root / hw / ppc440_bamboo.c @ ee2479d3
History | View | Annotate | Download (5.8 kB)
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" |
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 |
#include "loader.h" |
26 |
#include "elf.h" |
27 |
|
28 |
#define BINARY_DEVICE_TREE_FILE "bamboo.dtb" |
29 |
|
30 |
/* from u-boot */
|
31 |
#define KERNEL_ADDR 0x1000000 |
32 |
#define FDT_ADDR 0x1800000 |
33 |
#define RAMDISK_ADDR 0x1900000 |
34 |
|
35 |
static int bamboo_load_device_tree(target_phys_addr_t addr, |
36 |
uint32_t ramsize, |
37 |
target_phys_addr_t initrd_base, |
38 |
target_phys_addr_t initrd_size, |
39 |
const char *kernel_cmdline) |
40 |
{ |
41 |
int ret = -1; |
42 |
#ifdef CONFIG_FDT
|
43 |
uint32_t mem_reg_property[] = { 0, 0, ramsize }; |
44 |
char *filename;
|
45 |
int fdt_size;
|
46 |
void *fdt;
|
47 |
|
48 |
filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE); |
49 |
if (!filename) {
|
50 |
goto out;
|
51 |
} |
52 |
fdt = load_device_tree(filename, &fdt_size); |
53 |
qemu_free(filename); |
54 |
if (fdt == NULL) { |
55 |
goto out;
|
56 |
} |
57 |
|
58 |
/* Manipulate device tree in memory. */
|
59 |
|
60 |
ret = qemu_devtree_setprop(fdt, "/memory", "reg", mem_reg_property, |
61 |
sizeof(mem_reg_property));
|
62 |
if (ret < 0) |
63 |
fprintf(stderr, "couldn't set /memory/reg\n");
|
64 |
|
65 |
ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-start", |
66 |
initrd_base); |
67 |
if (ret < 0) |
68 |
fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n");
|
69 |
|
70 |
ret = qemu_devtree_setprop_cell(fdt, "/chosen", "linux,initrd-end", |
71 |
(initrd_base + initrd_size)); |
72 |
if (ret < 0) |
73 |
fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
|
74 |
|
75 |
ret = qemu_devtree_setprop_string(fdt, "/chosen", "bootargs", |
76 |
kernel_cmdline); |
77 |
if (ret < 0) |
78 |
fprintf(stderr, "couldn't set /chosen/bootargs\n");
|
79 |
|
80 |
if (kvm_enabled())
|
81 |
kvmppc_fdt_update(fdt); |
82 |
|
83 |
ret = rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr); |
84 |
qemu_free(fdt); |
85 |
|
86 |
out:
|
87 |
#endif
|
88 |
|
89 |
return ret;
|
90 |
} |
91 |
|
92 |
static void bamboo_init(ram_addr_t ram_size, |
93 |
const char *boot_device, |
94 |
const char *kernel_filename, |
95 |
const char *kernel_cmdline, |
96 |
const char *initrd_filename, |
97 |
const char *cpu_model) |
98 |
{ |
99 |
unsigned int pci_irq_nrs[4] = { 28, 27, 26, 25 }; |
100 |
PCIBus *pcibus; |
101 |
CPUState *env; |
102 |
uint64_t elf_entry; |
103 |
uint64_t elf_lowaddr; |
104 |
target_phys_addr_t entry = 0;
|
105 |
target_phys_addr_t loadaddr = 0;
|
106 |
target_long initrd_size = 0;
|
107 |
int success;
|
108 |
int i;
|
109 |
|
110 |
/* Setup CPU. */
|
111 |
env = ppc440ep_init(&ram_size, &pcibus, pci_irq_nrs, 1, cpu_model);
|
112 |
|
113 |
if (pcibus) {
|
114 |
/* Register network interfaces. */
|
115 |
for (i = 0; i < nb_nics; i++) { |
116 |
/* There are no PCI NICs on the Bamboo board, but there are
|
117 |
* PCI slots, so we can pick whatever default model we want. */
|
118 |
pci_nic_init_nofail(&nd_table[i], "e1000", NULL); |
119 |
} |
120 |
} |
121 |
|
122 |
/* Load kernel. */
|
123 |
if (kernel_filename) {
|
124 |
success = load_uimage(kernel_filename, &entry, &loadaddr, NULL);
|
125 |
if (success < 0) { |
126 |
success = load_elf(kernel_filename, NULL, NULL, &elf_entry, |
127 |
&elf_lowaddr, NULL, 1, ELF_MACHINE, 0); |
128 |
entry = elf_entry; |
129 |
loadaddr = elf_lowaddr; |
130 |
} |
131 |
/* XXX try again as binary */
|
132 |
if (success < 0) { |
133 |
fprintf(stderr, "qemu: could not load kernel '%s'\n",
|
134 |
kernel_filename); |
135 |
exit(1);
|
136 |
} |
137 |
} |
138 |
|
139 |
/* Load initrd. */
|
140 |
if (initrd_filename) {
|
141 |
initrd_size = load_image_targphys(initrd_filename, RAMDISK_ADDR, |
142 |
ram_size - RAMDISK_ADDR); |
143 |
|
144 |
if (initrd_size < 0) { |
145 |
fprintf(stderr, "qemu: could not load ram disk '%s' at %x\n",
|
146 |
initrd_filename, RAMDISK_ADDR); |
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 (bamboo_load_device_tree(FDT_ADDR, ram_size, RAMDISK_ADDR,
|
154 |
initrd_size, kernel_cmdline) < 0) {
|
155 |
fprintf(stderr, "couldn't load device tree\n");
|
156 |
exit(1);
|
157 |
} |
158 |
|
159 |
cpu_synchronize_state(env); |
160 |
|
161 |
/* Set initial guest state. */
|
162 |
env->gpr[1] = (16<<20) - 8; |
163 |
env->gpr[3] = FDT_ADDR;
|
164 |
env->nip = entry; |
165 |
/* XXX we currently depend on KVM to create some initial TLB entries. */
|
166 |
} |
167 |
|
168 |
if (kvm_enabled())
|
169 |
kvmppc_init(); |
170 |
} |
171 |
|
172 |
static QEMUMachine bamboo_machine = {
|
173 |
.name = "bamboo-0.13",
|
174 |
.alias = "bamboo",
|
175 |
.desc = "bamboo",
|
176 |
.init = bamboo_init, |
177 |
}; |
178 |
|
179 |
static QEMUMachine bamboo_machine_v0_12 = {
|
180 |
.name = "bamboo-0.12",
|
181 |
.desc = "bamboo",
|
182 |
.init = bamboo_init, |
183 |
.compat_props = (GlobalProperty[]) { |
184 |
{ |
185 |
.driver = "virtio-serial-pci",
|
186 |
.property = "max_ports",
|
187 |
.value = stringify(1),
|
188 |
},{ |
189 |
.driver = "virtio-serial-pci",
|
190 |
.property = "vectors",
|
191 |
.value = stringify(0),
|
192 |
}, |
193 |
{ /* end of list */ }
|
194 |
}, |
195 |
}; |
196 |
|
197 |
static void bamboo_machine_init(void) |
198 |
{ |
199 |
qemu_register_machine(&bamboo_machine); |
200 |
qemu_register_machine(&bamboo_machine_v0_12); |
201 |
} |
202 |
|
203 |
machine_init(bamboo_machine_init); |