| /* |
| * QEMU GT64120 PCI host |
| * |
| * (Datasheet GT-64120 Rev 1.4 from Sep 14, 1999) |
| * |
| * 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 "qapi/error.h" |
| #include "qemu/units.h" |
| #include "qemu/log.h" |
| #include "hw/qdev-properties.h" |
| #include "hw/registerfields.h" |
| #include "hw/pci/pci_device.h" |
| #include "hw/pci/pci_host.h" |
| #include "hw/misc/empty_slot.h" |
| #include "migration/vmstate.h" |
| #include "hw/intc/i8259.h" |
| #include "hw/irq.h" |
| #include "trace.h" |
| #include "qom/object.h" |
| |
| #define GT_REGS (0x1000 >> 2) |
| |
| /* CPU Configuration */ |
| #define GT_CPU (0x000 >> 2) |
| #define GT_MULTI (0x120 >> 2) |
| |
| REG32(GT_CPU, 0x000) |
| FIELD(GT_CPU, Endianness, 12, 1) |
| |
| /* 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) |
| |
| REG32(GT_PCI0_CMD, 0xc00) |
| FIELD(GT_PCI0_CMD, MByteSwap, 0, 1) |
| FIELD(GT_PCI0_CMD, SByteSwap, 16, 1) |
| #define R_GT_PCI0_CMD_ByteSwap_MASK \ |
| (R_GT_PCI0_CMD_MByteSwap_MASK | R_GT_PCI0_CMD_SByteSwap_MASK) |
| REG32(GT_PCI1_CMD, 0xc80) |
| FIELD(GT_PCI1_CMD, MByteSwap, 0, 1) |
| FIELD(GT_PCI1_CMD, SByteSwap, 16, 1) |
| #define R_GT_PCI1_CMD_ByteSwap_MASK \ |
| (R_GT_PCI1_CMD_MByteSwap_MASK | R_GT_PCI1_CMD_SByteSwap_MASK) |
| |
| /* 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" |
| |
| OBJECT_DECLARE_SIMPLE_TYPE(GT64120State, GT64120_PCI_HOST_BRIDGE) |
| |
| 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; |
| |
| /* properties */ |
| bool cpu_little_endian; |
| }; |
| |
| /* 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; |
| |
| memory_region_transaction_begin(); |
| |
| if (s->ISD_length) { |
| memory_region_del_subregion(get_system_memory(), &s->ISD_mem); |
| } |
| check_reserved_space(&start, &length); |
| length = 0x1000; |
| /* Map new address */ |
| trace_gt64120_isd_remap(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); |
| |
| memory_region_transaction_commit(); |
| } |
| |
| static void gt64120_update_pci_cfgdata_mapping(GT64120State *s) |
| { |
| /* Indexed on MByteSwap bit, see Table 158: PCI_0 Command, Offset: 0xc00 */ |
| static const MemoryRegionOps *pci_host_data_ops[] = { |
| &pci_host_data_be_ops, &pci_host_data_le_ops |
| }; |
| PCIHostState *phb = PCI_HOST_BRIDGE(s); |
| |
| memory_region_transaction_begin(); |
| |
| /* |
| * The setting of the MByteSwap bit and MWordSwap bit in the PCI Internal |
| * Command Register determines how data transactions from the CPU to/from |
| * PCI are handled along with the setting of the Endianness bit in the CPU |
| * Configuration Register. See: |
| * - Table 16: 32-bit PCI Transaction Endianness |
| * - Table 158: PCI_0 Command, Offset: 0xc00 |
| */ |
| |
| if (memory_region_is_mapped(&phb->data_mem)) { |
| memory_region_del_subregion(&s->ISD_mem, &phb->data_mem); |
| object_unparent(OBJECT(&phb->data_mem)); |
| } |
| memory_region_init_io(&phb->data_mem, OBJECT(phb), |
| pci_host_data_ops[s->regs[GT_PCI0_CMD] & 1], |
| s, "pci-conf-data", 4); |
| memory_region_add_subregion_overlap(&s->ISD_mem, GT_PCI0_CFGDATA << 2, |
| &phb->data_mem, 1); |
| |
| memory_region_transaction_commit(); |
| } |
| |
| static void gt64120_pci_mapping(GT64120State *s) |
| { |
| memory_region_transaction_begin(); |
| |
| /* 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); |
| } |
| } |
| |
| memory_region_transaction_commit(); |
| } |
| |
| 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 = (const 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; |
| uint32_t saddr = addr >> 2; |
| |
| trace_gt64120_write(addr, val); |
| if (!(s->regs[GT_CPU] & 0x00001000)) { |
| val = bswap32(val); |
| } |
| |
| 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 */ |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "gt64120: Read-only register write " |
| "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", |
