| /* |
| * QEMU PowerPC 405 evaluation boards emulation |
| * |
| * Copyright (c) 2007 Jocelyn Mayer |
| * |
| * 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 "qemu/units.h" |
| #include "qapi/error.h" |
| #include "qemu-common.h" |
| #include "cpu.h" |
| #include "hw/hw.h" |
| #include "hw/ppc/ppc.h" |
| #include "ppc405.h" |
| #include "hw/timer/m48t59.h" |
| #include "hw/block/flash.h" |
| #include "sysemu/sysemu.h" |
| #include "sysemu/qtest.h" |
| #include "sysemu/block-backend.h" |
| #include "hw/boards.h" |
| #include "qemu/log.h" |
| #include "qemu/error-report.h" |
| #include "hw/loader.h" |
| #include "exec/address-spaces.h" |
| |
| #define BIOS_FILENAME "ppc405_rom.bin" |
| #define BIOS_SIZE (2 * MiB) |
| |
| #define KERNEL_LOAD_ADDR 0x00000000 |
| #define INITRD_LOAD_ADDR 0x01800000 |
| |
| #define USE_FLASH_BIOS |
| |
| //#define DEBUG_BOARD_INIT |
| |
| /*****************************************************************************/ |
| /* PPC405EP reference board (IBM) */ |
| /* Standalone board with: |
| * - PowerPC 405EP CPU |
| * - SDRAM (0x00000000) |
| * - Flash (0xFFF80000) |
| * - SRAM (0xFFF00000) |
| * - NVRAM (0xF0000000) |
| * - FPGA (0xF0300000) |
| */ |
| typedef struct ref405ep_fpga_t ref405ep_fpga_t; |
| struct ref405ep_fpga_t { |
| uint8_t reg0; |
| uint8_t reg1; |
| }; |
| |
| static uint64_t ref405ep_fpga_readb(void *opaque, hwaddr addr, unsigned size) |
| { |
| ref405ep_fpga_t *fpga; |
| uint32_t ret; |
| |
| fpga = opaque; |
| switch (addr) { |
| case 0x0: |
| ret = fpga->reg0; |
| break; |
| case 0x1: |
| ret = fpga->reg1; |
| break; |
| default: |
| ret = 0; |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static void ref405ep_fpga_writeb(void *opaque, hwaddr addr, uint64_t value, |
| unsigned size) |
| { |
| ref405ep_fpga_t *fpga; |
| |
| fpga = opaque; |
| switch (addr) { |
| case 0x0: |
| /* Read only */ |
| break; |
| case 0x1: |
| fpga->reg1 = value; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static const MemoryRegionOps ref405ep_fpga_ops = { |
| .read = ref405ep_fpga_readb, |
| .write = ref405ep_fpga_writeb, |
| .impl.min_access_size = 1, |
| .impl.max_access_size = 1, |
| .valid.min_access_size = 1, |
| .valid.max_access_size = 4, |
| .endianness = DEVICE_BIG_ENDIAN, |
| }; |
| |
| static void ref405ep_fpga_reset (void *opaque) |
| { |
| ref405ep_fpga_t *fpga; |
| |
| fpga = opaque; |
| fpga->reg0 = 0x00; |
| fpga->reg1 = 0x0F; |
| } |
| |
| static void ref405ep_fpga_init(MemoryRegion *sysmem, uint32_t base) |
| { |
| ref405ep_fpga_t *fpga; |
| MemoryRegion *fpga_memory = g_new(MemoryRegion, 1); |
| |
| fpga = g_malloc0(sizeof(ref405ep_fpga_t)); |
| memory_region_init_io(fpga_memory, NULL, &ref405ep_fpga_ops, fpga, |
| "fpga", 0x00000100); |
| memory_region_add_subregion(sysmem, base, fpga_memory); |
