/* * QEMU GT64120 PCI host * * Copyright (c) 2006,2007 Aurelien Jarno * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "vl.h" typedef target_phys_addr_t pci_addr_t; #include "pci_host.h" #define GT_REGS (0x1000 >> 2) /* CPU Configuration */ #define GT_CPU (0x000 >> 2) #define GT_MULTI (0x120 >> 2) /* CPU Address Decode */ #define GT_SCS10LD (0x008 >> 2) #define GT_SCS10HD (0x010 >> 2) #define GT_SCS32LD (0x018 >> 2) #define GT_SCS32HD (0x020 >> 2) #define GT_CS20LD (0x028 >> 2) #define GT_CS20HD (0x030 >> 2) #define GT_CS3BOOTLD (0x038 >> 2) #define GT_CS3BOOTHD (0x040 >> 2) #define GT_PCI0IOLD (0x048 >> 2) #define GT_PCI0IOHD (0x050 >> 2) #define GT_PCI0M0LD (0x058 >> 2) #define GT_PCI0M0HD (0x060 >> 2) #define GT_ISD (0x068 >> 2) #define GT_PCI0M1LD (0x080 >> 2) #define GT_PCI0M1HD (0x088 >> 2) #define GT_PCI1IOLD (0x090 >> 2) #define GT_PCI1IOHD (0x098 >> 2) #define GT_PCI1M0LD (0x0a0 >> 2) #define GT_PCI1M0HD (0x0a8 >> 2) #define GT_PCI1M1LD (0x0b0 >> 2) #define GT_PCI1M1HD (0x0b8 >> 2) #define GT_PCI1M1LD (0x0b0 >> 2) #define GT_PCI1M1HD (0x0b8 >> 2) #define GT_SCS10AR (0x0d0 >> 2) #define GT_SCS32AR (0x0d8 >> 2) #define GT_CS20R (0x0e0 >> 2) #define GT_CS3BOOTR (0x0e8 >> 2) #define GT_PCI0IOREMAP (0x0f0 >> 2) #define GT_PCI0M0REMAP (0x0f8 >> 2) #define GT_PCI0M1REMAP (0x100 >> 2) #define GT_PCI1IOREMAP (0x108 >> 2) #define GT_PCI1M0REMAP (0x110 >> 2) #define GT_PCI1M1REMAP (0x118 >> 2) /* CPU Error Report */ #define GT_CPUERR_ADDRLO (0x070 >> 2) #define GT_CPUERR_ADDRHI (0x078 >> 2) #define GT_CPUERR_DATALO (0x128 >> 2) /* GT-64120A only */ #define GT_CPUERR_DATAHI (0x130 >> 2) /* GT-64120A only */ #define GT_CPUERR_PARITY (0x138 >> 2) /* GT-64120A only */ /* CPU Sync Barrier */ #define GT_PCI0SYNC (0x0c0 >> 2) #define GT_PCI1SYNC (0x0c8 >> 2) /* SDRAM and Device Address Decode */ #define GT_SCS0LD (0x400 >> 2) #define GT_SCS0HD (0x404 >> 2) #define GT_SCS1LD (0x408 >> 2) #define GT_SCS1HD (0x40c >> 2) #define GT_SCS2LD (0x410 >> 2) #define GT_SCS2HD (0x414 >> 2) #define GT_SCS3LD (0x418 >> 2) #define GT_SCS3HD (0x41c >> 2) #define GT_CS0LD (0x420 >> 2) #define GT_CS0HD (0x424 >> 2) #define GT_CS1LD (0x428 >> 2) #define GT_CS1HD (0x42c >> 2) #define GT_CS2LD (0x430 >> 2) #define GT_CS2HD (0x434 >> 2) #define GT_CS3LD (0x438 >> 2) #define GT_CS3HD (0x43c >> 2) #define GT_BOOTLD (0x440 >> 2) #define GT_BOOTHD (0x444 >> 2) #define GT_ADERR (0x470 >> 2) /* SDRAM Configuration */ #define GT_SDRAM_CFG (0x448 >> 2) #define GT_SDRAM_OPMODE (0x474 >> 2) #define GT_SDRAM_BM (0x478 >> 2) #define GT_SDRAM_ADDRDECODE (0x47c >> 2) /* SDRAM Parameters */ #define GT_SDRAM_B0 (0x44c >> 2) #define