--- /dev/null
+/*
+ * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <linux/io.h>
+
+#include "../init.h"
+#include "ddrmphy-regs.h"
+
+/* Select either decimal or hexadecimal */
+#if 1
+#define PRINTF_FORMAT "%2d"
+#else
+#define PRINTF_FORMAT "%02x"
+#endif
+/* field separator */
+#define FS " "
+
+static void __iomem *get_phy_base(int ch)
+{
+ return (void __iomem *)(0x5b830000 + ch * 0x00200000);
+}
+
+static int get_nr_ch(void)
+{
+ const struct uniphier_board_data *bd = uniphier_get_board_param();
+
+ return bd->dram_ch2_width ? 3 : 2;
+}
+
+static int get_nr_datx8(int ch)
+{
+ unsigned int width;
+
+ const struct uniphier_board_data *bd = uniphier_get_board_param();
+
+ switch (ch) {
+ case 0:
+ width = bd->dram_ch0_width;
+ break;
+ case 1:
+ width = bd->dram_ch1_width;
+ break;
+ default:
+ width = bd->dram_ch2_width;
+ break;
+ }
+
+ return width / 8;
+}
+
+static void print_bdl(void __iomem *reg, int n)
+{
+ u32 val = readl(reg);
+ int i;
+
+ for (i = 0; i < n; i++)
+ printf(FS PRINTF_FORMAT, (val >> i * 8) & 0x1f);
+}
+
+static void dump_loop(void (*callback)(void __iomem *))
+{
+ int ch, dx, nr_ch, nr_dx;
+ void __iomem *dx_base;
+
+ nr_ch = get_nr_ch();
+
+ for (ch = 0; ch < nr_ch; ch++) {
+ dx_base = get_phy_base(ch) + DMPHY_DX_BASE;
+ nr_dx = get_nr_datx8(ch);
+
+ for (dx = 0; dx < nr_dx; dx++) {
+ printf("CH%dDX%d:", ch, dx);
+ (*callback)(dx_base);
+ dx_base += DMPHY_DX_STRIDE;
+ printf("\n");
+ }
+ }
+}
+
+static void zq_dump(void)
+{
+ int ch, zq, nr_ch, nr_zq, i;
+ void __iomem *zq_base;
+ u32 dr, pr;
+
+ printf("\n--- Impedance Data ---\n");
+ printf(" ZPD ZPU OPD OPU ZDV ODV\n");
+
+ nr_ch = get_nr_ch();
+
+ for (ch = 0; ch < nr_ch; ch++) {
+ zq_base = get_phy_base(ch) + DMPHY_ZQ_BASE;
+ nr_zq = 3;
+
+ for (zq = 0; zq < nr_zq; zq++) {
+ printf("CH%dZQ%d:", ch, zq);
+
+ dr = readl(zq_base + DMPHY_ZQ_DR);
+ for (i = 0; i < 4; i++) {
+ printf(FS PRINTF_FORMAT, dr & 0x7f);
+ dr >>= 7;
+ }
+
+ pr = readl(zq_base + DMPHY_ZQ_PR);
+ for (i = 0; i < 2; i++) {
+ printf(FS PRINTF_FORMAT, pr & 0xf);
+ pr >>= 4;
+ }
+
+ zq_base += DMPHY_ZQ_STRIDE;
+ printf("\n");
+ }
+ }
+}
+
+static void __wbdl_dump(void __iomem *dx_base)
+{
+ print_bdl(dx_base + DMPHY_DX_BDLR0, 4);
+ print_bdl(dx_base + DMPHY_DX_BDLR1, 4);
+ print_bdl(dx_base + DMPHY_DX_BDLR2, 2);
+
+ printf(FS "(+" PRINTF_FORMAT ")",
+ readl(dx_base + DMPHY_DX_LCDLR1) & 0xff);
+}
+
+static 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(void __iomem *dx_base)
+{
+ print_bdl(dx_base + DMPHY_DX_BDLR3, 4);
+ print_bdl(dx_base + DMPHY_DX_BDLR4, 4);
+ print_bdl(dx_base + DMPHY_DX_BDLR5, 1);
+
+ printf(FS "(+" PRINTF_FORMAT ")",
+ (readl(dx_base + DMPHY_DX_LCDLR1) >> 8) & 0xff);
+
+ printf(FS "(+" PRINTF_FORMAT ")",
+ (readl(dx_base + DMPHY_DX_LCDLR1) >> 16) & 0xff);
+}
+
+static void rbdl_dump(void)
+{
+ printf("\n--- Read Bit Delay Line ---\n");
+ printf(" DQ0 DQ1 DQ2 DQ3 DQ4 DQ5 DQ6 DQ7 DM (RDQSD) (RDQSND)\n");
+
+ dump_loop(&__rbdl_dump);
+}
+
+static void __wld_dump(void __iomem *dx_base)
+{
+ int rank;