| qemu_register_reset(&ref405ep_fpga_reset, fpga); |
| } |
| |
| static void ref405ep_init(MachineState *machine) |
| { |
| ram_addr_t ram_size = machine->ram_size; |
| const char *kernel_filename = machine->kernel_filename; |
| const char *kernel_cmdline = machine->kernel_cmdline; |
| const char *initrd_filename = machine->initrd_filename; |
| char *filename; |
| ppc4xx_bd_info_t bd; |
| CPUPPCState *env; |
| qemu_irq *pic; |
| MemoryRegion *bios; |
| MemoryRegion *sram = g_new(MemoryRegion, 1); |
| ram_addr_t bdloc; |
| MemoryRegion *ram_memories = g_malloc(2 * sizeof(*ram_memories)); |
| hwaddr ram_bases[2], ram_sizes[2]; |
| target_ulong sram_size; |
| long bios_size; |
| //int phy_addr = 0; |
| //static int phy_addr = 1; |
| target_ulong kernel_base, initrd_base; |
| long kernel_size, initrd_size; |
| int linux_boot; |
| int fl_idx, fl_sectors, len; |
| DriveInfo *dinfo; |
| MemoryRegion *sysmem = get_system_memory(); |
| |
| /* XXX: fix this */ |
| memory_region_allocate_system_memory(&ram_memories[0], NULL, "ef405ep.ram", |
| 0x08000000); |
| ram_bases[0] = 0; |
| ram_sizes[0] = 0x08000000; |
| memory_region_init(&ram_memories[1], NULL, "ef405ep.ram1", 0); |
| ram_bases[1] = 0x00000000; |
| ram_sizes[1] = 0x00000000; |
| ram_size = 128 * MiB; |
| #ifdef DEBUG_BOARD_INIT |
| printf("%s: register cpu\n", __func__); |
| #endif |
| env = ppc405ep_init(sysmem, ram_memories, ram_bases, ram_sizes, |
| 33333333, &pic, kernel_filename == NULL ? 0 : 1); |
| /* allocate SRAM */ |
| sram_size = 512 * KiB; |
| memory_region_init_ram(sram, NULL, "ef405ep.sram", sram_size, |
| &error_fatal); |
| memory_region_add_subregion(sysmem, 0xFFF00000, sram); |
| /* allocate and load BIOS */ |
| #ifdef DEBUG_BOARD_INIT |
| printf("%s: register BIOS\n", __func__); |
| #endif |
| fl_idx = 0; |
| #ifdef USE_FLASH_BIOS |
| dinfo = drive_get(IF_PFLASH, 0, fl_idx); |
| if (dinfo) { |
| BlockBackend *blk = blk_by_legacy_dinfo(dinfo); |
| |
| bios_size = blk_getlength(blk); |
| fl_sectors = (bios_size + 65535) >> 16; |
| #ifdef DEBUG_BOARD_INIT |
| printf("Register parallel flash %d size %lx" |
| " at addr %lx '%s' %d\n", |
| fl_idx, bios_size, -bios_size, |
| blk_name(blk), fl_sectors); |
| #endif |
| pflash_cfi02_register((uint32_t)(-bios_size), |
| NULL, "ef405ep.bios", bios_size, |
| blk, 65536, fl_sectors, 1, |
| 2, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA, |
| 1); |
| fl_idx++; |
| } else |
| #endif |
| { |
| #ifdef DEBUG_BOARD_INIT |
| printf("Load BIOS from file\n"); |
| #endif |
| bios = g_new(MemoryRegion, 1); |
| memory_region_init_ram(bios, NULL, "ef405ep.bios", BIOS_SIZE, |
| &error_fatal); |
| |
| if (bios_name == NULL) |
| bios_name = BIOS_FILENAME; |
| filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); |
| if (filename) { |
| bios_size = load_image(filename, memory_region_get_ram_ptr(bios)); |
