Commit cb228f5a authored by Cédric Le Goater's avatar Cédric Le Goater Committed by David Gibson
Browse files

ppc/pnv: populate device tree for serial devices 



Signed-off-by: default avatarCédric Le Goater <clg@kaod.org>
Reviewed-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
Signed-off-by: default avatarDavid Gibson <david@gibson.dropbear.id.au>
parent c5ffdcae

hw/ppc/pnv.c

+33 −0
Original line number Diff line number Diff line
@@ -323,6 +323,37 @@ static void powernv_populate_rtc(ISADevice *d, void *fdt, int lpc_off) 
    _FDT((fdt_setprop_string(fdt, node, "compatible", "pnpPNP,b00")));

}



static void powernv_populate_serial(ISADevice *d, void *fdt, int lpc_off)

{

    const char compatible[] = "ns16550\0pnpPNP,501";

    uint32_t io_base = d->ioport_id;

    uint32_t io_regs[] = {

        cpu_to_be32(1),

        cpu_to_be32(io_base),

        cpu_to_be32(8)

    };

    char *name;

    int node;



    name = g_strdup_printf("%s@i%x", qdev_fw_name(DEVICE(d)), io_base);

    node = fdt_add_subnode(fdt, lpc_off, name);

    _FDT(node);

    g_free(name);



    _FDT((fdt_setprop(fdt, node, "reg", io_regs, sizeof(io_regs))));

    _FDT((fdt_setprop(fdt, node, "compatible", compatible,

                      sizeof(compatible))));



    _FDT((fdt_setprop_cell(fdt, node, "clock-frequency", 1843200)));

    _FDT((fdt_setprop_cell(fdt, node, "current-speed", 115200)));

    _FDT((fdt_setprop_cell(fdt, node, "interrupts", d->isairq[0])));

    _FDT((fdt_setprop_cell(fdt, node, "interrupt-parent",

                           fdt_get_phandle(fdt, lpc_off))));



    /* This is needed by Linux */

    _FDT((fdt_setprop_string(fdt, node, "device_type", "serial")));

}



typedef struct ForeachPopulateArgs {

    void *fdt;

    int offset;
@@ -335,6 +366,8 @@ static int powernv_populate_isa_device(DeviceState *dev, void *opaque) 


    if (object_dynamic_cast(OBJECT(dev), TYPE_MC146818_RTC)) {

        powernv_populate_rtc(d, args->fdt, args->offset);

    } else if (object_dynamic_cast(OBJECT(dev), TYPE_ISA_SERIAL)) {

        powernv_populate_serial(d, args->fdt, args->offset);

    } else {

        error_report("unknown isa device %s@i%x", qdev_fw_name(dev),

                     d->ioport_id);