xref: /openbmc/u-boot/arch/m68k/cpu/mcf52x2/cpu_init.c (revision 37235496)
1 /*
2  * (C) Copyright 2003
3  * Josef Baumgartner <josef.baumgartner@telex.de>
4  *
5  * MCF5282 additionals
6  * (C) Copyright 2005
7  * BuS Elektronik GmbH & Co. KG <esw@bus-elektronik.de>
8  * (c) Copyright 2010
9  * Arcturus Networks Inc. <www.arcturusnetworks.com>
10  *
11  * Copyright (C) 2004-2007, 2012 Freescale Semiconductor, Inc.
12  * TsiChung Liew (Tsi-Chung.Liew@freescale.com)
13  * Hayden Fraser (Hayden.Fraser@freescale.com)
14  *
15  * MCF5275 additions
16  * Copyright (C) 2008 Arthur Shipkowski (art@videon-central.com)
17  *
18  * See file CREDITS for list of people who contributed to this
19  * project.
20  *
21  * This program is free software; you can redistribute it and/or
22  * modify it under the terms of the GNU General Public License as
23  * published by the Free Software Foundation; either version 2 of
24  * the License, or (at your option) any later version.
25  *
26  * This program is distributed in the hope that it will be useful,
27  * but WITHOUT ANY WARRANTY; without even the implied warranty of
28  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
29  * GNU General Public License for more details.
30  *
31  * You should have received a copy of the GNU General Public License
32  * along with this program; if not, write to the Free Software
33  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
34  * MA 02111-1307 USA
35  */
36 
37 #include <common.h>
38 #include <watchdog.h>
39 #include <asm/immap.h>
40 #include <asm/io.h>
41 
42 #if defined(CONFIG_CMD_NET)
43 #include <config.h>
44 #include <net.h>
45 #include <asm/fec.h>
46 #endif
47 
48 #ifndef CONFIG_M5272
49 /* Only 5272 Flexbus chipselect is different from the rest */
50 void init_fbcs(void)
51 {
52 	fbcs_t *fbcs = (fbcs_t *) (MMAP_FBCS);
53 
54 #if (defined(CONFIG_SYS_CS0_BASE) && defined(CONFIG_SYS_CS0_MASK) \
55      && defined(CONFIG_SYS_CS0_CTRL))
56 	out_be32(&fbcs->csar0, CONFIG_SYS_CS0_BASE);
57 	out_be32(&fbcs->cscr0, CONFIG_SYS_CS0_CTRL);
58 	out_be32(&fbcs->csmr0, CONFIG_SYS_CS0_MASK);
59 #else
60 #warning "Chip Select 0 are not initialized/used"
61 #endif
62 #if (defined(CONFIG_SYS_CS1_BASE) && defined(CONFIG_SYS_CS1_MASK) \
63      && defined(CONFIG_SYS_CS1_CTRL))
64 	out_be32(&fbcs->csar1, CONFIG_SYS_CS1_BASE);
65 	out_be32(&fbcs->cscr1, CONFIG_SYS_CS1_CTRL);
66 	out_be32(&fbcs->csmr1, CONFIG_SYS_CS1_MASK);
67 #endif
68 #if (defined(CONFIG_SYS_CS2_BASE) && defined(CONFIG_SYS_CS2_MASK) \
69      && defined(CONFIG_SYS_CS2_CTRL))
70 	out_be32(&fbcs->csar2, CONFIG_SYS_CS2_BASE);
71 	out_be32(&fbcs->cscr2, CONFIG_SYS_CS2_CTRL);
72 	out_be32(&fbcs->csmr2, CONFIG_SYS_CS2_MASK);
73 #endif
74 #if (defined(CONFIG_SYS_CS3_BASE) && defined(CONFIG_SYS_CS3_MASK) \
75      && defined(CONFIG_SYS_CS3_CTRL))
76 	out_be32(&fbcs->csar3, CONFIG_SYS_CS3_BASE);
77 	out_be32(&fbcs->cscr3, CONFIG_SYS_CS3_CTRL);
78 	out_be32(&fbcs->csmr3, CONFIG_SYS_CS3_MASK);
79 #endif
80 #if (defined(CONFIG_SYS_CS4_BASE) && defined(CONFIG_SYS_CS4_MASK) \
81      && defined(CONFIG_SYS_CS4_CTRL))
82 	out_be32(&fbcs->csar4, CONFIG_SYS_CS4_BASE);
83 	out_be32(&fbcs->cscr4, CONFIG_SYS_CS4_CTRL);
84 	out_be32(&fbcs->csmr4, CONFIG_SYS_CS4_MASK);
85 #endif
86 #if (defined(CONFIG_SYS_CS5_BASE) && defined(CONFIG_SYS_CS5_MASK) \
87      && defined(CONFIG_SYS_CS5_CTRL))
