1*83d290c5STom Rini // SPDX-License-Identifier: GPL-2.0+
2a4145534SPeter Tyser /*
3a4145534SPeter Tyser * (C) Copyright 2003
4a4145534SPeter Tyser * Josef Baumgartner <josef.baumgartner@telex.de>
5a4145534SPeter Tyser *
6a4145534SPeter Tyser * MCF5282 additionals
7a4145534SPeter Tyser * (C) Copyright 2005
8a4145534SPeter Tyser * BuS Elektronik GmbH & Co. KG <esw@bus-elektronik.de>
9a4145534SPeter Tyser *
10a4145534SPeter Tyser * MCF5275 additions
11a4145534SPeter Tyser * Copyright (C) 2008 Arthur Shipkowski (art@videon-central.com)
12a4145534SPeter Tyser *
1332dbaafaSAlison Wang * Copyright (C) 2012 Freescale Semiconductor, Inc. All Rights Reserved.
14a4145534SPeter Tyser */
15a4145534SPeter Tyser
16a4145534SPeter Tyser #include <common.h>
17a4145534SPeter Tyser #include <watchdog.h>
18a4145534SPeter Tyser #include <command.h>
19a4145534SPeter Tyser #include <asm/immap.h>
2032dbaafaSAlison Wang #include <asm/io.h>
21a4145534SPeter Tyser #include <netdev.h>
22a4145534SPeter Tyser #include "cpu.h"
23a4145534SPeter Tyser
24a4145534SPeter Tyser DECLARE_GLOBAL_DATA_PTR;
25a4145534SPeter Tyser
26a4145534SPeter Tyser #ifdef CONFIG_M5208
do_reset(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])27882b7d72SMike Frysinger int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
28a4145534SPeter Tyser {
2932dbaafaSAlison Wang rcm_t *rcm = (rcm_t *)(MMAP_RCM);
30a4145534SPeter Tyser
31a4145534SPeter Tyser udelay(1000);
32a4145534SPeter Tyser
3332dbaafaSAlison Wang out_8(&rcm->rcr, RCM_RCR_SOFTRST);
34a4145534SPeter Tyser
35a4145534SPeter Tyser /* we don't return! */
36a4145534SPeter Tyser return 0;
37a4145534SPeter Tyser };
38a4145534SPeter Tyser
39b9153fe3SAngelo Dureghello #if defined(CONFIG_DISPLAY_CPUINFO)
print_cpuinfo(void)40b9153fe3SAngelo Dureghello int print_cpuinfo(void)
41a4145534SPeter Tyser {
42a4145534SPeter Tyser char buf1[32], buf2[32];
43a4145534SPeter Tyser
44a4145534SPeter Tyser printf("CPU: Freescale Coldfire MCF5208\n"
45a4145534SPeter Tyser " CPU CLK %s MHz BUS CLK %s MHz\n",
46a4145534SPeter Tyser strmhz(buf1, gd->cpu_clk),
47a4145534SPeter Tyser strmhz(buf2, gd->bus_clk));
48a4145534SPeter Tyser return 0;
49a4145534SPeter Tyser };
50b9153fe3SAngelo Dureghello #endif /* CONFIG_DISPLAY_CPUINFO */
51a4145534SPeter Tyser
52a4145534SPeter Tyser #if defined(CONFIG_WATCHDOG)
53a4145534SPeter Tyser /* Called by macro WATCHDOG_RESET */
watchdog_reset(void)54a4145534SPeter Tyser void watchdog_reset(void)
55a4145534SPeter Tyser {
5632dbaafaSAlison Wang wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
5732dbaafaSAlison Wang
5832dbaafaSAlison Wang out_be16(&wdt->sr, 0x5555);
5932dbaafaSAlison Wang out_be16(&wdt->sr, 0xaaaa);
60a4145534SPeter Tyser }
61a4145534SPeter Tyser
watchdog_disable(void)62a4145534SPeter Tyser int watchdog_disable(void)
63a4145534SPeter Tyser {
