MIPS Magnum R4000 machine

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4164 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 275 insertions, 0 deletions

diff --git a/hw/mips_jazz.c b/hw/mips_jazz.c
new file mode 100644
index 0000000..910ddb9
--- /dev/null
+++ b/hw/mips_jazz.c
@@ -0,0 +1,275 @@
+/*
+ * QEMU MIPS Jazz support
+ *
+ * Copyright (c) 2007-2008 Hervé Poussineau
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#include "hw.h"
+#include "mips.h"
+#include "pc.h"
+#include "isa.h"
+#include "fdc.h"
+#include "sysemu.h"
+#include "audio/audio.h"
+#include "boards.h"
+#include "net.h"
+#include "scsi.h"
+
+extern int nographic;
+
+#ifdef TARGET_WORDS_BIGENDIAN
+#define BIOS_FILENAME "mips_bios.bin"
+#else
+#define BIOS_FILENAME "mipsel_bios.bin"
+#endif
+
+#ifdef TARGET_MIPS64
+#define PHYS_TO_VIRT(x) ((x) | ~0x7fffffffULL)
+#else
+#define PHYS_TO_VIRT(x) ((x) | ~0x7fffffffU)
+#endif
+#define VIRT_TO_PHYS_ADDEND (-((int64_t)(int32_t)0x80000000))
+
+enum jazz_model_e
+{
+    JAZZ_MAGNUM,
+};
+
+static void main_cpu_reset(void *opaque)
+{
+    CPUState *env = opaque;
+    cpu_reset(env);
+}
+
+static uint32_t rtc_readb(void *opaque, target_phys_addr_t addr)
+{
+    CPUState *env = opaque;
+    return cpu_inw(env, 0x71);
+}
+
+static void rtc_writeb(void *opaque, target_phys_addr_t addr, uint32_t val)
+{
+    CPUState *env = opaque;
+    cpu_outw(env, 0x71, val & 0xff);
+}
+
+static CPUReadMemoryFunc *rtc_read[3] = {
+    rtc_readb,
+    rtc_readb,
+    rtc_readb,
+};
+
+static CPUWriteMemoryFunc *rtc_write[3] = {
+    rtc_writeb,
+    rtc_writeb,
+    rtc_writeb,
+};
+
+#ifdef HAS_AUDIO
+static void audio_init(qemu_irq *pic)
+{
+    struct soundhw *c;
+    int audio_enabled = 0;
+
+    for (c = soundhw; !audio_enabled && c->name; ++c) {
+        audio_enabled = c->enabled;
+    }
+
+    if (audio_enabled) {
+        AudioState *s;
+
+        s = AUD_init();
+        if (s) {
+            for (c = soundhw; c->name; ++c) {
+                if (c->enabled) {
+                    if (c->isa) {
+                        c->init.init_isa(s, pic);
+                    }
+                }
+            }
+        }
+    }
+}
+#endif
+
+void espdma_memory_read(void *opaque, uint8_t *buf, int len)
+{
+    printf("espdma_memory_read(buf %p, len %d) not implemented\n", buf, len);
+}
+
+void espdma_memory_write(void *opaque, uint8_t *buf, int len)
+{
+    printf("espdma_memory_write(buf %p, len %d) not implemented\n", buf, len);
+}
+
+#define MAGNUM_BIOS_SIZE_MAX 0x7e000
+#define MAGNUM_BIOS_SIZE (BIOS_SIZE < MAGNUM_BIOS_SIZE_MAX ? BIOS_SIZE : MAGNUM_BIOS_SIZE_MAX)
+
+static
+void mips_jazz_init (int ram_size, int vga_ram_size,
+                     DisplayState *ds, const char *cpu_model,
+                     enum jazz_model_e jazz_model)
+{
+    char buf[1024];
+    unsigned long bios_offset;
+    int bios_size, n;
+    CPUState *env;
+    qemu_irq *rc4030, *i8259;
+    void *scsi_hba;
+    int hd;
+    int s_rtc;
+    PITState *pit;
+    BlockDriverState *fds[MAX_FD];
+    qemu_irq esp_reset;
+
+    /* init CPUs */
+    if (cpu_model == NULL) {
+#ifdef TARGET_MIPS64
+        cpu_model = "R4000";
+#else
+        /* FIXME: All wrong, this maybe should be R3000 for the older JAZZs. */
+        cpu_model = "24Kf";
+#endif
+    }
+    env = cpu_init(cpu_model);
+    if (!env) {
+        fprintf(stderr, "Unable to find CPU definition\n");
+        exit(1);
+    }
+    register_savevm("cpu", 0, 3, cpu_save, cpu_load, env);
+    qemu_register_reset(main_cpu_reset, env);
+
+    /* allocate RAM */