GT_SDRAM_B1 (0x450 >> 2) #define GT_SDRAM_B2 (0x454 >> 2) #define GT_SDRAM_B3 (0x458 >> 2) /* Device Parameters */ #define GT_DEV_B0 (0x45c >> 2) #define GT_DEV_B1 (0x460 >> 2) #define GT_DEV_B2 (0x464 >> 2) #define GT_DEV_B3 (0x468 >> 2) #define GT_DEV_BOOT (0x46c >> 2) /* ECC */ #define GT_ECC_ERRDATALO (0x480 >> 2) /* GT-64120A only */ #define GT_ECC_ERRDATAHI (0x484 >> 2) /* GT-64120A only */ #define GT_ECC_MEM (0x488 >> 2) /* GT-64120A only */ #define GT_ECC_CALC (0x48c >> 2) /* GT-64120A only */ #define GT_ECC_ERRADDR (0x490 >> 2) /* GT-64120A only */ /* DMA Record */ #define GT_DMA0_CNT (0x800 >> 2) #define GT_DMA1_CNT (0x804 >> 2) #define GT_DMA2_CNT (0x808 >> 2) #define GT_DMA3_CNT (0x80c >> 2) #define GT_DMA0_SA (0x810 >> 2) #define GT_DMA1_SA (0x814 >> 2) #define GT_DMA2_SA (0x818 >> 2) #define GT_DMA3_SA (0x81c >> 2) #define GT_DMA0_DA (0x820 >> 2) #define GT_DMA1_DA (0x824 >> 2) #define GT_DMA2_DA (0x828 >> 2) #define GT_DMA3_DA (0x82c >> 2) #define GT_DMA0_NEXT (0x830 >> 2) #define GT_DMA1_NEXT (0x834 >> 2) #define GT_DMA2_NEXT (0x838 >> 2) #define GT_DMA3_NEXT (0x83c >> 2) #define GT_DMA0_CUR (0x870 >> 2) #define GT_DMA1_CUR (0x874 >> 2) #define GT_DMA2_CUR (0x878 >> 2) #define GT_DMA3_CUR (0x87c >> 2) /* DMA Channel Control */ #define GT_DMA0_CTRL (0x840 >> 2) #define GT_DMA1_CTRL (0x844 >> 2) #define GT_DMA2_CTRL (0x848 >> 2) #define GT_DMA3_CTRL (0x84c >> 2) /* DMA Arbiter */ #define GT_DMA_ARB (0x860 >> 2) /* Timer/Counter */ #define GT_TC0 (0x850 >> 2) #define GT_TC1 (0x854 >> 2) #define GT_TC2 (0x858 >> 2) #define GT_TC3 (0x85c >> 2) #define GT_TC_CONTROL (0x864 >> 2) /* PCI Internal */ #define GT_PCI0_CMD (0xc00 >> 2) #define GT_PCI0_TOR (0xc04 >> 2) #define GT_PCI0_BS_SCS10 (0xc08 >> 2) #define GT_PCI0_BS_SCS32 (0xc0c >> 2) #define GT_PCI0_BS_CS20 (0xc10 >> 2) #define GT_PCI0_BS_CS3BT (0xc14 >> 2) #define GT_PCI1_IACK (0xc30 >> 2) #define GT_PCI0_IACK (0xc34 >> 2) #define GT_PCI0_BARE (0xc3c >> 2) #define GT_PCI0_PREFMBR (0xc40 >> 2) #define GT_PCI0_SCS10_BAR (0xc48 >> 2) #define GT_PCI0_SCS32_BAR (0xc4c >> 2) #define GT_PCI0_CS20_BAR (0xc50 >> 2) #define GT_PCI0_CS3BT_BAR (0xc54 >> 2) #define GT_PCI0_SSCS10_BAR (0xc58 >> 2) #define GT_PCI0_SSCS32_BAR (0xc5c >> 2) #define GT_PCI0_SCS3BT_BAR (0xc64 >> 2) #define GT_PCI1_CMD (0xc80 >> 2) #define GT_PCI1_TOR (0xc84 >> 2) #define GT_PCI1_BS_SCS10 (0xc88 >> 2) #define GT_PCI1_BS_SCS32 (0xc8c >> 2) #define GT_PCI1_BS_CS20 (0xc90 >> 2) #define GT_PCI1_BS_CS3BT (0xc94 >> 2) #define GT_PCI1_BARE (0xcbc >> 2) #define GT_PCI1_PREFMBR (0xcc0 >> 2) #define GT_PCI1_SCS10_BAR (0xcc8 >> 2) #define GT_PCI1_SCS32_BAR (0xccc >> 2) #define