6432dbaafaSAlison Wang wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
65a4145534SPeter Tyser
6632dbaafaSAlison Wang /* reset watchdog counter */
6732dbaafaSAlison Wang out_be16(&wdt->sr, 0x5555);
6832dbaafaSAlison Wang out_be16(&wdt->sr, 0xaaaa);
6932dbaafaSAlison Wang /* disable watchdog timer */
7032dbaafaSAlison Wang out_be16(&wdt->cr, 0);
71a4145534SPeter Tyser
72a4145534SPeter Tyser puts("WATCHDOG:disabled\n");
73a4145534SPeter Tyser return (0);
74a4145534SPeter Tyser }
75a4145534SPeter Tyser
watchdog_init(void)76a4145534SPeter Tyser int watchdog_init(void)
77a4145534SPeter Tyser {
7832dbaafaSAlison Wang wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
79a4145534SPeter Tyser
8032dbaafaSAlison Wang /* disable watchdog */
8132dbaafaSAlison Wang out_be16(&wdt->cr, 0);
82a4145534SPeter Tyser
83a4145534SPeter Tyser /* set timeout and enable watchdog */
8432dbaafaSAlison Wang out_be16(&wdt->mr,
8532dbaafaSAlison Wang (CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000) - 1);
8632dbaafaSAlison Wang
8732dbaafaSAlison Wang /* reset watchdog counter */
8832dbaafaSAlison Wang out_be16(&wdt->sr, 0x5555);
8932dbaafaSAlison Wang out_be16(&wdt->sr, 0xaaaa);
90a4145534SPeter Tyser
91a4145534SPeter Tyser puts("WATCHDOG:enabled\n");
92a4145534SPeter Tyser return (0);
93a4145534SPeter Tyser }
94a4145534SPeter Tyser #endif /* #ifdef CONFIG_WATCHDOG */
95a4145534SPeter Tyser #endif /* #ifdef CONFIG_M5208 */
96a4145534SPeter Tyser
97a4145534SPeter Tyser #ifdef CONFIG_M5271
98b9153fe3SAngelo Dureghello #if defined(CONFIG_DISPLAY_CPUINFO)
99a4145534SPeter Tyser /*
100a4145534SPeter Tyser * Both MCF5270 and MCF5271 are members of the MPC5271 family. Try to
101a4145534SPeter Tyser * determine which one we are running on, based on the Chip Identification
102a4145534SPeter Tyser * Register (CIR).
103a4145534SPeter Tyser */
print_cpuinfo(void)104b9153fe3SAngelo Dureghello int print_cpuinfo(void)
105a4145534SPeter Tyser {
106a4145534SPeter Tyser char buf[32];
107a4145534SPeter Tyser unsigned short cir; /* Chip Identification Register */
108a4145534SPeter Tyser unsigned short pin; /* Part identification number */
109a4145534SPeter Tyser unsigned char prn; /* Part revision number */
110a4145534SPeter Tyser char *cpu_model;
111a4145534SPeter Tyser
112a4145534SPeter Tyser cir = mbar_readShort(MCF_CCM_CIR);
113a4145534SPeter Tyser pin = cir >> MCF_CCM_CIR_PIN_LEN;
114a4145534SPeter Tyser prn = cir & MCF_CCM_CIR_PRN_MASK;
115a4145534SPeter Tyser
116a4145534SPeter Tyser switch (pin) {
117a4145534SPeter Tyser case MCF_CCM_CIR_PIN_MCF5270:
118a4145534SPeter Tyser cpu_model = "5270";
119a4145534SPeter Tyser break;
120a4145534SPeter Tyser case MCF_CCM_CIR_PIN_MCF5271:
121a4145534SPeter Tyser cpu_model = "5271";
122a4145534SPeter Tyser break;
123a4145534SPeter Tyser default:
