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/*
* Copyright 2004 Tyan Computer
* by yhlu@tyan.com
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <device/pci_ops.h>
#include "chip.h"
/*
* How to use the onboard device driver for option rom execution:
*
* 1. You need to add the driver to your mainboard Config.lb:
*
* chip drivers/pci/onboard
* device pci x.0 on end
* register "rom_address" = "0xfff80000"
* end
* 2. Reduce the size of your normal (or fallback) image, by adding the
* following lines to your target Config.lb, after romimage "normal"
* # 48K for SCSI FW or ATI ROM
* option ROM_SIZE = 512*1024-48*1024
* 3. Create your vgabios.bin, for example using awardeco and put it in the
* directory of your target Config.lb. You can also read an option rom from
* a running system, but this is unreliable, as some option roms are changed
* during execution:
* # dd if=/dev/mem of=atix.rom skip=1536 count=96
* 4. After you built coreboot.rom, attach the option rom to your coreboot
* image:
* # cat ../atix.rom ./normal/coreboot.rom ./fallback/coreboot.rom > coreboot.rom
*
* Alternatively you can use the following script "nsxv" to build your image
* Usage:
* # ./nsxv s2850
*
* #!/bin/bash
* MBVENDOR=tyan
* MBMODEL=$1
* LBROOT=/home/yhlu/xx/xx
*
* echo $1
* date
*
* cd "$LBROOT/freebios2/targets"
* rm -rf "$MBVENDOR/$MBMODEL/$MBMODEL"
* ./buildtarget "$MBVENDOR/$MBMODEL" &> "$LBROOT/x_b.txt"
* cd "$MBVENDOR/$MBMODEL/$MBMODEL"
* #make clean
* eval make &> "$LBROOT/x_m.txt"
* if [ $? -eq 0 ]; then
* echo "ok."
* else
* echo "FAILED! Log excerpt:"
* tail -n 15 "$LBROOT/x_m.txt"
* exit
* fi
* cat ../atix.rom ./normal/coreboot.rom ./fallback/coreboot.rom > "$LBROOT/rom/"$MBMODEL"_coreboot.rom"
* cp -f "$LBROOT/rom/"$MBMODEL"_coreboot.rom" /home/yhlu/
*
* date
*
*/
static void onboard_enable(device_t dev)
{
struct drivers_pci_onboard_config *conf;
conf = dev->chip_info;
dev->rom_address = conf->rom_address;
}
struct chip_operations drivers_pci_onboard_ops = {
CHIP_NAME("Onboard PCI")
.enable_dev = onboard_enable,
};
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