Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-12-25 04:23:46 +00:00
Code Issues Projects Releases Packages Wiki Activity
u-boot/drivers/ddr/fsl/fsl_ddr_gen4.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

567 lines
17 KiB
C
Raw Blame History

// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2014-2015 Freescale Semiconductor, Inc.
*/
#include <common.h>
#include <asm/io.h>
#include <fsl_ddr_sdram.h>
#include <asm/processor.h>
#include <fsl_immap.h>
#include <fsl_ddr.h>
#include <fsl_errata.h>
#if defined(CONFIG_FSL_LSCH2) || defined(CONFIG_FSL_LSCH3) || \
defined(CONFIG_ARM)
#include <asm/arch/clock.h>
#endif
#define CTLR_INTLV_MASK 0x20000000
#if defined(CONFIG_SYS_FSL_ERRATUM_A008511) | \
defined(CONFIG_SYS_FSL_ERRATUM_A009803)
static void set_wait_for_bits_clear(void *ptr, u32 value, u32 bits)
{
int timeout = 1000;
ddr_out32(ptr, value);
while (ddr_in32(ptr) & bits) {
udelay(100);
timeout--;
}
if (timeout <= 0)
puts("Error: wait for clear timeout.\n");
}
#endif
#if (CONFIG_CHIP_SELECTS_PER_CTRL > 4)
#error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL
#endif
/*
* regs has the to-be-set values for DDR controller registers
* ctrl_num is the DDR controller number
* step: 0 goes through the initialization in one pass
* 1 sets registers and returns before enabling controller
* 2 resumes from step 1 and continues to initialize
* Dividing the initialization to two steps to deassert DDR reset signal
* to comply with JEDEC specs for RDIMMs.
*/
void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
unsigned int ctrl_num, int step)
{
unsigned int i, bus_width;
struct ccsr_ddr __iomem *ddr;
u32 temp32;
u32 total_gb_size_per_controller;
int timeout;
int mod_bnds = 0;
#ifdef CONFIG_SYS_FSL_ERRATUM_A008511
u32 mr6;
u32 vref_seq1[3] = {0x80, 0x96, 0x16}; /* for range 1 */
u32 vref_seq2[3] = {0xc0, 0xf0, 0x70}; /* for range 2 */
u32 *vref_seq = vref_seq1;
#endif
#ifdef CONFIG_FSL_DDR_BIST
u32 mtcr, err_detect, err_sbe;
u32 cs0_bnds, cs1_bnds, cs2_bnds, cs3_bnds, cs0_config;
#endif
#ifdef CONFIG_FSL_DDR_BIST
char buffer[CONFIG_SYS_CBSIZE];
#endif
switch (ctrl_num) {
case 0:
ddr = (void *)CONFIG_SYS_FSL_DDR_ADDR;
break;
#if defined(CONFIG_SYS_FSL_DDR2_ADDR) && (CONFIG_SYS_NUM_DDR_CTLRS > 1)
case 1:
ddr = (void *)CONFIG_SYS_FSL_DDR2_ADDR;
break;
#endif
#if defined(CONFIG_SYS_FSL_DDR3_ADDR) && (CONFIG_SYS_NUM_DDR_CTLRS > 2)
case 2:
ddr = (void *)CONFIG_SYS_FSL_DDR3_ADDR;
break;
#endif
#if defined(CONFIG_SYS_FSL_DDR4_ADDR) && (CONFIG_SYS_NUM_DDR_CTLRS > 3)
case 3:
ddr = (void *)CONFIG_SYS_FSL_DDR4_ADDR;
break;
#endif
default:
printf("%s unexpected ctrl_num = %u\n", __func__, ctrl_num);
return;
}
mod_bnds = regs->cs[0].config & CTLR_INTLV_MASK;
if (step == 2)
goto step2;
/* Set cdr1 first in case 0.9v VDD is enabled for some SoCs*/
ddr_out32(&ddr->ddr_cdr1, regs->ddr_cdr1);
if (regs->ddr_eor)
ddr_out32(&ddr->eor, regs->ddr_eor);
ddr_out32(&ddr->sdram_clk_cntl, regs->ddr_sdram_clk_cntl);
for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
if (i == 0) {
if (mod_bnds) {
debug("modified bnds\n");
ddr_out32(&ddr->cs0_bnds,
(regs->cs[i].bnds & 0xfffefffe) >> 1);
ddr_out32(&ddr->cs0_config,
