mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
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>
68 lines
1.1 KiB
C
68 lines
1.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2016 Socionext Inc.
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* Author: Masahiro Yamada <yamada.masahiro@socionext.com>
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*/
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#ifndef __DEBUG_H__
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#define __DEBUG_H__
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#include <linux/io.h>
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#include <linux/serial_reg.h>
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#define DEBUG_UART_BASE 0x54006800
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#define UART_SHIFT 2
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#define UNIPHIER_UART_TX 0
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#define UNIPHIER_UART_LSR (5 * 4)
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/* All functions are inline so that they can be called from .secure section. */
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#ifdef DEBUG
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static inline void debug_putc(int c)
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{
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void __iomem *base = (void __iomem *)DEBUG_UART_BASE;
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while (!(readl(base + UNIPHIER_UART_LSR) & UART_LSR_THRE))
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;
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writel(c, base + UNIPHIER_UART_TX);
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}
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static inline void debug_puts(const char *s)
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{
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while (*s) {
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if (*s == '\n')
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debug_putc('\r');
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debug_putc(*s++);
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}
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}
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static inline void debug_puth(unsigned long val)
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{
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int i;
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unsigned char c;
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for (i = 8; i--; ) {
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c = ((val >> (i * 4)) & 0xf);
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c += (c >= 10) ? 'a' - 10 : '0';
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debug_putc(c);
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}
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}
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#else
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static inline void debug_putc(int c)
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{
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}
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static inline void debug_puts(const char *s)
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{
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}
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static inline void debug_puth(unsigned long val)
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{
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}
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#endif
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#endif /* __DEBUG_H__ */
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