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 <gaumless@gmail.com>
Signed-off-by: Martin Roth <martin.roth@se-eng.com>
Reviewed-on: http://review.coreboot.org/5791
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>

1 files changed, 77 insertions, 0 deletions

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})
+	}
+}