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![Tom Rini](/assets/img/avatar_default.png)
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>
38 lines
1021 B
C
38 lines
1021 B
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2018 Synopsys, Inc. All rights reserved.
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* Author: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
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*/
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#ifndef __BOARD_CLK_LIB_H
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#define __BOARD_CLK_LIB_H
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#include <common.h>
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enum clk_ctl_ops {
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CLK_SET = BIT(0), /* set frequency */
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CLK_GET = BIT(1), /* get frequency */
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CLK_ON = BIT(2), /* enable clock */
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CLK_OFF = BIT(3), /* disable clock */
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CLK_PRINT = BIT(4), /* print frequency */
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CLK_MHZ = BIT(5) /* all values in MHZ instead of HZ */
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};
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/*
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* Depending on the clk_ctl_ops enable / disable /
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* set clock rate from 'rate' argument / read clock to 'rate' argument /
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* print clock rate. If CLK_MHZ flag set in clk_ctl_ops 'rate' is in MHz,
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* otherwise - in Hz.
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*
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* This function expects "clk-fmeas" node in device tree:
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* / {
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* clk-fmeas {
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* clocks = <&cpu_pll>, <&sys_pll>;
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* clock-names = "cpu-pll", "sys-pll";
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* };
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* };
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*/
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int soc_clk_ctl(const char *name, ulong *rate, enum clk_ctl_ops ctl);
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#endif /* __BOARD_CLK_LIB_H */
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