mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-25 12:33:41 +00:00
00aa453ebf
This SoC is too old. It is difficult to maintain any longer. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
80 lines
1.8 KiB
C
80 lines
1.8 KiB
C
/*
|
|
* Copyright (C) 2016 Masahiro Yamada <yamada.masahiro@socionext.com>
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#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
|