1
2
3
4
5
6
7
8
9
10
11
12
13
14#include "qemu/osdep.h"
15#include "qemu/units.h"
16#include "qemu/error-report.h"
17#include "qemu-common.h"
18#include "qemu/error-report.h"
19#include "net/net.h"
20#include "hw/hw.h"
21#include "hw/pci/pci.h"
22#include "hw/boards.h"
23#include "sysemu/kvm.h"
24#include "kvm_ppc.h"
25#include "sysemu/device_tree.h"
26#include "hw/loader.h"
27#include "elf.h"
28#include "exec/address-spaces.h"
29#include "hw/char/serial.h"
30#include "hw/ppc/ppc.h"
31#include "ppc405.h"
32#include "sysemu/sysemu.h"
33#include "sysemu/qtest.h"
34#include "hw/sysbus.h"
35
36#define BINARY_DEVICE_TREE_FILE "bamboo.dtb"
37
38
39#define KERNEL_ADDR 0x1000000
40#define FDT_ADDR 0x1800000
41#define RAMDISK_ADDR 0x1900000
42
43#define PPC440EP_PCI_CONFIG 0xeec00000
44#define PPC440EP_PCI_INTACK 0xeed00000
45#define PPC440EP_PCI_SPECIAL 0xeed00000
46#define PPC440EP_PCI_REGS 0xef400000
47#define PPC440EP_PCI_IO 0xe8000000
48#define PPC440EP_PCI_IOLEN 0x00010000
49
50#define PPC440EP_SDRAM_NR_BANKS 4
51
52static const unsigned int ppc440ep_sdram_bank_sizes[] = {
53 256 * MiB, 128 * MiB, 64 * MiB, 32 * MiB, 16 * MiB, 8 * MiB, 0
54};
55
56static hwaddr entry;
57
58static int bamboo_load_device_tree(hwaddr addr,
59 uint32_t ramsize,
60 hwaddr initrd_base,
61 hwaddr initrd_size,
62 const char *kernel_cmdline)
63{
64 int ret = -1;
65 uint32_t mem_reg_property[] = { 0, 0, cpu_to_be32(ramsize) };
66 char *filename;
67 int fdt_size;
68 void *fdt;
69 uint32_t tb_freq = 400000000;
70 uint32_t clock_freq = 400000000;
71
72 filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, BINARY_DEVICE_TREE_FILE);
73 if (!filename) {
74 goto out;
75 }
76 fdt = load_device_tree(filename, &fdt_size);
77 g_free(filename);
78 if (fdt == NULL) {
79 goto out;
80 }
81
82
83
84 ret = qemu_fdt_setprop(fdt, "/memory", "reg", mem_reg_property,
85 sizeof(mem_reg_property));
86 if (ret < 0)
87 fprintf(stderr, "couldn't set /memory/reg\n");
88
89 ret = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-start",
90 initrd_base);
91 if (ret < 0)
92 fprintf(stderr, "couldn't set /chosen/linux,initrd-start\n");
93
94 ret = qemu_fdt_setprop_cell(fdt, "/chosen", "linux,initrd-end",
95 (initrd_base + initrd_size));
96 if (ret < 0)
97 fprintf(stderr, "couldn't set /chosen/linux,initrd-end\n");
98
99 ret = qemu_fdt_setprop_string(fdt, "/chosen", "bootargs",
100 kernel_cmdline);
101 if (ret < 0)
102 fprintf(stderr, "couldn't set /chosen/bootargs\n");
103
104
105
106
107 if (kvm_enabled()) {
108 tb_freq = kvmppc_get_tbfreq();
109 clock_freq = kvmppc_get_clockfreq();
110 }
111
112 qemu_fdt_setprop_cell(fdt, "/cpus/cpu@0", "clock-frequency",
113 clock_freq);
