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      1 /*	$NetBSD: gumstix_machdep.c,v 1.75 2023/10/12 11:33:37 skrll Exp $ */
      2 /*
      3  * Copyright (C) 2005, 2006, 2007  WIDE Project and SOUM Corporation.
      4  * All rights reserved.
      5  *
      6  * Written by Takashi Kiyohara and Susumu Miki for WIDE Project and SOUM
      7  * Corporation.
      8  *
      9  * Redistribution and use in source and binary forms, with or without
     10  * modification, are permitted provided that the following conditions
     11  * are met:
     12  * 1. Redistributions of source code must retain the above copyright
     13  *    notice, this list of conditions and the following disclaimer.
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  * 3. Neither the name of the project nor the name of SOUM Corporation
     18  *    may be used to endorse or promote products derived from this software
     19  *    without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE PROJECT and SOUM CORPORATION ``AS IS''
     22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     23  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT AND SOUM CORPORATION
     25  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  * POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 /*
     34  * Copyright (c) 2002, 2003, 2004, 2005  Genetec Corporation.
     35  * All rights reserved.
     36  *
     37  * Written by Hiroyuki Bessho for Genetec Corporation.
     38  *
     39  * Redistribution and use in source and binary forms, with or without
     40  * modification, are permitted provided that the following conditions
     41  * are met:
     42  * 1. Redistributions of source code must retain the above copyright
     43  *    notice, this list of conditions and the following disclaimer.
     44  * 2. Redistributions in binary form must reproduce the above copyright
     45  *    notice, this list of conditions and the following disclaimer in the
     46  *    documentation and/or other materials provided with the distribution.
     47  * 3. The name of Genetec Corporation may not be used to endorse or
     48  *    promote products derived from this software without specific prior
     49  *    written permission.
     50  *
     51  * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
     52  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     53  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     54  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL GENETEC CORPORATION
     55  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     56  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     57  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     58  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     59  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     60  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     61  * POSSIBILITY OF SUCH DAMAGE.
     62  *
     63  * Machine dependent functions for kernel setup for Genetec G4250EBX
     64  * evaluation board.
     65  *
     66  * Based on iq80310_machhdep.c
     67  */
     68 /*
     69  * Copyright (c) 2001 Wasabi Systems, Inc.
     70  * All rights reserved.
     71  *
     72  * Written by Jason R. Thorpe for Wasabi Systems, Inc.
     73  *
     74  * Redistribution and use in source and binary forms, with or without
     75  * modification, are permitted provided that the following conditions
     76  * are met:
     77  * 1. Redistributions of source code must retain the above copyright
     78  *    notice, this list of conditions and the following disclaimer.
     79  * 2. Redistributions in binary form must reproduce the above copyright
     80  *    notice, this list of conditions and the following disclaimer in the
     81  *    documentation and/or other materials provided with the distribution.
     82  * 3. All advertising materials mentioning features or use of this software
     83  *    must display the following acknowledgement:
     84  *	This product includes software developed for the NetBSD Project by
     85  *	Wasabi Systems, Inc.
     86  * 4. The name of Wasabi Systems, Inc. may not be used to endorse
     87  *    or promote products derived from this software without specific prior
     88  *    written permission.
     89  *
     90  * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
     91  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     92  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     93  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL WASABI SYSTEMS, INC
     94  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     95  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     96  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     97  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     98  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     99  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
    100  * POSSIBILITY OF SUCH DAMAGE.
    101  */
    102 
    103 /*
    104  * Copyright (c) 1997,1998 Mark Brinicombe.
    105  * Copyright (c) 1997,1998 Causality Limited.
    106  * All rights reserved.
    107  *
    108  * Redistribution and use in source and binary forms, with or without
    109  * modification, are permitted provided that the following conditions
    110  * are met:
    111  * 1. Redistributions of source code must retain the above copyright
    112  *    notice, this list of conditions and the following disclaimer.
    113  * 2. Redistributions in binary form must reproduce the above copyright
    114  *    notice, this list of conditions and the following disclaimer in the
    115  *    documentation and/or other materials provided with the distribution.
    116  * 3. All advertising materials mentioning features or use of this software
    117  *    must display the following acknowledgement:
    118  *	This product includes software developed by Mark Brinicombe
    119  *	for the NetBSD Project.
    120  * 4. The name of the company nor the name of the author may be used to
    121  *    endorse or promote products derived from this software without specific
    122  *    prior written permission.
    123  *
    124  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
    125  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
    126  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
    127  * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
    128  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
    129  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
    130  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
    131  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
    132  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
    133  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
    134  * SUCH DAMAGE.
    135  *
    136  * Machine dependent functions for kernel setup for Intel IQ80310 evaluation
    137  * boards using RedBoot firmware.
