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rockchip/rk3399: fix sdram training issue 

After write leveling for all ranks, check the
PHY_CLK_WRDQS_SLAVE_DELAY result, if the two ranks in one slice both
meet (0x200-PHY_CLK_WRDQS_SLAVE_DELAY < 0x20) or
(0x200-PHY_CLK_WRDQS_SLAVE > 0x1E0), enable PHY_WRLVL_EARLY_FORCE_ZERO
for this slice, and trigger write leveling again.

BRANCH=none
BUG=chrome-os-partner:54144
TEST=run "stressapptest -M 1024 -s 1000" and pass

Change-Id: I1a0e4e888eb62b5fae5b5e5437a385e8660a246d
Signed-off-by: Martin Roth <martinroth@chromium.org>
Original-Commit-Id: 717cbac97b2045f2934e99859ce405aa3637b1c4
Original-Change-Id: Ic0d7c59404e870a7108ed64bbf3215fcc2d0973e
Original-Signed-off-by: Lin Huang <hl@rock-chips.com>
Original-Signed-off-by: Vadim Bendebury <vbendeb@chromium.org>
Original-Reviewed-on: https://chromium-review.googlesource.com/351825
Reviewed-on: https://review.coreboot.org/15300
Tested-by: build bot (Jenkins)
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Lin Huang 2016-06-16 10:34:04 +08:00 committed by Martin Roth
parent 3fd57d8239
commit 321a6a94f9
1 changed files with 314 additions and 60 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

374
src/soc/rockchip/rk3399/sdram.c
View File

@ -208,11 +208,34 @@ static void set_ds_odt(u32 channel,
struct rk3399_ddr_publ_regs *ddr_publ_regs = rk3399_ddr_publ[channel];
u32 tsel_idle_en, tsel_wr_en, tsel_rd_en;
u32 tsel_idle_select, tsel_wr_select, tsel_rd_select;
u32 tsel_idle_select_p, tsel_wr_select_p, tsel_rd_select_p;
u32 tsel_idle_select_n, tsel_wr_select_n, tsel_rd_select_n;
tsel_rd_select = PHY_DRV_ODT_240;
tsel_wr_select = PHY_DRV_ODT_40;
tsel_idle_select = PHY_DRV_ODT_240;
if (sdram_params->dramtype == LPDDR4) {
tsel_rd_select_p = PHY_DRV_ODT_Hi_Z;
tsel_wr_select_p = PHY_DRV_ODT_40;
tsel_idle_select_p = PHY_DRV_ODT_Hi_Z;
tsel_rd_select_n = PHY_DRV_ODT_240;
tsel_wr_select_n = PHY_DRV_ODT_40;
tsel_idle_select_n = PHY_DRV_ODT_240;
} else if (sdram_params->dramtype == LPDDR3) {
tsel_rd_select_p = PHY_DRV_ODT_240;
tsel_wr_select_p = PHY_DRV_ODT_34_3;
tsel_idle_select_p = PHY_DRV_ODT_240;
tsel_rd_select_n = PHY_DRV_ODT_Hi_Z;
tsel_wr_select_n = PHY_DRV_ODT_34_3;
tsel_idle_select_n = PHY_DRV_ODT_Hi_Z;
} else {
tsel_rd_select_p = PHY_DRV_ODT_240;
tsel_wr_select_p = PHY_DRV_ODT_34_3;
tsel_idle_select_p = PHY_DRV_ODT_240;
tsel_rd_select_n = PHY_DRV_ODT_240;
tsel_wr_select_n = PHY_DRV_ODT_34_3;
tsel_idle_select_n = PHY_DRV_ODT_240;
}
if (sdram_params->odt == 1)
tsel_rd_en = 1;
@ -228,24 +251,28 @@ static void set_ds_odt(u32 channel,
* for write cycles for DQ/DM
*/
clrsetbits_le32(&ddr_publ_regs->denali_phy[6], 0xffffff,
tsel_rd_select | (tsel_rd_select << 0x4) |
(tsel_wr_select << 8) | (tsel_wr_select << 12) |
(tsel_idle_select << 16) | (tsel_idle_select << 20));
tsel_rd_select_n | (tsel_rd_select_p << 0x4) |
(tsel_wr_select_n << 8) | (tsel_wr_select_p << 12) |
(tsel_idle_select_n << 16) |
(tsel_idle_select_p << 20));
clrsetbits_le32(&ddr_publ_regs->denali_phy[134], 0xffffff,
