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stm32mp1: ram: add interactive mode for DDR configuration

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This debug mode is used by CubeMX DDR tuning tools
or manualy for tests during board bring-up.
It is simple console used to change DDR parameters and check
initialization.

Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay 2019-04-10 14:09:27 +02:00 committed by Patrice Chotard
parent 1767ac2d1f
commit 01a7510849
5 changed files with 714 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
common/Makefile
View File

@ -124,6 +124,7 @@ endif
obj-y += cli.o
obj-$(CONFIG_FSL_DDR_INTERACTIVE) += cli_simple.o cli_readline.o
obj-$(CONFIG_STM32MP1_DDR_INTERACTIVE) += cli_simple.o cli_readline.o
obj-$(CONFIG_DFU_OVER_USB) += dfu.o
obj-y += command.o
obj-$(CONFIG_$(SPL_TPL_)LOG) += log.o

19
drivers/ram/stm32mp1/Kconfig
View File

@ -10,3 +10,22 @@ config STM32MP1_DDR
family: support for LPDDR2, LPDDR3 and DDR3
the SDRAM parameters for controleur and phy need to be provided
in device tree (computed by DDR tuning tools)
config STM32MP1_DDR_INTERACTIVE
bool "STM32MP1 DDR driver : interactive support"
depends on STM32MP1_DDR
help
activate interactive support in STM32MP1 DDR controller driver
used for DDR tuning tools
to enter in intercative mode type 'd' during SPL DDR driver
initialisation
config STM32MP1_DDR_INTERACTIVE_FORCE
bool "STM32MP1 DDR driver : force interactive mode"
depends on STM32MP1_DDR_INTERACTIVE
default n
help
force interactive mode in STM32MP1 DDR controller driver
skip the polling of character 'd' in console
useful when SPL is loaded in sysram
directly by programmer

6
drivers/ram/stm32mp1/Makefile
View File

@ -5,3 +5,9 @@
obj-y += stm32mp1_ram.o
obj-y += stm32mp1_ddr.o
obj-$(CONFIG_STM32MP1_DDR_INTERACTIVE) += stm32mp1_interactive.o
ifneq ($(DDR_INTERACTIVE),)
CFLAGS_stm32mp1_interactive.o += -DCONFIG_STM32MP1_DDR_INTERACTIVE_FORCE=y
endif