88 	out_be32(&fbcs->csar5, CONFIG_SYS_CS5_BASE);
89 	out_be32(&fbcs->cscr5, CONFIG_SYS_CS5_CTRL);
90 	out_be32(&fbcs->csmr5, CONFIG_SYS_CS5_MASK);
91 #endif
92 #if (defined(CONFIG_SYS_CS6_BASE) && defined(CONFIG_SYS_CS6_MASK) \
93      && defined(CONFIG_SYS_CS6_CTRL))
94 	out_be32(&fbcs->csar6, CONFIG_SYS_CS6_BASE);
95 	out_be32(&fbcs->cscr6, CONFIG_SYS_CS6_CTRL);
96 	out_be32(&fbcs->csmr6, CONFIG_SYS_CS6_MASK);
97 #endif
98 #if (defined(CONFIG_SYS_CS7_BASE) && defined(CONFIG_SYS_CS7_MASK) \
99      && defined(CONFIG_SYS_CS7_CTRL))
100 	out_be32(&fbcs->csar7, CONFIG_SYS_CS7_BASE);
101 	out_be32(&fbcs->cscr7, CONFIG_SYS_CS7_CTRL);
102 	out_be32(&fbcs->csmr7, CONFIG_SYS_CS7_MASK);
103 #endif
104 }
105 #endif
106 
107 #if defined(CONFIG_M5208)
108 void cpu_init_f(void)
109 {
110 	scm1_t *scm1 = (scm1_t *) MMAP_SCM1;
111 
112 #ifndef CONFIG_WATCHDOG
113 	wdog_t *wdg = (wdog_t *) MMAP_WDOG;
114 
115 	/* Disable the watchdog if we aren't using it */
116 	out_be16(&wdg->cr, 0);
117 #endif
118 
119 	out_be32(&scm1->mpr, 0x77777777);
120 	out_be32(&scm1->pacra, 0);
121 	out_be32(&scm1->pacrb, 0);
122 	out_be32(&scm1->pacrc, 0);
123 	out_be32(&scm1->pacrd, 0);
124 	out_be32(&scm1->pacre, 0);
125 	out_be32(&scm1->pacrf, 0);
126 
127 	/* FlexBus Chipselect */
128 	init_fbcs();
129 
130 	icache_enable();
131 }
132 
133 /* initialize higher level parts of CPU like timers */
134 int cpu_init_r(void)
135 {
136 	return (0);
137 }
138 
139 void uart_port_conf(int port)
140 {
141 	gpio_t *gpio = (gpio_t *) MMAP_GPIO;
142 
143 	/* Setup Ports: */
144 	switch (port) {
145 	case 0:
146 		clrbits_be16(&gpio->par_uart, ~GPIO_PAR_UART0_UNMASK);
147 		setbits_be16(&gpio->par_uart, GPIO_PAR_UART_U0TXD | GPIO_PAR_UART_U0RXD);
148 		break;
149 	case 1:
150 		clrbits_be16(&gpio->par_uart, ~GPIO_PAR_UART0_UNMASK);
151 		setbits_be16(&gpio->par_uart, GPIO_PAR_UART_U1TXD | GPIO_PAR_UART_U1RXD);
152 		break;
153 	case 2:
154 #ifdef CONFIG_SYS_UART2_PRI_GPIO
155 		clrbits_8(&gpio->par_timer,
156 			~(GPIO_PAR_TMR_TIN0_UNMASK | GPIO_PAR_TMR_TIN1_UNMASK));
157 		setbits_8(&gpio->par_timer,
158 			GPIO_PAR_TMR_TIN0_U2TXD | GPIO_PAR_TMR_TIN1_U2RXD);
159 #endif
160 #ifdef CONFIG_SYS_UART2_ALT1_GPIO
161 		clrbits_8(&gpio->par_feci2c,
162 			~(GPIO_PAR_FECI2C_MDC_UNMASK | GPIO_PAR_FECI2C_MDIO_UNMASK));
163 		setbits_8(&gpio->par_feci2c,
164 			GPIO_PAR_FECI2C_MDC_U2TXD | GPIO_PAR_FECI2C_MDIO_U2RXD);
165 #endif
166 #ifdef CONFIG_SYS_UART2_ALT1_GPIO
167 		clrbits_8(&gpio->par_feci2c,
168 			~(GPIO_PAR_FECI2C_SDA_UNMASK | GPIO_PAR_FECI2C_SCL_UNMASK));
169 		setbits_8(&gpio->par_feci2c,
170 			GPIO_PAR_FECI2C_SDA_U2TXD | GPIO_PAR_FECI2C_SCL_U2RXD);
171 #endif
172 		break;
173 	}
174 }
175 
176 #if defined(CONFIG_CMD_NET)
177 int fecpin_setclear(struct eth_device *dev, int setclear)
178 {
179 	gpio_t *gpio = (gpio_t *) MMAP_GPIO;
180 
181 	if (setclear) {
182 		setbits_8(&gpio->par_fec,
183 			GPIO_PAR_FEC_7W_FEC | GPIO_PAR_FEC_MII_FEC);
184 		setbits_8(&gpio->par_feci2c,
185 			GPIO_PAR_FECI2C_MDC_MDC | GPIO_PAR_FECI2C_MDIO_MDIO);
186 	} else {
187 		clrbits_8(&gpio->par_fec,
188 			~(GPIO_PAR_FEC_7W_UNMASK & GPIO_PAR_FEC_MII_UNMASK));
189 		clrbits_8(&gpio->par_feci2c, ~GPIO_PAR_FECI2C_RMII_UNMASK);
190 	}
191 	return 0;
192 }
193 #endif				/* CONFIG_CMD_NET */
194 #endif				/* CONFIG_M5208 */
195 
196 #if defined(CONFIG_M5253)
197 /*
198  * Breath some life into the CPU...
