| /* |
| * bonito north bridge support |
| * |
| * Copyright (c) 2008 yajin (yajin@vm-kernel.org) |
| * Copyright (c) 2010 Huacai Chen (zltjiangshi@gmail.com) |
| * |
| * This code is licensed under the GNU GPL v2. |
| * |
| * Contributions after 2012-01-13 are licensed under the terms of the |
| * GNU GPL, version 2 or (at your option) any later version. |
| */ |
| |
| /* |
| * fuloong 2e mini pc has a bonito north bridge. |
| */ |
| |
| /* |
| * what is the meaning of devfn in qemu and IDSEL in bonito northbridge? |
| * |
| * devfn pci_slot<<3 + funno |
| * one pci bus can have 32 devices and each device can have 8 functions. |
| * |
| * In bonito north bridge, pci slot = IDSEL bit - 12. |
| * For example, PCI_IDSEL_VIA686B = 17, |
| * pci slot = 17-12=5 |
| * |
| * so |
| * VT686B_FUN0's devfn = (5<<3)+0 |
| * VT686B_FUN1's devfn = (5<<3)+1 |
| * |
| * qemu also uses pci address for north bridge to access pci config register. |
| * bus_no [23:16] |
| * dev_no [15:11] |
| * fun_no [10:8] |
| * reg_no [7:2] |
| * |
| * so function bonito_sbridge_pciaddr for the translation from |
| * north bridge address to pci address. |
| */ |
| |
| #include "qemu/osdep.h" |
| #include "qemu/units.h" |
| #include "qapi/error.h" |
| #include "qemu/error-report.h" |
| #include "hw/pci/pci.h" |
| #include "hw/irq.h" |
| #include "hw/mips/mips.h" |
| #include "hw/pci/pci_host.h" |
| #include "migration/vmstate.h" |
| #include "sysemu/reset.h" |
| #include "sysemu/runstate.h" |
| #include "hw/misc/unimp.h" |
| #include "hw/registerfields.h" |
| #include "qom/object.h" |
| #include "trace.h" |
| |
| /* #define DEBUG_BONITO */ |
| |
| #ifdef DEBUG_BONITO |
| #define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __func__, ##__VA_ARGS__) |
| #else |
| #define DPRINTF(fmt, ...) |
| #endif |
| |
| /* from linux soure code. include/asm-mips/mips-boards/bonito64.h*/ |
| #define BONITO_BOOT_BASE 0x1fc00000 |
| #define BONITO_BOOT_SIZE 0x00100000 |
| #define BONITO_BOOT_TOP (BONITO_BOOT_BASE + BONITO_BOOT_SIZE - 1) |
| #define BONITO_FLASH_BASE 0x1c000000 |
| #define BONITO_FLASH_SIZE 0x03000000 |
| #define BONITO_FLASH_TOP (BONITO_FLASH_BASE + BONITO_FLASH_SIZE - 1) |
| #define BONITO_SOCKET_BASE 0x1f800000 |
| #define BONITO_SOCKET_SIZE 0x00400000 |
| #define BONITO_SOCKET_TOP (BONITO_SOCKET_BASE + BONITO_SOCKET_SIZE - 1) |
| #define BONITO_REG_BASE 0x1fe00000 |
| #define BONITO_REG_SIZE 0x00040000 |
| #define BONITO_REG_TOP (BONITO_REG_BASE + BONITO_REG_SIZE - 1) |
| #define BONITO_DEV_BASE 0x1ff00000 |
| #define BONITO_DEV_SIZE 0x00100000 |
| #define BONITO_DEV_TOP (BONITO_DEV_BASE + BONITO_DEV_SIZE - 1) |
| #define BONITO_PCILO_BASE 0x10000000 |
| #define BONITO_PCILO_BASE_VA 0xb0000000 |
| #define BONITO_PCILO_SIZE 0x0c000000 |
| #define BONITO_PCILO_TOP (BONITO_PCILO_BASE + BONITO_PCILO_SIZE - 1) |
| #define BONITO_PCILO0_BASE 0x10000000 |
| #define BONITO_PCILO1_BASE 0x14000000 |
| #define BONITO_PCILO2_BASE 0x18000000 |
| #define BONITO_PCIHI_BASE 0x20000000 |
| #define BONITO_PCIHI_SIZE 0x60000000 |
| #define BONITO_PCIHI_TOP (BONITO_PCIHI_BASE + BONITO_PCIHI_SIZE - 1) |
| #define BONITO_PCIIO_BASE 0x1fd00000 |