(regs->cs[i].config &
~CTLR_INTLV_MASK));
} else {
ddr_out32(&ddr->cs0_bnds, regs->cs[i].bnds);
ddr_out32(&ddr->cs0_config, regs->cs[i].config);
}
ddr_out32(&ddr->cs0_config_2, regs->cs[i].config_2);
} else if (i == 1) {
if (mod_bnds) {
ddr_out32(&ddr->cs1_bnds,
(regs->cs[i].bnds & 0xfffefffe) >> 1);
} else {
ddr_out32(&ddr->cs1_bnds, regs->cs[i].bnds);
}
ddr_out32(&ddr->cs1_config, regs->cs[i].config);
ddr_out32(&ddr->cs1_config_2, regs->cs[i].config_2);
} else if (i == 2) {
if (mod_bnds) {
ddr_out32(&ddr->cs2_bnds,
(regs->cs[i].bnds & 0xfffefffe) >> 1);
} else {
ddr_out32(&ddr->cs2_bnds, regs->cs[i].bnds);
}
ddr_out32(&ddr->cs2_config, regs->cs[i].config);
ddr_out32(&ddr->cs2_config_2, regs->cs[i].config_2);
} else if (i == 3) {
if (mod_bnds) {
ddr_out32(&ddr->cs3_bnds,
(regs->cs[i].bnds & 0xfffefffe) >> 1);
} else {
ddr_out32(&ddr->cs3_bnds, regs->cs[i].bnds);
}
ddr_out32(&ddr->cs3_config, regs->cs[i].config);
ddr_out32(&ddr->cs3_config_2, regs->cs[i].config_2);
}
}
ddr_out32(&ddr->timing_cfg_3, regs->timing_cfg_3);
ddr_out32(&ddr->timing_cfg_0, regs->timing_cfg_0);
ddr_out32(&ddr->timing_cfg_1, regs->timing_cfg_1);
ddr_out32(&ddr->timing_cfg_2, regs->timing_cfg_2);
ddr_out32(&ddr->timing_cfg_4, regs->timing_cfg_4);
ddr_out32(&ddr->timing_cfg_5, regs->timing_cfg_5);
ddr_out32(&ddr->timing_cfg_6, regs->timing_cfg_6);
ddr_out32(&ddr->timing_cfg_7, regs->timing_cfg_7);
ddr_out32(&ddr->timing_cfg_8, regs->timing_cfg_8);
ddr_out32(&ddr->timing_cfg_9, regs->timing_cfg_9);
ddr_out32(&ddr->ddr_zq_cntl, regs->ddr_zq_cntl);
ddr_out32(&ddr->dq_map_0, regs->dq_map_0);
ddr_out32(&ddr->dq_map_1, regs->dq_map_1);
ddr_out32(&ddr->dq_map_2, regs->dq_map_2);
ddr_out32(&ddr->dq_map_3, regs->dq_map_3);
ddr_out32(&ddr->sdram_cfg_3, regs->ddr_sdram_cfg_3);
ddr_out32(&ddr->sdram_mode, regs->ddr_sdram_mode);
ddr_out32(&ddr->sdram_mode_2, regs->ddr_sdram_mode_2);
ddr_out32(&ddr->sdram_mode_3, regs->ddr_sdram_mode_3);
ddr_out32(&ddr->sdram_mode_4, regs->ddr_sdram_mode_4);
ddr_out32(&ddr->sdram_mode_5, regs->ddr_sdram_mode_5);
ddr_out32(&ddr->sdram_mode_6, regs->ddr_sdram_mode_6);
ddr_out32(&ddr->sdram_mode_7, regs->ddr_sdram_mode_7);
ddr_out32(&ddr->sdram_mode_8, regs->ddr_sdram_mode_8);
ddr_out32(&ddr->sdram_mode_9, regs->ddr_sdram_mode_9);
ddr_out32(&ddr->sdram_mode_10, regs->ddr_sdram_mode_10);
ddr_out32(&ddr->sdram_mode_11, regs->ddr_sdram_mode_11);
ddr_out32(&ddr->sdram_mode_12, regs->ddr_sdram_mode_12);
ddr_out32(&ddr->sdram_mode_13, regs->ddr_sdram_mode_13);
ddr_out32(&ddr->sdram_mode_14, regs->ddr_sdram_mode_14);
ddr_out32(&ddr->sdram_mode_15, regs->ddr_sdram_mode_15);
ddr_out32(&ddr->sdram_mode_16, regs->ddr_sdram_mode_16);
ddr_out32(&ddr->sdram_md_cntl, regs->ddr_sdram_md_cntl);
#ifdef CONFIG_SYS_FSL_ERRATUM_A009663
ddr_out32(&ddr->sdram_interval,
regs->ddr_sdram_interval & ~SDRAM_INTERVAL_BSTOPRE);
#else
ddr_out32(&ddr->sdram_interval, regs->ddr_sdram_interval);
#endif
ddr_out32(&ddr->sdram_data_init, regs->ddr_data_init);
ddr_out32(&ddr->ddr_wrlvl_cntl, regs->ddr_wrlvl_cntl);
#ifndef CONFIG_SYS_FSL_DDR_EMU
/*
* Skip these two registers if running on emulator
* because emulator doesn't have skew between bytes.