298
drivers/ram/stm32mp1/stm32mp1_ddr.c
View File

@ -41,6 +41,16 @@ struct reg_desc {
offsetof(struct stm32mp1_ddrphy, x),\
offsetof(struct y, x)}
#define DDR_REG_DYN(x) \
{#x,\
offsetof(struct stm32mp1_ddrctl, x),\
INVALID_OFFSET}
#define DDRPHY_REG_DYN(x) \
{#x,\
offsetof(struct stm32mp1_ddrphy, x),\
INVALID_OFFSET}
/***********************************************************
* PARAMETERS: value get from device tree :
* size / order need to be aligned with binding
@ -179,6 +189,42 @@ static const struct reg_desc ddrphy_cal[DDRPHY_REG_CAL_SIZE] = {
DDRPHY_REG_CAL(dx3dqstr),
};
/**************************************************************
* DYNAMIC REGISTERS: only used for debug purpose (read/modify)
**************************************************************/
#ifdef CONFIG_STM32MP1_DDR_INTERACTIVE
static const struct reg_desc ddr_dyn[] = {
DDR_REG_DYN(stat),
DDR_REG_DYN(init0),
DDR_REG_DYN(dfimisc),
DDR_REG_DYN(dfistat),
DDR_REG_DYN(swctl),
DDR_REG_DYN(swstat),
DDR_REG_DYN(pctrl_0),
DDR_REG_DYN(pctrl_1),
};
#define DDR_REG_DYN_SIZE ARRAY_SIZE(ddr_dyn)
static const struct reg_desc ddrphy_dyn[] = {
DDRPHY_REG_DYN(pir),
DDRPHY_REG_DYN(pgsr),
DDRPHY_REG_DYN(zq0sr0),
DDRPHY_REG_DYN(zq0sr1),
DDRPHY_REG_DYN(dx0gsr0),
DDRPHY_REG_DYN(dx0gsr1),
DDRPHY_REG_DYN(dx1gsr0),
DDRPHY_REG_DYN(dx1gsr1),
DDRPHY_REG_DYN(dx2gsr0),
DDRPHY_REG_DYN(dx2gsr1),
DDRPHY_REG_DYN(dx3gsr0),
DDRPHY_REG_DYN(dx3gsr1),
};
#define DDRPHY_REG_DYN_SIZE ARRAY_SIZE(ddrphy_dyn)
#endif
/*****************************************************************
* REGISTERS ARRAY: used to parse device tree and interactive mode
*****************************************************************/
@ -190,6 +236,13 @@ enum reg_type {
REGPHY_REG,
REGPHY_TIMING,
REGPHY_CAL,
#ifdef CONFIG_STM32MP1_DDR_INTERACTIVE
/* dynamic registers => managed in driver or not changed,
* can be dumped in interactive mode
*/
REG_DYN,
REGPHY_DYN,
#endif
REG_TYPE_NB
};
@ -223,6 +276,13 @@ const struct ddr_reg_info ddr_registers[REG_TYPE_NB] = {
"timing", ddrphy_timing, DDRPHY_REG_TIMING_SIZE, DDRPHY_BASE},
[REGPHY_CAL] = {
"cal", ddrphy_cal, DDRPHY_REG_CAL_SIZE, DDRPHY_BASE},
#ifdef CONFIG_STM32MP1_DDR_INTERACTIVE
[REG_DYN] = {
"dyn", ddr_dyn, DDR_REG_DYN_SIZE, DDR_BASE},
[REGPHY_DYN] = {
"dyn", ddrphy_dyn, DDRPHY_REG_DYN_SIZE, DDRPHY_BASE},
#endif
};
const char *base_name[] = {
@ -263,6 +323,231 @@ static void set_reg(const struct ddr_info *priv,
}
}
#ifdef CONFIG_STM32MP1_DDR_INTERACTIVE
static void stm32mp1_dump_reg_desc(u32 base_addr, const struct reg_desc *desc)
{
unsigned int *ptr;
ptr = (unsigned int *)(base_addr + desc->offset);
printf("%s= 0x%08x\n", desc->name, readl(ptr));
}
static void stm32mp1_dump_param_desc(u32 par_addr, const struct reg_desc *desc)
{
unsigned int *ptr;
ptr = (unsigned int *)(par_addr + desc->par_offset);
printf("%s= 0x%08x\n", desc->name, readl(ptr));
}
static const struct reg_desc *found_reg(const char *name, enum reg_type *type)
{
unsigned int i, j;
