/* * 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 "qemu/osdep.h" #include "hw/hw.h" #include "hw/mips/mips.h" #include "hw/pci/pci.h" #include "hw/pci/pci_host.h" #include "hw/i386/pc.h" #include "exec/address-spaces.h" //#define DEBUG #ifdef DEBUG #define DPRINTF(fmt, ...) fprintf(stderr, "%s: " fmt, __func__, ##__VA_ARGS__) #else #define DPRINTF(fmt, ...) #endif #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_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_ISD (0x068 >> 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) #define PCI_MAPPING_ENTRY(regname) \ hwaddr regname ##_start; \ hwaddr regname ##_length; \ MemoryRegion regname ##_mem #define TYPE_GT64120_PCI_HOST_BRIDGE "gt64120" #define GT64120_PCI_HOST_BRIDGE(obj) \ OBJECT_CHECK(GT64120State, (obj), TYPE_GT64120_PCI_HOST_BRIDGE) typedef struct GT64120State { PCIHostState parent_obj; uint32_t regs[GT_REGS]; PCI_MAPPING_ENTRY(PCI0IO); PCI_MAPPING_ENTRY(PCI0M0); PCI_MAPPING_ENTRY(PCI0M1); PCI_MAPPING_ENTRY(ISD); MemoryRegion pci0_mem; AddressSpace pci0_mem_as; } GT64120State; /* Adjust range to avoid touching space which isn't mappable via PCI */ /* * XXX: Hardcoded values for Malta: 0x1e000000 - 0x1f100000 * 0x1fc00000 - 0x1fd00000 */ static void check_reserved_space(hwaddr *start, hwaddr *length) { hwaddr begin = *start; hwaddr end = *start + *length; if (end >= 0x1e000000LL && end < 0x1f100000LL) end = 0x1e000000LL; if (begin >= 0x1e000000LL && begin < 0x1f100000LL) begin = 0x1f100000LL; if (end >= 0x1fc00000LL && end < 0x1fd00000LL) end = 0x1fc00000LL; if (begin >= 0x1fc00000LL && begin < 0x1fd00000LL) begin = 0x1fd00000LL; /* XXX: This is broken when a reserved range splits the requested range */ if (end >= 0x1f100000LL && begin < 0x1e000000LL) end = 0x1e000000LL; if (end >= 0x1fd00000LL && begin < 0x1fc00000LL) end = 0x1fc00000LL; *start = begin; *length = end - begin; } static void gt64120_isd_mapping(GT64120State *s) { /* Bits 14:0 of ISD map to bits 35:21 of the start address. */ hwaddr start = ((hwaddr)s->regs[GT_ISD] << 21) & 0xFFFE00000ull; hwaddr length = 0x1000; if (s->ISD_length) { memory_region_del_subregion(get_system_memory(), &s->ISD_mem); } check_reserved_space(&start, &length); length = 0x1000; /* Map new address */ DPRINTF("ISD: "TARGET_FMT_plx"@"TARGET_FMT_plx " -> "TARGET_FMT_plx"@"TARGET_FMT_plx"\n", s->ISD_length, s->ISD_start, length, start); s->ISD_start = start; s->ISD_length = length; memory_region_add_subregion(get_system_memory(), s->ISD_start, &s->ISD_mem); } static void gt64120_pci_mapping(GT64120State *s) { /* Update PCI0IO mapping */ if ((s->regs[GT_PCI0IOLD] & 0x7f) <= s->regs[GT_PCI0IOHD]) { /* Unmap old IO address */ if (s->PCI0IO_length) { memory_region_del_subregion(get_system_memory(), &s->PCI0IO_mem); object_unparent(OBJECT(&s->PCI0IO_mem)); } /* 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; if (s->PCI0IO_length) { memory_region_init_alias(&s->PCI0IO_mem, OBJECT(s), "pci0-io", get_system_io(), 0, s->PCI0IO_length); memory_region_add_subregion(get_system_memory(), s->PCI0IO_start, &s->PCI0IO_mem); } } /* Update PCI0M0 mapping */ if ((s->regs[GT_PCI0M0LD] & 0x7f) <= s->regs[GT_PCI0M0HD]) { /* Unmap old MEM address */ if (s->PCI0M0_length) { memory_region_del_subregion(get_system_memory(), &s->PCI0M0_mem); object_unparent(OBJECT(&s->PCI0M0_mem)); } /* Map new mem address */ s->PCI0M0_start = s->regs[GT_PCI0M0LD] << 21; s->PCI0M0_length = ((s->regs[GT_PCI0M0HD] + 1) - (s->regs[GT_PCI0M0LD] & 0x7f)) << 21; if (s->PCI0M0_length) { memory_region_init_alias(&s->PCI0M0_mem, OBJECT(s), "pci0-mem0", &s->pci0_mem, s->PCI0M0_start, s->PCI0M0_length); memory_region_add_subregion(get_system_memory(), s->PCI0M0_start, &s->PCI0M0_mem); } } /* Update PCI0M1 mapping */ if ((s->regs[GT_PCI0M1LD] & 0x7f) <= s->regs[GT_PCI0M1HD]) { /* Unmap old MEM address */ if (s->PCI0M1_length) { memory_region_del_subregion(get_system_memory(), &s->PCI0M1_mem); object_unparent(OBJECT(&s->PCI0M1_mem)); } /* Map new mem address */ s->PCI0M1_start = s->regs[GT_PCI0M1LD] << 21; s->PCI0M1_length = ((s->regs[GT_PCI0M1HD] + 1) - (s->regs[GT_PCI0M1LD] & 0x7f)) << 21; if (s->PCI0M1_length) { memory_region_init_alias(&s->PCI0M1_mem, OBJECT(s), "pci0-mem1", &s->pci0_mem, s->PCI0M1_start, s->PCI0M1_length); memory_region_add_subregion(get_system_memory(), s->PCI0M1_start, &s->PCI0M1_mem); } } } static int gt64120_post_load(void *opaque, int version_id) { GT64120State *s = opaque; gt64120_isd_mapping(s); gt64120_pci_mapping(s); return 0; } static const VMStateDescription vmstate_gt64120 = { .name = "gt64120", .version_id = 1, .minimum_version_id = 1, .post_load = gt64120_post_load, .fields = (VMStateField[]) { VMSTATE_UINT32_ARRAY(regs, GT64120State, GT_REGS), VMSTATE_END_OF_LIST() } }; static void gt64120_writel (void *opaque, hwaddr addr, uint64_t val, unsigned size) { GT64120State *s = opaque; PCIHostState *phb = PCI_HOST_BRIDGE(s); uint32_t saddr; if (!(s->regs[GT_CPU] & 0x00001000)) val = bswap32(val); 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; break; case GT_PCI1M0LD: s->regs[GT_PCI1M0LD] = val & 0x00007fff; s->regs[GT_PCI1M0REMAP] = val & 0x000007ff; break; case GT_PCI1M1LD: s->regs[GT_PCI1M1LD] = val & 0x00007fff; s->regs[GT_PCI1M1REMAP] = val & 0x000007ff; break; case GT_PCI0M0HD: case GT_PCI0M1HD: case GT_PCI0IOHD: s->regs[saddr] = val & 0x0000007f; gt64120_pci_mapping(s); break; case GT_PCI1IOHD: case GT_PCI1M0HD: case GT_PCI1M1HD: s->regs[saddr] = val & 0x0000007f; break; case GT_ISD: s->regs[saddr] = val & 0x00007fff; gt64120_isd_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; 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; /* SDRAM and Device Address Decode */ case GT_SCS0LD: case GT_SCS0HD: case GT_SCS1LD: case GT_SCS1HD: case GT_SCS2LD: case GT_SCS2HD: case GT_SCS3LD: case GT_SCS3HD: case GT_CS0LD: case GT_CS0HD: case GT_CS1LD: case GT_CS1HD: case GT_CS2LD: case GT_CS2HD: case GT_CS3LD: case GT_CS3HD: case GT_BOOTLD: case GT_BOOTHD: case GT_ADERR: /* SDRAM Configuration */ case GT_SDRAM_CFG: case GT_SDRAM_OPMODE: case GT_SDRAM_BM: case GT_SDRAM_ADDRDECODE: /* Accept and ignore SDRAM interleave configuration */ s->regs[saddr] = val; break; /* Device Parameters */ case GT_DEV_B0: case GT_DEV_B1: case GT_DEV_B2: case GT_DEV_B3: case GT_DEV_BOOT: /* Not implemented */ DPRINTF ("Unimplemented device register offset 0x%x\n", saddr << 2); 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; /* DMA Record */ case GT_DMA0_CNT: case GT_DMA1_CNT: case GT_DMA2_CNT: case GT_DMA3_CNT: case GT_DMA0_SA: case GT_DMA1_SA: case GT_DMA2_SA: case GT_DMA3_SA: case GT_DMA0_DA: case GT_DMA1_DA: case GT_DMA2_DA: case GT_DMA3_DA: case GT_DMA0_NEXT: case GT_DMA1_NEXT: case GT_DMA2_NEXT: case GT_DMA3_NEXT: case GT_DMA0_CUR: case GT_DMA1_CUR: case GT_DMA2_CUR: case GT_DMA3_CUR: /* Not implemented */ DPRINTF ("Unimplemented DMA register offset 0x%x\n", saddr << 2); break; /* DMA Channel Control */ case GT_DMA0_CTRL: case GT_DMA1_CTRL: case GT_DMA2_CTRL: case GT_DMA3_CTRL: /* Not implemented */ DPRINTF ("Unimplemented DMA register offset 0x%x\n", saddr << 2); break; /* DMA Arbiter */ case GT_DMA_ARB: /* Not implemented */ DPRINTF ("Unimplemented DMA register offset 0x%x\n", saddr << 2); break; /* Timer/Counter */ case GT_TC0: case GT_TC1: case GT_TC2: case GT_TC3: case GT_TC_CONTROL: /* Not implemented */ DPRINTF ("Unimplemented timer register offset 0x%x\n", saddr << 2); break; /* PCI Internal */ case GT_PCI0_CMD: case GT_PCI1_CMD: s->regs[saddr] = val & 0x0401fc0f; break; case GT_PCI0_TOR: case GT_PCI0_BS_SCS10: case GT_PCI0_BS_SCS32: case GT_PCI0_BS_CS20: case GT_PCI0_BS_CS3BT: case GT_PCI1_IACK: case GT_PCI0_IACK: case GT_PCI0_BARE: case GT_PCI0_PREFMBR: case GT_PCI0_SCS10_BAR: case GT_PCI0_SCS32_BAR: case GT_PCI0_CS20_BAR: case GT_PCI0_CS3BT_BAR: case GT_PCI0_SSCS10_BAR: case GT_PCI0_SSCS32_BAR: case GT_PCI0_SCS3BT_BAR: case GT_PCI1_TOR: case GT_PCI1_BS_SCS10: case GT_PCI1_BS_SCS32: case GT_PCI1_BS_CS20: case GT_PCI1_BS_CS3BT: case GT_PCI1_BARE: case GT_PCI1_PREFMBR: case GT_PCI1_SCS10_BAR: case GT_PCI1_SCS32_BAR: case GT_PCI1_CS20_BAR: case GT_PCI1_CS3BT_BAR: case GT_PCI1_SSCS10_BAR: case GT_PCI1_SSCS32_BAR: case GT_PCI1_SCS3BT_BAR: case GT_PCI1_CFGADDR: case GT_PCI1_CFGDATA: /* not implemented */ break; case GT_PCI0_CFGADDR: phb->config_reg = val & 0x80fffffc; break; case GT_PCI0_CFGDATA: if (!(s->regs[GT_PCI0_CMD] & 1) && (phb->config_reg & 0x00fff800)) { val = bswap32(val); } if (phb->config_reg & (1u << 31)) { pci_data_write(phb->bus, phb->config_reg, val, 4); } break; /* Interrupts */ case GT_INTRCAUSE: /* not really implemented */ s->regs[saddr] = ~(~(s->regs[saddr]) | ~(val & 0xfffffffe)); s->regs[saddr] |= !!