| #define BONITO_PCIIO_BASE_VA 0xbfd00000 |
| #define BONITO_PCIIO_SIZE 0x00010000 |
| #define BONITO_PCIIO_TOP (BONITO_PCIIO_BASE + BONITO_PCIIO_SIZE - 1) |
| #define BONITO_PCICFG_BASE 0x1fe80000 |
| #define BONITO_PCICFG_SIZE 0x00080000 |
| #define BONITO_PCICFG_TOP (BONITO_PCICFG_BASE + BONITO_PCICFG_SIZE - 1) |
| |
| |
| #define BONITO_PCICONFIGBASE 0x00 |
| #define BONITO_REGBASE 0x100 |
| |
| #define BONITO_PCICONFIG_BASE (BONITO_PCICONFIGBASE + BONITO_REG_BASE) |
| #define BONITO_PCICONFIG_SIZE (0x100) |
| |
| #define BONITO_INTERNAL_REG_BASE (BONITO_REGBASE + BONITO_REG_BASE) |
| #define BONITO_INTERNAL_REG_SIZE (0x70) |
| |
| #define BONITO_SPCICONFIG_BASE (BONITO_PCICFG_BASE) |
| #define BONITO_SPCICONFIG_SIZE (BONITO_PCICFG_SIZE) |
| |
| |
| |
| /* 1. Bonito h/w Configuration */ |
| /* Power on register */ |
| |
| #define BONITO_BONPONCFG (0x00 >> 2) /* 0x100 */ |
| |
| /* PCI configuration register */ |
| #define BONITO_BONGENCFG_OFFSET 0x4 |
| #define BONITO_BONGENCFG (BONITO_BONGENCFG_OFFSET >> 2) /*0x104 */ |
| REG32(BONGENCFG, 0x104) |
| FIELD(BONGENCFG, DEBUGMODE, 0, 1) |
| FIELD(BONGENCFG, SNOOP, 1, 1) |
| FIELD(BONGENCFG, CPUSELFRESET, 2, 1) |
| FIELD(BONGENCFG, BYTESWAP, 6, 1) |
| FIELD(BONGENCFG, UNCACHED, 7, 1) |
| FIELD(BONGENCFG, PREFETCH, 8, 1) |
| FIELD(BONGENCFG, WRITEBEHIND, 9, 1) |
| FIELD(BONGENCFG, PCIQUEUE, 12, 1) |
| |
| /* 2. IO & IDE configuration */ |
| #define BONITO_IODEVCFG (0x08 >> 2) /* 0x108 */ |
| |
| /* 3. IO & IDE configuration */ |
| #define BONITO_SDCFG (0x0c >> 2) /* 0x10c */ |
| |
| /* 4. PCI address map control */ |
| #define BONITO_PCIMAP (0x10 >> 2) /* 0x110 */ |
| #define BONITO_PCIMEMBASECFG (0x14 >> 2) /* 0x114 */ |
| #define BONITO_PCIMAP_CFG (0x18 >> 2) /* 0x118 */ |
| |
| /* 5. ICU & GPIO regs */ |
| /* GPIO Regs - r/w */ |
| #define BONITO_GPIODATA_OFFSET 0x1c |
| #define BONITO_GPIODATA (BONITO_GPIODATA_OFFSET >> 2) /* 0x11c */ |
| #define BONITO_GPIOIE (0x20 >> 2) /* 0x120 */ |
| |
| /* ICU Configuration Regs - r/w */ |
| #define BONITO_INTEDGE (0x24 >> 2) /* 0x124 */ |
| #define BONITO_INTSTEER (0x28 >> 2) /* 0x128 */ |
| #define BONITO_INTPOL (0x2c >> 2) /* 0x12c */ |
| |
| /* ICU Enable Regs - IntEn & IntISR are r/o. */ |
| #define BONITO_INTENSET (0x30 >> 2) /* 0x130 */ |
| #define BONITO_INTENCLR (0x34 >> 2) /* 0x134 */ |
| #define BONITO_INTEN (0x38 >> 2) /* 0x138 */ |
| #define BONITO_INTISR (0x3c >> 2) /* 0x13c */ |
| |
| /* PCI mail boxes */ |
| #define BONITO_PCIMAIL0_OFFSET 0x40 |
| #define BONITO_PCIMAIL1_OFFSET 0x44 |
| #define BONITO_PCIMAIL2_OFFSET 0x48 |
| #define BONITO_PCIMAIL3_OFFSET 0x4c |
| #define BONITO_PCIMAIL0 (0x40 >> 2) /* 0x140 */ |
| #define BONITO_PCIMAIL1 (0x44 >> 2) /* 0x144 */ |
| #define BONITO_PCIMAIL2 (0x48 >> 2) /* 0x148 */ |
| #define BONITO_PCIMAIL3 (0x4c >> 2) /* 0x14c */ |
| |
| /* 6. PCI cache */ |
| #define BONITO_PCICACHECTRL (0x50 >> 2) /* 0x150 */ |
| #define BONITO_PCICACHETAG (0x54 >> 2) /* 0x154 */ |
| #define BONITO_PCIBADADDR (0x58 >> 2) /* 0x158 */ |
| #define BONITO_PCIMSTAT (0x5c >> 2) /* 0x15c */ |
| |
| /* 7. other*/ |
| #define BONITO_TIMECFG (0x60 >> 2) /* 0x160 */ |
| #define BONITO_CPUCFG (0x64 >> 2) /* 0x164 */ |