    138  */
    139 
    140 #include "opt_arm_debug.h"
    141 #include "opt_com.h"
    142 #include "opt_console.h"
    143 #include "opt_cputypes.h"
    144 #include "opt_evbarm_boardtype.h"
    145 #include "opt_gumstix.h"
    146 #include "opt_kgdb.h"
    147 
    148 #include <sys/param.h>
    149 #include <sys/conf.h>
    150 #include <sys/device.h>
    151 #include <sys/exec.h>
    152 #include <sys/kernel.h>
    153 #include <sys/proc.h>
    154 #include <sys/reboot.h>
    155 #include <sys/systm.h>
    156 #include <sys/termios.h>
    157 #include <sys/bus.h>
    158 #include <sys/cpu.h>
    159 #include <sys/gpio.h>
    160 
    161 #include <prop/proplib.h>
    162 
    163 #include <uvm/uvm_extern.h>
    164 
    165 #include <arm/mainbus/mainbus.h>	/* don't reorder */
    166 
    167 #include <machine/autoconf.h>		/* don't reorder */
    168 #include <machine/bootconfig.h>
    169 #include <arm/locore.h>
    170 
    171 #include <arm/arm32/machdep.h>
    172 
    173 #include <arm/xscale/pxa2x0reg.h>
    174 #include <arm/xscale/pxa2x0var.h>
    175 #include <arm/xscale/pxa2x0_gpio.h>
    176 #include <evbarm/gumstix/gumstixreg.h>
    177 #include <evbarm/gumstix/gumstixvar.h>
    178 
    179 #include <dev/cons.h>
    180 
    181 #ifdef KGDB
    182 #include <sys/kgdb.h>
    183 #endif
    184 
    185 #ifdef VERBOSE_INIT_ARM
    186 #define VPRINTF(...)	printf(__VA_ARGS__)
    187 #else
    188 #define VPRINTF(...)	__nothing
    189 #endif
    190 
    191 /*
    192  * The range 0xc1000000 - 0xfd000000 is available for kernel VM space
    193  * Core-logic registers and I/O mappings occupy
    194  *
    195  *    0xfd000000 - 0xfd800000	on gumstix
    196  */
    197 #ifndef KERNEL_VM_BASE
    198 #define	KERNEL_VM_BASE		0xc8000000
    199 #endif
    200 #define KERNEL_VM_SIZE		0x35000000
    201 
    202 BootConfig bootconfig;		/* Boot config storage */
    203 static char bootargs[MAX_BOOT_STRING];
    204 const size_t bootargs_len = sizeof(bootargs) - 1;	/* without nul */
    205 char *boot_args = NULL;
    206 
    207 uint32_t system_serial_high;
    208 uint32_t system_serial_low;
    209 
    210 /* Prototypes */
    211 #if defined(GUMSTIX)
    212 static void	read_system_serial(void);
    213 #endif
    214 static void	process_kernel_args(int, char *[]);
    215 static void	process_kernel_args_liner(char *);
    216 #ifdef KGDB
    217 static void	kgdb_port_init(void);
    218 #endif
    219 static void	gumstix_device_register(device_t, void *);
    220 
    221 bs_protos(bs_notimpl);
    222 
    223 #include "com.h"
    224 #if NCOM > 0
    225 #include <dev/ic/comreg.h>
    226 #include <dev/ic/comvar.h>
    227 #endif
    228 
    229 #if defined(CPU_XSCALE)
    230 #include "lcd.h"
    231 #endif
    232 
    233 #ifndef CONSPEED
    234 #define CONSPEED B115200	/* It's a setting of the default of u-boot */
    235 #endif
    236 #ifndef CONMODE
    237 #define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
    238 #endif
    239 
    240 int comcnspeed = CONSPEED;
    241 int comcnmode = CONMODE;
    242 
    243 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE
    244 static char console[16];
    245 #endif
    246 
    247 const struct tifb_panel_info *tifb_panel_info = NULL;
    248 /* Use TPS65217 White LED Driver */
    249 bool use_tps65217_wled = false;
    250 
    251 extern void gxio_config(void);
    252 extern void gxio_config_expansion(char *);
    253 
    254 
    255 static inline pd_entry_t *
    256 read_ttb(void)
    257 {
    258 	long ttb;
    259 
    260 	__asm volatile("mrc	p15, 0, %0, c2, c0, 0" : "=r" (ttb));
    261 
    262 	return (pd_entry_t *)(ttb & ~((1<<14)-1));
    263 }
    264 
    265 /*
    266  * Static device mappings. These peripheral registers are mapped at
    267  * fixed virtual addresses very early in initarm() so that we can use
    268  * them while booting the kernel, and stay at the same address
    269  * throughout whole kernel's life time.
    270  *
    271  * We use this table twice; once with bootstrap page table, and once
    272  * with kernel's page table which we build up in initarm().
    273  *
    274  * Since we map these registers into the bootstrap page table using
    275  * pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map
    276  * registers segment-aligned and segment-rounded in order to avoid
    277  * using the 2nd page tables.
