]>
Commit | Line | Data |
---|---|---|
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 | 19 | #include "boards.h" |
2c9fade2 AJ |
20 | #include "ppc440.h" |
21 | #include "kvm.h" | |
22 | #include "kvm_ppc.h" | |
23 | #include "device_tree.h" | |
ca20cf32 BS |
24 | #include "loader.h" |
25 | #include "elf.h" | |
2c9fade2 AJ |
26 | |
27 | #define BINARY_DEVICE_TREE_FILE "bamboo.dtb" | |
28 | ||
ceee6da6 HB |
29 | /* from u-boot */ |
30 | #define KERNEL_ADDR 0x1000000 | |
31 | #define FDT_ADDR 0x1800000 | |
32 | #define RAMDISK_ADDR 0x1900000 | |
33 | ||
04088adb | 34 | static int bamboo_load_device_tree(target_phys_addr_t addr, |
2c9fade2 | 35 | uint32_t ramsize, |
c227f099 AL |
36 | target_phys_addr_t initrd_base, |
37 | target_phys_addr_t initrd_size, | |
2c9fade2 AJ |
38 | const char *kernel_cmdline) |
39 | { | |
dbf916d8 | 40 | int ret = -1; |
3f0855b1 | 41 | #ifdef CONFIG_FDT |
2c9fade2 | 42 | uint32_t mem_reg_property[] = { 0, 0, ramsize }; |
5cea8590 | 43 | char *filename; |
7ec632b4 | 44 | int fdt_size; |
dbf916d8 | 45 | void *fdt; |
2c9fade2 | 46 | |
5cea8590 PB |
47 | filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE); |
48 | if (!filename) { | |
49 | goto out; | |
50 | } | |
51 | fdt = load_device_tree(filename, &fdt_size); | |
52 | qemu_free(filename); | |
53 | if (fdt == NULL) { | |
2c9fade2 | 54 | goto out; |
5cea8590 | 55 | } |
2c9fade2 AJ |
56 | |
57 | /* Manipulate device tree in memory. */ | |
58 | ||
59 | ret = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property, | |
60 | sizeof(mem_reg_property)); | |
61 | if (ret < 0) | |
62 | fprintf(stderr, "couldn't set /memory/reg\n"); | |
63 | ||
64 | ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start", | |
65 | initrd_base); | |
66 | if (ret < 0) | |
67 | fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n"); | |
68 | ||
69 | ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end", | |
70 | (initrd_base + initrd_size)); | |
71 | if (ret < 0) | |
72 | fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n"); | |
73 | ||
74 | ret = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", | |
75 | kernel_cmdline); | |
76 | if (ret < 0) | |
77 | fprintf(stderr, "couldn't set /chosen/bootargs\n"); | |
78 | ||
79 | if (kvm_enabled()) | |
80 | kvmppc_fdt_update(fdt); | |
81 | ||
04088adb LY |
82 | ret = rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr); |
83 | qemu_free(fdt); | |
7ec632b4 | 84 | |
2c9fade2 AJ |
85 | out: |
86 | #endif | |
87 | ||
04088adb | 88 | return ret; |
2c9fade2 AJ |
89 | } |
90 | ||
c227f099 | 91 | static void bamboo_init(ram_addr_t ram_size, |
a147d62b | 92 | const char *boot_device, |
2c9fade2 AJ |
93 | const char *kernel_filename, |
94 | const char *kernel_cmdline, | |
95 | const char *initrd_filename, | |
96 | const char *cpu_model) | |
97 | { | |
98 | unsigned int pci_irq_nrs[4] = { 28, 27, 26, 25 }; | |
2c9fade2 AJ |
99 | PCIBus *pcibus; |
100 | CPUState *env; | |
101 | uint64_t elf_entry; | |
102 | uint64_t elf_lowaddr; | |
c227f099 AL |
103 | target_phys_addr_t entry = 0; |
104 | target_phys_addr_t loadaddr = 0; | |
2c9fade2 | 105 | target_long initrd_size = 0; |
ceee6da6 | 106 | int success; |
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) { | |
ceee6da6 HB |
123 | success = load_uimage(kernel_filename, &entry, &loadaddr, NULL); |
124 | if (success < 0) { | |
125 | success = load_elf(kernel_filename, NULL, NULL, &elf_entry, | |
126 | &elf_lowaddr, NULL, 1, ELF_MACHINE, 0); | |
2c9fade2 AJ |
127 | entry = elf_entry; |
128 | loadaddr = elf_lowaddr; | |
129 | } | |
130 | /* XXX try again as binary */ | |
ceee6da6 | 131 | if (success < 0) { |
2c9fade2 AJ |
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) { | |
ceee6da6 HB |
140 | initrd_size = load_image_targphys(initrd_filename, RAMDISK_ADDR, |
141 | ram_size - RAMDISK_ADDR); | |
2c9fade2 AJ |
142 | |
143 | if (initrd_size < 0) { | |
ceee6da6 HB |
144 | fprintf(stderr, "qemu: could not load ram disk '%s' at %x\n", |
145 | initrd_filename, RAMDISK_ADDR); | |
2c9fade2 AJ |
146 | exit(1); |
147 | } | |
148 | } | |
149 | ||
150 | /* If we're loading a kernel directly, we must load the device tree too. */ | |
151 | if (kernel_filename) { | |
ceee6da6 HB |
152 | if (bamboo_load_device_tree(FDT_ADDR, ram_size, RAMDISK_ADDR, |
153 | initrd_size, kernel_cmdline) < 0) { | |
2c9fade2 AJ |
154 | fprintf(stderr, "couldn't load device tree\n"); |
155 | exit(1); | |
156 | } | |
157 | ||
158 | /* Set initial guest state. */ | |
159 | env->gpr[1] = (16<<20) - 8; | |
ceee6da6 | 160 | env->gpr[3] = FDT_ADDR; |
2c9fade2 AJ |
161 | env->nip = entry; |
162 | /* XXX we currently depend on KVM to create some initial TLB entries. */ | |
163 | } | |
164 | ||
165 | if (kvm_enabled()) | |
166 | kvmppc_init(); | |
167 | } | |
168 | ||
f80f9ec9 | 169 | static QEMUMachine bamboo_machine = { |
977b6b91 AS |
170 | .name = "bamboo-0.13", |
171 | .alias = "bamboo", | |
172 | .desc = "bamboo", | |
173 | .init = bamboo_init, | |
977b6b91 AS |
174 | }; |
175 | ||
176 | static QEMUMachine bamboo_machine_v0_12 = { | |
177 | .name = "bamboo-0.12", | |
2c9fade2 AJ |
178 | .desc = "bamboo", |
179 | .init = bamboo_init, | |
21be440c AS |
180 | .compat_props = (GlobalProperty[]) { |
181 | { | |
182 | .driver = "virtio-serial-pci", | |
1e29a009 | 183 | .property = "max_ports", |
21be440c AS |
184 | .value = stringify(1), |
185 | },{ | |
186 | .driver = "virtio-serial-pci", | |
187 | .property = "vectors", | |
188 | .value = stringify(0), | |
189 | }, | |
190 | { /* end of list */ } | |
191 | }, | |
2c9fade2 | 192 | }; |
f80f9ec9 AL |
193 | |
194 | static void bamboo_machine_init(void) | |
195 | { | |
196 | qemu_register_machine(&bamboo_machine); | |
977b6b91 | 197 | qemu_register_machine(&bamboo_machine_v0_12); |
f80f9ec9 AL |
198 | } |
199 | ||
200 | machine_init(bamboo_machine_init); |