| #define BONITO_DQCFG (0x68 >> 2) /* 0x168 */ |
| #define BONITO_MEMSIZE (0x6C >> 2) /* 0x16c */ |
| |
| #define BONITO_REGS (0x70 >> 2) |
| |
| /* PCI config for south bridge. type 0 */ |
| #define BONITO_PCICONF_IDSEL_MASK 0xfffff800 /* [31:11] */ |
| #define BONITO_PCICONF_IDSEL_OFFSET 11 |
| #define BONITO_PCICONF_FUN_MASK 0x700 /* [10:8] */ |
| #define BONITO_PCICONF_FUN_OFFSET 8 |
| #define BONITO_PCICONF_REG_MASK_DS (~3) /* Per datasheet */ |
| #define BONITO_PCICONF_REG_MASK_HW 0xff /* As seen running PMON */ |
| #define BONITO_PCICONF_REG_OFFSET 0 |
| |
| |
| /* idsel BIT = pci slot number +12 */ |
| #define PCI_SLOT_BASE 12 |
| #define PCI_IDSEL_VIA686B_BIT (17) |
| #define PCI_IDSEL_VIA686B (1 << PCI_IDSEL_VIA686B_BIT) |
| |
| #define PCI_ADDR(busno , devno , funno , regno) \ |
| ((PCI_BUILD_BDF(busno, PCI_DEVFN(devno , funno)) << 8) + (regno)) |
| |
| typedef struct BonitoState BonitoState; |
| |
| struct PCIBonitoState { |
| PCIDevice dev; |
| |
| BonitoState *pcihost; |
| uint32_t regs[BONITO_REGS]; |
| |
| struct bonldma { |
| uint32_t ldmactrl; |
| uint32_t ldmastat; |
| uint32_t ldmaaddr; |
| uint32_t ldmago; |
| } bonldma; |
| |
| /* Based at 1fe00300, bonito Copier */ |
| struct boncop { |
| uint32_t copctrl; |
| uint32_t copstat; |
| uint32_t coppaddr; |
| uint32_t copgo; |
| } boncop; |
| |
| /* Bonito registers */ |
| MemoryRegion iomem; |
| MemoryRegion iomem_ldma; |
| MemoryRegion iomem_cop; |
| MemoryRegion bonito_pciio; |
| MemoryRegion bonito_localio; |
| |
| }; |
| typedef struct PCIBonitoState PCIBonitoState; |
| |
| struct BonitoState { |
| PCIHostState parent_obj; |
| qemu_irq *pic; |
| PCIBonitoState *pci_dev; |
| MemoryRegion pci_mem; |
| }; |
| |
| #define TYPE_BONITO_PCI_HOST_BRIDGE "Bonito-pcihost" |
| OBJECT_DECLARE_SIMPLE_TYPE(BonitoState, BONITO_PCI_HOST_BRIDGE) |
| |
| #define TYPE_PCI_BONITO "Bonito" |
| OBJECT_DECLARE_SIMPLE_TYPE(PCIBonitoState, PCI_BONITO) |
| |
| static void bonito_writel(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| PCIBonitoState *s = opaque; |
| uint32_t saddr; |
| int reset = 0; |
| |
| saddr = addr >> 2; |
| |
| DPRINTF("bonito_writel "TARGET_FMT_plx" val %lx saddr %x\n", |
| addr, val, saddr); |
| switch (saddr) { |
| case BONITO_BONPONCFG: |
| case BONITO_IODEVCFG: |
| case BONITO_SDCFG: |
| case BONITO_PCIMAP: |
| case BONITO_PCIMEMBASECFG: |
| case BONITO_PCIMAP_CFG: |
| case BONITO_GPIODATA: |
| case BONITO_GPIOIE: |
| case BONITO_INTEDGE: |
| case BONITO_INTSTEER: |
| case BONITO_INTPOL: |
| case BONITO_PCIMAIL0: |
| case BONITO_PCIMAIL1: |
| case BONITO_PCIMAIL2: |
| case BONITO_PCIMAIL3: |
| case BONITO_PCICACHECTRL: |
| case BONITO_PCICACHETAG: |
| case BONITO_PCIBADADDR: |
| case BONITO_PCIMSTAT: |
| case BONITO_TIMECFG: |
| case BONITO_CPUCFG: |
| case BONITO_DQCFG: |
| case BONITO_MEMSIZE: |
| s->regs[saddr] = val; |
| break; |
| case BONITO_BONGENCFG: |
| if (!(s->regs[saddr] & 0x04) && (val & 0x04)) { |
| reset = 1; /* bit 2 jump from 0 to 1 cause reset */ |
| } |
| s->regs[saddr] = val; |
| if (reset) { |
| qemu_system_reset_request(SHUTDOWN_CAUSE_GUEST_RESET); |
| } |
| break; |
| case BONITO_INTENSET: |
