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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:
1.1.1.2 root 30: static void *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: {
36: void *fdt = NULL;
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 root 41: int ret;
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:
1.1.1.2 root 78: cpu_physical_memory_write (addr, (void *)fdt, fdt_size);
79:
1.1 root 80: out:
81: #endif
82:
83: return fdt;
84: }
85:
1.1.1.2 root 86: static void bamboo_init(ram_addr_t ram_size,
1.1 root 87: const char *boot_device,
88: const char *kernel_filename,
89: const char *kernel_cmdline,
90: const char *initrd_filename,
91: const char *cpu_model)
92: {
93: unsigned int pci_irq_nrs[4] = { 28, 27, 26, 25 };
94: PCIBus *pcibus;
95: CPUState *env;
96: uint64_t elf_entry;
97: uint64_t elf_lowaddr;
1.1.1.3 ! root 98: target_phys_addr_t entry = 0;
! 99: target_phys_addr_t loadaddr = 0;
1.1 root 100: target_long kernel_size = 0;
101: target_ulong initrd_base = 0;
102: target_long initrd_size = 0;
103: target_ulong dt_base = 0;
104: void *fdt;
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: /* Add virtio console devices */
112: for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) {
1.1.1.2 root 113: if (virtcon_hds[i]) {
114: pci_create_simple(pcibus, -1, "virtio-console-pci");
115: }
1.1 root 116: }
117:
118: /* Register network interfaces. */
119: for (i = 0; i < nb_nics; i++) {
120: /* There are no PCI NICs on the Bamboo board, but there are
121: * PCI slots, so we can pick whatever default model we want. */
1.1.1.3 ! root 122: pci_nic_init_nofail(&nd_table[i], "e1000", NULL);
1.1 root 123: }
124: }
125:
126: /* Load kernel. */
127: if (kernel_filename) {
128: kernel_size = load_uimage(kernel_filename, &entry, &loadaddr, NULL);
129: if (kernel_size < 0) {
130: kernel_size = load_elf(kernel_filename, 0, &elf_entry, &elf_lowaddr,
1.1.1.3 ! root 131: NULL, 1, ELF_MACHINE, 0);
1.1 root 132: entry = elf_entry;
133: loadaddr = elf_lowaddr;
134: }
135: /* XXX try again as binary */
136: if (kernel_size < 0) {
137: fprintf(stderr, "qemu: could not load kernel '%s'\n",
138: kernel_filename);
139: exit(1);
140: }
141: }
142:
143: /* Load initrd. */
144: if (initrd_filename) {
145: initrd_base = kernel_size + loadaddr;
1.1.1.2 root 146: initrd_size = load_image_targphys(initrd_filename, initrd_base,
147: ram_size - initrd_base);
1.1 root 148:
149: if (initrd_size < 0) {
150: fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
151: initrd_filename);
152: exit(1);
153: }
154: }
155:
156: /* If we're loading a kernel directly, we must load the device tree too. */
157: if (kernel_filename) {
158: if (initrd_base)
159: dt_base = initrd_base + initrd_size;
160: else
161: dt_base = kernel_size + loadaddr;
162:
1.1.1.2 root 163: fdt = bamboo_load_device_tree(dt_base, ram_size,
1.1 root 164: initrd_base, initrd_size, kernel_cmdline);
165: if (fdt == NULL) {
166: fprintf(stderr, "couldn't load device tree\n");
167: exit(1);
168: }
169:
170: /* Set initial guest state. */
171: env->gpr[1] = (16<<20) - 8;
172: env->gpr[3] = dt_base;
173: env->nip = entry;
174: /* XXX we currently depend on KVM to create some initial TLB entries. */
175: }
176:
177: if (kvm_enabled())
178: kvmppc_init();
179: }
180:
1.1.1.2 root 181: static QEMUMachine bamboo_machine = {
1.1 root 182: .name = "bamboo",
183: .desc = "bamboo",
184: .init = bamboo_init,
185: };
1.1.1.2 root 186:
187: static void bamboo_machine_init(void)
188: {
189: qemu_register_machine(&bamboo_machine);
190: }
191:
192: machine_init(bamboo_machine_init);
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