199  *
200  * Set up the memory map,
201  * initialize a bunch of registers,
202  * initialize the UPM's
203  */
204 void cpu_init_f(void)
205 {
206 	mbar_writeByte(MCFSIM_MPARK, 0x40);	/* 5249 Internal Core takes priority over DMA */
207 	mbar_writeByte(MCFSIM_SYPCR, 0x00);
208 	mbar_writeByte(MCFSIM_SWIVR, 0x0f);
209 	mbar_writeByte(MCFSIM_SWSR, 0x00);
210 	mbar_writeByte(MCFSIM_SWDICR, 0x00);
211 	mbar_writeByte(MCFSIM_TIMER1ICR, 0x00);
212 	mbar_writeByte(MCFSIM_TIMER2ICR, 0x88);
213 	mbar_writeByte(MCFSIM_I2CICR, 0x00);
214 	mbar_writeByte(MCFSIM_UART1ICR, 0x00);
215 	mbar_writeByte(MCFSIM_UART2ICR, 0x00);
216 	mbar_writeByte(MCFSIM_ICR6, 0x00);
217 	mbar_writeByte(MCFSIM_ICR7, 0x00);
218 	mbar_writeByte(MCFSIM_ICR8, 0x00);
219 	mbar_writeByte(MCFSIM_ICR9, 0x00);
220 	mbar_writeByte(MCFSIM_QSPIICR, 0x00);
221 
222 	mbar2_writeLong(MCFSIM_GPIO_INT_EN, 0x00000080);
223 	mbar2_writeByte(MCFSIM_INTBASE, 0x40);	/* Base interrupts at 64 */
224 	mbar2_writeByte(MCFSIM_SPURVEC, 0x00);
225 
226 	/*mbar2_writeLong(MCFSIM_IDECONFIG1, 0x00000020); */ /* Enable a 1 cycle pre-drive cycle on CS1 */
227 
228 	/* FlexBus Chipselect */
229 	init_fbcs();
230 
231 #ifdef CONFIG_FSL_I2C
232 	CONFIG_SYS_I2C_PINMUX_REG =
233 	    CONFIG_SYS_I2C_PINMUX_REG & CONFIG_SYS_I2C_PINMUX_CLR;
234 	CONFIG_SYS_I2C_PINMUX_REG |= CONFIG_SYS_I2C_PINMUX_SET;
235 #ifdef CONFIG_SYS_I2C2_OFFSET
236 	CONFIG_SYS_I2C2_PINMUX_REG &= CONFIG_SYS_I2C2_PINMUX_CLR;
237 	CONFIG_SYS_I2C2_PINMUX_REG |= CONFIG_SYS_I2C2_PINMUX_SET;
238 #endif
239 #endif
240 
241 	/* enable instruction cache now */
242 	icache_enable();
243 }
244 
245 /*initialize higher level parts of CPU like timers */
246 int cpu_init_r(void)
247 {
248 	return (0);
249 }
250 
251 void uart_port_conf(int port)
252 {
253 	u32 *par = (u32 *) MMAP_PAR;
254 
255 	/* Setup Ports: */
256 	switch (port) {
257 	case 1:
258 		clrbits_be32(par, 0x00180000);
259 		setbits_be32(par, 0x00180000);
260 		break;
261 	case 2:
262 		clrbits_be32(par, 0x00000003);
263 		clrbits_be32(par, 0xFFFFFFFC);
264 		break;
265 	}
266 }
267 #endif				/* #if defined(CONFIG_M5253) */
268 
269 #if defined(CONFIG_M5271)
270 void cpu_init_f(void)
271 {
272 #ifndef CONFIG_WATCHDOG
273 	/* Disable the watchdog if we aren't using it */
274 	mbar_writeShort(MCF_WTM_WCR, 0);
