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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>
70 lines
1.5 KiB
C
70 lines
1.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2007-2012
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* Allwinner Technology Co., Ltd. <www.allwinnertech.com>
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* Tom Cubie <tangliang@allwinnertech.com>
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*
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* (C) Copyright 2013 Luke Kenneth Casson Leighton <lkcl@lkcl.net>
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/gpio.h>
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#include <asm/arch/prcm.h>
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#include <asm/arch/gtbus.h>
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#include <asm/arch/sys_proto.h>
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__weak void clock_init_sec(void)
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{
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}
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__weak void gtbus_init(void)
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{
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}
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int clock_init(void)
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{
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#ifdef CONFIG_SPL_BUILD
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clock_init_safe();
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gtbus_init();
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#endif
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clock_init_uart();
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clock_init_sec();
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return 0;
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}
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/* These functions are shared between various SoCs so put them here. */
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#if defined CONFIG_SUNXI_GEN_SUN6I && !defined CONFIG_MACH_SUN9I
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int clock_twi_onoff(int port, int state)
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{
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struct sunxi_ccm_reg *const ccm =
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(struct sunxi_ccm_reg *)SUNXI_CCM_BASE;
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if (port == 5) {
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if (state)
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prcm_apb0_enable(
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PRCM_APB0_GATE_PIO | PRCM_APB0_GATE_I2C);
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else
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prcm_apb0_disable(
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PRCM_APB0_GATE_PIO | PRCM_APB0_GATE_I2C);
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return 0;
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}
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/* set the apb clock gate and reset for twi */
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if (state) {
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setbits_le32(&ccm->apb2_gate,
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CLK_GATE_OPEN << (APB2_GATE_TWI_SHIFT + port));
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setbits_le32(&ccm->apb2_reset_cfg,
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1 << (APB2_RESET_TWI_SHIFT + port));
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} else {
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clrbits_le32(&ccm->apb2_reset_cfg,
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1 << (APB2_RESET_TWI_SHIFT + port));
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clrbits_le32(&ccm->apb2_gate,
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CLK_GATE_OPEN << (APB2_GATE_TWI_SHIFT + port));
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}
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return 0;
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}
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#endif
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