2 * (C) Copyright 2005-2007
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>
30 DECLARE_GLOBAL_DATA_PTR;
32 extern void lxt971_no_sleep(void);
34 int board_early_init_f (void)
37 * IRQ 0-15 405GP internally generated; active high; level sensitive
38 * IRQ 16 405GP internally generated; active low; level sensitive
40 * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
41 * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
42 * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
43 * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
44 * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
45 * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
46 * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
48 mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
49 mtdcr(UIC0ER, 0x00000000); /* disable all ints */
50 mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical*/
51 mtdcr(UIC0PR, 0xFFFFFF80); /* set int polarities */
52 mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
53 mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority*/
54 mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
57 * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
59 mtebc (EBC0_CFG, 0xa8400000); /* ebc always driven */
62 * Reset CPLD via GPIO12 (CS3) pin
64 out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) & ~CONFIG_SYS_PLD_RESET);
65 udelay(1000); /* wait 1ms */
66 out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) | CONFIG_SYS_PLD_RESET);
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;
79 * Setup and enable EEPROM write protection
81 out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) | CONFIG_SYS_EEPROM_WP);
88 * Check Board Identity:
90 #define LED_REG (CONFIG_SYS_PLD_BASE + 0x1000)
99 if (getenv_r("serial#", str, sizeof(str)) == -1) {
100 puts ("### No HW ID - assuming CMS700");
105 printf(" (PLD-Version=%02d)\n",
106 in_8((void *)(CONFIG_SYS_PLD_BASE + 0x1001)));
111 for (flashcnt = 0; flashcnt < 3; flashcnt++) {
112 out_8((void *)LED_REG, 0x00); /* LEDs off */
113 for (delay = 0; delay < 100; delay++)
115 out_8((void *)LED_REG, 0x0f); /* LEDs on */
116 for (delay = 0; delay < 50; delay++)
119 out_8((void *)LED_REG, 0x70);
124 /* ------------------------------------------------------------------------- */
126 #if defined(CONFIG_SYS_EEPROM_WREN)
127 /* Input: <dev_addr> I2C address of EEPROM device to enable.
128 * <state> -1: deliver current state
131 * Returns: -1: wrong device address
132 * 0: dis-/en- able done
133 * 0/1: current state if <state> was -1.
135 int eeprom_write_enable (unsigned dev_addr, int state)
137 if (CONFIG_SYS_I2C_EEPROM_ADDR != dev_addr) {
142 /* Enable write access, clear bit GPIO_SINT2. */
143 out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) & ~CONFIG_SYS_EEPROM_WP);
147 /* Disable write access, set bit GPIO_SINT2. */
148 out_be32((void *)GPIO0_OR, in_be32((void *)GPIO0_OR) | CONFIG_SYS_EEPROM_WP);
152 /* Read current status back. */
153 state = (0 == (in_be32((void *)GPIO0_OR) & CONFIG_SYS_EEPROM_WP));
160 int do_eep_wren (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
162 int query = argc == 1;
166 /* Query write access state. */
167 state = eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR, -1);
169 puts ("Query of write access state failed.\n");
171 printf ("Write access for device 0x%0x is %sabled.\n",
172 CONFIG_SYS_I2C_EEPROM_ADDR, state ? "en" : "dis");
176 if ('0' == argv[1][0]) {
177 /* Disable write access. */
178 state = eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR, 0);
180 /* Enable write access. */
181 state = eeprom_write_enable (CONFIG_SYS_I2C_EEPROM_ADDR, 1);
184 puts ("Setup of write access state failed.\n");
191 U_BOOT_CMD(eepwren, 2, 0, do_eep_wren,
192 "Enable / disable / query EEPROM write access",
195 #endif /* #if defined(CONFIG_SYS_EEPROM_WREN) */
197 /* ------------------------------------------------------------------------- */
201 #ifdef CONFIG_LXT971_NO_SLEEP
204 * Disable sleep mode in LXT971