(s->regs[saddr] & 0xfffffffe); DPRINTF("INTRCAUSE %" PRIx64 "\n", val); break; case GT_INTRMASK: s->regs[saddr] = val & 0x3c3ffffe; DPRINTF("INTRMASK %" PRIx64 "\n", val); break; case GT_PCI0_ICMASK: s->regs[saddr] = val & 0x03fffffe; DPRINTF("ICMASK %" PRIx64 "\n", val); break; case GT_PCI0_SERR0MASK: s->regs[saddr] = val & 0x0000003f; DPRINTF("SERR0MASK %" PRIx64 "\n", val); break; /* Reserved when only PCI_0 is configured. */ case GT_HINTRCAUSE: case GT_CPU_INTSEL: case GT_PCI0_INTSEL: case GT_HINTRMASK: case GT_PCI0_HICMASK: case GT_PCI1_SERR1MASK: /* not implemented */ 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: DPRINTF ("Bad register offset 0x%x\n", (int)addr); break; } } static uint64_t gt64120_readl (void *opaque, hwaddr addr, unsigned size) { GT64120State *s = opaque; PCIHostState *phb = PCI_HOST_BRIDGE(s); uint32_t val; uint32_t saddr; 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_SCS10LD: case GT_SCS10HD: case GT_SCS32LD: case GT_SCS32HD: case GT_CS20LD: case GT_CS20HD: case GT_CS3BOOTLD: case GT_CS3BOOTHD: case GT_SCS10AR: case GT_SCS32AR: case GT_CS20R: case GT_CS3BOOTR: 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_PCI0IOREMAP: case GT_PCI0M0REMAP: case GT_PCI0M1REMAP: case GT_PCI1IOREMAP: case GT_PCI1M0REMAP: case GT_PCI1M1REMAP: case GT_ISD: val = s->regs[saddr]; break; case GT_PCI0_IACK: /* Read the IRQ number */ val = pic_read_irq(isa_pic); break; /* SDRAM and Device Address Decode */ case GT_SCS0LD: case GT_SCS0HD: case GT_SCS1LD: case GT_SCS1HD: case GT_SCS2LD: case GT_SCS2HD: case GT_SCS3LD: case GT_SCS3HD: case GT_CS0LD: case GT_CS0HD: case GT_CS1LD: case GT_CS1HD: case GT_CS2LD: case GT_CS2HD: case GT_CS3LD: case GT_CS3HD: case GT_BOOTLD: case GT_BOOTHD: case GT_ADERR: val = s->regs[saddr]; break; /* SDRAM Configuration */ case GT_SDRAM_CFG: case GT_SDRAM_OPMODE: case GT_SDRAM_BM: case GT_SDRAM_ADDRDECODE: val = s->regs[saddr]; 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; /* Device Parameters */ case GT_DEV_B0: case GT_DEV_B1: case GT_DEV_B2: case GT_DEV_B3: case GT_DEV_BOOT: val = s->regs[saddr]; break; /* DMA Record */ case GT_DMA0_CNT: case GT_DMA1_CNT: case GT_DMA2_CNT: case GT_DMA3_CNT: case GT_DMA0_SA: case GT_DMA1_SA: case GT_DMA2_SA: case GT_DMA3_SA: case GT_DMA0_DA: case GT_DMA1_DA: case GT_DMA2_DA: case GT_DMA3_DA: case GT_DMA0_NEXT: case GT_DMA1_NEXT: case GT_DMA2_NEXT: case GT_DMA3_NEXT: case GT_DMA0_CUR: case GT_DMA1_CUR: case GT_DMA2_CUR: case GT_DMA3_CUR: val = s->regs[saddr]; break; /* DMA Channel Control */ case GT_DMA0_CTRL: case GT_DMA1_CTRL: case GT_DMA2_CTRL: case GT_DMA3_CTRL: val = s->regs[saddr]; break; /* DMA Arbiter */ case GT_DMA_ARB: val = s->regs[saddr]; break; /* Timer/Counter */ case GT_TC0: case GT_TC1: case GT_TC2: case GT_TC3: case GT_TC_CONTROL: val = s->regs[saddr]; break; /* PCI Internal */ case GT_PCI0_CFGADDR: val = phb->config_reg; break; case GT_PCI0_CFGDATA: if (!