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git.ipfire.org Git - people/ms/u-boot.git/blob - board/esd/hub405/hub405.c
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>
29 DECLARE_GLOBAL_DATA_PTR
;
31 extern void lxt971_no_sleep(void);
33 int board_revision(void)
35 unsigned long osrl_reg
;
36 unsigned long isr1l_reg
;
37 unsigned long tcr_reg
;
41 * Get version of HUB405 board from GPIO's
45 * Setup GPIO pin(s) (IRQ6/GPIO23)
47 osrl_reg
= in32(GPIO0_OSRH
);
48 isr1l_reg
= in32(GPIO0_ISR1H
);
49 tcr_reg
= in32(GPIO0_TCR
);
50 out32(GPIO0_OSRH
, osrl_reg
& ~0x00030000); /* output select */
51 out32(GPIO0_ISR1H
, isr1l_reg
| 0x00030000); /* input select */
52 out32(GPIO0_TCR
, tcr_reg
& ~0x00000100); /* select input */
54 udelay(1000); /* wait some time before reading input */
55 value
= in32(GPIO0_IR
) & 0x00000100; /* get config bits */
58 * Restore GPIO settings
60 out32(GPIO0_OSRH
, osrl_reg
); /* output select */
61 out32(GPIO0_ISR1H
, isr1l_reg
); /* input select */
62 out32(GPIO0_TCR
, tcr_reg
); /* enable output driver for outputs */
64 if (value
& 0x00000100) {
65 /* Revision 1.1 or 1.2 detected */
74 int board_early_init_f (void)
77 * IRQ 0-15 405GP internally generated; active high; level sensitive
78 * IRQ 16 405GP internally generated; active low; level sensitive
80 * IRQ 25 (EXT IRQ 0) CAN0; active low; level sensitive
81 * IRQ 26 (EXT IRQ 1) SER0 ; active low; level sensitive
82 * IRQ 27 (EXT IRQ 2) SER1; active low; level sensitive
83 * IRQ 28 (EXT IRQ 3) FPGA 0; active low; level sensitive
84 * IRQ 29 (EXT IRQ 4) FPGA 1; active low; level sensitive
85 * IRQ 30 (EXT IRQ 5) PCI INTA; active low; level sensitive
86 * IRQ 31 (EXT IRQ 6) COMPACT FLASH; active high; level sensitive
88 mtdcr(uicsr
, 0xFFFFFFFF); /* clear all ints */
89 mtdcr(uicer
, 0x00000000); /* disable all ints */
90 mtdcr(uiccr
, 0x00000000); /* set all to be non-critical*/
91 mtdcr(uicpr
, 0xFFFFFF9F); /* set int polarities */
92 mtdcr(uictr
, 0x10000000); /* set int trigger levels */
93 mtdcr(uicvcr
, 0x00000001); /* set vect base=0,INT0 highest priority*/
94 mtdcr(uicsr
, 0xFFFFFFFF); /* clear all ints */
97 * EBC Configuration Register: set ready timeout to 512 ebc-clks -> ca. 15 us
99 mtebc (epcr
, 0xa8400000); /* ebc always driven */
104 int misc_init_r (void)
106 volatile unsigned char *duart0_mcr
= (unsigned char *)((ulong
)DUART0_BA
+ 4);
107 volatile unsigned char *duart1_mcr
= (unsigned char *)((ulong
)DUART1_BA
+ 4);
108 volatile unsigned char *duart2_mcr
= (unsigned char *)((ulong
)DUART2_BA
+ 4);
109 volatile unsigned char *duart3_mcr
= (unsigned char *)((ulong
)DUART3_BA
+ 4);
110 volatile unsigned char *led_reg
= (unsigned char *)((ulong
)DUART0_BA
+ 0x20);
117 * Enable interrupts in exar duart mcr[3]
125 * Set RS232/RS422 control (RS232 = high on GPIO)
127 val
= in32(GPIO0_OR
);
128 val
&= ~(CONFIG_SYS_UART2_RS232
| CONFIG_SYS_UART3_RS232
| CONFIG_SYS_UART4_RS232
| CONFIG_SYS_UART5_RS232
);
130 str
= getenv("phys0");
131 if (!str
|| (str
&& (str
[0] == '0')))
132 val
|= CONFIG_SYS_UART2_RS232
;
134 str
= getenv("phys1");
135 if (!str
|| (str
&& (str
[0] == '0')))
136 val
|= CONFIG_SYS_UART3_RS232
;
138 str
= getenv("phys2");
139 if (!str
|| (str
&& (str
[0] == '0')))
140 val
|= CONFIG_SYS_UART4_RS232
;
142 str
= getenv("phys3");
143 if (!str
|| (str
&& (str
[0] == '0')))
144 val
|= CONFIG_SYS_UART5_RS232
;
146 out32(GPIO0_OR
, val
);
149 * check board type and setup AP power
151 str
= getenv("bd_type"); /* this is only set on non prototype hardware */
153 if ((strcmp(str
, "swch405") == 0) || ((!strcmp(str
, "hub405") && (gd
->board_type
>= 1)))) {
154 unsigned char led_reg_default
= 0;
155 str
= getenv("ap_pwr");
156 if (!str
|| (str
&& (str
[0] == '1')))
157 led_reg_default
= 0x04 | 0x02 ; /* U2_LED | AP_PWR */
162 for (flashcnt
= 0; flashcnt
< 3; flashcnt
++) {
163 *led_reg
= led_reg_default
; /* LED_A..D off */
164 for (delay
= 0; delay
< 100; delay
++)
166 *led_reg
= led_reg_default
| 0xf0; /* LED_A..D on */
167 for (delay
= 0; delay
< 50; delay
++)
170 *led_reg
= led_reg_default
;
175 * Reset external DUARTs
177 out32(GPIO0_OR
, in32(GPIO0_OR
) | CONFIG_SYS_DUART_RST
); /* set reset to high */
178 udelay(10); /* wait 10us */
179 out32(GPIO0_OR
, in32(GPIO0_OR
) & ~CONFIG_SYS_DUART_RST
); /* set reset to low */
180 udelay(1000); /* wait 1ms */
183 * Store hardware revision in environment for further processing
185 sprintf(hw_rev
, "1.%ld", gd
->board_type
);
186 setenv("hw_rev", hw_rev
);
192 * Check Board Identity:
194 int checkboard (void)
197 int i
= getenv_r ("serial#", str
, sizeof(str
));
202 puts ("### No HW ID - assuming HUB405");
207 if (getenv_r("bd_type", str
, sizeof(str
)) != -1) {
210 puts(" (Missing bd_type!");
213 gd
->board_type
= board_revision();
214 printf(", Rev 1.%ld)\n", gd
->board_type
);
217 * Disable sleep mode in LXT971