const struct reg_desc *desc;
for (i = 0; i < ARRAY_SIZE(ddr_registers); i++) {
desc = ddr_registers[i].desc;
for (j = 0; j < ddr_registers[i].size; j++) {
if (strcmp(name, desc[j].name) == 0) {
*type = i;
return &desc[j];
}
}
}
*type = REG_TYPE_NB;
return NULL;
}
int stm32mp1_dump_reg(const struct ddr_info *priv,
const char *name)
{
unsigned int i, j;
const struct reg_desc *desc;
u32 base_addr;
enum base_type p_base;
enum reg_type type;
const char *p_name;
enum base_type filter = NONE_BASE;
int result = -1;
if (name) {
if (strcmp(name, base_name[DDR_BASE]) == 0)
filter = DDR_BASE;
else if (strcmp(name, base_name[DDRPHY_BASE]) == 0)
filter = DDRPHY_BASE;
}
for (i = 0; i < ARRAY_SIZE(ddr_registers); i++) {
p_base = ddr_registers[i].base;
p_name = ddr_registers[i].name;
if (!name || (filter == p_base || !strcmp(name, p_name))) {
result = 0;
desc = ddr_registers[i].desc;
base_addr = get_base_addr(priv, p_base);
printf("==%s.%s==\n", base_name[p_base], p_name);
for (j = 0; j < ddr_registers[i].size; j++)
stm32mp1_dump_reg_desc(base_addr, &desc[j]);
}
}
if (result) {
desc = found_reg(name, &type);
if (desc) {
p_base = ddr_registers[type].base;
base_addr = get_base_addr(priv, p_base);
stm32mp1_dump_reg_desc(base_addr, desc);
result = 0;
}
}
return result;
}
void stm32mp1_edit_reg(const struct ddr_info *priv,
char *name, char *string)
{
unsigned long *ptr, value;
enum reg_type type;
enum base_type base;
const struct reg_desc *desc;
u32 base_addr;
desc = found_reg(name, &type);
if (!desc) {
printf("%s not found\n", name);
return;
}
if (strict_strtoul(string, 16, &value) < 0) {
printf("invalid value %s\n", string);
return;
}
base = ddr_registers[type].base;
base_addr = get_base_addr(priv, base);
ptr = (unsigned long *)(base_addr + desc->offset);
writel(value, ptr);
printf("%s= 0x%08x\n", desc->name, readl(ptr));
}
static u32 get_par_addr(const struct stm32mp1_ddr_config *config,
enum reg_type type)
{
u32 par_addr = 0x0;
switch (type) {
case REG_REG:
par_addr = (u32)&config->c_reg;
break;
case REG_TIMING:
par_addr = (u32)&config->c_timing;
break;
case REG_PERF:
par_addr = (u32)&config->c_perf;
break;
case REG_MAP:
par_addr = (u32)&config->c_map;
break;
case REGPHY_REG:
par_addr = (u32)&config->p_reg;
break;
case REGPHY_TIMING:
par_addr = (u32)&config->p_timing;
break;
case REGPHY_CAL:
par_addr = (u32)&config->p_cal;
break;
case REG_DYN:
case REGPHY_DYN:
case REG_TYPE_NB:
par_addr = (u32)NULL;
break;
}
return par_addr;
}
int stm32mp1_dump_param(const struct stm32mp1_ddr_config *config,
const char *name)
{
unsigned int i, j;
const struct reg_desc *desc;
u32 par_addr;
enum base_type p_base;
enum reg_type type;
const char *p_name;
enum base_type filter = NONE_BASE;
int result = -EINVAL;
if (name) {
if (strcmp(name, base_name[DDR_BASE]) == 0)
filter = DDR_BASE;
else if (strcmp(name, base_name[DDRPHY_BASE]) == 0)
filter = DDRPHY_BASE;
}
for (i = 0; i < ARRAY_SIZE(ddr_registers); i++) {
par_addr = get_par_addr(config, i);
