/* * 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 "hw.h" #include "ppc.h" #include "ppc405.h" #include "nvram.h" #include "flash.h" #include "sysemu.h" #include "block.h" #include "boards.h" #include "qemu-log.h" #include "loader.h" #define BIOS_FILENAME "ppc405_rom.bin" #define BIOS_SIZE (2048 * 1024) #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 a_ref405ep_fpga; struct ref405ep_fpga { uint8_t reg0; uint8_t reg1; }; static uint32_t ref405ep_fpga_readb (void *opaque, a_target_phys_addr addr) { a_ref405ep_fpga *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, a_target_phys_addr addr, uint32_t value) { a_ref405ep_fpga *fpga; fpga = opaque; switch (addr) { case 0x0: /* Read only */ break; case 0x1: fpga->reg1 = value; break; default: break; } } static uint32_t ref405ep_fpga_readw (void *opaque, a_target_phys_addr addr) { uint32_t ret; ret = ref405ep_fpga_readb(opaque, addr) << 8; ret |= ref405ep_fpga_readb(opaque, addr + 1); return ret; } static void ref405ep_fpga_writew (void *opaque, a_target_phys_addr addr, uint32_t value) { ref405ep_fpga_writeb(opaque, addr, (value >> 8) & 0xFF); ref405ep_fpga_writeb(opaque, addr + 1, value & 0xFF); } static uint32_t ref405ep_fpga_readl (void *opaque, a_target_phys_addr addr) { uint32_t ret; ret = ref405ep_fpga_readb(opaque, addr) << 24; ret |= ref405ep_fpga_readb(opaque, addr + 1) << 16; ret |= ref405ep_fpga_readb(opaque, addr + 2) << 8; ret |= ref405ep_fpga_readb(opaque, addr + 3); return ret; } static void ref405ep_fpga_writel (void *opaque, a_target_phys_addr addr, uint32_t value) { ref405ep_fpga_writeb(opaque, addr, (value >> 24) & 0xFF); ref405ep_fpga_writeb(opaque, addr + 1, (value >> 16) & 0xFF); ref405ep_fpga_writeb(opaque, addr + 2, (value >> 8) & 0xFF); ref405ep_fpga_writeb(opaque, addr + 3, value & 0xFF); } static CPUReadMemoryFunc * const ref405ep_fpga_read[] = { &ref405ep_fpga_readb, &ref405ep_fpga_readw, &ref405ep_fpga_readl, }; static CPUWriteMemoryFunc * const ref405ep_fpga_write[] = { &ref405ep_fpga_writeb, &ref405ep_fpga_writew, &ref405ep_fpga_writel, }; static void ref405ep_fpga_reset (void *opaque) { a_ref405ep_fpga *fpga; fpga = opaque; fpga->reg0 = 0x00; fpga->reg1 = 0x0F; } static void ref405ep_fpga_init (uint32_t base) { a_ref405ep_fpga *fpga; int fpga_memory; fpga = qemu_mallocz(sizeof(a_ref405ep_fpga)); fpga_memory = cpu_register_io_memory(ref405ep_fpga_read, ref405ep_fpga_write, fpga); cpu_register_physical_memory(base, 0x00000100, fpga_memory); ref405ep_fpga_reset(fpga); qemu_register_reset(&ref405ep_fpga_reset, fpga); } static void ref405ep_init (a_ram_addr ram_size, const char *boot_device, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model) { char *filename; a_ppc4xx_bd_info bd; CPUPPCState *env; qemu_irq *pic; a_ram_addr sram_offset, bios_offset, bdloc; a_target_phys_addr ram_bases[2], ram_sizes[2]; target_ulong sram_size, bios_size; //int phy_addr = 0; //static int phy_addr = 1; target_ulong kernel_base, kernel_size, initrd_base, initrd_size; int linux_boot; int fl_idx, fl_sectors, len; int ppc_boot_device = boot_device[0]; DriveInfo *dinfo; /* XXX: fix this */ ram_bases[0] = qemu_ram_alloc(0x08000000); ram_sizes[0] = 0x08000000; ram_bases[1] = 0x00000000; ram_sizes[1] = 0x00000000; ram_size = 128 * 1024 * 1024; #ifdef DEBUG_BOARD_INIT printf("%s: register cpu\n", __func__); #endif env = ppc405ep_init(ram_bases, ram_sizes, 33333333, &pic, kernel_filename == NULL ? 