xref: /openbmc/u-boot/arch/m68k/cpu/mcf5445x/cpu.c (revision 78a88f79)
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 
21 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
22 {
23 	rcm_t *rcm = (rcm_t *) (MMAP_RCM);
24 	udelay(1000);
25 	out_8(&rcm->rcr, RCM_RCR_FRCRSTOUT);
26 	udelay(10000);
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)
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 	case 0x48:
46 		id = 54455;
47 		break;
48 	case 0x49:
49 		id = 54454;
50 		break;
51 	case 0x4a:
52 		id = 54453;
53 		break;
54 	case 0x4b:
55 		id = 54452;
56 		break;
57 	case 0x4d:
58 		id = 54451;
59 		break;
60 	case 0x4f:
61 		id = 54450;
62 		break;
63 	case 0x9F:
64 		id = 54410;
65 		break;
66 	case 0xA0:
67 		id = 54415;
68 		break;
69 	case 0xA1:
70 		id = 54416;
71 		break;
72 	case 0xA2:
73 		id = 54417;
74 		break;
75 	case 0xA3:
76 		id = 54418;
77 		break;
78 	}
79 
80 	if (id) {
81 		char buf1[32], buf2[32], buf3[32];
82 
83 		printf("Freescale MCF%d (Mask:%01x Version:%x)\n", id, msk,
84 		       ver);
85 		printf("       CPU CLK %s MHz BUS CLK %s MHz FLB CLK %s MHz\n",
86 		       strmhz(buf1, gd->cpu_clk),
87 		       strmhz(buf2, gd->bus_clk),
88 		       strmhz(buf3, gd->arch.flb_clk));
89 #ifdef CONFIG_PCI
90 		printf("       PCI CLK %s MHz INP CLK %s MHz VCO CLK %s MHz\n",
91 		       strmhz(buf1, gd->pci_clk),
92 		       strmhz(buf2, gd->arch.inp_clk),
93 		       strmhz(buf3, gd->arch.vco_clk));
94 #else
95 		printf("       INP CLK %s MHz VCO CLK %s MHz\n",
96 		       strmhz(buf1, gd->arch.inp_clk),
97 		       strmhz(buf2, gd->arch.vco_clk));
98 #endif
99 	}
100 
101 	return 0;
102 }
103 #endif /* CONFIG_DISPLAY_CPUINFO */
104 
105 #if defined(CONFIG_MCFFEC)
106 /* Default initializations for MCFFEC controllers.  To override,
107  * create a board-specific function called:
108  * 	int board_eth_init(bd_t *bis)
109  */
110 
111 int cpu_eth_init(bd_t *bis)
112 {
113 	return mcffec_initialize(bis);
114 }
115 #endif
116