if (!par_addr)
continue;
p_base = ddr_registers[i].base;
p_name = ddr_registers[i].name;
if (!name || (filter == p_base || !strcmp(name, p_name))) {
result = 0;
desc = ddr_registers[i].desc;
printf("==%s.%s==\n", base_name[p_base], p_name);
for (j = 0; j < ddr_registers[i].size; j++)
stm32mp1_dump_param_desc(par_addr, &desc[j]);
}
}
if (result) {
desc = found_reg(name, &type);
if (desc) {
par_addr = get_par_addr(config, type);
if (par_addr) {
stm32mp1_dump_param_desc(par_addr, desc);
result = 0;
}
}
}
return result;
}
void stm32mp1_edit_param(const struct stm32mp1_ddr_config *config,
char *name, char *string)
{
unsigned long *ptr, value;
enum reg_type type;
const struct reg_desc *desc;
u32 par_addr;
desc = found_reg(name, &type);
if (!desc) {
printf("%s not found\n", name);
return;
}
if (strict_strtoul(string, 16, &value) < 0) {
printf("invalid value %s\n", string);
return;
}
par_addr = get_par_addr(config, type);
if (!par_addr) {
printf("no parameter %s\n", name);
return;
}
ptr = (unsigned long *)(par_addr + desc->par_offset);
writel(value, ptr);
printf("%s= 0x%08x\n", desc->name, readl(ptr));
}
#endif
__weak bool stm32mp1_ddr_interactive(void *priv,
enum stm32mp1_ddr_interact_step step,
const struct stm32mp1_ddr_config *config)
{
return false;
}
#define INTERACTIVE(step)\
stm32mp1_ddr_interactive(priv, step, config)
static void ddrphy_idone_wait(struct stm32mp1_ddrphy *phy)
{
u32 pgsr;
@ -394,6 +679,7 @@ void stm32mp1_ddr_init(struct ddr_info *priv,
if (ret)
panic("ddr power init failed\n");
start:
debug("name = %s\n", config->info.name);
debug("speed = %d kHz\n", config->info.speed);
debug("size = 0x%x\n", config->info.size);
@ -427,6 +713,9 @@ void stm32mp1_ddr_init(struct ddr_info *priv,
udelay(2);
/* for PCLK = 133MHz => 1 us is enough, 2 to allow lower frequency */
if (INTERACTIVE(STEP_DDR_RESET))
goto start;
/* 1.5. initialize registers ddr_umctl2 */
/* Stop uMCTL2 before PHY is ready */
clrbits_le32(&priv->ctl->dfimisc, DDRCTRL_DFIMISC_DFI_INIT_COMPLETE_EN);
@ -444,6 +733,9 @@ void stm32mp1_ddr_init(struct ddr_info *priv,
set_reg(priv, REG_PERF, &config->c_perf);
if (INTERACTIVE(STEP_CTL_INIT))
goto start;
/* 2. deassert reset signal core_ddrc_rstn, aresetn and presetn */
clrbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCORERST);
clrbits_le32(priv->rcc + RCC_DDRITFCR, RCC_DDRITFCR_DDRCAXIRST);
@ -456,6 +748,9 @@ void stm32mp1_ddr_init(struct ddr_info *priv,
set_reg(priv, REGPHY_TIMING, &config->p_timing);
set_reg(priv, REGPHY_CAL, &config->p_cal);
if (INTERACTIVE(STEP_PHY_INIT))
goto start;
/* 4. Monitor PHY init status by polling PUBL register PGSR.IDONE
* Perform DDR PHY DRAM initialization and Gate Training Evaluation
*/
@ -512,4 +807,7 @@ void stm32mp1_ddr_init(struct ddr_info *priv,
/* enable uMCTL2 AXI port 0 and 1 */
setbits_le32(&priv->ctl->pctrl_0, DDRCTRL_PCTRL_N_PORT_EN);
setbits_le32(&priv->ctl->pctrl_1, DDRCTRL_PCTRL_N_PORT_EN);
if (INTERACTIVE(STEP_DDR_READY))
goto start;
}