+ u32 lcdlr0 = readl(dx_base + DMPHY_DX_LCDLR0);
+ u32 gtr = readl(dx_base + DMPHY_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");
+ }
+}
+
+static void wld_dump(void)
+{
+ printf("\n--- Write Leveling Delay ---\n");
+ printf(" Rank0 Rank1 Rank2 Rank3\n");
+
+ dump_loop(&__wld_dump);
+}
+
+static void __dqsgd_dump(void __iomem *dx_base)
+{
+ int rank;
+ u32 lcdlr2 = readl(dx_base + DMPHY_DX_LCDLR2);
+ u32 gtr = readl(dx_base + DMPHY_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);
+ }
+}
+
+static void dqsgd_dump(void)
+{
+ printf("\n--- DQS Gating Delay ---\n");
+ printf(" Rank0 Rank1 Rank2 Rank3\n");
+
+ dump_loop(&__dqsgd_dump);
+}
+
+static void __mdl_dump(void __iomem *dx_base)
+{
+ int i;
+ u32 mdl = readl(dx_base + DMPHY_DX_MDLR);
+
+ for (i = 0; i < 3; i++)
+ printf(FS PRINTF_FORMAT, (mdl >> (8 * i)) & 0xff);
+}
+
+static void mdl_dump(void)
+{
+ printf("\n--- Master Delay Line ---\n");
+ printf(" IPRD TPRD MDLD\n");
+
+ dump_loop(&__mdl_dump);
+}
+
+#define REG_DUMP(x) \
+ { int ofst = DMPHY_ ## x; void __iomem *reg = phy_base + ofst; \
+ printf("%3d: %-10s: %p : %08x\n", \
+ ofst >> DMPHY_SHIFT, #x, reg, readl(reg)); }
+
+#define DX_REG_DUMP(dx, x) \
+ { int ofst = DMPHY_DX_BASE + DMPHY_DX_STRIDE * (dx) + \
+ DMPHY_DX_## x; \
+ void __iomem *reg = phy_base + ofst; \
+ printf("%3d: DX%d%-7s: %p : %08x\n", \
+ ofst >> DMPHY_SHIFT, (dx), #x, reg, readl(reg)); }
+
+static void reg_dump(void)
+{
+ int ch, dx, nr_ch, nr_dx;
+ void __iomem *phy_base;
+
+ printf("\n--- DDR PHY registers ---\n");
+
+ nr_ch = get_nr_ch();
+
+ for (ch = 0; ch < nr_ch; ch++) {
+ phy_base = get_phy_base(ch);
+ nr_dx = get_nr_datx8(ch);
+
+ printf("== Ch%d ==\n", ch);
+ printf(" No: Name : Address : Data\n");
+
+ REG_DUMP(RIDR);
+ REG_DUMP(PIR);
+ REG_DUMP(PGCR0);
+ REG_DUMP(PGCR1);
+ REG_DUMP(PGCR2);
+ REG_DUMP(PGCR3);
+ REG_DUMP(PGSR0);
+ REG_DUMP(PGSR1);
+ REG_DUMP(PLLCR);
+ REG_DUMP(PTR0);
+ REG_DUMP(PTR1);
+ REG_DUMP(PTR2);
+ REG_DUMP(PTR3);
+ REG_DUMP(PTR4);
+ REG_DUMP(ACMDLR);
+ REG_DUMP(ACBDLR0);
+ REG_DUMP(DXCCR);
+ REG_DUMP(DSGCR);
+ REG_DUMP(DCR);
+ REG_DUMP(DTPR0);
+ REG_DUMP(DTPR1);
+ REG_DUMP(DTPR2);
+ REG_DUMP(DTPR3);
+ REG_DUMP(MR0);
+ REG_DUMP(MR1);
+ REG_DUMP(MR2);
+ REG_DUMP(MR3);
+
+ for (dx = 0; dx < nr_dx; dx++) {
+ DX_REG_DUMP(dx, GCR0);
+ DX_REG_DUMP(dx, GCR1);
+ DX_REG_DUMP(dx, GCR2);
+ DX_REG_DUMP(dx, GCR3);
+ DX_REG_DUMP(dx, GTR);
+ }
+ }
+}
+
+static int do_ddrm(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+ char *cmd = argv[1];
+
+ if (argc == 1)
+ cmd = "all";
+
+ if (!strcmp(cmd, "zq") || !strcmp(cmd, "all"))
+ zq_dump();
+
+ 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(
+ ddrm, 2, 1, do_ddrm,
+ "UniPhier DDR PHY parameters dumper",
+ "- dump all of the followings\n"
+ "ddrm zq - dump Impedance Data\n"
+ "ddrm wbdl - dump Write Bit Delay\n"
+ "ddrm rbdl - dump Read Bit Delay\n"
+ "ddrm wld - dump Write Leveling\n"
+ "ddrm dqsgd - dump DQS Gating Delay\n"
+ "ddrm mdl - dump Master Delay Line\n"
+ "ddrm reg - dump registers\n"
+);
projects / u-boot.git / commitdiff