* Renesas SH7751R R2D-PLUS emulation
*
* Copyright (c) 2007 Magnus Damm
+ * Copyright (c) 2008 Paul Mundt
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* THE SOFTWARE.
*/
-#include "vl.h"
+#include "hw.h"
+#include "sh.h"
+#include "devices.h"
+#include "sysemu.h"
+#include "boards.h"
+#include "pci.h"
+#include "net.h"
+#include "sh7750_regs.h"
#define SDRAM_BASE 0x0c000000 /* Physical location of SDRAM: Area 3 */
#define SDRAM_SIZE 0x04000000
-static void r2d_init(int ram_size, int vga_ram_size, const char *boot_device,
- DisplayState * ds, const char **fd_filename, int snapshot,
+#define SM501_VRAM_SIZE 0x800000
+
+/* CONFIG_BOOT_LINK_OFFSET of Linux kernel */
+#define LINUX_LOAD_OFFSET 0x800000
+
+#define PA_IRLMSK 0x00
+#define PA_POWOFF 0x30
+#define PA_VERREG 0x32
+#define PA_OUTPORT 0x36
+
+typedef struct {
+ uint16_t bcr;
+ uint16_t irlmsk;
+ uint16_t irlmon;
+ uint16_t cfctl;
+ uint16_t cfpow;
+ uint16_t dispctl;
+ uint16_t sdmpow;
+ uint16_t rtcce;
+ uint16_t pcicd;
+ uint16_t voyagerrts;
+ uint16_t cfrst;
+ uint16_t admrts;
+ uint16_t extrst;
+ uint16_t cfcdintclr;
+ uint16_t keyctlclr;
+ uint16_t pad0;
+ uint16_t pad1;
+ uint16_t powoff;
+ uint16_t verreg;
+ uint16_t inport;
+ uint16_t outport;
+ uint16_t bverreg;
+
+/* output pin */
+ qemu_irq irl;
+} r2d_fpga_t;
+
+enum r2d_fpga_irq {
+ PCI_INTD, CF_IDE, CF_CD, PCI_INTC, SM501, KEY, RTC_A, RTC_T,
+ SDCARD, PCI_INTA, PCI_INTB, EXT, TP,
+ NR_IRQS
+};
+
+static const struct { short irl; uint16_t msk; } irqtab[NR_IRQS] = {
+ [CF_IDE] = { 1, 1<<9 },
+ [CF_CD] = { 2, 1<<8 },
+ [PCI_INTA] = { 9, 1<<14 },
+ [PCI_INTB] = { 10, 1<<13 },
+ [PCI_INTC] = { 3, 1<<12 },
+ [PCI_INTD] = { 0, 1<<11 },
+ [SM501] = { 4, 1<<10 },
+ [KEY] = { 5, 1<<6 },
+ [RTC_A] = { 6, 1<<5 },
+ [RTC_T] = { 7, 1<<4 },
+ [SDCARD] = { 8, 1<<7 },
+ [EXT] = { 11, 1<<0 },
+ [TP] = { 12, 1<<15 },
+};
+
+static void update_irl(r2d_fpga_t *fpga)
+{
+ int i, irl = 15;
+ for (i = 0; i < NR_IRQS; i++)
+ if (fpga->irlmon & fpga->irlmsk & irqtab[i].msk)
+ if (irqtab[i].irl < irl)
+ irl = irqtab[i].irl;
+ qemu_set_irq(fpga->irl, irl ^ 15);
+}
+
+static void r2d_fpga_irq_set(void *opaque, int n, int level)
+{
+ r2d_fpga_t *fpga = opaque;
+ if (level)
+ fpga->irlmon |= irqtab[n].msk;
+ else
+ fpga->irlmon &= ~irqtab[n].msk;
+ update_irl(fpga);
+}
+
+static uint32_t r2d_fpga_read(void *opaque, target_phys_addr_t addr)
+{
+ r2d_fpga_t *s = opaque;
+
+ switch (addr) {
+ case PA_IRLMSK:
+ return s->irlmsk;
+ case PA_OUTPORT:
+ return s->outport;
+ case PA_POWOFF:
+ return s->powoff;
+ case PA_VERREG:
+ return 0x10;
+ }
+
+ return 0;
+}
+
+static void
+r2d_fpga_write(void *opaque, target_phys_addr_t addr, uint32_t value)
+{
+ r2d_fpga_t *s = opaque;
+
+ switch (addr) {
+ case PA_IRLMSK:
+ s->irlmsk = value;
+ update_irl(s);
+ break;
+ case PA_OUTPORT:
+ s->outport = value;
+ break;
+ case PA_POWOFF:
+ s->powoff = value;
+ break;
+ case PA_VERREG:
+ /* Discard writes */
+ break;
+ }
+}
+
+static CPUReadMemoryFunc *r2d_fpga_readfn[] = {
+ r2d_fpga_read,
+ r2d_fpga_read,
+ NULL,
+};
+