GT_PCI1_CS20_BAR (0xcd0 >> 2) #define GT_PCI1_CS3BT_BAR (0xcd4 >> 2) #define GT_PCI1_SSCS10_BAR (0xcd8 >> 2) #define GT_PCI1_SSCS32_BAR (0xcdc >> 2) #define GT_PCI1_SCS3BT_BAR (0xce4 >> 2) #define GT_PCI1_CFGADDR (0xcf0 >> 2) #define GT_PCI1_CFGDATA (0xcf4 >> 2) #define GT_PCI0_CFGADDR (0xcf8 >> 2) #define GT_PCI0_CFGDATA (0xcfc >> 2) /* Interrupts */ #define GT_INTRCAUSE (0xc18 >> 2) #define GT_INTRMASK (0xc1c >> 2) #define GT_PCI0_ICMASK (0xc24 >> 2) #define GT_PCI0_SERR0MASK (0xc28 >> 2) #define GT_CPU_INTSEL (0xc70 >> 2) #define GT_PCI0_INTSEL (0xc74 >> 2) #define GT_HINTRCAUSE (0xc98 >> 2) #define GT_HINTRMASK (0xc9c >> 2) #define GT_PCI0_HICMASK (0xca4 >> 2) #define GT_PCI1_SERR1MASK (0xca8 >> 2) typedef PCIHostState GT64120PCIState; typedef struct GT64120State { GT64120PCIState *pci; uint32_t regs[GT_REGS]; target_phys_addr_t PCI0IO_start; target_phys_addr_t PCI0IO_length; } GT64120State; static void gt64120_pci_mapping(GT64120State *s) { /* Update IO mapping */ if ((s->regs[GT_PCI0IOLD] & 0x7f) <= s->regs[GT_PCI0IOHD]) { /* Unmap old IO address */ if (s->PCI0IO_length) { cpu_register_physical_memory(s->PCI0IO_start, s->PCI0IO_length, IO_MEM_UNASSIGNED); } /* Map new IO address */ s->PCI0IO_start = s->regs[GT_PCI0IOLD] << 21; s->PCI0IO_length = ((s->regs[GT_PCI0IOHD] + 1) - (s->regs[GT_PCI0IOLD] & 0x7f)) << 21; isa_mem_base = s->PCI0IO_start; isa_mmio_init(s->PCI0IO_start, s->PCI0IO_length); } } static void gt64120_writel (void *opaque, target_phys_addr_t addr, uint32_t val) { GT64120State *s = opaque; uint32_t saddr; #ifdef TARGET_WORDS_BIGENDIAN val = bswap32(val); #endif saddr = (addr & 0xfff) >> 2; switch (saddr) { /* CPU Configuration */ case GT_CPU: s->regs[GT_CPU] = val; break; case GT_MULTI: /* Read-only register as only one GT64xxx is present on the CPU bus */ break; /* CPU Address Decode */ case GT_PCI0IOLD: s->regs[GT_PCI0IOLD] = val & 0x00007fff; s->regs[GT_PCI0IOREMAP] = val & 0x000007ff; gt64120_pci_mapping(s); break; case GT_PCI0M0LD: s->regs[GT_PCI0M0LD] = val & 0x00007fff; s->regs[GT_PCI0M0REMAP] = val & 0x000007ff; gt64120_pci_mapping(s); break; case GT_PCI0M1LD: s->regs[GT_PCI0M1LD] = val & 0x00007fff; s->regs[GT_PCI0M1REMAP] = val & 0x000007ff; gt64120_pci_mapping(s); break; case GT_PCI1IOLD: s->regs[GT_PCI1IOLD] = val & 0x00007fff; s->regs[GT_PCI1IOREMAP] = val & 0x000007ff; gt64120_pci_mapping(s); break; case GT_PCI1M0LD: s->regs[GT_PCI1M0LD] = val & 0x00007fff; s->regs[GT_PCI1M0REMAP] = val & 0x000007ff; gt64120_pci_mapping(s); break; case GT_PCI1M1LD: s->regs[GT_PCI1M1LD] = val & 0x00007fff; s->regs[GT_PCI1M1REMAP] = val & 0x000007ff; gt64120_pci_mapping(s); break; case