| g_free(filename); |
| if (bios_size < 0 || bios_size > BIOS_SIZE) { |
| error_report("Could not load PowerPC BIOS '%s'", bios_name); |
| exit(1); |
| } |
| bios_size = (bios_size + 0xfff) & ~0xfff; |
| memory_region_add_subregion(sysmem, (uint32_t)(-bios_size), bios); |
| } else if (!qtest_enabled() || kernel_filename != NULL) { |
| error_report("Could not load PowerPC BIOS '%s'", bios_name); |
| exit(1); |
| } else { |
| /* Avoid an uninitialized variable warning */ |
| bios_size = -1; |
| } |
| memory_region_set_readonly(bios, true); |
| } |
| /* Register FPGA */ |
| #ifdef DEBUG_BOARD_INIT |
| printf("%s: register FPGA\n", __func__); |
| #endif |
| ref405ep_fpga_init(sysmem, 0xF0300000); |
| /* Register NVRAM */ |
| #ifdef DEBUG_BOARD_INIT |
| printf("%s: register NVRAM\n", __func__); |
| #endif |
| m48t59_init(NULL, 0xF0000000, 0, 8192, 1968, 8); |
| /* Load kernel */ |
| linux_boot = (kernel_filename != NULL); |
| if (linux_boot) { |
| #ifdef DEBUG_BOARD_INIT |
| printf("%s: load kernel\n", __func__); |
| #endif |
| memset(&bd, 0, sizeof(bd)); |
| bd.bi_memstart = 0x00000000; |
| bd.bi_memsize = ram_size; |
| bd.bi_flashstart = -bios_size; |
| bd.bi_flashsize = -bios_size; |
| bd.bi_flashoffset = 0; |
| bd.bi_sramstart = 0xFFF00000; |
| bd.bi_sramsize = sram_size; |
| bd.bi_bootflags = 0; |
| bd.bi_intfreq = 133333333; |
| bd.bi_busfreq = 33333333; |
| bd.bi_baudrate = 115200; |
| bd.bi_s_version[0] = 'Q'; |
| bd.bi_s_version[1] = 'M'; |
| bd.bi_s_version[2] = 'U'; |
| bd.bi_s_version[3] = '\0'; |
| bd.bi_r_version[0] = 'Q'; |
| bd.bi_r_version[1] = 'E'; |
| bd.bi_r_version[2] = 'M'; |
| bd.bi_r_version[3] = 'U'; |
| bd.bi_r_version[4] = '\0'; |
| bd.bi_procfreq = 133333333; |
| bd.bi_plb_busfreq = 33333333; |
| bd.bi_pci_busfreq = 33333333; |
| bd.bi_opbfreq = 33333333; |
| bdloc = ppc405_set_bootinfo(env, &bd, 0x00000001); |
| env->gpr[3] = bdloc; |
| kernel_base = KERNEL_LOAD_ADDR; |
| /* now we can load the kernel */ |
| kernel_size = load_image_targphys(kernel_filename, kernel_base, |
| ram_size - kernel_base); |
| if (kernel_size < 0) { |
| error_report("could not load kernel '%s'", kernel_filename); |
| exit(1); |
| } |
| printf("Load kernel size %ld at " TARGET_FMT_lx, |
| kernel_size, kernel_base); |
| /* load initrd */ |
| if (initrd_filename) { |
| initrd_base = INITRD_LOAD_ADDR; |
| initrd_size = load_image_targphys(initrd_filename, initrd_base, |
| ram_size - initrd_base); |
| if (initrd_size < 0) { |
| error_report("could not load initial ram disk '%s'", |
| initrd_filename); |
| exit(1); |
| } |
| } else { |
| initrd_base = 0; |
| initrd_size = 0; |
| } |
| env->gpr[4] = initrd_base; |
| env->gpr[5] = initrd_size; |
| if (kernel_cmdline != NULL) { |
| len = strlen(kernel_cmdline); |
| bdloc -= ((len + 255) & ~255); |
