u-boot/arch/arm/mach-uniphier/clk/clk-early-ld4.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Copyright (C) 2011-2014 Panasonic Corporation
 * Copyright (C) 2015-2017 Socionext Inc.
 */

#include <spl.h>
#include <linux/io.h>

#include "../init.h"
#include "../sc-regs.h"

void uniphier_ld4_early_clk_init(void)
{
	u32 tmp;

	/* provide clocks */
	tmp = readl(sc_base + SC_CLKCTRL);
	tmp |= SC_CLKCTRL_CEN_SBC | SC_CLKCTRL_CEN_PERI;
	writel(tmp, sc_base + SC_CLKCTRL);
	readl(sc_base + SC_CLKCTRL); /* dummy read */
}
SPDX: Convert all of our single license tags to Linux Kernel style 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> 2018-05-06 21:58:06 +00:00			`// SPDX-License-Identifier: GPL-2.0+`
ARM: uniphier: split out UMC clock enable The clock enable bits for UMC are more SoC-specific than for the other hardware blocks. Separate the UMC clocks and the other clocks for better code reuse across SoCs. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> 2017-01-15 05:59:03 +00:00			`/*`
			`* Copyright (C) 2011-2014 Panasonic Corporation`
			`* Copyright (C) 2015-2017 Socionext Inc.`
			`*/`

			`#include <spl.h>`
			`#include <linux/io.h>`

			`#include "../init.h"`
			`#include "../sc-regs.h"`

ARM: uniphier: remove sLD3 SoC support This SoC is too old. It is difficult to maintain any longer. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> 2017-08-13 00:01:13 +00:00			`void uniphier_ld4_early_clk_init(void)`
ARM: uniphier: split out UMC clock enable The clock enable bits for UMC are more SoC-specific than for the other hardware blocks. Separate the UMC clocks and the other clocks for better code reuse across SoCs. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> 2017-01-15 05:59:03 +00:00			`{`
			`u32 tmp;`

			`/* provide clocks */`
ARM: uniphier: de-couple SC macros into base address and offset The SC_* macros represent the address of SysCtrl registers. For a planned new SoC, its base address will be changed. Turn the SC_* macros into the offset from the base address. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> 2019-07-10 11:07:41 +00:00			`tmp = readl(sc_base + SC_CLKCTRL);`
ARM: uniphier: split out UMC clock enable The clock enable bits for UMC are more SoC-specific than for the other hardware blocks. Separate the UMC clocks and the other clocks for better code reuse across SoCs. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> 2017-01-15 05:59:03 +00:00			`tmp \|= SC_CLKCTRL_CEN_SBC \| SC_CLKCTRL_CEN_PERI;`
ARM: uniphier: de-couple SC macros into base address and offset The SC_* macros represent the address of SysCtrl registers. For a planned new SoC, its base address will be changed. Turn the SC_* macros into the offset from the base address. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> 2019-07-10 11:07:41 +00:00			`writel(tmp, sc_base + SC_CLKCTRL);`
			`readl(sc_base + SC_CLKCTRL); /* dummy read */`
ARM: uniphier: split out UMC clock enable The clock enable bits for UMC are more SoC-specific than for the other hardware blocks. Separate the UMC clocks and the other clocks for better code reuse across SoCs. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> 2017-01-15 05:59:03 +00:00			`}`