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/*
* (C) Copyright 2000-2003
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* Copyright (C) 2004-2007 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 <common.h>
#include <pci.h>
#include <asm/immap.h>
DECLARE_GLOBAL_DATA_PTR;
int checkboard(void)
{
puts("Board: ");
puts("Freescale M54455 EVB\n");
return 0;
};
long int initdram(int board_type)
{
volatile sdramc_t *sdram = (volatile sdramc_t *)(MMAP_SDRAM);
volatile gpio_t *gpio = (volatile gpio_t *)(MMAP_GPIO);
u32 dramsize, i;
dramsize = CFG_SDRAM_SIZE * 0x100000 >> 1;
for (i = 0x13; i < 0x20; i++) {
if (dramsize == (1 << i))
break;
}
i--;
gpio->mscr_sdram = 0xAA;
sdram->sdcs0 = (CFG_SDRAM_BASE | i);
sdram->sdcs1 = (CFG_SDRAM_BASE1 | i);
sdram->sdcfg1 = CFG_SDRAM_CFG1;
sdram->sdcfg2 = CFG_SDRAM_CFG2;
/* Issue PALL */
sdram->sdcr = CFG_SDRAM_CTRL | 2;
/* Issue LEMR */
sdram->sdmr = CFG_SDRAM_EMOD | 0x408;
sdram->sdmr = CFG_SDRAM_MODE | 0x300;
udelay(500);
/* Issue PALL */
sdram->sdcr = CFG_SDRAM_CTRL | 2;
/* Perform two refresh cycles */
sdram->sdcr = CFG_SDRAM_CTRL | 4;
sdram->sdcr = CFG_SDRAM_CTRL | 4;
sdram->sdmr = CFG_SDRAM_MODE | 0x200;
sdram->sdcr = (CFG_SDRAM_CTRL & ~0x80000000) | 0x10000c00;
udelay(100);
return (dramsize << 1);
};
int testdram(void)
{
/* TODO: XXX XXX XXX */
printf("DRAM test not implemented!\n");
return (0);
}
#if defined(CONFIG_CMD_IDE)
#include <ata.h>
int ide_preinit(void)
{
volatile gpio_t *gpio = (gpio_t *) MMAP_GPIO;
gpio->par_fec |= (gpio->par_fec & GPIO_PAR_FEC_FEC1_MASK) | 0x10;
gpio->par_feci2c |=
(gpio->par_feci2c & 0xF0FF) | (GPIO_PAR_FECI2C_MDC1_ATA_DIOR |
GPIO_PAR_FECI2C_MDIO1_ATA_DIOW);
gpio->par_ata |=
(GPIO_PAR_ATA_BUFEN | GPIO_PAR_ATA_CS1 | GPIO_PAR_ATA_CS0 |
GPIO_PAR_ATA_DA2 | GPIO_PAR_ATA_DA1 | GPIO_PAR_ATA_DA0
| GPIO_PAR_ATA_RESET_RESET | GPIO_PAR_ATA_DMARQ_DMARQ |
GPIO_PAR_ATA_IORDY_IORDY);
gpio->par_pci |=
(GPIO_PAR_PCI_GNT3_ATA_DMACK | GPIO_PAR_PCI_REQ3_ATA_INTRQ);
return (0);
}
void ide_set_reset(int idereset)
{
volatile atac_t *ata = (atac_t *) MMAP_ATA;
long period;
/* t1, t2, t3, t4, t5, t6, t9, tRD, tA */
int piotms[5][9] = {
{70, 165, 60, 30, 50, 5, 20, 0, 35}, /* PIO 0 */
{50, 125, 45, 20, 35, 5, 15, 0, 35}, /* PIO 1 */
{30, 100, 30, 15, 20, 5, 10, 0, 35}, /* PIO 2 */
{30, 80, 30, 10, 20, 5, 10, 0, 35}, /* PIO 3 */
{25, 70, 20, 10, 20, 5, 10, 0, 35}
}; /* PIO 4 */
if (idereset) {
ata->cr = 0; /* control reset */
udelay(10000);
} else {
#define CALC_TIMING(t) (t + period - 1) / period
period = 1000000000 / gd->bus_clk; /* period in ns */
/*ata->ton = CALC_TIMING (180); */
ata->t1 = CALC_TIMING(piotms[2][0]);
ata->t2w = CALC_TIMING(piotms[2][1]);
ata->t2r = CALC_TIMING(piotms[2][1]);
ata->ta = CALC_TIMING(piotms[2][8]);
ata->trd = CALC_TIMING(piotms[2][7]);
ata->t4 = CALC_TIMING(piotms[2][3]);
ata->t9 = CALC_TIMING(piotms[2][6]);
ata->cr = 0x40; /* IORDY enable */
udelay(200000);
ata->cr |= 0x01; /* IORDY enable */
}
}
#endif
#if defined(CONFIG_PCI)
/*
* Initialize PCI devices, report devices found.
*/
static struct pci_controller hose;
extern void pci_mcf5445x_init(struct pci_controller *hose);
void pci_init_board(void)
{
pci_mcf5445x_init(&hose);
}
#endif /* CONFIG_PCI */
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