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bootloader/u-boot_2015_04/board/sbc405/sbc405.c 2.03 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * (C) Copyright 2001
   *
   * SPDX-License-Identifier:	GPL-2.0+
   */
  
  #include <common.h>
  #include <asm/processor.h>
  #include <command.h>
  #include <malloc.h>
  #include <spd_sdram.h>
  
  
  int board_early_init_f (void)
  {
  	/*
  	 * IRQ 0-15  405GP internally generated; active high; level sensitive
  	 * IRQ 16    405GP internally generated; active low; level sensitive
  	 * IRQ 17-24 RESERVED
  	 * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
  	 * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
  	 * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
  	 * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
  	 * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
  	 * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
  	 * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
  	 */
  	mtdcr(UIC0SR, 0xFFFFFFFF);       /* clear all ints */
  	mtdcr(UIC0ER, 0x00000000);       /* disable all ints */
  	mtdcr(UIC0CR, 0x00000000);       /* set all to be non-critical*/
  	mtdcr(UIC0PR, 0xFFFFFF81);       /* set int polarities */
  	mtdcr(UIC0TR, 0x10000000);       /* set int trigger levels */
  	mtdcr(UIC0VCR, 0x00000001);      /* set vect base=0,INT0 highest priority*/
  	mtdcr(UIC0SR, 0xFFFFFFFF);       /* clear all ints */
  
  	/*
  	 * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
  	 */
  	mtebc (EBC0_CFG, 0xa8400000);
  
  	return 0;
  }
  
  
  /* ------------------------------------------------------------------------- */
  
  int misc_init_f (void)
  {
  	return 0;  /* dummy implementation */
  }
  
  
  int misc_init_r (void)
  {
  	return (0);
  }
  
  
  /*
   * Check Board Identity:
   */
  
  int checkboard (void)
  {
  	char str[64];
  	int i = getenv_f("serial#", str, sizeof(str));
  
  	puts ("Board: ");
  
  	if (i == -1) {
  		puts ("### No HW ID - assuming sbc405");
  	} else {
  		puts(str);
  	}
  
  	putc ('
  ');
  
  	return 0;
  }
  
  /* ------------------------------------------------------------------------- */
  
  int testdram (void)
  {
  	/* TODO: XXX XXX XXX */
  	printf ("test: 64 MB - ok
  ");
  
  	return (0);
  }
  
  /* ------------------------------------------------------------------------- */