2 * (C) Copyright 2001-2003
3 * Stefan Roese, esd gmbh germany, stefan.roese@esd-electronics.com
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 #include <asm/processor.h>
30 DECLARE_GLOBAL_DATA_PTR;
32 int board_early_init_f (void)
35 * IRQ 0-15 405GP internally generated; active high; level sensitive
36 * IRQ 16 405GP internally generated; active low; level sensitive
38 * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
39 * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
40 * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
41 * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
42 * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
43 * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
44 * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
46 mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
47 mtdcr(UIC0ER, 0x00000000); /* disable all ints */
48 mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical*/
49 mtdcr(UIC0PR, 0xFFFFFF80); /* set int polarities */
50 mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
51 mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority*/
52 mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
55 * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
57 mtebc (EBC0_CFG, 0xa8400000); /* ebc always driven */
60 * Reset CPLD via GPIO13 (CS4) pin
62 out_be32((void *)GPIO0_OR,
63 in_be32((void *)GPIO0_OR) & ~(0x80000000 >> 13));
64 udelay(1000); /* wait 1ms */
65 out_be32((void *)GPIO0_OR,
66 in_be32((void *)GPIO0_OR) | (0x80000000 >> 13));
67 udelay(1000); /* wait 1ms */
72 int misc_init_r (void)
74 /* adjust flash start and offset */
75 gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
76 gd->bd->bi_flashoffset = 0;
83 * Check Board Identity:
89 int i = getenv_r ("serial#", str, sizeof(str));
90 unsigned char trans[16] = {0x0,0x8,0x4,0xc,0x2,0xa,0x6,0xe,
91 0x1,0x9,0x5,0xd,0x3,0xb,0x7,0xf};
92 unsigned char id1, id2, rev;
97 puts ("### No HW ID - assuming DP405");
101 id1 = trans[(~(in_be32((void *)GPIO0_IR) >> 5)) & 0x0000000f];
102 id2 = trans[(~(in_be32((void *)GPIO0_IR) >> 9)) & 0x0000000f];
104 rev = in_8((void *)0xf0001000);
105 if (rev & 0x10) /* old DP405 compatibility */
106 rev = in_8((void *)0xf0000800);
108 switch (rev & 0xc0) {
113 puts(" (HW=DP405/CO");
119 printf(", ID=0x%1X%1X, PLD=0x%02X", id2, id1, rev & 0x0f);
121 if ((rev & 0xc0) == 0xc0) {
123 in_be32((void *)GPIO0_IR) & 0x40000000 ? "off" : "on");