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26#include "qemu/osdep.h"
27#include "qapi/error.h"
28#include "qemu-common.h"
29#include "cpu.h"
30#include "hw/sysbus.h"
31#include "hw/hw.h"
32#include "hw/sh4/sh.h"
33#include "hw/devices.h"
34#include "sysemu/sysemu.h"
35#include "hw/boards.h"
36#include "hw/pci/pci.h"
37#include "net/net.h"
38#include "sh7750_regs.h"
39#include "hw/ide.h"
40#include "hw/loader.h"
41#include "hw/usb.h"
42#include "hw/block/flash.h"
43#include "sysemu/block-backend.h"
44#include "exec/address-spaces.h"
45
46#define FLASH_BASE 0x00000000
47#define FLASH_SIZE 0x02000000
48
49#define SDRAM_BASE 0x0c000000
50#define SDRAM_SIZE 0x04000000
51
52#define SM501_VRAM_SIZE 0x800000
53
54#define BOOT_PARAMS_OFFSET 0x0010000
55
56#define LINUX_LOAD_OFFSET 0x0800000
57#define INITRD_LOAD_OFFSET 0x1800000
58
59#define PA_IRLMSK 0x00
60#define PA_POWOFF 0x30
61#define PA_VERREG 0x32
62#define PA_OUTPORT 0x36
63
64typedef struct {
65 uint16_t bcr;
66 uint16_t irlmsk;
67 uint16_t irlmon;
68 uint16_t cfctl;
69 uint16_t cfpow;
70 uint16_t dispctl;
71 uint16_t sdmpow;
72 uint16_t rtcce;
73 uint16_t pcicd;
74 uint16_t voyagerrts;
75 uint16_t cfrst;
76 uint16_t admrts;
77 uint16_t extrst;
78 uint16_t cfcdintclr;
79 uint16_t keyctlclr;
80 uint16_t pad0;
81 uint16_t pad1;
82 uint16_t verreg;
83 uint16_t inport;
84 uint16_t outport;
85 uint16_t bverreg;
86
87
88 qemu_irq irl;
89 MemoryRegion iomem;
90} r2d_fpga_t;
91
92enum r2d_fpga_irq {
93 PCI_INTD, CF_IDE, CF_CD, PCI_INTC, SM501, KEY, RTC_A, RTC_T,
94 SDCARD, PCI_INTA, PCI_INTB, EXT, TP,
95 NR_IRQS
96};
97
98static const struct { short irl; uint16_t msk; } irqtab[NR_IRQS] = {
99 [CF_IDE] = { 1, 1<<9 },
100 [CF_CD] = { 2, 1<<8 },
101 [PCI_INTA] = { 9, 1<<14 },
102 [PCI_INTB] = { 10, 1<<13 },
103 [PCI_INTC] = { 3, 1<<12 },
104 [PCI_INTD] = { 0, 1<<11 },
105 [SM501] = { 4, 1<<10 },
106 [KEY] = { 5, 1<<6 },
107 [RTC_A] = { 6, 1<<5 },
108 [RTC_T] = { 7, 1<<4 },
109 [SDCARD] = { 8, 1<<7 },
110 [EXT] = { 11, 1<<0 },
111 [TP] = { 12, 1<<15 },
112};
113
114static void update_irl(r2d_fpga_t *fpga)
115{
116 int i, irl = 15;
117 for (i = 0; i < NR_IRQS; i++)
118 if (fpga->irlmon & fpga->irlmsk & irqtab[i].msk)
119 if (irqtab[i].irl < irl)
120 irl = irqtab[i].irl;
121 qemu_set_irq(fpga->irl, irl ^ 15);
122}
123
124static void r2d_fpga_irq_set(void *opaque, int n, int level)
125{
126 r2d_fpga_t *fpga = opaque;
127 if (level)
128 fpga->irlmon |= irqtab[n].msk;
129 else
130 fpga->irlmon &= ~irqtab[n].msk;
131 update_irl(fpga);
132}
133
134static uint64_t r2d_fpga_read(void *opaque, hwaddr addr, unsigned int size)
135{
136 r2d_fpga_t *s = opaque;
137
138 switch (addr) {
139 case PA_IRLMSK:
140 return s->irlmsk;
141 case PA_OUTPORT:
142 return s->outport;
143 case PA_POWOFF:
144 return 0x00;
145 case PA_VERREG:
146 return 0x10;
147 }
148
149 return 0;
150}
151
152static void
