diff options
Diffstat (limited to 'qemu/roms/openbios/utils/devbios/pcisets.c')
-rw-r--r-- | qemu/roms/openbios/utils/devbios/pcisets.c | 630 |
1 files changed, 630 insertions, 0 deletions
diff --git a/qemu/roms/openbios/utils/devbios/pcisets.c b/qemu/roms/openbios/utils/devbios/pcisets.c new file mode 100644 index 000000000..91b9e0ea0 --- /dev/null +++ b/qemu/roms/openbios/utils/devbios/pcisets.c @@ -0,0 +1,630 @@ +/* + * OpenBIOS - free your system! + * ( firmware/flash device driver for Linux ) + * + * pcisets.c - support functions to map flash devices to kernel space + * + * This program is part of a free implementation of the IEEE 1275-1994 + * Standard for Boot (Initialization Configuration) Firmware. + * + * Copyright (C) 1998-2004 Stefan Reinauer, <stepan@openbios.org> + * + * 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 <linux/config.h> +#include <linux/version.h> +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0) +#ifdef MODVERSIONS +#include <linux/modversions.h> +#endif +#endif +#include <linux/pci.h> +#include <linux/types.h> +#include <linux/ioport.h> +#include <asm/io.h> +#ifdef __alpha__ +#include <asm/hwrpb.h> +#endif + +#include "bios.h" +#include "flashchips.h" +#include "pcisets.h" +#include "programming.h" + +#ifdef CONFIG_PCI +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,10) +#define pci_find_class pci_get_class +#endif + +#define pci_id(dev) ((dev->vendor<<16) | (dev->device)) +struct pci_dev *hostbridge=NULL; +static unsigned char pci_dummy[4]; + +/* + * ****************************************** + * + * own pci/shadow handling; We can't use + * the PCI bios here as it would sweep + * itself out! + * + * ****************************************** + */ + +static int pci_read(struct pci_dev *dev, unsigned char where) +{ + if (!dev) return 0; + + outl((0x80000000 | (dev->bus->number << 16) | (dev->devfn << 8) | + (where & ~3)), 0xCF8); + mb(); + return inb(0xCFC + (where&3)); +} + +static void pci_write(struct pci_dev *dev, unsigned char where, unsigned char value) +{ + if (!dev) return; + outl((0x80000000 | (dev->bus->number << 16) | (dev->devfn << 8) | + (where & ~3)), 0xCF8); + mb(); + outb(value, 0xCFC + (where&3)); +} + +/* + * standard system firmware adress emitter + */ + +static int system_memarea(unsigned long *address, unsigned long *size, + struct pci_dev *dev) +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) + const struct pci_driver *drv; + drv = pci_dev_driver(dev); +#endif +#ifndef __alpha__ + *address=0xffe00000; + *size=2048*1024; +#else + *address=0xfffffffffc000000; + *size=512*1024; +#endif + printk(KERN_INFO "BIOS: Probing system firmware with " + "%ldk rom area @0x%lx (%04x:%04x)\n", + (*size>>10), *address, dev->vendor, dev->device ); +#ifdef CONFIG_PCI_NAMES +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) + if (drv) printk(KERN_INFO "BIOS: System device is %s\n", drv->name); +#else + printk(KERN_INFO "BIOS: System device is %s\n", dev->name); +#endif +#endif + return 0; +} + +static int memarea_256k(unsigned long *address, unsigned long *size, + struct pci_dev *dev) +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) + const struct pci_driver *drv; + drv = pci_dev_driver(dev); +#endif + *address=0xfffc0000; + *size=256*1024; + printk(KERN_INFO "BIOS: Probing system firmware with " + "%ldk rom area @0x%lx (%04x:%04x)\n", + (*size>>10), *address, dev->vendor, dev->device ); +#ifdef CONFIG_PCI_NAMES +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0) + if (drv) printk(KERN_INFO "BIOS: System device is %s\n", drv->name); +#else + printk(KERN_INFO "BIOS: System device is %s\n", dev->name); +#endif +#endif + return 0; +} + +/* + * standard address emitter for normal pci devices + */ + +static int default_memarea(unsigned long *address, unsigned long *size, + struct pci_dev *dev) +{ +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) + *address=dev->resource[PCI_ROM_RESOURCE].start; + *size=dev->resource[PCI_ROM_RESOURCE].end - *address + 1; +#else + *address=0xdeadbeef; + *size=0x00000000; +#endif + if (*address && (signed long)*address!=-1 ) { + printk (KERN_DEBUG "BIOS: Probing PCI device %02x:%02x.%01x " + "with %ldk rom area @ 0x%lx\n", + dev->bus->number, PCI_SLOT(dev->devfn), + PCI_FUNC(dev->devfn), + (*size>>10), *address); + return 1; + } + *address=0xdeadbeef; + *size=0x00000000; + return 0; +} + +#ifdef __alpha__ +void probe_alphafw(void) +{ + switch(hwrpb->sys_type) { + case ST_DEC_EB164: + /* Fall through */ + break; + case ST_DTI_RUFFIAN: + /* case ST_DEC_TSUNAMI: // This crashes for whatever reason */ + probe_pcibus(); + return; + default: + printk(KERN_INFO "BIOS: unsupported alpha motherboard.\n"); + return; + } + + /* LX164 has system variation 0x2000 */ + if (hwrpb->sys_variation == 0x2000) + printk(KERN_INFO "BIOS: LX164 detected\n"); + else + printk(KERN_INFO "BIOS: EB164 board detected. Sys_var=0x%lx\n", + hwrpb->sys_variation); + + flashdevices[flashcount].data=(void *)0xfff80000; + flash_probe_area(0xfff80000, 512*1024, 0); +} +#endif + +#if LINUX_VERSION_CODE < KERNEL_VERSION(2,4,0) +#define pci_for_each_dev(dev) \ + for(dev = pci_devices->next; dev != pci_devices; dev = dev->next) +#endif +#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,74) +#define pci_for_each_dev(dev) \ + while ((dev = pci_find_device(PCI_ANY_ID, PCI_ANY_ID, dev))) +#endif + +#define DEVICE(x) devices[g].pcidevs[x] +void probe_pcibus(void) +{ + struct pci_dev *dev=NULL; + unsigned int g=0, d, map_always=0; + unsigned long addr, size; + + /* Look whether we find something supported */ + pci_for_each_dev(dev) { + /* Search all device groups */ + for (g=0; DEVICE(0); g++ ) { + /* Search all devices in group */ + for (d=0; DEVICE(d) && DEVICE(d) != pci_id(dev); d++); + if(DEVICE(d) == pci_id(dev)) + break; + } + + flashdevices[flashcount].idx=g; + flashdevices[flashcount].data=dev; + + map_always=devices[g].memarea(&addr, &size, dev); +#ifdef DEBUG_PCI + printk(KERN_INFO "BIOS: device=%x, cs=%d addr=%lx, size=%ld\n", + pci_id(dev),g, addr,size); +#endif + if(!size) + continue; + + flash_probe_area(addr, size, map_always); + } +} +#undef DEVICE + +/* Intel 430, 440, 450 PCI Chipsets */ + +#define CURRENT ((struct pci_dev *)flashdevices[currflash].data) +static int gporeg_save; +static void intel4x0_activate(void) +{ +#ifdef __ABIT_BE6II_v11__ +#define GPONUM 26 +#define GPOREG_OFFSET 0x34 + register unsigned int gporeg; + /* Read Bus 0, Dev 7, Func 3, Reg 40-44 (Power Managment Base Address) */ + outl (0x80003B40, 0x0CF8); + /* calc General Purpose Output Register I/O port address */ + gporeg = (0xFFFFFFFE & inl (0x0CFC)) + GPOREG_OFFSET; + + /* Set GPO26 to 0 */ + gporeg_save=inl(gporeg); + printk(KERN_DEBUG "BIOS: GPOREG=0x%08x, mask=0x%x, new=0x%x\n",gporeg_save, (~(1<<GPONUM)), gporeg_save&(~(1<<GPONUM))); + outl (gporeg_save&(~(1<<GPONUM)), gporeg); +#undef GPOREG_OFFSET +#endif + + pci_dummy[0]=pci_read(CURRENT, 0x4e); + pci_dummy[1]=pci_read(CURRENT, 0x4f); + + /* Write and 128k enable */ + pci_dummy[2]=0x44; //0xC4 + + if (CURRENT->device < 0x7000) { + /* enable 512k */ + pci_dummy[2]|=0x80; + } else { + /* enable 1M */ + pci_write(CURRENT, 0x4f, pci_dummy[1] | 0x02); + } + + pci_write(CURRENT, 0x4e, pci_dummy[0] | pci_dummy[2]); + + // printk(KERN_DEBUG "BIOS: isa bridge cfg is 0x%02x\n", pci_dummy[0]); +} + +static void intel4x0_deactivate(void) +{ +#ifdef __ABIT_BE6II_v11__ +#define GPOREG_OFFSET 0x34 + register unsigned long gporeg; + + /* Read Bus 0, Dev 7, Func 3, Reg 40-44 (Power Managment Base Address) */ + outl (0x80003B40, 0x0CF8); + /* calc General Purpose Output Register I/O port address */ + gporeg = (0xFFFFFFFE & inl (0x0CFC)) + GPOREG_OFFSET; + + /* Reset GBO26 */ + outl (gporeg_save, gporeg); +#undef GPOREG_OFFSET +#endif + pci_write(CURRENT, 0x4e, pci_dummy[0]); + pci_write(CURRENT, 0x4f, pci_dummy[1]); +} + +/* preliminary support for Intel 830 mobile chipset. untested!! */ + +static void intel8x0_activate(void) +{ + pci_dummy[0]=pci_read(CURRENT, 0x4e); + pci_dummy[1]=pci_read(CURRENT, 0xe3); + pci_write(CURRENT, 0x4e, pci_dummy[0] | 0x01); + pci_write(CURRENT, 0xe3, pci_dummy[1] | 0xC0); + + // We don't have to change FWH_DEC_EN1, as it decodes + // all memory areas to the FWH per default. + // We try it anyways. + + // FWH_DEC_EN1: isabridge, 0xe3, 8bit, default 0xff. + // FWH_SEL1: isabridge, 0xe8, 32bit, default 0x00112233 (??) + + //printk(KERN_DEBUG "BIOS: BIOS_CNTL is 0x%02x\n", pci_dummy[0]); + //printk(KERN_DEBUG "BIOS: FWH_DEC_EN1 is 0x%02x\n", pci_dummy[1]); +} + +static void intel8x0_deactivate(void) +{ + pci_write(CURRENT, 0x4e, pci_dummy[0]); + pci_write(CURRENT, 0xe3, pci_dummy[1]); +} + +/* AMD 760/756/751 & VIA (M)VP3 */ + +static void amd7xx_activate(void) +{ + pci_dummy[0]=pci_read(CURRENT, 0x40); /* IO Control 1 */ + pci_dummy[1]=pci_read(CURRENT, 0x43); /* SEGEN */ + + pci_write(CURRENT, 0x40, pci_dummy[0] | 0x01); + pci_write(CURRENT, 0x43, pci_dummy[1] | 0x80); +} + +static void amd7xx_deactivate(void) +{ + pci_write(CURRENT, 0x43, pci_dummy[1]); + pci_write(CURRENT, 0x40, pci_dummy[0]); +} + +static void viamvp3_activate(void) +{ + hostbridge = pci_find_class(PCI_CLASS_BRIDGE_HOST<<8,NULL); + if (!hostbridge) + return; + pci_dummy[0]=pci_read(hostbridge,0x52); + pci_write(hostbridge, 0x52, pci_dummy[0] & 0xcf); + pci_dummy[1]=pci_read(hostbridge, 0x63); + pci_write(hostbridge, 0x63, pci_dummy[1] & 0x0f); + pci_dummy[2]=pci_read(CURRENT,0x43); + pci_write(CURRENT, 0x43, pci_dummy[2] |0xF8); + + pci_write(CURRENT, 0x40, pci_read(CURRENT,0x40) | 0x01); +} + +static void viamvp3_deactivate(void) +{ + if (!hostbridge) + return; + pci_write(CURRENT, 0x40, pci_read(CURRENT,0x40) & 0xfe); + pci_write(hostbridge, 0x63, pci_dummy[1]); + pci_write(hostbridge, 0x52, pci_dummy[0]); + pci_write(CURRENT, 0x43, pci_dummy[2]); +} + +/* SiS works with 530/5595 chipsets */ + +static void sis_activate(void) +{ + char b; + hostbridge = pci_find_class(PCI_CLASS_BRIDGE_HOST<<8,NULL); + if (!hostbridge) + return; + + pci_dummy[0]=pci_read(hostbridge, 0x76); + pci_dummy[1]=readb(0x51); + pci_dummy[2]=pci_read(CURRENT, 0x40); + pci_dummy[3]=pci_read(CURRENT, 0x45); + + /* disable shadow */ + pci_write(hostbridge, 0x76, 