275 #endif
276 
277 	/* FlexBus Chipselect */
278 	init_fbcs();
279 
280 #ifdef CONFIG_SYS_MCF_SYNCR
281 	/* Set clockspeed according to board header file */
282 	mbar_writeLong(MCF_FMPLL_SYNCR, CONFIG_SYS_MCF_SYNCR);
283 #else
284 	/* Set clockspeed to 100MHz */
285 	mbar_writeLong(MCF_FMPLL_SYNCR,
286 			MCF_FMPLL_SYNCR_MFD(0) | MCF_FMPLL_SYNCR_RFD(0));
287 #endif
288 	while (!(mbar_readByte(MCF_FMPLL_SYNSR) & MCF_FMPLL_SYNSR_LOCK)) ;
289 }
290 
291 /*
292  * initialize higher level parts of CPU like timers
293  */
294 int cpu_init_r(void)
295 {
296 	return (0);
297 }
298 
299 void uart_port_conf(int port)
300 {
301 	u16 temp;
302 
303 	/* Setup Ports: */
304 	switch (port) {
305 	case 0:
306 		temp = mbar_readShort(MCF_GPIO_PAR_UART) & 0xFFF3;
307 		temp |= (MCF_GPIO_PAR_UART_U0TXD | MCF_GPIO_PAR_UART_U0RXD);
308 		mbar_writeShort(MCF_GPIO_PAR_UART, temp);
309 		break;
310 	case 1:
311 		temp = mbar_readShort(MCF_GPIO_PAR_UART) & 0xF0FF;
312 		temp |= (MCF_GPIO_PAR_UART_U1RXD_UART1 | MCF_GPIO_PAR_UART_U1TXD_UART1);
313 		mbar_writeShort(MCF_GPIO_PAR_UART, temp);
314 		break;
315 	case 2:
316 		temp = mbar_readShort(MCF_GPIO_PAR_UART) & 0xCFFF;
317 		temp |= (0x3000);
318 		mbar_writeShort(MCF_GPIO_PAR_UART, temp);
319 		break;
320 	}
321 }
322 
323 #if defined(CONFIG_CMD_NET)
324 int fecpin_setclear(struct eth_device *dev, int setclear)
325 {
326 	if (setclear) {
327 		/* Enable Ethernet pins */
328 		mbar_writeByte(MCF_GPIO_PAR_FECI2C,
329 			       (mbar_readByte(MCF_GPIO_PAR_FECI2C) | 0xF0));
330 	} else {
331 	}
332 
333 	return 0;
334 }
335 #endif				/* CONFIG_CMD_NET */
336 
337 #if defined(CONFIG_CF_QSPI)
338 
339 /* Configure PIOs for SIN, SOUT, and SCK */
340 void cfspi_port_conf(void)
341 {
342 	mbar_writeByte(MCF_GPIO_PAR_QSPI,
343 		       MCF_GPIO_PAR_QSPI_SIN_SIN   |
344 		       MCF_GPIO_PAR_QSPI_SOUT_SOUT |
345 		       MCF_GPIO_PAR_QSPI_SCK_SCK);
346 }
347 #endif				/* CONFIG_CF_QSPI */
348 
349 #endif				/* CONFIG_M5271 */
350 
351 #if defined(CONFIG_M5272)
352 /*
353  * Breath some life into the CPU...
354  *
355  * Set up the memory map,
356  * initialize a bunch of registers,
357  * initialize the UPM's
358  */
359 void cpu_init_f(void)
360 {
361 	/* if we come from RAM we assume the CPU is
362 	 * already initialized.