| s->regs[BONITO_INTENSET] = val; |
| s->regs[BONITO_INTEN] |= val; |
| break; |
| case BONITO_INTENCLR: |
| s->regs[BONITO_INTENCLR] = val; |
| s->regs[BONITO_INTEN] &= ~val; |
| break; |
| case BONITO_INTEN: |
| case BONITO_INTISR: |
| DPRINTF("write to readonly bonito register %x\n", saddr); |
| break; |
| default: |
| DPRINTF("write to unknown bonito register %x\n", saddr); |
| break; |
| } |
| } |
| |
| static uint64_t bonito_readl(void *opaque, hwaddr addr, |
| unsigned size) |
| { |
| PCIBonitoState *s = opaque; |
| uint32_t saddr; |
| |
| saddr = addr >> 2; |
| |
| DPRINTF("bonito_readl "TARGET_FMT_plx"\n", addr); |
| switch (saddr) { |
| case BONITO_INTISR: |
| return s->regs[saddr]; |
| default: |
| return s->regs[saddr]; |
| } |
| } |
| |
| static const MemoryRegionOps bonito_ops = { |
| .read = bonito_readl, |
| .write = bonito_writel, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| .valid = { |
| .min_access_size = 4, |
| .max_access_size = 4, |
| }, |
| }; |
| |
| static void bonito_pciconf_writel(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| PCIBonitoState *s = opaque; |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| DPRINTF("bonito_pciconf_writel "TARGET_FMT_plx" val %lx\n", addr, val); |
| d->config_write(d, addr, val, 4); |
| } |
| |
| static uint64_t bonito_pciconf_readl(void *opaque, hwaddr addr, |
| unsigned size) |
| { |
| |
| PCIBonitoState *s = opaque; |
| PCIDevice *d = PCI_DEVICE(s); |
| |
| DPRINTF("bonito_pciconf_readl "TARGET_FMT_plx"\n", addr); |
| return d->config_read(d, addr, 4); |
| } |
| |
| /* north bridge PCI configure space. 0x1fe0 0000 - 0x1fe0 00ff */ |
| |
| static const MemoryRegionOps bonito_pciconf_ops = { |
| .read = bonito_pciconf_readl, |
| .write = bonito_pciconf_writel, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| .valid = { |
| .min_access_size = 4, |
| .max_access_size = 4, |
| }, |
| }; |
| |
| static uint64_t bonito_ldma_readl(void *opaque, hwaddr addr, |
| unsigned size) |
| { |
| uint32_t val; |
| PCIBonitoState *s = opaque; |
| |
| if (addr >= sizeof(s->bonldma)) { |
| return 0; |
| } |
| |
| val = ((uint32_t *)(&s->bonldma))[addr / sizeof(uint32_t)]; |
| |
| return val; |
| } |
| |
| static void bonito_ldma_writel(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| PCIBonitoState *s = opaque; |
| |
| if (addr >= sizeof(s->bonldma)) { |
| return; |
| } |
| |
| ((uint32_t *)(&s->bonldma))[addr / sizeof(uint32_t)] = val & 0xffffffff; |
| } |
| |
| static const MemoryRegionOps bonito_ldma_ops = { |
| .read = bonito_ldma_readl, |
| .write = bonito_ldma_writel, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| .valid = { |
| .min_access_size = 4, |
| .max_access_size = 4, |
| }, |
| }; |
| |
| static uint64_t bonito_cop_readl(void *opaque, hwaddr addr, |
| unsigned size) |
| { |
| uint32_t val; |
| PCIBonitoState *s = opaque; |
| |
| if (addr >= sizeof(s->boncop)) { |
| return 0; |
| } |
| |
| val = ((uint32_t *)(&s->boncop))[addr / sizeof(uint32_t)]; |
| |
| return val; |
| } |
| |
| static void bonito_cop_writel(void *opaque, hwaddr addr, |
| uint64_t val, unsigned size) |
| { |
| PCIBonitoState *s = opaque; |
| |
