mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-11 21:56:21 +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>
80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <debug_uart.h>
|
|
#include <linux/io.h>
|
|
#include <linux/serial_reg.h>
|
|
|
|
#include "../soc-info.h"
|
|
#include "debug-uart.h"
|
|
|
|
#define UNIPHIER_UART_TX 0x00
|
|
#define UNIPHIER_UART_LCR_MCR 0x10
|
|
#define UNIPHIER_UART_LSR 0x14
|
|
#define UNIPHIER_UART_LDR 0x24
|
|
|
|
static void _debug_uart_putc(int c)
|
|
{
|
|
void __iomem *base = (void __iomem *)CONFIG_DEBUG_UART_BASE;
|
|
|
|
while (!(readl(base + UNIPHIER_UART_LSR) & UART_LSR_THRE))
|
|
;
|
|
|
|
writel(c, base + UNIPHIER_UART_TX);
|
|
}
|
|
|
|
void _debug_uart_init(void)
|
|
{
|
|
void __iomem *base = (void __iomem *)CONFIG_DEBUG_UART_BASE;
|
|
unsigned int divisor;
|
|
|
|
switch (uniphier_get_soc_id()) {
|
|
#if defined(CONFIG_ARCH_UNIPHIER_LD4)
|
|
case UNIPHIER_LD4_ID:
|
|
divisor = uniphier_ld4_debug_uart_init();
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_ARCH_UNIPHIER_PRO4)
|
|
case UNIPHIER_PRO4_ID:
|
|
divisor = uniphier_pro4_debug_uart_init();
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_ARCH_UNIPHIER_SLD8)
|
|
case UNIPHIER_SLD8_ID:
|
|
divisor = uniphier_sld8_debug_uart_init();
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_ARCH_UNIPHIER_PRO5)
|
|
case UNIPHIER_PRO5_ID:
|
|
divisor = uniphier_pro5_debug_uart_init();
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_ARCH_UNIPHIER_PXS2)
|
|
case UNIPHIER_PXS2_ID:
|
|
divisor = uniphier_pxs2_debug_uart_init();
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_ARCH_UNIPHIER_LD6B)
|
|
case UNIPHIER_LD6B_ID:
|
|
divisor = uniphier_ld6b_debug_uart_init();
|
|
break;
|
|
#endif
|
|
#if defined(CONFIG_ARCH_UNIPHIER_LD11) || defined(CONFIG_ARCH_UNIPHIER_LD20)
|
|
case UNIPHIER_LD11_ID:
|
|
case UNIPHIER_LD20_ID:
|
|
divisor = uniphier_ld20_debug_uart_init();
|
|
break;
|
|
#endif
|
|
default:
|
|
return;
|
|
}
|
|
|
|
writel(UART_LCR_WLEN8 << 8, base + UNIPHIER_UART_LCR_MCR);
|
|
|
|
writel(divisor, base + UNIPHIER_UART_LDR);
|
|
}
|
|
DEBUG_UART_FUNCS
|