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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"
1.1.1.3 root 25: #include "loader.h"
26: #include "elf.h"
1.1 root 27:
28: #define BINARY_DEVICE_TREE_FILE "bamboo.dtb"
29:
1.1.1.4 ! root 30: static int bamboo_load_device_tree(target_phys_addr_t addr,
1.1 root 31: uint32_t ramsize,
32: target_phys_addr_t initrd_base,
33: target_phys_addr_t initrd_size,
34: const char *kernel_cmdline)
35: {
1.1.1.4 ! root 36: int ret = -1;
1.1.1.3 root 37: #ifdef CONFIG_FDT
1.1 root 38: uint32_t mem_reg_property[] = { 0, 0, ramsize };
1.1.1.2 root 39: char *filename;
40: int fdt_size;
1.1.1.4 ! root 41: void *fdt;
1.1 root 42:
1.1.1.2 root 43: filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
44: if (!filename) {
1.1 root 45: goto out;
1.1.1.2 root 46: }
47: fdt = load_device_tree(filename, &fdt_size);
48: qemu_free(filename);
49: if (fdt == NULL) {
50: goto out;
51: }
1.1 root 52:
53: /* Manipulate device tree in memory. */
54:
55: ret = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property,
56: sizeof(mem_reg_property));
57: if (ret < 0)
58: fprintf(stderr, "couldn't set /memory/reg\n");
59:
60: ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start",
61: initrd_base);
62: if (ret < 0)
63: fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n");
64:
65: ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end",
66: (initrd_base + initrd_size));
67: if (ret < 0)
68: fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
69:
70: ret = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs",
71: kernel_cmdline);
72: if (ret < 0)
73: fprintf(stderr, "couldn't set /chosen/bootargs\n");
74:
75: if (kvm_enabled())
76: kvmppc_fdt_update(fdt);
77:
1.1.1.4 ! root 78: ret = rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr);
! 79: qemu_free(fdt);
1.1.1.2 root 80:
1.1 root 81: out:
82: #endif
83:
1.1.1.4 ! root 84: return ret;
1.1 root 85: }
86:
1.1.1.2 root 87: static void bamboo_init(ram_addr_t ram_size,
1.1 root 88: const char *boot_device,
89: const char *kernel_filename,
90: const char *kernel_cmdline,
91: const char *initrd_filename,
92: const char *cpu_model)
93: {
94: unsigned int pci_irq_nrs[4] = { 28, 27, 26, 25 };
95: PCIBus *pcibus;
96: CPUState *env;
97: uint64_t elf_entry;
98: uint64_t elf_lowaddr;
1.1.1.3 root 99: target_phys_addr_t entry = 0;
100: target_phys_addr_t loadaddr = 0;
1.1 root 101: target_long kernel_size = 0;
102: target_ulong initrd_base = 0;
103: target_long initrd_size = 0;
104: target_ulong dt_base = 0;
105: int i;
106:
107: /* Setup CPU. */
1.1.1.2 root 108: env = ppc440ep_init(&ram_size, &pcibus, pci_irq_nrs, 1, cpu_model);
1.1 root 109:
110: if (pcibus) {
111: /* Register network interfaces. */
112: for (i = 0; i < nb_nics; i++) {
113: /* There are no PCI NICs on the Bamboo board, but there are
114: * PCI slots, so we can pick whatever default model we want. */
1.1.1.3 root 115: pci_nic_init_nofail(&nd_table[i], "e1000", NULL);
1.1 root 116: }
117: }
118:
119: /* Load kernel. */
120: if (kernel_filename) {
121: kernel_size = load_uimage(kernel_filename, &entry, &loadaddr, NULL);
122: if (kernel_size < 0) {
1.1.1.4 ! root 123: kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry,
! 124: &elf_lowaddr, NULL, 1, ELF_MACHINE, 0);
1.1 root 125: entry = elf_entry;
126: loadaddr = elf_lowaddr;
127: }
128: /* XXX try again as binary */
129: if (kernel_size < 0) {
130: fprintf(stderr, "qemu: could not load kernel '%s'\n",
131: kernel_filename);
132: exit(1);
133: }
134: }
135:
136: /* Load initrd. */
137: if (initrd_filename) {
138: initrd_base = kernel_size + loadaddr;
1.1.1.2 root 139: initrd_size = load_image_targphys(initrd_filename, initrd_base,
140: ram_size - initrd_base);
1.1 root 141:
142: if (initrd_size < 0) {
143: fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
144: initrd_filename);
145: exit(1);
146: }
147: }
148:
149: /* If we're loading a kernel directly, we must load the device tree too. */
150: if (kernel_filename) {
151: if (initrd_base)
152: dt_base = initrd_base + initrd_size;
153: else
154: dt_base = kernel_size + loadaddr;
155:
1.1.1.4 ! root 156: if (bamboo_load_device_tree(dt_base, ram_size,
! 157: initrd_base, initrd_size, kernel_cmdline) < 0) {
1.1 root 158: fprintf(stderr, "couldn't load device tree\n");
159: exit(1);
160: }
161:
1.1.1.4 ! root 162: cpu_synchronize_state(env);
! 163:
1.1 root 164: /* Set initial guest state. */
165: env->gpr[1] = (16<<20) - 8;
166: env->gpr[3] = dt_base;
167: env->nip = entry;
168: /* XXX we currently depend on KVM to create some initial TLB entries. */
169: }
170:
171: if (kvm_enabled())
172: kvmppc_init();
173: }
174:
1.1.1.2 root 175: static QEMUMachine bamboo_machine = {
1.1.1.4 ! root 176: .name = "bamboo-0.13",
! 177: .alias = "bamboo",
! 178: .desc = "bamboo",
! 179: .init = bamboo_init,
! 180: };
! 181:
! 182: static QEMUMachine bamboo_machine_v0_12 = {
! 183: .name = "bamboo-0.12",
1.1 root 184: .desc = "bamboo",
185: .init = bamboo_init,
1.1.1.4 ! root 186: .compat_props = (GlobalProperty[]) {
! 187: {
! 188: .driver = "virtio-serial-pci",
! 189: .property = "max_ports",
! 190: .value = stringify(1),
! 191: },{
! 192: .driver = "virtio-serial-pci",
! 193: .property = "vectors",
! 194: .value = stringify(0),
! 195: },
! 196: { /* end of list */ }
! 197: },
1.1 root 198: };
1.1.1.2 root 199:
200: static void bamboo_machine_init(void)
201: {
202: qemu_register_machine(&bamboo_machine);
1.1.1.4 ! root 203: qemu_register_machine(&bamboo_machine_v0_12);
1.1.1.2 root 204: }
205:
206: machine_init(bamboo_machine_init);
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