| if (addr >= sizeof(s->boncop)) { |
| return; |
| } |
| |
| ((uint32_t *)(&s->boncop))[addr / sizeof(uint32_t)] = val & 0xffffffff; |
| } |
| |
| static const MemoryRegionOps bonito_cop_ops = { |
| .read = bonito_cop_readl, |
| .write = bonito_cop_writel, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| .valid = { |
| .min_access_size = 4, |
| .max_access_size = 4, |
| }, |
| }; |
| |
| static uint32_t bonito_sbridge_pciaddr(void *opaque, hwaddr addr) |
| { |
| PCIBonitoState *s = opaque; |
| PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost); |
| uint32_t cfgaddr; |
| uint32_t idsel; |
| uint32_t devno; |
| uint32_t funno; |
| uint32_t regno; |
| uint32_t pciaddr; |
| |
| /* support type0 pci config */ |
| if ((s->regs[BONITO_PCIMAP_CFG] & 0x10000) != 0x0) { |
| return 0xffffffff; |
| } |
| |
| cfgaddr = addr & 0xffff; |
| cfgaddr |= (s->regs[BONITO_PCIMAP_CFG] & 0xffff) << 16; |
| |
| idsel = (cfgaddr & BONITO_PCICONF_IDSEL_MASK) >> |
| BONITO_PCICONF_IDSEL_OFFSET; |
| devno = ctz32(idsel); |
| funno = (cfgaddr & BONITO_PCICONF_FUN_MASK) >> BONITO_PCICONF_FUN_OFFSET; |
| regno = (cfgaddr & BONITO_PCICONF_REG_MASK_HW) >> BONITO_PCICONF_REG_OFFSET; |
| |
| if (idsel == 0) { |
| error_report("error in bonito pci config address 0x" TARGET_FMT_plx |
| ",pcimap_cfg=0x%x", addr, s->regs[BONITO_PCIMAP_CFG]); |
| exit(1); |
| } |
| pciaddr = PCI_ADDR(pci_bus_num(phb->bus), devno, funno, regno); |
| DPRINTF("cfgaddr %x pciaddr %x busno %x devno %d funno %d regno %d\n", |
| cfgaddr, pciaddr, pci_bus_num(phb->bus), devno, funno, regno); |
| |
| return pciaddr; |
| } |
| |
| static void bonito_spciconf_write(void *opaque, hwaddr addr, uint64_t val, |
| unsigned size) |
| { |
| PCIBonitoState *s = opaque; |
| PCIDevice *d = PCI_DEVICE(s); |
| PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost); |
| uint32_t pciaddr; |
| uint16_t status; |
| |
| DPRINTF("bonito_spciconf_write "TARGET_FMT_plx" size %d val %lx\n", |
| addr, size, val); |
| |
| pciaddr = bonito_sbridge_pciaddr(s, addr); |
| |
| if (pciaddr == 0xffffffff) { |
| return; |
| } |
| if (addr & ~BONITO_PCICONF_REG_MASK_DS) { |
| trace_bonito_spciconf_small_access(addr, size); |
| } |
| |
| /* set the pci address in s->config_reg */ |
| phb->config_reg = (pciaddr) | (1u << 31); |
| pci_data_write(phb->bus, phb->config_reg, val, size); |
| |
| /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */ |
| status = pci_get_word(d->config + PCI_STATUS); |
| status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT); |
| pci_set_word(d->config + PCI_STATUS, status); |
| } |
| |
| static uint64_t bonito_spciconf_read(void *opaque, hwaddr addr, unsigned size) |
| { |
| PCIBonitoState *s = opaque; |
| PCIDevice *d = PCI_DEVICE(s); |
| PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost); |
| uint32_t pciaddr; |
| uint16_t status; |
| |
| DPRINTF("bonito_spciconf_read "TARGET_FMT_plx" size %d\n", addr, size); |
| |
| pciaddr = bonito_sbridge_pciaddr(s, addr); |
| |
| if (pciaddr == 0xffffffff) { |
| return MAKE_64BIT_MASK(0, size * 8); |
| } |
| if (addr & ~BONITO_PCICONF_REG_MASK_DS) { |
| trace_bonito_spciconf_small_access(addr, size); |
| } |
| |
