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Sparc32: implement AFX for SS-5

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Implement a stub for the AFX register on SparcStation-5.
This stub is needed for running the original SS-5 OBP
instead of OpenBIOS (which allows to boot Solaris 2.5.1
and Solaris 2.6 kernels).

Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
This commit is contained in:
Artyom Tarasenko 2009-12-13 13:30:19 +00:00 committed by Blue Swirl
parent ad3cea4248
commit c5de386ac9
1 changed files with 41 additions and 1 deletions
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42
hw/sun4m.c
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@ -95,7 +95,7 @@ struct sun4m_hwdef {
target_phys_addr_t iommu_base, slavio_base;
target_phys_addr_t intctl_base, counter_base, nvram_base, ms_kb_base;
target_phys_addr_t serial_base, fd_base;
target_phys_addr_t idreg_base, dma_base, esp_base, le_base;
target_phys_addr_t afx_base, idreg_base, dma_base, esp_base, le_base;
target_phys_addr_t tcx_base, cs_base, apc_base, aux1_base, aux2_base;
target_phys_addr_t ecc_base;
uint32_t ecc_version;
@ -600,6 +600,41 @@ static void idreg_register_devices(void)
device_init(idreg_register_devices);
/* SS-5 TCX AFX register */
static void afx_init(target_phys_addr_t addr)
{
DeviceState *dev;
SysBusDevice *s;
dev = qdev_create(NULL, "tcx_afx");
qdev_init_nofail(dev);
s = sysbus_from_qdev(dev);
sysbus_mmio_map(s, 0, addr);
}
static int afx_init1(SysBusDevice *dev)
{
ram_addr_t afx_offset;
afx_offset = qemu_ram_alloc(4);
sysbus_init_mmio(dev, 4, afx_offset | IO_MEM_RAM);
return 0;
}
static SysBusDeviceInfo afx_info = {
.init = afx_init1,
.qdev.name = "tcx_afx",
.qdev.size = sizeof(SysBusDevice),
};
static void afx_register_devices(void)
{
sysbus_register_withprop(&afx_info);
}
device_init(afx_register_devices);
/* Boot PROM (OpenBIOS) */
static void prom_init(target_phys_addr_t addr, const char *bios_name)
{
@ -795,6 +830,10 @@ static void sun4m_hw_init(const struct sun4m_hwdef *hwdef, ram_addr_t RAM_size,
idreg_init(hwdef->idreg_base);
}
if (hwdef->afx_base) {
afx_init(hwdef->afx_base);
}
iommu = iommu_init(hwdef->iommu_base, hwdef->iommu_version,
slavio_irq[30]);
@ -920,6 +959,7 @@ static const struct sun4m_hwdef sun4m_hwdefs[] = {
.esp_base = 0x78800000,
.le_base = 0x78c00000,
.apc_base = 0x6a000000,
.afx_base = 0x6e000000,
.aux1_base = 0x71900000,
.aux2_base = 0x71910000,
.nvram_machine_id = 0x80,