*/
if (regs->ddr_wrlvl_cntl_2)
ddr_out32(&ddr->ddr_wrlvl_cntl_2, regs->ddr_wrlvl_cntl_2);
if (regs->ddr_wrlvl_cntl_3)
ddr_out32(&ddr->ddr_wrlvl_cntl_3, regs->ddr_wrlvl_cntl_3);
#endif
ddr_out32(&ddr->ddr_sr_cntr, regs->ddr_sr_cntr);
ddr_out32(&ddr->ddr_sdram_rcw_1, regs->ddr_sdram_rcw_1);
ddr_out32(&ddr->ddr_sdram_rcw_2, regs->ddr_sdram_rcw_2);
ddr_out32(&ddr->ddr_sdram_rcw_3, regs->ddr_sdram_rcw_3);
ddr_out32(&ddr->ddr_sdram_rcw_4, regs->ddr_sdram_rcw_4);
ddr_out32(&ddr->ddr_sdram_rcw_5, regs->ddr_sdram_rcw_5);
ddr_out32(&ddr->ddr_sdram_rcw_6, regs->ddr_sdram_rcw_6);
#ifdef CONFIG_DEEP_SLEEP
if (is_warm_boot()) {
ddr_out32(&ddr->sdram_cfg_2,
regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT);
ddr_out32(&ddr->init_addr, CONFIG_SYS_SDRAM_BASE);
ddr_out32(&ddr->init_ext_addr, DDR_INIT_ADDR_EXT_UIA);
/* DRAM VRef will not be trained */
ddr_out32(&ddr->ddr_cdr2,
regs->ddr_cdr2 & ~DDR_CDR2_VREF_TRAIN_EN);
} else
#endif
{
ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
ddr_out32(&ddr->init_addr, regs->ddr_init_addr);
ddr_out32(&ddr->init_ext_addr, regs->ddr_init_ext_addr);
ddr_out32(&ddr->ddr_cdr2, regs->ddr_cdr2);
}
#ifdef CONFIG_SYS_FSL_ERRATUM_A009803
/* part 1 of 2 */
if (regs->ddr_sdram_cfg_2 & SDRAM_CFG2_AP_EN) {
if (regs->ddr_sdram_cfg & SDRAM_CFG_RD_EN) { /* for RDIMM */
ddr_out32(&ddr->ddr_sdram_rcw_2,
regs->ddr_sdram_rcw_2 & ~0xf0);
}
ddr_out32(&ddr->err_disable, regs->err_disable |
DDR_ERR_DISABLE_APED);
}
#else
ddr_out32(&ddr->err_disable, regs->err_disable);
#endif
ddr_out32(&ddr->err_int_en, regs->err_int_en);
for (i = 0; i < 64; i++) {
if (regs->debug[i]) {
debug("Write to debug_%d as %08x\n",
i+1, regs->debug[i]);
ddr_out32(&ddr->debug[i], regs->debug[i]);
}
}
#ifdef CONFIG_SYS_FSL_ERRATUM_A008511
/* Part 1 of 2 */
if (fsl_ddr_get_version(ctrl_num) == 0x50200) {
/* Disable DRAM VRef training */
ddr_out32(&ddr->ddr_cdr2,
regs->ddr_cdr2 & ~DDR_CDR2_VREF_TRAIN_EN);
/* disable transmit bit deskew */
temp32 = ddr_in32(&ddr->debug[28]);
temp32 |= DDR_TX_BD_DIS;
ddr_out32(&ddr->debug[28], temp32);
ddr_out32(&ddr->debug[25], 0x9000);
} else if (fsl_ddr_get_version(ctrl_num) == 0x50201) {
/* Output enable forced off */
ddr_out32(&ddr->debug[37], 1 << 31);
/* Enable Vref training */
ddr_out32(&ddr->ddr_cdr2,
regs->ddr_cdr2 | DDR_CDR2_VREF_TRAIN_EN);
} else {
debug("Erratum A008511 doesn't apply.\n");
}
#endif
#if defined(CONFIG_SYS_FSL_ERRATUM_A009803) || \
defined(CONFIG_SYS_FSL_ERRATUM_A008511)
/* Disable D_INIT */
ddr_out32(&ddr->sdram_cfg_2,
regs->ddr_sdram_cfg_2 & ~SDRAM_CFG2_D_INIT);
#endif
#ifdef CONFIG_SYS_FSL_ERRATUM_A009801
temp32 = ddr_in32(&ddr->debug[25]);
temp32 &= ~DDR_CAS_TO_PRE_SUB_MASK;