| /* set the pci address in s->config_reg */ |
| phb->config_reg = (pciaddr) | (1u << 31); |
| |
| /* clear PCI_STATUS_REC_MASTER_ABORT and PCI_STATUS_REC_TARGET_ABORT */ |
| status = pci_get_word(d->config + PCI_STATUS); |
| status &= ~(PCI_STATUS_REC_MASTER_ABORT | PCI_STATUS_REC_TARGET_ABORT); |
| pci_set_word(d->config + PCI_STATUS, status); |
| |
| return pci_data_read(phb->bus, phb->config_reg, size); |
| } |
| |
| /* south bridge PCI configure space. 0x1fe8 0000 - 0x1fef ffff */ |
| static const MemoryRegionOps bonito_spciconf_ops = { |
| .read = bonito_spciconf_read, |
| .write = bonito_spciconf_write, |
| .valid.min_access_size = 1, |
| .valid.max_access_size = 4, |
| .impl.min_access_size = 1, |
| .impl.max_access_size = 4, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| }; |
| |
| #define BONITO_IRQ_BASE 32 |
| |
| static void pci_bonito_set_irq(void *opaque, int irq_num, int level) |
| { |
| BonitoState *s = opaque; |
| qemu_irq *pic = s->pic; |
| PCIBonitoState *bonito_state = s->pci_dev; |
| int internal_irq = irq_num - BONITO_IRQ_BASE; |
| |
| if (bonito_state->regs[BONITO_INTEDGE] & (1 << internal_irq)) { |
| qemu_irq_pulse(*pic); |
| } else { /* level triggered */ |
| if (bonito_state->regs[BONITO_INTPOL] & (1 << internal_irq)) { |
| qemu_irq_raise(*pic); |
| } else { |
| qemu_irq_lower(*pic); |
| } |
| } |
| } |
| |
| /* map the original irq (0~3) to bonito irq (16~47, but 16~31 are unused) */ |
| static int pci_bonito_map_irq(PCIDevice *pci_dev, int irq_num) |
| { |
| int slot; |
| |
| slot = PCI_SLOT(pci_dev->devfn); |
| |
| switch (slot) { |
| case 5: /* FULOONG2E_VIA_SLOT, SouthBridge, IDE, USB, ACPI, AC97, MC97 */ |
| return irq_num % 4 + BONITO_IRQ_BASE; |
| case 6: /* FULOONG2E_ATI_SLOT, VGA */ |
| return 4 + BONITO_IRQ_BASE; |
| case 7: /* FULOONG2E_RTL_SLOT, RTL8139 */ |
| return 5 + BONITO_IRQ_BASE; |
| case 8 ... 12: /* PCI slot 1 to 4 */ |
| return (slot - 8 + irq_num) + 6 + BONITO_IRQ_BASE; |
| default: /* Unknown device, don't do any translation */ |
| return irq_num; |
| } |
| } |
| |
| static void bonito_reset(void *opaque) |
| { |
| PCIBonitoState *s = opaque; |
| uint32_t val = 0; |
| |
| /* set the default value of north bridge registers */ |
| |
| s->regs[BONITO_BONPONCFG] = 0xc40; |
| val = FIELD_DP32(val, BONGENCFG, PCIQUEUE, 1); |
| val = FIELD_DP32(val, BONGENCFG, WRITEBEHIND, 1); |
| val = FIELD_DP32(val, BONGENCFG, PREFETCH, 1); |
| val = FIELD_DP32(val, BONGENCFG, UNCACHED, 1); |
| val = FIELD_DP32(val, BONGENCFG, CPUSELFRESET, 1); |
| s->regs[BONITO_BONGENCFG] = val; |
| |
| s->regs[BONITO_IODEVCFG] = 0x2bff8010; |
| s->regs[BONITO_SDCFG] = 0x255e0091; |
| |
| s->regs[BONITO_GPIODATA] = 0x1ff; |
| s->regs[BONITO_GPIOIE] = 0x1ff; |
| s->regs[BONITO_DQCFG] = 0x8; |
| s->regs[BONITO_MEMSIZE] = 0x10000000; |
| s->regs[BONITO_PCIMAP] = 0x6140; |
| } |
| |
| static const VMStateDescription vmstate_bonito = { |
| .name = "Bonito", |
| .version_id = 1, |
| .minimum_version_id = 1, |
| .fields = (VMStateField[]) { |
| VMSTATE_PCI_DEVICE(dev, PCIBonitoState), |
| VMSTATE_END_OF_LIST() |
| } |
| }; |
| |
| static void bonito_pcihost_realize(DeviceState *dev, Error **errp) |
| { |
