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https://github.com/brain-hackers/u-boot-brain
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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>
33 lines
862 B
C
33 lines
862 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Exynos PLL helper functions for clock drivers.
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* Copyright (C) 2016 Samsung Electronics
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* Thomas Abraham <thomas.ab@samsung.com>
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <div64.h>
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#define PLL145X_MDIV_SHIFT 16
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#define PLL145X_MDIV_MASK 0x3ff
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#define PLL145X_PDIV_SHIFT 8
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#define PLL145X_PDIV_MASK 0x3f
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#define PLL145X_SDIV_SHIFT 0
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#define PLL145X_SDIV_MASK 0x7
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unsigned long pll145x_get_rate(unsigned int *con1, unsigned long fin_freq)
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{
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unsigned long pll_con1 = readl(con1);
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unsigned long mdiv, sdiv, pdiv;
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uint64_t fvco = fin_freq;
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mdiv = (pll_con1 >> PLL145X_MDIV_SHIFT) & PLL145X_MDIV_MASK;
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pdiv = (pll_con1 >> PLL145X_PDIV_SHIFT) & PLL145X_PDIV_MASK;
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sdiv = (pll_con1 >> PLL145X_SDIV_SHIFT) & PLL145X_SDIV_MASK;
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fvco *= mdiv;
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do_div(fvco, (pdiv << sdiv));
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return (unsigned long)fvco;
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}
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