text: // SPDX-License-Identifier: GPL-2.0
  /*
   * Copyright (C) 2020 MediaTek Inc.
   *
   * Author:  Weijie Gao <weijie.gao@mediatek.com>
   */
  
  #include <asm/io.h>
  #include <asm/addrspace.h>
  #include "mt7620.h"
  
  void board_debug_uart_init(void)
  {
  	void __iomem *base = ioremap_nocache(SYSCTL_BASE, SYSCTL_SIZE);
  
  #if CONFIG_DEBUG_UART_BASE == 0xb0000500 /* KSEG1ADDR(UARTFULL_BASE) */
  	clrsetbits_32(base + SYSCTL_GPIOMODE_REG, UARTF_SHARE_MODE_M,
  		      UARTF_MODE_UARTF_GPIO << UARTF_SHARE_MODE_S);
  #else
  	clrbits_32(base + SYSCTL_GPIOMODE_REG, UARTL_GPIO_MODE);
  #endif
  }
  
  void mtmips_spl_serial_init(void)
  {
  #ifdef CONFIG_SPL_SERIAL_SUPPORT
  	void __iomem *base = ioremap_nocache(SYSCTL_BASE, SYSCTL_SIZE);
  
  #if CONFIG_CONS_INDEX == 1
  	clrbits_32(base + SYSCTL_GPIOMODE_REG, UARTL_GPIO_MODE);
  #elif CONFIG_CONS_INDEX == 2
  	clrsetbits_32(base + SYSCTL_GPIOMODE_REG, UARTF_SHARE_MODE_M,
  		      UARTF_MODE_UARTF_GPIO << UARTF_SHARE_MODE_S);
  #endif
  #endif /* CONFIG_SPL_SERIAL_SUPPORT */
  }
  