Add ARM RealView Emulation Baseboard.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2164 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 208 insertions, 0 deletions

diff --git a/hw/arm_sysctl.c b/hw/arm_sysctl.c
new file mode 100644
index 0000000..e9de998
--- /dev/null
+++ b/hw/arm_sysctl.c
@@ -0,0 +1,208 @@
+/* 
+ * Status and system control registers for ARM RealView/Versatile boards.
+ *
+ * Copyright (c) 2006 CodeSourcery.
+ * Written by Paul Brook
+ *
+ * This code is licenced under the GPL.
+ */
+
+#include "vl.h"
+#include "arm_pic.h"
+
+#define LOCK_VALUE 0xa05f
+
+typedef struct {
+    uint32_t base;
+    uint32_t sys_id;
+    uint32_t leds;
+    uint16_t lockval;
+    uint32_t cfgdata1;
+    uint32_t cfgdata2;
+    uint32_t flags;
+    uint32_t nvflags;
+    uint32_t resetlevel;
+} arm_sysctl_state;
+
+static uint32_t arm_sysctl_read(void *opaque, target_phys_addr_t offset)
+{
+    arm_sysctl_state *s = (arm_sysctl_state *)opaque;
+
+    offset -= s->base;
+    switch (offset) {
+    case 0x00: /* ID */
+        return s->sys_id;
+    case 0x04: /* SW */
+        /* General purpose hardware switches.
+           We don't have a useful way of exposing these to the user.  */
+        return 0;
+    case 0x08: /* LED */
+        return s->leds;
+    case 0x20: /* LOCK */
+        return s->lockval;
+    case 0x0c: /* OSC0 */
+    case 0x10: /* OSC1 */
+    case 0x14: /* OSC2 */
+    case 0x18: /* OSC3 */
+    case 0x1c: /* OSC4 */
+    case 0x24: /* 100HZ */
+        /* ??? Implement these.  */
+        return 0;
+    case 0x28: /* CFGDATA1 */
+        return s->cfgdata1;
+    case 0x2c: /* CFGDATA2 */
+        return s->cfgdata2;
+    case 0x30: /* FLAGS */
+        return s->flags;
+    case 0x38: /* NVFLAGS */
+        return s->nvflags;
+    case 0x40: /* RESETCTL */
+        return s->resetlevel;
+    case 0x44: /* PCICTL */
+        return 1;
+    case 0x48: /* MCI */
+        return 0;
+    case 0x4c: /* FLASH */
+        return 0;
+    case 0x50: /* CLCD */
+        return 0x1000;
+    case 0x54: /* CLCDSER */
+        return 0;
+    case 0x58: /* BOOTCS */
+        return 0;
+    case 0x5c: /* 24MHz */
+        /* ??? not implemented.  */
+        return 0;
+    case 0x60: /* MISC */
+        return 0;
+    case 0x84: /* PROCID0 */
+        /* ??? Don't know what the proper value for the core tile ID is.  */
+        return 0x02000000;
+    case 0x88: /* PROCID1 */
+        return 0xff000000;
+    case 0x64: /* DMAPSR0 */
+    case 0x68: /* DMAPSR1 */
+    case 0x6c: /* DMAPSR2 */
+    case 0x70: /* IOSEL */
+    case 0x74: /* PLDCTL */
+    case 0x80: /* BUSID */
+    case 0x8c: /* OSCRESET0 */
+    case 0x90: /* OSCRESET1 */
+    case 0x94: /* OSCRESET2 */
+    case 0x98: /* OSCRESET3 */
+    case 0x9c: /* OSCRESET4 */
+    case 0xc0: /* SYS_TEST_OSC0 */
+    case 0xc4: /* SYS_TEST_OSC1 */
+    case 0xc8: /* SYS_TEST_OSC2 */
+    case 0xcc: /* SYS_TEST_OSC3 */
