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/*
* Copyright (C) 2014-2015 Masahiro Yamada <yamada.masahiro@socionext.com>
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <linux/io.h>
#include "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);
}
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(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);
}
static 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");
}
}
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(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);
}
}
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(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);
}
static 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)); }
static 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"
);
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