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Commit | Line | Data |
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2c9fade2 AJ |
1 | /* |
2 | * Qemu PowerPC 440 Bamboo board emulation | |
3 | * | |
4 | * Copyright 2007 IBM Corporation. | |
5 | * Authors: | |
6 | * Jerone Young <jyoung5@us.ibm.com> | |
7 | * Christian Ehrhardt <ehrhardt@linux.vnet.ibm.com> | |
8 | * Hollis Blanchard <hollisb@us.ibm.com> | |
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" | |
2c9fade2 AJ |
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 | ||
7ec632b4 | 28 | static void *bamboo_load_device_tree(target_phys_addr_t addr, |
2c9fade2 AJ |
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 }; | |
37 | char *path; | |
7ec632b4 | 38 | int fdt_size; |
2c9fade2 AJ |
39 | int pathlen; |
40 | int ret; | |
41 | ||
42 | pathlen = snprintf(NULL, 0, "%s/%s", bios_dir, BINARY_DEVICE_TREE_FILE) + 1; | |
43 | path = qemu_malloc(pathlen); | |
2c9fade2 AJ |
44 | |
45 | snprintf(path, pathlen, "%s/%s", bios_dir, BINARY_DEVICE_TREE_FILE); | |
46 | ||
7ec632b4 | 47 | fdt = load_device_tree(path, &fdt_size); |
2c9fade2 AJ |
48 | free(path); |
49 | if (fdt == NULL) | |
50 | goto out; | |
51 | ||
52 | /* Manipulate device tree in memory. */ | |
53 | ||
54 | ret = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property, | |
55 | sizeof(mem_reg_property)); | |
56 | if (ret < 0) | |
57 | fprintf(stderr, "couldn't set /memory/reg\n"); | |
58 | ||
59 | ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start", | |
60 | initrd_base); | |
61 | if (ret < 0) | |
62 | fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n"); | |
63 | ||
64 | ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end", | |
65 | (initrd_base + initrd_size)); | |
66 | if (ret < 0) | |
67 | fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n"); | |
68 | ||
69 | ret = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", | |
70 | kernel_cmdline); | |
71 | if (ret < 0) | |
72 | fprintf(stderr, "couldn't set /chosen/bootargs\n"); | |
73 | ||
74 | if (kvm_enabled()) | |
75 | kvmppc_fdt_update(fdt); | |
76 | ||
7ec632b4 PB |
77 | cpu_physical_memory_write (addr, (void *)fdt, fdt_size); |
78 | ||
2c9fade2 AJ |
79 | out: |
80 | #endif | |
81 | ||
82 | return fdt; | |
83 | } | |
84 | ||
fbe1b595 | 85 | static void bamboo_init(ram_addr_t ram_size, |
a147d62b | 86 | const char *boot_device, |
2c9fade2 AJ |
87 | const char *kernel_filename, |
88 | const char *kernel_cmdline, | |
89 | const char *initrd_filename, | |
90 | const char *cpu_model) | |
91 | { | |
92 | unsigned int pci_irq_nrs[4] = { 28, 27, 26, 25 }; | |
2c9fade2 AJ |
93 | PCIBus *pcibus; |
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. */ | |
107 | env = ppc440ep_init(&ram_size, &pcibus, pci_irq_nrs, 1); | |
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) { | |
07e3af9a | 114 | pci_create_simple(pcibus, -1, "virtio-blk"); |
2c9fade2 AJ |
115 | unit_id++; |
116 | } | |
117 | ||
5fc1503e AL |
118 | /* Add virtio console devices */ |
119 | for(i = 0; i < MAX_VIRTIO_CONSOLES; i++) { | |
0e058a8a PB |
120 | if (virtcon_hds[i]) { |
121 | pci_create_simple(pcibus, -1, "virtio-console"); | |
122 | } | |
5fc1503e AL |
123 | } |
124 | ||
2c9fade2 AJ |
125 | /* Register network interfaces. */ |
126 | for (i = 0; i < nb_nics; i++) { | |
cb457d76 AL |
127 | /* There are no PCI NICs on the Bamboo board, but there are |
128 | * PCI slots, so we can pick whatever default model we want. */ | |
129 | pci_nic_init(pcibus, &nd_table[i], -1, "e1000"); | |
2c9fade2 AJ |
130 | } |
131 | } | |
132 | ||
133 | /* Load kernel. */ | |
134 | if (kernel_filename) { | |
135 | kernel_size = load_uimage(kernel_filename, &entry, &loadaddr, NULL); | |
136 | if (kernel_size < 0) { | |
137 | kernel_size = load_elf(kernel_filename, 0, &elf_entry, &elf_lowaddr, | |
138 | NULL); | |
139 | entry = elf_entry; | |
140 | loadaddr = elf_lowaddr; | |
141 | } | |
142 | /* XXX try again as binary */ | |
143 | if (kernel_size < 0) { | |
144 | fprintf(stderr, "qemu: could not load kernel '%s'\n", | |
145 | kernel_filename); | |
146 | exit(1); | |
147 | } | |
148 | } | |
149 | ||
150 | /* Load initrd. */ | |
151 | if (initrd_filename) { | |
152 | initrd_base = kernel_size + loadaddr; | |
dcac9679 PB |
153 | initrd_size = load_image_targphys(initrd_filename, initrd_base, |
154 | ram_size - initrd_base); | |
2c9fade2 AJ |
155 | |
156 | if (initrd_size < 0) { | |
157 | fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", | |
158 | initrd_filename); | |
159 | exit(1); | |
160 | } | |
161 | } | |
162 | ||
163 | /* If we're loading a kernel directly, we must load the device tree too. */ | |
164 | if (kernel_filename) { | |
165 | if (initrd_base) | |
166 | dt_base = initrd_base + initrd_size; | |
167 | else | |
168 | dt_base = kernel_size + loadaddr; | |
169 | ||
7ec632b4 | 170 | fdt = bamboo_load_device_tree(dt_base, ram_size, |
2c9fade2 AJ |
171 | initrd_base, initrd_size, kernel_cmdline); |
172 | if (fdt == NULL) { | |
173 | fprintf(stderr, "couldn't load device tree\n"); | |
174 | exit(1); | |
175 | } | |
176 | ||
177 | /* Set initial guest state. */ | |
178 | env->gpr[1] = (16<<20) - 8; | |
179 | env->gpr[3] = dt_base; | |
180 | env->nip = entry; | |
181 | /* XXX we currently depend on KVM to create some initial TLB entries. */ | |
182 | } | |
183 | ||
184 | if (kvm_enabled()) | |
185 | kvmppc_init(); | |
186 | } | |
187 | ||
188 | QEMUMachine bamboo_machine = { | |
189 | .name = "bamboo", | |
190 | .desc = "bamboo", | |
191 | .init = bamboo_init, | |
2c9fade2 | 192 | }; |