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authoraurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>2009-03-02 16:42:42 +0000
committeraurel32 <aurel32@c046a42c-6fe2-441c-8c8c-71466251a162>2009-03-02 16:42:42 +0000
commit1db09b847e910952e4ad77560963762fb490dafc (patch)
tree662a704256e67c889b2f22ff6751008425dd4bbc /hw/ppce500_mpc8544ds.c
parent9fdc60bf55fc291d734735ddfb5629f8e8ced32b (diff)
kvm/powerpc: Add MPC8544DS board support
This patch add an emulation of MPC8544DS board. It can work on All E500 platforms. Signed-off-by: Liu Yu <yu.liu@freescale.com> Acked-by: Hollis Blanchard <hollisb@us.ibm.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6663 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'hw/ppce500_mpc8544ds.c')
-rw-r--r--hw/ppce500_mpc8544ds.c284
1 files changed, 284 insertions, 0 deletions
diff --git a/hw/ppce500_mpc8544ds.c b/hw/ppce500_mpc8544ds.c
new file mode 100644
index 0000000000..8fa0383c57
--- /dev/null
+++ b/hw/ppce500_mpc8544ds.c
@@ -0,0 +1,284 @@
+/*
+ * Qemu PowerPC MPC8544DS board emualtion
+ *
+ * Copyright (C) 2009 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: Yu Liu, <yu.liu@freescale.com>
+ *
+ * This file is derived from hw/ppc440_bamboo.c,
+ * the copyright for that material belongs to the original owners.
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <dirent.h>
+
+#include "config.h"
+#include "qemu-common.h"
+#include "net.h"
+#include "hw.h"
+#include "pc.h"
+#include "pci.h"
+#include "virtio-blk.h"
+#include "boards.h"
+#include "sysemu.h"
+#include "kvm.h"
+#include "kvm_ppc.h"
+#include "device_tree.h"
+#include "openpic.h"
+#include "ppce500.h"
+
+#define BINARY_DEVICE_TREE_FILE "mpc8544ds.dtb"
+#define UIMAGE_LOAD_BASE 0
+#define DTB_LOAD_BASE 0x600000
+#define INITRD_LOAD_BASE 0x2000000
+
+#define RAM_SIZES_ALIGN (64UL << 20)
+
+#define MPC8544_CCSRBAR_BASE 0xE0000000
+#define MPC8544_MPIC_REGS_BASE (MPC8544_CCSRBAR_BASE + 0x40000)
+#define MPC8544_SERIAL0_REGS_BASE (MPC8544_CCSRBAR_BASE + 0x4500)
+#define MPC8544_SERIAL1_REGS_BASE (MPC8544_CCSRBAR_BASE + 0x4600)
+#define MPC8544_PCI_REGS_BASE (MPC8544_CCSRBAR_BASE + 0x8000)
+#define MPC8544_PCI_REGS_SIZE 0x1000
+#define MPC8544_PCI_IO 0xE1000000
+#define MPC8544_PCI_IOLEN 0x10000
+
+static int mpc8544_copy_soc_cell(void *fdt, const char *node, const char *prop)
+{
+ uint32_t cell;
+ int ret;
+
+ ret = kvmppc_read_host_property(node, prop, &cell, sizeof(cell));
+ if (ret < 0) {
+ fprintf(stderr, "couldn't read host %s/%s\n", node, prop);
+ goto out;
+ }
+
+ ret = qemu_devtree_setprop_cell(fdt, "/cpus/PowerPC,8544@0",
+ prop, cell);
+ if (ret < 0) {
+ fprintf(stderr, "couldn't set guest /cpus/PowerPC,8544@0/%s\n", prop);
+ goto out;
+ }
+
+out:
+ return ret;
+}
+
+static void *mpc8544_load_device_tree(void *addr,
+ uint32_t ramsize,
+ target_phys_addr_t initrd_base,
+ target_phys_addr_t initrd_size,
+ const char *kernel_cmdline)
+{
+ void *fdt = NULL;
+#ifdef HAVE_FDT
+ uint32_t mem_reg_property[] = {0, ramsize};
+ char *path;
+ int pathlen;
+ int ret;
+
+ pathlen = snprintf(NULL, 0, "%s/%s", bios_dir, BINARY_DEVICE_TREE_FILE) + 1;
+ path = qemu_malloc(pathlen);
+
+ snprintf(path, pathlen, "%s/%s", bios_dir, BINARY_DEVICE_TREE_FILE);
+
+ fdt = load_device_tree(path, addr);
+ qemu_free(path);
+ if (fdt == NULL)
+ goto out;
+
+ /* Manipulate device tree in memory. */
+ ret = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property,
+ sizeof(mem_reg_property));
+ if (ret < 0)
+ fprintf(stderr, "couldn't set /memory/reg\n");
+
+ ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start",
+ initrd_base);
+ if (ret < 0)
+ fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n");
+
+ ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end",
+ (initrd_base + initrd_size));
+ if (ret < 0)
+ fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
+
+ ret = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs",
+ kernel_cmdline);
+ if (ret < 0)
+ fprintf(stderr, "couldn't set /chosen/bootargs\n");
+
+ if (kvm_enabled()) {