| saddr << 2, size, size << 1, val); |
| break; |
| |
| /* CPU Sync Barrier */ |
| case GT_PCI0SYNC: |
| case GT_PCI1SYNC: |
| /* Read-only registers, do nothing */ |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "gt64120: Read-only register write " |
| "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", |
| saddr << 2, size, size << 1, val); |
| 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 */ |
| qemu_log_mask(LOG_UNIMP, |
| "gt64120: Unimplemented device register write " |
| "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", |
| saddr << 2, size, size << 1, val); |
| 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 */ |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "gt64120: Read-only register write " |
| "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", |
| saddr << 2, size, size << 1, val); |
| 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: |
| |
| /* DMA Channel Control */ |
| case GT_DMA0_CTRL: |
| case GT_DMA1_CTRL: |
| case GT_DMA2_CTRL: |
| case GT_DMA3_CTRL: |
| |
| /* DMA Arbiter */ |
| case GT_DMA_ARB: |
| /* Not implemented */ |
| qemu_log_mask(LOG_UNIMP, |
| "gt64120: Unimplemented DMA register write " |
| "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", |
| saddr << 2, size, size << 1, val); |
| break; |
| |
| /* Timer/Counter */ |
| case GT_TC0: |
| case GT_TC1: |
| case GT_TC2: |
| case GT_TC3: |
| case GT_TC_CONTROL: |
| /* Not implemented */ |
| qemu_log_mask(LOG_UNIMP, |
| "gt64120: Unimplemented timer register write " |
| "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", |
| saddr << 2, size, size << 1, val); |
| break; |
| |
| /* PCI Internal */ |
| case GT_PCI0_CMD: |
| case GT_PCI1_CMD: |
| s->regs[saddr] = val & 0x0401fc0f; |
| gt64120_update_pci_cfgdata_mapping(s); |
| 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 */ |
| qemu_log_mask(LOG_UNIMP, |
| "gt64120: Unimplemented PCI register write " |
| "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", |
| saddr << 2, size, size << 1, val); |
| break; |
| case GT_PCI0_CFGADDR: |
| case GT_PCI0_CFGDATA: |
| /* Mapped via in gt64120_pci_mapping() */ |
| g_assert_not_reached(); |
| break; |
| |
| /* Interrupts */ |
| case GT_INTRCAUSE: |
| /* not really implemented */ |
| s->regs[saddr] = ~(~(s->regs[saddr]) | ~(val & 0xfffffffe)); |
| s->regs[saddr] |= !!(s->regs[saddr] & 0xfffffffe); |
| trace_gt64120_write_intreg("INTRCAUSE", size, val); |
| break; |
| case GT_INTRMASK: |
| s->regs[saddr] = val & 0x3c3ffffe; |
| trace_gt64120_write_intreg("INTRMASK", size, val); |
| break; |
| case GT_PCI0_ICMASK: |
| s->regs[saddr] = val & 0x03fffffe; |
| trace_gt64120_write_intreg("ICMASK", size, val); |
| break; |
| case GT_PCI0_SERR0MASK: |
| s->regs[saddr] = val & 0x0000003f; |
| trace_gt64120_write_intreg("SERR0MASK", size, 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: |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "gt64120: Illegal register write " |
| "reg:0x%03x size:%u value:0x%0*" PRIx64 "\n", |
| saddr << 2, size, size << 1, val); |
| break; |
| } |
| } |
| |
| static uint64_t gt64120_readl(void *opaque, |
| hwaddr addr, unsigned size) |
| { |
| GT64120State *s = opaque; |
| uint32_t val; |
| uint32_t saddr = addr >> 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: |
| case GT_PCI0_CFGDATA: |
| /* Mapped via in gt64120_pci_mapping() */ |
| g_assert_not_reached(); |
| 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]; |
| trace_gt64120_read_intreg("INTRCAUSE", size, val); |
| break; |
| case GT_INTRMASK: |
| val = s->regs[saddr]; |
| trace_gt64120_read_intreg("INTRMASK", size, val); |
| break; |
| case GT_PCI0_ICMASK: |
| val = s->regs[saddr]; |
| trace_gt64120_read_intreg("ICMASK", size, val); |
| break; |
| case GT_PCI0_SERR0MASK: |
| val = s->regs[saddr]; |
