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/*
* (C) Copyright 2007
* Stefan Roese, DENX Software Engineering, sr@denx.de.
*
* 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 <asm/processor.h>
extern void board_pll_init_f(void);
static void acadia_gpio_init(void)
{
/*
* GPIO0 setup (select GPIO or alternate function)
*/
out32(GPIO0_OSRL, CONFIG_SYS_GPIO0_OSRL);
out32(GPIO0_OSRH, CONFIG_SYS_GPIO0_OSRH); /* output select */
out32(GPIO0_ISR1L, CONFIG_SYS_GPIO0_ISR1L);
out32(GPIO0_ISR1H, CONFIG_SYS_GPIO0_ISR1H); /* input select */
out32(GPIO0_TSRL, CONFIG_SYS_GPIO0_TSRL);
out32(GPIO0_TSRH, CONFIG_SYS_GPIO0_TSRH); /* three-state select */
out32(GPIO0_TCR, CONFIG_SYS_GPIO0_TCR); /* enable output driver for outputs */
/*
* Ultra (405EZ) was nice enough to add another GPIO controller
*/
out32(GPIO1_OSRH, CONFIG_SYS_GPIO1_OSRH); /* output select */
out32(GPIO1_OSRL, CONFIG_SYS_GPIO1_OSRL);
out32(GPIO1_ISR1H, CONFIG_SYS_GPIO1_ISR1H); /* input select */
out32(GPIO1_ISR1L, CONFIG_SYS_GPIO1_ISR1L);
out32(GPIO1_TSRH, CONFIG_SYS_GPIO1_TSRH); /* three-state select */
out32(GPIO1_TSRL, CONFIG_SYS_GPIO1_TSRL);
out32(GPIO1_TCR, CONFIG_SYS_GPIO1_TCR); /* enable output driver for outputs */
}
int board_early_init_f(void)
{
unsigned int reg;
#if !defined(CONFIG_NAND_U_BOOT)
/* don't reinit PLL when booting via I2C bootstrap option */
mfsdr(SDR0_PINSTP, reg);
if (reg != 0xf0000000)
board_pll_init_f();
#endif
acadia_gpio_init();
/* Configure 405EZ for NAND usage */
mtsdr(SDR0_NAND0, SDR_NAND0_NDEN | SDR_NAND0_NDAREN | SDR_NAND0_NDRBEN);
mfsdr(SDR0_ULTRA0, reg);
reg &= ~SDR_ULTRA0_CSN_MASK;
reg |= (SDR_ULTRA0_CSNSEL0 >> CONFIG_SYS_NAND_CS) |
SDR_ULTRA0_NDGPIOBP |
SDR_ULTRA0_EBCRDYEN |
SDR_ULTRA0_NFSRSTEN;
mtsdr(SDR0_ULTRA0, reg);
/* USB Host core needs this bit set */
mfsdr(SDR0_ULTRA1, reg);
mtsdr(SDR0_ULTRA1, reg | SDR_ULTRA1_LEDNENABLE);
mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
mtdcr(UIC0ER, 0x00000000); /* disable all ints */
mtdcr(UIC0CR, 0x00000010);
mtdcr(UIC0PR, 0xFE7FFFF0); /* set int polarities */
mtdcr(UIC0TR, 0x00000010); /* set int trigger levels */
mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
return 0;
}
int misc_init_f(void)
{
/* Set EPLD to take PHY out of reset */
out8(CONFIG_SYS_CPLD_BASE + 0x05, 0x00);
udelay(100000);
return 0;
}
/*
* Check Board Identity:
*/
int checkboard(void)
{
char buf[64];
int i = getenv_f("serial#", buf, sizeof(buf));
u8 rev;
rev = in8(CONFIG_SYS_CPLD_BASE + 0);
printf("Board: Acadia - AMCC PPC405EZ Evaluation Board, Rev. %X", rev);
if (i > 0) {
puts(", serial# ");
puts(buf);
}
putc('\n');
return (0);
}
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