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-rw-r--r--drivers/ddr/fsl/ctrl_regs.c55
-rw-r--r--drivers/ddr/fsl/fsl_ddr_gen4.c44
-rw-r--r--drivers/ddr/fsl/options.c15
3 files changed, 102 insertions, 12 deletions
diff --git a/drivers/ddr/fsl/ctrl_regs.c b/drivers/ddr/fsl/ctrl_regs.c
index 0bfcd3413c6..9073917914e 100644
--- a/drivers/ddr/fsl/ctrl_regs.c
+++ b/drivers/ddr/fsl/ctrl_regs.c
@@ -895,11 +895,15 @@ static void set_ddr_sdram_cfg_2(const unsigned int ctrl_num,
slow = get_ddr_freq(ctrl_num) < 1249000000;
#endif
- if (popts->registered_dimm_en) {
+ if (popts->registered_dimm_en)
rcw_en = 1;
- ap_en = popts->ap_en;
- } else {
+
+ /* DDR4 can have address parity for UDIMM and discrete */
+ if ((CONFIG_FSL_SDRAM_TYPE != SDRAM_TYPE_DDR4) &&
+ (!popts->registered_dimm_en)) {
ap_en = 0;
+ } else {
+ ap_en = popts->ap_en;
}
x4_en = popts->x4_en ? 1 : 0;
@@ -1135,6 +1139,7 @@ static void set_ddr_sdram_mode_9(fsl_ddr_cfg_regs_t *ddr,
unsigned short esdmode5; /* Extended SDRAM mode 5 */
int rtt_park = 0;
bool four_cs = false;
+ const unsigned int mclk_ps = get_memory_clk_period_ps(0);
#if CONFIG_CHIP_SELECTS_PER_CTRL == 4
if ((ddr->cs[0].config & SDRAM_CS_CONFIG_EN) &&
@@ -1150,6 +1155,19 @@ static void set_ddr_sdram_mode_9(fsl_ddr_cfg_regs_t *ddr,
esdmode5 = 0x00000400; /* Data mask enabled */
}
+ /* set command/address parity latency */
+ if (ddr->ddr_sdram_cfg_2 & SDRAM_CFG2_AP_EN) {
+ if (mclk_ps >= 935) {
+ /* for DDR4-1600/1866/2133 */
+ esdmode5 |= DDR_MR5_CA_PARITY_LAT_4_CLK;
+ } else if (mclk_ps >= 833) {
+ /* for DDR4-2400 */
+ esdmode5 |= DDR_MR5_CA_PARITY_LAT_5_CLK;
+ } else {
+ printf("parity: mclk_ps = %d not supported\n", mclk_ps);
+ }
+ }
+
ddr->ddr_sdram_mode_9 = (0
| ((esdmode4 & 0xffff) << 16)
| ((esdmode5 & 0xffff) << 0)
@@ -1170,6 +1188,20 @@ static void set_ddr_sdram_mode_9(fsl_ddr_cfg_regs_t *ddr,
} else {
esdmode5 = 0x00000400;
}
+
+ if (ddr->ddr_sdram_cfg_2 & SDRAM_CFG2_AP_EN) {
+ if (mclk_ps >= 935) {
+ /* for DDR4-1600/1866/2133 */
+ esdmode5 |= DDR_MR5_CA_PARITY_LAT_4_CLK;
+ } else if (mclk_ps >= 833) {
+ /* for DDR4-2400 */
+ esdmode5 |= DDR_MR5_CA_PARITY_LAT_5_CLK;
+ } else {
+ printf("parity: mclk_ps = %d not supported\n",
+ mclk_ps);
+ }
+ }
+
switch (i) {
case 1:
ddr->ddr_sdram_mode_11 = (0
@@ -1925,12 +1957,25 @@ static void set_timing_cfg_7(const unsigned int ctrl_num,
const common_timing_params_t *common_dimm)
{
unsigned int txpr, tcksre, tcksrx;
- unsigned int cke_rst, cksre, cksrx, par_lat, cs_to_cmd;
+ unsigned int cke_rst, cksre, cksrx, par_lat = 0, cs_to_cmd;
+ const unsigned int mclk_ps = get_memory_clk_period_ps(ctrl_num);
txpr = max(5U, picos_to_mclk(ctrl_num, common_dimm->trfc1_ps + 10000));
tcksre = max(5U, picos_to_mclk(ctrl_num, 10000));
tcksrx = max(5U, picos_to_mclk(ctrl_num, 10000));
- par_lat = 0;
+
+ if (ddr->ddr_sdram_cfg_2 & SDRAM_CFG2_AP_EN) {
+ if (mclk_ps >= 935) {
+ /* parity latency 4 clocks in case of 1600/1866/2133 */
+ par_lat = 4;
+ } else if (mclk_ps >= 833) {
+ /* parity latency 5 clocks for DDR4-2400 */