363 	 */
364 #ifndef CONFIG_MONITOR_IS_IN_RAM
365 	sysctrl_t *sysctrl = (sysctrl_t *) (CONFIG_SYS_MBAR);
366 	gpio_t *gpio = (gpio_t *) (MMAP_GPIO);
367 	csctrl_t *csctrl = (csctrl_t *) (MMAP_FBCS);
368 
369 	out_be16(&sysctrl->sc_scr, CONFIG_SYS_SCR);
370 	out_be16(&sysctrl->sc_spr, CONFIG_SYS_SPR);
371 
372 	/* Setup Ports: */
373 	out_be32(&gpio->gpio_pacnt, CONFIG_SYS_PACNT);
374 	out_be16(&gpio->gpio_paddr, CONFIG_SYS_PADDR);
375 	out_be16(&gpio->gpio_padat, CONFIG_SYS_PADAT);
376 	out_be32(&gpio->gpio_pbcnt, CONFIG_SYS_PBCNT);
377 	out_be16(&gpio->gpio_pbddr, CONFIG_SYS_PBDDR);
378 	out_be16(&gpio->gpio_pbdat, CONFIG_SYS_PBDAT);
379 	out_be32(&gpio->gpio_pdcnt, CONFIG_SYS_PDCNT);
380 
381 	/* Memory Controller: */
382 	out_be32(&csctrl->cs_br0, CONFIG_SYS_BR0_PRELIM);
383 	out_be32(&csctrl->cs_or0, CONFIG_SYS_OR0_PRELIM);
384 
385 #if (defined(CONFIG_SYS_OR1_PRELIM) && defined(CONFIG_SYS_BR1_PRELIM))
386 	out_be32(&csctrl->cs_br1, CONFIG_SYS_BR1_PRELIM);
387 	out_be32(&csctrl->cs_or1, CONFIG_SYS_OR1_PRELIM);
388 #endif
389 
390 #if defined(CONFIG_SYS_OR2_PRELIM) && defined(CONFIG_SYS_BR2_PRELIM)
391 	out_be32(&csctrl->cs_br2, CONFIG_SYS_BR2_PRELIM);
392 	out_be32(&csctrl->cs_or2, CONFIG_SYS_OR2_PRELIM);
393 #endif
394 
395 #if defined(CONFIG_SYS_OR3_PRELIM) && defined(CONFIG_SYS_BR3_PRELIM)
396 	out_be32(&csctrl->cs_br3, CONFIG_SYS_BR3_PRELIM);
397 	out_be32(&csctrl->cs_or3, CONFIG_SYS_OR3_PRELIM);
398 #endif
399 
400 #if defined(CONFIG_SYS_OR4_PRELIM) && defined(CONFIG_SYS_BR4_PRELIM)
401 	out_be32(&csctrl->cs_br4, CONFIG_SYS_BR4_PRELIM);
402 	out_be32(&csctrl->cs_or4, CONFIG_SYS_OR4_PRELIM);
403 #endif
404 
405 #if defined(CONFIG_SYS_OR5_PRELIM) && defined(CONFIG_SYS_BR5_PRELIM)
406 	out_be32(&csctrl->cs_br5, CONFIG_SYS_BR5_PRELIM);
407 	out_be32(&csctrl->cs_or5, CONFIG_SYS_OR5_PRELIM);
408 #endif
409 
410 #if defined(CONFIG_SYS_OR6_PRELIM) && defined(CONFIG_SYS_BR6_PRELIM)
411 	out_be32(&csctrl->cs_br6, CONFIG_SYS_BR6_PRELIM);
412 	out_be32(&csctrl->cs_or6, CONFIG_SYS_OR6_PRELIM);
413 #endif
414 
415 #if defined(CONFIG_SYS_OR7_PRELIM) && defined(CONFIG_SYS_BR7_PRELIM)
416 	out_be32(&csctrl->cs_br7, CONFIG_SYS_BR7_PRELIM);
417 	out_be32(&csctrl->cs_or7, CONFIG_SYS_OR7_PRELIM);
418 #endif
419 
420 #endif				/* #ifndef CONFIG_MONITOR_IS_IN_RAM */
421 
422 	/* enable instruction cache now */
423 	icache_enable();
424 
425 }
426 
427 /*
428  * initialize higher level parts of CPU like timers
429  */
430 int cpu_init_r(void)
431 {
432 	return (0);
433 }
434 
435 void uart_port_conf(int port)
436 {
437 	gpio_t *gpio = (gpio_t *) MMAP_GPIO;
438 
439 	/* Setup Ports: */
440 	switch (port) {
441 	case 0:
442 		clrbits_be32(&gpio->gpio_pbcnt,
443 			GPIO_PBCNT_PB0MSK | GPIO_PBCNT_PB1MSK);
444 		setbits_be32(&gpio->gpio_pbcnt,
445 			GPIO_PBCNT_URT0_TXD | GPIO_PBCNT_URT0_RXD);
446 		break;
447 	case 1:
448 		clrbits_be32(&gpio->gpio_pdcnt,
449 			GPIO_PDCNT_PD1MSK | GPIO_PDCNT_PD4MSK);
450 		setbits_be32(&gpio->gpio_pdcnt,
451 			GPIO_PDCNT_URT1_RXD | GPIO_PDCNT_URT1_TXD);
452 		break;
453 	}
454 }
455 
456 #if defined(CONFIG_CMD_NET)
457 int fecpin_setclear(struct eth_device *dev, int setclear)
458 {
459 	gpio_t *gpio = (gpio_t *) MMAP_GPIO;
460 
461 	if (setclear) {
462 		setbits_be32(&gpio->gpio_pbcnt,
463 			GPIO_PBCNT_E_MDC | GPIO_PBCNT_E_RXER |
464 			GPIO_PBCNT_E_RXD1 | GPIO_PBCNT_E_RXD2 |
465 			GPIO_PBCNT_E_RXD3 | GPIO_PBCNT_E_TXD1 |
466 			GPIO_PBCNT_E_TXD2 | GPIO_PBCNT_E_TXD3);
467 	} else {
468 	}
469 	return 0;
470 }
471 #endif				/* CONFIG_CMD_NET */
472 #endif				/* #if defined(CONFIG_M5272) */
473 
474 #if defined(CONFIG_M5275)
475 
476 /*
477  * Breathe some life into the CPU...
