Commit c5de386a authored by Artyom Tarasenko's avatar Artyom Tarasenko Committed by Blue Swirl
Browse files

Sparc32: implement AFX for SS-5 



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: default avatarArtyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: default avatarBlue Swirl <blauwirbel@gmail.com>
parent ad3cea42

hw/sun4m.c

+41 −1
Original line number Diff line number Diff line
@@ -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,