0x00); + /* disable cache */ + writeb(pci_dummy[1] & 0x7f, 0x51); + + /* Enable 0xFFF8000~0xFFFF0000 decoding on SiS 540/630 */ + pci_write(CURRENT, 0x40, pci_dummy[2]|0x0b); + /* Flash write enable on SiS 540/630 */ + pci_write(CURRENT, 0x45, pci_dummy[3]|0x40); + + /* The same thing on SiS 950 SuperIO side */ + outb(0x87, 0x2e); + outb(0x01, 0x2e); + outb(0x55, 0x2e); + outb(0x55, 0x2e); + if (inb(0x2f) != 0x87) { + /* printf("Can not access SiS 950\n"); */ + return; + } + + outb(0x24, 0x2e); + b = inb(0x2f) | 0xfc; + outb(0x24, 0x2e); + outb(b, 0x2f); + outb(0x02, 0x2e); + outb(0x02, 0x2f); +} + +static void sis_deactivate(void) +{ + if (!hostbridge) + return; + + /* Restore PCI Registers */ + pci_write(hostbridge, 0x76, pci_dummy[0]); + pci_write(CURRENT, 0x45, pci_dummy[2]); + pci_write(CURRENT, 0x45, pci_dummy[3]); + /* restore cache to original status */ + writeb(pci_dummy[1], 0x51); +} + +/* UMC 486 Chipset 8881/886a */ + +static void umc_activate(void) +{ + hostbridge = pci_find_class(PCI_CLASS_BRIDGE_HOST<<8,NULL); + if (!hostbridge) + return; + + pci_dummy[0]=pci_read(hostbridge, 0x54); + pci_dummy[1]=pci_read(hostbridge, 0x55); + + pci_write(hostbridge, 0x54, 0x00); + pci_write(hostbridge, 0x55, 0x40); + + pci_write(CURRENT,0x47, pci_read(CURRENT,0x47) & ~0x40); +} + +static void umc_deactivate(void) +{ + if (!hostbridge) + return; + + pci_write(CURRENT, 0x47, pci_read(CURRENT,0x47) | 0x40); + + pci_write(hostbridge, 0x54, pci_dummy[0]); + pci_write(hostbridge, 0x55, pci_dummy[1]); +} + +/* CS5530 functions */ + +static void cs5530_activate(void) +{ + /* Save modified registers for later reset */ + pci_dummy[0]=pci_read(CURRENT,0x52); + pci_dummy[1]=pci_read(CURRENT,0x5b); + + /* enable rom write access */ + pci_write(CURRENT, 0x52, pci_dummy[0]|0x06); + + /* enable rom positive decode */ + // pci_write(CURRENT,0x5b, pci_dummy[1]|0x20); + // pci_write(CURRENT,0x52, pci_read(CURRENT,0x52)|0x01); +} + +static void cs5530_deactivate(void) +{ + pci_write(CURRENT, 0x52, pci_dummy[0]); + // pci_write(CURRENT, 0x5b, pci_dummy[1]); +} + +/* Reliance / ServerWorks */ + +static void reliance_activate(void) +{ + pci_dummy[0]=pci_read(CURRENT,0x41); + pci_dummy[1]=pci_read(CURRENT,0x70); + pci_dummy[2]=inb(0xc6f); + + /* Enable 512k */ + pci_write(CURRENT, 0x41, pci_dummy[0] | 0x02); + /* Enable 4MB */ + pci_write(CURRENT, 0x70, pci_dummy[1] | 0x80); + /* Enable flash write */ + outb(pci_dummy[2] | 0x40, 0xc6f); +} + +static void reliance_deactivate(void) +{ + pci_write(CURRENT, 0x41, pci_dummy[0]); + pci_write(CURRENT, 0x70, pci_dummy[1]); + outb(pci_dummy[2], 0xc6f); +} + +/* ALi Methods - untested */ +static void ali_activate(void) +{ + pci_dummy[0]=pci_read(CURRENT, 0x47); + pci_dummy[1]=pci_read(CURRENT, 0x79); + pci_dummy[2]=pci_read(CURRENT, 0x7f); + + /* write enable, 256k enable */ +#ifdef OLD_ALi + pci_write(CURRENT, 0x47, pci_dummy[0]|0x47); +#else + pci_write(CURRENT, 0x47, pci_dummy[0]|0x43); +#endif + + /* M1543C rev B1 supports 512k. Register reserved before */ +#ifdef OLD_ALi + pci_write(CURRENT, 0x79, pci_dummy[1]|0x10); + pci_write(CURRENT, 0x7f, pci_dummy[2]|0x01); +#else + pci_write(CURRENT, 0x7b, pci_dummy[1]|0x10); +#endif +} + +static void ali_deactivate(void) +{ + pci_write(CURRENT, 0x47, pci_dummy[0]); + pci_write(CURRENT, 0x79, pci_dummy[1]); + pci_write(CURRENT, 0x7f, pci_dummy[2]); +} + +/* Default routines. Use these if