114 qemu_fdt_setprop_cell(fdt, "/cpus/cpu@0", "timebase-frequency",
115 tb_freq);
116
117 rom_add_blob_fixed(BINARY_DEVICE_TREE_FILE, fdt, fdt_size, addr);
118 g_free(fdt);
119 return 0;
120
121out:
122
123 return ret;
124}
125
126
127static void mmubooke_create_initial_mapping(CPUPPCState *env,
128 target_ulong va,
129 hwaddr pa)
130{
131 ppcemb_tlb_t *tlb = &env->tlb.tlbe[0];
132
133 tlb->attr = 0;
134 tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4);
135 tlb->size = 1U << 31;
136 tlb->EPN = va & TARGET_PAGE_MASK;
137 tlb->RPN = pa & TARGET_PAGE_MASK;
138 tlb->PID = 0;
139
140 tlb = &env->tlb.tlbe[1];
141 tlb->attr = 0;
142 tlb->prot = PAGE_VALID | ((PAGE_READ | PAGE_WRITE | PAGE_EXEC) << 4);
143 tlb->size = 1U << 31;
144 tlb->EPN = 0x80000000 & TARGET_PAGE_MASK;
145 tlb->RPN = 0x80000000 & TARGET_PAGE_MASK;
146 tlb->PID = 0;
147}
148
149static void main_cpu_reset(void *opaque)
150{
151 PowerPCCPU *cpu = opaque;
152 CPUPPCState *env = &cpu->env;
153
154 cpu_reset(CPU(cpu));
155 env->gpr[1] = (16 * MiB) - 8;
156 env->gpr[3] = FDT_ADDR;
157 env->nip = entry;
158
159
160 mmubooke_create_initial_mapping(env, 0, 0);
161}
162
163static void bamboo_init(MachineState *machine)
164{
165 ram_addr_t ram_size = machine->ram_size;
166 const char *kernel_filename = machine->kernel_filename;
167 const char *kernel_cmdline = machine->kernel_cmdline;
168 const char *initrd_filename = machine->initrd_filename;
169 unsigned int pci_irq_nrs[4] = { 28, 27, 26, 25 };
170 MemoryRegion *address_space_mem = get_system_memory();
171 MemoryRegion *isa = g_new(MemoryRegion, 1);
172 MemoryRegion *ram_memories
173 = g_malloc(PPC440EP_SDRAM_NR_BANKS * sizeof(*ram_memories));
174 hwaddr ram_bases[PPC440EP_SDRAM_NR_BANKS];
175 hwaddr ram_sizes[PPC440EP_SDRAM_NR_BANKS];
176 qemu_irq *pic;
177 qemu_irq *irqs;
178 PCIBus *pcibus;
179 PowerPCCPU *cpu;
180 CPUPPCState *env;
181 uint64_t elf_entry;
182 uint64_t elf_lowaddr;
183 hwaddr loadaddr = 0;
184 target_long initrd_size = 0;
185 DeviceState *dev;
186 int success;
187 int i;
188
189 cpu = POWERPC_CPU(cpu_create(machine->cpu_type));
190 env = &cpu->env;
191
192 if (env->mmu_model != POWERPC_MMU_BOOKE) {
193 error_report("MMU model %i not supported by this machine",
194 env->mmu_model);
195 exit(1);
196 }
197
198#ifdef TARGET_PPCEMB
199 if (!qtest_enabled()) {
200 warn_report("qemu-system-ppcemb is deprecated, "
201 "please use qemu-system-ppc instead.");
202 }
203#endif
204
205 qemu_register_reset(main_cpu_reset, cpu);
206 ppc_booke_timers_init(cpu, 400000000, 0);
207 ppc_dcr_init(env, NULL, NULL);
208
209
210 irqs = g_malloc0(sizeof(qemu_irq) * PPCUIC_OUTPUT_NB);
211 irqs[PPCUIC_OUTPUT_INT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_INT];