| PCIHostState *phb = PCI_HOST_BRIDGE(dev); |
| BonitoState *bs = BONITO_PCI_HOST_BRIDGE(dev); |
| MemoryRegion *pcimem_lo_alias = g_new(MemoryRegion, 3); |
| |
| memory_region_init(&bs->pci_mem, OBJECT(dev), "pci.mem", BONITO_PCIHI_SIZE); |
| phb->bus = pci_register_root_bus(dev, "pci", |
| pci_bonito_set_irq, pci_bonito_map_irq, |
| dev, &bs->pci_mem, get_system_io(), |
| PCI_DEVFN(5, 0), 32, TYPE_PCI_BUS); |
| |
| for (size_t i = 0; i < 3; i++) { |
| char *name = g_strdup_printf("pci.lomem%zu", i); |
| |
| memory_region_init_alias(&pcimem_lo_alias[i], NULL, name, |
| &bs->pci_mem, i * 64 * MiB, 64 * MiB); |
| memory_region_add_subregion(get_system_memory(), |
| BONITO_PCILO_BASE + i * 64 * MiB, |
| &pcimem_lo_alias[i]); |
| g_free(name); |
| } |
| |
| create_unimplemented_device("pci.io", BONITO_PCIIO_BASE, 1 * MiB); |
| } |
| |
| static void bonito_realize(PCIDevice *dev, Error **errp) |
| { |
| PCIBonitoState *s = PCI_BONITO(dev); |
| SysBusDevice *sysbus = SYS_BUS_DEVICE(s->pcihost); |
| PCIHostState *phb = PCI_HOST_BRIDGE(s->pcihost); |
| BonitoState *bs = BONITO_PCI_HOST_BRIDGE(s->pcihost); |
| MemoryRegion *pcimem_alias = g_new(MemoryRegion, 1); |
| |
| /* |
| * Bonito North Bridge, built on FPGA, |
| * VENDOR_ID/DEVICE_ID are "undefined" |
| */ |
| pci_config_set_prog_interface(dev->config, 0x00); |
| |
| /* set the north bridge register mapping */ |
| memory_region_init_io(&s->iomem, OBJECT(s), &bonito_ops, s, |
| "north-bridge-register", BONITO_INTERNAL_REG_SIZE); |
| sysbus_init_mmio(sysbus, &s->iomem); |
| sysbus_mmio_map(sysbus, 0, BONITO_INTERNAL_REG_BASE); |
| |
| /* set the north bridge pci configure mapping */ |
| memory_region_init_io(&phb->conf_mem, OBJECT(s), &bonito_pciconf_ops, s, |
| "north-bridge-pci-config", BONITO_PCICONFIG_SIZE); |
| sysbus_init_mmio(sysbus, &phb->conf_mem); |
| sysbus_mmio_map(sysbus, 1, BONITO_PCICONFIG_BASE); |
| |
| /* set the south bridge pci configure mapping */ |
| memory_region_init_io(&phb->data_mem, OBJECT(s), &bonito_spciconf_ops, s, |
| "south-bridge-pci-config", BONITO_SPCICONFIG_SIZE); |
| sysbus_init_mmio(sysbus, &phb->data_mem); |
| sysbus_mmio_map(sysbus, 2, BONITO_SPCICONFIG_BASE); |
| |
| create_unimplemented_device("bonito", BONITO_REG_BASE, BONITO_REG_SIZE); |
| |
| memory_region_init_io(&s->iomem_ldma, OBJECT(s), &bonito_ldma_ops, s, |
| "ldma", 0x100); |
| sysbus_init_mmio(sysbus, &s->iomem_ldma); |
| sysbus_mmio_map(sysbus, 3, 0x1fe00200); |
| |
| /* PCI copier */ |
| memory_region_init_io(&s->iomem_cop, OBJECT(s), &bonito_cop_ops, s, |
| "cop", 0x100); |
| sysbus_init_mmio(sysbus, &s->iomem_cop); |
| sysbus_mmio_map(sysbus, 4, 0x1fe00300); |
| |
| create_unimplemented_device("ROMCS", BONITO_FLASH_BASE, 60 * MiB); |
| |
| /* Map PCI IO Space 0x1fd0 0000 - 0x1fd1 0000 */ |
| memory_region_init_alias(&s->bonito_pciio, OBJECT(s), "isa_mmio", |
| get_system_io(), 0, BONITO_PCIIO_SIZE); |
| sysbus_init_mmio(sysbus, &s->bonito_pciio); |
| sysbus_mmio_map(sysbus, 5, BONITO_PCIIO_BASE); |
| |
| /* add pci local io mapping */ |
| |
| memory_region_init_alias(&s->bonito_localio, OBJECT(s), "IOCS[0]", |
| get_system_io(), 0, 256 * KiB); |
