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 <init.h>
13 #include <net.h>
14 #include <vsprintf.h>
15 #include <watchdog.h>
16 #include <command.h>
17 #include <netdev.h>
18 #include <asm/global_data.h>
19 #include <linux/delay.h>
20
21 #include <asm/immap.h>
22 #include <asm/io.h>
23
24 DECLARE_GLOBAL_DATA_PTR;
25
do_reset(struct cmd_tbl * cmdtp,int flag,int argc,char * const argv[])26 int do_reset(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
27 {
28 rcm_t *rcm = (rcm_t *) (MMAP_RCM);
29
30 udelay(1000);
31 setbits_8(&rcm->rcr, RCM_RCR_SOFTRST);
32
33 /* we don't return! */
34 return 0;
35 };
36
37 #if defined(CONFIG_DISPLAY_CPUINFO)
print_cpuinfo(void)38 int print_cpuinfo(void)
39 {
40 ccm_t *ccm = (ccm_t *) MMAP_CCM;
41 u16 msk;
42 u16 id = 0;
43 u8 ver;
44
45 puts("CPU: ");
46 msk = (in_be16(&ccm->cir) >> 6);
47 ver = (in_be16(&ccm->cir) & 0x003f);
48 switch (msk) {
49 #ifdef CONFIG_MCF5301x
50 case 0x78:
51 id = 53010;
52 break;
53 case 0x77:
54 id = 53012;
55 break;
56 case 0x76:
57 id = 53015;
58 break;
59 case 0x74:
60 id = 53011;
61 break;
62 case 0x73:
63 id = 53013;
64 break;
65 #endif
66 #ifdef CONFIG_MCF532x
67 case 0x54:
68 id = 5329;
69 break;
70 case 0x59:
71 id = 5328;
72 break;
73 case 0x61:
74 id = 5327;
75 break;
76 case 0x65:
77 id = 5373;
78 break;
79 case 0x68:
80 id = 53721;
81 break;
82 case 0x69:
83 id = 5372;
84 break;
85 case 0x6B:
86 id = 5372;
87 break;
88 #endif
89 }
90
91 if (id) {
92 char buf1[32], buf2[32];
93
94 printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
95 ver);
96 printf(" CPU CLK %s MHz BUS CLK %s MHz\n",
97 strmhz(buf1, gd->cpu_clk),
98 strmhz(buf2, gd->bus_clk));
99 }
100
101 return 0;
102 };
103 #endif /* CONFIG_DISPLAY_CPUINFO */
104
105 #if defined(CONFIG_WATCHDOG)
106 /* Called by macro WATCHDOG_RESET */
watchdog_reset(void)107 void watchdog_reset(void)
108 {
109 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
110
111 /* Count register */
112 out_be16(&wdp->sr, 0x5555);
113 out_be16(&wdp->sr, 0xaaaa);
114 }
115
watchdog_disable(void)116 int watchdog_disable(void)
117 {
118 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
119
120 /* UserManual, once the wdog is disabled, wdog cannot be re-enabled */
121 /* halted watchdog timer */
122 setbits_be16(&wdp->cr, WTM_WCR_HALTED);
123
124 puts("WATCHDOG:disabled\n");
125 return (0);
126 }
127
watchdog_init(void)128 int watchdog_init(void)
129 {
130 wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
131 u32 wdog_module = 0;
132
133 /* set timeout and enable watchdog */
134 wdog_module = ((CONFIG_SYS_CLK / 1000) * CONFIG_WATCHDOG_TIMEOUT);
135 #ifdef CONFIG_M5329
136 out_be16(&wdp->mr, wdog_module / 8192);
137 #else
138 out_be16(&wdp->mr, wdog_module / 4096);
139 #endif
140
141 out_be16(&wdp->cr, WTM_WCR_EN);
142 puts("WATCHDOG:enabled\n");
143
144 return (0);
145 }
146 #endif /* CONFIG_WATCHDOG */
147
148 #if defined(CONFIG_MCFFEC)
149 /* Default initializations for MCFFEC controllers. To override,
150 * create a board-specific function called:
151 * int board_eth_init(struct bd_info *bis)
152 */
cpu_eth_init(struct bd_info * bis)153 int cpu_eth_init(struct bd_info *bis)
154 {
155 return mcffec_initialize(bis);
156 }
157 #endif
158