GT_PCI0IOHD: case GT_PCI0M0HD: case GT_PCI0M1HD: case GT_PCI1IOHD: case GT_PCI1M0HD: case GT_PCI1M1HD: s->regs[saddr] = val & 0x0000007f; gt64120_pci_mapping(s); break; case GT_PCI0IOREMAP: case GT_PCI0M0REMAP: case GT_PCI0M1REMAP: case GT_PCI1IOREMAP: case GT_PCI1M0REMAP: case GT_PCI1M1REMAP: s->regs[saddr] = val & 0x000007ff; gt64120_pci_mapping(s); break; /* CPU Error Report */ case GT_CPUERR_ADDRLO: case GT_CPUERR_ADDRHI: case GT_CPUERR_DATALO: case GT_CPUERR_DATAHI: case GT_CPUERR_PARITY: /* Read-only registers, do nothing */ break; /* CPU Sync Barrier */ case GT_PCI0SYNC: case GT_PCI1SYNC: /* Read-only registers, do nothing */ break; /* ECC */ case GT_ECC_ERRDATALO: case GT_ECC_ERRDATAHI: case GT_ECC_MEM: case GT_ECC_CALC: case GT_ECC_ERRADDR: /* Read-only registers, do nothing */ break; /* PCI Internal */ case GT_PCI0_CMD: case GT_PCI1_CMD: s->regs[saddr] = val & 0x0401fc0f; break; case GT_PCI0_CFGADDR: s->pci->config_reg = val & 0x80fffffc; break; case GT_PCI0_CFGDATA: pci_host_data_writel(s->pci, 0, val); break; /* SDRAM Parameters */ case GT_SDRAM_B0: case GT_SDRAM_B1: case GT_SDRAM_B2: case GT_SDRAM_B3: /* We don't simulate electrical parameters of the SDRAM. Accept, but ignore the values. */ s->regs[saddr] = val; break; default: #if 0 printf ("gt64120_writel: Bad register offset 0x%x\n", (int)addr); #endif break; } } static uint32_t gt64120_readl (void *opaque, target_phys_addr_t addr) { GT64120State *s = opaque; uint32_t val; uint32_t saddr; val = 0; saddr = (addr & 0xfff) >> 2; switch (saddr) { /* CPU Configuration */ case GT_MULTI: /* Only one GT64xxx is present on the CPU bus, return the initial value */ val = s->regs[saddr]; break; /* CPU Error Report */ case GT_CPUERR_ADDRLO: case GT_CPUERR_ADDRHI: case GT_CPUERR_DATALO: case GT_CPUERR_DATAHI: case GT_CPUERR_PARITY: /* Emulated memory has no error, always return the initial values */ val = s->regs[saddr]; break; /* CPU Sync Barrier */ case GT_PCI0SYNC: case GT_PCI1SYNC: /* Reading those register should empty all FIFO on the PCI bus, which are not emulated. The return value should be a random value that should be ignored. */ val = 0xc000ffee; break; /* ECC */ case GT_ECC_ERRDATALO: case GT_ECC_ERRDATAHI: case GT_ECC_MEM: case GT_ECC_CALC: case GT_ECC_ERRADDR: /* Emulated memory has no error, always return the initial values */ val = s->regs[saddr]; break; case GT_CPU: case GT_PCI0IOLD: case GT_PCI0M0LD: case GT_PCI0M1LD: case GT_PCI1IOLD: case GT_PCI1M0LD: case GT_PCI1M1LD: case GT_PCI0IOHD: case GT_PCI0M0HD: case GT_PCI0M1HD: case GT_PCI1IOHD: case GT_PCI1M0HD: case GT_PCI1M1HD: case GT_PCI0_CMD: case GT_PCI1_CMD: case