| cpu_physical_memory_write(bdloc, kernel_cmdline, len + 1); |
| env->gpr[6] = bdloc; |
| env->gpr[7] = bdloc + len; |
| } else { |
| env->gpr[6] = 0; |
| env->gpr[7] = 0; |
| } |
| env->nip = KERNEL_LOAD_ADDR; |
| } else { |
| kernel_base = 0; |
| kernel_size = 0; |
| initrd_base = 0; |
| initrd_size = 0; |
| bdloc = 0; |
| } |
| #ifdef DEBUG_BOARD_INIT |
| printf("bdloc " RAM_ADDR_FMT "\n", bdloc); |
| printf("%s: Done\n", __func__); |
| #endif |
| } |
| |
| static void ref405ep_class_init(ObjectClass *oc, void *data) |
| { |
| MachineClass *mc = MACHINE_CLASS(oc); |
| |
| mc->desc = "ref405ep"; |
| mc->init = ref405ep_init; |
| } |
| |
| static const TypeInfo ref405ep_type = { |
| .name = MACHINE_TYPE_NAME("ref405ep"), |
| .parent = TYPE_MACHINE, |
| .class_init = ref405ep_class_init, |
| }; |
| |
| /*****************************************************************************/ |
| /* AMCC Taihu evaluation board */ |
| /* - PowerPC 405EP processor |
| * - SDRAM 128 MB at 0x00000000 |
| * - Boot flash 2 MB at 0xFFE00000 |
| * - Application flash 32 MB at 0xFC000000 |
| * - 2 serial ports |
| * - 2 ethernet PHY |
| * - 1 USB 1.1 device 0x50000000 |
| * - 1 LCD display 0x50100000 |
| * - 1 CPLD 0x50100000 |
| * - 1 I2C EEPROM |
| * - 1 I2C thermal sensor |
| * - a set of LEDs |
| * - bit-bang SPI port using GPIOs |
| * - 1 EBC interface connector 0 0x50200000 |
| * - 1 cardbus controller + expansion slot. |
| * - 1 PCI expansion slot. |
| */ |
| typedef struct taihu_cpld_t taihu_cpld_t; |
| struct taihu_cpld_t { |
| uint8_t reg0; |
| uint8_t reg1; |
| }; |
| |
| static uint64_t taihu_cpld_read(void *opaque, hwaddr addr, unsigned size) |
| { |
| taihu_cpld_t *cpld; |
| uint32_t ret; |
| |
| cpld = opaque; |
| switch (addr) { |
| case 0x0: |
| ret = cpld->reg0; |
| break; |
| case 0x1: |
| ret = cpld->reg1; |
| break; |
| default: |
| ret = 0; |
| break; |
| } |
| |
| return ret; |
| } |
| |
| static void taihu_cpld_write(void *opaque, hwaddr addr, |
| uint64_t value, unsigned size) |
| { |
| taihu_cpld_t *cpld; |
| |
| cpld = opaque; |
| switch (addr) { |
| case 0x0: |
| /* Read only */ |
| break; |
| case 0x1: |
| cpld->reg1 = value; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| static const MemoryRegionOps taihu_cpld_ops = { |
| .read = taihu_cpld_read, |
| .write = taihu_cpld_write, |
| .impl = { |
| .min_access_size = 1, |
| .max_access_size = 1, |
| }, |
| .endianness = DEVICE_NATIVE_ENDIAN, |
| }; |
| |
| static void taihu_cpld_reset (void *opaque) |
| { |
| taihu_cpld_t *cpld; |
| |
| cpld = opaque; |
| cpld->reg0 = 0x01; |
| cpld->reg1 = 0x80; |
| } |
| |
| static void taihu_cpld_init(MemoryRegion *sysmem, uint32_t base) |
| { |
| taihu_cpld_t *cpld; |
| MemoryRegion *cpld_memory = g_new(MemoryRegion, 1); |
| |
| cpld = g_malloc0(sizeof(taihu_cpld_t)); |
