Add SPARCserver 600MP emulation (original patch by Robert Reif)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3604 c046a42c-6fe2-441c-8c8c-71466251a162

hw/slavio_misc.c

@@ -46,11 +46,14 @@ typedef struct MiscState {
     uint8_t aux1, aux2;
     uint8_t diag, mctrl;
     uint32_t sysctrl;
+    uint16_t leds;
 } MiscState;
 
 #define MISC_SIZE 1
 #define SYSCTRL_MAXADDR 3
 #define SYSCTRL_SIZE (SYSCTRL_MAXADDR + 1)
+#define LED_MAXADDR 2
+#define LED_SIZE (LED_MAXADDR + 1)
 
 static void slavio_misc_update_irq(void *opaque)
 {
@@ -223,6 +226,54 @@ static CPUWriteMemoryFunc *slavio_sysctrl_mem_write[3] = {
     slavio_sysctrl_mem_writel,
 };
 
+static uint32_t slavio_led_mem_reads(void *opaque, target_phys_addr_t addr)
+{
+    MiscState *s = opaque;
+    uint32_t ret = 0, saddr;
+
+    saddr = addr & LED_MAXADDR;
+    switch (saddr) {
+    case 0:
+        ret = s->leds;
+        break;
+    default:
+        break;
+    }
+    MISC_DPRINTF("Read diagnostic LED reg 0x" TARGET_FMT_plx " = %x\n", addr,
+                 ret);
+    return ret;
+}
+
+static void slavio_led_mem_writes(void *opaque, target_phys_addr_t addr,
+                                  uint32_t val)
+{
+    MiscState *s = opaque;
+    uint32_t saddr;
+
+    saddr = addr & LED_MAXADDR;
+    MISC_DPRINTF("Write diagnostic LED reg 0x" TARGET_FMT_plx " =  %x\n", addr,
+                 val);
+    switch (saddr) {
+    case 0:
+        s->sysctrl = val;
+        break;
+    default:
+        break;
+    }
+}
+
+static CPUReadMemoryFunc *slavio_led_mem_read[3] = {
+    slavio_led_mem_reads,
+    slavio_led_mem_reads,
+    slavio_led_mem_reads,
+};
+
+static CPUWriteMemoryFunc *slavio_led_mem_write[3] = {
+    slavio_led_mem_writes,
+    slavio_led_mem_writes,
+    slavio_led_mem_writes,
+};
+
 static void slavio_misc_save(QEMUFile *f, void *opaque)
 {
     MiscState *s = opaque;
@@ -291,6 +342,13 @@ void *slavio_misc_init(target_phys_addr_t base, target_phys_addr_t power_base,
     // Power management
     cpu_register_physical_memory(power_base, MISC_SIZE, slavio_misc_io_memory);
 
+    /* 16 bit registers */
+    slavio_misc_io_memory = cpu_register_io_memory(0, slavio_led_mem_read,
+                                                   slavio_led_mem_write, s);
+    /* ss600mp diag LEDs */
+    cpu_register_physical_memory(base + 0x1600000, MISC_SIZE,
+                                 slavio_misc_io_memory);
+
     /* 32 bit registers */
     slavio_misc_io_memory = cpu_register_io_memory(0, slavio_sysctrl_mem_read,
                                                    slavio_sysctrl_mem_write,

hw/sun4m.c

@@ -388,7 +388,8 @@ static void *sun4m_hw_init(const struct hwdef *hwdef, int RAM_size,
     slavio_serial_init(hwdef->serial_base, slavio_irq[hwdef->ser_irq],
                        serial_hds[1], serial_hds[0]);
 
-    sun4m_fdctrl_init(slavio_irq[hwdef->fd_irq], hwdef->fd_base, fd_table);
+    if (hwdef->fd_base != (target_phys_addr_t)-1)
+        sun4m_fdctrl_init(slavio_irq[hwdef->fd_irq], hwdef->fd_base, fd_table);
 
