/* * (C) Copyright 2001-2003 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.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 <asm/processor.h> #include <command.h> #include <malloc.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(uicsr, 0xFFFFFFFF); /* clear all ints */ mtdcr(uicer, 0x00000000); /* disable all ints */ mtdcr(uiccr, 0x00000000); /* set all to be non-critical*/ mtdcr(uicpr, 0xFFFFFF9F); /* set int polarities */ mtdcr(uictr, 0x10000000); /* set int trigger levels */ mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority*/ mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */ /* * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us */ mtebc (epcr, 0xa8400000); /* ebc always driven */ return 0; } /* ------------------------------------------------------------------------- */ int misc_init_f (void) { return 0; /* dummy implementation */ } int misc_init_r (void) { volatile unsigned char *duart0_mcr = (unsigned char *)((ulong)DUART0_BA + 4); volatile unsigned char *duart1_mcr = (unsigned char *)((ulong)DUART1_BA + 4); volatile unsigned char *duart2_mcr = (unsigned char *)((ulong)DUART2_BA + 4); volatile unsigned char *duart3_mcr = (unsigned char *)((ulong)DUART3_BA + 4); /* * Reset external DUARTs */ out32(GPIO0_OR, in32(GPIO0_OR) | CFG_DUART_RST); /* set reset to high */ udelay(10); /* wait 10us */ out32(GPIO0_OR, in32(GPIO0_OR) & ~CFG_DUART_RST); /* set reset to low */ udelay(1000); /* wait 1ms */ /* * Enable interrupts in exar duart mcr[3] */ *duart0_mcr = 0x08; *duart1_mcr = 0x08; *duart2_mcr = 0x08; *duart3_mcr = 0x08; /* * Set NAND-FLASH GPIO signals to default */ out32(GPIO0_OR, in32(GPIO0_OR) & ~(CFG_NAND_CLE | CFG_NAND_ALE)); out32(GPIO0_OR, in32(GPIO0_OR) | CFG_NAND_CE); return (0); } /* * Check Board Identity: */ int checkboard (void) { unsigned char str[64]; int i = getenv_r ("serial#", str, sizeof(str)); puts ("Board: "); if (i == -1) { puts ("### No HW ID - assuming HUB405"); } else { puts(str); } putc ('\n'); return 0; } /* ------------------------------------------------------------------------- */ long int initdram (int board_type) { unsigned long val; mtdcr(memcfga, mem_mb0cf); val = mfdcr(memcfgd); #if 0 printf("\nmb0cf=%x\n", val); /* test-only */ printf("strap=%x\n", mfdcr(strap)); /* test-only */ #endif return (4*1024*1024 << ((val & 0x000e0000) >> 17)); } /* ------------------------------------------------------------------------- */ int testdram (void) { /* TODO: XXX XXX XXX */ printf ("test: 16 MB - ok\n"); return (0); } /* ------------------------------------------------------------------------- */ #if (CONFIG_COMMANDS & CFG_CMD_NAND) #include <linux/mtd/nand.h> extern struct nand_chip nand_dev_desc[CFG_MAX_NAND_DEVICE]; void nand_init(void) { nand_probe(CFG_NAND_BASE); if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) { print_size(nand_dev_desc[0].totlen, "\n"); } } #endif