| memory_region_init_io(cpld_memory, NULL, &taihu_cpld_ops, cpld, "cpld", 0x100); |
| memory_region_add_subregion(sysmem, base, cpld_memory); |
| qemu_register_reset(&taihu_cpld_reset, cpld); |
| } |
| |
| static void taihu_405ep_init(MachineState *machine) |
| { |
| ram_addr_t ram_size = machine->ram_size; |
| const char *kernel_filename = machine->kernel_filename; |
| const char *initrd_filename = machine->initrd_filename; |
| char *filename; |
| qemu_irq *pic; |
| MemoryRegion *sysmem = get_system_memory(); |
| MemoryRegion *bios; |
| MemoryRegion *ram_memories = g_malloc(2 * sizeof(*ram_memories)); |
| MemoryRegion *ram = g_malloc0(sizeof(*ram)); |
| hwaddr ram_bases[2], ram_sizes[2]; |
| long bios_size; |
| target_ulong kernel_base, initrd_base; |
| long kernel_size, initrd_size; |
| int linux_boot; |
| int fl_idx, fl_sectors; |
| DriveInfo *dinfo; |
| |
| /* RAM is soldered to the board so the size cannot be changed */ |
| ram_size = 0x08000000; |
| memory_region_allocate_system_memory(ram, NULL, "taihu_405ep.ram", |
| ram_size); |
| |
| ram_bases[0] = 0; |
| ram_sizes[0] = 0x04000000; |
| memory_region_init_alias(&ram_memories[0], NULL, |
| "taihu_405ep.ram-0", ram, ram_bases[0], |
| ram_sizes[0]); |
| ram_bases[1] = 0x04000000; |
| ram_sizes[1] = 0x04000000; |
| memory_region_init_alias(&ram_memories[1], NULL, |
| "taihu_405ep.ram-1", ram, ram_bases[1], |
| ram_sizes[1]); |
| #ifdef DEBUG_BOARD_INIT |
| printf("%s: register cpu\n", __func__); |
| #endif |
| ppc405ep_init(sysmem, ram_memories, ram_bases, ram_sizes, |
| 33333333, &pic, kernel_filename == NULL ? 0 : 1); |
| /* allocate and load BIOS */ |
| #ifdef DEBUG_BOARD_INIT |
| printf("%s: register BIOS\n", __func__); |
| #endif |
| fl_idx = 0; |
| #if defined(USE_FLASH_BIOS) |
| dinfo = drive_get(IF_PFLASH, 0, fl_idx); |
| if (dinfo) { |
| BlockBackend *blk = blk_by_legacy_dinfo(dinfo); |
| |
| bios_size = blk_getlength(blk); |
| /* XXX: should check that size is 2MB */ |
| // bios_size = 2 * 1024 * 1024; |
| fl_sectors = (bios_size + 65535) >> 16; |
| #ifdef DEBUG_BOARD_INIT |
| printf("Register parallel flash %d size %lx" |
| " at addr %lx '%s' %d\n", |
| fl_idx, bios_size, -bios_size, |
| blk_name(blk), fl_sectors); |
| #endif |
| pflash_cfi02_register((uint32_t)(-bios_size), |
| NULL, "taihu_405ep.bios", bios_size, |
| blk, 65536, fl_sectors, 1, |
| 4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA, |
| 1); |
| fl_idx++; |
| } else |
| #endif |
| { |
| #ifdef DEBUG_BOARD_INIT |
| printf("Load BIOS from file\n"); |
| #endif |
| if (bios_name == NULL) |
| bios_name = BIOS_FILENAME; |
| bios = g_new(MemoryRegion, 1); |
| memory_region_init_ram(bios, NULL, "taihu_405ep.bios", BIOS_SIZE, |
| &error_fatal); |
| filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); |
| if (filename) { |
| bios_size = load_image(filename, memory_region_get_ram_ptr(bios)); |
