2009-03-02 19:42:42 +03:00
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/*
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* Qemu PowerPC MPC8544DS board emualtion
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*
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* Copyright (C) 2009 Freescale Semiconductor, Inc. All rights reserved.
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*
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* Author: Yu Liu, <yu.liu@freescale.com>
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*
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* This file is derived from hw/ppc440_bamboo.c,
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* the copyright for that material belongs to the original owners.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*/
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#include <dirent.h>
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#include "config.h"
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#include "qemu-common.h"
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#include "net.h"
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#include "hw.h"
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#include "pc.h"
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#include "pci.h"
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#include "boards.h"
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#include "sysemu.h"
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#include "kvm.h"
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#include "kvm_ppc.h"
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#include "device_tree.h"
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#include "openpic.h"
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2011-05-01 01:34:53 +04:00
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#include "ppc.h"
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2009-09-20 18:58:02 +04:00
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#include "loader.h"
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#include "elf.h"
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2010-08-31 02:22:28 +04:00
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#include "sysbus.h"
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2009-03-02 19:42:42 +03:00
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#define BINARY_DEVICE_TREE_FILE "mpc8544ds.dtb"
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#define UIMAGE_LOAD_BASE 0
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2010-02-02 11:49:03 +03:00
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#define DTC_LOAD_PAD 0x500000
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#define DTC_PAD_MASK 0xFFFFF
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#define INITRD_LOAD_PAD 0x2000000
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#define INITRD_PAD_MASK 0xFFFFFF
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2009-03-02 19:42:42 +03:00
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#define RAM_SIZES_ALIGN (64UL << 20)
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#define MPC8544_CCSRBAR_BASE 0xE0000000
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#define MPC8544_MPIC_REGS_BASE (MPC8544_CCSRBAR_BASE + 0x40000)
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#define MPC8544_SERIAL0_REGS_BASE (MPC8544_CCSRBAR_BASE + 0x4500)
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#define MPC8544_SERIAL1_REGS_BASE (MPC8544_CCSRBAR_BASE + 0x4600)
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#define MPC8544_PCI_REGS_BASE (MPC8544_CCSRBAR_BASE + 0x8000)
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#define MPC8544_PCI_REGS_SIZE 0x1000
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#define MPC8544_PCI_IO 0xE1000000
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#define MPC8544_PCI_IOLEN 0x10000
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2011-06-02 15:53:40 +04:00
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#define MPC8544_UTIL_BASE (MPC8544_CCSRBAR_BASE + 0xe0000)
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2009-03-02 19:42:42 +03:00
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2011-05-01 01:34:53 +04:00
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struct boot_info
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{
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uint32_t dt_base;
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uint32_t entry;
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};
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2009-07-27 18:12:52 +04:00
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#ifdef CONFIG_FDT
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2009-03-02 19:42:42 +03:00
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static int mpc8544_copy_soc_cell(void *fdt, const char *node, const char *prop)
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{
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uint32_t cell;
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int ret;
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ret = kvmppc_read_host_property(node, prop, &cell, sizeof(cell));
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if (ret < 0) {
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fprintf(stderr, "couldn't read host %s/%s\n", node, prop);
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goto out;
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}
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ret = qemu_devtree_setprop_cell(fdt, "/cpus/PowerPC,8544@0",
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prop, cell);
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if (ret < 0) {
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fprintf(stderr, "couldn't set guest /cpus/PowerPC,8544@0/%s\n", prop);
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goto out;
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}
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out:
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return ret;
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}
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2009-03-07 18:32:56 +03:00
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#endif
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2009-03-02 19:42:42 +03:00
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2011-06-16 01:34:04 +04:00
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static int mpc8544_load_device_tree(CPUState *env,
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target_phys_addr_t addr,
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uint32_t ramsize,
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target_phys_addr_t initrd_base,
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target_phys_addr_t initrd_size,
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const char *kernel_cmdline)
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2009-03-02 19:42:42 +03:00
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{
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2010-02-27 21:47:22 +03:00
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int ret = -1;
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2009-07-27 18:12:52 +04:00