124a4145534SPeter Tyser cpu_model = NULL;
125a4145534SPeter Tyser break;
126a4145534SPeter Tyser }
127a4145534SPeter Tyser
128a4145534SPeter Tyser if (cpu_model)
129a4145534SPeter Tyser printf("CPU: Freescale ColdFire MCF%s rev. %hu, at %s MHz\n",
130a4145534SPeter Tyser cpu_model, prn, strmhz(buf, CONFIG_SYS_CLK));
131a4145534SPeter Tyser else
132a4145534SPeter Tyser printf("CPU: Unknown - Freescale ColdFire MCF5271 family"
133a4145534SPeter Tyser " (PIN: 0x%x) rev. %hu, at %s MHz\n",
134a4145534SPeter Tyser pin, prn, strmhz(buf, CONFIG_SYS_CLK));
135a4145534SPeter Tyser
136a4145534SPeter Tyser return 0;
137a4145534SPeter Tyser }
138b9153fe3SAngelo Dureghello #endif /* CONFIG_DISPLAY_CPUINFO */
139a4145534SPeter Tyser
do_reset(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])140882b7d72SMike Frysinger int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
141a4145534SPeter Tyser {
142a4145534SPeter Tyser /* Call the board specific reset actions first. */
143a4145534SPeter Tyser if(board_reset) {
144a4145534SPeter Tyser board_reset();
145a4145534SPeter Tyser }
146a4145534SPeter Tyser
147a4145534SPeter Tyser mbar_writeByte(MCF_RCM_RCR,
148a4145534SPeter Tyser MCF_RCM_RCR_SOFTRST | MCF_RCM_RCR_FRCRSTOUT);
149a4145534SPeter Tyser return 0;
150a4145534SPeter Tyser };
151a4145534SPeter Tyser
152a4145534SPeter Tyser #if defined(CONFIG_WATCHDOG)
watchdog_reset(void)153a4145534SPeter Tyser void watchdog_reset(void)
154a4145534SPeter Tyser {
155a4145534SPeter Tyser mbar_writeShort(MCF_WTM_WSR, 0x5555);
156a4145534SPeter Tyser mbar_writeShort(MCF_WTM_WSR, 0xAAAA);
157a4145534SPeter Tyser }
158a4145534SPeter Tyser
watchdog_disable(void)159a4145534SPeter Tyser int watchdog_disable(void)
160a4145534SPeter Tyser {
161a4145534SPeter Tyser mbar_writeShort(MCF_WTM_WCR, 0);
162a4145534SPeter Tyser return (0);
163a4145534SPeter Tyser }
164a4145534SPeter Tyser
watchdog_init(void)165a4145534SPeter Tyser int watchdog_init(void)
166a4145534SPeter Tyser {
167a4145534SPeter Tyser mbar_writeShort(MCF_WTM_WCR, MCF_WTM_WCR_EN);
168a4145534SPeter Tyser return (0);
169a4145534SPeter Tyser }
170a4145534SPeter Tyser #endif /* #ifdef CONFIG_WATCHDOG */
171a4145534SPeter Tyser
172a4145534SPeter Tyser #endif
173a4145534SPeter Tyser
174a4145534SPeter Tyser #ifdef CONFIG_M5272
do_reset(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])175882b7d72SMike Frysinger int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
176a4145534SPeter Tyser {
17732dbaafaSAlison Wang wdog_t *wdp = (wdog_t *) (MMAP_WDOG);
178a4145534SPeter Tyser
17932dbaafaSAlison Wang out_be16(&wdp->wdog_wrrr, 0);
180a4145534SPeter Tyser udelay(1000);
181a4145534SPeter Tyser
182a4145534SPeter Tyser /* enable watchdog, set timeout to 0 and wait */
18332dbaafaSAlison Wang out_be16(&wdp->wdog_wrrr, 1);
184a4145534SPeter Tyser while (1) ;
185a4145534SPeter Tyser
