diff options
Diffstat (limited to 'src/cpu/amd/geode_lx/geode_lx_init.c')
-rw-r--r-- | src/cpu/amd/geode_lx/geode_lx_init.c | 74 |
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, +}; |