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#ifdef CONFIG_FDT
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2011-05-01 01:34:53 +04:00
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uint32_t mem_reg_property[] = {0, cpu_to_be32(ramsize)};
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2009-05-30 03:52:44 +04:00
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char *filename;
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2009-04-10 20:23:59 +04:00
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int fdt_size;
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2010-02-27 21:47:22 +03:00
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void *fdt;
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2011-06-16 01:34:04 +04:00
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uint8_t hypercall[16];
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2009-03-02 19:42:42 +03:00
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2009-05-30 03:52:44 +04:00
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filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
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if (!filename) {
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2009-03-02 19:42:42 +03:00
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goto out;
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2009-05-30 03:52:44 +04:00
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}
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fdt = load_device_tree(filename, &fdt_size);
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2011-08-21 07:09:37 +04:00
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g_free(filename);
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2009-05-30 03:52:44 +04:00
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if (fdt == NULL) {
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goto out;
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}
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2009-03-02 19:42:42 +03:00
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/* Manipulate device tree in memory. */
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ret = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property,
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sizeof(mem_reg_property));
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if (ret < 0)
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fprintf(stderr, "couldn't set /memory/reg\n");
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2011-05-01 01:34:53 +04:00
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if (initrd_size) {
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ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start",
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initrd_base);
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if (ret < 0) {
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fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n");
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}
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2009-03-02 19:42:42 +03:00
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2011-05-01 01:34:53 +04:00
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ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end",
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(initrd_base + initrd_size));
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if (ret < 0) {
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fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
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}
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}
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2009-03-02 19:42:42 +03:00
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ret = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs",
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kernel_cmdline);
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if (ret < 0)
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fprintf(stderr, "couldn't set /chosen/bootargs\n");
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if (kvm_enabled()) {
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struct dirent *dirp;
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DIR *dp;
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char buf[128];
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if ((dp = opendir("/proc/device-tree/cpus/")) == NULL) {
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printf("Can't open directory /proc/device-tree/cpus/\n");
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2010-02-02 11:49:02 +03:00
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ret = -1;
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2009-03-02 19:42:42 +03:00
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goto out;
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}
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buf[0] = '\0';
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while ((dirp = readdir(dp)) != NULL) {
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if (strncmp(dirp->d_name, "PowerPC", 7) == 0) {
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snprintf(buf, 128, "/cpus/%s", dirp->d_name);
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break;
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}
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}
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closedir(dp);
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if (buf[0] == '\0') {
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printf("Unknow host!\n");
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2010-02-02 11:49:02 +03:00
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ret = -1;
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2009-03-02 19:42:42 +03:00
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goto out;
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}
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mpc8544_copy_soc_cell(fdt, buf, "clock-frequency");
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mpc8544_copy_soc_cell(fdt, buf, "timebase-frequency");
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2011-06-16 01:34:04 +04:00
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/* indicate KVM hypercall interface */
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qemu_devtree_setprop_string(fdt, "/hypervisor", "compatible",
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"linux,kvm");
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kvmppc_get_hypercall(env, hypercall, sizeof(hypercall));
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qemu_devtree_setprop(fdt, "/hypervisor", "hcall-instructions",
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hypercall, sizeof(hypercall));
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2011-05-01 01:34:53 +04:00
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} else {
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const uint32_t freq = 400000000;
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qemu_devtree_setprop_cell(fdt, "/cpus/PowerPC,8544@0",
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"clock-frequency", freq);
