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Diffstat (limited to 'board/esd/hub405/hub405.c')
| -rw-r--r-- | board/esd/hub405/hub405.c | 166 |
1 files changed, 166 insertions, 0 deletions
diff --git a/board/esd/hub405/hub405.c b/board/esd/hub405/hub405.c new file mode 100644 index 0000000..ba8e8e3 --- /dev/null +++ b/board/esd/hub405/hub405.c @@ -0,0 +1,166 @@ +/* + * (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_pre_init (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 |