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soc/intel: drop P_BLK support

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P_BLK is legacy and superseded by ACPI _CST. Also, the implementation
for most platforms in soc/intel is broken. Thus, drop it.

For APL the IO redirection is kept since it's used as replacement for
the broken MWAIT instructions.

Change-Id: I489aa7886dd9a4c1e6c12542bc2a1feba245ec36
Signed-off-by: Michael Niewöhner <foss@mniewoehner.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58096
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Michael Niewöhner
2021-10-04 16:59:49 +02:00
parent 51254ee939
commit 2353cd9936
14 changed files with 9 additions and 76 deletions
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8
src/soc/intel/baytrail/acpi.c
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@@ -272,17 +272,11 @@ static void generate_p_state_entries(int core, int cores_per_package)
void generate_cpu_entries(const struct device *device)
{
int core;
int pcontrol_blk = get_pmbase(), plen = 6;
const struct pattrs *pattrs = pattrs_get();
for (core = 0; core < pattrs->num_cpus; core++) {
if (core > 0) {
pcontrol_blk = 0;
plen = 0;
}
/* Generate processor \_SB.CPUx */
acpigen_write_processor(core, pcontrol_blk, plen);
acpigen_write_processor(core, 0, 0);
/* Generate P-state tables */
generate_p_state_entries(core, pattrs->num_cpus);