e258b9a2d5
When MRC cache is available, first read only the SPD unique identifier bytes required to detect possible DIMM replacement. As this is 11 vs 256 bytes with slow SMBus operations, we save about 70ms for every installed DIMM on normal boot path. In the DIMM replacement case this adds some 10ms per installed DIMM as some SPD gets read twice, but we are on slow RAM training boot path anyways. Change-Id: I294a56e7b7562c3dea322c644b21a15abb033870 Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com> Reviewed-on: https://review.coreboot.org/17491 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Aaron Durbin <adurbin@chromium.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> |
||
|---|---|---|
| .. | ||
| acpi | ||
| acpi_tables.c | ||
| board_info.txt | ||
| chromeos.c | ||
| chromeos.fmd | ||
| cmos.layout | ||
| devicetree.cb | ||
| dsdt.asl | ||
| ec.c | ||
| ec.h | ||
| elpida_4Gb_1600_x16.spd.hex | ||
| gpio.c | ||
| hda_verb.c | ||
| i915.c | ||
| i915io.c | ||
| i915io.h | ||
| intel_dp.c | ||
| Kconfig | ||
| Kconfig.name | ||
| mainboard.c | ||
| mainboard_smi.c | ||
| Makefile.inc | ||
| micron_4Gb_1600_1.35v_x16.spd.hex | ||
| onboard.h | ||
| romstage.c | ||
| samsung_4Gb_1600_1.35v_x16.spd.hex | ||
| thermal.h | ||