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https://github.com/AsahiLinux/u-boot
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9e5935c04e
The patch is referred to at91 clock driver of Linux, to make the clock node descriptions in DT aligned with the Linux's. Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com> Reviewed-by: Simon Glass <sjg@chromium.org>
71 lines
1.3 KiB
C
71 lines
1.3 KiB
C
/*
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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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* SPDX-License-Identifier: GPL-2.0+
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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/device.h>
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#include <dm/lists.h>
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#include <dm/root.h>
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#include "pmc.h"
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DECLARE_GLOBAL_DATA_PTR;
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static int at91_pmc_bind(struct udevice *dev)
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{
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return dm_scan_fdt_node(dev, gd->fdt_blob, dev->of_offset, false);
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}
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static const struct udevice_id at91_pmc_match[] = {
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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-core",
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.id = UCLASS_CLK,
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.of_match = at91_pmc_match,
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.bind = at91_pmc_bind,
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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 *)dev_get_addr_ptr(dev);
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return 0;
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}
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int at91_pmc_clk_node_bind(struct udevice *dev)
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{
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const void *fdt = gd->fdt_blob;
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int offset = dev->of_offset;
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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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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, "clk", name,
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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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U_BOOT_DRIVER(clk_generic) = {
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.id = UCLASS_CLK,
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.name = "clk",
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};
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