478  *
479  * Set up the memory map,
480  * initialize a bunch of registers,
481  * initialize the UPM's
482  */
483 void cpu_init_f(void)
484 {
485 	/*
486 	 * if we come from RAM we assume the CPU is
487 	 * already initialized.
488 	 */
489 
490 #ifndef CONFIG_MONITOR_IS_IN_RAM
491 	wdog_t *wdog_reg = (wdog_t *) (MMAP_WDOG);
492 	gpio_t *gpio_reg = (gpio_t *) (MMAP_GPIO);
493 
494 	/* Kill watchdog so we can initialize the PLL */
495 	out_be16(&wdog_reg->wcr, 0);
496 
497 	/* FlexBus Chipselect */
498 	init_fbcs();
499 #endif				/* #ifndef CONFIG_MONITOR_IS_IN_RAM */
500 
501 #ifdef CONFIG_FSL_I2C
502 	CONFIG_SYS_I2C_PINMUX_REG &= CONFIG_SYS_I2C_PINMUX_CLR;
503 	CONFIG_SYS_I2C_PINMUX_REG |= CONFIG_SYS_I2C_PINMUX_SET;
504 #endif
505 
506 	/* enable instruction cache now */
507 	icache_enable();
508 }
509 
510 /*
511  * initialize higher level parts of CPU like timers
512  */
513 int cpu_init_r(void)
514 {
515 	return (0);
516 }
517 
518 void uart_port_conf(int port)
519 {
520 	gpio_t *gpio = (gpio_t *) MMAP_GPIO;
521 
522 	/* Setup Ports: */
523 	switch (port) {
524 	case 0:
525 		clrbits_be16(&gpio->par_uart, UART0_ENABLE_MASK);
526 		setbits_be16(&gpio->par_uart, UART0_ENABLE_MASK);
527 		break;
528 	case 1:
529 		clrbits_be16(&gpio->par_uart, UART1_ENABLE_MASK);
530 		setbits_be16(&gpio->par_uart, UART1_ENABLE_MASK);
531 		break;
532 	case 2:
533 		clrbits_be16(&gpio->par_uart, UART2_ENABLE_MASK);
534 		setbits_be16(&gpio->par_uart, UART2_ENABLE_MASK);
535 		break;
536 	}
537 }
538 
539 #if defined(CONFIG_CMD_NET)
540 int fecpin_setclear(struct eth_device *dev, int setclear)
541 {
542 	struct fec_info_s *info = (struct fec_info_s *) dev->priv;
543 	gpio_t *gpio = (gpio_t *)MMAP_GPIO;
544 
545 	if (setclear) {
546 		/* Enable Ethernet pins */
547 		if (info->iobase == CONFIG_SYS_FEC0_IOBASE) {
548 			setbits_be16(&gpio->par_feci2c, 0x0f00);
549 			setbits_8(&gpio->par_fec0hl, 0xc0);
550 		} else {
551 			setbits_be16(&gpio->par_feci2c, 0x00a0);
552 			setbits_8(&gpio->par_fec1hl, 0xc0);
553 		}
554 	} else {
555 		if (info->iobase == CONFIG_SYS_FEC0_IOBASE) {
556 			clrbits_be16(&gpio->par_feci2c, 0x0f00);
557 			clrbits_8(&gpio->par_fec0hl, 0xc0);
558 		} else {
559 			clrbits_be16(&gpio->par_feci2c, 0x00a0);
560 			clrbits_8(&gpio->par_fec1hl, 0xc0);
561 		}
562 	}
563 
564 	return 0;
565 }
566 #endif				/* CONFIG_CMD_NET */
567 #endif				/* #if defined(CONFIG_M5275) */
568 
569 #if defined(CONFIG_M5282)
570 /*
571  * Breath some life into the CPU...