212 irqs[PPCUIC_OUTPUT_CINT] = ((qemu_irq *)env->irq_inputs)[PPC40x_INPUT_CINT];
213 pic = ppcuic_init(env, irqs, 0x0C0, 0, 1);
214
215
216 memset(ram_bases, 0, sizeof(ram_bases));
217 memset(ram_sizes, 0, sizeof(ram_sizes));
218 ram_size = ppc4xx_sdram_adjust(ram_size, PPC440EP_SDRAM_NR_BANKS,
219 ram_memories,
220 ram_bases, ram_sizes,
221 ppc440ep_sdram_bank_sizes);
222
223 ppc4xx_sdram_init(env, pic[14], PPC440EP_SDRAM_NR_BANKS, ram_memories,
224 ram_bases, ram_sizes, 1);
225
226
227 dev = sysbus_create_varargs(TYPE_PPC4xx_PCI_HOST_BRIDGE,
228 PPC440EP_PCI_CONFIG,
229 pic[pci_irq_nrs[0]], pic[pci_irq_nrs[1]],
230 pic[pci_irq_nrs[2]], pic[pci_irq_nrs[3]],
231 NULL);
232 pcibus = (PCIBus *)qdev_get_child_bus(dev, "pci.0");
233 if (!pcibus) {
234 error_report("couldn't create PCI controller");
235 exit(1);
236 }
237
238 memory_region_init_alias(isa, NULL, "isa_mmio",
239 get_system_io(), 0, PPC440EP_PCI_IOLEN);
240 memory_region_add_subregion(get_system_memory(), PPC440EP_PCI_IO, isa);
241
242 if (serial_hd(0) != NULL) {
243 serial_mm_init(address_space_mem, 0xef600300, 0, pic[0],
244 PPC_SERIAL_MM_BAUDBASE, serial_hd(0),
245 DEVICE_BIG_ENDIAN);
246 }
247 if (serial_hd(1) != NULL) {
248 serial_mm_init(address_space_mem, 0xef600400, 0, pic[1],
249 PPC_SERIAL_MM_BAUDBASE, serial_hd(1),
250 DEVICE_BIG_ENDIAN);
251 }
252
253 if (pcibus) {
254
255 for (i = 0; i < nb_nics; i++) {
256
257
258 pci_nic_init_nofail(&nd_table[i], pcibus, "e1000", NULL);
259 }
260 }
261
262
263 if (kernel_filename) {
264 success = load_uimage(kernel_filename, &entry, &loadaddr, NULL,
265 NULL, NULL);
266 if (success < 0) {
267 success = load_elf(kernel_filename, NULL, NULL, &elf_entry,
268 &elf_lowaddr, NULL, 1, PPC_ELF_MACHINE,
269 0, 0);
270 entry = elf_entry;
271 loadaddr = elf_lowaddr;
272 }
273
274 if (success < 0) {
275 error_report("could not load kernel '%s'", kernel_filename);
276 exit(1);
277 }
278 }
279
280
281 if (initrd_filename) {
282 initrd_size = load_image_targphys(initrd_filename, RAMDISK_ADDR,
283 ram_size - RAMDISK_ADDR);
284
285 if (initrd_size < 0) {
286 error_report("could not load ram disk '%s' at %x",
287 initrd_filename, RAMDISK_ADDR);
288 exit(1);
289 }
290 }
291
292
293 if (kernel_filename) {
294 if (bamboo_load_device_tree(FDT_ADDR, ram_size, RAMDISK_ADDR,
295 initrd_size, kernel_cmdline) < 0) {
296 error_report("couldn't load device tree");
297 exit(1);
298 }
299 }
300}
301
302static void bamboo_machine_init(MachineClass *mc)
303{
304 mc->desc = "bamboo";
305 mc->init = bamboo_init;
306 mc->default_cpu_type = POWERPC_CPU_TYPE_NAME("440epb");
307}
308
309DEFINE_MACHINE("bamboo", bamboo_machine_init)
310
