root / hw / ppc440_bamboo.c @ 4677d8ed
History | View | Annotate | Download (5.5 kB)
1 | 2c9fade2 | aurel32 | /*
|
---|---|---|---|
2 | 2c9fade2 | aurel32 | * Qemu PowerPC 440 Bamboo board emulation
|
3 | 2c9fade2 | aurel32 | *
|
4 | 2c9fade2 | aurel32 | * Copyright 2007 IBM Corporation.
|
5 | 2c9fade2 | aurel32 | * Authors:
|
6 | 2c9fade2 | aurel32 | * Jerone Young <jyoung5@us.ibm.com>
|
7 | 2c9fade2 | aurel32 | * Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com>
|
8 | 2c9fade2 | aurel32 | * Hollis Blanchard <hollisb@us.ibm.com>
|
9 | 2c9fade2 | aurel32 | *
|
10 | 2c9fade2 | aurel32 | * This work is licensed under the GNU GPL license version 2 or later.
|
11 | 2c9fade2 | aurel32 | *
|
12 | 2c9fade2 | aurel32 | */
|
13 | 2c9fade2 | aurel32 | |
14 | 2c9fade2 | aurel32 | #include "config.h" |
15 | 2c9fade2 | aurel32 | #include "qemu-common.h" |
16 | 2c9fade2 | aurel32 | #include "net.h" |
17 | 2c9fade2 | aurel32 | #include "hw.h" |
18 | 2c9fade2 | aurel32 | #include "pci.h" |
19 | 2c9fade2 | aurel32 | #include "boards.h" |
20 | 2c9fade2 | aurel32 | #include "sysemu.h" |
21 | 2c9fade2 | aurel32 | #include "ppc440.h" |
22 | 2c9fade2 | aurel32 | #include "kvm.h" |
23 | 2c9fade2 | aurel32 | #include "kvm_ppc.h" |
24 | 2c9fade2 | aurel32 | #include "device_tree.h" |
25 | ca20cf32 | Blue Swirl | #include "loader.h" |
26 | ca20cf32 | Blue Swirl | #include "elf.h" |
27 | 2c9fade2 | aurel32 | |
28 | 2c9fade2 | aurel32 | #define BINARY_DEVICE_TREE_FILE "bamboo.dtb" |
29 | 2c9fade2 | aurel32 | |
30 | c227f099 | Anthony Liguori | static void *bamboo_load_device_tree(target_phys_addr_t addr, |
31 | 2c9fade2 | aurel32 | uint32_t ramsize, |
32 | c227f099 | Anthony Liguori | target_phys_addr_t initrd_base, |
33 | c227f099 | Anthony Liguori | target_phys_addr_t initrd_size, |
34 | 2c9fade2 | aurel32 | const char *kernel_cmdline) |
35 | 2c9fade2 | aurel32 | { |
36 | 2c9fade2 | aurel32 | void *fdt = NULL; |
37 | 3f0855b1 | Juan Quintela | #ifdef CONFIG_FDT
|
38 | 2c9fade2 | aurel32 | uint32_t mem_reg_property[] = { 0, 0, ramsize }; |
39 | 5cea8590 | Paul Brook | char *filename;
|
40 | 7ec632b4 | pbrook | int fdt_size;
|
41 | 2c9fade2 | aurel32 | int ret;
|
42 | 2c9fade2 | aurel32 | |
43 | 5cea8590 | Paul Brook | filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE); |
44 | 5cea8590 | Paul Brook | if (!filename) {
|
45 | 5cea8590 | Paul Brook | goto out;
|
46 | 5cea8590 | Paul Brook | } |
47 | 5cea8590 | Paul Brook | fdt = load_device_tree(filename, &fdt_size); |
48 | 5cea8590 | Paul Brook | qemu_free(filename); |
49 | 5cea8590 | Paul Brook | if (fdt == NULL) { |
50 | 2c9fade2 | aurel32 | goto out;
|
51 | 5cea8590 | Paul Brook | } |
52 | 2c9fade2 | aurel32 | |
53 | 2c9fade2 | aurel32 | /* Manipulate device tree in memory. */
|
54 | 2c9fade2 | aurel32 | |
55 | 2c9fade2 | aurel32 | ret = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property, |
56 | 2c9fade2 | aurel32 | sizeof(mem_reg_property));
|
57 | 2c9fade2 | aurel32 | if (ret < 0) |
58 | 2c9fade2 | aurel32 | fprintf(stderr, "couldn't set /memory/reg\n");
|
59 | 2c9fade2 | aurel32 | |
60 | 2c9fade2 | aurel32 | ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start", |
61 | 2c9fade2 | aurel32 | initrd_base); |
62 | 2c9fade2 | aurel32 | if (ret < 0) |
63 | 2c9fade2 | aurel32 | fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n");
|
64 | 2c9fade2 | aurel32 | |