572  *
573  * Set up the memory map,
574  * initialize a bunch of registers,
575  * initialize the UPM's
576  */
577 void cpu_init_f(void)
578 {
579 #ifndef CONFIG_WATCHDOG
580 	/* disable watchdog if we aren't using it */
581 	MCFWTM_WCR = 0;
582 #endif
583 
584 #ifndef CONFIG_MONITOR_IS_IN_RAM
585 	/* Set speed /PLL */
586 	MCFCLOCK_SYNCR =
587 	    MCFCLOCK_SYNCR_MFD(CONFIG_SYS_MFD) |
588 	    MCFCLOCK_SYNCR_RFD(CONFIG_SYS_RFD);
589 	while (!(MCFCLOCK_SYNSR & MCFCLOCK_SYNSR_LOCK)) ;
590 
591 	MCFGPIO_PBCDPAR = 0xc0;
592 
593 	/* Set up the GPIO ports */
594 #ifdef CONFIG_SYS_PEPAR
595 	MCFGPIO_PEPAR = CONFIG_SYS_PEPAR;
596 #endif
597 #ifdef	CONFIG_SYS_PFPAR
598 	MCFGPIO_PFPAR = CONFIG_SYS_PFPAR;
599 #endif
600 #ifdef CONFIG_SYS_PJPAR
601 	MCFGPIO_PJPAR = CONFIG_SYS_PJPAR;
602 #endif
603 #ifdef CONFIG_SYS_PSDPAR
604 	MCFGPIO_PSDPAR = CONFIG_SYS_PSDPAR;
605 #endif
606 #ifdef CONFIG_SYS_PASPAR
607 	MCFGPIO_PASPAR = CONFIG_SYS_PASPAR;
608 #endif
609 #ifdef CONFIG_SYS_PEHLPAR
610 	MCFGPIO_PEHLPAR = CONFIG_SYS_PEHLPAR;
611 #endif
612 #ifdef CONFIG_SYS_PQSPAR
613 	MCFGPIO_PQSPAR = CONFIG_SYS_PQSPAR;
614 #endif
615 #ifdef CONFIG_SYS_PTCPAR
616 	MCFGPIO_PTCPAR = CONFIG_SYS_PTCPAR;
617 #endif
618 #if defined(CONFIG_SYS_PORTTC)
619 	MCFGPIO_PORTTC = CONFIG_SYS_PORTTC;
620 #endif
621 #if defined(CONFIG_SYS_DDRTC)
622 	MCFGPIO_DDRTC  = CONFIG_SYS_DDRTC;
623 #endif
624 #ifdef CONFIG_SYS_PTDPAR
625 	MCFGPIO_PTDPAR = CONFIG_SYS_PTDPAR;
626 #endif
627 #ifdef CONFIG_SYS_PUAPAR
628 	MCFGPIO_PUAPAR = CONFIG_SYS_PUAPAR;
629 #endif
630 
631 #if defined(CONFIG_SYS_DDRD)
632 	MCFGPIO_DDRD = CONFIG_SYS_DDRD;
633 #endif
634 #ifdef CONFIG_SYS_DDRUA
635 	MCFGPIO_DDRUA = CONFIG_SYS_DDRUA;
636 #endif
637 
638 	/* FlexBus Chipselect */
639 	init_fbcs();
640 
641 #endif				/* CONFIG_MONITOR_IS_IN_RAM */
642 
643 	/* defer enabling cache until boot (see do_go) */
644 	/* icache_enable(); */
645 }
646 
647 /*
648  * initialize higher level parts of CPU like timers
649  */
650 int cpu_init_r(void)
651 {
652 	return (0);
653 }
654 
655 void uart_port_conf(int port)
656 {
657 	/* Setup Ports: */
658 	switch (port) {
659 	case 0:
660 		MCFGPIO_PUAPAR &= 0xFc;
661 		MCFGPIO_PUAPAR |= 0x03;
662 		break;
663 	case 1:
664 		MCFGPIO_PUAPAR &= 0xF3;
665 		MCFGPIO_PUAPAR |= 0x0C;
666 		break;
667 	case 2:
668 		MCFGPIO_PASPAR &= 0xFF0F;
669 		MCFGPIO_PASPAR |= 0x00A0;
670 		break;
671 	}
672 }
673 
674 #if defined(CONFIG_CMD_NET)
675 int fecpin_setclear(struct eth_device *dev, int setclear)
676 {
677 	if (setclear) {
678 		MCFGPIO_PASPAR |= 0x0F00;
679 		MCFGPIO_PEHLPAR = CONFIG_SYS_PEHLPAR;
680 	} else {
681 		MCFGPIO_PASPAR &= 0xF0FF;
682 		MCFGPIO_PEHLPAR &= ~CONFIG_SYS_PEHLPAR;
683 	}
684 	return 0;
685 }
686 #endif			/* CONFIG_CMD_NET */
687 #endif
688 
689 #if defined(CONFIG_M5249)
690 /*
691  * Breath some life into the CPU...