tsel_rd_select | (tsel_rd_select << 0x4) |
(tsel_wr_select << 8) | (tsel_wr_select << 12) |
(tsel_idle_select << 16) | (tsel_idle_select << 20));
tsel_rd_select_n | (tsel_rd_select_p << 0x4) |
(tsel_wr_select_n << 8) | (tsel_wr_select_p << 12) |
(tsel_idle_select_n << 16) |
(tsel_idle_select_p << 20));
clrsetbits_le32(&ddr_publ_regs->denali_phy[262], 0xffffff,
tsel_rd_select | (tsel_rd_select << 0x4) |
(tsel_wr_select << 8) | (tsel_wr_select << 12) |
(tsel_idle_select << 16) | (tsel_idle_select << 20));
tsel_rd_select_n | (tsel_rd_select_p << 0x4) |
(tsel_wr_select_n << 8) | (tsel_wr_select_p << 12) |
(tsel_idle_select_n << 16) |
(tsel_idle_select_p << 20));
clrsetbits_le32(&ddr_publ_regs->denali_phy[390], 0xffffff,
tsel_rd_select | (tsel_rd_select << 0x4) |
(tsel_wr_select << 8) | (tsel_wr_select << 12) |
(tsel_idle_select << 16) | (tsel_idle_select << 20));
tsel_rd_select_n | (tsel_rd_select_p << 0x4) |
(tsel_wr_select_n << 8) | (tsel_wr_select_p << 12) |
(tsel_idle_select_n << 16) |
(tsel_idle_select_p << 20));
/*
* phy_dqs_tsel_select_X 24bits DENALI_PHY_7/135/263/391 offset_0
@ -253,58 +280,62 @@ static void set_ds_odt(u32 channel,
* for write cycles for DQS
*/
clrsetbits_le32(&ddr_publ_regs->denali_phy[7], 0xffffff,
tsel_rd_select | (tsel_rd_select << 0x4) |
(tsel_wr_select << 8) | (tsel_wr_select << 12) |
(tsel_idle_select << 16) | (tsel_idle_select << 20));
tsel_rd_select_n | (tsel_rd_select_p << 0x4) |
(tsel_wr_select_n << 8) | (tsel_wr_select_p << 12) |
(tsel_idle_select_n << 16) |
(tsel_idle_select_p << 20));
clrsetbits_le32(&ddr_publ_regs->denali_phy[135], 0xffffff,
tsel_rd_select | (tsel_rd_select << 0x4) |
(tsel_wr_select << 8) | (tsel_wr_select << 12) |
(tsel_idle_select << 16) | (tsel_idle_select << 20));
tsel_rd_select_n | (tsel_rd_select_p << 0x4) |
(tsel_wr_select_n << 8) | (tsel_wr_select_p << 12) |
(tsel_idle_select_n << 16) |
(tsel_idle_select_p << 20));
clrsetbits_le32(&ddr_publ_regs->denali_phy[263], 0xffffff,
tsel_rd_select | (tsel_rd_select << 0x4) |
(tsel_wr_select << 8) | (tsel_wr_select << 12) |
(tsel_idle_select << 16) | (tsel_idle_select << 20));
tsel_rd_select_n | (tsel_rd_select_p << 0x4) |
(tsel_wr_select_n << 8) | (tsel_wr_select_p << 12) |
(tsel_idle_select_n << 16) |
(tsel_idle_select_p << 20));
clrsetbits_le32(&ddr_publ_regs->denali_phy[391], 0xffffff,
tsel_rd_select | (tsel_rd_select << 0x4) |
(tsel_wr_select << 8) | (tsel_wr_select << 12) |
(tsel_idle_select << 16) | (tsel_idle_select << 20));
tsel_rd_select_n | (tsel_rd_select_p << 0x4) |
(tsel_wr_select_n << 8) | (tsel_wr_select_p << 12) |
(tsel_idle_select_n << 16) |
(tsel_idle_select_p << 20));
/* phy_adr_tsel_select_ 8bits DENALI_PHY_544/672/800 offset_0 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[544], 0xff,
tsel_wr_select | (tsel_wr_select << 0x4));
tsel_wr_select_n | (tsel_wr_select_p << 0x4));
clrsetbits_le32(&ddr_publ_regs->denali_phy[672], 0xff,
tsel_wr_select | (tsel_wr_select << 0x4));
tsel_wr_select_n | (tsel_wr_select_p << 0x4));