0 : 1); /* allocate SRAM */ sram_size = 512 * 1024; sram_offset = qemu_ram_alloc(sram_size); #ifdef DEBUG_BOARD_INIT printf("%s: register SRAM at offset %08lx\n", __func__, sram_offset); #endif cpu_register_physical_memory(0xFFF00000, sram_size, sram_offset | IO_MEM_RAM); /* 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) { bios_size = bdrv_getlength(dinfo->bdrv); bios_offset = qemu_ram_alloc(bios_size); fl_sectors = (bios_size + 65535) >> 16; #ifdef DEBUG_BOARD_INIT printf("Register parallel flash %d size " TARGET_FMT_lx " at offset %08lx addr " TARGET_FMT_lx " '%s' %d\n", fl_idx, bios_size, bios_offset, -bios_size, bdrv_get_device_name(dinfo->bdrv), fl_sectors); #endif pflash_cfi02_register((uint32_t)(-bios_size), bios_offset, dinfo->bdrv, 65536, fl_sectors, 1, 2, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA); fl_idx++; } else #endif { #ifdef DEBUG_BOARD_INIT printf("Load BIOS from file\n"); #endif bios_offset = qemu_ram_alloc(BIOS_SIZE); 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, qemu_get_ram_ptr(bios_offset)); qemu_free(filename); } else { bios_size = -1; } if (bios_size < 0 || bios_size > BIOS_SIZE) { fprintf(stderr, "qemu: could not load PowerPC bios '%s'\n", bios_name); exit(1); } bios_size = (bios_size + 0xfff) & ~0xfff; cpu_register_physical_memory((uint32_t)(-bios_size), bios_size, bios_offset | IO_MEM_ROM); } /* Register FPGA */ #ifdef DEBUG_BOARD_INIT printf("%s: register FPGA\n", __func__); #endif ref405ep_fpga_init(0xF0300000); /* Register NVRAM */ #ifdef DEBUG_BOARD_INIT printf("%s: register NVRAM\n", __func__); #endif m48t59_init(NULL, 0xF0000000, 0, 8192, 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) { fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename); exit(1); } printf("Load kernel size " TARGET_FMT_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) { fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", initrd_filename); exit(1); } } else { initrd_base = 0; initrd_size = 0; } env->gpr[4] = initrd_base; env->gpr[5] = initrd_size; ppc_boot_device = 'm'; if (kernel_cmdline != NULL) { len = strlen(kernel_cmdline); bdloc -= ((len + 255) & ~255); cpu_physical_memory_write(bdloc, (void *)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("%s: Done\n", __func__); #endif printf("bdloc %016lx\n", (unsigned long)bdloc); } static QEMUMachine ref405ep_machine = { .name = "ref405ep", .desc = "ref405ep", .init = ref405ep_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 uint32_t taihu_cpld_readb (void *opaque, a_target_phys_addr addr) { 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_writeb (void *opaque, a_target_phys_addr addr, uint32_t value) { taihu_cpld_t *cpld; cpld = opaque; switch (addr) { case 0x0: /* Read only */ break; case 0x1: cpld->reg1 = value; break; default: break; } } static uint32_t taihu_cpld_readw (void *opaque, a_target_phys_addr addr) { uint32_t ret; ret = taihu_cpld_readb(opaque, addr) << 8; ret |= taihu_cpld_readb(opaque, addr + 1); return ret; } static void taihu_cpld_writew (void *opaque, a_target_phys_addr addr, uint32_t value) { taihu_cpld_writeb(opaque, addr, (value >> 8) & 0xFF); taihu_cpld_writeb(opaque, addr + 1, value & 0xFF); } static uint32_t taihu_cpld_readl (void *opaque, a_target_phys_addr addr) { uint32_t ret; ret = taihu_cpld_readb(opaque, addr) << 24; ret |= taihu_cpld_readb(opaque, addr + 1) << 16; ret |= taihu_cpld_readb(opaque, addr + 2) << 8; ret |= taihu_cpld_readb(opaque, addr + 3); return ret; } static void taihu_cpld_writel (void *opaque, a_target_phys_addr addr, uint32_t value) { taihu_cpld_writel(opaque, addr, (value >> 24) & 0xFF); taihu_cpld_writel(opaque, addr + 1, (value >> 16) & 0xFF); taihu_cpld_writel(opaque, addr + 2, (value >> 8) & 0xFF); taihu_cpld_writeb(opaque, addr + 3, value & 0xFF); } static CPUReadMemoryFunc * const taihu_cpld_read[] = { &taihu_cpld_readb, &taihu_cpld_readw, &taihu_cpld_readl, }; static CPUWriteMemoryFunc * const taihu_cpld_write[] = { &taihu_cpld_writeb, &taihu_cpld_writew, &taihu_cpld_writel, }; static void taihu_cpld_reset (void *opaque) { taihu_cpld_t *cpld; cpld = opaque; cpld->reg0 = 0x01; cpld->reg1 = 0x80; } static void taihu_cpld_init (uint32_t base) { taihu_cpld_t *cpld; int