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qemu_devtree_setprop_cell(fdt, "/cpus/PowerPC,8544@0",
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"timebase-frequency", freq);
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2009-03-02 19:42:42 +03:00
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}
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2010-02-02 11:49:02 +03:00
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ret = rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr);
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2011-08-21 07:09:37 +04:00
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g_free(fdt);
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2009-04-10 20:23:59 +04:00
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2009-03-02 19:42:42 +03:00
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out:
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#endif
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2010-02-02 11:49:02 +03:00
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return ret;
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2009-03-02 19:42:42 +03:00
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}
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2011-05-01 01:34:53 +04:00
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/* Create -kernel TLB entries for BookE, linearly spanning 256MB. */
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2011-06-16 20:45:43 +04:00
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static inline target_phys_addr_t booke206_page_size_to_tlb(uint64_t size)
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{
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return (ffs(size >> 10) - 1) >> 1;
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}
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2011-05-01 01:34:53 +04:00
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static void mmubooke_create_initial_mapping(CPUState *env,
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target_ulong va,
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target_phys_addr_t pa)
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{
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2011-06-16 20:45:43 +04:00
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ppcmas_tlb_t *tlb = booke206_get_tlbm(env, 1, 0, 0);
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target_phys_addr_t size;
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size = (booke206_page_size_to_tlb(256 * 1024 * 1024) << MAS1_TSIZE_SHIFT);
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tlb->mas1 = MAS1_VALID | size;
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tlb->mas2 = va & TARGET_PAGE_MASK;
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tlb->mas7_3 = pa & TARGET_PAGE_MASK;
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tlb->mas7_3 |= MAS3_UR | MAS3_UW | MAS3_UX | MAS3_SR | MAS3_SW | MAS3_SX;
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2011-05-01 01:34:53 +04:00
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}
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static void mpc8544ds_cpu_reset(void *opaque)
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{
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CPUState *env = opaque;
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struct boot_info *bi = env->load_info;
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cpu_reset(env);
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/* Set initial guest state. */
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env->gpr[1] = (16<<20) - 8;
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env->gpr[3] = bi->dt_base;
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env->nip = bi->entry;
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mmubooke_create_initial_mapping(env, 0, 0);
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}
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2009-10-02 01:12:16 +04:00
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static void mpc8544ds_init(ram_addr_t ram_size,
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2009-03-02 19:42:42 +03:00
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const char *boot_device,
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const char *kernel_filename,
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const char *kernel_cmdline,
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const char *initrd_filename,
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const char *cpu_model)
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{
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PCIBus *pci_bus;
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CPUState *env;
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uint64_t elf_entry;
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uint64_t elf_lowaddr;
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2009-10-02 01:12:16 +04:00
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target_phys_addr_t entry=0;
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target_phys_addr_t loadaddr=UIMAGE_LOAD_BASE;
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2009-03-02 19:42:42 +03:00
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target_long kernel_size=0;
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2010-02-02 11:49:03 +03:00
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target_ulong dt_base = 0;
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target_ulong initrd_base = 0;
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2009-03-02 19:42:42 +03:00
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target_long initrd_size=0;
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int i=0;
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unsigned int pci_irq_nrs[4] = {1, 2, 3, 4};
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2010-08-31 02:22:28 +04:00
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qemu_irq *irqs, *mpic;
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DeviceState *dev;
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2011-05-01 01:34:53 +04:00
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struct boot_info *boot_info;
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2009-03-02 19:42:42 +03:00
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/* Setup CPU */
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2011-05-01 01:05:03 +04:00
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if (cpu_model == NULL) {
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cpu_model = "e500v2_v30";
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}
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env = cpu_ppc_init(cpu_model);
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2009-03-02 19:42:42 +03:00
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if (!env) {
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fprintf(stderr, "Unable to initialize CPU!\n");
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exit(1);
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}
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2011-05-01 01:34:53 +04:00
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/* XXX register timer? */
