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-rw-r--r--arch/arm/cpu/armv7/uniphier/Kconfig7
-rw-r--r--arch/arm/cpu/armv7/uniphier/Makefile1
-rw-r--r--arch/arm/cpu/armv7/uniphier/cmd_ddrphy.c229
3 files changed, 237 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/uniphier/Kconfig b/arch/arm/cpu/armv7/uniphier/Kconfig
index 97602990aa..0556e4b350 100644
--- a/arch/arm/cpu/armv7/uniphier/Kconfig
+++ b/arch/arm/cpu/armv7/uniphier/Kconfig
@@ -65,6 +65,13 @@ config DRAM_INIT
bool
default SPL_BUILD
+config CMD_DDRPHY_DUMP
+ bool "Enable dump command of DDR PHY parameters"
+ depends on !SPL_BUILD
+ help
+ The command "ddrphy" shows the resulting parameters of DDR PHY
+ training; it is useful for the evaluation of DDR PHY training.
+
choice
prompt "DDR3 Frequency select"
depends on DRAM_INIT
diff --git a/arch/arm/cpu/armv7/uniphier/Makefile b/arch/arm/cpu/armv7/uniphier/Makefile
index 1d8469608b..05462320b5 100644
--- a/arch/arm/cpu/armv7/uniphier/Makefile
+++ b/arch/arm/cpu/armv7/uniphier/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_BOARD_EARLY_INIT_R) += board_early_init_r.o
obj-$(CONFIG_BOARD_LATE_INIT) += board_late_init.o
obj-$(CONFIG_UNIPHIER_SMP) += smp.o
obj-$(CONFIG_CMD_PINMON) += cmd_pinmon.o
+obj-$(CONFIG_CMD_DDRPHY_DUMP) += cmd_ddrphy.o
obj-y += board_common.o
obj-$(CONFIG_PFC_MICRO_SUPPORT_CARD) += support_card.o
diff --git a/arch/arm/cpu/armv7/uniphier/cmd_ddrphy.c b/arch/arm/cpu/armv7/uniphier/cmd_ddrphy.c
new file mode 100644
index 0000000000..431d9010f1
--- /dev/null
+++ b/arch/arm/cpu/armv7/uniphier/cmd_ddrphy.c
@@ -0,0 +1,229 @@
+/*
+ * Copyright (C) 2014 Panasonic Corporation
+ * Author: Masahiro Yamada <yamada.m@jp.panasonic.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/ddrphy-regs.h>
+
+/* Select either decimal or hexadecimal */
+#if 1
+#define PRINTF_FORMAT "%2d"
+#else
+#define PRINTF_FORMAT "%02x"
+#endif
+/* field separator */
+#define FS " "
+
+static u32 read_bdl(struct ddrphy_datx8 __iomem *dx, int index)
+{
+ return (readl(&dx->bdlr[index / 5]) >> (index % 5 * 6)) & 0x3f;
+}
+
+static void dump_loop(void (*callback)(struct ddrphy_datx8 __iomem *))
+{
+ int ch, p, dx;
+ struct ddrphy __iomem *phy;
+
+ for (ch = 0; ch < NR_DDRCH; ch++) {
+ for (p = 0; p < NR_DDRPHY_PER_CH; p++) {
+ phy = (struct ddrphy __iomem *)DDRPHY_BASE(ch, p);
+
+ for (dx = 0; dx < NR_DATX8_PER_DDRPHY; dx++) {
+ printf("CH%dP%dDX%d:", ch, p, dx);
+ (*callback)(&phy->dx[dx]);
+ printf("\n");
+ }
+ }
+ }
+}
+
+static void __wbdl_dump(struct ddrphy_datx8 __iomem *dx)
+{
+ int i;
+
+ for (i = 0; i < 10; i++)
+ printf(FS PRINTF_FORMAT, read_bdl(dx, i));
+
+ printf(FS "(+" PRINTF_FORMAT ")", readl(&dx->lcdlr[1]) & 0xff);
+}
+
+void wbdl_dump(void)
+{
+ printf("\n--- Write Bit Delay Line ---\n");
+ printf(" DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DM DQS (WDQD)\n");
+
+ dump_loop(&__wbdl_dump);
+}
+
+static void __rbdl_dump(struct ddrphy_datx8 __iomem *dx)
+{
+ int i;
+
+ for (i = 15; i < 24; i++)
+ printf(FS PRINTF_FORMAT, read_bdl(dx, i));
+
+ printf(FS "(+" PRINTF_FORMAT ")", (readl(&dx->lcdlr[1]) >> 8) & 0xff);
+}
+
+void rbdl_dump(void)
+{
+ printf("\n--- Read Bit Delay Line ---\n");
+ printf(" DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DM (RDQSD)\n");
+
+ dump_loop(&__rbdl_dump);
+}
+
