mirror of
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>
79 lines
1.4 KiB
C
79 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2018 Xilinx, Inc.
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*
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* Michal Simek <michal.simek@xilinx.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 <asm/arch/psu_init_gpl.h>
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#define PSU_MASK_POLL_TIME 1100000
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int __maybe_unused mask_pollonvalue(unsigned long add, u32 mask, u32 value)
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{
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int i = 0;
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while ((__raw_readl(add) & mask) != value) {
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if (i == PSU_MASK_POLL_TIME)
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return 0;
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i++;
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}
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return 1;
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}
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__weak int mask_poll(u32 add, u32 mask)
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{
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int i = 0;
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unsigned long addr = add;
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while (!(__raw_readl(addr) & mask)) {
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if (i == PSU_MASK_POLL_TIME)
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return 0;
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i++;
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}
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return 1;
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}
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__weak u32 mask_read(u32 add, u32 mask)
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{
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unsigned long addr = add;
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return __raw_readl(addr) & mask;
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}
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__weak void mask_delay(u32 delay)
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{
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udelay(delay);
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}
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__weak void psu_mask_write(unsigned long offset, unsigned long mask,
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unsigned long val)
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{
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unsigned long regval = 0;
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regval = readl(offset);
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regval &= ~(mask);
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regval |= (val & mask);
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writel(regval, offset);
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}
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__weak void prog_reg(unsigned long addr, unsigned long mask,
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unsigned long shift, unsigned long value)
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{
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int rdata = 0;
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rdata = readl(addr);
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rdata = rdata & (~mask);
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rdata = rdata | (value << shift);
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writel(rdata, addr);
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}
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__weak int psu_init(void)
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{
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/*
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* This function is overridden by the one in
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* board/xilinx/zynqmp/(platform)/psu_init_gpl.c, if it exists.
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*/
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return -1;
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}
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