[Qemu-ppc] [PATCH v2 3/6] prep: use pc87312 Super I/O chip instead of collection of random ISA devices

[Hervé Poussineau]

We can't however replace the built-in IDE controller, as the one in pc87312
is only single-channel and can use only IRQ 14.
PReP emulation also gains a parallel port emulation.

Cc: Andreas Färber <address@hidden>
Signed-off-by: Hervé Poussineau <address@hidden>
---
 default-configs/ppc-softmmu.mak |    2 ++
 hw/ppc_prep.c                   |   38 ++++++--------------------------------
 2 files changed, 8 insertions(+), 32 deletions(-)

diff --git a/default-configs/ppc-softmmu.mak b/default-configs/ppc-softmmu.mak
index 1a768fc..14568b3 100644
--- a/default-configs/ppc-softmmu.mak
+++ b/default-configs/ppc-softmmu.mak
@@ -8,6 +8,7 @@ CONFIG_M48T59=y
 CONFIG_VGA=y
 CONFIG_VGA_PCI=y
 CONFIG_SERIAL=y
+CONFIG_PARALLEL=y
 CONFIG_I8254=y
 CONFIG_PCKBD=y
 CONFIG_FDC=y
@@ -16,6 +17,7 @@ CONFIG_I82374=y
 CONFIG_OPENPIC=y
 CONFIG_PREP_PCI=y
 CONFIG_I82378=y
+CONFIG_PC87312=y
 CONFIG_MACIO=y
 CONFIG_PCSPK=y
 CONFIG_CUDA=y
diff --git a/hw/ppc_prep.c b/hw/ppc_prep.c
index 9d8e659..30029f9 100644
--- a/hw/ppc_prep.c
+++ b/hw/ppc_prep.c
@@ -211,7 +211,6 @@ typedef struct sysctrl_t {
     M48t59State *nvram;
     uint8_t state;
     uint8_t syscontrol;
-    uint8_t fake_io[2];
     int contiguous_map;
     int endian;
 } sysctrl_t;
@@ -222,24 +221,6 @@ enum {
 
 static sysctrl_t *sysctrl;
 
-static void PREP_io_write (void *opaque, uint32_t addr, uint32_t val)
-{
-    sysctrl_t *sysctrl = opaque;
-
-    PPC_IO_DPRINTF("0x%08" PRIx32 " => 0x%02" PRIx32 "\n", addr - PPC_IO_BASE,
-                   val);
-    sysctrl->fake_io[addr - 0x0398] = val;
-}
-
-static uint32_t PREP_io_read (void *opaque, uint32_t addr)
-{
-    sysctrl_t *sysctrl = opaque;
-
-    PPC_IO_DPRINTF("0x%08" PRIx32 " <= 0x%02" PRIx32 "\n", addr - PPC_IO_BASE,
-                   sysctrl->fake_io[addr - 0x0398]);
-    return sysctrl->fake_io[addr - 0x0398];
-}
-
 static void PREP_io_800_writeb (void *opaque, uint32_t addr, uint32_t val)
 {
     sysctrl_t *sysctrl = opaque;
@@ -506,10 +487,10 @@ static void ppc_prep_init (ram_addr_t ram_size,
     PCIBus *pci_bus;
     PCIDevice *pci;
     ISABus *isa_bus;
+    ISADevice *isa;
     qemu_irq *cpu_exit_irq;
     int ppc_boot_device;
     DriveInfo *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
-    DriveInfo *fd[MAX_FD];
 
     sysctrl = g_malloc0(sizeof(sysctrl_t));
 
@@ -635,6 +616,11 @@ static void ppc_prep_init (ram_addr_t ram_size,
     sysbus_connect_irq(&pcihost->busdev, 3, qdev_get_gpio_in(&pci->qdev, 11));
     isa_bus = DO_UPCAST(ISABus, qbus, qdev_get_child_bus(&pci->qdev, "isa.0"));
 
+    /* Super I/O (parallel + serial ports) */
+    isa = isa_create(isa_bus, "pc87312");
+    qdev_prop_set_uint8(&isa->qdev, "config", 13); /* fdc, ser0, ser1, par0 */
+    qdev_init_nofail(&isa->qdev);
+
     /* Register 8 MB of ISA IO space (needed for non-contiguous map) */
     memory_region_init_io(PPC_io_memory, &PPC_prep_io_ops, sysctrl,
                           "ppc-io", 0x00800000);
@@ -643,8 +629,6 @@ static void ppc_prep_init (ram_addr_t ram_size,
     /* init basic PC hardware */
     pci_vga_init(pci_bus);
 
-    if (serial_hds[0])
-        serial_isa_init(isa_bus, 0, serial_hds[0]);
     nb_nics1 = nb_nics;
     if (nb_nics1 > NE2000_NB_MAX)
         nb_nics1 = NE2000_NB_MAX;
@@ -668,17 +652,7 @@ static void ppc_prep_init (ram_addr_t ram_size,
     }
     isa_create_simple(isa_bus, "i8042");
 
-    //    SB16_init();
-
-    for(i = 0; i < MAX_FD; i++) {
-        fd[i] = drive_get(IF_FLOPPY, 0, i);
-    }
-    fdctrl_init_isa(isa_bus, fd);
-
-    /* Register fake IO ports for PREP */
     sysctrl->reset_irq = first_cpu->irq_inputs[PPC6xx_INPUT_HRESET];
-    register_ioport_read(0x398, 2, 1, &PREP_io_read, sysctrl);
-    register_ioport_write(0x398, 2, 1, &PREP_io_write, sysctrl);
     /* System control ports */
     register_ioport_read(0x0092, 0x01, 1, &PREP_io_800_readb, sysctrl);
     register_ioport_write(0x0092, 0x01, 1, &PREP_io_800_writeb, sysctrl);
-- 
1.7.9.1