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bios: remove usddrphy debug (we'll use a specific debug firmware to fix the usddrphy corner cases).

This commit is contained in:
Florent Kermarrec 2020-05-05 16:27:21 +02:00
parent 98d1b45157
commit 95b57899cd
5 changed files with 7 additions and 233 deletions
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1
litex/boards/targets/kcu105.py
View File

@ -68,7 +68,6 @@ class BaseSoC(SoCCore):
iodelay_clk_freq = 200e6,
cmd_latency = 1)
self.add_csr("ddrphy")
self.add_constant("USDDRPHY_DEBUG")
self.add_sdram("sdram",
phy = self.ddrphy,
module = EDY4016A(sys_clk_freq, "1:4"),

11
litex/soc/software/bios/Makefile
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@ -11,12 +11,12 @@ CFLAGS += -DTFTP_SERVER_PORT=$(TFTP_SERVER_PORT)
endif
OBJECTS = isr.o \
sdram.o \
sdcard.o \
main.o \
sdram.o \
sdcard.o \
main.o \
boot-helper.o \
boot.o \
helpers.o \
boot.o \
helpers.o \
cmd_bios.o \
cmd_boot.o \
cmd_dram.o \
@ -24,7 +24,6 @@ OBJECTS = isr.o \
cmd_mem_access.o \
cmd_sdcard.o \
cmd_spi_flash.o \
cmd_usddrphy.o
ifneq "$(or $(TERM_NO_COMPLETE),$(TERM_MINI))" ""
CFLAGS += -DTERM_NO_COMPLETE

128
litex/soc/software/bios/commands/cmd_usddrphy.c
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@ -1,128 +0,0 @@
// SPDX-License-Identifier: BSD-Source-Code
#include <stdio.h>
#include <stdlib.h>
#include <generated/csr.h>
#include "../command.h"
#include "../helpers.h"
#include "../sdram.h"
/**
* Command "sdram_cdly"
*
* Set SDRAM clk/cmd delay
*
*/
#ifdef USDDRPHY_DEBUG
static void sdram_cdly(int nb_params, char **params)
{
unsigned int delay;
char *c;
if (nb_params < 1) {
printf("sdram_cdly <delay>");
return;
}
delay = strtoul(params[0], &c, 0);
if (*c != 0) {
printf("Incorrect delay");
return;
}
ddrphy_cdly(delay);
}
define_command(sdram_cdly, sdram_cdly, "Set SDRAM clk/cmd delay", DDR_CMDS);
#endif
/**
* Command "sdram_cdly"
*
* Run SDRAM calibration
*
*/
#ifdef USDDRPHY_DEBUG
define_command(sdram_cal, sdram_cal, "Run SDRAM calibration", DDR_CMDS);
#endif
/**
* Command "sdram_mpr"
*
* Read SDRAM MPR
*
*/
#ifdef USDDRPHY_DEBUG
define_command(sdram_mpr, sdram_mpr, "Read SDRAM MPR", DDR_CMDS);
#endif
/**
* Command "sdram_mrwr"
*
* Write SDRAM mode registers
*
*/
#ifdef USDDRPHY_DEBUG
static void sdram_mrwr(int nb_params, char **params)
{
unsigned int reg;
unsigned int value;
char *c;
if (nb_params < 2) {
printf("sdram_mrwr <reg> <value>");
return;
}
reg = strtoul(params[0], &c, 0);
if (*c != 0) {
printf("Incorrect register value");
return;
}
value = strtoul(params[1], &c, 0);
if (*c != 0) {
printf("Incorrect value");
return;
}
sdrsw();
printf("Writing 0x%04x to SDRAM mode register %d\n", value, reg);
sdrmrwr(reg, value);
sdrhw();
}
define_command(sdram_mrwr, sdram_mrwr, "Write SDRAM mode registers", DDR_CMDS);
#endif
/**
* Command "sdram_cdly_scan"
*
* Enable/disable cdly scan
*
*/
#ifdef USDDRPHY_DEBUG
static void sdram_cdly_scan(int nb_params, char **params)
{
unsigned int value;
char *c;
if (nb_params < 1) {
printf("sdram_cdly_scan <value>");
return;
}
value = strtoul(params[0], &c, 0);
if (*c != 0) {
printf("Incorrect value");
return;
}
sdr_cdly_scan(value);
}
define_command(sdram_cdly_scan, sdram_cdly_scan, "Enable/disable cdly scan", DDR_CMDS);
#endif