cpld_memory; cpld = qemu_mallocz(sizeof(taihu_cpld_t)); cpld_memory = cpu_register_io_memory(taihu_cpld_read, taihu_cpld_write, cpld); cpu_register_physical_memory(base, 0x00000100, cpld_memory); taihu_cpld_reset(cpld); qemu_register_reset(&taihu_cpld_reset, cpld); } static void taihu_405ep_init(a_ram_addr ram_size, const char *boot_device, const char *kernel_filename, const char *kernel_cmdline, const char *initrd_filename, const char *cpu_model) { char *filename; CPUPPCState *env; qemu_irq *pic; a_ram_addr bios_offset; a_target_phys_addr ram_bases[2], ram_sizes[2]; target_ulong bios_size; target_ulong kernel_base, kernel_size, initrd_base, initrd_size; int linux_boot; int fl_idx, fl_sectors; int ppc_boot_device = boot_device[0]; DriveInfo *dinfo; /* RAM is soldered to the board so the size cannot be changed */ ram_bases[0] = qemu_ram_alloc(0x04000000); ram_sizes[0] = 0x04000000; ram_bases[1] = qemu_ram_alloc(0x04000000); ram_sizes[1] = 0x04000000; ram_size = 0x08000000; #ifdef DEBUG_BOARD_INIT printf("%s: register cpu\n", __func__); #endif env = ppc405ep_init(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) { bios_size = bdrv_getlength(dinfo->bdrv); /* XXX: should check that size is 2MB */ // bios_size = 2 * 1024 * 1024; fl_sectors = (bios_size + 65535) >> 16; bios_offset = qemu_ram_alloc(bios_size); #ifdef DEBUG_BOARD_INIT printf("Register parallel flash %d size " TARGET_FMT_lx " at offset %08lx addr " TARGET_FMT_lx " '%s' %d\n", fl_idx, bios_size, bios_offset, -bios_size, bdrv_get_device_name(dinfo->bdrv), fl_sectors); #endif pflash_cfi02_register((uint32_t)(-bios_size), bios_offset, dinfo->bdrv, 65536, fl_sectors, 1, 4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA); fl_idx++; } else #endif { #ifdef DEBUG_BOARD_INIT printf("Load BIOS from file\n"); #endif if (bios_name == NULL) bios_name = BIOS_FILENAME; bios_offset = qemu_ram_alloc(BIOS_SIZE); filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); if (filename) { bios_size = load_image(filename, qemu_get_ram_ptr(bios_offset)); } else { bios_size = -1; } if (bios_size < 0 || bios_size > BIOS_SIZE) { fprintf(stderr, "qemu: could not load PowerPC bios '%s'\n", bios_name); exit(1); } bios_size = (bios_size + 0xfff) & ~0xfff; cpu_register_physical_memory((uint32_t)(-bios_size), bios_size, bios_offset | IO_MEM_ROM); } /* Register Linux flash */ dinfo = drive_get(IF_PFLASH, 0, fl_idx); if (dinfo) { bios_size = bdrv_getlength(dinfo->bdrv); /* XXX: should check that size is 32MB */ bios_size = 32 * 1024 * 1024; fl_sectors = (bios_size + 65535) >> 16; #ifdef DEBUG_BOARD_INIT printf("Register parallel flash %d size " TARGET_FMT_lx " at offset %08lx addr " TARGET_FMT_lx " '%s'\n", fl_idx, bios_size, bios_offset, (target_ulong)0xfc000000, bdrv_get_device_name(dinfo->bdrv)); #endif bios_offset = qemu_ram_alloc(bios_size); pflash_cfi02_register(0xfc000000, bios_offset, dinfo->bdrv, 65536, fl_sectors, 1, 4, 0x0001, 0x22DA, 0x0000, 0x0000, 0x555, 0x2AA); fl_idx++; } /* Register CLPD & LCD display */ #ifdef DEBUG_BOARD_INIT printf("%s: register CPLD\n", __func__); #endif taihu_cpld_init(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) { fprintf(stderr, "qemu: could not load kernel '%s'\n", 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) { fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", initrd_filename); exit(1); } } else { initrd_base = 0; initrd_size = 0; } ppc_boot_device = 'm'; } else { kernel_base = 0; kernel_size = 0; initrd_base = 0; initrd_size = 0; } #ifdef DEBUG_BOARD_INIT printf("%s: Done\n", __func__); #endif } static QEMUMachine taihu_machine = { .name = "taihu", .desc = "taihu", .init = taihu_405ep_init, }; static void ppc405_machine_init(void) { qemu_register_machine(&ref405ep_machine); qemu_register_machine(&taihu_machine); } machine_init(ppc405_machine_init);