blob: 5c70326d50cf16a0549dff87b6df1071b39bebdd [file] [log] [blame]
Dirk Eibachb209a112009-07-17 14:16:40 +02001/*
2 * (C) Copyright 2009
3 * Dirk Eibach, Guntermann & Drunck GmbH, eibach@gdsys.de
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
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.
12 *
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.
17 *
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,
21 * MA 02111-1307 USA
22 */
23
24#include <common.h>
25#include <command.h>
26#include <asm/processor.h>
27#include <asm/io.h>
Stefan Roese09887762010-09-16 14:30:37 +020028#include <asm/ppc4xx-gpio.h>
Dirk Eibachb209a112009-07-17 14:16:40 +020029
30enum {
31 HWTYPE_DLVISION_CPU = 0,
32 HWTYPE_DLVISION_CON = 1,
33};
34
35#define HWREV_100 6
36
37int board_early_init_f(void)
38{
Stefan Roese952e7762009-09-24 09:55:50 +020039 mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
40 mtdcr(UIC0ER, 0x00000000); /* disable all ints */
41 mtdcr(UIC0CR, 0x00000000); /* set all to be non-critical */
42 mtdcr(UIC0PR, 0xFFFFFF80); /* set int polarities */
43 mtdcr(UIC0TR, 0x10000000); /* set int trigger levels */
44 mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest prio */
45 mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
Dirk Eibachb209a112009-07-17 14:16:40 +020046
47 /*
48 * EBC Configuration Register: set ready timeout to 512 ebc-clks
49 * -> ca. 15 us
50 */
Stefan Roesed1c3b272009-09-09 16:25:29 +020051 mtebc(EBC0_CFG, 0xa8400000); /* ebc always driven */
Dirk Eibachb209a112009-07-17 14:16:40 +020052
53 /*
54 * setup io-latches
55 */
56 out_le16((void *)CONFIG_SYS_LATCH_BASE, 0x00f0);
57 out_le16((void *)(CONFIG_SYS_LATCH_BASE + 0x100), 0x0002);
58 out_le16((void *)(CONFIG_SYS_LATCH_BASE + 0x200), 0x0000);
59 return 0;
60}
61
62int misc_init_r(void)
63{
64 /*
65 * set "startup-finished"-gpios
66 */
67 gpio_write_bit(21, 0);
68 gpio_write_bit(22, 1);
69
70 return 0;
71}
72
73/*
74 * Check Board Identity:
75 */
76int checkboard(void)
77{
Wolfgang Denkf0c0b3a2011-05-04 10:32:28 +000078 char buf[64];
79 int i = getenv_f("serial#", buf, sizeof(buf));
Dirk Eibachb209a112009-07-17 14:16:40 +020080 u8 channel2_msr = in_8((void *)CONFIG_UART_BASE + 0x26);
81 u8 channel3_msr = in_8((void *)CONFIG_UART_BASE + 0x36);
82 u8 channel7_msr = in_8((void *)CONFIG_UART_BASE + 0x76);
83 u8 unit_type;
84 u8 local_con;
85 u8 audio;
86 u8 hardware_version;
87
88 printf("Board: ");
89
90 unit_type = (channel2_msr & 0x80) ? 0x01 : 0x00;
91 local_con = (channel2_msr & 0x20) ? 0x01 : 0x00;
92 audio = (channel3_msr & 0x20) ? 0x01 : 0x00;
93 hardware_version =
94 ((channel7_msr & 0x20) ? 0x01 : 0x00)
95 | ((channel7_msr & 0x80) ? 0x02 : 0x00)
96 | ((channel7_msr & 0x40) ? 0x04 : 0x00);
97
98 switch (unit_type) {
99 case HWTYPE_DLVISION_CON:
100 printf("DL-Vision-CON");
101 break;
102
103 case HWTYPE_DLVISION_CPU:
104 printf("DL-Vision-CPU");
105 break;
106
107 default:
108 printf("UnitType %d, unsupported", unit_type);
109 break;
110 }
111
Wolfgang Denkf0c0b3a2011-05-04 10:32:28 +0000112 if (i > 0) {
Dirk Eibachb209a112009-07-17 14:16:40 +0200113 puts(", serial# ");
Wolfgang Denkf0c0b3a2011-05-04 10:32:28 +0000114 puts(buf);
Dirk Eibachb209a112009-07-17 14:16:40 +0200115 }
116 puts("\n ");
117
118 switch (hardware_version) {
119 case HWREV_100:
120 printf("HW-Ver 1.00");
121 break;
122
123 default:
124 printf("HW-Ver %d, unsupported",
125 hardware_version);
126 break;
127 }
128
129 if (local_con)
130 printf(", local console");
131
132 if (audio)
133 printf(", audio support");
134
135 puts("\n");
136
137 return 0;
138}