2 * Renesas SH7751R R2D-PLUS emulation
4 * Copyright (c) 2007 Magnus Damm
5 * Copyright (c) 2008 Paul Mundt
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
34 #include "sh7750_regs.h"
40 #include "exec-memory.h"
42 #define FLASH_BASE 0x00000000
43 #define FLASH_SIZE 0x02000000
45 #define SDRAM_BASE 0x0c000000 /* Physical location of SDRAM: Area 3 */
46 #define SDRAM_SIZE 0x04000000
48 #define SM501_VRAM_SIZE 0x800000
50 #define BOOT_PARAMS_OFFSET 0x0010000
51 /* CONFIG_BOOT_LINK_OFFSET of Linux kernel */
52 #define LINUX_LOAD_OFFSET 0x0800000
53 #define INITRD_LOAD_OFFSET 0x1800000
55 #define PA_IRLMSK 0x00
56 #define PA_POWOFF 0x30
57 #define PA_VERREG 0x32
58 #define PA_OUTPORT 0x36
89 PCI_INTD, CF_IDE, CF_CD, PCI_INTC, SM501, KEY, RTC_A, RTC_T,
90 SDCARD, PCI_INTA, PCI_INTB, EXT, TP,
94 static const struct { short irl; uint16_t msk; } irqtab[NR_IRQS] = {
95 [CF_IDE] = { 1, 1<<9 },
96 [CF_CD] = { 2, 1<<8 },
97 [PCI_INTA] = { 9, 1<<14 },
98 [PCI_INTB] = { 10, 1<<13 },
99 [PCI_INTC] = { 3, 1<<12 },
100 [PCI_INTD] = { 0, 1<<11 },
101 [SM501] = { 4, 1<<10 },
103 [RTC_A] = { 6, 1<<5 },
104 [RTC_T] = { 7, 1<<4 },
105 [SDCARD] = { 8, 1<<7 },
106 [EXT] = { 11, 1<<0 },
107 [TP] = { 12, 1<<15 },
110 static void update_irl(r2d_fpga_t *fpga)
113 for (i = 0; i < NR_IRQS; i++)
114 if (fpga->irlmon & fpga->irlmsk & irqtab[i].msk)
115 if (irqtab[i].irl < irl)
117 qemu_set_irq(fpga->irl, irl ^ 15);
120 static void r2d_fpga_irq_set(void *opaque, int n, int level)
122 r2d_fpga_t *fpga = opaque;
124 fpga->irlmon |= irqtab[n].msk;
126 fpga->irlmon &= ~irqtab[n].msk;
130 static uint32_t r2d_fpga_read(void *opaque, target_phys_addr_t addr)
132 r2d_fpga_t *s = opaque;
149 r2d_fpga_write(void *opaque, target_phys_addr_t addr, uint32_t value)
151 r2d_fpga_t *s = opaque;
163 qemu_system_shutdown_request();
172 static const MemoryRegionOps r2d_fpga_ops = {
174 .read = { r2d_fpga_read, r2d_fpga_read, NULL, },
175 .write = { r2d_fpga_write, r2d_fpga_write, NULL, },
177 .endianness = DEVICE_NATIVE_ENDIAN,
180 static qemu_irq *r2d_fpga_init(MemoryRegion *sysmem,
181 target_phys_addr_t base, qemu_irq irl)
185 s = g_malloc0(sizeof(r2d_fpga_t));
189 memory_region_init_io(&s->iomem, &r2d_fpga_ops, s, "r2d-fpga", 0x40);
190 memory_region_add_subregion(sysmem, base, &s->iomem);
191 return qemu_allocate_irqs(r2d_fpga_irq_set, s, NR_IRQS);
194 typedef struct ResetData {
199 static void main_cpu_reset(void *opaque)
201 ResetData *s = (ResetData *)opaque;
202 CPUState *env = s->env;
208 static struct QEMU_PACKED
210 int mount_root_rdonly;
219 char kernel_cmdline[256];
222 static void r2d_init(ram_addr_t ram_size,
223 const char *boot_device,
224 const char *kernel_filename, const char *kernel_cmdline,
225 const char *initrd_filename, const char *cpu_model)
228 ResetData *reset_info;
229 struct SH7750State *s;
230 MemoryRegion *sdram = g_new(MemoryRegion, 1);