390
drivers/ram/stm32mp1/stm32mp1_interactive.c Normal file
View File

@ -0,0 +1,390 @@
// SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause
/*
* Copyright (C) 2019, STMicroelectronics - All Rights Reserved
*/
#include <common.h>
#include <console.h>
#include <cli.h>
#include <clk.h>
#include <malloc.h>
#include <ram.h>
#include <reset.h>
#include "stm32mp1_ddr.h"
DECLARE_GLOBAL_DATA_PTR;
enum ddr_command {
DDR_CMD_HELP,
DDR_CMD_INFO,
DDR_CMD_FREQ,
DDR_CMD_RESET,
DDR_CMD_PARAM,
DDR_CMD_PRINT,
DDR_CMD_EDIT,
DDR_CMD_STEP,
DDR_CMD_NEXT,
DDR_CMD_GO,
DDR_CMD_TEST,
DDR_CMD_TUNING,
DDR_CMD_UNKNOWN,
};
const char *step_str[] = {
[STEP_DDR_RESET] = "DDR_RESET",
[STEP_CTL_INIT] = "DDR_CTRL_INIT_DONE",
[STEP_PHY_INIT] = "DDR PHY_INIT_DONE",
[STEP_DDR_READY] = "DDR_READY",
[STEP_RUN] = "RUN"
};
enum ddr_command stm32mp1_get_command(char *cmd, int argc)
{
const char *cmd_string[DDR_CMD_UNKNOWN] = {
[DDR_CMD_HELP] = "help",
[DDR_CMD_INFO] = "info",
[DDR_CMD_FREQ] = "freq",
[DDR_CMD_RESET] = "reset",
[DDR_CMD_PARAM] = "param",
[DDR_CMD_PRINT] = "print",
[DDR_CMD_EDIT] = "edit",
[DDR_CMD_STEP] = "step",
[DDR_CMD_NEXT] = "next",
[DDR_CMD_GO] = "go",
};
/* min and max number of argument */
const char cmd_arg[DDR_CMD_UNKNOWN][2] = {
[DDR_CMD_HELP] = { 0, 0 },
[DDR_CMD_INFO] = { 0, 255 },
[DDR_CMD_FREQ] = { 0, 1 },
[DDR_CMD_RESET] = { 0, 0 },
[DDR_CMD_PARAM] = { 0, 2 },
[DDR_CMD_PRINT] = { 0, 1 },
[DDR_CMD_EDIT] = { 2, 2 },
[DDR_CMD_STEP] = { 0, 1 },
[DDR_CMD_NEXT] = { 0, 0 },
[DDR_CMD_GO] = { 0, 0 },
};
int i;
for (i = 0; i < DDR_CMD_UNKNOWN; i++)
if (!strcmp(cmd, cmd_string[i])) {
if (argc - 1 < cmd_arg[i][0]) {
printf("no enought argument (min=%d)\n",
cmd_arg[i][0]);
return DDR_CMD_UNKNOWN;
} else if (argc - 1 > cmd_arg[i][1]) {
printf("too many argument (max=%d)\n",
cmd_arg[i][1]);
return DDR_CMD_UNKNOWN;
} else {
return i;
}
}
printf("unknown command %s\n", cmd);
return DDR_CMD_UNKNOWN;
}
static void stm32mp1_do_usage(void)
{
const char *usage = {
"commands:\n\n"
"help displays help\n"
"info displays DDR information\n"
"info <param> <val> changes DDR information\n"
" with <param> = step, name, size or speed\n"
"freq displays the DDR PHY frequency in kHz\n"
"freq <freq> changes the DDR PHY frequency\n"
"param [type|reg] prints input parameters\n"
"param <reg> <val> edits parameters in step 0\n"
"print [type|reg] dumps registers\n"
"edit <reg> <val> modifies one register\n"
"step lists the available step\n"
"step <n> go to the step <n>\n"
"next goes to the next step\n"
"go continues the U-Boot SPL execution\n"
"reset reboots machine\n"
"\nwith for [type|reg]:\n"
" all registers if absent\n"
" <type> = ctl, phy\n"
" or one category (static, timing, map, perf, cal, dyn)\n"
" <reg> = name of the register\n"
};
puts(usage);
}
static bool stm32mp1_check_step(enum stm32mp1_ddr_interact_step step,
enum stm32mp1_ddr_interact_step expected)
{
if (step != expected) {
printf("invalid step %d:%s expecting %d:%s\n",
step, step_str[step],
expected,
step_str[expected]);
return false;
}
return true;
}
static void stm32mp1_do_info(struct ddr_info *priv,
struct stm32mp1_ddr_config *config,
enum stm32mp1_ddr_interact_step step,
int argc, char * const argv[])
{
unsigned long value;
static char *ddr_name;
if (argc == 1) {
printf("step = %d : %s\n", step, step_str[step]);
printf("name = %s\n", config->info.name);
printf("size = 0x%x\n", config->info.size);
printf("speed = %d kHz\n", config->info.speed);
return;
}
if (argc < 3) {
printf("no enought parameter\n");
return;
}
if (!strcmp(argv[1], "name")) {
u32 i, name_len = 0;
for (i = 2; i < argc; i++)
name_len += strlen(argv[i]) + 1;
if (ddr_name)
free(ddr_name);
ddr_name = malloc(name_len);
config->info.name = ddr_name;
if (!ddr_name) {
printf("alloc error, length %d\n", name_len);
return;
}
strcpy(ddr_name, argv[2]);
for (i = 3; i < argc; i++) {
strcat(ddr_name, " ");
strcat(ddr_name, argv[i]);
}
printf("name = %s\n", ddr_name);
return;
}
if (!strcmp(argv[1], "size")) {
if (strict_strtoul(argv[2], 16, &value) < 0) {
printf("invalid value %s\n", argv[2]);
} else {