186a4145534SPeter Tyser /* we don't return! */
187a4145534SPeter Tyser return 0;
188a4145534SPeter Tyser };
189a4145534SPeter Tyser
190b9153fe3SAngelo Dureghello #if defined(CONFIG_DISPLAY_CPUINFO)
print_cpuinfo(void)191b9153fe3SAngelo Dureghello int print_cpuinfo(void)
192a4145534SPeter Tyser {
19332dbaafaSAlison Wang sysctrl_t *sysctrl = (sysctrl_t *) (MMAP_CFG);
194a4145534SPeter Tyser uchar msk;
195a4145534SPeter Tyser char *suf;
196a4145534SPeter Tyser
197a4145534SPeter Tyser puts("CPU: ");
19832dbaafaSAlison Wang msk = (in_be32(&sysctrl->sc_dir) > 28) & 0xf;
199a4145534SPeter Tyser switch (msk) {
200a4145534SPeter Tyser case 0x2:
201a4145534SPeter Tyser suf = "1K75N";
202a4145534SPeter Tyser break;
203a4145534SPeter Tyser case 0x4:
204a4145534SPeter Tyser suf = "3K75N";
205a4145534SPeter Tyser break;
206a4145534SPeter Tyser default:
207a4145534SPeter Tyser suf = NULL;
208a4145534SPeter Tyser printf("Freescale MCF5272 (Mask:%01x)\n", msk);
209a4145534SPeter Tyser break;
210a4145534SPeter Tyser }
211a4145534SPeter Tyser
212a4145534SPeter Tyser if (suf)
213a4145534SPeter Tyser printf("Freescale MCF5272 %s\n", suf);
214a4145534SPeter Tyser return 0;
215a4145534SPeter Tyser };
216b9153fe3SAngelo Dureghello #endif /* CONFIG_DISPLAY_CPUINFO */
217a4145534SPeter Tyser
218a4145534SPeter Tyser #if defined(CONFIG_WATCHDOG)
219a4145534SPeter Tyser /* Called by macro WATCHDOG_RESET */
watchdog_reset(void)220a4145534SPeter Tyser void watchdog_reset(void)
221a4145534SPeter Tyser {
22232dbaafaSAlison Wang wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
22332dbaafaSAlison Wang
22432dbaafaSAlison Wang out_be16(&wdt->wdog_wcr, 0);
225a4145534SPeter Tyser }
226a4145534SPeter Tyser
watchdog_disable(void)227a4145534SPeter Tyser int watchdog_disable(void)
228a4145534SPeter Tyser {
22932dbaafaSAlison Wang wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
230a4145534SPeter Tyser
23132dbaafaSAlison Wang /* reset watchdog counter */
23232dbaafaSAlison Wang out_be16(&wdt->wdog_wcr, 0);
23332dbaafaSAlison Wang /* disable watchdog interrupt */
23432dbaafaSAlison Wang out_be16(&wdt->wdog_wirr, 0);
23532dbaafaSAlison Wang /* disable watchdog timer */
23632dbaafaSAlison Wang out_be16(&wdt->wdog_wrrr, 0);
237a4145534SPeter Tyser
238a4145534SPeter Tyser puts("WATCHDOG:disabled\n");
239a4145534SPeter Tyser return (0);
240a4145534SPeter Tyser }
241a4145534SPeter Tyser
watchdog_init(void)242a4145534SPeter Tyser int watchdog_init(void)
243a4145534SPeter Tyser {
24432dbaafaSAlison Wang wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
245a4145534SPeter Tyser
24632dbaafaSAlison Wang /* disable watchdog interrupt */
24732dbaafaSAlison Wang out_be16(&wdt->wdog_wirr, 0);
248a4145534SPeter Tyser
249a4145534SPeter Tyser /* set timeout and enable watchdog */
25032dbaafaSAlison Wang out_be16(&wdt->wdog_wrrr,
