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b209a114 DE |
1 | /* |
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> | |
09887762 | 28 | #include <asm/ppc4xx-gpio.h> |
b209a114 DE |
29 | |
30 | enum { | |
31 | HWTYPE_DLVISION_CPU = 0, | |
32 | HWTYPE_DLVISION_CON = 1, | |
33 | }; | |
34 | ||
35 | #define HWREV_100 6 | |
36 | ||
37 | int board_early_init_f(void) | |
38 | { | |
952e7760 SR |
39 | 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 */ | |
b209a114 DE |
46 | |
47 | /* | |
48 | * EBC Configuration Register: set ready timeout to 512 ebc-clks | |
49 | * -> ca. 15 us | |
50 | */ | |
d1c3b275 | 51 | mtebc(EBC0_CFG, 0xa8400000); /* ebc always driven */ |
b209a114 DE |
52 | |
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 | ||
62 | int 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 | */ | |
76 | int checkboard(void) | |
77 | { | |
f0c0b3a9 WD |
78 | char buf[64]; |
79 | int i = getenv_f("serial#", buf, sizeof(buf)); | |
b209a114 DE |
80 | 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 | ||
f0c0b3a9 | 112 | if (i > 0) { |
b209a114 | 113 | puts(", serial# "); |
f0c0b3a9 | 114 | puts(buf); |
b209a114 DE |
115 | } |
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 | } |