diff options
author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2011-11-03 15:22:01 +0200 |
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committer | Patrick Georgi <patrick@georgi-clan.de> | 2012-03-08 14:26:24 +0100 |
commit | 91162705a65e87c56d9fc58edfe597140d1b4d53 (patch) | |
tree | e549c88e3aa264f3817ae4efc7e0a2ca72394cf9 /src/mainboard/aopen/dxplplusu/romstage.c | |
parent | c5fc7db3559e080858461b724251f87be6faa2cd (diff) |
Add support for A-Open DXPL Plus-U motherboard
This is an old (pre-2005) entry-level server mainboard. The code
is adapted from mainboard/intel/xe7501devkit.
Featured chips:
- Dual socket604
- E7505 northbridge
- 82801DB southbridge (with EHCI debug port)
- 82870p2 PCI-X bridge
- LPC47M102S-MC super-io
- 512kB FWH flash (flashrom does the job well)
What works:
- Dual-Xeon P4/HT boot with microcode update
- RAM: registered ECC DDR266 in dual-channel
- PCI-X slot interrupts with ACPI and I/O apic
- On-board PCI-X GbE and SCSI
- ACPI power-off and wakeup with PME#
Notes :
- Current ACPI is more or less a mess
- Interrupts do not route correctly with PIRQ
- MP-table is not implemented
- Issues with reboots remain (cold and warm)
- Many superio devices are disabled by default
- Audio codec is not investigated
Change-Id: I02d18c83f485a09ada65dde03bcc86e9163f2011
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/303
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/mainboard/aopen/dxplplusu/romstage.c')
-rw-r--r-- | src/mainboard/aopen/dxplplusu/romstage.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/src/mainboard/aopen/dxplplusu/romstage.c b/src/mainboard/aopen/dxplplusu/romstage.c new file mode 100644 index 0000000000..92ce8961d4 --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/romstage.c @@ -0,0 +1,103 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2011 Kyösti Mälkki <kyosti.malkki@gmail.com> + * + * 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 <device/pci_def.h> +#include <arch/io.h> +#include <device/pnp_def.h> +#include <arch/romcc_io.h> +#include <cpu/x86/lapic.h> +#include <arch/cpu.h> +#include <stdlib.h> +#include <pc80/mc146818rtc.h> +#include <console/console.h> + +#include "southbridge/intel/i82801dx/i82801dx.h" +#include "southbridge/intel/i82801dx/early_smbus.c" +#include "southbridge/intel/i82801dx/reset.c" +#include "northbridge/intel/e7505/raminit.h" +#include "northbridge/intel/e7505/debug.c" +#include "superio/smsc/lpc47m10x/early_serial.c" + +#if !CONFIG_CACHE_AS_RAM +#include "cpu/x86/lapic/boot_cpu.c" +#include "cpu/x86/mtrr/earlymtrr.c" +#endif +#include "cpu/x86/bist.h" + +#include <spd.h> + +#define SERIAL_DEV PNP_DEV(0x2e, LPC47M10X2_SP1) + +static inline int spd_read_byte(unsigned device, unsigned address) +{ + return smbus_read_byte(device, address); +} + +/* Cache-As-Ram compiles for this board, but with the CPUs I have, + * it halts on boot while in Local Apic ID negotiation. + */ + +#if CONFIG_CACHE_AS_RAM +#define BOARD_MAIN(x) void main(x) +#define early_mtrr_init() do {} while (0) +#else +#define BOARD_MAIN(x) static void main(x) +#endif + +#include "northbridge/intel/e7505/raminit.c" +#include "northbridge/intel/e7505/reset_test.c" +#include "lib/generic_sdram.c" + +// This function MUST appear last (ROMCC limitation) +BOARD_MAIN(unsigned long bist) +{ + static const struct mem_controller memctrl[] = { + { + .d0 = PCI_DEV(0, 0, 0), + .d0f1 = PCI_DEV(0, 0, 1), + .channel0 = { 0x50, 0x52, 0, 0 }, + .channel1 = { 0x51, 0x53, 0, 0 }, + }, + }; + + if (bist == 0) { + // Skip this if there was a built in self test failure + early_mtrr_init(); + enable_lapic(); + } + + // Get the serial port running and print a welcome banner + lpc47m10x_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE); + console_init(); + + // Halt if there was a built in self test failure + report_bist_failure(bist); + + // If this is a warm boot, some initialization can be skipped + if (!bios_reset_detected()) { + enable_smbus(); + sdram_initialize(ARRAY_SIZE(memctrl), memctrl); + } + + // NOTE: ROMCC dies with an internal compiler error + // if the following line is removed. + print_debug("SDRAM is up.\r\n"); + +} |