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inteltool: Add function to generate SPD dump.

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E.g. on my MacbookAir to generate spd.bin to be used
with coreboot I do:

./inteltool -S spd.bin

Change-Id: If165475ed3e1f3262a8926ef619128d25b1e2896
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com>
Reviewed-on: http://review.coreboot.org/11847
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
This commit is contained in:
Vladimir Serbinenko
2015-10-10 13:20:32 +02:00
parent cd19f7d867
commit fb69a69fce
4 changed files with 41 additions and 7 deletions
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29
util/inteltool/ivy_memory.c
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@ -19,6 +19,7 @@
#include <stdlib.h>
#include <string.h>
#include <inttypes.h>
#include <errno.h>
#include "inteltool.h"
extern volatile uint8_t *mchbar;
@ -69,7 +70,7 @@ static u16 spd_ddr3_calc_crc(u8 * spd)
return crc;
}
void ivybridge_dump_timings(void)
void ivybridge_dump_timings(const char *dump_spd_file)
{
u32 mr0[2];
u32 mr1[2];
@ -362,8 +363,20 @@ void ivybridge_dump_timings(void)
printf("/* SPD matching current mode: */\n");
FILE *dump_spd = 0;
if (dump_spd_file) {
dump_spd = fopen (dump_spd_file, "wb");
if (!dump_spd) {
fprintf (stderr, "Couldn't open file %s: %s\n", dump_spd_file,
strerror (errno));
exit (1);
}
}
for (channel = 0; channel < 2; channel++)
for (slot = 0; slot < 2; slot++)
{
if (slots[channel][slot].size_mb) {
int i;
@ -377,6 +390,20 @@ void ivybridge_dump_timings(void)
printf("\n");
}
printf("\n");
if (dump_spd) {
fwrite(spd[channel][slot], 1, 256, dump_spd);
}
} else {
if (dump_spd) {
char zero[256];
memset (zero, 0, 256);
fwrite(zero, 1, 256, dump_spd);
}
}
}
if (dump_spd) {
fclose (dump_spd);
}
}