clrsetbits_le32(&ddr_publ_regs->denali_phy[800], 0xff,
tsel_wr_select | (tsel_wr_select << 0x4));
tsel_wr_select_n | (tsel_wr_select_p << 0x4));
/* phy_pad_addr_drive 29bits DENALI_PHY_928 offset_0 */
clrsetbits_le32((&ddr_publ_regs->denali_phy[928]), 0xff,
tsel_wr_select | (tsel_wr_select << 0x4));
tsel_wr_select_n | (tsel_wr_select_p << 0x4));
/* phy_pad_rst_drive 8bits DENALI_PHY_937 offset_0 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[937], 0xff,
tsel_wr_select | (tsel_wr_select << 0x4));
tsel_wr_select_n | (tsel_wr_select_p << 0x4));
/* phy_pad_cke_drive 8bits DENALI_PHY_935 offset_0 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[935], 0xff,
tsel_wr_select | (tsel_wr_select << 0x4));
tsel_wr_select_n | (tsel_wr_select_p << 0x4));
/* phy_pad_cs_drive 8bits DENALI_PHY_939 offset_0 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[939], 0xff,
tsel_wr_select | (tsel_wr_select << 0x4));
tsel_wr_select_n | (tsel_wr_select_p << 0x4));
/* phy_pad_clk_drive 8bits DENALI_PHY_929 offset_0 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[929], 0xff,
tsel_wr_select | (tsel_wr_select << 0x4));
tsel_wr_select_n | (tsel_wr_select_p << 0x4));
/* phy_pad_fdbk_drive 23bit DENALI_PHY_924/925 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[924], 0xff,
tsel_wr_select | (tsel_wr_select << 4));
tsel_wr_select_n | (tsel_wr_select_p << 4));
clrsetbits_le32(&ddr_publ_regs->denali_phy[925], 0xff,
tsel_rd_select | (tsel_rd_select << 4));
tsel_rd_select_n | (tsel_rd_select_p << 4));
/* phy_dq_tsel_enable_X 3bits DENALI_PHY_5/133/261/389 offset_16 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[5], 0x7 << 16,
@ -360,6 +391,112 @@ static void set_ds_odt(u32 channel,
0x1 << 17, tsel_wr_en << 17);
}
static void phy_io_config(u32 channel,
const struct rk3399_sdram_params *sdram_params)
{
struct rk3399_ddr_publ_regs *ddr_publ_regs = rk3399_ddr_publ[channel];
u32 vref_mode, vref_value;
u32 mode_sel = 0;
u32 speed;
/* vref setting */
if (sdram_params->dramtype == LPDDR4)
vref_mode = 0x6;
else if (sdram_params->dramtype == LPDDR3)
vref_mode = 0x2;
else if (sdram_params->dramtype == DDR3)
vref_mode = 0x1;
else
die("Halting: Unknown DRAM type.\n");
vref_value = 0x1f;
/* PHY_913 PHY_PAD_VREF_CTRL_DQ_0 12bits offset_8 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[913],
0xfff << 8, ((vref_mode << 9) | (0x1 << 8) | vref_value) << 8);
/* PHY_914 PHY_PAD_VREF_CTRL_DQ_1 12bits offset_0 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[914],
0xfff, ((vref_mode << 9) | (0x1 << 8) | vref_value));
/* PHY_914 PHY_PAD_VREF_CTRL_DQ_2 12bits offset_16 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[914],
0xfff << 16, ((vref_mode << 9) | (0x1 << 8) | vref_value) << 16);
/* PHY_915 PHY_PAD_VREF_CTRL_DQ_3 12bits offset_0 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[915],
0xfff, ((vref_mode << 9) | (0x1 << 8) | vref_value));
/* PHY_915 PHY_PAD_VREF_CTRL_AC 12bits offset_16 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[915],