     main_esp = esp_init(bs_table, hwdef->esp_base, espdma, *espdma_irq,
                         esp_reset);
@@ -546,6 +547,39 @@ static const struct hwdef hwdefs[] = {
             6, 0, 4, 10, 8, 0, 11, 0,   0, 0, 0, 0, 15, 0, 15, 0,
         },
     },
+    /* SS-600MP */
+    {
+        .iommu_base   = 0xfe0000000ULL,
+        .tcx_base     = 0xe20000000ULL,
+        .cs_base      = -1,
+        .slavio_base  = 0xff0000000ULL,
+        .ms_kb_base   = 0xff1000000ULL,
+        .serial_base  = 0xff1100000ULL,
+        .nvram_base   = 0xff1200000ULL,
+        .fd_base      = -1,
+        .counter_base = 0xff1300000ULL,
+        .intctl_base  = 0xff1400000ULL,
+        .dma_base     = 0xef0081000ULL,
+        .esp_base     = 0xef0080000ULL,
+        .le_base      = 0xef0060000ULL,
+        .power_base   = 0xefa000000ULL,
+        .vram_size    = 0x00100000,
+        .nvram_size   = 0x2000,
+        .esp_irq = 18,
+        .le_irq = 16,
+        .clock_irq = 7,
+        .clock1_irq = 19,
+        .ms_kb_irq = 14,
+        .ser_irq = 15,
+        .fd_irq = 22,
+        .me_irq = 30,
+        .cs_irq = -1,
+        .machine_id = 0x71,
+        .intbit_to_level = {
+            2, 3, 5, 7, 9, 11, 0, 14,   3, 5, 7, 9, 11, 13, 12, 12,
+            6, 0, 4, 10, 8, 0, 11, 0,   0, 0, 0, 0, 15, 0, 15, 0,
+        },
+    },
 };
 
 static void sun4m_common_init(int RAM_size, const char *boot_device, DisplayState *ds,
@@ -594,6 +628,19 @@ static void ss10_init(int RAM_size, int vga_ram_size, const char *boot_device,
                       1, 0xffffffff); // XXX actually first 62GB ok
 }
 
+/* SPARCserver 600MP hardware initialisation */
+static void ss600mp_init(int RAM_size, int vga_ram_size, const char *boot_device,
+                         DisplayState *ds, const char **fd_filename, int snapshot,
+                         const char *kernel_filename, const char *kernel_cmdline,
+                         const char *initrd_filename, const char *cpu_model)
+{
+    if (cpu_model == NULL)
+        cpu_model = "TI SuperSparc II";
+    sun4m_common_init(RAM_size, boot_device, ds, kernel_filename,
+                      kernel_cmdline, initrd_filename, cpu_model,
+                      2, 0xffffffff); // XXX actually first 62GB ok
+}
+
 QEMUMachine ss5_machine = {
     "SS-5",
     "Sun4m platform, SPARCstation 5",
@@ -605,3 +652,9 @@ QEMUMachine ss10_machine = {
     "Sun4m platform, SPARCstation 10",
     ss10_init,
 };
+
+QEMUMachine ss600mp_machine = {
+    "SS-600MP",
+    "Sun4m platform, SPARCserver 600MP",
+    ss600mp_init,
+};

qemu-doc.texi

@@ -1949,10 +1949,10 @@ More information is available at
 @node Sparc32 System emulator
 @section Sparc32 System emulator
 
-Use the executable @file{qemu-system-sparc} to simulate a SparcStation 5
+Use the executable @file{qemu-system-sparc} to simulate a SPARCstation
-or SparcStation 10 (sun4m architecture). The emulation is somewhat complete.
+5, SPARCstation 10, or SPARCserver 600MP (sun4m architecture). The
-SMP up to 16 CPUs is supported, but Linux limits the number of usable CPUs
+emulation is somewhat complete.  SMP up to 16 CPUs is supported, but
-to 4.
+Linux limits the number of usable CPUs to 4.
 
 QEMU emulates the following sun4m peripherals:
 
@@ -1971,13 +1971,14 @@ and power/reset logic
 @item
 ESP SCSI controller with hard disk and CD-ROM support
 @item
-Floppy drive
+Floppy drive (not on SS-600MP)
 @item
 CS4231 sound device (only on SS-5, not working yet)
 @end itemize
 
-The number of peripherals is fixed in the architecture.  Maximum memory size
+The number of peripherals is fixed in the architecture.  Maximum
-depends on the machine type, for SS-5 it is 256MB and for SS-10 2047MB.
+memory size depends on the machine type, for SS-5 it is 256MB and for
+SS-10 and SS-600MP 2047MB.
 
 Since version 0.8.2, QEMU uses OpenBIOS
 @url{http://www.openbios.org/}. OpenBIOS is a free (GPL v2) portable

vl.c

@@ -7421,6 +7421,7 @@ void register_machines(void)
 #else
     qemu_register_machine(&ss5_machine);
     qemu_register_machine(&ss10_machine);
+    qemu_register_machine(&ss600mp_machine);
 #endif
 #elif defined(TARGET_ARM)
     qemu_register_machine(&integratorcp_machine);

vl.h

@@ -1048,7 +1048,7 @@ void PPC_debug_write (void *opaque, uint32_t addr, uint32_t val);
 #endif
 
 /* sun4m.c */
-extern QEMUMachine ss5_machine, ss10_machine;
+extern QEMUMachine ss5_machine, ss10_machine, ss600mp_machine;
 
 /* iommu.c */
 void *iommu_init(target_phys_addr_t addr);