM_FREQ_NR] = {0x00680607};
static const u32 umc_cmdctlf[DRAM_FREQ_NR] = {0x02000200};
static const u32 umc_cmdctlg[DRAM_FREQ_NR] = {0x08080808};
static const u32 umc_rdatactl[DRAM_FREQ_NR] = {0x00000810};
static const u32 umc_wdatactl[DRAM_FREQ_NR] = {0x00000004};
static const u32 umc_odtctl[DRAM_FREQ_NR] = {0x02000002};
static const u32 umc_acssetb[DRAM_CH_NR] = {0x00000200, 0x00000203};
static const u32 umc_memconfch[DRAM_FREQ_NR] = {0x00023605};
static int umc_dc_init(void __iomem *dc_base, enum dram_freq freq,
unsigned long size, int ch)
{
/* Wait for PHY Init Complete */
writel(umc_cmdctla[freq], dc_base + UMC_CMDCTLA);
writel(umc_cmdctlb[freq], dc_base + UMC_CMDCTLB);
writel(umc_cmdctlc[freq], dc_base + UMC_CMDCTLC);
......@@ -52,14 +398,14 @@ static int umc_dc_init(void __iomem *dc_base, enum dram_freq freq,
writel(umc_cmdctlf[freq], dc_base + UMC_CMDCTLF);
writel(umc_cmdctlg[freq], dc_base + UMC_CMDCTLG);
writel(umc_rdatactl_d0[freq], dc_base + UMC_RDATACTL_D0);
writel(umc_rdatactl_d1[freq], dc_base + UMC_RDATACTL_D1);
writel(umc_rdatactl[freq], dc_base + UMC_RDATACTL_D0);
writel(umc_rdatactl[freq], 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_wdatactl[freq], dc_base + UMC_WDATACTL_D0);
writel(umc_wdatactl[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_odtctl[freq], dc_base + UMC_ODTCTL_D0);
writel(umc_odtctl[freq], dc_base + UMC_ODTCTL_D1);
writel(0x00000003, dc_base + UMC_ACSSETA);
writel(0x00000103, dc_base + UMC_FLOWCTLG);
......@@ -93,6 +439,7 @@ int uniphier_ld11_umc_init(const struct uniphier_board_data *bd)
{
void __iomem *um_base = (void __iomem *)0x5B800000;
void __iomem *umc_ch_base = (void __iomem *)0x5BC00000;
void __iomem *phy_base = (void __iomem *)0x5BC01000;
enum dram_freq freq;
int ch, ret;
......@@ -105,6 +452,24 @@ int uniphier_ld11_umc_init(const struct uniphier_board_data *bd)
return -EINVAL;
}
writel(0x00000101, umc_ch_base + UMC_DIOCTLA);
while (!(readl(phy_base + PHY_PGSR0) & PHY_PGSR0_IDONE))
cpu_relax();
writel(0x00000000, umc_ch_base + UMC_DIOCTLA);
writel(0x00000001, umc_ch_base + UMC_DEBUGC);
writel(0x00000101, umc_ch_base + UMC_DIOCTLA);
writel(0x00000100, umc_ch_base + UMC_INITSET);
while (readl(umc_ch_base + UMC_INITSTAT) & BIT(8))
cpu_relax();
writel(0x00000100, umc_ch_base + 0x00200000 + UMC_INITSET);
while (readl(umc_ch_base + 0x00200000 + UMC_INITSTAT) & BIT(8))
cpu_relax();
ddrphy_init(phy_base, freq);
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;
......@@ -117,6 +482,7 @@ int uniphier_ld11_umc_init(const struct uniphier_board_data *bd)
umc_ch_base += 0x00200000;
}
ddrphy_training(phy_base);
um_init(um_base);
......
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