Copy and convert Romulus descriptors to Talos

Talos II has some hardware differences from Romulus, therefore
we cannot guarantee Talos II == Romulus in skiboot.  Copy and
slightly modify the Romulus files for Talos II.

Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Signed-off-by: Stewart Smith <stewart@linux.ibm.com>

platforms/astbmc/Makefile.inc

@@ -4,7 +4,8 @@ ASTBMC_OBJS = pnor.o common.o slots.o \
 	      palmetto.o habanero.o firestone.o \
 	      p8dtu.o p8dnu.o \
 	      garrison.o barreleye.o \
-	      witherspoon.o zaius.o romulus.o p9dsu.o vesnin.o
+	      witherspoon.o zaius.o romulus.o p9dsu.o vesnin.o \
+	      talos.o
 
 ASTBMC = $(PLATDIR)/astbmc/built-in.a
 $(ASTBMC): $(ASTBMC_OBJS:%=$(PLATDIR)/astbmc/%)

platforms/astbmc/talos.c

@@ -0,0 +1,86 @@
+/* Copyright 2017 IBM Corp.
+ * Copyright 2018-2019 Raptor Engineering, LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+ * implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <skiboot.h>
+#include <device.h>
+#include <console.h>
+#include <chip.h>
+#include <ipmi.h>
+#include <psi.h>
+#include <npu-regs.h>
+
+#include "astbmc.h"
+
+ST_PLUGGABLE(talos_cpu1_slot1, "CPU1 Slot1 (8x)");
+ST_PLUGGABLE(talos_cpu1_slot2, "CPU1 Slot2 (16x)");
+
+ST_PLUGGABLE(talos_cpu2_slot1, "CPU2 Slot1 (16x)");
+ST_PLUGGABLE(talos_cpu2_slot2, "CPU2 Slot2 (16x)");
+ST_PLUGGABLE(talos_cpu2_slot3, "CPU2 Slot3 (8x)");
+
+ST_BUILTIN_DEV(talos_builtin_raid, "Builtin SAS");
+ST_BUILTIN_DEV(talos_builtin_usb, "Builtin USB");
+ST_BUILTIN_DEV(talos_builtin_ethernet, "Builtin Ethernet");
+ST_BUILTIN_DEV(talos_builtin_bmc, "BMC");
+
+static const struct slot_table_entry talos_phb_table[] = {
+	ST_PHB_ENTRY(0, 0, talos_cpu1_slot2),
+	ST_PHB_ENTRY(0, 1, talos_cpu1_slot1),
+
+	ST_PHB_ENTRY(0, 2, talos_builtin_raid),
+	ST_PHB_ENTRY(0, 3, talos_builtin_usb),
+	ST_PHB_ENTRY(0, 4, talos_builtin_ethernet),
+	ST_PHB_ENTRY(0, 5, talos_builtin_bmc),
+
+	ST_PHB_ENTRY(8, 0, talos_cpu2_slot2), // might be swapped with 3
+	ST_PHB_ENTRY(8, 1, talos_cpu2_slot3), // might be PHB1 or 2
+	ST_PHB_ENTRY(8, 3, talos_cpu2_slot1),
+
+	{ .etype = st_end },
+};
+
+static bool talos_probe(void)
+{
+	if (!dt_node_is_compatible(dt_root, "rcs,talos"))
+		return false;
+
+	/* Lot of common early inits here */
+	astbmc_early_init();
+
+	/* Setup UART for use by OPAL (Linux hvc) */
+	uart_set_console_policy(UART_CONSOLE_OPAL);
+
+	slot_table_init(talos_phb_table);
+
+	return true;
+}
+
+DECLARE_PLATFORM(talos) = {
+	.name			= "Talos",
+	.probe			= talos_probe,
+	.init			= astbmc_init,
+	.start_preload_resource	= flash_start_preload_resource,
+	.resource_loaded	= flash_resource_loaded,
+	.bmc			= &bmc_plat_ast2500_openbmc,
+	.pci_get_slot_info	= slot_table_get_slot_info,
+	.pci_probe_complete	= check_all_slot_table,
+	.cec_power_down         = astbmc_ipmi_power_down,
+	.cec_reboot             = astbmc_ipmi_reboot,
+	.elog_commit		= ipmi_elog_commit,
+	.exit			= astbmc_exit,
+	.terminate		= ipmi_terminate,
+};