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ppc_emb_timers_init(env, 400000000, PPC_INTERRUPT_DECR);
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ppc_dcr_init(env, NULL, NULL);
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/* Register reset handler */
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qemu_register_reset(mpc8544ds_cpu_reset, env);
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2009-03-02 19:42:42 +03:00
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/* Fixup Memory size on a alignment boundary */
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ram_size &= ~(RAM_SIZES_ALIGN - 1);
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/* Register Memory */
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2010-06-25 21:09:35 +04:00
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cpu_register_physical_memory(0, ram_size, qemu_ram_alloc(NULL,
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"mpc8544ds.ram", ram_size));
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2009-03-02 19:42:42 +03:00
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/* MPIC */
|
2011-08-21 07:09:37 +04:00
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irqs = g_malloc0(sizeof(qemu_irq) * OPENPIC_OUTPUT_NB);
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2009-03-02 19:42:42 +03:00
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irqs[OPENPIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPCE500_INPUT_INT];
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irqs[OPENPIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPCE500_INPUT_CINT];
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mpic = mpic_init(MPC8544_MPIC_REGS_BASE, 1, &irqs, NULL);
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/* Serial */
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2010-03-21 22:47:11 +03:00
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if (serial_hds[0]) {
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2010-10-13 22:41:29 +04:00
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serial_mm_init(MPC8544_SERIAL0_REGS_BASE,
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0, mpic[12+26], 399193,
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serial_hds[0], 1, 1);
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2010-03-21 22:47:11 +03:00
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}
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2009-03-02 19:42:42 +03:00
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2010-03-21 22:47:11 +03:00
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if (serial_hds[1]) {
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2010-10-13 22:41:29 +04:00
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serial_mm_init(MPC8544_SERIAL1_REGS_BASE,
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0, mpic[12+26], 399193,
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serial_hds[0], 1, 1);
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2010-03-21 22:47:11 +03:00
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}
|
2009-03-02 19:42:42 +03:00
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2011-06-02 15:53:40 +04:00
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/* General Utility device */
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sysbus_create_simple("mpc8544-guts", MPC8544_UTIL_BASE, NULL);
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2009-03-02 19:42:42 +03:00
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/* PCI */
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2010-08-31 02:22:28 +04:00
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dev = sysbus_create_varargs("e500-pcihost", MPC8544_PCI_REGS_BASE,
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mpic[pci_irq_nrs[0]], mpic[pci_irq_nrs[1]],
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mpic[pci_irq_nrs[2]], mpic[pci_irq_nrs[3]],
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NULL);
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2011-05-27 05:23:26 +04:00
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pci_bus = (PCIBus *)qdev_get_child_bus(dev, "pci.0");
|
2009-03-02 19:42:42 +03:00
|
|
|
if (!pci_bus)
|
|
|
|
printf("couldn't create PCI controller!\n");
|
|
|
|
|
2010-12-08 14:05:49 +03:00
|
|
|
isa_mmio_init(MPC8544_PCI_IO, MPC8544_PCI_IOLEN);
|
2009-03-02 19:42:42 +03:00
|
|
|
|
|
|
|
if (pci_bus) {
|
|
|
|
/* Register network interfaces. */
|
|
|
|
for (i = 0; i < nb_nics; i++) {
|
2009-09-25 05:53:51 +04:00
|
|
|
pci_nic_init_nofail(&nd_table[i], "virtio", NULL);
|
2009-03-02 19:42:42 +03:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Load kernel. */
|
|
|
|
if (kernel_filename) {
|
|
|
|
kernel_size = load_uimage(kernel_filename, &entry, &loadaddr, NULL);
|
|
|
|
if (kernel_size < 0) {
|
2010-03-14 23:20:59 +03:00
|
|
|
kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry,
|
|
|
|
&elf_lowaddr, NULL, 1, ELF_MACHINE, 0);
|
2009-03-02 19:42:42 +03:00
|
|
|
entry = elf_entry;
|
|
|
|
loadaddr = elf_lowaddr;
|
|
|
|
}
|
|
|
|
/* XXX try again as binary */
|
|
|
|
if (kernel_size < 0) {
|
|
|
|
fprintf(stderr, "qemu: could not load kernel '%s'\n",
|
|
|
|
kernel_filename);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Load initrd. */
|
|
|
|
if (initrd_filename) {
|
2010-02-02 11:49:03 +03:00
|
|
|
initrd_base = (kernel_size + INITRD_LOAD_PAD) & ~INITRD_PAD_MASK;
|
2009-04-10 07:36:49 +04:00
|
|
|
initrd_size = load_image_targphys(initrd_filename, initrd_base,
|
|
|
|
ram_size - initrd_base);
|
2009-03-02 19:42:42 +03:00
|
|
|
|
|
|
|
if (initrd_size < 0) {
|
|
|
|
fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
|
|
|
|
initrd_filename);
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2011-08-21 07:09:37 +04:00
|
|
|
boot_info = g_malloc0(sizeof(struct boot_info));
|
2011-05-01 01:34:53 +04:00
|
|
|
|
2009-03-02 19:42:42 +03:00
|
|
|
/* If we're loading a kernel directly, we must load the device tree too. */
|
|
|
|
if (kernel_filename) {
|
2011-05-01 01:34:53 +04:00
|
|
|
#ifndef CONFIG_FDT
|
|
|
|
cpu_abort(env, "Compiled without FDT support - can't load kernel\n");
|
|
|
|
#endif
|
2010-02-02 11:49:03 +03:00
|
|
|
dt_base = (kernel_size + DTC_LOAD_PAD) & ~DTC_PAD_MASK;
|
2011-06-16 01:34:04 +04:00
|
|
|
if (mpc8544_load_device_tree(env, dt_base, ram_size,
|
2010-02-02 11:49:02 +03:00
|
|
|
initrd_base, initrd_size, kernel_cmdline) < 0) {
|
2009-03-02 19:42:42 +03:00
|
|
|
fprintf(stderr, "couldn't load device tree\n");
|
|
|
|
exit(1);
|
|
|
|
}
|
|
|
|
|
2011-05-01 01:34:53 +04:00
|
|
|
boot_info->entry = entry;
|
|
|
|
boot_info->dt_base = dt_base;
|
2009-03-02 19:42:42 +03:00
|
|
|
}
|
2011-05-01 01:34:53 +04:00
|
|
|
env->load_info = boot_info;
|
2009-03-02 19:42:42 +03:00
|
|
|
|
2011-05-01 01:34:53 +04:00
|
|
|
if (kvm_enabled()) {
|
2009-03-02 19:42:42 +03:00
|
|
|
kvmppc_init();
|
2011-05-01 01:34:53 +04:00
|
|
|
}
|
2009-03-02 19:42:42 +03:00
|
|
|
}
|
|
|
|
|
2009-05-21 03:38:09 +04:00
|
|
|
static QEMUMachine mpc8544ds_machine = {
|
2009-03-02 19:42:42 +03:00
|
|
|
.name = "mpc8544ds",
|
|
|
|
.desc = "mpc8544ds",
|
|
|
|
.init = mpc8544ds_init,
|
|
|
|
};
|
2009-05-21 03:38:09 +04:00
|
|
|
|
|
|
|
static void mpc8544ds_machine_init(void)
|
|
|
|
{
|
|
|
|
qemu_register_machine(&mpc8544ds_machine);
|
|
|
|
}
|
|
|
|
|
|
|
|
machine_init(mpc8544ds_machine_init);
|