(phb->config_reg & (1 << 31))) { val = 0xffffffff; } else { val = pci_data_read(phb->bus, phb->config_reg, 4); } if (!(s->regs[GT_PCI0_CMD] & 1) && (phb->config_reg & 0x00fff800)) { val = bswap32(val); } break; case GT_PCI0_CMD: case GT_PCI0_TOR: case GT_PCI0_BS_SCS10: case GT_PCI0_BS_SCS32: case GT_PCI0_BS_CS20: case GT_PCI0_BS_CS3BT: case GT_PCI1_IACK: case GT_PCI0_BARE: case GT_PCI0_PREFMBR: case GT_PCI0_SCS10_BAR: case GT_PCI0_SCS32_BAR: case GT_PCI0_CS20_BAR: case GT_PCI0_CS3BT_BAR: case GT_PCI0_SSCS10_BAR: case GT_PCI0_SSCS32_BAR: case GT_PCI0_SCS3BT_BAR: case GT_PCI1_CMD: case GT_PCI1_TOR: case GT_PCI1_BS_SCS10: case GT_PCI1_BS_SCS32: case GT_PCI1_BS_CS20: case GT_PCI1_BS_CS3BT: case GT_PCI1_BARE: case GT_PCI1_PREFMBR: case GT_PCI1_SCS10_BAR: case GT_PCI1_SCS32_BAR: case GT_PCI1_CS20_BAR: case GT_PCI1_CS3BT_BAR: case GT_PCI1_SSCS10_BAR: case GT_PCI1_SSCS32_BAR: case GT_PCI1_SCS3BT_BAR: case GT_PCI1_CFGADDR: case GT_PCI1_CFGDATA: val = s->regs[saddr]; break; /* Interrupts */ case GT_INTRCAUSE: val = s->regs[saddr]; DPRINTF("INTRCAUSE %x\n", val); break; case GT_INTRMASK: val = s->regs[saddr]; DPRINTF("INTRMASK %x\n", val); break; case GT_PCI0_ICMASK: val = s->regs[saddr]; DPRINTF("ICMASK %x\n", val); break; case GT_PCI0_SERR0MASK: val = s->regs[saddr]; DPRINTF("SERR0MASK %x\n", val); break; /* Reserved when only PCI_0 is configured. */ case GT_HINTRCAUSE: case GT_CPU_INTSEL: case GT_PCI0_INTSEL: case GT_HINTRMASK: case GT_PCI0_HICMASK: case GT_PCI1_SERR1MASK: val = s->regs[saddr]; break; default: val = s->regs[saddr]; DPRINTF ("Bad register offset 0x%x\n", (int)addr); break; } if (!(s->regs[GT_CPU] & 0x00001000)) val = bswap32(val); return val; } static const MemoryRegionOps isd_mem_ops = { .read = gt64120_readl, .write = gt64120_writel, .endianness = DEVICE_NATIVE_ENDIAN, }; static int gt64120_pci_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; } } static int pci_irq_levels[4]; static void gt64120_pci_set_irq(void *opaque, int irq_num, int level) { int i, pic_irq, pic_level; qemu_irq *pic = opaque; 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); } } static void gt64120_reset(DeviceState *dev) { GT64120State *s = GT64120_PCI_HOST_BRIDGE(dev); /* FIXME: Malta specific hw assumptions ahead */ /* CPU Configuration */ #ifdef TARGET_WORDS_BIGENDIAN s->regs[GT_CPU] = 0x00000000; #else s->regs[GT_CPU] = 0x00001000; #endif s->regs[GT_MULTI] = 0x00000003; /* CPU Address decode */ s->regs[GT_SCS10LD] = 0x00000000; s->regs[GT_SCS10HD] = 0x00000007; s->regs[GT_SCS32LD] = 0x00000008; s->regs[GT_SCS32HD] = 0x0000000f; s->regs[GT_CS20LD] = 0x000000e0; s->regs[GT_CS20HD] = 0x00000070; s->regs[GT_CS3BOOTLD] = 0x000000f8; s->regs[GT_CS3BOOTHD] = 0x0000007f; s->regs[GT_PCI0IOLD] = 0x00000080; s->regs[GT_PCI0IOHD] = 0x0000000f; s->regs[GT_PCI0M0LD] = 0x00000090; s->regs[GT_PCI0M0HD] = 0x0000001f; s->regs[GT_ISD] = 0x000000a0; 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_SCS10AR] = 