nothing else works */ +#if 0 +static unsigned int def_addr; +#endif +static void default_activate(void) +{ +#if 0 && LINUX_VERSION_CODE > KERNEL_VERSION(2,4,0) + struct resource *r; + + r=&CURRENT->resource[PCI_ROM_RESOURCE]; + + r->flags |= PCI_ROM_ADDRESS_ENABLE; + r->flags &= ~(IORESOURCE_READONLY|IORESOURCE_CACHEABLE); + pci_read_config_dword(CURRENT, CURRENT->rom_base_reg, &def_addr); + if (def_addr) + pci_write_config_dword (CURRENT, CURRENT->rom_base_reg, + def_addr|PCI_ROM_ADDRESS_ENABLE); +#endif +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) + long ret; + + if (pci_enable_device(CURRENT)) + return; + + pci_write_config_dword (CURRENT, CURRENT->rom_base_reg, + pci_resource_start(CURRENT, PCI_ROM_RESOURCE)| + PCI_ROM_ADDRESS_ENABLE); + + ret=(long)request_mem_region( pci_resource_start(CURRENT, + PCI_ROM_RESOURCE), pci_resource_len(CURRENT, + PCI_ROM_RESOURCE), "Firmware memory"); + if (!ret) + printk (KERN_ERR "BIOS: cannot reserve MMROM region " + "0x%lx+0x%lx\n", + pci_resource_start(CURRENT, PCI_ROM_RESOURCE), + pci_resource_len(CURRENT, PCI_ROM_RESOURCE)); + else + printk (KERN_INFO "BIOS: mapped rom region to 0x%lx\n", ret); +#endif +} + +static void default_deactivate(void) +{ +#if 0 && LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) + struct resource *r; + r=&CURRENT->resource[PCI_ROM_RESOURCE]; + r->flags &= ~PCI_ROM_ADDRESS_ENABLE; + r->flags |= (IORESOURCE_READONLY|IORESOURCE_CACHEABLE); + pci_write_config_dword (CURRENT, CURRENT->rom_base_reg, def_addr); +#endif +#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,0) + release_mem_region(pci_resource_start(CURRENT, PCI_ROM_RESOURCE), + pci_resource_len(CURRENT, PCI_ROM_RESOURCE)); +#endif +} + +const struct flashdev devices[] = { + /* Intel 4x0 chipsets */ + { (int[]) { 0x8086122e, 0x80861234, 0x80867000, 0x80867110, + 0x80867198, 0 }, + intel4x0_activate, intel4x0_deactivate, system_memarea }, + + /* Intel 8x0 chipsets */ + { (int[]) { 0x80862410, 0x80862420, 0x80862440, 0x8086244c, + 0x80862480, 0x8086248c, 0x80867600, 0 }, + intel8x0_activate, intel8x0_deactivate, system_memarea }, + + /* Irongate 75x, AMD-76xMP(X), VT8231/3 */ + { (int[]) { 0x10227400, 0x10227408, 0x10227410, 0x10227440, + 0x11068231, 0x11063074, 0 }, + amd7xx_activate, amd7xx_deactivate, system_memarea }, + + /* AMD Hammer (thor chipset) */ + { (int[]) { 0x10227468, 0 }, + amd7xx_activate, amd7xx_deactivate, system_memarea }, + + /* VIA (M)VP3, VT82C686 [Apollo Super South] */ + { (int[]) { 0x11060586, 0x11060596, 0x11060686, 0 }, + viamvp3_activate, viamvp3_deactivate, memarea_256k }, + + /* UMC */ + { (int[]) { 0x1060886a, 0x10600886, 0x1060e886, 0x10608886, 0 }, + umc_activate, umc_deactivate, system_memarea }, + + /* SiS */ + { (int[]) { 0x10390008, 0x10390018, 0 }, + sis_activate, sis_deactivate, system_memarea }, + + /* OPTi */ + { (int[]) { 0x1045c558, 0 }, + default_activate, default_deactivate, system_memarea }, + + /* NSC CS5530(A) */ + { (int[]) { 0x10780100, 0 }, + cs5530_activate, cs5530_deactivate, memarea_256k }, + + /* Reliance/ServerWorks NB6xxx */ + { (int[]) { 0x11660200, 0 }, + reliance_activate, reliance_deactivate, system_memarea }, + + /* ALi */ + { (int[]) { 0x10b91523, 0x10b91533, 0x10b91543, 0 }, + ali_activate, ali_deactivate, system_memarea }, + + { (int[]) { 0x00000000 }, + default_activate, default_deactivate, default_memarea } +}; + +#endif /* CONFIG_PCI */ + |