GT_PCI0IOREMAP: case GT_PCI0M0REMAP: case GT_PCI0M1REMAP: case GT_PCI1IOREMAP: case GT_PCI1M0REMAP: case GT_PCI1M1REMAP: val = s->regs[saddr]; break; case GT_PCI0_IACK: /* Read the IRQ number */ val = pic_read_irq(isa_pic); break; /* SDRAM Parameters */ case GT_SDRAM_B0: case GT_SDRAM_B1: case GT_SDRAM_B2: case GT_SDRAM_B3: /* We don't simulate electrical parameters of the SDRAM. Just return the last written value. */ val = s->regs[saddr]; break; /* PCI Internal */ case GT_PCI0_CFGADDR: val = s->pci->config_reg; break; case GT_PCI0_CFGDATA: val = pci_host_data_readl(s->pci, 0); break; default: val = s->regs[saddr]; #if 0 printf ("gt64120_readl: Bad register offset 0x%x\n", (int)addr); #endif break; } #ifdef TARGET_WORDS_BIGENDIAN return bswap32(val); #else return val; #endif } static CPUWriteMemoryFunc *gt64120_write[] = { >64120_writel, >64120_writel, >64120_writel, }; static CPUReadMemoryFunc *gt64120_read[] = { >64120_readl, >64120_readl, >64120_readl, }; static int pci_gt64120_map_irq(PCIDevice *pci_dev, int irq_num) { int slot; slot = (pci_dev->devfn >> 3); switch (slot) { /* PIIX4 USB */ case 10: return 3; /* AMD 79C973 Ethernet */ case 11: return 1; /* Crystal 4281 Sound */ case 12: return 2; /* PCI slot 1 to 4 */ case 18 ... 21: return ((slot - 18) + irq_num) & 0x03; /* Unknown device, don't do any translation */ default: return irq_num; } } extern PCIDevice *piix4_dev; static int pci_irq_levels[4]; static void pci_gt64120_set_irq(qemu_irq *pic, int irq_num, int level) { int i, pic_irq, pic_level; pci_irq_levels[irq_num] = level; /* now we change the pic irq level according to the piix irq mappings */ /* XXX: optimize */ pic_irq = piix4_dev->config[0x60 + irq_num]; if (pic_irq < 16) { /* The pic level is the logical OR of all the PCI irqs mapped to it */ pic_level = 0; for (i = 0; i < 4; i++) { if (pic_irq == piix4_dev->config[0x60 + i]) pic_level |= pci_irq_levels[i]; } qemu_set_irq(pic[pic_irq], pic_level); } } void gt64120_reset(void *opaque) { GT64120State *s = opaque; /* CPU Configuration */ #ifdef TARGET_WORDS_BIGENDIAN s->regs[GT_CPU] = 0x00000000; #else s->regs[GT_CPU] = 0x00001000; #endif s->regs[GT_MULTI] = 0x00000000; /* CPU Address decode FIXME: not complete*/ s->regs[GT_PCI0IOLD] = 0x00000080; s->regs[GT_PCI0IOHD] = 0x0000000f; s->regs[GT_PCI0M0LD] = 0x00000090; s->regs[GT_PCI0M0HD] = 0x0000001f; s->regs[GT_PCI0M1LD] = 0x00000790; s->regs[GT_PCI0M1HD] = 0x0000001f; s->regs[GT_PCI1IOLD] = 0x00000100; s->regs[GT_PCI1IOHD] = 0x0000000f; s->regs[GT_PCI1M0LD] = 0x00000110; s->regs[GT_PCI1M0HD] = 0x0000001f; s->regs[GT_PCI1M1LD] = 0x00000120; s->regs[GT_PCI1M1HD] = 