0x00000000; s->regs[GT_SCS32AR] = 0x00000008; s->regs[GT_CS20R] = 0x000000e0; s->regs[GT_CS3BOOTR] = 0x000000f8; 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; /* CPU Sync Barrier */ s->regs[GT_PCI0SYNC] = 0x00000000; s->regs[GT_PCI1SYNC] = 0x00000000; /* SDRAM and Device Address Decode */ s->regs[GT_SCS0LD] = 0x00000000; s->regs[GT_SCS0HD] = 0x00000007; s->regs[GT_SCS1LD] = 0x00000008; s->regs[GT_SCS1HD] = 0x0000000f; s->regs[GT_SCS2LD] = 0x00000010; s->regs[GT_SCS2HD] = 0x00000017; s->regs[GT_SCS3LD] = 0x00000018; s->regs[GT_SCS3HD] = 0x0000001f; s->regs[GT_CS0LD] = 0x000000c0; s->regs[GT_CS0HD] = 0x000000c7; s->regs[GT_CS1LD] = 0x000000c8; s->regs[GT_CS1HD] = 0x000000cf; s->regs[GT_CS2LD] = 0x000000d0; s->regs[GT_CS2HD] = 0x000000df; s->regs[GT_CS3LD] = 0x000000f0; s->regs[GT_CS3HD] = 0x000000fb; s->regs[GT_BOOTLD] = 0x000000fc; s->regs[GT_BOOTHD] = 0x000000ff; s->regs[GT_ADERR] = 0xffffffff; /* SDRAM Configuration */ s->regs[GT_SDRAM_CFG] = 0x00000200; s->regs[GT_SDRAM_OPMODE] = 0x00000000; s->regs[GT_SDRAM_BM] = 0x00000007; s->regs[GT_SDRAM_ADDRDECODE] = 0x00000002; /* 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; /* 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; /* Device Parameters */ s->regs[GT_DEV_B0] = 0x386fffff; s->regs[GT_DEV_B1] = 0x386fffff; s->regs[GT_DEV_B2] = 0x386fffff; s->regs[GT_DEV_B3] = 0x386fffff; s->regs[GT_DEV_BOOT] = 0x146fffff; /* DMA registers are all zeroed at reset */ /* Timer/Counter */ s->regs[GT_TC0] = 0xffffffff; s->regs[GT_TC1] = 0x00ffffff; s->regs[GT_TC2] = 0x00ffffff; s->regs[GT_TC3] = 0x00ffffff; s->regs[GT_TC_CONTROL] = 0x00000000; /* PCI Internal */ #ifdef TARGET_WORDS_BIGENDIAN s->regs[GT_PCI0_CMD] = 0x00000000; #else s->regs[GT_PCI0_CMD] = 0x00010001; #endif s->regs[GT_PCI0_TOR] = 0x0000070f; s->regs[GT_PCI0_BS_SCS10] = 0x00fff000; s->regs[GT_PCI0_BS_SCS32] = 0x00fff000; s->regs[GT_PCI0_BS_CS20] = 0x01fff000; s->regs[GT_PCI0_BS_CS3BT] = 0x00fff000; s->regs[GT_PCI1_IACK] = 0x00000000; s->regs[GT_PCI0_IACK] = 0x00000000; s->regs[GT_PCI0_BARE] = 0x0000000f; s->regs[GT_PCI0_PREFMBR] = 0x00000040; s->regs[GT_PCI0_SCS10_BAR] = 0x00000000; s->regs[GT_PCI0_SCS32_BAR] = 0x01000000; s->regs[GT_PCI0_CS20_BAR] = 0x1c000000; s->regs[GT_PCI0_CS3BT_BAR] = 0x1f000000; s->regs[GT_PCI0_SSCS10_BAR] = 0x00000000; s->regs[GT_PCI0_SSCS32_BAR] = 0x01000000; s->regs[GT_PCI0_SCS3BT_BAR] = 0x1f000000; #ifdef TARGET_WORDS_BIGENDIAN s->regs[GT_PCI1_CMD] = 0x00000000; #else s->regs[GT_PCI1_CMD] = 0x00010001; #endif s->regs[GT_PCI1_TOR] = 0x0000070f; s->regs[GT_PCI1_BS_SCS10] = 0x00fff000; s->regs[GT_PCI1_BS_SCS32] = 0x00fff000; s->regs[GT_PCI1_BS_CS20] = 0x01fff000; s->regs[GT_PCI1_BS_CS3BT] = 0x00fff000; s->regs[GT_PCI1_BARE] = 0x0000000f; s->regs[GT_PCI1_PREFMBR] = 0x00000040; s->regs[GT_PCI1_SCS10_BAR] = 0x00000000; s->regs[GT_PCI1_SCS32_BAR] = 0x01000000; s->regs[GT_PCI1_CS20_BAR] = 0x1c000000; s->regs[GT_PCI1_CS3BT_BAR] = 