+static void __wld_dump(struct ddrphy_datx8 __iomem *dx)
+{
+ int rank;
+ u32 lcdlr0 = readl(&dx->lcdlr[0]);
+ u32 gtr = readl(&dx->gtr);
+
+ for (rank = 0; rank < 4; rank++) {
+ u32 wld = (lcdlr0 >> (8 * rank)) & 0xff; /* Delay */
+ u32 wlsl = (gtr >> (12 + 2 * rank)) & 0x3; /* System Latency */
+
+ printf(FS PRINTF_FORMAT "%sT", wld,
+ wlsl == 0 ? "-1" : wlsl == 1 ? "+0" : "+1");
+ }
+}
+
+void wld_dump(void)
+{
+ printf("\n--- Write Leveling Delay ---\n");
+ printf(" Rank0 Rank1 Rank2 Rank3\n");
+
+ dump_loop(&__wld_dump);
+}
+
+static void __dqsgd_dump(struct ddrphy_datx8 __iomem *dx)
+{
+ int rank;
+ u32 lcdlr2 = readl(&dx->lcdlr[2]);
+ u32 gtr = readl(&dx->gtr);
+
+ for (rank = 0; rank < 4; rank++) {
+ u32 dqsgd = (lcdlr2 >> (8 * rank)) & 0xff; /* Delay */
+ u32 dgsl = (gtr >> (3 * rank)) & 0x7; /* System Latency */
+
+ printf(FS PRINTF_FORMAT "+%dT", dqsgd, dgsl);
+ }
+}
+
+void dqsgd_dump(void)
+{
+ printf("\n--- DQS Gating Delay ---\n");
+ printf(" Rank0 Rank1 Rank2 Rank3\n");
+
+ dump_loop(&__dqsgd_dump);
+}
+
+static void __mdl_dump(struct ddrphy_datx8 __iomem *dx)
+{
+ int i;
+ u32 mdl = readl(&dx->mdlr);
+ for (i = 0; i < 3; i++)
+ printf(FS PRINTF_FORMAT, (mdl >> (8 * i)) & 0xff);
+}
+
+void mdl_dump(void)
+{
+ printf("\n--- Master Delay Line ---\n");
+ printf(" IPRD TPRD MDLD\n");
+
+ dump_loop(&__mdl_dump);
+}
+
+#define REG_DUMP(x) \
+ { u32 __iomem *p = &phy->x; printf("%3d: %-10s: %p : %08x\n", \
+ p - (u32 *)phy, #x, p, readl(p)); }
+
+void reg_dump(void)
+{
+ int ch, p;
+ struct ddrphy __iomem *phy;
+
+ printf("\n--- DDR PHY registers ---\n");
+
+ for (ch = 0; ch < NR_DDRCH; ch++) {
+ for (p = 0; p < NR_DDRPHY_PER_CH; p++) {
+ printf("== Ch%d, PHY%d ==\n", ch, p);
+ printf(" No: Name : Address : Data\n");
+
+ phy = (struct ddrphy __iomem *)DDRPHY_BASE(ch, p);
+
+ REG_DUMP(ridr);
+ REG_DUMP(pir);
+ REG_DUMP(pgcr[0]);
+ REG_DUMP(pgcr[1]);
+ REG_DUMP(pgsr[0]);
+ REG_DUMP(pgsr[1]);
+ REG_DUMP(pllcr);
+ REG_DUMP(ptr[0]);
+ REG_DUMP(ptr[1]);
+ REG_DUMP(ptr[2]);
+ REG_DUMP(ptr[3]);
+ REG_DUMP(ptr[4]);
+ REG_DUMP(acmdlr);
+ REG_DUMP(acbdlr);
+ REG_DUMP(dxccr);
+ REG_DUMP(dsgcr);
+ REG_DUMP(dcr);
+ REG_DUMP(dtpr[0]);
+ REG_DUMP(dtpr[1]);
+ REG_DUMP(dtpr[2]);
+ REG_DUMP(mr0);
+ REG_DUMP(mr1);
+ REG_DUMP(mr2);
+ REG_DUMP(mr3);
+ REG_DUMP(dx[0].gcr);
+ REG_DUMP(dx[0].gtr);
+ REG_DUMP(dx[1].gcr);
+ REG_DUMP(dx[1].gtr);
+ }
+ }
+}
+
+static int do_ddr(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ char *cmd = argv[1];
+
+ if (argc == 1)
+ cmd = "all";
+
+ if (!strcmp(cmd, "wbdl") || !strcmp(cmd, "all"))
+ wbdl_dump();
+
+ if (!strcmp(cmd, "rbdl") || !strcmp(cmd, "all"))
+ rbdl_dump();
+
+ if (!strcmp(cmd, "wld") || !strcmp(cmd, "all"))
+ wld_dump();
+
+ if (!strcmp(cmd, "dqsgd") || !strcmp(cmd, "all"))
+ dqsgd_dump();
+
+ if (!strcmp(cmd, "mdl") || !strcmp(cmd, "all"))
+ mdl_dump();
+
+ if (!strcmp(cmd, "reg") || !strcmp(cmd, "all"))
+ reg_dump();
+
+ return 0;
+}
+
+U_BOOT_CMD(
+ ddr, 2, 1, do_ddr,
+ "UniPhier DDR PHY parameters dumper",
+ "- dump all of the followings\n"
+ "ddr wbdl - dump Write Bit Delay\n"
+ "ddr rbdl - dump Read Bit Delay\n"
+ "ddr wld - dump Write Leveling\n"
+ "ddr dqsgd - dump DQS Gating Delay\n"
+ "ddr mdl - dump Master Delay Line\n"
+ "ddr reg - dump registers\n"
+);
generated by cgit (git 2.34.1) at 2024-12-27 02:14:47 +0000