25132dbaafaSAlison Wang (CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000) - 1);
25232dbaafaSAlison Wang
25332dbaafaSAlison Wang /* reset watchdog counter */
25432dbaafaSAlison Wang out_be16(&wdt->wdog_wcr, 0);
255a4145534SPeter Tyser
256a4145534SPeter Tyser puts("WATCHDOG:enabled\n");
257a4145534SPeter Tyser return (0);
258a4145534SPeter Tyser }
259a4145534SPeter Tyser #endif /* #ifdef CONFIG_WATCHDOG */
260a4145534SPeter Tyser
261a4145534SPeter Tyser #endif /* #ifdef CONFIG_M5272 */
262a4145534SPeter Tyser
263a4145534SPeter Tyser #ifdef CONFIG_M5275
do_reset(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])264882b7d72SMike Frysinger int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
265a4145534SPeter Tyser {
26632dbaafaSAlison Wang rcm_t *rcm = (rcm_t *)(MMAP_RCM);
267a4145534SPeter Tyser
268a4145534SPeter Tyser udelay(1000);
269a4145534SPeter Tyser
27032dbaafaSAlison Wang out_8(&rcm->rcr, RCM_RCR_SOFTRST);
271a4145534SPeter Tyser
272a4145534SPeter Tyser /* we don't return! */
273a4145534SPeter Tyser return 0;
274a4145534SPeter Tyser };
275a4145534SPeter Tyser
276b9153fe3SAngelo Dureghello #if defined(CONFIG_DISPLAY_CPUINFO)
print_cpuinfo(void)277b9153fe3SAngelo Dureghello int print_cpuinfo(void)
278a4145534SPeter Tyser {
279a4145534SPeter Tyser char buf[32];
280a4145534SPeter Tyser
281a4145534SPeter Tyser printf("CPU: Freescale Coldfire MCF5275 at %s MHz\n",
282a4145534SPeter Tyser strmhz(buf, CONFIG_SYS_CLK));
283a4145534SPeter Tyser return 0;
284a4145534SPeter Tyser };
285b9153fe3SAngelo Dureghello #endif /* CONFIG_DISPLAY_CPUINFO */
286a4145534SPeter Tyser
287a4145534SPeter Tyser #if defined(CONFIG_WATCHDOG)
288a4145534SPeter Tyser /* Called by macro WATCHDOG_RESET */
watchdog_reset(void)289a4145534SPeter Tyser void watchdog_reset(void)
290a4145534SPeter Tyser {
29132dbaafaSAlison Wang wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
29232dbaafaSAlison Wang
29332dbaafaSAlison Wang out_be16(&wdt->wsr, 0x5555);
29432dbaafaSAlison Wang out_be16(&wdt->wsr, 0xaaaa);
295a4145534SPeter Tyser }
296a4145534SPeter Tyser
watchdog_disable(void)297a4145534SPeter Tyser int watchdog_disable(void)
298a4145534SPeter Tyser {
29932dbaafaSAlison Wang wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
300a4145534SPeter Tyser
30132dbaafaSAlison Wang /* reset watchdog counter */
30232dbaafaSAlison Wang out_be16(&wdt->wsr, 0x5555);
30332dbaafaSAlison Wang out_be16(&wdt->wsr, 0xaaaa);
30432dbaafaSAlison Wang
30532dbaafaSAlison Wang /* disable watchdog timer */
30632dbaafaSAlison Wang out_be16(&wdt->wcr, 0);
307a4145534SPeter Tyser
308a4145534SPeter Tyser puts("WATCHDOG:disabled\n");
309a4145534SPeter Tyser return (0);
310a4145534SPeter Tyser }
311a4145534SPeter Tyser
watchdog_init(void)312a4145534SPeter Tyser int watchdog_init(void)