+ struct dirent *dirp;
+ DIR *dp;
+ char buf[128];
+
+ if ((dp = opendir("/proc/device-tree/cpus/")) == NULL) {
+ printf("Can't open directory /proc/device-tree/cpus/\n");
+ goto out;
+ }
+
+ buf[0] = '\0';
+ while ((dirp = readdir(dp)) != NULL) {
+ if (strncmp(dirp->d_name, "PowerPC", 7) == 0) {
+ snprintf(buf, 128, "/cpus/%s", dirp->d_name);
+ break;
+ }
+ }
+ closedir(dp);
+ if (buf[0] == '\0') {
+ printf("Unknow host!\n");
+ goto out;
+ }
+
+ mpc8544_copy_soc_cell(fdt, buf, "clock-frequency");
+ mpc8544_copy_soc_cell(fdt, buf, "timebase-frequency");
+ }
+
+out:
+#endif
+
+ return fdt;
+}
+
+static void mpc8544ds_init(ram_addr_t ram_size, int vga_ram_size,
+ const char *boot_device,
+ const char *kernel_filename,
+ const char *kernel_cmdline,
+ const char *initrd_filename,
+ const char *cpu_model)
+{
+ PCIBus *pci_bus;
+ CPUState *env;
+ uint64_t elf_entry;
+ uint64_t elf_lowaddr;
+ target_ulong entry=0;
+ target_ulong loadaddr=UIMAGE_LOAD_BASE;
+ target_long kernel_size=0;
+ target_ulong dt_base=DTB_LOAD_BASE;
+ target_ulong initrd_base=INITRD_LOAD_BASE;
+ target_long initrd_size=0;
+ void *fdt;
+ int i=0;
+ unsigned int pci_irq_nrs[4] = {1, 2, 3, 4};
+ qemu_irq *irqs, *mpic, *pci_irqs;
+ SerialState * serial[2];
+
+ /* Setup CPU */
+ env = cpu_ppc_init("e500v2_v30");
+ if (!env) {
+ fprintf(stderr, "Unable to initialize CPU!\n");
+ exit(1);
+ }
+
+ /* Fixup Memory size on a alignment boundary */
+ ram_size &= ~(RAM_SIZES_ALIGN - 1);
+
+ /* Register Memory */
+ cpu_register_physical_memory(0, ram_size, 0);
+
+ /* MPIC */
+ irqs = qemu_mallocz(sizeof(qemu_irq) * OPENPIC_OUTPUT_NB);
+ irqs[OPENPIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPCE500_INPUT_INT];
+ irqs[OPENPIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPCE500_INPUT_CINT];
+ mpic = mpic_init(MPC8544_MPIC_REGS_BASE, 1, &irqs, NULL);
+
+ /* Serial */
+ if (serial_hds[0])
+ serial[0] = serial_mm_init(MPC8544_SERIAL0_REGS_BASE,
+ 0, mpic[12+26], 399193,
+ serial_hds[0], 1);
+
+ if (serial_hds[1])
+ serial[0] = serial_mm_init(MPC8544_SERIAL1_REGS_BASE,
+ 0, mpic[12+26], 399193,
+ serial_hds[0], 1);
+
+ /* PCI */
+ pci_irqs = qemu_malloc(sizeof(qemu_irq) * 4);
+ pci_irqs[0] = mpic[pci_irq_nrs[0]];
+ pci_irqs[1] = mpic[pci_irq_nrs[1]];
+ pci_irqs[2] = mpic[pci_irq_nrs[2]];
+ pci_irqs[3] = mpic[pci_irq_nrs[3]];
+ pci_bus = ppce500_pci_init(pci_irqs, MPC8544_PCI_REGS_BASE);
+ if (!pci_bus)
+ printf("couldn't create PCI controller!\n");
+
+ isa_mmio_init(MPC8544_PCI_IO, MPC8544_PCI_IOLEN);
+
+ if (pci_bus) {
+ int unit_id = 0;
+
+ /* Add virtio block devices. */
+ while ((i = drive_get_index(IF_VIRTIO, 0, unit_id)) != -1) {
+ virtio_blk_init(pci_bus, drives_table[i].bdrv);
+ unit_id++;
+ }
+
+ /* Register network interfaces. */
+ for (i = 0; i < nb_nics; i++) {
+ pci_nic_init(pci_bus, &nd_table[i], -1, "virtio");
+ }
+ }
+
+ /* Load kernel. */
+ if (kernel_filename) {
+ kernel_size = load_uimage(kernel_filename, &entry, &loadaddr, NULL);
+ if (kernel_size < 0) {
+ kernel_size = load_elf(kernel_filename, 0, &elf_entry, &elf_lowaddr,
+ NULL);
+ 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) {
+ initrd_size = load_image(initrd_filename, phys_ram_base + initrd_base);
+
+ if (initrd_size < 0) {
+ fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
+ initrd_filename);
+ exit(1);
+ }
+ }
+
+ /* If we're loading a kernel directly, we must load the device tree too. */
+ if (kernel_filename) {
+ fdt = mpc8544_load_device_tree(phys_ram_base + dt_base, ram_size,
+ initrd_base, initrd_size, kernel_cmdline);
+ if (fdt == NULL) {
+ fprintf(stderr, "couldn't load device tree\n");
+ exit(1);
+ }
+
+ /* Set initial guest state. */
+ env->gpr[1] = (16<<20) - 8;
+ env->gpr[3] = dt_base;
+ env->nip = entry;
+ /* XXX we currently depend on KVM to create some initial TLB entries. */
+ }
+
+ if (kvm_enabled())
+ kvmppc_init();
+
+ return;
+}
+
+QEMUMachine mpc8544ds_machine = {
+ .name = "mpc8544ds",
+ .desc = "mpc8544ds",
+ .init = mpc8544ds_init,
+ .ram_require = RAM_SIZES_ALIGN | RAMSIZE_FIXED,
+};