temp32 |= 9 << DDR_CAS_TO_PRE_SUB_SHIFT;
ddr_out32(&ddr->debug[25], temp32);
#endif
#ifdef CONFIG_SYS_FSL_ERRATUM_A010165
temp32 = get_ddr_freq(ctrl_num) / 1000000;
if ((temp32 > 1900) && (temp32 < 2300)) {
temp32 = ddr_in32(&ddr->debug[28]);
ddr_out32(&ddr->debug[28], temp32 | 0x000a0000);
}
#endif
/*
* For RDIMMs, JEDEC spec requires clocks to be stable before reset is
* deasserted. Clocks start when any chip select is enabled and clock
* control register is set. Because all DDR components are connected to
* one reset signal, this needs to be done in two steps. Step 1 is to
* get the clocks started. Step 2 resumes after reset signal is
* deasserted.
*/
if (step == 1) {
udelay(200);
return;
}
step2:
/* Set, but do not enable the memory */
temp32 = regs->ddr_sdram_cfg;
temp32 &= ~(SDRAM_CFG_MEM_EN);
ddr_out32(&ddr->sdram_cfg, temp32);
/*
* 500 painful micro-seconds must elapse between
* the DDR clock setup and the DDR config enable.
* DDR2 need 200 us, and DDR3 need 500 us from spec,
* we choose the max, that is 500 us for all of case.
*/
udelay(500);
mb();
isb();
#ifdef CONFIG_DEEP_SLEEP
if (is_warm_boot()) {
/* enter self-refresh */
temp32 = ddr_in32(&ddr->sdram_cfg_2);
temp32 |= SDRAM_CFG2_FRC_SR;
ddr_out32(&ddr->sdram_cfg_2, temp32);
/* do board specific memory setup */
board_mem_sleep_setup();
temp32 = (ddr_in32(&ddr->sdram_cfg) | SDRAM_CFG_BI);
} else
#endif
temp32 = ddr_in32(&ddr->sdram_cfg) & ~SDRAM_CFG_BI;
/* Let the controller go */
ddr_out32(&ddr->sdram_cfg, temp32 | SDRAM_CFG_MEM_EN);
mb();
isb();
#if defined(CONFIG_SYS_FSL_ERRATUM_A008511) || \
defined(CONFIG_SYS_FSL_ERRATUM_A009803)
/* Part 2 of 2 */
timeout = 40;
/* Wait for idle. D_INIT needs to be cleared earlier, or timeout */
while (!(ddr_in32(&ddr->debug[1]) & 0x2) &&
(timeout > 0)) {
udelay(1000);
timeout--;
}
if (timeout <= 0) {
printf("Controler %d timeout, debug_2 = %x\n",
ctrl_num, ddr_in32(&ddr->debug[1]));
}
#ifdef CONFIG_SYS_FSL_ERRATUM_A008511
/* This erraum only applies to verion 5.2.0 */
if (fsl_ddr_get_version(ctrl_num) == 0x50200) {
/* The vref setting sequence is different for range 2 */
if (regs->ddr_cdr2 & DDR_CDR2_VREF_RANGE_2)
vref_seq = vref_seq2;
/* Set VREF */
for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
if (!(regs->cs[i].config & SDRAM_CS_CONFIG_EN))
continue;
mr6 = (regs->ddr_sdram_mode_10 >> 16) |
MD_CNTL_MD_EN |
MD_CNTL_CS_SEL(i) |
MD_CNTL_MD_SEL(6) |
0x00200000;
temp32 = mr6 | vref_seq[0];
set_wait_for_bits_clear(&ddr->sdram_md_cntl,
temp32, MD_CNTL_MD_EN);
udelay(1);
debug("MR6 = 0x%08x\n", temp32);
temp32 = mr6 | vref_seq[1];
set_wait_for_bits_clear(&ddr->sdram_md_cntl,
