AGESA: Introduce AGESA_LEGACY and its counterpart

We define AGESA_LEGACY as an implementation of mainboard
that has its romstage main completely under mainboard/
directory. We have learnt from other platforms this approach
has several downsides when it comes to making platform-wide
improvements.

We start by creating per-family romstage.c file, which
boards will gradually take into use by removing the
AGESA_LEGACY Kconfig option we here apply to all of them.

Change-Id: Id01931e185a023039a60af16a678de9966db8d65
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/18619
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
Reviewed-by: Martin Roth <martinroth@google.com>

2 files changed, 94 insertions, 0 deletions

diff --git a/src/cpu/amd/agesa/family16kb/Makefile.inc b/src/cpu/amd/agesa/family16kb/Makefile.inc
index 9367b458a3..31c3ecfabc 100644
--- a/src/cpu/amd/agesa/family16kb/Makefile.inc
+++ b/src/cpu/amd/agesa/family16kb/Makefile.inc
@@ -14,6 +14,7 @@
 #
 
 romstage-y += fixme.c
+romstage-$(CONFIG_AGESA_NO_LEGACY) += romstage.c
 
 ramstage-y += fixme.c
 ramstage-y += chip_name.c
diff --git a/src/cpu/amd/agesa/family16kb/romstage.c b/src/cpu/amd/agesa/family16kb/romstage.c
new file mode 100644
index 0000000000..f1deeb9092
--- /dev/null
+++ b/src/cpu/amd/agesa/family16kb/romstage.c
@@ -0,0 +1,93 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2012 Advanced Micro Devices, 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.
+ */
+
+#include <northbridge/amd/agesa/agesawrapper.h>
+#include <northbridge/amd/agesa/agesa_helper.h>
+#include <northbridge/amd/agesa/state_machine.h>
+
+#include <arch/acpi.h>
+#include <arch/cpu.h>
+#include <arch/io.h>
+#include <arch/stages.h>
+#include <cbmem.h>
+#include <console/console.h>
+#include <cpu/amd/agesa/s3_resume.h>
+#include <cpu/x86/bist.h>
+#include <cpu/x86/lapic.h>
+#include <cpu/amd/car.h>
+#include <device/pci_def.h>
+#include <device/pci_ids.h>
+#include <stdint.h>
+#include <string.h>
+#include <southbridge/amd/agesa/hudson/hudson.h>
+
+void cache_as_ram_main(unsigned long bist, unsigned long cpu_init_detectedx)
+{
+	struct sysinfo *cb = NULL;
+	u32 val;
+
+	amd_initmmio();
+
+	if (!cpu_init_detectedx && boot_cpu()) {
+		post_code(0x30);
+
+		board_BeforeAgesa(cb);
+
+		post_code(0x31);
+		console_init();
+	}
+
+	/* Halt if there was a built in self test failure */
+	post_code(0x34);
+	report_bist_failure(bist);
+
+	/* Load MPB */
+	val = cpuid_eax(1);
+	printk(BIOS_DEBUG, "BSP Family_Model: %08x\n", val);
+	printk(BIOS_DEBUG, "cpu_init_detectedx = %08lx\n", cpu_init_detectedx);
+
+	post_code(0x37);
+	agesawrapper_amdinitreset();
+
+	post_code(0x39);
+	agesawrapper_amdinitearly();
+
+	int s3resume = acpi_is_wakeup_s3();
+	if (!s3resume) {
+		post_code(0x40);
+		agesawrapper_amdinitpost();
+
+		post_code(0x41);
+		agesawrapper_amdinitenv();
+
+		/* TODO: Disable cache is not ok. */
+		disable_cache_as_ram();
+	} else {
+		printk(BIOS_INFO, "S3 detected\n");
+
+		post_code(0x60);
+		agesawrapper_amdinitresume();
+
+		amd_initcpuio();
+		agesawrapper_amds3laterestore();
+
+		post_code(0x61);
+		prepare_for_resume();
+	}
+
+	post_code(0x50);
+	copy_and_run();
+}
+