0xfff << 16, ((vref_mode << 9) | (0x1 << 8) | vref_value) << 16);
/* mode setting */
if (sdram_params->dramtype == LPDDR4)
mode_sel = 0x6;
else if (sdram_params->dramtype == LPDDR3)
mode_sel = 0x0;
else if (sdram_params->dramtype == DDR3)
/* DDR3L */
mode_sel = 0x1;
/* PHY_924 PHY_PAD_FDBK_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[924],
0x7 << 15, mode_sel << 15);
/* PHY_926 PHY_PAD_DATA_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[926],
0x7 << 6, mode_sel << 6);
/* PHY_927 PHY_PAD_DQS_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[926],
0x7 << 6, mode_sel << 6);
/* PHY_928 PHY_PAD_ADDR_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[928],
0x7 << 14, mode_sel << 14);
/* PHY_929 PHY_PAD_CLK_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[929],
0x7 << 14, mode_sel << 14);
/* PHY_935 PHY_PAD_CKE_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[935],
0x7 << 14, mode_sel << 14);
/* PHY_937 PHY_PAD_RST_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[937],
0x7 << 14, mode_sel << 14);
/* PHY_939 PHY_PAD_CS_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[939],
0x7 << 14, mode_sel << 14);
/* SPEED */
if (sdram_params->ddr_freq < 400 * MHz)
speed = 0x0;
else if (sdram_params->ddr_freq < 800 * MHz)
speed = 0x1;
else if (sdram_params->ddr_freq < 1200 * MHz)
speed = 0x2;
else
die("Halting: Unknown DRAM speed.\n");
/* PHY_924 PHY_PAD_FDBK_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[924],
0x3 << 21, speed << 21);
/* PHY_926 PHY_PAD_DATA_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[926],
0x3 << 9, speed << 9);
/* PHY_927 PHY_PAD_DQS_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[926],
0x3 << 9, speed << 9);
/* PHY_928 PHY_PAD_ADDR_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[928],
0x3 << 17, speed << 17);
/* PHY_929 PHY_PAD_CLK_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[929],
0x3 << 17, speed << 17);
/* PHY_935 PHY_PAD_CKE_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[935],
0x3 << 17, speed << 17);
/* PHY_937 PHY_PAD_RST_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[937],
0x3 << 17, speed << 17);
/* PHY_939 PHY_PAD_CS_DRIVE */
clrsetbits_le32(&ddr_publ_regs->denali_phy[939],
0x3 << 17, speed << 17);
}
static void pctl_cfg(u32 channel,
const struct rk3399_sdram_params *sdram_params)
{
@ -464,6 +601,8 @@ static void pctl_cfg(u32 channel,
clrsetbits_le32(&ddr_publ_regs->denali_phy[467],
0xff << 16, (tmp + 0x10) << 16);
phy_io_config(channel, sdram_params);
/* PHY_DLL_RST_EN */
clrsetbits_le32(&ddr_publ_regs->denali_phy[957],
0x3 << 24, 0x2 << 24);
@ -498,6 +637,119 @@ static void select_per_cs_training_index(u32 channel, u32 rank)
}
}
/*
* After write leveling for all ranks, check the PHY_CLK_WRDQS_SLAVE_DELAY
* result, if the two ranks in one slice both met
* "0x200-PHY_CLK_WRDQS_SLAVE_DELAY < 0x20 or
* 0x200-PHY_CLK_WRDQS_SLAVE > 0x1E0",
* enable PHY_WRLVL_EARLY_FORCE_ZERO for this slice, and trigger write
* leveling again. Else no additional write leveling is required.
