]>
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" | |
3e9f0113 | 26 | #include "exec-memory.h" |
2c9fade2 AJ |
27 | |
28 | #define BINARY_DEVICE_TREE_FILE "bamboo.dtb" | |
29 | ||
ceee6da6 HB |
30 | /* from u-boot */ |
31 | #define KERNEL_ADDR 0x1000000 | |
32 | #define FDT_ADDR 0x1800000 | |
33 | #define RAMDISK_ADDR 0x1900000 | |
34 | ||
04088adb | 35 | static int bamboo_load_device_tree(target_phys_addr_t addr, |
2c9fade2 | 36 | uint32_t ramsize, |
c227f099 AL |
37 | target_phys_addr_t initrd_base, |
38 | target_phys_addr_t initrd_size, | |
2c9fade2 AJ |
39 | const char *kernel_cmdline) |
40 | { | |
dbf916d8 | 41 | int ret = -1; |
3f0855b1 | 42 | #ifdef CONFIG_FDT |
2c9fade2 | 43 | uint32_t mem_reg_property[] = { 0, 0, ramsize }; |
5cea8590 | 44 | char *filename; |
7ec632b4 | 45 | int fdt_size; |
dbf916d8 | 46 | void *fdt; |
7dadd40c AG |
47 | uint32_t tb_freq = 400000000; |
48 | uint32_t clock_freq = 400000000; | |
2c9fade2 | 49 | |
5cea8590 PB |
50 | filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE); |
51 | if (!filename) { | |
52 | goto out; | |
53 | } | |
54 | fdt = load_device_tree(filename, &fdt_size); | |
7267c094 | 55 | g_free(filename); |
5cea8590 | 56 | if (fdt == NULL) { |
2c9fade2 | 57 | goto out; |
5cea8590 | 58 | } |
2c9fade2 AJ |
59 | |
60 | /* Manipulate device tree in memory. */ | |
61 | ||
62 | ret = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property, | |
63 | sizeof(mem_reg_property)); | |
64 | if (ret < 0) | |
65 | fprintf(stderr, "couldn't set /memory/reg\n"); | |
66 | ||
67 | ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start", | |
68 | initrd_base); | |
69 | if (ret < 0) | |
70 | fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n"); | |
71 | ||
72 | ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end", | |
73 | (initrd_base + initrd_size)); | |
74 | if (ret < 0) | |
75 | fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n"); | |
76 | ||
77 | ret = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", | |
78 | kernel_cmdline); | |
79 | if (ret < 0) | |
80 | fprintf(stderr, "couldn't set /chosen/bootargs\n"); | |
81 | ||
7dadd40c AG |
82 | /* Copy data from the host device tree into the guest. Since the guest can |
83 | * directly access the timebase without host involvement, we must expose | |
84 | * the correct frequencies. */ | |
a489f7f7 | 85 | if (kvm_enabled()) { |
7dadd40c AG |
86 | tb_freq = kvmppc_get_tbfreq(); |
87 | clock_freq = kvmppc_get_clockfreq(); | |
a489f7f7 | 88 | } |
2c9fade2 | 89 | |
7dadd40c AG |
90 | qemu_devtree_setprop_cell(fdt, "/cpus/cpu@0", "clock-frequency", |
91 | clock_freq); | |
92 | qemu_devtree_setprop_cell(fdt, "/cpus/cpu@0", "timebase-frequency", | |
93 | tb_freq); | |
2c9fade2 | 94 | |
04088adb | 95 | ret = rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr); |
7267c094 | 96 | g_free(fdt); |
7ec632b4 | 97 | |
2c9fade2 AJ |
98 | out: |
99 | #endif | |
100 | ||
04088adb | 101 | return ret; |
2c9fade2 AJ |
102 | } |
103 | ||
c227f099 | 104 | static void bamboo_init(ram_addr_t ram_size, |
a147d62b | 105 | const char *boot_device, |
2c9fade2 AJ |
106 | const char *kernel_filename, |
107 | const char *kernel_cmdline, | |
108 | const char *initrd_filename, | |
109 | const char *cpu_model) | |
110 | { | |
111 | unsigned int pci_irq_nrs[4] = { 28, 27, 26, 25 }; | |
3e9f0113 | 112 | MemoryRegion *address_space_mem = get_system_memory(); |
2c9fade2 AJ |
113 | PCIBus *pcibus; |
114 | CPUState *env; | |
115 | uint64_t elf_entry; | |
116 | uint64_t elf_lowaddr; | |
c227f099 AL |