65 | 2c9fade2 | aurel32 | ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end", |
66 | 2c9fade2 | aurel32 | (initrd_base + initrd_size)); |
67 | 2c9fade2 | aurel32 | if (ret < 0) |
68 | 2c9fade2 | aurel32 | fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
|
69 | 2c9fade2 | aurel32 | |
70 | 2c9fade2 | aurel32 | ret = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", |
71 | 2c9fade2 | aurel32 | kernel_cmdline); |
72 | 2c9fade2 | aurel32 | if (ret < 0) |
73 | 2c9fade2 | aurel32 | fprintf(stderr, "couldn't set /chosen/bootargs\n");
|
74 | 2c9fade2 | aurel32 | |
75 | 2c9fade2 | aurel32 | if (kvm_enabled())
|
76 | 2c9fade2 | aurel32 | kvmppc_fdt_update(fdt); |
77 | 2c9fade2 | aurel32 | |
78 | 7ec632b4 | pbrook | cpu_physical_memory_write (addr, (void *)fdt, fdt_size);
|
79 | 7ec632b4 | pbrook | |
80 | 2c9fade2 | aurel32 | out:
|
81 | 2c9fade2 | aurel32 | #endif
|
82 | 2c9fade2 | aurel32 | |
83 | 2c9fade2 | aurel32 | return fdt;
|
84 | 2c9fade2 | aurel32 | } |
85 | 2c9fade2 | aurel32 | |
86 | c227f099 | Anthony Liguori | static void bamboo_init(ram_addr_t ram_size, |
87 | a147d62b | blueswir1 | const char *boot_device, |
88 | 2c9fade2 | aurel32 | const char *kernel_filename, |
89 | 2c9fade2 | aurel32 | const char *kernel_cmdline, |
90 | 2c9fade2 | aurel32 | const char *initrd_filename, |
91 | 2c9fade2 | aurel32 | const char *cpu_model) |
92 | 2c9fade2 | aurel32 | { |
93 | 2c9fade2 | aurel32 | unsigned int pci_irq_nrs[4] = { 28, 27, 26, 25 }; |
94 | 2c9fade2 | aurel32 | PCIBus *pcibus; |
95 | 2c9fade2 | aurel32 | CPUState *env; |
96 | 2c9fade2 | aurel32 | uint64_t elf_entry; |
97 | 2c9fade2 | aurel32 | uint64_t elf_lowaddr; |
98 | c227f099 | Anthony Liguori | target_phys_addr_t entry = 0;
|
99 | c227f099 | Anthony Liguori | target_phys_addr_t loadaddr = 0;
|
100 | 2c9fade2 | aurel32 | target_long kernel_size = 0;
|
101 | 2c9fade2 | aurel32 | target_ulong initrd_base = 0;
|
102 | 2c9fade2 | aurel32 | target_long initrd_size = 0;
|
103 | 2c9fade2 | aurel32 | target_ulong dt_base = 0;
|
104 | 2c9fade2 | aurel32 | void *fdt;
|
105 | 2c9fade2 | aurel32 | int i;
|
106 | 2c9fade2 | aurel32 | |
107 | 2c9fade2 | aurel32 | /* Setup CPU. */
|
108 | 727170b6 | Blue Swirl | env = ppc440ep_init(&ram_size, &pcibus, pci_irq_nrs, 1, cpu_model);
|
109 | 2c9fade2 | aurel32 | |
110 | 2c9fade2 | aurel32 | if (pcibus) {
|
111 | 5fc1503e | aliguori | /* Add virtio console devices */
|
112 | 5fc1503e | aliguori | for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) { |
113 | 0e058a8a | Paul Brook | if (virtcon_hds[i]) {
|
114 | 53c25cea | Paul Brook | pci_create_simple(pcibus, -1, "virtio-console-pci"); |
115 | 0e058a8a | Paul Brook | } |
116 | 5fc1503e | aliguori | } |
117 | 5fc1503e | aliguori | |
118 | 2c9fade2 | aurel32 | /* Register network interfaces. */
|
119 | 2c9fade2 | aurel32 | for (i = 0; i < nb_nics; i++) { |
120 | cb457d76 | aliguori | /* There are no PCI NICs on the Bamboo board, but there are
|
121 | cb457d76 | aliguori | * PCI slots, so we can pick whatever default model we want. */
|
122 | 07caea31 | Markus Armbruster | pci_nic_init_nofail(&nd_table[i], "e1000", NULL); |
123 | 2c9fade2 | aurel32 | } |
124 | 2c9fade2 | aurel32 | } |
125 | 2c9fade2 | aurel32 | |
126 | 2c9fade2 | aurel32 | /* Load kernel. */
|
127 | 2c9fade2 | aurel32 | if (kernel_filename) {
|
