From 77d4bc349abd61ba2e12327e40f95bfc4069f2a0 Mon Sep 17 00:00:00 2001 From: bellard Date: Wed, 26 May 2004 22:13:53 +0000 Subject: PowerPC prep/chrp/pmac support git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@863 c046a42c-6fe2-441c-8c8c-71466251a162 --- hw/pci.c | 300 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 300 insertions(+) (limited to 'hw/pci.c') diff --git a/hw/pci.c b/hw/pci.c index 651c01d..93d33d9 100644 --- a/hw/pci.c +++ b/hw/pci.c @@ -470,6 +470,259 @@ void piix3_init(void) piix3_reset(d); } +/* PREP pci init */ + +static inline void set_config(PCIBridge *s, target_phys_addr_t addr) +{ + int devfn, i; + + for(i = 0; i < 11; i++) { + if ((addr & (1 << (11 + i))) != 0) + break; + } + devfn = ((addr >> 8) & 7) | (i << 3); + s->config_reg = 0x80000000 | (addr & 0xfc) | (devfn << 8); +} + +static void PPC_PCIIO_writeb (target_phys_addr_t addr, uint32_t val) +{ + PCIBridge *s = &pci_bridge; + set_config(s, addr); + pci_data_write(s, addr, val, 1); +} + +static void PPC_PCIIO_writew (target_phys_addr_t addr, uint32_t val) +{ + PCIBridge *s = &pci_bridge; + set_config(s, addr); +#ifdef TARGET_WORDS_BIGENDIAN + val = bswap16(val); +#endif + pci_data_write(s, addr, val, 2); +} + +static void PPC_PCIIO_writel (target_phys_addr_t addr, uint32_t val) +{ + PCIBridge *s = &pci_bridge; + set_config(s, addr); +#ifdef TARGET_WORDS_BIGENDIAN + val = bswap32(val); +#endif + pci_data_write(s, addr, val, 4); +} + +static uint32_t PPC_PCIIO_readb (target_phys_addr_t addr) +{ + PCIBridge *s = &pci_bridge; + uint32_t val; + set_config(s, addr); + val = pci_data_read(s, addr, 1); + return val; +} + +static uint32_t PPC_PCIIO_readw (target_phys_addr_t addr) +{ + PCIBridge *s = &pci_bridge; + uint32_t val; + set_config(s, addr); + val = pci_data_read(s, addr, 2); +#ifdef TARGET_WORDS_BIGENDIAN + val = bswap16(val); +#endif + return val; +} + +static uint32_t PPC_PCIIO_readl (target_phys_addr_t addr) +{ + PCIBridge *s = &pci_bridge; + uint32_t val; + set_config(s, addr); + val = pci_data_read(s, addr, 4); +#ifdef TARGET_WORDS_BIGENDIAN + val = bswap32(val); +#endif + return val; +} + +static CPUWriteMemoryFunc *PPC_PCIIO_write[] = { + &PPC_PCIIO_writeb, + &PPC_PCIIO_writew, + &PPC_PCIIO_writel, +}; + +static CPUReadMemoryFunc *PPC_PCIIO_read[] = { + &PPC_PCIIO_readb, + &PPC_PCIIO_readw, + &PPC_PCIIO_readl, +}; + +void pci_prep_init(void) +{ + PCIDevice *d; + int PPC_io_memory; + + PPC_io_memory = cpu_register_io_memory(0, PPC_PCIIO_read, PPC_PCIIO_write); + cpu_register_physical_memory(0x80800000, 0x00400000, PPC_io_memory); + + d = pci_register_device("PREP PCI Bridge", sizeof(PCIDevice), 0, 0, + NULL, NULL); + + /* XXX: put correct IDs */ + d->config[0x00] = 0x11; // vendor_id + d->config[0x01] = 0x10; + d->config[0x02] = 0x26; // device_id + d->config[0x03] = 0x00; + d->config[0x08] = 0x02; // revision + d->config[0x0a] = 0x04; // class_sub = pci2pci + d->config[0x0b] = 0x06; // class_base = PCI_bridge + d->config[0x0e] = 0x01; // header_type +} + + +/* pmac pci init */ + +static void pci_pmac_config_writel (target_phys_addr_t addr, uint32_t val) +{ + PCIBridge *s = &pci_bridge; +#ifdef TARGET_WORDS_BIGENDIAN + val = bswap32(val); +#endif + s->config_reg = val; +} + +static uint32_t pci_pmac_config_readl (target_phys_addr_t addr) +{ + PCIBridge *s = &pci_bridge; + uint32_t val; + + val = s->config_reg; +#ifdef TARGET_WORDS_BIGENDIAN + val = bswap32(val); +#endif + return val; +} + +static CPUWriteMemoryFunc *pci_pmac_config_write[] = { + &pci_pmac_config_writel, + &pci_pmac_config_writel, + &pci_pmac_config_writel, +}; + +static CPUReadMemoryFunc *pci_pmac_config_read[] = { + &pci_pmac_config_readl, + &pci_pmac_config_readl, + &pci_pmac_config_readl, +}; + +static void pci_pmac_writeb (target_phys_addr_t addr, uint32_t val) +{ + PCIBridge *s = &pci_bridge; + pci_data_write(s, addr, val, 1); +} + +static void pci_pmac_writew (target_phys_addr_t addr, uint32_t val) +{ + PCIBridge *s = &pci_bridge; +#ifdef TARGET_WORDS_BIGENDIAN + val = bswap16(val); +#endif + pci_data_write(s, addr, val, 2); +} + +static void pci_pmac_writel (target_phys_addr_t addr, uint32_t val) +{ + PCIBridge *s = &pci_bridge; +#ifdef TARGET_WORDS_BIGENDIAN + val = bswap32(val); +#endif + pci_data_write(s, addr, val, 4); +} + +static uint32_t pci_pmac_readb (target_phys_addr_t addr) +{ + PCIBridge *s = &pci_bridge; + uint32_t val; + val = pci_data_read(s, addr, 1); + return val; +} + +static uint32_t pci_pmac_readw (target_phys_addr_t addr) +{ + PCIBridge *s = &pci_bridge; + uint32_t val; + val = pci_data_read(s, addr, 2); +#ifdef TARGET_WORDS_BIGENDIAN + val = bswap16(val); +#endif + return val; +} + +static uint32_t pci_pmac_readl (target_phys_addr_t addr) +{ + PCIBridge *s = &pci_bridge; + uint32_t val; + + val = pci_data_read(s, addr, 4); +#ifdef TARGET_WORDS_BIGENDIAN + val = bswap32(val); +#endif + return val; +} + +static CPUWriteMemoryFunc *pci_pmac_write[] = { + &pci_pmac_writeb, + &pci_pmac_writew, + &pci_pmac_writel, +}; + +static CPUReadMemoryFunc *pci_pmac_read[] = { + &pci_pmac_readb, + &pci_pmac_readw, + &pci_pmac_readl, +}; + +void pci_pmac_init(void) +{ + PCIDevice *d; + int pci_mem_config, pci_mem_data; + + pci_mem_config = cpu_register_io_memory(0, pci_pmac_config_read, + pci_pmac_config_write); + pci_mem_data = cpu_register_io_memory(0, pci_pmac_read, pci_pmac_write); + + cpu_register_physical_memory(0xfec00000, 0x1000, pci_mem_config); + cpu_register_physical_memory(0xfee00000, 0x1000, pci_mem_data); + + d = pci_register_device("MPC106", sizeof(PCIDevice), 0, 0, + NULL, NULL); + + /* same values as PearPC - check this */ + d->config[0x00] = 0x11; // vendor_id + d->config[0x01] = 0x10; + d->config[0x02] = 0x26; // device_id + d->config[0x03] = 0x00; + d->config[0x08] = 0x02; // revision + d->config[0x0a] = 0x04; // class_sub = pci2pci + d->config[0x0b] = 0x06; // class_base = PCI_bridge + d->config[0x0e] = 0x01; // header_type + + d->config[0x18] = 0x0; // primary_bus + d->config[0x19] = 0x1; // secondary_bus + d->config[0x1a] = 0x1; // subordinate_bus + d->config[0x1c] = 0x10; // io_base + d->config[0x1d] = 0x20; // io_limit + + d->config[0x20] = 0x80; // memory_base + d->config[0x21] = 0x80; + d->config[0x22] = 0x90; // memory_limit + d->config[0x23] = 0x80; + + d->config[0x24] = 0x00; // prefetchable_memory_base + d->config[0x25] = 0x84; + d->config[0x26] = 0x00; // prefetchable_memory_limit + d->config[0x27] = 0x85; +} + /***********************************************************/ /* generic PCI irq support */ @@ -484,6 +737,11 @@ static inline int pci_slot_get_pirq(PCIDevice *pci_dev, int irq_num) } /* 0 <= irq_num <= 3. level must be 0 or 1 */ +#ifdef TARGET_PPC +void pci_set_irq(PCIDevice *pci_dev, int irq_num, int level) +{ +} +#else void pci_set_irq(PCIDevice *pci_dev, int irq_num, int level) { int irq_index, shift, pic_irq, pic_level; @@ -519,6 +777,7 @@ void pci_set_irq(PCIDevice *pci_dev, int irq_num, int level) pic_set_irq(pic_irq, pic_level); } } +#endif /***********************************************************/ /* monitor info on PCI */ @@ -780,3 +1039,44 @@ void pci_bios_init(void) } } } + +/* + * This function initializes the PCI devices as a normal PCI BIOS + * would do. It is provided just in case the BIOS has no support for + * PCI. + */ +void pci_ppc_bios_init(void) +{ + PCIBridge *s = &pci_bridge; + PCIDevice **bus; + int bus_num, devfn, i, irq; + uint8_t elcr[2]; + + pci_bios_io_addr = 0xc000; + pci_bios_mem_addr = 0xc0000000; + +#if 0 + /* activate IRQ mappings */ + elcr[0] = 0x00; + elcr[1] = 0x00; + for(i = 0; i < 4; i++) { + irq = pci_irqs[i]; + /* set to trigger level */ + elcr[irq >> 3] |= (1 << (irq & 7)); + /* activate irq remapping in PIIX */ + pci_config_writeb((PCIDevice *)piix3_state, 0x60 + i, irq); + } + isa_outb(elcr[0], 0x4d0); + isa_outb(elcr[1], 0x4d1); +#endif + + for(bus_num = 0; bus_num < 256; bus_num++) { + bus = s->pci_bus[bus_num]; + if (bus) { + for(devfn = 0; devfn < 256; devfn++) { + if (bus[devfn]) + pci_bios_init_device(bus[devfn]); + } + } + } +} -- cgit v1.1