313a4145534SPeter Tyser {
31432dbaafaSAlison Wang wdog_t *wdt = (wdog_t *)(MMAP_WDOG);
315a4145534SPeter Tyser
31632dbaafaSAlison Wang /* disable watchdog */
31732dbaafaSAlison Wang out_be16(&wdt->wcr, 0);
318a4145534SPeter Tyser
319a4145534SPeter Tyser /* set timeout and enable watchdog */
32032dbaafaSAlison Wang out_be16(&wdt->wmr,
32132dbaafaSAlison Wang (CONFIG_WATCHDOG_TIMEOUT * CONFIG_SYS_HZ) / (32768 * 1000) - 1);
32232dbaafaSAlison Wang
32332dbaafaSAlison Wang /* reset watchdog counter */
32432dbaafaSAlison Wang out_be16(&wdt->wsr, 0x5555);
32532dbaafaSAlison Wang out_be16(&wdt->wsr, 0xaaaa);
326a4145534SPeter Tyser
327a4145534SPeter Tyser puts("WATCHDOG:enabled\n");
328a4145534SPeter Tyser return (0);
329a4145534SPeter Tyser }
330a4145534SPeter Tyser #endif /* #ifdef CONFIG_WATCHDOG */
331a4145534SPeter Tyser
332a4145534SPeter Tyser #endif /* #ifdef CONFIG_M5275 */
333a4145534SPeter Tyser
334a4145534SPeter Tyser #ifdef CONFIG_M5282
335b9153fe3SAngelo Dureghello #if defined(CONFIG_DISPLAY_CPUINFO)
print_cpuinfo(void)336b9153fe3SAngelo Dureghello int print_cpuinfo(void)
337a4145534SPeter Tyser {
338a4145534SPeter Tyser unsigned char resetsource = MCFRESET_RSR;
339a4145534SPeter Tyser
340a4145534SPeter Tyser printf("CPU: Freescale Coldfire MCF5282 (PIN: %2.2x REV: %2.2x)\n",
341a4145534SPeter Tyser MCFCCM_CIR >> 8, MCFCCM_CIR & MCFCCM_CIR_PRN_MASK);
342a4145534SPeter Tyser printf("Reset:%s%s%s%s%s%s%s\n",
343a4145534SPeter Tyser (resetsource & MCFRESET_RSR_LOL) ? " Loss of Lock" : "",
344a4145534SPeter Tyser (resetsource & MCFRESET_RSR_LOC) ? " Loss of Clock" : "",
345a4145534SPeter Tyser (resetsource & MCFRESET_RSR_EXT) ? " External" : "",
346a4145534SPeter Tyser (resetsource & MCFRESET_RSR_POR) ? " Power On" : "",
347a4145534SPeter Tyser (resetsource & MCFRESET_RSR_WDR) ? " Watchdog" : "",
348a4145534SPeter Tyser (resetsource & MCFRESET_RSR_SOFT) ? " Software" : "",
349a4145534SPeter Tyser (resetsource & MCFRESET_RSR_LVD) ? " Low Voltage" : "");
350a4145534SPeter Tyser return 0;
351a4145534SPeter Tyser }
352b9153fe3SAngelo Dureghello #endif /* CONFIG_DISPLAY_CPUINFO */
353a4145534SPeter Tyser
do_reset(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])354882b7d72SMike Frysinger int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
355a4145534SPeter Tyser {
356a4145534SPeter Tyser MCFRESET_RCR = MCFRESET_RCR_SOFTRST;
357a4145534SPeter Tyser return 0;
358a4145534SPeter Tyser };
359a4145534SPeter Tyser #endif
360a4145534SPeter Tyser
361a4145534SPeter Tyser #ifdef CONFIG_M5249
362b9153fe3SAngelo Dureghello #if defined(CONFIG_DISPLAY_CPUINFO)
print_cpuinfo(void)363b9153fe3SAngelo Dureghello int print_cpuinfo(void)
364a4145534SPeter Tyser {
365a4145534SPeter Tyser char buf[32];
366a4145534SPeter Tyser
367a4145534SPeter Tyser printf("CPU: Freescale Coldfire MCF5249 at %s MHz\n",