temp32, MD_CNTL_MD_EN);
udelay(1);
debug("MR6 = 0x%08x\n", temp32);
temp32 = mr6 | vref_seq[2];
set_wait_for_bits_clear(&ddr->sdram_md_cntl,
temp32, MD_CNTL_MD_EN);
udelay(1);
debug("MR6 = 0x%08x\n", temp32);
}
ddr_out32(&ddr->sdram_md_cntl, 0);
temp32 = ddr_in32(&ddr->debug[28]);
temp32 &= ~DDR_TX_BD_DIS; /* Enable deskew */
ddr_out32(&ddr->debug[28], temp32);
ddr_out32(&ddr->debug[1], 0x400); /* restart deskew */
/* wait for idle */
timeout = 40;
while (!(ddr_in32(&ddr->debug[1]) & 0x2) &&
(timeout > 0)) {
udelay(1000);
timeout--;
}
if (timeout <= 0) {
printf("Controler %d timeout, debug_2 = %x\n",
ctrl_num, ddr_in32(&ddr->debug[1]));
}
}
#endif /* CONFIG_SYS_FSL_ERRATUM_A008511 */
#ifdef CONFIG_SYS_FSL_ERRATUM_A009803
if (regs->ddr_sdram_cfg_2 & SDRAM_CFG2_AP_EN) {
/* if it's RDIMM */
if (regs->ddr_sdram_cfg & SDRAM_CFG_RD_EN) {
for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
if (!(regs->cs[i].config & SDRAM_CS_CONFIG_EN))
continue;
set_wait_for_bits_clear(&ddr->sdram_md_cntl,
MD_CNTL_MD_EN |
MD_CNTL_CS_SEL(i) |
0x070000ed,
MD_CNTL_MD_EN);
udelay(1);
}
}
ddr_out32(&ddr->err_disable,
regs->err_disable & ~DDR_ERR_DISABLE_APED);
}
#endif
/* Restore D_INIT */
ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
#endif
total_gb_size_per_controller = 0;
for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
if (!(regs->cs[i].config & 0x80000000))
continue;
total_gb_size_per_controller += 1 << (
((regs->cs[i].config >> 14) & 0x3) + 2 +
((regs->cs[i].config >> 8) & 0x7) + 12 +
((regs->cs[i].config >> 4) & 0x3) + 0 +
((regs->cs[i].config >> 0) & 0x7) + 8 +
((regs->ddr_sdram_cfg_3 >> 4) & 0x3) +
3 - ((regs->ddr_sdram_cfg >> 19) & 0x3) -
26); /* minus 26 (count of 64M) */
}
/*
* total memory / bus width = transactions needed
* transactions needed / data rate = seconds
* to add plenty of buffer, double the time
* For example, 2GB on 666MT/s 64-bit bus takes about 402ms
* Let's wait for 800ms
*/
bus_width = 3 - ((ddr_in32(&ddr->sdram_cfg) & SDRAM_CFG_DBW_MASK)
>> SDRAM_CFG_DBW_SHIFT);
timeout = ((total_gb_size_per_controller << (6 - bus_width)) * 100 /
(get_ddr_freq(ctrl_num) >> 20)) << 2;
total_gb_size_per_controller >>= 4; /* shift down to gb size */
debug("total %d GB\n", total_gb_size_per_controller);
debug("Need to wait up to %d * 10ms\n", timeout);
/* Poll DDR_SDRAM_CFG_2[D_INIT] bit until auto-data init is done. */
while ((ddr_in32(&ddr->sdram_cfg_2) & SDRAM_CFG2_D_INIT) &&
(timeout >= 0)) {
udelay(10000); /* throttle polling rate */
timeout--;
}
if (timeout <= 0)
printf("Waiting for D_INIT timeout. Memory may not work.\n");
if (mod_bnds) {
debug("Reset to original bnds\n");
ddr_out32(&ddr->cs0_bnds, regs->cs[0].bnds);