91
litex/soc/software/bios/sdram.c
View File

@ -166,7 +166,7 @@ void sdrwr(unsigned int addr)
#ifdef CSR_DDRPHY_BASE
#if defined(DDRPHY_CMD_DELAY) || defined(USDDRPHY_DEBUG)
#if defined(DDRPHY_CMD_DELAY)
void ddrphy_cdly(unsigned int delay) {
printf("Setting clk/cmd delay to %d taps\n", delay);
#if CSR_DDRPHY_EN_VTC_ADDR
@ -1048,93 +1048,4 @@ int sdrinit(void)
return 1;
}
#ifdef USDDRPHY_DEBUG
#define MPR0_SEL (0 << 0)
#define MPR1_SEL (1 << 0)
#define MPR2_SEL (2 << 0)
#define MPR3_SEL (3 << 0)
#define MPR_ENABLE (1 << 2)
#define MPR_READ_SERIAL (0 << 11)
#define MPR_READ_PARALLEL (1 << 11)
#define MPR_READ_STAGGERED (2 << 11)
void sdrcal(void)
{
#ifdef CSR_DDRPHY_BASE
#if CSR_DDRPHY_EN_VTC_ADDR
ddrphy_en_vtc_write(0);
#endif
sdrlevel();
#if CSR_DDRPHY_EN_VTC_ADDR
ddrphy_en_vtc_write(1);
#endif
#endif
sdrhw();
}
void sdrmrwr(char reg, int value) {
sdram_dfii_pi0_address_write(value);
sdram_dfii_pi0_baddress_write(reg);
command_p0(DFII_COMMAND_RAS|DFII_COMMAND_CAS|DFII_COMMAND_WE|DFII_COMMAND_CS);
}
static void sdrmpron(char mpr)
{
sdrmrwr(3, MPR_READ_SERIAL | MPR_ENABLE | mpr);
}
static void sdrmproff(void)
{
sdrmrwr(3, 0);
}
void sdrmpr(void)
{
int module, phase;
unsigned char buf[DFII_PIX_DATA_BYTES];
printf("Read SDRAM MPR...\n");
/* rst phy */
for(module=0; module<SDRAM_PHY_MODULES; module++) {
#ifdef SDRAM_PHY_WRITE_LEVELING_CAPABLE
write_delay_rst(module);
#endif
read_delay_rst(module);
read_bitslip_rst(module);
}
/* software control */
sdrsw();
printf("Reads with MPR0 (0b01010101) enabled...\n");
sdrmpron(MPR0_SEL);
command_prd(DFII_COMMAND_CAS|DFII_COMMAND_CS|DFII_COMMAND_RDDATA);
cdelay(15);
for (module=0; module < SDRAM_PHY_MODULES; module++) {
printf("m%d: ", module);
for(phase=0; phase<SDRAM_PHY_PHASES; phase++) {
csr_rd_buf_uint8(sdram_dfii_pix_rddata_addr[phase],
buf, DFII_PIX_DATA_BYTES);
printf("%d", buf[ SDRAM_PHY_MODULES-module-1] & 0x1);
printf("%d", buf[2*SDRAM_PHY_MODULES-module-1] & 0x1);
}
printf("\n");
}
sdrmproff();
/* hardware control */
sdrhw();
}
void sdr_cdly_scan(int enabled)
{
printf("Turning cdly scan %s\n", enabled ? "ON" : "OFF");
_write_level_cdly_scan = enabled;
}
#endif
#endif

7
litex/soc/software/bios/sdram.h
View File

@ -25,11 +25,4 @@ int sdrinit(void);
void ddrphy_cdly(unsigned int delay);
#endif
#ifdef USDDRPHY_DEBUG
void sdrcal(void);
void sdrmrwr(char reg, int value);
void sdrmpr(void);
void sdr_cdly_scan(int enabled);
#endif
#endif /* __SDRAM_H */