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
32 #define SDRAM_BASE 0x0c000000 /* Physical location of SDRAM: Area 3 */
33 #define SDRAM_SIZE 0x04000000
35 #define SM501_VRAM_SIZE 0x800000
37 #define PA_IRLMSK 0x00
38 #define PA_POWOFF 0x30
39 #define PA_VERREG 0x32
40 #define PA_OUTPORT 0x36
71 PCI_INTD, CF_IDE, CF_CD, PCI_INTC, SM501, KEY, RTC_A, RTC_T,
72 SDCARD, PCI_INTA, PCI_INTB, EXT, TP,
76 static const struct { short irl; uint16_t msk; } irqtab[NR_IRQS] = {
77 [CF_IDE] = { 1, 1<<9 },
78 [CF_CD] = { 2, 1<<8 },
79 [PCI_INTA] = { 9, 1<<14 },
80 [PCI_INTB] = { 10, 1<<13 },
81 [PCI_INTC] = { 3, 1<<12 },
82 [PCI_INTD] = { 0, 1<<11 },
83 [SM501] = { 4, 1<<10 },
85 [RTC_A] = { 6, 1<<5 },
86 [RTC_T] = { 7, 1<<4 },
87 [SDCARD] = { 8, 1<<7 },
92 static void update_irl(r2d_fpga_t *fpga)
95 for (i = 0; i < NR_IRQS; i++)
96 if (fpga->irlmon & fpga->irlmsk & irqtab[i].msk)
97 if (irqtab[i].irl < irl)
99 qemu_set_irq(fpga->irl, irl ^ 15);
102 static void r2d_fpga_irq_set(void *opaque, int n, int level)
104 r2d_fpga_t *fpga = opaque;
106 fpga->irlmon |= irqtab[n].msk;
108 fpga->irlmon &= ~irqtab[n].msk;
112 static uint32_t r2d_fpga_read(void *opaque, target_phys_addr_t addr)
114 r2d_fpga_t *s = opaque;
131 r2d_fpga_write(void *opaque, target_phys_addr_t addr, uint32_t value)
133 r2d_fpga_t *s = opaque;
152 static CPUReadMemoryFunc *r2d_fpga_readfn[] = {
158 static CPUWriteMemoryFunc *r2d_fpga_writefn[] = {
164 static qemu_irq *r2d_fpga_init(target_phys_addr_t base, qemu_irq irl)
169 s = qemu_mallocz(sizeof(r2d_fpga_t));
175 iomemtype = cpu_register_io_memory(0, r2d_fpga_readfn,
176 r2d_fpga_writefn, s);
177 cpu_register_physical_memory(base, 0x40, iomemtype);
178 return qemu_allocate_irqs(r2d_fpga_irq_set, s, NR_IRQS);
181 static void r2d_init(ram_addr_t ram_size, int vga_ram_size,
182 const char *boot_device, DisplayState * ds,
183 const char *kernel_filename, const char *kernel_cmdline,
184 const char *initrd_filename, const char *cpu_model)
187 struct SH7750State *s;
188 ram_addr_t sdram_addr, sm501_vga_ram_addr;
192 cpu_model = "SH7751R";
194 env = cpu_init(cpu_model);
196 fprintf(stderr, "Unable to find CPU definition\n");
200 /* Allocate memory space */
201 sdram_addr = qemu_ram_alloc(SDRAM_SIZE);
202 cpu_register_physical_memory(SDRAM_BASE, SDRAM_SIZE, sdram_addr);
203 /* Register peripherals */
204 s = sh7750_init(env);
205 irq = r2d_fpga_init(0x04000000, sh7750_irl(s));
207 sm501_vga_ram_addr = qemu_ram_alloc(SM501_VRAM_SIZE);
208 sm501_init(ds, 0x10000000, sm501_vga_ram_addr, SM501_VRAM_SIZE,
211 /* onboard CF (True IDE mode, Master only). */
212 mmio_ide_init(0x14001000, 0x1400080c, irq[CF_IDE], 1,
213 drives_table[drive_get_index(IF_IDE, 0, 0)].bdrv, NULL);
215 /* Todo: register on board registers */
219 kernel_size = load_image(kernel_filename, phys_ram_base);
221 if (kernel_size < 0) {
222 fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename);
226 env->pc = SDRAM_BASE | 0xa0000000; /* Start from P2 area */
230 QEMUMachine r2d_machine = {
232 .desc = "r2d-plus board",
234 .ram_require = (SDRAM_SIZE + SM501_VRAM_SIZE) | RAMSIZE_FIXED,