#if (CONFIG_CHIP_SELECTS_PER_CTRL > 1)
ddr_out32(&ddr->cs1_bnds, regs->cs[1].bnds);
#if (CONFIG_CHIP_SELECTS_PER_CTRL > 2)
ddr_out32(&ddr->cs2_bnds, regs->cs[2].bnds);
#if (CONFIG_CHIP_SELECTS_PER_CTRL > 3)
ddr_out32(&ddr->cs3_bnds, regs->cs[3].bnds);
#endif
#endif
#endif
ddr_out32(&ddr->cs0_config, regs->cs[0].config);
}
#ifdef CONFIG_SYS_FSL_ERRATUM_A009663
ddr_out32(&ddr->sdram_interval, regs->ddr_sdram_interval);
#endif
#ifdef CONFIG_DEEP_SLEEP
if (is_warm_boot()) {
/* exit self-refresh */
temp32 = ddr_in32(&ddr->sdram_cfg_2);
temp32 &= ~SDRAM_CFG2_FRC_SR;
ddr_out32(&ddr->sdram_cfg_2, temp32);
}
#endif
#ifdef CONFIG_FSL_DDR_BIST
#define BIST_PATTERN1 0xFFFFFFFF
#define BIST_PATTERN2 0x0
#define BIST_CR 0x80010000
#define BIST_CR_EN 0x80000000
#define BIST_CR_STAT 0x00000001
/* Perform build-in test on memory. Three-way interleaving is not yet
* supported by this code. */
if (env_get_f("ddr_bist", buffer, CONFIG_SYS_CBSIZE) >= 0) {
puts("Running BIST test. This will take a while...");
cs0_config = ddr_in32(&ddr->cs0_config);
cs0_bnds = ddr_in32(&ddr->cs0_bnds);
cs1_bnds = ddr_in32(&ddr->cs1_bnds);
cs2_bnds = ddr_in32(&ddr->cs2_bnds);
cs3_bnds = ddr_in32(&ddr->cs3_bnds);
if (cs0_config & CTLR_INTLV_MASK) {
/* set bnds to non-interleaving */
ddr_out32(&ddr->cs0_bnds, (cs0_bnds & 0xfffefffe) >> 1);
ddr_out32(&ddr->cs1_bnds, (cs1_bnds & 0xfffefffe) >> 1);
ddr_out32(&ddr->cs2_bnds, (cs2_bnds & 0xfffefffe) >> 1);
ddr_out32(&ddr->cs3_bnds, (cs3_bnds & 0xfffefffe) >> 1);
}
ddr_out32(&ddr->mtp1, BIST_PATTERN1);
ddr_out32(&ddr->mtp2, BIST_PATTERN1);
ddr_out32(&ddr->mtp3, BIST_PATTERN2);
ddr_out32(&ddr->mtp4, BIST_PATTERN2);
ddr_out32(&ddr->mtp5, BIST_PATTERN1);
ddr_out32(&ddr->mtp6, BIST_PATTERN1);
ddr_out32(&ddr->mtp7, BIST_PATTERN2);
ddr_out32(&ddr->mtp8, BIST_PATTERN2);
ddr_out32(&ddr->mtp9, BIST_PATTERN1);
ddr_out32(&ddr->mtp10, BIST_PATTERN2);
mtcr = BIST_CR;
ddr_out32(&ddr->mtcr, mtcr);
timeout = 100;
while (timeout > 0 && (mtcr & BIST_CR_EN)) {
mdelay(1000);
timeout--;
mtcr = ddr_in32(&ddr->mtcr);
}
if (timeout <= 0)
puts("Timeout\n");
else
puts("Done\n");
err_detect = ddr_in32(&ddr->err_detect);
err_sbe = ddr_in32(&ddr->err_sbe);
if (mtcr & BIST_CR_STAT) {
printf("BIST test failed on controller %d.\n",
ctrl_num);
}
if (err_detect || (err_sbe & 0xffff)) {
printf("ECC error detected on controller %d.\n",
ctrl_num);
}
if (cs0_config & CTLR_INTLV_MASK) {
/* restore bnds registers */
ddr_out32(&ddr->cs0_bnds, cs0_bnds);
ddr_out32(&ddr->cs1_bnds, cs1_bnds);
ddr_out32(&ddr->cs2_bnds, cs2_bnds);
ddr_out32(&ddr->cs3_bnds, cs3_bnds);
}
}
#endif
}
Reference in a new issue View git blame Copy permalink