0x0000002f; s->regs[GT_PCI0IOREMAP] = 0x00000080; s->regs[GT_PCI0M0REMAP] = 0x00000090; s->regs[GT_PCI0M1REMAP] = 0x00000790; s->regs[GT_PCI1IOREMAP] = 0x00000100; s->regs[GT_PCI1M0REMAP] = 0x00000110; s->regs[GT_PCI1M1REMAP] = 0x00000120; /* CPU Error Report */ s->regs[GT_CPUERR_ADDRLO] = 0x00000000; s->regs[GT_CPUERR_ADDRHI] = 0x00000000; s->regs[GT_CPUERR_DATALO] = 0xffffffff; s->regs[GT_CPUERR_DATAHI] = 0xffffffff; s->regs[GT_CPUERR_PARITY] = 0x000000ff; /* ECC */ s->regs[GT_ECC_ERRDATALO] = 0x00000000; s->regs[GT_ECC_ERRDATAHI] = 0x00000000; s->regs[GT_ECC_MEM] = 0x00000000; s->regs[GT_ECC_CALC] = 0x00000000; s->regs[GT_ECC_ERRADDR] = 0x00000000; /* SDRAM Parameters */ s->regs[GT_SDRAM_B0] = 0x00000005; s->regs[GT_SDRAM_B1] = 0x00000005; s->regs[GT_SDRAM_B2] = 0x00000005; s->regs[GT_SDRAM_B3] = 0x00000005; /* PCI Internal FIXME: not complete*/ #ifdef TARGET_WORDS_BIGENDIAN s->regs[GT_PCI0_CMD] = 0x00000000; s->regs[GT_PCI1_CMD] = 0x00000000; #else s->regs[GT_PCI0_CMD] = 0x00010001; s->regs[GT_PCI1_CMD] = 0x00010001; #endif s->regs[GT_PCI0_IACK] = 0x00000000; s->regs[GT_PCI1_IACK] = 0x00000000; gt64120_pci_mapping(s); } static uint32_t gt64120_read_config(PCIDevice *d, uint32_t address, int len) { uint32_t val = pci_default_read_config(d, address, len); #ifdef TARGET_WORDS_BIGENDIAN val = bswap32(val); #endif return val; } static void gt64120_write_config(PCIDevice *d, uint32_t address, uint32_t val, int len) { #ifdef TARGET_WORDS_BIGENDIAN val = bswap32(val); #endif pci_default_write_config(d, address, val, len); } PCIBus *pci_gt64120_init(qemu_irq *pic) { GT64120State *s; PCIDevice *d; int gt64120; s = qemu_mallocz(sizeof(GT64120State)); s->pci = qemu_mallocz(sizeof(GT64120PCIState)); gt64120_reset(s); s->pci->bus = pci_register_bus(pci_gt64120_set_irq, pci_gt64120_map_irq, pic, 144, 4); gt64120 = cpu_register_io_memory(0, gt64120_read, gt64120_write, s); cpu_register_physical_memory(0x1be00000LL, 0x1000, gt64120); d = pci_register_device(s->pci->bus, "GT64120 PCI Bus", sizeof(PCIDevice), 0, gt64120_read_config, gt64120_write_config); d->config[0x00] = 0xab; // vendor_id d->config[0x01] = 0x11; d->config[0x02] = 0x20; // device_id d->config[0x03] = 0x46; d->config[0x04] = 0x06; d->config[0x05] = 0x00; d->config[0x06] = 0x80; d->config[0x07] = 0xa2; d->config[0x08] = 0x10; d->config[0x09] = 0x00; d->config[0x0A] = 0x80; d->config[0x0B] = 0x05; d->config[0x0C] = 0x08; d->config[0x0D] = 0x40; d->config[0x0E] = 0x00; d->config[0x0F] = 0x00; d->config[0x17] = 0x08; d->config[0x1B] = 0x1c; d->config[0x1F] = 0x1f; d->config[0x23] = 0x14; d->config[0x27] = 0x14; d->config[0x3D] = 0x01; return s->pci->bus; }