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cmds/cmd_litedram: read entire SPD 

Make use of added function `sdram_read_spd` to read entire SPD.
Also a typo fix.

Signed-off-by: Michal Sieron <msieron@antmicro.com>
This commit is contained in:
Michal Sieron 2023-01-09 16:22:09 +01:00
parent 39a8ca6fb6
commit 2bdf04c19e
1 changed files with 4 additions and 6 deletions
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10
litex/soc/software/bios/cmds/cmd_litedram.c
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@ -12,6 +12,7 @@
#include <libbase/i2c.h> #include <libbase/i2c.h>
#include <liblitedram/sdram.h> #include <liblitedram/sdram.h>
#include <liblitedram/sdram_spd.h>
#include <liblitedram/bist.h> #include <liblitedram/bist.h>
#include "../command.h" #include "../command.h"
@ -354,14 +355,11 @@ define_command(sdram_mr_write, sdram_mr_write_handler, "Write SDRAM Mode Registe
* *
*/ */
#ifdef CONFIG_HAS_I2C #ifdef CONFIG_HAS_I2C
#define SPD_RW_PREAMBLE 0b1010
#define SPD_RW_ADDR(a210) ((SPD_RW_PREAMBLE << 3) | ((a210) & 0b111))
static void sdram_spd_handler(int nb_params, char **params) static void sdram_spd_handler(int nb_params, char **params)
{ {
char *c; char *c;
unsigned char spdaddr; unsigned char spdaddr;
unsigned char buf[256]; unsigned char buf[SDRAM_SPD_SIZE];
int len = sizeof(buf); int len = sizeof(buf);
bool send_stop = true; bool send_stop = true;
@ -388,7 +386,7 @@ static void sdram_spd_handler(int nb_params, char **params)
} }
} }
if (!i2c_read(SPD_RW_ADDR(spdaddr), 0, buf, len, send_stop, 1)) { if (!sdram_read_spd(spdaddr, 0, buf, (uint16_t)len, send_stop)) {
printf("Error when reading SPD EEPROM"); printf("Error when reading SPD EEPROM");
return; return;
} }
@ -400,7 +398,7 @@ static void sdram_spd_handler(int nb_params, char **params)
int cmp_result; int cmp_result;
cmp_result = memcmp(buf, (void *) SPD_BASE, SPD_SIZE); cmp_result = memcmp(buf, (void *) SPD_BASE, SPD_SIZE);
if (cmp_result == 0) { if (cmp_result == 0) {
printf("Memory conents matches the data used for gateware generation\n"); printf("Memory contents matches the data used for gateware generation\n");
} else { } else {
printf("\nWARNING: memory differs from the data used during gateware generation:\n"); printf("\nWARNING: memory differs from the data used during gateware generation:\n");
dump_bytes((void *) SPD_BASE, SPD_SIZE, 0); dump_bytes((void *) SPD_BASE, SPD_SIZE, 0);