+static CPUWriteMemoryFunc *r2d_fpga_writefn[] = {
+ r2d_fpga_write,
+ r2d_fpga_write,
+ NULL,
+};
+
+static qemu_irq *r2d_fpga_init(target_phys_addr_t base, qemu_irq irl)
+{
+ int iomemtype;
+ r2d_fpga_t *s;
+
+ s = qemu_mallocz(sizeof(r2d_fpga_t));
+
+ s->irl = irl;
+
+ iomemtype = cpu_register_io_memory(0, r2d_fpga_readfn,
+ r2d_fpga_writefn, s);
+ cpu_register_physical_memory(base, 0x40, iomemtype);
+ return qemu_allocate_irqs(r2d_fpga_irq_set, s, NR_IRQS);
+}
+
+static void r2d_pci_set_irq(qemu_irq *p, int n, int l)
+{
+ qemu_set_irq(p[n], l);
+}
+
+static int r2d_pci_map_irq(PCIDevice *d, int irq_num)
+{
+ const int intx[] = { PCI_INTA, PCI_INTB, PCI_INTC, PCI_INTD };
+ return intx[d->devfn >> 3];
+}
+
+static void r2d_init(ram_addr_t ram_size,
+ const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
CPUState *env;
struct SH7750State *s;
+ ram_addr_t sdram_addr;
+ qemu_irq *irq;
+ PCIBus *pci;
+ int i;
- env = cpu_init();
+ if (!cpu_model)
+ cpu_model = "SH7751R";
+
+ env = cpu_init(cpu_model);
+ if (!env) {
+ fprintf(stderr, "Unable to find CPU definition\n");
+ exit(1);
+ }
/* Allocate memory space */
- cpu_register_physical_memory(SDRAM_BASE, SDRAM_SIZE, 0);
+ sdram_addr = qemu_ram_alloc(SDRAM_SIZE);
+ cpu_register_physical_memory(SDRAM_BASE, SDRAM_SIZE, sdram_addr);
/* Register peripherals */
s = sh7750_init(env);
+ irq = r2d_fpga_init(0x04000000, sh7750_irl(s));
+ pci = sh_pci_register_bus(r2d_pci_set_irq, r2d_pci_map_irq, irq, 0, 4);
+
+ sm501_init(0x10000000, SM501_VRAM_SIZE, irq[SM501], serial_hds[2]);
+
+ /* onboard CF (True IDE mode, Master only). */
+ if ((i = drive_get_index(IF_IDE, 0, 0)) != -1)
+ mmio_ide_init(0x14001000, 0x1400080c, irq[CF_IDE], 1,
+ drives_table[i].bdrv, NULL);
+
+ /* NIC: rtl8139 on-board, and 2 slots. */
+ for (i = 0; i < nb_nics; i++)
+ pci_nic_init(pci, &nd_table[i], (i==0)? 2<<3: -1, "rtl8139");
+
/* Todo: register on board registers */
- {
+ if (kernel_filename) {
int kernel_size;
+ /* initialization which should be done by firmware */
+ stl_phys(SH7750_BCR1, 1<<3); /* cs3 SDRAM */
+ stw_phys(SH7750_BCR2, 3<<(3*2)); /* cs3 32bit */
- kernel_size = load_image(kernel_filename, phys_ram_base);
+ if (kernel_cmdline) {
+ kernel_size = load_image_targphys(kernel_filename,
+ SDRAM_BASE + LINUX_LOAD_OFFSET,
+ SDRAM_SIZE - LINUX_LOAD_OFFSET);
+ env->pc = (SDRAM_BASE + LINUX_LOAD_OFFSET) | 0xa0000000;
+ pstrcpy_targphys(SDRAM_BASE + 0x10100, 256, kernel_cmdline);
+ } else {
+ kernel_size = load_image_targphys(kernel_filename, SDRAM_BASE, SDRAM_SIZE);
+ env->pc = SDRAM_BASE | 0xa0000000; /* Start from P2 area */
+ }
if (kernel_size < 0) {
fprintf(stderr, "qemu: could not load kernel '%s'\n", kernel_filename);
exit(1);
}
-
- env->pc = SDRAM_BASE | 0xa0000000; /* Start from P2 area */
}
}
-QEMUMachine r2d_machine = {
- "r2d",
- "r2d-plus board",
- r2d_init
+static QEMUMachine r2d_machine = {
+ .name = "r2d",
+ .desc = "r2d-plus board",
+ .init = r2d_init,
};
+
+static void r2d_machine_init(void)
+{
+ qemu_register_machine(&r2d_machine);
+}
+
+machine_init(r2d_machine_init);
projects / qemu / blobdiff