153r2d_fpga_write(void *opaque, hwaddr addr, uint64_t value, unsigned int size)
154{
155 r2d_fpga_t *s = opaque;
156
157 switch (addr) {
158 case PA_IRLMSK:
159 s->irlmsk = value;
160 update_irl(s);
161 break;
162 case PA_OUTPORT:
163 s->outport = value;
164 break;
165 case PA_POWOFF:
166 if (value & 1) {
167 qemu_system_shutdown_request();
168 }
169 break;
170 case PA_VERREG:
171
172 break;
173 }
174}
175
176static const MemoryRegionOps r2d_fpga_ops = {
177 .read = r2d_fpga_read,
178 .write = r2d_fpga_write,
179 .impl.min_access_size = 2,
180 .impl.max_access_size = 2,
181 .endianness = DEVICE_NATIVE_ENDIAN,
182};
183
184static qemu_irq *r2d_fpga_init(MemoryRegion *sysmem,
185 hwaddr base, qemu_irq irl)
186{
187 r2d_fpga_t *s;
188
189 s = g_malloc0(sizeof(r2d_fpga_t));
190
191 s->irl = irl;
192
193 memory_region_init_io(&s->iomem, NULL, &r2d_fpga_ops, s, "r2d-fpga", 0x40);
194 memory_region_add_subregion(sysmem, base, &s->iomem);
195 return qemu_allocate_irqs(r2d_fpga_irq_set, s, NR_IRQS);
196}
197
198typedef struct ResetData {
199 SuperHCPU *cpu;
200 uint32_t vector;
201} ResetData;
202
203static void main_cpu_reset(void *opaque)
204{
205 ResetData *s = (ResetData *)opaque;
206 CPUSH4State *env = &s->cpu->env;
207
208 cpu_reset(CPU(s->cpu));
209 env->pc = s->vector;
210}
211
212static struct QEMU_PACKED
213{
214 int mount_root_rdonly;
215 int ramdisk_flags;
216 int orig_root_dev;
217 int loader_type;
218 int initrd_start;
219 int initrd_size;
220
221 char pad[232];
222
223 char kernel_cmdline[256];
224} boot_params;
225
226static void r2d_init(MachineState *machine)
227{
228 const char *cpu_model = machine->cpu_model;
229 const char *kernel_filename = machine->kernel_filename;
230 const char *kernel_cmdline = machine->kernel_cmdline;
231 const char *initrd_filename = machine->initrd_filename;
232 SuperHCPU *cpu;
233 CPUSH4State *env;
234 ResetData *reset_info;
235 struct SH7750State *s;
236 MemoryRegion *sdram = g_new(MemoryRegion, 1);
237 qemu_irq *irq;
238 DriveInfo *dinfo;
239 int i;
240 DeviceState *dev;
241 SysBusDevice *busdev;
242 MemoryRegion *address_space_mem = get_system_memory();
243 PCIBus *pci_bus;
244
245 if (cpu_model == NULL) {
246 cpu_model = "SH7751R";
247 }
248
249 cpu = cpu_sh4_init(cpu_model);
250 if (cpu == NULL) {
251 fprintf(stderr, "Unable to find CPU definition\n");
252 exit(1);
253 }
254 env = &cpu->env;
255
256 reset_info = g_malloc0(sizeof(ResetData));
257 reset_info->cpu = cpu;
258 reset_info->vector = env->pc;
259 qemu_register_reset(main_cpu_reset, reset_info);
260
261
262 memory_region_init_ram(sdram, NULL, "r2d.sdram", SDRAM_SIZE, &error_fatal);
263 vmstate_register_ram_global(sdram);
264 memory_region_add_subregion(address_space_mem, SDRAM_BASE, sdram);
265
266 s = sh7750_init(cpu, address_space_mem);
267 irq = r2d_fpga_init(address_space_mem, 0x04000000, sh7750_irl(s));
268
269 dev = qdev_create(NULL, "sh_pci");
