3 * Matthias Fuchs, esd gmbh germany, matthias.fuchs@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>
29 DECLARE_GLOBAL_DATA_PTR
;
31 int board_early_init_f (void)
33 unsigned long cntrl0Reg
;
38 cntrl0Reg
= mfdcr(cntrl0
);
39 mtdcr(cntrl0
, cntrl0Reg
| ((CONFIG_SYS_EEPROM_WP
| CONFIG_SYS_PB_LED
| CONFIG_SYS_SELF_RST
| CONFIG_SYS_INTA_FAKE
) << 5));
41 /* set output pins to high */
42 out32(GPIO0_OR
, CONFIG_SYS_EEPROM_WP
);
43 /* setup for output (LED=off) */
44 out32(GPIO0_TCR
, CONFIG_SYS_EEPROM_WP
| CONFIG_SYS_PB_LED
);
47 * IRQ 0-15 405GP internally generated; active high; level sensitive
48 * IRQ 16 405GP internally generated; active low; level sensitive
50 * IRQ 25 (EXT IRQ 0) PB0; active low; level sensitive
51 * IRQ 26 (EXT IRQ 1) PB1; active low; level sensitive
52 * IRQ 27 (EXT IRQ 2) PCI SLOT 0; active low; level sensitive
53 * IRQ 28 (EXT IRQ 3) PCI SLOT 1; active low; level sensitive
54 * IRQ 29 (EXT IRQ 4) PCI SLOT 2; active low; level sensitive
55 * IRQ 30 (EXT IRQ 5) PCI SLOT 3; active low; level sensitive
56 * IRQ 31 (EXT IRQ 6) unused
58 mtdcr(uicsr
, 0xFFFFFFFF); /* clear all ints */
59 mtdcr(uicer
, 0x00000000); /* disable all ints */
60 mtdcr(uiccr
, 0x00000000); /* set all to be non-critical*/
61 mtdcr(uicpr
, 0xFFFFFF81); /* set int polarities */
63 mtdcr(uictr
, 0x10000000); /* set int trigger levels */
64 mtdcr(uicvcr
, 0x00000001); /* set vect base=0,INT0 highest priority*/
65 mtdcr(uicsr
, 0xFFFFFFFF); /* clear all ints */
70 int misc_init_r (void)
72 unsigned long cntrl0Reg
;
74 /* adjust flash start and offset */
75 gd
->bd
->bi_flashstart
= 0 - gd
->bd
->bi_flashsize
;
76 gd
->bd
->bi_flashoffset
= 0;
79 * Select cts (and not dsr) on uart1
81 cntrl0Reg
= mfdcr(cntrl0
);
82 mtdcr(cntrl0
, cntrl0Reg
| 0x00001000);
89 * Check Board Identity:
94 int i
= getenv_r ("serial#", str
, sizeof(str
));
99 puts ("### No HW ID - assuming CPCI2DP");
104 printf(" (Ver 1.0)");
111 #if defined(CONFIG_SYS_EEPROM_WREN)
112 /* Input: <dev_addr> I2C address of EEPROM device to enable.
113 * <state> -1: deliver current state
116 * Returns: -1: wrong device address
117 * 0: dis-/en- able done
118 * 0/1: current state if <state> was -1.
120 int eeprom_write_enable (unsigned dev_addr
, int state
) {
121 if (CONFIG_SYS_I2C_EEPROM_ADDR
!= dev_addr
) {
126 /* Enable write access, clear bit GPIO_SINT2. */
127 out32(GPIO0_OR
, in32(GPIO0_OR
) & ~CONFIG_SYS_EEPROM_WP
);
131 /* Disable write access, set bit GPIO_SINT2. */
132 out32(GPIO0_OR
, in32(GPIO0_OR
) | CONFIG_SYS_EEPROM_WP
);
136 /* Read current status back. */
137 state
= (0 == (in32(GPIO0_OR
) & CONFIG_SYS_EEPROM_WP
));
145 #if defined(CONFIG_SYS_EEPROM_WREN)
146 int do_eep_wren (cmd_tbl_t
*cmdtp
, int flag
, int argc
, char *argv
[])
148 int query
= argc
== 1;
152 /* Query write access state. */
153 state
= eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR
, -1);
155 puts ("Query of write access state failed.\n");
157 printf ("Write access for device 0x%0x is %sabled.\n",
158 CONFIG_SYS_I2C_EEPROM_ADDR
, state
? "en" : "dis");
162 if ('0' == argv
[1][0]) {
163 /* Disable write access. */
164 state
= eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR
, 0);
166 /* Enable write access. */
167 state
= eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR
, 1);
170 puts ("Setup of write access state failed.\n");
178 eepwren
, 2, 0, do_eep_wren
,
179 "eepwren - Enable / disable / query EEPROM write access\n",
182 #endif /* #if defined(CONFIG_SYS_EEPROM_WREN) */