128 | 2c9fade2 | aurel32 | kernel_size = load_uimage(kernel_filename, &entry, &loadaddr, NULL);
|
129 | 2c9fade2 | aurel32 | if (kernel_size < 0) { |
130 | 2c9fade2 | aurel32 | kernel_size = load_elf(kernel_filename, 0, &elf_entry, &elf_lowaddr,
|
131 | ca20cf32 | Blue Swirl | NULL, 1, ELF_MACHINE, 0); |
132 | 2c9fade2 | aurel32 | entry = elf_entry; |
133 | 2c9fade2 | aurel32 | loadaddr = elf_lowaddr; |
134 | 2c9fade2 | aurel32 | } |
135 | 2c9fade2 | aurel32 | /* XXX try again as binary */
|
136 | 2c9fade2 | aurel32 | if (kernel_size < 0) { |
137 | 2c9fade2 | aurel32 | fprintf(stderr, "qemu: could not load kernel '%s'\n",
|
138 | 2c9fade2 | aurel32 | kernel_filename); |
139 | 2c9fade2 | aurel32 | exit(1);
|
140 | 2c9fade2 | aurel32 | } |
141 | 2c9fade2 | aurel32 | } |
142 | 2c9fade2 | aurel32 | |
143 | 2c9fade2 | aurel32 | /* Load initrd. */
|
144 | 2c9fade2 | aurel32 | if (initrd_filename) {
|
145 | 2c9fade2 | aurel32 | initrd_base = kernel_size + loadaddr; |
146 | dcac9679 | pbrook | initrd_size = load_image_targphys(initrd_filename, initrd_base, |
147 | dcac9679 | pbrook | ram_size - initrd_base); |
148 | 2c9fade2 | aurel32 | |
149 | 2c9fade2 | aurel32 | if (initrd_size < 0) { |
150 | 2c9fade2 | aurel32 | fprintf(stderr, "qemu: could not load initial ram disk '%s'\n",
|
151 | 2c9fade2 | aurel32 | initrd_filename); |
152 | 2c9fade2 | aurel32 | exit(1);
|
153 | 2c9fade2 | aurel32 | } |
154 | 2c9fade2 | aurel32 | } |
155 | 2c9fade2 | aurel32 | |
156 | 2c9fade2 | aurel32 | /* If we're loading a kernel directly, we must load the device tree too. */
|
157 | 2c9fade2 | aurel32 | if (kernel_filename) {
|
158 | 2c9fade2 | aurel32 | if (initrd_base)
|
159 | 2c9fade2 | aurel32 | dt_base = initrd_base + initrd_size; |
160 | 2c9fade2 | aurel32 | else
|
161 | 2c9fade2 | aurel32 | dt_base = kernel_size + loadaddr; |
162 | 2c9fade2 | aurel32 | |
163 | 7ec632b4 | pbrook | fdt = bamboo_load_device_tree(dt_base, ram_size, |
164 | 2c9fade2 | aurel32 | initrd_base, initrd_size, kernel_cmdline); |
165 | 2c9fade2 | aurel32 | if (fdt == NULL) { |
166 | 2c9fade2 | aurel32 | fprintf(stderr, "couldn't load device tree\n");
|
167 | 2c9fade2 | aurel32 | exit(1);
|
168 | 2c9fade2 | aurel32 | } |
169 | 2c9fade2 | aurel32 | |
170 | 2c9fade2 | aurel32 | /* Set initial guest state. */
|
171 | 2c9fade2 | aurel32 | env->gpr[1] = (16<<20) - 8; |
172 | 2c9fade2 | aurel32 | env->gpr[3] = dt_base;
|
173 | 2c9fade2 | aurel32 | env->nip = entry; |
174 | 2c9fade2 | aurel32 | /* XXX we currently depend on KVM to create some initial TLB entries. */
|
175 | 2c9fade2 | aurel32 | } |
176 | 2c9fade2 | aurel32 | |
177 | 2c9fade2 | aurel32 | if (kvm_enabled())
|
178 | 2c9fade2 | aurel32 | kvmppc_init(); |
179 | 2c9fade2 | aurel32 | } |
180 | 2c9fade2 | aurel32 | |
181 | f80f9ec9 | Anthony Liguori | static QEMUMachine bamboo_machine = {
|
182 | 2c9fade2 | aurel32 | .name = "bamboo",
|
183 | 2c9fade2 | aurel32 | .desc = "bamboo",
|
184 | 2c9fade2 | aurel32 | .init = bamboo_init, |
185 | 2c9fade2 | aurel32 | }; |
186 | f80f9ec9 | Anthony Liguori | |
187 | f80f9ec9 | Anthony Liguori | static void bamboo_machine_init(void) |
188 | f80f9ec9 | Anthony Liguori | { |
189 | f80f9ec9 | Anthony Liguori | qemu_register_machine(&bamboo_machine); |
190 | f80f9ec9 | Anthony Liguori | } |
191 | f80f9ec9 | Anthony Liguori | |
192 | f80f9ec9 | Anthony Liguori | machine_init(bamboo_machine_init); |