+    case 0xd0: /* SYS_TEST_OSC4 */
+        return 0;
+    default:
+        printf ("arm_sysctl_read: Bad register offset 0x%x\n", (int)offset);
+        return 0;
+    }
+}
+
+static void arm_sysctl_write(void *opaque, target_phys_addr_t offset,
+                          uint32_t val)
+{
+    arm_sysctl_state *s = (arm_sysctl_state *)opaque;
+    offset -= s->base;
+
+    switch (offset) {
+    case 0x08: /* LED */
+        s->leds = val;
+    case 0x0c: /* OSC0 */
+    case 0x10: /* OSC1 */
+    case 0x14: /* OSC2 */
+    case 0x18: /* OSC3 */
+    case 0x1c: /* OSC4 */
+        /* ??? */
+        break;
+    case 0x20: /* LOCK */
+        if (val == LOCK_VALUE)
+            s->lockval = val;
+        else
+            s->lockval = val & 0x7fff;
+        break;
+    case 0x28: /* CFGDATA1 */
+        /* ??? Need to implement this.  */
+        s->cfgdata1 = val;
+        break;
+    case 0x2c: /* CFGDATA2 */
+        /* ??? Need to implement this.  */
+        s->cfgdata2 = val;
+        break;
+    case 0x30: /* FLAGSSET */
+        s->flags |= val;
+        break;
+    case 0x34: /* FLAGSCLR */
+        s->flags &= ~val;
+        break;
+    case 0x38: /* NVFLAGSSET */
+        s->nvflags |= val;
+        break;
+    case 0x3c: /* NVFLAGSCLR */
+        s->nvflags &= ~val;
+        break;
+    case 0x40: /* RESETCTL */
+        if (s->lockval == LOCK_VALUE) {
+            s->resetlevel = val;
+            if (val & 0x100)
+                cpu_abort(cpu_single_env, "Board reset\n");
+        }
+        break;
+    case 0x44: /* PCICTL */
+        /* nothing to do.  */
+        break;
+    case 0x4c: /* FLASH */
+    case 0x50: /* CLCD */
+    case 0x54: /* CLCDSER */
+    case 0x64: /* DMAPSR0 */
+    case 0x68: /* DMAPSR1 */
+    case 0x6c: /* DMAPSR2 */
+    case 0x70: /* IOSEL */
+    case 0x74: /* PLDCTL */
+    case 0x80: /* BUSID */
+    case 0x84: /* PROCID0 */
+    case 0x88: /* PROCID1 */
+    case 0x8c: /* OSCRESET0 */
+    case 0x90: /* OSCRESET1 */
+    case 0x94: /* OSCRESET2 */
+    case 0x98: /* OSCRESET3 */
+    case 0x9c: /* OSCRESET4 */
+        break;
+    default:
+        printf ("arm_sysctl_write: Bad register offset 0x%x\n", (int)offset);
+        return;
+    }
+}
+
+static CPUReadMemoryFunc *arm_sysctl_readfn[] = {
+   arm_sysctl_read,
+   arm_sysctl_read,
+   arm_sysctl_read
+};
+
+static CPUWriteMemoryFunc *arm_sysctl_writefn[] = {
+   arm_sysctl_write,
+   arm_sysctl_write,
+   arm_sysctl_write
+};
+
+void arm_sysctl_init(uint32_t base, uint32_t sys_id)
+{
+    arm_sysctl_state *s;
+    int iomemtype;
+
+    s = (arm_sysctl_state *)qemu_mallocz(sizeof(arm_sysctl_state));
+    if (!s)
+        return;
+    s->base = base;
+    s->sys_id = sys_id;
+    iomemtype = cpu_register_io_memory(0, arm_sysctl_readfn,
+                                       arm_sysctl_writefn, s);
+    cpu_register_physical_memory(base, 0x00000fff, iomemtype);
+    /* ??? Save/restore.  */
+}
+