From 9e80202352dd49bdd9e67b8b906d86f058431505 Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Sat, 11 May 2019 15:12:49 -0500 Subject: Initial import of abandoned HQEMU version 2.5.2 --- src/hw/ppc/ppc405_boards.c | 660 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 660 insertions(+) create mode 100644 src/hw/ppc/ppc405_boards.c (limited to 'src/hw/ppc/ppc405_boards.c') diff --git a/src/hw/ppc/ppc405_boards.c b/src/hw/ppc/ppc405_boards.c new file mode 100644 index 0000000..31bc186 --- /dev/null +++ b/src/hw/ppc/ppc405_boards.c @@ -0,0 +1,660 @@ +/* + * 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/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 "sysemu/block-backend.h" +#include "sysemu/blockdev.h" +#include "exec/address-spaces.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_t ref405ep_fpga_t; +struct ref405ep_fpga_t { + uint8_t reg0; + uint8_t reg1; +}; + +static uint32_t ref405ep_fpga_readb (void *opaque, hwaddr addr) +{ + 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, uint32_t value) +{ + ref405ep_fpga_t *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, hwaddr 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, + hwaddr 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, hwaddr 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, + hwaddr 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 const MemoryRegionOps ref405ep_fpga_ops = { + .old_mmio = { + .read = { + ref405ep_fpga_readb, ref405ep_fpga_readw, ref405ep_fpga_readl, + }, + .write = { + ref405ep_fpga_writeb, ref405ep_fpga_writew, ref405ep_fpga_writel, + }, + }, + .endianness = DEVICE_NATIVE_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 * 1024 * 1024; +#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 * 1024; + memory_region_init_ram(sram, NULL, "ef405ep.sram", sram_size, + &error_fatal); + vmstate_register_ram_global(sram); + 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); + vmstate_register_ram_global(bios); + + 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) { + fprintf(stderr, "qemu: could not load kernel '%s'\n", + 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) { + 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; + 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); + vmstate_register_ram_global(bios); + 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 * 1024 * 1024; + 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) { + 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; + } + } 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); +} + +machine_init(ppc405_machine_init) -- cgit v1.1