Function rt_ofw_get_address_array

components/drivers/ofw/io.c:211–248

}

int rt_ofw_get_address_array(struct rt_ofw_node *np, int nr, rt_uint64_t *out_regs)
{
    int count;

    if (np && nr > 0 && out_regs)
    {
        rt_ssize_t len;
        int max_nr;
        int addr_cells = rt_ofw_io_addr_cells(np);
        int size_cells = rt_ofw_io_size_cells(np);
        const fdt32_t *cell = rt_ofw_prop_read_raw(np, "reg", &len);

        max_nr = len / (sizeof(*cell) * (addr_cells + size_cells));

        if (nr > max_nr)
        {
            nr = max_nr;
        }

        count = nr;

        while (nr --> 0)
        {
            *out_regs = rt_fdt_next_cell(&cell, addr_cells);
            *out_regs = rt_ofw_translate_address(np, RT_NULL, *out_regs);
            ++out_regs;

            *out_regs = rt_fdt_next_cell(&cell, size_cells);
            ++out_regs;
        }
    }
    else
    {
        count = -RT_EINVAL;
    }

    return count;
}

static struct bus_ranges *ofw_bus_ranges(struct rt_ofw_node *np, struct rt_ofw_prop *prop)
{