2 * Copyright (C) 2016 Atmel Corporation
3 * Wenyou.Yang <wenyou.yang@atmel.com>
5 * SPDX-License-Identifier: GPL-2.0+
9 #include <clk-uclass.h>
10 #include <dm/device.h>
16 DECLARE_GLOBAL_DATA_PTR;
18 static const struct udevice_id at91_pmc_match[] = {
19 { .compatible = "atmel,at91rm9200-pmc" },
20 { .compatible = "atmel,at91sam9260-pmc" },
21 { .compatible = "atmel,at91sam9g45-pmc" },
22 { .compatible = "atmel,at91sam9n12-pmc" },
23 { .compatible = "atmel,at91sam9x5-pmc" },
24 { .compatible = "atmel,sama5d3-pmc" },
25 { .compatible = "atmel,sama5d2-pmc" },
29 U_BOOT_DRIVER(at91_pmc) = {
31 .id = UCLASS_SIMPLE_BUS,
32 .of_match = at91_pmc_match,
35 /*---------------------------------------------------------*/
37 int at91_pmc_core_probe(struct udevice *dev)
39 struct pmc_platdata *plat = dev_get_platdata(dev);
41 dev = dev_get_parent(dev);
43 plat->reg_base = (struct at91_pmc *)dev_get_addr_ptr(dev);
49 * at91_clk_sub_device_bind() - for the at91 clock driver
50 * Recursively bind its children as clk devices.
52 * @return: 0 on success, or negative error code on failure
54 int at91_clk_sub_device_bind(struct udevice *dev, const char *drv_name)
56 const void *fdt = gd->fdt_blob;
57 int offset = dev_of_offset(dev);
58 bool pre_reloc_only = !(gd->flags & GD_FLG_RELOC);
62 for (offset = fdt_first_subnode(fdt, offset);
64 offset = fdt_next_subnode(fdt, offset)) {
66 !dm_fdt_pre_reloc(fdt, offset))
69 * If this node has "compatible" property, this is not
70 * a clock sub-node, but a normal device. skip.
72 fdt_get_property(fdt, offset, "compatible", &ret);
76 if (ret != -FDT_ERR_NOTFOUND)
79 name = fdt_get_name(fdt, offset, NULL);
82 ret = device_bind_driver_to_node(dev, drv_name, name,
91 int at91_clk_of_xlate(struct clk *clk, struct fdtdec_phandle_args *args)
95 if (args->args_count) {
96 debug("Invalid args_count: %d\n", args->args_count);
100 periph = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(clk->dev), "reg",
110 int at91_clk_probe(struct udevice *dev)
112 struct udevice *dev_periph_container, *dev_pmc;
113 struct pmc_platdata *plat = dev_get_platdata(dev);
115 dev_periph_container = dev_get_parent(dev);
116 dev_pmc = dev_get_parent(dev_periph_container);
118 plat->reg_base = (struct at91_pmc *)dev_get_addr_ptr(dev_pmc);