+ par_lat = 5;
+ } else {
+ printf("parity: mclk_ps = %d not supported\n", mclk_ps);
+ }
+ }
+
cs_to_cmd = 0;
if (txpr <= 200)
diff --git a/drivers/ddr/fsl/fsl_ddr_gen4.c b/drivers/ddr/fsl/fsl_ddr_gen4.c
index 6f76980d319..608810d4e29 100644
--- a/drivers/ddr/fsl/fsl_ddr_gen4.c
+++ b/drivers/ddr/fsl/fsl_ddr_gen4.c
@@ -12,7 +12,8 @@
#include <fsl_ddr.h>
#include <fsl_errata.h>
-#ifdef CONFIG_SYS_FSL_ERRATUM_A008511
+#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;
@@ -24,9 +25,9 @@ static void set_wait_for_bits_clear(void *ptr, u32 value, u32 bits)
timeout--;
}
if (timeout <= 0)
- puts("Error: A007865 wait for clear timeout.\n");
+ puts("Error: wait for clear timeout.\n");
}
-#endif /* CONFIG_SYS_FSL_ERRATUM_A008511 */
+#endif
#if (CONFIG_CHIP_SELECTS_PER_CTRL > 4)
#error Invalid setting for CONFIG_CHIP_SELECTS_PER_CTRL
@@ -201,7 +202,18 @@ void fsl_ddr_set_memctl_regs(const fsl_ddr_cfg_regs_t *regs,
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 & SDRAM_CFG_RD_EN) { /* for RDIMM */
+ ddr_out32(&ddr->ddr_sdram_rcw_2,
+ regs->ddr_sdram_rcw_2 & ~0x0f000000);
+ }
+
+ 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 < 32; i++) {
if (regs->debug[i]) {
@@ -297,7 +309,8 @@ step2:
mb();
isb();
-#ifdef CONFIG_SYS_FSL_ERRATUM_A008511
+#if defined(CONFIG_SYS_FSL_ERRATUM_A008511) || \
+ defined(CONFIG_SYS_FSL_ERRATUM_A009803)
/* Part 2 of 2 */
/* This erraum only applies to verion 5.2.0 */
if (fsl_ddr_get_version(ctrl_num) == 0x50200) {
@@ -313,6 +326,7 @@ step2:
ctrl_num, ddr_in32(&ddr->debug[1]));
}
+#ifdef CONFIG_SYS_FSL_ERRATUM_A008511
/* The vref setting sequence is different for range 2 */
if (regs->ddr_cdr2 & DDR_CDR2_VREF_RANGE_2)
vref_seq = vref_seq2;
@@ -359,9 +373,29 @@ step2:
}
/* Restore D_INIT */
ddr_out32(&ddr->sdram_cfg_2, regs->ddr_sdram_cfg_2);
- }
#endif /* CONFIG_SYS_FSL_ERRATUM_A008511 */
+#ifdef CONFIG_SYS_FSL_ERRATUM_A009803
+ /* 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
+ }
+#endif
+
total_gb_size_per_controller = 0;
for (i = 0; i < CONFIG_CHIP_SELECTS_PER_CTRL; i++) {
if (!(regs->cs[i].config & 0x80000000))
diff --git a/drivers/ddr/fsl/options.c b/drivers/ddr/fsl/options.c
index 791d6441010..d0075ff1fd2 100644
--- a/drivers/ddr/fsl/options.c
+++ b/drivers/ddr/fsl/options.c
@@ -1002,8 +1002,19 @@ unsigned int populate_memctl_options(const common_timing_params_t *common_dimm,
popts->twot_en = 0;
popts->threet_en = 0;
- /* for RDIMM, address parity enable */
- popts->ap_en = 1;
+ /* for RDIMM and DDR4 UDIMM/discrete memory, address parity enable */
+ if (popts->registered_dimm_en)
+ popts->ap_en = 1; /* 0 = disable, 1 = enable */
+ else
+ popts->ap_en = 0; /* disabled for DDR4 UDIMM/discrete default */
+
+ if (hwconfig_sub_f("fsl_ddr", "parity", buf)) {
+ if (hwconfig_subarg_cmp_f("fsl_ddr", "parity", "on", buf)) {
+ if (popts->registered_dimm_en ||
+ (CONFIG_FSL_SDRAM_TYPE == SDRAM_TYPE_DDR4))
+ popts->ap_en = 1;
+ }
+ }
/*
* BSTTOPRE precharge interval
generated by cgit v1.2.3 (git 2.0.4) at 2025-10-31 11:15:48 +0000