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Diffstat (limited to 'src/cpu/amd/geode_lx/geode_lx_init.c')
-rw-r--r--src/cpu/amd/geode_lx/geode_lx_init.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/src/cpu/amd/geode_lx/geode_lx_init.c b/src/cpu/amd/geode_lx/geode_lx_init.c
new file mode 100644
index 0000000000..bb9a73ecc0
--- /dev/null
+++ b/src/cpu/amd/geode_lx/geode_lx_init.c
@@ -0,0 +1,74 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2006 Indrek Kruusa <indrek.kruusa@artecdesign.ee>
+ * Copyright (C) 2006 Ronald G. Minnich <rminnich@gmail.com>
+ * Copyright (C) 2006 Stefan Reinauer <stepan@coresystems.de>
+ * Copyright (C) 2006 Andrei Birjukov <andrei.birjukov@artecdesign.ee>
+ * Copyright (C) 2007 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; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * 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 <console/console.h>
+#include <device/device.h>
+#include <device/pci.h>
+#include <string.h>
+#include <cpu/cpu.h>
+#include <cpu/x86/lapic.h>
+#include <cpu/x86/cache.h>
+#include <arch/io.h>
+
+static void vsm_end_post_smi(void)
+{
+ __asm__ volatile ("push %ax\n"
+ "mov $0x5000, %ax\n"
+ ".byte 0x0f, 0x38\n" "pop %ax\n");
+}
+
+static void geode_lx_init(device_t dev)
+{
+ printk(BIOS_DEBUG, "geode_lx_init\n");
+
+ /* Turn on caching if we haven't already */
+ x86_enable_cache();
+
+ /* Enable the local cpu apics */
+ //setup_lapic();
+
+ // do VSA late init
+ vsm_end_post_smi();
+
+ // Set gate A20 (legacy vsm disables it in late init)
+ printk(BIOS_DEBUG, "A20 (0x92): %d\n", inb(0x92));
+ outb(0x02, 0x92);
+ printk(BIOS_DEBUG, "A20 (0x92): %d\n", inb(0x92));
+
+ printk(BIOS_DEBUG, "CPU geode_lx_init DONE\n");
+};
+
+static struct device_operations cpu_dev_ops = {
+ .init = geode_lx_init,
+};
+
+static struct cpu_device_id cpu_table[] = {
+ {X86_VENDOR_AMD, 0x05A2},
+ {0, 0},
+};
+
+static const struct cpu_driver driver __cpu_driver = {
+ .ops = &cpu_dev_ops,
+ .id_table = cpu_table,
+};