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When using OF_PLATDATA, the bind process between devices and drivers is performed trying to match compatible string with driver names. However driver names are not strictly defined, and also there are different names used when declaring a driver with U_BOOT_DRIVER, the name of the symbol used in the linker list and the used in the struct driver_info. In order to make things a bit more clear, rename the drivers names. This will also help for further OF_PLATDATA improvements, such as checking for valid driver names. Signed-off-by: Walter Lozano <walter.lozano@collabora.com> Reviewed-by: Simon Glass <sjg@chromium.org> Add a fix for sandbox of-platdata to avoid using an invalid ANSI colour: Signed-off-by: Simon Glass <sjg@chromium.org>
120 lines
2.7 KiB
C
120 lines
2.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2016 Atmel Corporation
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* Wenyou.Yang <wenyou.yang@atmel.com>
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*/
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#include <common.h>
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#include <clk-uclass.h>
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#include <dm.h>
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#include <log.h>
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#include <dm/lists.h>
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#include <dm/util.h>
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#include "pmc.h"
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DECLARE_GLOBAL_DATA_PTR;
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static const struct udevice_id at91_pmc_match[] = {
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{ .compatible = "atmel,at91rm9200-pmc" },
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{ .compatible = "atmel,at91sam9260-pmc" },
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{ .compatible = "atmel,at91sam9g45-pmc" },
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{ .compatible = "atmel,at91sam9n12-pmc" },
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{ .compatible = "atmel,at91sam9x5-pmc" },
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{ .compatible = "atmel,sama5d3-pmc" },
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{ .compatible = "atmel,sama5d2-pmc" },
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{}
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};
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U_BOOT_DRIVER(atmel_at91rm9200_pmc) = {
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.name = "atmel_at91rm9200_pmc",
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.id = UCLASS_SIMPLE_BUS,
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.of_match = at91_pmc_match,
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};
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/*---------------------------------------------------------*/
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int at91_pmc_core_probe(struct udevice *dev)
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{
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struct pmc_platdata *plat = dev_get_platdata(dev);
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dev = dev_get_parent(dev);
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plat->reg_base = (struct at91_pmc *)devfdt_get_addr_ptr(dev);
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return 0;
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}
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/**
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* at91_clk_sub_device_bind() - for the at91 clock driver
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* Recursively bind its children as clk devices.
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*
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* @return: 0 on success, or negative error code on failure
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*/
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int at91_clk_sub_device_bind(struct udevice *dev, const char *drv_name)
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{
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const void *fdt = gd->fdt_blob;
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int offset = dev_of_offset(dev);
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bool pre_reloc_only = !(gd->flags & GD_FLG_RELOC);
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const char *name;
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int ret;
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for (offset = fdt_first_subnode(fdt, offset);
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offset > 0;
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offset = fdt_next_subnode(fdt, offset)) {
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if (pre_reloc_only &&
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!ofnode_pre_reloc(offset_to_ofnode(offset)))
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continue;
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/*
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* If this node has "compatible" property, this is not
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* a clock sub-node, but a normal device. skip.
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*/
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fdt_get_property(fdt, offset, "compatible", &ret);
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if (ret >= 0)
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continue;
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if (ret != -FDT_ERR_NOTFOUND)
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return ret;
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name = fdt_get_name(fdt, offset, NULL);
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if (!name)
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return -EINVAL;
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ret = device_bind_driver_to_node(dev, drv_name, name,
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offset_to_ofnode(offset), NULL);
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if (ret)
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return ret;
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}
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return 0;
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}
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int at91_clk_of_xlate(struct clk *clk, struct ofnode_phandle_args *args)
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{
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int periph;
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if (args->args_count) {
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debug("Invalid args_count: %d\n", args->args_count);
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return -EINVAL;
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}
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periph = fdtdec_get_uint(gd->fdt_blob, dev_of_offset(clk->dev), "reg",
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-1);
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if (periph < 0)
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return -EINVAL;
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clk->id = periph;
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return 0;
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}
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int at91_clk_probe(struct udevice *dev)
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{
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struct udevice *dev_periph_container, *dev_pmc;
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struct pmc_platdata *plat = dev_get_platdata(dev);
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dev_periph_container = dev_get_parent(dev);
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dev_pmc = dev_get_parent(dev_periph_container);
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plat->reg_base = (struct at91_pmc *)devfdt_get_addr_ptr(dev_pmc);
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return 0;
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}
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