*/
static void check_write_leveling_value(u32 channel,
const struct rk3399_sdram_params
*sdram_params)
{
struct rk3399_ddr_pi_regs *ddr_pi_regs = rk3399_ddr_pi[channel];
struct rk3399_ddr_publ_regs *ddr_publ_regs = rk3399_ddr_publ[channel];
u32 i, tmp;
u32 obs_0, obs_1, obs_2, obs_3, obs_err = 0;
u32 wl_value[2][4];
u32 rank = sdram_params->ch[channel].rank;
for (i = 0; i < rank; i++) {
/* PHY_8/136/264/392 phy_per_cs_training_index_X 1bit offset_24 */
clrsetbits_le32(&ddr_publ_regs->denali_phy[8], 0x1 << 24,
i << 24);
clrsetbits_le32(&ddr_publ_regs->denali_phy[136], 0x1 << 24,
i << 24);
clrsetbits_le32(&ddr_publ_regs->denali_phy[264], 0x1 << 24,
i << 24);
clrsetbits_le32(&ddr_publ_regs->denali_phy[392], 0x1 << 24,
i << 24);
wl_value[i][0] = (read32(&ddr_publ_regs->denali_phy[63]) >>
16) & 0x3ff;
wl_value[i][1] = (read32(&ddr_publ_regs->denali_phy[191]) >>
16) & 0x3ff;
wl_value[i][2] = (read32(&ddr_publ_regs->denali_phy[319]) >>
16) & 0x3ff;
wl_value[i][3] = (read32(&ddr_publ_regs->denali_phy[447]) >>
16) & 0x3ff;
}
for (i = 0; i < 4; i++) {
if (((wl_value[0][i] > 0x1E0) || (wl_value[0][i] < 0x20)) &&
((wl_value[1][i] > 0x1E0) || (wl_value[1][i] < 0x20))) {
switch (i) {
case 0:
setbits_le32(&ddr_publ_regs->denali_phy[79],
0x1 << 16);
break;
case 1:
setbits_le32(&ddr_publ_regs->denali_phy[207],
0x1 << 16);
break;
case 2:
setbits_le32(&ddr_publ_regs->denali_phy[335],
0x1 << 16);
break;
case 3:
setbits_le32(&ddr_publ_regs->denali_phy[463],
0x1 << 16);
break;
default:
break;
}
}
}
for (i = 0; i < rank; i++) {
/* FIXME: denali_phy[463] value wrong if miss this delay */
udelay(100);
/* PI_60 PI_WRLVL_EN:RW:8:2 */
clrsetbits_le32(&ddr_pi_regs->denali_pi[60],
0x3 << 8,
0x2 << 8);
/* PI_59 PI_WRLVL_REQ:WR:8:1,PI_WRLVL_CS:RW:16:2 */
clrsetbits_le32(&ddr_pi_regs->denali_pi[59],
(0x1 << 8) | (0x3 << 16),
(0x1 << 8) | (i << 16));
select_per_cs_training_index(channel, i);
while (1) {
/* PI_174 PI_INT_STATUS:RD:8:25 */
tmp = read32(&ddr_pi_regs->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 = read32(&ddr_publ_regs->denali_phy[40]);
obs_1 = read32(&ddr_publ_regs->denali_phy[168]);
obs_2 = read32(&ddr_publ_regs->denali_phy[296]);
obs_3 = read32(&ddr_publ_regs->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))
printk(BIOS_DEBUG,
"check_write_leveling_value error!!!\n");
}
/* clear interrupt,PI_175 PI_INT_ACK:WR:0:17 */
write32((&ddr_pi_regs->denali_pi[175]), 0x00003f7c);
}
}
static int data_training(u32 channel,
const struct rk3399_sdram_params *sdram_params,
u32 training_flag)
@ -518,21 +770,17 @@ static int data_training(u32 channel,
PI_READ_LEVELING |
PI_WDQ_LEVELING;
} else if (sdram_params->dramtype == LPDDR3) {
training_flag = PI_READ_GATE_TRAINING;
training_flag = PI_CA_TRAINING | PI_WRITE_LEVELING |
PI_READ_GATE_TRAINING |
PI_READ_LEVELING;
} else if (sdram_params->dramtype == DDR3) {
