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1.1 root 1: /*
2: * Qemu PowerPC 440 Bamboo board emulation
3: *
4: * Copyright 2007 IBM Corporation.
5: * Authors:
6: * Jerone Young <[email protected]>
7: * Christian Ehrhardt <[email protected]>
8: * Hollis Blanchard <[email protected]>
9: *
10: * This work is licensed under the GNU GPL license version 2 or later.
11: *
12: */
13:
14: #include "config.h"
15: #include "qemu-common.h"
16: #include "net.h"
17: #include "hw.h"
18: #include "pci.h"
19: #include "boards.h"
20: #include "sysemu.h"
21: #include "ppc440.h"
22: #include "kvm.h"
23: #include "kvm_ppc.h"
24: #include "device_tree.h"
25:
26: #define BINARY_DEVICE_TREE_FILE "bamboo.dtb"
27:
1.1.1.2 ! root 28: static void *bamboo_load_device_tree(target_phys_addr_t addr,
1.1 root 29: uint32_t ramsize,
30: target_phys_addr_t initrd_base,
31: target_phys_addr_t initrd_size,
32: const char *kernel_cmdline)
33: {
34: void *fdt = NULL;
35: #ifdef HAVE_FDT
36: uint32_t mem_reg_property[] = { 0, 0, ramsize };
1.1.1.2 ! root 37: char *filename;
! 38: int fdt_size;
1.1 root 39: int ret;
40:
1.1.1.2 ! root 41: filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
! 42: if (!filename) {
1.1 root 43: goto out;
1.1.1.2 ! root 44: }
! 45: fdt = load_device_tree(filename, &fdt_size);
! 46: qemu_free(filename);
! 47: if (fdt == NULL) {
! 48: goto out;
! 49: }
1.1 root 50:
51: /* Manipulate device tree in memory. */
52:
53: ret = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property,
54: sizeof(mem_reg_property));
55: if (ret < 0)
56: fprintf(stderr, "couldn't set /memory/reg\n");
57:
58: ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start",
59: initrd_base);
60: if (ret < 0)
61: fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n");
62:
63: ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end",
64: (initrd_base + initrd_size));
65: if (ret < 0)
66: fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
67:
68: ret = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs",
69: kernel_cmdline);
70: if (ret < 0)
71: fprintf(stderr, "couldn't set /chosen/bootargs\n");
72:
73: if (kvm_enabled())
74: kvmppc_fdt_update(fdt);
75:
1.1.1.2 ! root 76: cpu_physical_memory_write (addr, (void *)fdt, fdt_size);
! 77:
1.1 root 78: out:
79: #endif
80:
81: return fdt;
82: }
83:
1.1.1.2 ! root 84: static void bamboo_init(ram_addr_t ram_size,
1.1 root 85: const char *boot_device,
86: const char *kernel_filename,
87: const char *kernel_cmdline,
88: const char *initrd_filename,
89: const char *cpu_model)
90: {
91: unsigned int pci_irq_nrs[4] = { 28, 27, 26, 25 };
92: PCIBus *pcibus;
1.1.1.2 ! root 93: PCIDevice *pci_dev;
1.1 root 94: CPUState *env;
95: uint64_t elf_entry;
96: uint64_t elf_lowaddr;
97: target_ulong entry = 0;
98: target_ulong loadaddr = 0;
99: target_long kernel_size = 0;
100: target_ulong initrd_base = 0;
101: target_long initrd_size = 0;
102: target_ulong dt_base = 0;
103: void *fdt;
104: int i;
105:
106: /* Setup CPU. */
1.1.1.2 ! root 107: env = ppc440ep_init(&ram_size, &pcibus, pci_irq_nrs, 1, cpu_model);
1.1 root 108:
109: if (pcibus) {
110: int unit_id = 0;
111:
112: /* Add virtio block devices. */
113: while ((i = drive_get_index(IF_VIRTIO, 0, unit_id)) != -1) {
1.1.1.2 ! root 114: pci_dev = pci_create("virtio-blk-pci", drives_table[i].devaddr);
! 115: qdev_init(&pci_dev->qdev);
1.1 root 116: unit_id++;
117: }
118:
119: /* Add virtio console devices */
120: for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
1.1.1.2 ! root 121: if (virtcon_hds[i]) {
! 122: pci_create_simple(pcibus, -1, "virtio-console-pci");
! 123: }
1.1 root 124: }
125:
126: /* Register network interfaces. */
127: for (i = 0; i < nb_nics; i++) {
128: /* There are no PCI NICs on the Bamboo board, but there are
129: * PCI slots, so we can pick whatever default model we want. */
1.1.1.2 ! root 130: pci_nic_init(&nd_table[i], "e1000", NULL);
1.1 root 131: }
132: }
133:
134: /* Load kernel. */
135: if (kernel_filename) {
136: kernel_size = load_uimage(kernel_filename, &entry, &loadaddr, NULL);
137: if (kernel_size < 0) {
138: kernel_size = load_elf(kernel_filename, 0, &elf_entry, &elf_lowaddr,
139: NULL);
140: entry = elf_entry;
141: loadaddr = elf_lowaddr;
142: }
143: /* XXX try again as binary */
144: if (kernel_size < 0) {
145: fprintf(stderr, "qemu: could not load kernel '%s'\n",
146: kernel_filename);
147: exit(1);
148: }
149: }
150:
151: /* Load initrd. */
152: if (initrd_filename) {
153: initrd_base = kernel_size + loadaddr;
1.1.1.2 ! root 154: initrd_size = load_image_targphys(initrd_filename, initrd_base,
! 155: ram_size - initrd_base);
1.1 root 156:
157: if (initrd_size < 0) {
158: fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
159: initrd_filename);
160: exit(1);
161: }
162: }
163:
164: /* If we're loading a kernel directly, we must load the device tree too. */
165: if (kernel_filename) {
166: if (initrd_base)
167: dt_base = initrd_base + initrd_size;
168: else
169: dt_base = kernel_size + loadaddr;
170:
1.1.1.2 ! root 171: fdt = bamboo_load_device_tree(dt_base, ram_size,
1.1 root 172: initrd_base, initrd_size, kernel_cmdline);
173: if (fdt == NULL) {
174: fprintf(stderr, "couldn't load device tree\n");
175: exit(1);
176: }
177:
178: /* Set initial guest state. */
179: env->gpr[1] = (16<<20) - 8;
180: env->gpr[3] = dt_base;
181: env->nip = entry;
182: /* XXX we currently depend on KVM to create some initial TLB entries. */
183: }
184:
185: if (kvm_enabled())
186: kvmppc_init();
187: }
188:
1.1.1.2 ! root 189: static QEMUMachine bamboo_machine = {
1.1 root 190: .name = "bamboo",
191: .desc = "bamboo",
192: .init = bamboo_init,
193: };
1.1.1.2 ! root 194:
! 195: static void bamboo_machine_init(void)
! 196: {
! 197: qemu_register_machine(&bamboo_machine);
! 198: }
! 199:
! 200: machine_init(bamboo_machine_init);
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