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) 2004-2008, 2012 Freescale Semiconductor, Inc.
8 * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
9 */
10
11 #include <common.h>
12 #include <vsprintf.h>
13 #include <watchdog.h>
14 #include <command.h>
15 #include <netdev.h>
16
17 #include <asm/immap.h>
18 #include <asm/io.h>
19
20 DECLARE_GLOBAL_DATA_PTR;
21
do_reset(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])22 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
23 {
24 rcm_t *rcm = (rcm_t *) (MMAP_RCM);
25
26 udelay(1000);
27 setbits_8(&rcm->rcr, RCM_RCR_SOFTRST);
28
29 /* we don't return! */
30 return 0;
31 };
32
33 #if defined(CONFIG_DISPLAY_CPUINFO)
print_cpuinfo(void)34 int print_cpuinfo(void)
35 {
36 ccm_t *ccm = (ccm_t *) MMAP_CCM;
37 u16 msk;
38 u16 id = 0;
39 u8 ver;
40
41 puts("CPU: ");
42 msk = (in_be16(&ccm->cir) >> 6);
43 ver = (in_be16(&ccm->cir) & 0x003f);
44 switch (msk) {
45 #ifdef CONFIG_MCF5301x
46 case 0x78:
47 id = 53010;
48 break;
49 case 0x77:
50 id = 53012;
51 break;
52 case 0x76:
53 id = 53015;
54 break;
55 case 0x74:
56 id = 53011;
57 break;
58 case 0x73:
59 id = 53013;
60 break;
61 #endif
62 #ifdef CONFIG_MCF532x
63 case 0x54:
64 id = 5329;
65 break;
66 case 0x59:
67 id = 5328;
68 break;
69 case 0x61:
70 id = 5327;
71 break;
72 case 0x65:
73 id = 5373;
74 break;
75 case 0x68:
76 id = 53721;
77 break;
78 case 0x69:
79 id = 5372;
80 break;
81 case 0x6B:
82 id = 5372;
83 break;
84 #endif
85 }
86
87 if (id) {
88 char buf1[32], buf2[32];
89
90 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
91 ver);
92 printf(" CPU CLK %s MHz BUS CLK %s MHz\n",
93 strmhz(buf1, gd->cpu_clk),
94 strmhz(buf2, gd->bus_clk));
95 }
96
97 return 0;
98 };
99 #endif /* CONFIG_DISPLAY_CPUINFO */
100
101 #if defined(CONFIG_WATCHDOG)
102 /* Called by macro WATCHDOG_RESET */
watchdog_reset(void)103 void watchdog_reset(void)
104 {
105 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
106
107 /* Count register */
108 out_be16(&wdp->sr, 0x5555);
109 out_be16(&wdp->sr, 0xaaaa);
110 }
111
watchdog_disable(void)112 int watchdog_disable(void)
113 {
114 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
115
116 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
117 /* halted watchdog timer */
118 setbits_be16(&wdp->cr, WTM_WCR_HALTED);
119
120 puts("WATCHDOG:disabled\n");
121 return (0);
122 }
123
watchdog_init(void)124 int watchdog_init(void)
125 {
126 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
127 u32 wdog_module = 0;
128
129 /* set timeout and enable watchdog */
130 wdog_module = ((CONFIG_SYS_CLK / 1000) * CONFIG_WATCHDOG_TIMEOUT);
131 #ifdef CONFIG_M5329
132 out_be16(&wdp->mr, wdog_module / 8192);
133 #else
134 out_be16(&wdp->mr, wdog_module / 4096);
135 #endif
136
137 out_be16(&wdp->cr, WTM_WCR_EN);
138 puts("WATCHDOG:enabled\n");
139
140 return (0);
141 }
142 #endif /* CONFIG_WATCHDOG */
143
144 #if defined(CONFIG_MCFFEC)
145 /* Default initializations for MCFFEC controllers. To override,
146 * create a board-specific function called:
147 * int board_eth_init(bd_t *bis)
148 */
149
cpu_eth_init(bd_t * bis)150 int cpu_eth_init(bd_t *bis)
151 {
152 return mcffec_initialize(bis);
153 }
154 #endif
155