| trace_gt64120_read_intreg("SERR0MASK", size, 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]; |
| qemu_log_mask(LOG_GUEST_ERROR, |
| "gt64120: Illegal register read " |
| "reg:0x%03x size:%u value:0x%0*x\n", |
| saddr << 2, size, size << 1, val); |
| break; |
| } |
| |
| if (!(s->regs[GT_CPU] & 0x00001000)) { |
| val = bswap32(val); |
| } |
| trace_gt64120_read(addr, val); |
| |
| return val; |
| } |
| |
| static const MemoryRegionOps isd_mem_ops = { |
| .read = gt64120_readl, |
| .write = gt64120_writel, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| .impl = { |
| .min_access_size = 4, |
| .max_access_size = 4, |
| }, |
| }; |
| |
| static void gt64120_reset(DeviceState *dev) |
| { |
| GT64120State *s = GT64120_PCI_HOST_BRIDGE(dev); |
| |
| /* FIXME: Malta specific hw assumptions ahead */ |
| |
| /* CPU Configuration */ |
| s->regs[GT_CPU] = s->cpu_little_endian ? R_GT_CPU_Endianness_MASK : 0; |
| 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 */ |
| s->regs[GT_PCI0_CMD] = s->cpu_little_endian ? R_GT_PCI0_CMD_ByteSwap_MASK : 0; |
| 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; |
| s->regs[GT_PCI1_CMD] = s->cpu_little_endian ? R_GT_PCI1_CMD_ByteSwap_MASK : 0; |
| 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); |
| gt64120_update_pci_cfgdata_mapping(s); |
| } |
| |
| static void gt64120_realize(DeviceState *dev, Error **errp) |
| { |
| GT64120State *s = GT64120_PCI_HOST_BRIDGE(dev); |
| PCIHostState *phb = PCI_HOST_BRIDGE(dev); |
| |
| memory_region_init_io(&s->ISD_mem, OBJECT(dev), &isd_mem_ops, s, |
| "gt64120-isd", 0x1000); |
| memory_region_init(&s->pci0_mem, OBJECT(dev), "pci0-mem", 4 * GiB); |
| address_space_init(&s->pci0_mem_as, &s->pci0_mem, "pci0-mem"); |
| phb->bus = pci_root_bus_new(dev, "pci", |
| &s->pci0_mem, |
| get_system_io(), |
| PCI_DEVFN(18, 0), TYPE_PCI_BUS); |
| |
| pci_create_simple(phb->bus, PCI_DEVFN(0, 0), "gt64120_pci"); |
| memory_region_init_io(&phb->conf_mem, OBJECT(phb), |
| &pci_host_conf_le_ops, |
| s, "pci-conf-idx", 4); |
| memory_region_add_subregion_overlap(&s->ISD_mem, GT_PCI0_CFGADDR << 2, |
| &phb->conf_mem, 1); |
| |
| |
| /* |
| * The whole address space decoded by the GT-64120A doesn't generate |
| * exception when accessing invalid memory. Create an empty slot to |
| * emulate this feature. |
| */ |
| empty_slot_init("GT64120", 0, 0x20000000); |
| } |
| |
| static void gt64120_pci_realize(PCIDevice *d, Error **errp) |
| { |
| /* Values from chapter 17.16 "PCI Configuration" */ |
| |
| pci_set_long(d->wmask + PCI_BASE_ADDRESS_0, 0xfffff008); /* SCS[1:0] */ |
| pci_set_long(d->wmask + PCI_BASE_ADDRESS_1, 0xfffff008); /* SCS[3:2] */ |
| pci_set_long(d->wmask + PCI_BASE_ADDRESS_2, 0xfffff008); /* CS[2:0] */ |
| pci_set_long(d->wmask + PCI_BASE_ADDRESS_3, 0xfffff008); /* CS[3], BootCS */ |
| pci_set_long(d->wmask + PCI_BASE_ADDRESS_4, 0xfffff000); /* ISD MMIO */ |
| pci_set_long(d->wmask + PCI_BASE_ADDRESS_5, 0xfffff001); /* ISD I/O */ |
| } |
| |
| static void gt64120_pci_reset_hold(Object *obj, ResetType type) |
| { |
| PCIDevice *d = PCI_DEVICE(obj); |
| |
| /* Values from chapter 17.16 "PCI Configuration" */ |
| |
| 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); |
| ResettableClass *rc = RESETTABLE_CLASS(klass); |
| |
| rc->phases.hold = gt64120_pci_reset_hold; |
| 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 Property gt64120_properties[] = { |
| DEFINE_PROP_BOOL("cpu-little-endian", GT64120State, |
| cpu_little_endian, false), |
| DEFINE_PROP_END_OF_LIST(), |
| }; |
| |
| static void gt64120_class_init(ObjectClass *klass, void *data) |
| { |
| DeviceClass *dc = DEVICE_CLASS(klass); |
| |
| set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories); |
| device_class_set_props(dc, gt64120_properties); |
| dc->realize = gt64120_realize; |
| 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) |
