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 extern void lxt971_no_sleep(void);
34 int board_revision(void)
36 unsigned long osrl_reg;
37 unsigned long isr1l_reg;
38 unsigned long tcr_reg;
42 * Get version of HUB405 board from GPIO's
46 * Setup GPIO pin(s) (IRQ6/GPIO23)
48 osrl_reg = in_be32((void *)GPIO0_OSRH);
49 isr1l_reg = in_be32((void *)GPIO0_ISR1H);
50 tcr_reg = in_be32((void *)GPIO0_TCR);
51 out_be32((void *)GPIO0_OSRH, osrl_reg & ~0x00030000); /* output select */
52 out_be32((void *)GPIO0_ISR1H, isr1l_reg | 0x00030000); /* input select */
53 out_be32((void *)GPIO0_TCR, tcr_reg & ~0x00000100); /* select input */
55 udelay(1000); /* wait some time before reading input */
56 value = in_be32((void *)GPIO0_IR) & 0x00000100; /* get config bits */
59 * Restore GPIO settings
61 out_be32((void *)GPIO0_OSRH, osrl_reg); /* output select */
62 out_be32((void *)GPIO0_ISR1H, isr1l_reg); /* input select */
63 out_be32((void *)GPIO0_TCR, tcr_reg); /* enable output driver for outputs */
65 if (value & 0x00000100) {
66 /* Revision 1.1 or 1.2 detected */
75 int board_early_init_f (void)
78 * IRQ 0-15 405GP internally generated; active high; level sensitive
79 * IRQ 16 405GP internally generated; active low; level sensitive
81 * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
82 * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
83 * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
84 * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
85 * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
86 * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
87 * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
89 mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
90 mtdcr(uicer, 0x00000000); /* disable all ints */
91 mtdcr(uiccr, 0x00000000); /* set all to be non-critical*/
92 mtdcr(uicpr, 0xFFFFFF9F); /* set int polarities */
93 mtdcr(uictr, 0x10000000); /* set int trigger levels */
94 mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority*/
95 mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
98 * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
100 mtebc (epcr, 0xa8400000); /* ebc always driven */
105 #define LED_REG (DUART0_BA + 0x20)
106 int misc_init_r (void)
114 * Enable interrupts in exar duart mcr[3]
116 out_8((void *)(DUART0_BA + 4), 0x08);
117 out_8((void *)(DUART1_BA + 4), 0x08);
118 out_8((void *)(DUART2_BA + 4), 0x08);
119 out_8((void *)(DUART3_BA + 4), 0x08);
122 * Set RS232/RS422 control (RS232 = high on GPIO)
124 val = in_be32((void *)GPIO0_OR);
125 val &= ~(CONFIG_SYS_UART2_RS232 | CONFIG_SYS_UART3_RS232 |
126 CONFIG_SYS_UART4_RS232 | CONFIG_SYS_UART5_RS232);
128 str = getenv("phys0");
129 if (!str || (str && (str[0] == '0')))
130 val |= CONFIG_SYS_UART2_RS232;
132 str = getenv("phys1");
133 if (!str || (str && (str[0] == '0')))
134 val |= CONFIG_SYS_UART3_RS232;
136 str = getenv("phys2");
137 if (!str || (str && (str[0] == '0')))
138 val |= CONFIG_SYS_UART4_RS232;
140 str = getenv("phys3");
141 if (!str || (str && (str[0] == '0')))
142 val |= CONFIG_SYS_UART5_RS232;
144 out_be32((void *)GPIO0_OR, val);
147 * check board type and setup AP power
149 str = getenv("bd_type"); /* this is only set on non prototype hardware */
151 if ((strcmp(str, "swch405") == 0) || ((!strcmp(str, "hub405") && (gd->board_type >= 1)))) {
152 unsigned char led_reg_default = 0;
153 str = getenv("ap_pwr");
154 if (!str || (str && (str[0] == '1')))
155 led_reg_default = 0x04 | 0x02 ; /* U2_LED | AP_PWR */
160 for (flashcnt = 0; flashcnt < 3; flashcnt++) {
162 out_8((void *)LED_REG, led_reg_default);
163 for (delay = 0; delay < 100; delay++)
166 out_8((void *)LED_REG, led_reg_default | 0xf0);
167 for (delay = 0; delay < 50; delay++)
170 out_8((void *)LED_REG, led_reg_default);
175 * Reset external DUARTs
177 out_be32((void *)GPIO0_OR,
178 in_be32((void *)GPIO0_OR) | CONFIG_SYS_DUART_RST); /* set reset to high */
179 udelay(10); /* wait 10us */
180 out_be32((void *)GPIO0_OR,
181 in_be32((void *)GPIO0_OR) & ~CONFIG_SYS_DUART_RST); /* set reset to low */
182 udelay(1000); /* wait 1ms */
185 * Store hardware revision in environment for further processing
187 sprintf(hw_rev, "1.%ld", gd->board_type);
188 setenv("hw_rev", hw_rev);
194 * Check Board Identity:
196 int checkboard (void)
199 int i = getenv_r ("serial#", str, sizeof(str));
204 puts ("### No HW ID - assuming HUB405");
209 if (getenv_r("bd_type", str, sizeof(str)) != -1) {
212 puts(" (Missing bd_type!");
215 gd->board_type = board_revision();
216 printf(", Rev 1.%ld)\n", gd->board_type);
219 * Disable sleep mode in LXT971