117 | target_phys_addr_t entry = 0; |
118 | target_phys_addr_t loadaddr = 0; | |
2c9fade2 | 119 | target_long initrd_size = 0; |
ceee6da6 | 120 | int success; |
2c9fade2 AJ |
121 | int i; |
122 | ||
123 | /* Setup CPU. */ | |
3e9f0113 RH |
124 | env = ppc440ep_init(address_space_mem, &ram_size, &pcibus, |
125 | pci_irq_nrs, 1, cpu_model); | |
2c9fade2 AJ |
126 | |
127 | if (pcibus) { | |
2c9fade2 AJ |
128 | /* Register network interfaces. */ |
129 | for (i = 0; i < nb_nics; i++) { | |
cb457d76 AL |
130 | /* There are no PCI NICs on the Bamboo board, but there are |
131 | * PCI slots, so we can pick whatever default model we want. */ | |
07caea31 | 132 | pci_nic_init_nofail(&nd_table[i], "e1000", NULL); |
2c9fade2 AJ |
133 | } |
134 | } | |
135 | ||
136 | /* Load kernel. */ | |
137 | if (kernel_filename) { | |
ceee6da6 HB |
138 | success = load_uimage(kernel_filename, &entry, &loadaddr, NULL); |
139 | if (success < 0) { | |
140 | success = load_elf(kernel_filename, NULL, NULL, &elf_entry, | |
141 | &elf_lowaddr, NULL, 1, ELF_MACHINE, 0); | |
2c9fade2 AJ |
142 | entry = elf_entry; |
143 | loadaddr = elf_lowaddr; | |
144 | } | |
145 | /* XXX try again as binary */ | |
ceee6da6 | 146 | if (success < 0) { |
2c9fade2 AJ |
147 | fprintf(stderr, "qemu: could not load kernel '%s'\n", |
148 | kernel_filename); | |
149 | exit(1); | |
150 | } | |
151 | } | |
152 | ||
153 | /* Load initrd. */ | |
154 | if (initrd_filename) { | |
ceee6da6 HB |
155 | initrd_size = load_image_targphys(initrd_filename, RAMDISK_ADDR, |
156 | ram_size - RAMDISK_ADDR); | |
2c9fade2 AJ |
157 | |
158 | if (initrd_size < 0) { | |
ceee6da6 HB |
159 | fprintf(stderr, "qemu: could not load ram disk '%s' at %x\n", |
160 | initrd_filename, RAMDISK_ADDR); | |
2c9fade2 AJ |
161 | exit(1); |
162 | } | |
163 | } | |
164 | ||
165 | /* If we're loading a kernel directly, we must load the device tree too. */ | |
166 | if (kernel_filename) { | |
ceee6da6 HB |
167 | if (bamboo_load_device_tree(FDT_ADDR, ram_size, RAMDISK_ADDR, |
168 | initrd_size, kernel_cmdline) < 0) { | |
2c9fade2 AJ |
169 | fprintf(stderr, "couldn't load device tree\n"); |
170 | exit(1); | |
171 | } | |
172 | ||
173 | /* Set initial guest state. */ | |
174 | env->gpr[1] = (16<<20) - 8; | |
ceee6da6 | 175 | env->gpr[3] = FDT_ADDR; |
2c9fade2 AJ |
176 | env->nip = entry; |
177 | /* XXX we currently depend on KVM to create some initial TLB entries. */ | |
178 | } | |
179 | ||
180 | if (kvm_enabled()) | |
181 | kvmppc_init(); | |
182 | } | |
183 | ||
f80f9ec9 | 184 | static QEMUMachine bamboo_machine = { |
977b6b91 AS |
185 | .name = "bamboo-0.13", |
186 | .alias = "bamboo", | |
187 | .desc = "bamboo", | |
188 | .init = bamboo_init, | |
977b6b91 AS |
189 | }; |
190 | ||
191 | static QEMUMachine bamboo_machine_v0_12 = { | |
192 | .name = "bamboo-0.12", | |
2c9fade2 AJ |
193 | .desc = "bamboo", |
194 | .init = bamboo_init, | |
21be440c AS |
195 | .compat_props = (GlobalProperty[]) { |
196 | { | |
197 | .driver = "virtio-serial-pci", | |
1e29a009 | 198 | .property = "max_ports", |
21be440c AS |
199 | .value = stringify(1), |
200 | },{ | |
201 | .driver = "virtio-serial-pci", | |
202 | .property = "vectors", | |
203 | .value = stringify(0), | |
204 | }, | |
205 | { /* end of list */ } | |
206 | }, | |
2c9fade2 | 207 | }; |
f80f9ec9 AL |
208 | |
209 | static void bamboo_machine_init(void) | |
210 | { | |
211 | qemu_register_machine(&bamboo_machine); | |
977b6b91 | 212 | qemu_register_machine(&bamboo_machine_v0_12); |
f80f9ec9 AL |
213 | } |
214 | ||
215 | machine_init(bamboo_machine_init); |