368a4145534SPeter Tyser strmhz(buf, CONFIG_SYS_CLK));
369a4145534SPeter Tyser return 0;
370a4145534SPeter Tyser }
371b9153fe3SAngelo Dureghello #endif /* CONFIG_DISPLAY_CPUINFO */
372a4145534SPeter Tyser
do_reset(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])373882b7d72SMike Frysinger int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
374a4145534SPeter Tyser {
375a4145534SPeter Tyser /* enable watchdog, set timeout to 0 and wait */
376a4145534SPeter Tyser mbar_writeByte(MCFSIM_SYPCR, 0xc0);
377a4145534SPeter Tyser while (1) ;
378a4145534SPeter Tyser
379a4145534SPeter Tyser /* we don't return! */
380a4145534SPeter Tyser return 0;
381a4145534SPeter Tyser };
382a4145534SPeter Tyser #endif
383a4145534SPeter Tyser
384a4145534SPeter Tyser #ifdef CONFIG_M5253
385b9153fe3SAngelo Dureghello #if defined(CONFIG_DISPLAY_CPUINFO)
print_cpuinfo(void)386b9153fe3SAngelo Dureghello int print_cpuinfo(void)
387a4145534SPeter Tyser {
388a4145534SPeter Tyser char buf[32];
389a4145534SPeter Tyser
390a4145534SPeter Tyser unsigned char resetsource = mbar_readLong(SIM_RSR);
391a4145534SPeter Tyser printf("CPU: Freescale Coldfire MCF5253 at %s MHz\n",
392a4145534SPeter Tyser strmhz(buf, CONFIG_SYS_CLK));
393a4145534SPeter Tyser
394a4145534SPeter Tyser if ((resetsource & SIM_RSR_HRST) || (resetsource & SIM_RSR_SWTR)) {
395a4145534SPeter Tyser printf("Reset:%s%s\n",
396a4145534SPeter Tyser (resetsource & SIM_RSR_HRST) ? " Hardware/ System Reset"
397a4145534SPeter Tyser : "",
398a4145534SPeter Tyser (resetsource & SIM_RSR_SWTR) ? " Software Watchdog" :
399a4145534SPeter Tyser "");
400a4145534SPeter Tyser }
401a4145534SPeter Tyser return 0;
402a4145534SPeter Tyser }
403b9153fe3SAngelo Dureghello #endif /* CONFIG_DISPLAY_CPUINFO */
404a4145534SPeter Tyser
do_reset(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])405882b7d72SMike Frysinger int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
406a4145534SPeter Tyser {
407a4145534SPeter Tyser /* enable watchdog, set timeout to 0 and wait */
408a4145534SPeter Tyser mbar_writeByte(SIM_SYPCR, 0xc0);
409a4145534SPeter Tyser while (1) ;
410a4145534SPeter Tyser
411a4145534SPeter Tyser /* we don't return! */
412a4145534SPeter Tyser return 0;
413a4145534SPeter Tyser };
414a4145534SPeter Tyser #endif
415a4145534SPeter Tyser
416a4145534SPeter Tyser #if defined(CONFIG_MCFFEC)
417a4145534SPeter Tyser /* Default initializations for MCFFEC controllers. To override,
418a4145534SPeter Tyser * create a board-specific function called:
419a4145534SPeter Tyser * int board_eth_init(bd_t *bis)
420a4145534SPeter Tyser */
421a4145534SPeter Tyser
cpu_eth_init(bd_t * bis)422a4145534SPeter Tyser int cpu_eth_init(bd_t *bis)
423a4145534SPeter Tyser {
424a4145534SPeter Tyser return mcffec_initialize(bis);
425a4145534SPeter Tyser }
426a4145534SPeter Tyser #endif
427