config->info.size = value;
printf("size = 0x%x\n", config->info.size);
}
return;
}
if (!strcmp(argv[1], "speed")) {
if (strict_strtoul(argv[2], 10, &value) < 0) {
printf("invalid value %s\n", argv[2]);
} else {
config->info.speed = value;
printf("speed = %d kHz\n", config->info.speed);
value = clk_get_rate(&priv->clk);
printf("DDRPHY = %ld kHz\n", value / 1000);
}
return;
}
printf("argument %s invalid\n", argv[1]);
}
static bool stm32mp1_do_freq(struct ddr_info *priv,
int argc, char * const argv[])
{
unsigned long ddrphy_clk;
if (argc == 2) {
if (strict_strtoul(argv[1], 0, &ddrphy_clk) < 0) {
printf("invalid argument %s", argv[1]);
return false;
}
if (clk_set_rate(&priv->clk, ddrphy_clk * 1000)) {
printf("ERROR: update failed!\n");
return false;
}
}
ddrphy_clk = clk_get_rate(&priv->clk);
printf("DDRPHY = %ld kHz\n", ddrphy_clk / 1000);
if (argc == 2)
return true;
return false;
}
static void stm32mp1_do_param(enum stm32mp1_ddr_interact_step step,
const struct stm32mp1_ddr_config *config,
int argc, char * const argv[])
{
switch (argc) {
case 1:
stm32mp1_dump_param(config, NULL);
break;
case 2:
if (stm32mp1_dump_param(config, argv[1]))
printf("invalid argument %s\n",
argv[1]);
break;
case 3:
if (!stm32mp1_check_step(step, STEP_DDR_RESET))
return;
stm32mp1_edit_param(config, argv[1], argv[2]);
break;
}
}
static void stm32mp1_do_print(struct ddr_info *priv,
int argc, char * const argv[])
{
switch (argc) {
case 1:
stm32mp1_dump_reg(priv, NULL);
break;
case 2:
if (stm32mp1_dump_reg(priv, argv[1]))
printf("invalid argument %s\n",
argv[1]);
break;
}
}
static int stm32mp1_do_step(enum stm32mp1_ddr_interact_step step,
int argc, char * const argv[])
{
int i;
unsigned long value;
switch (argc) {
case 1:
for (i = 0; i < ARRAY_SIZE(step_str); i++)
printf("%d:%s\n", i, step_str[i]);
break;
case 2:
if ((strict_strtoul(argv[1], 0,
&value) < 0) ||
value >= ARRAY_SIZE(step_str)) {
printf("invalid argument %s\n",
argv[1]);
goto end;
}
if (value != STEP_DDR_RESET &&
value <= step) {
printf("invalid target %d:%s, current step is %d:%s\n",
(int)value, step_str[value],
step, step_str[step]);
goto end;
}
printf("step to %d:%s\n",
(int)value, step_str[value]);
return (int)value;
};
end:
return step;
}
bool stm32mp1_ddr_interactive(void *priv,
enum stm32mp1_ddr_interact_step step,
const struct stm32mp1_ddr_config *config)
{
const char *prompt = "DDR>";
char buffer[CONFIG_SYS_CBSIZE];
char *argv[CONFIG_SYS_MAXARGS + 1]; /* NULL terminated */
int argc;
static int next_step = -1;
if (next_step < 0 && step == STEP_DDR_RESET) {
#ifdef CONFIG_STM32MP1_DDR_INTERACTIVE_FORCE
gd->flags &= ~(GD_FLG_SILENT |
GD_FLG_DISABLE_CONSOLE);
next_step = STEP_DDR_RESET;
#else
unsigned long start = get_timer(0);
while (1) {
if (tstc() && (getc() == 'd')) {
next_step = STEP_DDR_RESET;
break;
}
if (get_timer(start) > 100)
break;
}
#endif
}
debug("** step %d ** %s / %d\n", step, step_str[step], next_step);
if (next_step < 0)
return false;
if (step < 0 || step > ARRAY_SIZE(step_str)) {
printf("** step %d ** INVALID\n", step);
return false;
}
printf("%d:%s\n", step, step_str[step]);
printf("%s\n", prompt);
if (next_step > step)
return false;
while (next_step == step) {
cli_readline_into_buffer(prompt, buffer, 0);
argc = cli_simple_parse_line(buffer, argv);
if (!argc)
continue;
switch (stm32mp1_get_command(argv[0], argc)) {
case DDR_CMD_HELP:
stm32mp1_do_usage();
break;
case DDR_CMD_INFO:
stm32mp1_do_info(priv,
(struct stm32mp1_ddr_config *)config,
step, argc, argv);
break;
case DDR_CMD_FREQ:
if (stm32mp1_do_freq(priv, argc, argv))
next_step = STEP_DDR_RESET;
break;
case DDR_CMD_RESET:
do_reset(NULL, 0, 0, NULL);
break;
case DDR_CMD_PARAM:
stm32mp1_do_param(step, config, argc, argv);
break;
case DDR_CMD_PRINT:
stm32mp1_do_print(priv, argc, argv);
break;
case DDR_CMD_EDIT:
stm32mp1_edit_reg(priv, argv[1], argv[2]);
break;
case DDR_CMD_GO:
next_step = STEP_RUN;
break;
case DDR_CMD_NEXT:
next_step = step + 1;
break;
case DDR_CMD_STEP:
next_step = stm32mp1_do_step(step, argc, argv);
break;
default:
break;
}
}
return next_step == STEP_DDR_RESET;
}