Rearrange PCI host emulation code.

Add ARM PCI emulation.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1916 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 119 insertions, 0 deletions

diff --git a/hw/versatile_pci.c b/hw/versatile_pci.c
new file mode 100644
index 0000000..34a4bc6
--- /dev/null
+++ b/hw/versatile_pci.c
@@ -0,0 +1,119 @@
+/* 
+ * ARM Versatile/PB PCI host controller
+ *
+ * Copyright (c) 2006 CodeSourcery.
+ * Written by Paul Brook
+ *
+ * This code is licenced under the LGPL.
+ */
+
+#include "vl.h"
+
+static inline uint32_t vpb_pci_config_addr(target_phys_addr_t addr)
+{
+    return addr & 0xf8ff;
+}
+
+static void pci_vpb_config_writeb (void *opaque, target_phys_addr_t addr,
+                                   uint32_t val)
+{
+    pci_data_write(opaque, vpb_pci_config_addr (addr), val, 1);
+}
+
+static void pci_vpb_config_writew (void *opaque, target_phys_addr_t addr,
+                                   uint32_t val)
+{
+#ifdef TARGET_WORDS_BIGENDIAN
+    val = bswap16(val);
+#endif
+    pci_data_write(opaque, vpb_pci_config_addr (addr), val, 2);
+}
+
+static void pci_vpb_config_writel (void *opaque, target_phys_addr_t addr,
+                                   uint32_t val)
+{
+#ifdef TARGET_WORDS_BIGENDIAN
+    val = bswap32(val);
+#endif
+    pci_data_write(opaque, vpb_pci_config_addr (addr), val, 4);
+}
+
+static uint32_t pci_vpb_config_readb (void *opaque, target_phys_addr_t addr)
+{
+    uint32_t val;
+    val = pci_data_read(opaque, vpb_pci_config_addr (addr), 1);
+    return val;
+}
+
+static uint32_t pci_vpb_config_readw (void *opaque, target_phys_addr_t addr)
+{
+    uint32_t val;
+    val = pci_data_read(opaque, vpb_pci_config_addr (addr), 2);
+#ifdef TARGET_WORDS_BIGENDIAN
+    val = bswap16(val);
+#endif
+    return val;
+}
+
+static uint32_t pci_vpb_config_readl (void *opaque, target_phys_addr_t addr)
+{
+    uint32_t val;
+    val = pci_data_read(opaque, vpb_pci_config_addr (addr), 4);
+#ifdef TARGET_WORDS_BIGENDIAN
+    val = bswap32(val);
+#endif
+    return val;
+}
+
+static CPUWriteMemoryFunc *pci_vpb_config_write[] = {
+    &pci_vpb_config_writeb,
+    &pci_vpb_config_writew,
+    &pci_vpb_config_writel,
+};
+
+static CPUReadMemoryFunc *pci_vpb_config_read[] = {
+    &pci_vpb_config_readb,
+    &pci_vpb_config_readw,
+    &pci_vpb_config_readl,
+};
+
+static void pci_vpb_set_irq(PCIDevice *d, void *pic, int irq_num, int level)
+{
+    pic_set_irq_new(pic, 27 + irq_num, level);
+}
+
+PCIBus *pci_vpb_init(void *pic)
+{
+    PCIBus *s;
+    PCIDevice *d;
+    int mem_config;
+
+    s = pci_register_bus(pci_vpb_set_irq, pic, 11 << 3);
+    /* ??? Register memory space.  */
+
+    mem_config = cpu_register_io_memory(0, pci_vpb_config_read,
+                                        pci_vpb_config_write, s);
+    /* Selfconfig area.  */
+    cpu_register_physical_memory(0x41000000, 0x10000, mem_config);
+    /* Normal config area.  */
+    cpu_register_physical_memory(0x42000000, 0x10000, mem_config);
+
+    d = pci_register_device(s, "Versatile/PB PCI Controller",
+                            sizeof(PCIDevice), -1, NULL, NULL);
+    d->config[0x00] = 0xee; // vendor_id
+    d->config[0x01] = 0x10;
+    d->config[0x02] = 0x00; // device_id
+    d->config[0x03] = 0x03;
+    d->config[0x04] = 0x00;
+    d->config[0x05] = 0x00;
+    d->config[0x06] = 0x20;
+    d->config[0x07] = 0x02;
+    d->config[0x08] = 0x00; // revision
+    d->config[0x09] = 0x00; // programming i/f
+    d->config[0x0A] = 0x40; // class_sub = pci host
+    d->config[0x0B] = 0x0b; // class_base = PCI_bridge
+    d->config[0x0D] = 0x10; // latency_timer
+
+    return s;
+}
+