source: SVN/rincon/u-boot/board/eltec/elppc/elppc.c @ 55

Last change on this file since 55 was 55, checked in by Tim Harvey, 2 years ago

rincon: added latest u-boot source

restored form server backup

Signed-off-by: Tim Harvey <tharvey@…>

File size: 4.4 KB
Line 
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#include <netdev.h>
29
30DECLARE_GLOBAL_DATA_PTR;
31
32/* ------------------------------------------------------------------------- */
33
34int checkboard (void)
35{
36        puts ("Board: ELTEC PowerPC\n");
37        return (0);
38}
39
40/* ------------------------------------------------------------------------- */
41
42int checkflash (void)
43{
44        /* TODO */
45        printf ("Test not implemented !\n");
46        return (0);
47}
48
49/* ------------------------------------------------------------------------- */
50
51static unsigned int mpc106_read_cfg_dword (unsigned int reg)
52{
53        unsigned int reg_addr = MPC106_REG | (reg & 0xFFFFFFFC);
54
55        out32r (MPC106_REG_ADDR, reg_addr);
56
57        return (in32r (MPC106_REG_DATA | (reg & 0x3)));
58}
59
60/* ------------------------------------------------------------------------- */
61
62long int dram_size (int board_type)
63{
64        /*
65         * No actual initialisation to do - done when setting up
66         * PICRs MCCRs ME/SARs etc in asm_init.S.
67         */
68
69        register unsigned long i, msar1, mear1, memSize;
70
71#if defined(CFG_MEMTEST)
72        register unsigned long reg;
73
74        printf ("Testing DRAM\n");
75
76        /* write each mem addr with it's address */
77        for (reg = CFG_MEMTEST_START; reg < CFG_MEMTEST_END; reg += 4)
78                *reg = reg;
79
80        for (reg = CFG_MEMTEST_START; reg < CFG_MEMTEST_END; reg += 4) {
81                if (*reg != reg)
82                        return -1;
83        }
84#endif
85
86        /*
87         * Since MPC107 memory controller chip has already been set to
88         * control all memory, just read and interpret its memory boundery register.
89         */
90        memSize = 0;
91        msar1 = mpc106_read_cfg_dword (MPC106_MSAR1);
92        mear1 = mpc106_read_cfg_dword (MPC106_MEAR1);
93        i = mpc106_read_cfg_dword (MPC106_MBER) & 0xf;
94
95        do {
96                if (i & 0x01)                   /* is bank enabled ? */
97                        memSize += (mear1 & 0xff) - (msar1 & 0xff) + 1;
98                msar1 >>= 8;
99                mear1 >>= 8;
100                i >>= 1;
101        } while (i);
102
103        return (memSize * 0x100000);
104}
105
106/* ------------------------------------------------------------------------- */
107
108phys_size_t initdram (int board_type)
109{
110        return dram_size (board_type);
111}
112
113/* ------------------------------------------------------------------------- */
114
115/*
116 * The BAB 911 can be reset by writing bit 0 of the Processor Initialization
117 * Register PI in the MPC 107 (at offset 0x41090 of the Embedded Utilities
118 * Memory Block).
119 */
120int do_reset (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
121{
122        out8 (MPC107_EUMB_PI, 1);
123        return (0);
124}
125
126/* ------------------------------------------------------------------------- */
127
128#if defined(CONFIG_WATCHDOG)
129
130/*
131 * Since the 7xx CPUs don't have an internal watchdog, this function is
132 * board specific.
133 */
134void watchdog_reset (void)
135{
136}
137#endif                                                  /* CONFIG_WATCHDOG */
138
139/* ------------------------------------------------------------------------- */
140
141void after_reloc (ulong dest_addr)
142{
143        /*
144         * Jump to the main U-Boot board init code
145         */
146        board_init_r ((gd_t *)gd, dest_addr);
147}
148
149/* ------------------------------------------------------------------------- */
150
151#ifdef CONFIG_CONSOLE_EXTRA_INFO
152extern GraphicDevice smi;
153
154void video_get_info_str (int line_number, char *info)
155{
156        /* init video info strings for graphic console */
157        switch (line_number) {
158        case 1:
159                sprintf (info, " MPC7xx V%d.%d at %d / %d MHz",
160                                 (get_pvr () >> 8) & 0xFF, get_pvr () & 0xFF, 400, 100);
161                return;
162        case 2:
163                sprintf (info, " ELTEC ELPPC with %ld MB DRAM and %ld MB FLASH",
164                                 dram_size (0) / 0x100000, flash_init () / 0x100000);
165                return;
166        case 3:
167                sprintf (info, " %s", smi.modeIdent);
168                return;
169        }
170
171        /* no more info lines */
172        *info = 0;
173        return;
174}
175#endif
176
177int board_eth_init(bd_t *bis)
178{
179        return pci_eth_init(bis);
180}
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