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4a442d31 TL |
1 | /* |
2 | * | |
3 | * (C) Copyright 2000-2003 | |
4 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. | |
5 | * | |
6 | * Copyright (C) 2004-2007 Freescale Semiconductor, Inc. | |
7 | * TsiChung Liew (Tsi-Chung.Liew@freescale.com) | |
8 | * | |
9 | * See file CREDITS for list of people who contributed to this | |
10 | * project. | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or | |
13 | * modify it under the terms of the GNU General Public License as | |
14 | * published by the Free Software Foundation; either version 2 of | |
15 | * the License, or (at your option) any later version. | |
16 | * | |
17 | * This program is distributed in the hope that it will be useful, | |
18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
20 | * GNU General Public License for more details. | |
21 | * | |
22 | * You should have received a copy of the GNU General Public License | |
23 | * along with this program; if not, write to the Free Software | |
24 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, | |
25 | * MA 02111-1307 USA | |
26 | */ | |
27 | ||
28 | #include <common.h> | |
29 | #include <watchdog.h> | |
30 | #include <command.h> | |
89973f8a | 31 | #include <netdev.h> |
4a442d31 TL |
32 | |
33 | #include <asm/immap.h> | |
34 | ||
35 | DECLARE_GLOBAL_DATA_PTR; | |
36 | ||
54841ab5 | 37 | int do_reset(cmd_tbl_t * cmdtp, bd_t * bd, int flag, int argc, char * const argv[]) |
4a442d31 TL |
38 | { |
39 | volatile ccm_t *ccm = (ccm_t *) MMAP_CCM; | |
40 | ||
41 | ccm->rcr = CCM_RCR_SOFTRST; | |
42 | /* we don't return! */ | |
43 | return 0; | |
44 | }; | |
45 | ||
46 | int checkcpu(void) | |
47 | { | |
48 | volatile ccm_t *ccm = (ccm_t *) MMAP_CCM; | |
49 | u16 msk; | |
50 | u16 id = 0; | |
51 | u8 ver; | |
52 | ||
53 | puts("CPU: "); | |
54 | msk = (ccm->cir >> 6); | |
55 | ver = (ccm->cir & 0x003f); | |
56 | switch (msk) { | |
57 | case 0x31: | |
58 | id = 5235; | |
59 | break; | |
60 | } | |
61 | ||
62 | if (id) { | |
08ef89ec WD |
63 | char buf1[32], buf2[32]; |
64 | ||
4a442d31 TL |
65 | printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk, |
66 | ver); | |
08ef89ec | 67 | printf(" CPU CLK %s MHz BUS CLK %s MHz\n", |
1b270844 TL |
68 | strmhz(buf1, gd->cpu_clk), |
69 | strmhz(buf2, gd->bus_clk)); | |
4a442d31 TL |
70 | } |
71 | ||
72 | return 0; | |
73 | }; | |
74 | ||
75 | #if defined(CONFIG_WATCHDOG) | |
76 | /* Called by macro WATCHDOG_RESET */ | |
77 | void watchdog_reset(void) | |
78 | { | |
79 | volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG); | |
80 | ||
81 | wdp->sr = 0x5555; /* Count register */ | |
82 | asm("nop"); | |
83 | wdp->sr = 0xAAAA; /* Count register */ | |
84 | } | |
85 | ||
86 | int watchdog_disable(void) | |
87 | { | |
88 | volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG); | |
89 | ||
90 | /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */ | |
91 | wdp->cr |= WTM_WCR_HALTED; /* halted watchdog timer */ | |
92 | ||
93 | puts("WATCHDOG:disabled\n"); | |
94 | return (0); | |
95 | } | |
96 | ||
97 | int watchdog_init(void) | |
98 | { | |
99 | volatile wdog_t *wdp = (wdog_t *) (MMAP_WDOG); | |
100 | u32 wdog_module = 0; | |
101 | ||
102 | /* set timeout and enable watchdog */ | |
6d0f6bcf | 103 | wdog_module = ((CONFIG_SYS_CLK / CONFIG_SYS_HZ) * CONFIG_WATCHDOG_TIMEOUT); |
4a442d31 TL |
104 | wdog_module |= (wdog_module / 8192); |
105 | wdp->mr = wdog_module; | |
106 | ||
107 | wdp->cr = WTM_WCR_EN; | |
108 | puts("WATCHDOG:enabled\n"); | |
109 | ||
110 | return (0); | |
111 | } | |
112 | #endif /* CONFIG_WATCHDOG */ | |
86882b80 BW |
113 | |
114 | #if defined(CONFIG_MCFFEC) | |
115 | /* Default initializations for MCFFEC controllers. To override, | |
116 | * create a board-specific function called: | |
117 | * int board_eth_init(bd_t *bis) | |
118 | */ | |
119 | ||
86882b80 BW |
120 | int cpu_eth_init(bd_t *bis) |
121 | { | |
122 | return mcffec_initialize(bis); | |
123 | } | |
124 | #endif |