270 busdev = SYS_BUS_DEVICE(dev);
271 qdev_init_nofail(dev);
272 pci_bus = PCI_BUS(qdev_get_child_bus(dev, "pci"));
273 sysbus_mmio_map(busdev, 0, P4ADDR(0x1e200000));
274 sysbus_mmio_map(busdev, 1, A7ADDR(0x1e200000));
275 sysbus_connect_irq(busdev, 0, irq[PCI_INTA]);
276 sysbus_connect_irq(busdev, 1, irq[PCI_INTB]);
277 sysbus_connect_irq(busdev, 2, irq[PCI_INTC]);
278 sysbus_connect_irq(busdev, 3, irq[PCI_INTD]);
279
280 sm501_init(address_space_mem, 0x10000000, SM501_VRAM_SIZE,
281 irq[SM501], serial_hds[2]);
282
283
284 dinfo = drive_get(IF_IDE, 0, 0);
285 dev = qdev_create(NULL, "mmio-ide");
286 busdev = SYS_BUS_DEVICE(dev);
287 sysbus_connect_irq(busdev, 0, irq[CF_IDE]);
288 qdev_prop_set_uint32(dev, "shift", 1);
289 qdev_init_nofail(dev);
290 sysbus_mmio_map(busdev, 0, 0x14001000);
291 sysbus_mmio_map(busdev, 1, 0x1400080c);
292 mmio_ide_init_drives(dev, dinfo, NULL);
293
294
295 dinfo = drive_get(IF_PFLASH, 0, 0);
296 pflash_cfi02_register(0x0, NULL, "r2d.flash", FLASH_SIZE,
297 dinfo ? blk_by_legacy_dinfo(dinfo) : NULL,
298 (16 * 1024), FLASH_SIZE >> 16,
299 1, 4, 0x0000, 0x0000, 0x0000, 0x0000,
300 0x555, 0x2aa, 0);
301
302
303 for (i = 0; i < nb_nics; i++)
304 pci_nic_init_nofail(&nd_table[i], pci_bus,
305 "rtl8139", i==0 ? "2" : NULL);
306
307
308 usb_create_simple(usb_bus_find(-1), "usb-kbd");
309
310
311 memset(&boot_params, 0, sizeof(boot_params));
312
313 if (kernel_filename) {
314 int kernel_size;
315
316 kernel_size = load_image_targphys(kernel_filename,
317 SDRAM_BASE + LINUX_LOAD_OFFSET,
318 INITRD_LOAD_OFFSET - LINUX_LOAD_OFFSET);
319 if (kernel_size < 0) {
320 fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename);
321 exit(1);
322 }
323
324
325 address_space_stl(&address_space_memory, SH7750_BCR1, 1 << 3,
326 MEMTXATTRS_UNSPECIFIED, NULL);
327 address_space_stw(&address_space_memory, SH7750_BCR2, 3 << (3 * 2),
328 MEMTXATTRS_UNSPECIFIED, NULL);
329 reset_info->vector = (SDRAM_BASE + LINUX_LOAD_OFFSET) | 0xa0000000;
330 }
331
332 if (initrd_filename) {
333 int initrd_size;
334
335 initrd_size = load_image_targphys(initrd_filename,
336 SDRAM_BASE + INITRD_LOAD_OFFSET,
337 SDRAM_SIZE - INITRD_LOAD_OFFSET);
338
339 if (initrd_size < 0) {
340 fprintf(stderr, "qemu: could not load initrd '%s'\n", initrd_filename);
341 exit(1);
342 }
343
344
345 boot_params.loader_type = tswap32(1);
346 boot_params.initrd_start = tswap32(INITRD_LOAD_OFFSET);
347 boot_params.initrd_size = tswap32(initrd_size);
348 }
349
350 if (kernel_cmdline) {
351
352
353 strncpy(boot_params.kernel_cmdline, kernel_cmdline,
354 sizeof(boot_params.kernel_cmdline));
355 }
356
357 rom_add_blob_fixed("boot_params", &boot_params, sizeof(boot_params),
358 SDRAM_BASE + BOOT_PARAMS_OFFSET);
359}
360
361static void r2d_machine_init(MachineClass *mc)
362{
363 mc->desc = "r2d-plus board";
364 mc->init = r2d_init;
365}
366
367DEFINE_MACHINE("r2d", r2d_machine_init)
368