692  *
693  * Set up the memory map,
694  * initialize a bunch of registers,
695  * initialize the UPM's
696  */
697 void cpu_init_f(void)
698 {
699 	/*
700 	 *  NOTE: by setting the GPIO_FUNCTION registers, we ensure that the UART pins
701 	 *        (UART0: gpio 30,27, UART1: gpio 31, 28) will be used as UART pins
702 	 *        which is their primary function.
703 	 *        ~Jeremy
704 	 */
705 	mbar2_writeLong(MCFSIM_GPIO_FUNC, CONFIG_SYS_GPIO_FUNC);
706 	mbar2_writeLong(MCFSIM_GPIO1_FUNC, CONFIG_SYS_GPIO1_FUNC);
707 	mbar2_writeLong(MCFSIM_GPIO_EN, CONFIG_SYS_GPIO_EN);
708 	mbar2_writeLong(MCFSIM_GPIO1_EN, CONFIG_SYS_GPIO1_EN);
709 	mbar2_writeLong(MCFSIM_GPIO_OUT, CONFIG_SYS_GPIO_OUT);
710 	mbar2_writeLong(MCFSIM_GPIO1_OUT, CONFIG_SYS_GPIO1_OUT);
711 
712 	/*
713 	 *  dBug Compliance:
714 	 *    You can verify these values by using dBug's 'ird'
715 	 *    (Internal Register Display) command
716 	 *    ~Jeremy
717 	 *
718 	 */
719 	mbar_writeByte(MCFSIM_MPARK, 0x30);	/* 5249 Internal Core takes priority over DMA */
720 	mbar_writeByte(MCFSIM_SYPCR, 0x00);
721 	mbar_writeByte(MCFSIM_SWIVR, 0x0f);
722 	mbar_writeByte(MCFSIM_SWSR, 0x00);
723 	mbar_writeLong(MCFSIM_IMR, 0xfffffbff);
724 	mbar_writeByte(MCFSIM_SWDICR, 0x00);
725 	mbar_writeByte(MCFSIM_TIMER1ICR, 0x00);
726 	mbar_writeByte(MCFSIM_TIMER2ICR, 0x88);
727 	mbar_writeByte(MCFSIM_I2CICR, 0x00);
728 	mbar_writeByte(MCFSIM_UART1ICR, 0x00);
729 	mbar_writeByte(MCFSIM_UART2ICR, 0x00);
730 	mbar_writeByte(MCFSIM_ICR6, 0x00);
731 	mbar_writeByte(MCFSIM_ICR7, 0x00);
732 	mbar_writeByte(MCFSIM_ICR8, 0x00);
733 	mbar_writeByte(MCFSIM_ICR9, 0x00);
734 	mbar_writeByte(MCFSIM_QSPIICR, 0x00);
735 
736 	mbar2_writeLong(MCFSIM_GPIO_INT_EN, 0x00000080);
737 	mbar2_writeByte(MCFSIM_INTBASE, 0x40);	/* Base interrupts at 64 */
738 	mbar2_writeByte(MCFSIM_SPURVEC, 0x00);
739 	mbar2_writeLong(MCFSIM_IDECONFIG1, 0x00000020);	/* Enable a 1 cycle pre-drive cycle on CS1 */
740 
741 	/* Setup interrupt priorities for gpio7 */
742 	/* mbar2_writeLong(MCFSIM_INTLEV5, 0x70000000); */
743 
744 	/* IDE Config registers */
745 	mbar2_writeLong(MCFSIM_IDECONFIG1, 0x00000020);
746 	mbar2_writeLong(MCFSIM_IDECONFIG2, 0x00000000);
747 
748 	/* FlexBus Chipselect */
749 	init_fbcs();
750 
751 	/* enable instruction cache now */
752 	icache_enable();
753 }
754 
755 /*
756  * initialize higher level parts of CPU like timers
757  */
758 int cpu_init_r(void)
759 {
760 	return (0);
761 }
762 
763 void uart_port_conf(int port)
764 {
765 }
766 #endif				/* #if defined(CONFIG_M5249) */
767