mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-25 12:33:41 +00:00
120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
/*
|
|
* (C) Copyright 2000-2003
|
|
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
|
|
*
|
|
* Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
|
|
* TsiChung Liew (Tsi-Chung.Liew@freescale.com)
|
|
*
|
|
* See file CREDITS for list of people who contributed to this
|
|
* project.
|
|
*
|
|
* This program is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU General Public License as
|
|
* published by the Free Software Foundation; either version 2 of
|
|
* the License, or (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
|
|
* MA 02111-1307 USA
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <common.h>
|
|
#include <pci.h>
|
|
#include <asm/immap.h>
|
|
#include <asm/io.h>
|
|
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
int checkboard(void)
|
|
{
|
|
puts("Board: ");
|
|
puts("Freescale FireEngine 5475 EVB\n");
|
|
return 0;
|
|
};
|
|
|
|
phys_size_t initdram(int board_type)
|
|
{
|
|
siu_t *siu = (siu_t *) (MMAP_SIU);
|
|
sdram_t *sdram = (sdram_t *)(MMAP_SDRAM);
|
|
u32 dramsize, i;
|
|
#ifdef CONFIG_SYS_DRAMSZ1
|
|
u32 temp;
|
|
#endif
|
|
|
|
out_be32(&siu->drv, CONFIG_SYS_SDRAM_DRVSTRENGTH);
|
|
|
|
dramsize = CONFIG_SYS_DRAMSZ * 0x100000;
|
|
for (i = 0x13; i < 0x20; i++) {
|
|
if (dramsize == (1 << i))
|
|
break;
|
|
}
|
|
i--;
|
|
out_be32(&siu->cs0cfg, CONFIG_SYS_SDRAM_BASE | i);
|
|
|
|
#ifdef CONFIG_SYS_DRAMSZ1
|
|
temp = CONFIG_SYS_DRAMSZ1 * 0x100000;
|
|
for (i = 0x13; i < 0x20; i++) {
|
|
if (temp == (1 << i))
|
|
break;
|
|
}
|
|
i--;
|
|
dramsize += temp;
|
|
out_be32(&siu->cs1cfg, (CONFIG_SYS_SDRAM_BASE + temp) | i);
|
|
#endif
|
|
|
|
out_be32(&sdram->cfg1, CONFIG_SYS_SDRAM_CFG1);
|
|
out_be32(&sdram->cfg2, CONFIG_SYS_SDRAM_CFG2);
|
|
|
|
/* Issue PALL */
|
|
out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
|
|
|
|
/* Issue LEMR */
|
|
out_be32(&sdram->mode, CONFIG_SYS_SDRAM_EMOD);
|
|
out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE | 0x04000000);
|
|
|
|
udelay(500);
|
|
|
|
/* Issue PALL */
|
|
out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 2);
|
|
|
|
/* Perform two refresh cycles */
|
|
out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
|
|
out_be32(&sdram->ctrl, CONFIG_SYS_SDRAM_CTRL | 4);
|
|
|
|
out_be32(&sdram->mode, CONFIG_SYS_SDRAM_MODE);
|
|
|
|
out_be32(&sdram->ctrl,
|
|
(CONFIG_SYS_SDRAM_CTRL & ~0x80000000) | 0x10000F00);
|
|
|
|
udelay(100);
|
|
|
|
return dramsize;
|
|
};
|
|
|
|
int testdram(void)
|
|
{
|
|
/* TODO: XXX XXX XXX */
|
|
printf("DRAM test not implemented!\n");
|
|
|
|
return (0);
|
|
}
|
|
|
|
#if defined(CONFIG_PCI)
|
|
/*
|
|
* Initialize PCI devices, report devices found.
|
|
*/
|
|
static struct pci_controller hose;
|
|
extern void pci_mcf547x_8x_init(struct pci_controller *hose);
|
|
|
|
void pci_init_board(void)
|
|
{
|
|
pci_mcf547x_8x_init(&hose);
|
|
}
|
|
#endif /* CONFIG_PCI */
|