+    cpu_register_physical_memory(0, ram_size, IO_MEM_RAM);
+
+    /* load the BIOS image. */
+    bios_offset = ram_size + vga_ram_size;
+    snprintf(buf, sizeof(buf), "%s/%s", bios_dir, BIOS_FILENAME);
+    bios_size = load_image(buf, phys_ram_base + bios_offset);
+    if (bios_size < 0 || bios_size > MAGNUM_BIOS_SIZE) {
+        fprintf(stderr, "qemu: Could not load MIPS bios '%s'\n",
+                buf);
+        exit(1);
+    }
+
+    cpu_register_physical_memory(0x1fc00000LL,
+                                 MAGNUM_BIOS_SIZE, bios_offset | IO_MEM_ROM);
+    cpu_register_physical_memory(0xfff00000LL,
+                                 MAGNUM_BIOS_SIZE, bios_offset | IO_MEM_ROM);
+
+    /* Init CPU internal devices */
+    cpu_mips_irq_init_cpu(env);
+    cpu_mips_clock_init(env);
+
+    /* Chipset */
+    rc4030 = rc4030_init(env->irq[6], env->irq[3]);
+
+    /* ISA devices */
+    i8259 = i8259_init(env->irq[4]);
+    pit = pit_init(0x40, i8259[0]);
+    pcspk_init(pit);
+
+    /* ISA IO space at 0x90000000 */
+    isa_mmio_init(0x90000000, 0x01000000);
+    isa_mem_base = 0x11000000;
+
+    /* Video card */
+    switch (jazz_model) {
+    case JAZZ_MAGNUM:
+        g364fb_mm_init(ds, vga_ram_size, 0, 0x40000000, 0x60000000);
+        break;
+    default:
+        break;
+    }
+
+    /* Network controller */
+    /* FIXME: missing NS SONIC DP83932 */
+
+    /* SCSI adapter */
+    scsi_hba = esp_init(0x80002000,
+                        espdma_memory_read, espdma_memory_write, NULL,
+                        rc4030[5], &esp_reset);
+    for (n = 0; n < ESP_MAX_DEVS; n++) {
+        hd = drive_get_index(IF_SCSI, 0, n);
+        if (hd != -1) {
+            esp_scsi_attach(scsi_hba, drives_table[hd].bdrv, n);
+        }
+    }
+
+    /* Floppy */
+    if (drive_get_max_bus(IF_FLOPPY) >= MAX_FD) {
+        fprintf(stderr, "qemu: too many floppy drives\n");
+        exit(1);
+    }
+    for (n = 0; n < MAX_FD; n++) {
+        int fd = drive_get_index(IF_FLOPPY, 0, n);
+        if (fd != -1)
+            fds[n] = drives_table[fd].bdrv;
+        else
+            fds[n] = NULL;
+    }
+    fdctrl_init(rc4030[1], 0, 1, 0x80003000, fds);
+
+    /* Real time clock */
+    rtc_init(0x70, i8259[8]);
+    s_rtc = cpu_register_io_memory(0, rtc_read, rtc_write, env);
+    cpu_register_physical_memory(0x80004000, 0x00001000, s_rtc);
+
+    /* Keyboard (i8042) */
+    i8042_mm_init(rc4030[6], rc4030[7], 0x80005000, 0);
+
+    /* Serial ports */
+    if (serial_hds[0])
+        serial_mm_init(0x80006000, 0, rc4030[8], serial_hds[0], 1);
+    if (serial_hds[1])
+        serial_mm_init(0x80007000, 0, rc4030[9], serial_hds[1], 1);
+
+    /* Parallel port */
+    if (parallel_hds[0])
+        parallel_mm_init(0x80008000, 0, rc4030[0], parallel_hds[0]);
+
+    /* Sound card */
+    /* FIXME: missing Jazz sound at 0x8000c000, rc4030[2] */
+#ifdef HAS_AUDIO
+    audio_init(i8259);
+#endif
+
+    /* NVRAM: Unprotected at 0x9000, Protected at 0xa000, Read only at 0xb000 */
+    ds1225y_init(0x80009000, "nvram");
+
+    /* LED indicator */
+    jazz_led_init(ds, 0x8000f000);
+}
+
+static
+void mips_magnum_init (int ram_size, int vga_ram_size,
+                       const char *boot_device, DisplayState *ds,
+                       const char *kernel_filename, const char *kernel_cmdline,
+                       const char *initrd_filename, const char *cpu_model)
+{
+    mips_jazz_init(ram_size, vga_ram_size, ds, cpu_model, JAZZ_MAGNUM);
+}
+
+QEMUMachine mips_magnum_machine = {
+    "magnum",
+    "MIPS Magnum",
+    mips_magnum_init,
+};