1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 *
4 * (C) Copyright 2000-2003
5 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6 *
7 * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
8 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
9 */
10
11 #include <common.h>
12 #include <watchdog.h>
13 #include <command.h>
14 #include <netdev.h>
15
16 #include <asm/immap.h>
17 #include <asm/io.h>
18
19 DECLARE_GLOBAL_DATA_PTR;
20
do_reset(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])21 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
22 {
23 gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR);
24
25 out_be16(&gptmr->pre, 10);
26 out_be16(&gptmr->cnt, 1);
27
28 /* enable watchdog, set timeout to 0 and wait */
29 out_8(&gptmr->mode, GPT_TMS_SGPIO);
30 out_8(&gptmr->ctrl, GPT_CTRL_WDEN | GPT_CTRL_CE);
31
32 /* we don't return! */
33 return 1;
34 };
35
36 #if defined(CONFIG_DISPLAY_CPUINFO)
print_cpuinfo(void)37 int print_cpuinfo(void)
38 {
39 siu_t *siu = (siu_t *) MMAP_SIU;
40 u16 id = 0;
41
42 puts("CPU: ");
43
44 switch ((in_be32(&siu->jtagid) & 0x000FF000) >> 12) {
45 case 0x0C:
46 id = 5485;
47 break;
48 case 0x0D:
49 id = 5484;
50 break;
51 case 0x0E:
52 id = 5483;
53 break;
54 case 0x0F:
55 id = 5482;
56 break;
57 case 0x10:
58 id = 5481;
59 break;
60 case 0x11:
61 id = 5480;
62 break;
63 case 0x12:
64 id = 5475;
65 break;
66 case 0x13:
67 id = 5474;
68 break;
69 case 0x14:
70 id = 5473;
71 break;
72 case 0x15:
73 id = 5472;
74 break;
75 case 0x16:
76 id = 5471;
77 break;
78 case 0x17:
79 id = 5470;
80 break;
81 }
82
83 if (id) {
84 char buf1[32], buf2[32];
85
86 printf("Freescale MCF%d\n", id);
87 printf(" CPU CLK %s MHz BUS CLK %s MHz\n",
88 strmhz(buf1, gd->cpu_clk),
89 strmhz(buf2, gd->bus_clk));
90 }
91
92 return 0;
93 };
94 #endif /* CONFIG_DISPLAY_CPUINFO */
95
96 #if defined(CONFIG_HW_WATCHDOG)
97 /* Called by macro WATCHDOG_RESET */
hw_watchdog_reset(void)98 void hw_watchdog_reset(void)
99 {
100 gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR);
101
102 out_8(&gptmr->ocpw, 0xa5);
103 }
104
watchdog_disable(void)105 int watchdog_disable(void)
106 {
107 gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR);
108
109 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
110 out_8(&gptmr->mode, 0);
111 out_8(&gptmr->ctrl, 0);
112
113 puts("WATCHDOG:disabled\n");
114
115 return (0);
116 }
117
watchdog_init(void)118 int watchdog_init(void)
119 {
120 gptmr_t *gptmr = (gptmr_t *) (MMAP_GPTMR);
121
122 out_be16(&gptmr->pre, CONFIG_WATCHDOG_TIMEOUT);
123 out_be16(&gptmr->cnt, CONFIG_SYS_TIMER_PRESCALER * 1000);
124
125 out_8(&gptmr->mode, GPT_TMS_SGPIO);
126 out_8(&gptmr->ctrl, GPT_CTRL_CE | GPT_CTRL_WDEN);
127 puts("WATCHDOG:enabled\n");
128
129 return (0);
130 }
131 #endif /* CONFIG_HW_WATCHDOG */
132
133 #if defined(CONFIG_FSLDMAFEC) || defined(CONFIG_MCFFEC)
134 /* Default initializations for MCFFEC controllers. To override,
135 * create a board-specific function called:
136 * int board_eth_init(bd_t *bis)
137 */
138
cpu_eth_init(bd_t * bis)139 int cpu_eth_init(bd_t *bis)
140 {
141 #if defined(CONFIG_FSLDMAFEC)
142 mcdmafec_initialize(bis);
143 #endif
144 #if defined(CONFIG_MCFFEC)
145 mcffec_initialize(bis);
146 #endif
147 return 0;
148 }
149 #endif
150