234 MemoryRegion *address_space_mem = get_system_memory();
237 cpu_model = "SH7751R";
239 env = cpu_init(cpu_model);
241 fprintf(stderr, "Unable to find CPU definition\n");
244 reset_info = g_malloc0(sizeof(ResetData));
245 reset_info->env = env;
246 reset_info->vector = env->pc;
247 qemu_register_reset(main_cpu_reset, reset_info);
249 /* Allocate memory space */
250 memory_region_init_ram(sdram, NULL, "r2d.sdram", SDRAM_SIZE);
251 memory_region_add_subregion(address_space_mem, SDRAM_BASE, sdram);
252 /* Register peripherals */
253 s = sh7750_init(env);
254 irq = r2d_fpga_init(address_space_mem, 0x04000000, sh7750_irl(s));
255 sysbus_create_varargs("sh_pci", 0x1e200000, irq[PCI_INTA], irq[PCI_INTB],
256 irq[PCI_INTC], irq[PCI_INTD], NULL);
258 sm501_init(address_space_mem, 0x10000000, SM501_VRAM_SIZE,
259 irq[SM501], serial_hds[2]);
261 /* onboard CF (True IDE mode, Master only). */
262 dinfo = drive_get(IF_IDE, 0, 0);
263 mmio_ide_init(0x14001000, 0x1400080c, irq[CF_IDE], 1,
266 /* onboard flash memory */
267 dinfo = drive_get(IF_PFLASH, 0, 0);
268 pflash_cfi02_register(0x0, NULL, "r2d.flash", FLASH_SIZE,
269 dinfo ? dinfo->bdrv : NULL, (16 * 1024),
271 1, 4, 0x0000, 0x0000, 0x0000, 0x0000,
274 /* NIC: rtl8139 on-board, and 2 slots. */
275 for (i = 0; i < nb_nics; i++)
276 pci_nic_init_nofail(&nd_table[i], "rtl8139", i==0 ? "2" : NULL);
279 usbdevice_create("keyboard");
281 /* Todo: register on board registers */
282 memset(&boot_params, 0, sizeof(boot_params));
284 if (kernel_filename) {
287 kernel_size = load_image_targphys(kernel_filename,
288 SDRAM_BASE + LINUX_LOAD_OFFSET,
289 INITRD_LOAD_OFFSET - LINUX_LOAD_OFFSET);
290 if (kernel_size < 0) {
291 fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename);
295 /* initialization which should be done by firmware */
296 stl_phys(SH7750_BCR1, 1<<3); /* cs3 SDRAM */
297 stw_phys(SH7750_BCR2, 3<<(3*2)); /* cs3 32bit */
298 reset_info->vector = (SDRAM_BASE + LINUX_LOAD_OFFSET) | 0xa0000000; /* Start from P2 area */
301 if (initrd_filename) {
304 initrd_size = load_image_targphys(initrd_filename,
305 SDRAM_BASE + INITRD_LOAD_OFFSET,
306 SDRAM_SIZE - INITRD_LOAD_OFFSET);
308 if (initrd_size < 0) {
309 fprintf(stderr, "qemu: could not load initrd '%s'\n", initrd_filename);
313 /* initialization which should be done by firmware */
314 boot_params.loader_type = 1;
315 boot_params.initrd_start = INITRD_LOAD_OFFSET;
316 boot_params.initrd_size = initrd_size;
319 if (kernel_cmdline) {
320 strncpy(boot_params.kernel_cmdline, kernel_cmdline,
321 sizeof(boot_params.kernel_cmdline));
324 rom_add_blob_fixed("boot_params", &boot_params, sizeof(boot_params),
325 SDRAM_BASE + BOOT_PARAMS_OFFSET);
328 static QEMUMachine r2d_machine = {
330 .desc = "r2d-plus board",
334 static void r2d_machine_init(void)
336 qemu_register_machine(&r2d_machine);
339 machine_init(r2d_machine_init);