0x1f000000; s->regs[GT_PCI1_SSCS10_BAR] = 0x00000000; s->regs[GT_PCI1_SSCS32_BAR] = 0x01000000; s->regs[GT_PCI1_SCS3BT_BAR] = 0x1f000000; s->regs[GT_PCI1_CFGADDR] = 0x00000000; s->regs[GT_PCI1_CFGDATA] = 0x00000000; s->regs[GT_PCI0_CFGADDR] = 0x00000000; /* Interrupt registers are all zeroed at reset */ gt64120_isd_mapping(s); gt64120_pci_mapping(s); } PCIBus *gt64120_register(qemu_irq *pic) { GT64120State *d; PCIHostState *phb; DeviceState *dev; dev = qdev_create(NULL, TYPE_GT64120_PCI_HOST_BRIDGE); d = GT64120_PCI_HOST_BRIDGE(dev); phb = PCI_HOST_BRIDGE(dev); memory_region_init(&d->pci0_mem, OBJECT(dev), "pci0-mem", UINT32_MAX); address_space_init(&d->pci0_mem_as, &d->pci0_mem, "pci0-mem"); phb->bus = pci_register_root_bus(dev, "pci", gt64120_pci_set_irq, gt64120_pci_map_irq, pic, &d->pci0_mem, get_system_io(), PCI_DEVFN(18, 0), 4, TYPE_PCI_BUS); qdev_init_nofail(dev); memory_region_init_io(&d->ISD_mem, OBJECT(dev), &isd_mem_ops, d, "isd-mem", 0x1000); pci_create_simple(phb->bus, PCI_DEVFN(0, 0), "gt64120_pci"); return phb->bus; } static void gt64120_pci_realize(PCIDevice *d, Error **errp) { /* FIXME: Malta specific hw assumptions ahead */ pci_set_word(d->config + PCI_COMMAND, 0); pci_set_word(d->config + PCI_STATUS, PCI_STATUS_FAST_BACK | PCI_STATUS_DEVSEL_MEDIUM); pci_config_set_prog_interface(d->config, 0); pci_set_long(d->config + PCI_BASE_ADDRESS_0, 0x00000008); pci_set_long(d->config + PCI_BASE_ADDRESS_1, 0x01000008); pci_set_long(d->config + PCI_BASE_ADDRESS_2, 0x1c000000); pci_set_long(d->config + PCI_BASE_ADDRESS_3, 0x1f000000); pci_set_long(d->config + PCI_BASE_ADDRESS_4, 0x14000000); pci_set_long(d->config + PCI_BASE_ADDRESS_5, 0x14000001); pci_set_byte(d->config + 0x3d, 0x01); } static void gt64120_pci_class_init(ObjectClass *klass, void *data) { PCIDeviceClass *k = PCI_DEVICE_CLASS(klass); DeviceClass *dc = DEVICE_CLASS(klass); k->realize = gt64120_pci_realize; k->vendor_id = PCI_VENDOR_ID_MARVELL; k->device_id = PCI_DEVICE_ID_MARVELL_GT6412X; k->revision = 0x10; k->class_id = PCI_CLASS_BRIDGE_HOST; /* * 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 gt64120_pci_info = { .name = "gt64120_pci", .parent = TYPE_PCI_DEVICE, .instance_size = sizeof(PCIDevice), .class_init = gt64120_pci_class_init, .interfaces = (InterfaceInfo[]) { { INTERFACE_CONVENTIONAL_PCI_DEVICE }, { }, }, }; static void gt64120_class_init(ObjectClass *klass, void *data) { DeviceClass *dc = DEVICE_CLASS(klass); set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); dc->reset = gt64120_reset; dc->vmsd = &vmstate_gt64120; } static const TypeInfo gt64120_info = { .name = TYPE_GT64120_PCI_HOST_BRIDGE, .parent = TYPE_PCI_HOST_BRIDGE, .instance_size = sizeof(GT64120State), .class_init = gt64120_class_init, }; static void gt64120_pci_register_types(void) { type_register_static(>64120_info); type_register_static(>64120_pci_info); } type_init(gt64120_pci_register_types)