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Viewing changes to roms/u-boot/board/freescale/m5208evbe/m5208evbe.c

  • Committer: Phil Dennis-Jordan
  • Date: 2017-07-21 08:03:43 UTC
  • mfrom: (1.1.1)
  • Revision ID: phil@philjordan.eu-20170721080343-2yr2vdj7713czahv
New upstream release 2.9.0.

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roms/u-boot/board/freescale/m5208evbe/m5208evbe.c
 
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/*
 
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 * (C) Copyright 2000-2003
 
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 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 
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 *
 
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 * Copyright (C) 2004-2008, 2012 Freescale Semiconductor, Inc.
 
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 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
 
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 *
 
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 * SPDX-License-Identifier:     GPL-2.0+
 
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 */
 
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#include <config.h>
 
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#include <common.h>
 
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#include <asm/immap.h>
 
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#include <asm/io.h>
 
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DECLARE_GLOBAL_DATA_PTR;
 
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int checkboard(void)
 
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{
 
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        puts("Board: ");
 
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        puts("Freescale M5208EVBe\n");
 
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        return 0;
 
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};
 
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phys_size_t initdram(int board_type)
 
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{
 
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        sdram_t *sdram = (sdram_t *)(MMAP_SDRAM);
 
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        u32 dramsize, i;
 
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        dramsize = CONFIG_SYS_SDRAM_SIZE * 0x100000;
 
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        for (i = 0x13; i < 0x20; i++) {
 
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                if (dramsize == (1 << i))
 
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                        break;
 
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        }
 
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        i--;
 
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        out_be32(&sdram->cs0, CONFIG_SYS_SDRAM_BASE | i);
 
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#ifdef CONFIG_SYS_SDRAM_BASE1
 
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        out_be32(&sdram->cs1, CONFIG_SYS_SDRAM_BASE | i);
 
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#endif
 
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        out_be32(&sdram->cfg1, CONFIG_SYS_SDRAM_CFG1);
 
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        out_be32(&sdram->cfg2, CONFIG_SYS_SDRAM_CFG2);
 
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        udelay(500);
 
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        /* Issue PALL */
 
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        out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
 
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        asm("nop");
 
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        /* Perform two refresh cycles */
 
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        out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
 
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        out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
 
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        asm("nop");
 
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        /* Issue LEMR */
 
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        out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE);
 
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        asm("nop");
 
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        out_be32(&sdram->mode, CONFIG_SYS_SDRAM_EMOD);
 
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        asm("nop");
 
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        out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
 
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        asm("nop");
 
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        out_be32(&sdram->ctrl,
 
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                (CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000F00);
 
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        asm("nop");
 
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        udelay(100);
 
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        return dramsize;
 
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};
 
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int testdram(void)
 
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{
 
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        /* TODO: XXX XXX XXX */
 
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        printf("DRAM test not implemented!\n");
 
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        return (0);
 
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}