mirror of
https://github.com/AsahiLinux/u-boot
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83d290c56f
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
119 lines
2.7 KiB
C
119 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 <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(at91_pmc) = {
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.name = "at91-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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!dm_fdt_pre_reloc(fdt, 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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