| g_free(filename); |
| if (bios_size < 0 || bios_size > BIOS_SIZE) { |
| error_report("Could not load PowerPC BIOS '%s'", bios_name); |
| exit(1); |
| } |
| bios_size = (bios_size + 0xfff) & ~0xfff; |
| memory_region_add_subregion(sysmem, (uint32_t)(-bios_size), bios); |
| } else if (!qtest_enabled()) { |
| error_report("Could not load PowerPC BIOS '%s'", bios_name); |
| exit(1); |
| } |
| memory_region_set_readonly(bios, true); |
| } |
| /* Register Linux flash */ |
| dinfo = drive_get(IF_PFLASH, 0, fl_idx); |
| if (dinfo) { |
| BlockBackend *blk = blk_by_legacy_dinfo(dinfo); |
| |
| bios_size = blk_getlength(blk); |
| /* XXX: should check that size is 32MB */ |
| bios_size = 32 * MiB; |
| fl_sectors = (bios_size + 65535) >> 16; |
| #ifdef DEBUG_BOARD_INIT |
| printf("Register parallel flash %d size %lx" |
| " at addr " TARGET_FMT_lx " '%s'\n", |
| fl_idx, bios_size, (target_ulong)0xfc000000, |
| blk_name(blk)); |
| #endif |
| pflash_cfi02_register(0xfc000000, NULL, "taihu_405ep.flash", bios_size, |
| blk, 65536, fl_sectors, 1, |
| 4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA, |
| 1); |
| fl_idx++; |
| } |
| /* Register CLPD & LCD display */ |
| #ifdef DEBUG_BOARD_INIT |
| printf("%s: register CPLD\n", __func__); |
| #endif |
| taihu_cpld_init(sysmem, 0x50100000); |
| /* Load kernel */ |
| linux_boot = (kernel_filename != NULL); |
| if (linux_boot) { |
| #ifdef DEBUG_BOARD_INIT |
| printf("%s: load kernel\n", __func__); |
| #endif |
| kernel_base = KERNEL_LOAD_ADDR; |
| /* now we can load the kernel */ |
| kernel_size = load_image_targphys(kernel_filename, kernel_base, |
| ram_size - kernel_base); |
| if (kernel_size < 0) { |
| error_report("could not load kernel '%s'", kernel_filename); |
| exit(1); |
| } |
| /* load initrd */ |
| if (initrd_filename) { |
| initrd_base = INITRD_LOAD_ADDR; |
| initrd_size = load_image_targphys(initrd_filename, initrd_base, |
| ram_size - initrd_base); |
| if (initrd_size < 0) { |
| error_report("could not load initial ram disk '%s'", |
| initrd_filename); |
| exit(1); |
| } |
| } else { |
| initrd_base = 0; |
| initrd_size = 0; |
| } |
| } else { |
| kernel_base = 0; |
| kernel_size = 0; |
| initrd_base = 0; |
| initrd_size = 0; |
| } |
| #ifdef DEBUG_BOARD_INIT |
| printf("%s: Done\n", __func__); |
| #endif |
| } |
| |
| static void taihu_class_init(ObjectClass *oc, void *data) |
| { |
| MachineClass *mc = MACHINE_CLASS(oc); |
| |
| mc->desc = "taihu"; |
| mc->init = taihu_405ep_init; |
| } |
| |
| static const TypeInfo taihu_type = { |
| .name = MACHINE_TYPE_NAME("taihu"), |
| .parent = TYPE_MACHINE, |
| .class_init = taihu_class_init, |
| }; |
| |
| static void ppc405_machine_init(void) |
| { |
| type_register_static(&ref405ep_type); |
| type_register_static(&taihu_type); |
| } |
| |
| type_init(ppc405_machine_init) |