training_flag = PI_WRITE_LEVELING |
training_flag = PI_WRITE_LEVELING |
PI_READ_GATE_TRAINING |
PI_READ_LEVELING;
}
}
/* PI_58 PI_16BIT_DRAM_CONNECT:RW_D:8:1 */
if (sdram_params->ch[channel].bw == 1)
setbits_le32(&ddr_pi_regs->denali_pi[58], 0x1 << 8);
else
clrbits_le32(&ddr_pi_regs->denali_pi[58], 0x1 << 8);
/* ca tarining(LPDDR4,LPDDR3 support) */
/* ca training(LPDDR4,LPDDR3 support) */
if ((training_flag & PI_CA_TRAINING) == PI_CA_TRAINING) {
for (i = 0; i < rank; i++) {
/* PI_100 PI_CALVL_EN:RW:8:2 */
@ -543,7 +791,8 @@ static int data_training(u32 channel,
clrsetbits_le32(&ddr_pi_regs->denali_pi[92],
(0x1 << 16) | (0x3 << 24),
(0x1 << 16) | (i << 24));
select_per_cs_training_index(channel, rank);
select_per_cs_training_index(channel, i);
while (1) {
/* PI_174 PI_INT_STATUS:RD:8:18 */
tmp = read32(&ddr_pi_regs->denali_pi[174]) >> 8;
@ -581,17 +830,16 @@ static int data_training(u32 channel,
clrsetbits_le32(&ddr_pi_regs->denali_pi[59],
(0x1 << 8) | (0x3 << 16),
(0x1 << 8) | (i << 16));
select_per_cs_training_index(channel, rank);
while (1) {
/* PI_174 PI_INT_STATUS:RD:8:18 */
select_per_cs_training_index(channel, i);
while (1) {
/*PI_174 PI_INT_STATUS:RD:8:18*/
tmp = read32(&ddr_pi_regs->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
* 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 = read32(&ddr_publ_regs->denali_phy[40]);
obs_1 = read32(&ddr_publ_regs->denali_phy[168]);
@ -605,9 +853,12 @@ static int data_training(u32 channel,
if ((((tmp >> 10) & 0x1) == 0x1) &&
(((tmp >> 13) & 0x1) == 0x1) &&
(((tmp >> 4) & 0x1) == 0x0) &&
(obs_err == 0))
(obs_err == 0)) {
if ((rank == 2) && (i == 1))
check_write_leveling_value
(channel, sdram_params);
break;
else if ((((tmp >> 4) & 0x1) == 0x1) ||
} else if ((((tmp >> 4) & 0x1) == 0x1) ||
(obs_err == 1))
return -1;
}
@ -628,7 +879,8 @@ static int data_training(u32 channel,
clrsetbits_le32(&ddr_pi_regs->denali_pi[74],
(0x1 << 16) | (0x3 << 24),
(0x1 << 16) | (i << 24));
select_per_cs_training_index(channel, rank);
select_per_cs_training_index(channel, i);
while (1) {
/* PI_174 PI_INT_STATUS:RD:8:18 */
tmp = read32(&ddr_pi_regs->denali_pi[174]) >> 8;
@ -670,7 +922,8 @@ static int data_training(u32 channel,
clrsetbits_le32(&ddr_pi_regs->denali_pi[74],
(0x1 << 8) | (0x3 << 24),
(0x1 << 8) | (i << 24));
select_per_cs_training_index(channel, rank);
select_per_cs_training_index(channel, i);
while (1) {
/* PI_174 PI_INT_STATUS:RD:8:18 */
tmp = read32(&ddr_pi_regs->denali_pi[174]) >> 8;
@ -704,7 +957,8 @@ static int data_training(u32 channel,
clrsetbits_le32(&ddr_pi_regs->denali_pi[121],
(0x1 << 8) | (0x3 << 16),
(0x1 << 8) | (i << 16));
select_per_cs_training_index(channel, rank);
select_per_cs_training_index(channel, i);
while (1) {
/* PI_174 PI_INT_STATUS:RD:8:18 */
tmp = read32(&ddr_pi_regs->denali_pi[174]) >> 8;