| sysbus_init_mmio(sysbus, &s->bonito_localio); |
| sysbus_mmio_map(sysbus, 6, BONITO_DEV_BASE); |
| create_unimplemented_device("IOCS[1]", BONITO_DEV_BASE + 1 * 256 * KiB, |
| 256 * KiB); |
| create_unimplemented_device("IOCS[2]", BONITO_DEV_BASE + 2 * 256 * KiB, |
| 256 * KiB); |
| create_unimplemented_device("IOCS[3]", BONITO_DEV_BASE + 3 * 256 * KiB, |
| 256 * KiB); |
| |
| memory_region_init_alias(pcimem_alias, NULL, "pci.mem.alias", |
| &bs->pci_mem, 0, BONITO_PCIHI_SIZE); |
| memory_region_add_subregion(get_system_memory(), |
| BONITO_PCIHI_BASE, pcimem_alias); |
| create_unimplemented_device("PCI_2", |
| (hwaddr)BONITO_PCIHI_BASE + BONITO_PCIHI_SIZE, |
| 2 * GiB); |
| |
| /* set the default value of north bridge pci config */ |
| pci_set_word(dev->config + PCI_COMMAND, 0x0000); |
| pci_set_word(dev->config + PCI_STATUS, 0x0000); |
| pci_set_word(dev->config + PCI_SUBSYSTEM_VENDOR_ID, 0x0000); |
| pci_set_word(dev->config + PCI_SUBSYSTEM_ID, 0x0000); |
| |
| pci_set_byte(dev->config + PCI_INTERRUPT_LINE, 0x00); |
| pci_config_set_interrupt_pin(dev->config, 0x01); /* interrupt pin A */ |
| |
| pci_set_byte(dev->config + PCI_MIN_GNT, 0x3c); |
| pci_set_byte(dev->config + PCI_MAX_LAT, 0x00); |
| |
| qemu_register_reset(bonito_reset, s); |
| } |
| |
| PCIBus *bonito_init(qemu_irq *pic) |
| { |
| DeviceState *dev; |
| BonitoState *pcihost; |
| PCIHostState *phb; |
| PCIBonitoState *s; |
| PCIDevice *d; |
| |
| dev = qdev_new(TYPE_BONITO_PCI_HOST_BRIDGE); |
| phb = PCI_HOST_BRIDGE(dev); |
| pcihost = BONITO_PCI_HOST_BRIDGE(dev); |
| pcihost->pic = pic; |
| sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal); |
| |
| d = pci_new(PCI_DEVFN(0, 0), TYPE_PCI_BONITO); |
| s = PCI_BONITO(d); |
| s->pcihost = pcihost; |
| pcihost->pci_dev = s; |
| pci_realize_and_unref(d, phb->bus, &error_fatal); |
| |
| return phb->bus; |
| } |
| |
| static void bonito_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); |
| |
| k->realize = bonito_realize; |
| k->vendor_id = 0xdf53; |
| k->device_id = 0x00d5; |
| k->revision = 0x01; |
| k->class_id = PCI_CLASS_BRIDGE_HOST; |
| dc->desc = "Host bridge"; |
| dc->vmsd = &vmstate_bonito; |
| /* |
| * PCI-facing part of the host bridge, not usable without the |
| * host-facing part, which can't be device_add'ed, yet. |
| */ |
| dc->user_creatable = false; |
| } |
| |
| static const TypeInfo bonito_info = { |
| .name = TYPE_PCI_BONITO, |
| .parent = TYPE_PCI_DEVICE, |
| .instance_size = sizeof(PCIBonitoState), |
| .class_init = bonito_class_init, |
| .interfaces = (InterfaceInfo[]) { |
| { INTERFACE_CONVENTIONAL_PCI_DEVICE }, |
| { }, |
| }, |
| }; |
| |
| static void bonito_pcihost_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| |
| dc->realize = bonito_pcihost_realize; |
| } |
| |
| static const TypeInfo bonito_pcihost_info = { |
| .name = TYPE_BONITO_PCI_HOST_BRIDGE, |
| .parent = TYPE_PCI_HOST_BRIDGE, |
| .instance_size = sizeof(BonitoState), |
| .class_init = bonito_pcihost_class_init, |
| }; |
| |
| static void bonito_register_types(void) |
| { |
| type_register_static(&bonito_pcihost_info); |
| type_register_static(&bonito_info); |
| } |
| |
| type_init(bonito_register_types) |
