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nb/intel/sandybridge: Drop `precharge` function 

This is a copy of `find_predefined_pattern` without any effect.

Tested on Asus P8H61-M PRO, still boots.

Change-Id: Ieb72066ca25b40b6e60f04e6c4097a0ccc2a56b3
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/47620
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
This commit is contained in:
Angel Pons 2020-11-15 13:06:53 +01:00 committed by Patrick Georgi
parent c39d11cec0
commit 4c76d25717
1 changed files with 2 additions and 47 deletions
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49
src/northbridge/intel/sandybridge/raminit_common.c
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@ -1651,51 +1651,6 @@ static void fill_pattern1(ramctr_timing *ctrl, int channel)
program_wdb_pattern_length(channel, 16); program_wdb_pattern_length(channel, 16);
} }
static void precharge(ramctr_timing *ctrl)
{
int channel, slotrank, lane;
FOR_ALL_POPULATED_CHANNELS {
FOR_ALL_POPULATED_RANKS FOR_ALL_LANES {
ctrl->timings[channel][slotrank].lanes[lane].falling = 16;
ctrl->timings[channel][slotrank].lanes[lane].rising = 16;
}
program_timings(ctrl, channel);
FOR_ALL_POPULATED_RANKS {
wait_for_iosav(channel);
iosav_write_read_mpr_sequence(
channel, slotrank, ctrl->tMOD, 3, 4, 1, ctrl->CAS + 8);
/* Execute command queue */
iosav_run_once(channel);
wait_for_iosav(channel);
}
FOR_ALL_POPULATED_RANKS FOR_ALL_LANES {
ctrl->timings[channel][slotrank].lanes[lane].falling = 48;
ctrl->timings[channel][slotrank].lanes[lane].rising = 48;
}
program_timings(ctrl, channel);
FOR_ALL_POPULATED_RANKS {
wait_for_iosav(channel);
iosav_write_read_mpr_sequence(
channel, slotrank, ctrl->tMOD, 3, 4, 1, ctrl->CAS + 8);
/* Execute command queue */
iosav_run_once(channel);
wait_for_iosav(channel);
}
}
}
static int write_level_rank(ramctr_timing *ctrl, int channel, int slotrank) static int write_level_rank(ramctr_timing *ctrl, int channel, int slotrank)
{ {
int timB; int timB;
@ -2010,12 +1965,12 @@ int write_training(ramctr_timing *ctrl)
FOR_ALL_POPULATED_CHANNELS FOR_ALL_POPULATED_CHANNELS
MCHBAR32_OR(TC_RWP_ch(channel), 1 << 27); MCHBAR32_OR(TC_RWP_ch(channel), 1 << 27);
printram("CPE\n");
err = jedec_write_leveling(ctrl); err = jedec_write_leveling(ctrl);
if (err) if (err)
return err; return err;
printram("CPE\n");
precharge(ctrl);
printram("CPF\n"); printram("CPF\n");
FOR_ALL_POPULATED_CHANNELS FOR_ALL_LANES { FOR_ALL_POPULATED_CHANNELS FOR_ALL_LANES {