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7ebf7443 WD |
1 | /* |
2 | * (C) Copyright 2002 ELTEC Elektronik AG | |
3 | * Frank Gottschling <fgottschling@eltec.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 <mpc106.h> | |
27 | #include <video_fb.h> | |
28 | ||
29 | /* ------------------------------------------------------------------------- */ | |
30 | ||
31 | int checkboard (void) | |
32 | { | |
8bde7f77 WD |
33 | puts ("Board: ELTEC PowerPC\n"); |
34 | return (0); | |
7ebf7443 WD |
35 | } |
36 | ||
37 | /* ------------------------------------------------------------------------- */ | |
38 | ||
39 | int checkflash (void) | |
40 | { | |
8bde7f77 WD |
41 | /* TODO */ |
42 | printf ("Test not implemented !\n"); | |
43 | return (0); | |
7ebf7443 WD |
44 | } |
45 | ||
46 | /* ------------------------------------------------------------------------- */ | |
47 | ||
48 | static unsigned int mpc106_read_cfg_dword (unsigned int reg) | |
49 | { | |
8bde7f77 | 50 | unsigned int reg_addr = MPC106_REG | (reg & 0xFFFFFFFC); |
7ebf7443 | 51 | |
8bde7f77 | 52 | out32r (MPC106_REG_ADDR, reg_addr); |
7ebf7443 | 53 | |
8bde7f77 | 54 | return (in32r (MPC106_REG_DATA | (reg & 0x3))); |
7ebf7443 WD |
55 | } |
56 | ||
57 | /* ------------------------------------------------------------------------- */ | |
58 | ||
59 | long int dram_size (int board_type) | |
60 | { | |
8bde7f77 WD |
61 | /* |
62 | * No actual initialisation to do - done when setting up | |
63 | * PICRs MCCRs ME/SARs etc in asm_init.S. | |
64 | */ | |
7ebf7443 | 65 | |
8bde7f77 | 66 | register unsigned long i, msar1, mear1, memSize; |
7ebf7443 WD |
67 | |
68 | #if defined(CFG_MEMTEST) | |
8bde7f77 | 69 | register unsigned long reg; |
7ebf7443 | 70 | |
8bde7f77 | 71 | printf ("Testing DRAM\n"); |
7ebf7443 | 72 | |
8bde7f77 WD |
73 | /* write each mem addr with it's address */ |
74 | for (reg = CFG_MEMTEST_START; reg < CFG_MEMTEST_END; reg += 4) | |
75 | *reg = reg; | |
7ebf7443 | 76 | |
8bde7f77 WD |
77 | for (reg = CFG_MEMTEST_START; reg < CFG_MEMTEST_END; reg += 4) { |
78 | if (*reg != reg) | |
79 | return -1; | |
80 | } | |
7ebf7443 WD |
81 | #endif |
82 | ||
8bde7f77 WD |
83 | /* |
84 | * Since MPC107 memory controller chip has already been set to | |
85 | * control all memory, just read and interpret its memory boundery register. | |
86 | */ | |
87 | memSize = 0; | |
88 | msar1 = mpc106_read_cfg_dword (MPC106_MSAR1); | |
89 | mear1 = mpc106_read_cfg_dword (MPC106_MEAR1); | |
90 | i = mpc106_read_cfg_dword (MPC106_MBER) & 0xf; | |
91 | ||
92 | do { | |
93 | if (i & 0x01) /* is bank enabled ? */ | |
94 | memSize += (mear1 & 0xff) - (msar1 & 0xff) + 1; | |
95 | msar1 >>= 8; | |
96 | mear1 >>= 8; | |
97 | i >>= 1; | |
98 | } while (i); | |
99 | ||
100 | return (memSize * 0x100000); | |
7ebf7443 | 101 | } |
8bde7f77 | 102 | |
7ebf7443 WD |
103 | /* ------------------------------------------------------------------------- */ |
104 | ||
8bde7f77 | 105 | long int initdram (int board_type) |
7ebf7443 | 106 | { |
8bde7f77 | 107 | return dram_size (board_type); |
7ebf7443 WD |
108 | } |
109 | ||
110 | /* ------------------------------------------------------------------------- */ | |
111 | ||
112 | /* | |
113 | * The BAB 911 can be reset by writing bit 0 of the Processor Initialization | |
114 | * Register PI in the MPC 107 (at offset 0x41090 of the Embedded Utilities | |
115 | * Memory Block). | |
116 | */ | |
8bde7f77 | 117 | int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) |
7ebf7443 | 118 | { |
8bde7f77 WD |
119 | out8 (MPC107_EUMB_PI, 1); |
120 | return (0); | |
7ebf7443 WD |
121 | } |
122 | ||
123 | /* ------------------------------------------------------------------------- */ | |
124 | ||
125 | #if defined(CONFIG_WATCHDOG) | |
126 | ||
127 | /* | |
128 | * Since the 7xx CPUs don't have an internal watchdog, this function is | |
129 | * board specific. | |
130 | */ | |
8bde7f77 | 131 | void watchdog_reset (void) |
7ebf7443 WD |
132 | { |
133 | } | |
8bde7f77 | 134 | #endif /* CONFIG_WATCHDOG */ |
7ebf7443 WD |
135 | |
136 | /* ------------------------------------------------------------------------- */ | |
137 | ||
138 | void after_reloc (ulong dest_addr) | |
139 | { | |
8bde7f77 | 140 | DECLARE_GLOBAL_DATA_PTR; |
7ebf7443 | 141 | |
8bde7f77 WD |
142 | /* |
143 | * Jump to the main U-Boot board init code | |
144 | */ | |
145 | board_init_r (gd, dest_addr); | |
7ebf7443 WD |
146 | } |
147 | ||
148 | /* ------------------------------------------------------------------------- */ | |
149 | ||
150 | #ifdef CONFIG_CONSOLE_EXTRA_INFO | |
151 | extern GraphicDevice smi; | |
152 | ||
153 | void video_get_info_str (int line_number, char *info) | |
154 | { | |
8bde7f77 WD |
155 | /* init video info strings for graphic console */ |
156 | switch (line_number) { | |
157 | case 1: | |
158 | sprintf (info, " MPC7xx V%d.%d at %d / %d MHz", | |
159 | (get_pvr () >> 8) & 0xFF, get_pvr () & 0xFF, 400, 100); | |
160 | return; | |
161 | case 2: | |
162 | sprintf (info, " ELTEC ELPPC with %ld MB DRAM and %ld MB FLASH", | |
163 | dram_size (0) / 0x100000, flash_init () / 0x100000); | |
164 | return; | |
165 | case 3: | |
166 | sprintf (info, " %s", smi.modeIdent); | |
167 | return; | |
168 | } | |
169 | ||
170 | /* no more info lines */ | |
171 | *info = 0; | |
172 | return; | |
7ebf7443 WD |
173 | } |
174 | #endif |