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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" | |
ca20cf32 BS |
25 | #include "loader.h" |
26 | #include "elf.h" | |
2c9fade2 AJ |
27 | |
28 | #define BINARY_DEVICE_TREE_FILE "bamboo.dtb" | |
29 | ||
04088adb | 30 | static int bamboo_load_device_tree(target_phys_addr_t addr, |
2c9fade2 | 31 | uint32_t ramsize, |
c227f099 AL |
32 | target_phys_addr_t initrd_base, |
33 | target_phys_addr_t initrd_size, | |
2c9fade2 AJ |
34 | const char *kernel_cmdline) |
35 | { | |
36 | void *fdt = NULL; | |
3f0855b1 | 37 | #ifdef CONFIG_FDT |
2c9fade2 | 38 | uint32_t mem_reg_property[] = { 0, 0, ramsize }; |
5cea8590 | 39 | char *filename; |
7ec632b4 | 40 | int fdt_size; |
2c9fade2 AJ |
41 | int ret; |
42 | ||
5cea8590 PB |
43 | filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE); |
44 | if (!filename) { | |
04088adb | 45 | ret = -1; |
5cea8590 PB |
46 | goto out; |
47 | } | |
48 | fdt = load_device_tree(filename, &fdt_size); | |
49 | qemu_free(filename); | |
50 | if (fdt == NULL) { | |
04088adb | 51 | ret = -1; |
2c9fade2 | 52 | goto out; |
5cea8590 | 53 | } |
2c9fade2 AJ |
54 | |
55 | /* Manipulate device tree in memory. */ | |
56 | ||
57 | ret = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property, | |
58 | sizeof(mem_reg_property)); | |
59 | if (ret < 0) | |
60 | fprintf(stderr, "couldn't set /memory/reg\n"); | |
61 | ||
62 | ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start", | |
63 | initrd_base); | |
64 | if (ret < 0) | |
65 | fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n"); | |
66 | ||
67 | ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end", | |
68 | (initrd_base + initrd_size)); | |
69 | if (ret < 0) | |
70 | fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n"); | |
71 | ||
72 | ret = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", | |
73 | kernel_cmdline); | |
74 | if (ret < 0) | |
75 | fprintf(stderr, "couldn't set /chosen/bootargs\n"); | |
76 | ||
77 | if (kvm_enabled()) | |
78 | kvmppc_fdt_update(fdt); | |
79 | ||
04088adb LY |
80 | ret = rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr); |
81 | qemu_free(fdt); | |
7ec632b4 | 82 | |
2c9fade2 AJ |
83 | out: |
84 | #endif | |
85 | ||
04088adb | 86 | return ret; |
2c9fade2 AJ |
87 | } |
88 | ||
c227f099 | 89 | static void bamboo_init(ram_addr_t ram_size, |
a147d62b | 90 | const char *boot_device, |
2c9fade2 AJ |
91 | const char *kernel_filename, |
92 | const char *kernel_cmdline, | |
93 | const char *initrd_filename, | |
94 | const char *cpu_model) | |
95 | { | |
96 | unsigned int pci_irq_nrs[4] = { 28, 27, 26, 25 }; | |
2c9fade2 AJ |
97 | PCIBus *pcibus; |
98 | CPUState *env; | |
99 | uint64_t elf_entry; | |
100 | uint64_t elf_lowaddr; | |
c227f099 AL |
101 | target_phys_addr_t entry = 0; |
102 | target_phys_addr_t loadaddr = 0; | |
2c9fade2 AJ |
103 | target_long kernel_size = 0; |
104 | target_ulong initrd_base = 0; | |
105 | target_long initrd_size = 0; | |
106 | target_ulong dt_base = 0; | |
2c9fade2 AJ |
107 | int i; |
108 | ||
109 | /* Setup CPU. */ | |
727170b6 | 110 | env = ppc440ep_init(&ram_size, &pcibus, pci_irq_nrs, 1, cpu_model); |
2c9fade2 AJ |
111 | |
112 | if (pcibus) { | |
2c9fade2 AJ |
113 | /* Register network interfaces. */ |
114 | for (i = 0; i < nb_nics; i++) { | |
cb457d76 AL |
115 | /* There are no PCI NICs on the Bamboo board, but there are |
116 | * PCI slots, so we can pick whatever default model we want. */ | |
07caea31 | 117 | pci_nic_init_nofail(&nd_table[i], "e1000", NULL); |
2c9fade2 AJ |
118 | } |
119 | } | |
120 | ||
121 | /* Load kernel. */ | |
122 | if (kernel_filename) { | |
123 | kernel_size = load_uimage(kernel_filename, &entry, &loadaddr, NULL); | |
124 | if (kernel_size < 0) { | |
125 | kernel_size = load_elf(kernel_filename, 0, &elf_entry, &elf_lowaddr, | |
ca20cf32 | 126 | NULL, 1, ELF_MACHINE, 0); |
2c9fade2 AJ |
127 | entry = elf_entry; |
128 | loadaddr = elf_lowaddr; | |
129 | } | |
130 | /* XXX try again as binary */ | |
131 | if (kernel_size < 0) { | |
132 | fprintf(stderr, "qemu: could not load kernel '%s'\n", | |
133 | kernel_filename); | |
134 | exit(1); | |
135 | } | |
136 | } | |
137 | ||
138 | /* Load initrd. */ | |
139 | if (initrd_filename) { | |
140 | initrd_base = kernel_size + loadaddr; | |
dcac9679 PB |
141 | initrd_size = load_image_targphys(initrd_filename, initrd_base, |
142 | ram_size - initrd_base); | |
2c9fade2 AJ |
143 | |
144 | if (initrd_size < 0) { | |
145 | fprintf(stderr, "qemu: could not load initial ram disk '%s'\n", | |
146 | initrd_filename); | |
147 | exit(1); | |
148 | } | |
149 | } | |
150 | ||
151 | /* If we're loading a kernel directly, we must load the device tree too. */ | |
152 | if (kernel_filename) { | |
153 | if (initrd_base) | |
154 | dt_base = initrd_base + initrd_size; | |
155 | else | |
156 | dt_base = kernel_size + loadaddr; | |
157 | ||
04088adb LY |
158 | if (bamboo_load_device_tree(dt_base, ram_size, |
159 | initrd_base, initrd_size, kernel_cmdline) < 0) { | |
2c9fade2 AJ |
160 | fprintf(stderr, "couldn't load device tree\n"); |
161 | exit(1); | |
162 | } | |
163 | ||
c4963817 LY |
164 | cpu_synchronize_state(env); |
165 | ||
2c9fade2 AJ |
166 | /* Set initial guest state. */ |
167 | env->gpr[1] = (16<<20) - 8; | |
168 | env->gpr[3] = dt_base; | |
169 | env->nip = entry; | |
170 | /* XXX we currently depend on KVM to create some initial TLB entries. */ | |
171 | } | |
172 | ||
173 | if (kvm_enabled()) | |
174 | kvmppc_init(); | |
175 | } | |
176 | ||
f80f9ec9 | 177 | static QEMUMachine bamboo_machine = { |
2c9fade2 AJ |
178 | .name = "bamboo", |
179 | .desc = "bamboo", | |
180 | .init = bamboo_init, | |
2c9fade2 | 181 | }; |
f80f9ec9 AL |
182 | |
183 | static void bamboo_machine_init(void) | |
184 | { | |
185 | qemu_register_machine(&bamboo_machine); | |
186 | } | |
187 | ||
188 | machine_init(bamboo_machine_init); |