409dbce54b
A few machines need to translate the ELF header addresses into physical addresses. Currently the only possibility is to add a value to the addresses. This patch replaces the addend argument by and a translation function and an opaque passed to the function. A NULL function does not translate the address. The patch also convert all machines that have an addend, simplify the PowerPC kernel loading and fix the MIPS kernel loading using this new feature. Other machines may benefit from this feature. Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
187 lines
6.3 KiB
C
187 lines
6.3 KiB
C
/*
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* QEMU ETRAX System Emulator
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*
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* Copyright (c) 2007 Edgar E. Iglesias, Axis Communications AB.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "sysbus.h"
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#include "boards.h"
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#include "sysemu.h"
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#include "net.h"
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#include "flash.h"
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#include "etraxfs.h"
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#include "loader.h"
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#include "elf.h"
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#define FLASH_SIZE 0x2000000
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#define INTMEM_SIZE (128 * 1024)
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static uint32_t bootstrap_pc;
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static void main_cpu_reset(void *opaque)
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{
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CPUState *env = opaque;
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cpu_reset(env);
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env->pc = bootstrap_pc;
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}
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static uint64_t translate_kernel_address(void *opaque, uint64_t addr)
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{
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return addr - 0x80000000LL;
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}
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static
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void bareetraxfs_init (ram_addr_t ram_size,
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const char *boot_device,
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const char *kernel_filename, const char *kernel_cmdline,
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const char *initrd_filename, const char *cpu_model)
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{
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DeviceState *dev;
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SysBusDevice *s;
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CPUState *env;
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qemu_irq irq[30], nmi[2], *cpu_irq;
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void *etraxfs_dmac;
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struct etraxfs_dma_client *eth[2] = {NULL, NULL};
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int kernel_size;
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DriveInfo *dinfo;
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int i;
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ram_addr_t phys_ram;
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ram_addr_t phys_flash;
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ram_addr_t phys_intmem;
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/* init CPUs */
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if (cpu_model == NULL) {
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cpu_model = "crisv32";
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}
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env = cpu_init(cpu_model);
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qemu_register_reset(main_cpu_reset, env);
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/* allocate RAM */
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phys_ram = qemu_ram_alloc(ram_size);
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cpu_register_physical_memory(0x40000000, ram_size, phys_ram | IO_MEM_RAM);
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/* The ETRAX-FS has 128Kb on chip ram, the docs refer to it as the
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internal memory. */
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phys_intmem = qemu_ram_alloc(INTMEM_SIZE);
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cpu_register_physical_memory(0x38000000, INTMEM_SIZE,
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phys_intmem | IO_MEM_RAM);
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phys_flash = qemu_ram_alloc(FLASH_SIZE);
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dinfo = drive_get(IF_PFLASH, 0, 0);
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pflash_cfi02_register(0x0, phys_flash,
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dinfo ? dinfo->bdrv : NULL, (64 * 1024),
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FLASH_SIZE >> 16,
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1, 2, 0x0000, 0x0000, 0x0000, 0x0000,
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0x555, 0x2aa);
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cpu_irq = cris_pic_init_cpu(env);
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dev = qdev_create(NULL, "etraxfs,pic");
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/* FIXME: Is there a proper way to signal vectors to the CPU core? */
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qdev_prop_set_ptr(dev, "interrupt_vector", &env->interrupt_vector);
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qdev_init_nofail(dev);
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s = sysbus_from_qdev(dev);
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sysbus_mmio_map(s, 0, 0x3001c000);
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sysbus_connect_irq(s, 0, cpu_irq[0]);
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sysbus_connect_irq(s, 1, cpu_irq[1]);
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for (i = 0; i < 30; i++) {
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irq[i] = qdev_get_gpio_in(dev, i);
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}
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nmi[0] = qdev_get_gpio_in(dev, 30);
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nmi[1] = qdev_get_gpio_in(dev, 31);
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etraxfs_dmac = etraxfs_dmac_init(0x30000000, 10);
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for (i = 0; i < 10; i++) {
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/* On ETRAX, odd numbered channels are inputs. */
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etraxfs_dmac_connect(etraxfs_dmac, i, irq + 7 + i, i & 1);
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}
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/* Add the two ethernet blocks. */
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eth[0] = etraxfs_eth_init(&nd_table[0], 0x30034000, 1);
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if (nb_nics > 1)
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eth[1] = etraxfs_eth_init(&nd_table[1], 0x30036000, 2);
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/* The DMA Connector block is missing, hardwire things for now. */
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etraxfs_dmac_connect_client(etraxfs_dmac, 0, eth[0]);
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etraxfs_dmac_connect_client(etraxfs_dmac, 1, eth[0] + 1);
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if (eth[1]) {
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etraxfs_dmac_connect_client(etraxfs_dmac, 6, eth[1]);
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etraxfs_dmac_connect_client(etraxfs_dmac, 7, eth[1] + 1);
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}
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/* 2 timers. */
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sysbus_create_varargs("etraxfs,timer", 0x3001e000, irq[0x1b], nmi[1], NULL);
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sysbus_create_varargs("etraxfs,timer", 0x3005e000, irq[0x1b], nmi[1], NULL);
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for (i = 0; i < 4; i++) {
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sysbus_create_simple("etraxfs,serial", 0x30026000 + i * 0x2000,
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irq[0x14 + i]);
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}
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if (kernel_filename) {
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uint64_t entry, high;
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int kcmdline_len;
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/* Boots a kernel elf binary, os/linux-2.6/vmlinux from the axis
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devboard SDK. */
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kernel_size = load_elf(kernel_filename, translate_kernel_address, NULL,
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&entry, NULL, &high, 0, ELF_MACHINE, 0);
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bootstrap_pc = entry;
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if (kernel_size < 0) {
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/* Takes a kimage from the axis devboard SDK. */
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kernel_size = load_image_targphys(kernel_filename, 0x40004000,
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ram_size);
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bootstrap_pc = 0x40004000;
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env->regs[9] = 0x40004000 + kernel_size;
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}
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env->regs[8] = 0x56902387; /* RAM init magic. */
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if (kernel_cmdline && (kcmdline_len = strlen(kernel_cmdline))) {
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if (kcmdline_len > 256) {
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fprintf(stderr, "Too long CRIS kernel cmdline (max 256)\n");
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exit(1);
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}
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/* Let the kernel know we are modifying the cmdline. */
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env->regs[10] = 0x87109563;
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env->regs[11] = 0x40000000;
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pstrcpy_targphys("cmdline", env->regs[11], 256, kernel_cmdline);
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}
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}
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env->pc = bootstrap_pc;
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printf ("pc =%x\n", env->pc);
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printf ("ram size =%ld\n", ram_size);
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}
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static QEMUMachine bareetraxfs_machine = {
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.name = "bareetraxfs",
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.desc = "Bare ETRAX FS board",
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.init = bareetraxfs_init,
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.is_default = 1,
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};
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static void bareetraxfs_machine_init(void)
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{
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qemu_register_machine(&bareetraxfs_machine);
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}
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machine_init(bareetraxfs_machine_init);
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