From 433659ad1e864808ec30e90a62ecfd711559c5a9 Mon Sep 17 00:00:00 2001 From: Martin Roth Date: Mon, 12 May 2014 21:55:00 -0600 Subject: fsp_baytrail: Add the FSP version of Intel's Bay Trail-I chip While similar to the Bay Trail-M/D code based on the MRC, there are many differences as well: - Obviously, uses the FSP instead of the MRC binaries. - FSP does additional hardware setup, so coreboot doesn't need to. - Different microcode & microcode loading method - Uses the cache_as_ram.inc from the FSP Driver - Various other changes in support of the FSP Additional changes that don't have to to with the FSP vs MRC: - Updated IRQ Routing - Different FADT implementation. This was validated with FSP: BAYTRAIL_FSP_GOLD_002_10-JANUARY-2014.fd SHA256: d29eefbb33454bd5314bfaa38fb055d592a757de7b348ed7096cd8c2d65908a5 MD5: 9360cd915f0d3e4116bbc782233d7b91 Change-Id: Iadadf8cd6cf444ba840e0f76d3aed7825cd7aee4 Signed-off-by: Martin Roth Signed-off-by: Martin Roth Reviewed-on: http://review.coreboot.org/5791 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer --- src/soc/intel/fsp_baytrail/acpi/cpu.asl | 77 +++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 src/soc/intel/fsp_baytrail/acpi/cpu.asl (limited to 'src/soc/intel/fsp_baytrail/acpi/cpu.asl') diff --git a/src/soc/intel/fsp_baytrail/acpi/cpu.asl b/src/soc/intel/fsp_baytrail/acpi/cpu.asl new file mode 100644 index 0000000000..16f62ba309 --- /dev/null +++ b/src/soc/intel/fsp_baytrail/acpi/cpu.asl @@ -0,0 +1,77 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 Google Inc. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; version 2 of + * the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +/* These devices are created at runtime */ +External (\_PR.CPU0, DeviceObj) +External (\_PR.CPU1, DeviceObj) +External (\_PR.CPU2, DeviceObj) +External (\_PR.CPU3, DeviceObj) + +/* Notify OS to re-read CPU tables, assuming ^2 CPU count */ +Method (PNOT) +{ + If (LGreaterEqual (\PCNT, 2)) { + Notify (\_PR.CPU0, 0x81) // _CST + Notify (\_PR.CPU1, 0x81) // _CST + } + If (LGreaterEqual (\PCNT, 4)) { + Notify (\_PR.CPU2, 0x81) // _CST + Notify (\_PR.CPU3, 0x81) // _CST + } +} + +/* Notify OS to re-read CPU _PPC limit, assuming ^2 CPU count */ +Method (PPCN) +{ + If (LGreaterEqual (\PCNT, 2)) { + Notify (\_PR.CPU0, 0x80) // _PPC + Notify (\_PR.CPU1, 0x80) // _PPC + } + If (LGreaterEqual (\PCNT, 4)) { + Notify (\_PR.CPU2, 0x80) // _PPC + Notify (\_PR.CPU3, 0x80) // _PPC + } +} + +/* Notify OS to re-read Throttle Limit tables, assuming ^2 CPU count */ +Method (TNOT) +{ + If (LGreaterEqual (\PCNT, 2)) { + Notify (\_PR.CPU0, 0x82) // _TPC + Notify (\_PR.CPU1, 0x82) // _TPC + } + If (LGreaterEqual (\PCNT, 4)) { + Notify (\_PR.CPU2, 0x82) // _TPC + Notify (\_PR.CPU3, 0x82) // _TPC + } +} + +/* Return a package containing enabled processor entries */ +Method (PPKG) +{ + If (LGreaterEqual (\PCNT, 4)) { + Return (Package() {\_PR.CPU0, \_PR.CPU1, \_PR.CPU2, \_PR.CPU3}) + } ElseIf (LGreaterEqual (\PCNT, 2)) { + Return (Package() {\_PR.CPU0, \_PR.CPU1}) + } Else { + Return (Package() {\_PR.CPU0}) + } +} -- cgit v1.2.3