ACPI: Add acpi_is_wakeup_s3() for romstage

This replaces acpi_is_wakeup_early().

Change-Id: I23112c1fc7b6f99584bc065fbf6b10fb073b1eb6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/8187
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>

1 files changed, 59 insertions, 0 deletions

diff --git a/src/southbridge/amd/agesa/hudson/ramtop.c b/src/southbridge/amd/agesa/hudson/ramtop.c
new file mode 100644
index 0000000000..182150f02e
--- /dev/null
+++ b/src/southbridge/amd/agesa/hudson/ramtop.c
@@ -0,0 +1,59 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2010 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.
+ *
+ * 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
+ */
+
+#include <stdint.h>
+#include <arch/io.h>
+#include <arch/acpi.h>
+#include <cbmem.h>
+#include "hudson.h"
+
+int acpi_get_sleep_type(void)
+{
+	u16 tmp = inw(ACPI_PM1_CNT_BLK);
+	tmp = ((tmp & (7 << 10)) >> 10);
+	return (int)tmp;
+}
+
+#ifndef __PRE_RAM__
+void backup_top_of_ram(uint64_t ramtop)
+{
+	u32 dword = (u32) ramtop;
+	int nvram_pos = 0xf8, i; /* temp */
+	for (i = 0; i<4; i++) {
+		outb(nvram_pos, BIOSRAM_INDEX);
+		outb((dword >>(8 * i)) & 0xff , BIOSRAM_DATA);
+		nvram_pos++;
+	}
+}
+#endif
+
+unsigned long get_top_of_ram(void)
+{
+	uint32_t xdata = 0;
+	int xnvram_pos = 0xf8, xi;
+	if (acpi_get_sleep_type() != 3)
+		return 0;
+	for (xi = 0; xi<4; xi++) {
+		outb(xnvram_pos, BIOSRAM_INDEX);
+		xdata &= ~(0xff << (xi * 8));
+		xdata |= inb(BIOSRAM_DATA) << (xi *8);
+		xnvram_pos++;
+	}
+	return (unsigned long) xdata;
+}