    278  */
    279 
    280 static const struct pmap_devmap gumstix_devmap[] = {
    281 #if defined(GUMSTIX)
    282 	DEVMAP_ENTRY(
    283 		GUMSTIX_GPIO_VBASE,
    284 		PXA2X0_GPIO_BASE,
    285 		PXA250_GPIO_SIZE
    286 	),
    287 	DEVMAP_ENTRY(
    288 		GUMSTIX_CLKMAN_VBASE,
    289 		PXA2X0_CLKMAN_BASE,
    290 		PXA2X0_CLKMAN_SIZE
    291 	),
    292 	DEVMAP_ENTRY(
    293 		GUMSTIX_INTCTL_VBASE,
    294 		PXA2X0_INTCTL_BASE,
    295 		PXA2X0_INTCTL_SIZE
    296 	),
    297 	DEVMAP_ENTRY(
    298 		GUMSTIX_FFUART_VBASE,
    299 		PXA2X0_FFUART_BASE,
    300 		4 * COM_NPORTS
    301 	),
    302 	DEVMAP_ENTRY(
    303 		GUMSTIX_STUART_VBASE,
    304 		PXA2X0_STUART_BASE,
    305 		4 * COM_NPORTS
    306 	),
    307 	DEVMAP_ENTRY(
    308 		GUMSTIX_BTUART_VBASE,
    309 		PXA2X0_BTUART_BASE,
    310 		4 * COM_NPORTS
    311 	),
    312 	DEVMAP_ENTRY(
    313 		GUMSTIX_HWUART_VBASE,
    314 		PXA2X0_HWUART_BASE,
    315 		4 * COM_NPORTS
    316 	),
    317 	DEVMAP_ENTRY(
    318 		GUMSTIX_LCDC_VBASE,
    319 		PXA2X0_LCDC_BASE,
    320 		4 * COM_NPORTS
    321 	),
    322 #endif
    323 	DEVMAP_ENTRY_END
    324 };
    325 
    326 extern uint32_t *uboot_args;
    327 
    328 /*
    329  * vaddr_t initarm(...)
    330  *
    331  * Initial entry point on startup. This gets called before main() is
    332  * entered.
    333  * It should be responsible for setting up everything that must be
    334  * in place when main is called.
    335  * This includes
    336  *   Taking a copy of the boot configuration structure.
    337  *   Initialising the physical console so characters can be printed.
    338  *   Setting up page tables for the kernel
    339  *   Relocating the kernel to the bottom of physical memory
    340  */
    341 vaddr_t
    342 initarm(void *arg)
    343 {
    344 	extern char KERNEL_BASE_phys[];
    345 	uint32_t ram_size = 0x400000;
    346 	enum { r0 = 0, r1 = 1, r2 = 2, r3 = 3 }; /* args from u-boot */
    347 
    348 #if defined(CPU_XSCALE)
    349 
    350 	/*
    351 	 * We mapped PA == VA in gumstix_start.S.
    352 	 * Also mapped SDRAM to KERNEL_BASE first 64Mbyte only with cachable.
    353 	 *
    354 	 * Gumstix (basix, connex, verdex, verdex-pro):
    355 	 * Physical Address Range     Description
    356 	 * -----------------------    ----------------------------------
    357 	 * 0x00000000 - 0x00ffffff    flash Memory   (16MB or 4MB)
    358 	 * 0x40000000 - 0x480fffff    Processor Registers
    359 	 * 0xa0000000 - 0xa3ffffff    SDRAM Bank 0 (64MB or 128MB)
    360 	 * 0xc0000000 - 0xc3ffffff    KERNEL_BASE
    361 	 */
    362 	xscale_cache_clean_addr = 0xff000000U;
    363 
    364 	cpu_reset_address = NULL;
    365 #endif
    366 
    367 	/*
    368 	 * Heads up ... Setup the CPU / MMU / TLB functions
    369 	 */
    370 	if (set_cpufuncs())
    371 		panic("cpu not recognized!");
    372 
    373 	/* map some peripheral registers at static I/O area */
    374 	pmap_devmap_bootstrap((vaddr_t)read_ttb(), gumstix_devmap);
    375 
    376 #if defined(CPU_XSCALE)
    377 	/* start 32.768kHz OSC */
    378 	ioreg_write(GUMSTIX_CLKMAN_VBASE + CLKMAN_OSCC, OSCC_OON);
    379 
    380 	/* Get ready for splfoo() */
    381 	pxa2x0_intr_bootstrap(GUMSTIX_INTCTL_VBASE);
    382 
    383 	/* setup GPIO for {FF,ST,HW}UART. */
    384 	pxa2x0_gpio_bootstrap(GUMSTIX_GPIO_VBASE);
    385 
    386 	pxa2x0_clkman_bootstrap(GUMSTIX_CLKMAN_VBASE);
    387 #endif
    388 
    389 	cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT);
    390 
    391 	/* configure MUX, GPIO and CLK. */
    392 	gxio_config();
    393 
    394 #ifndef GUMSTIX_NETBSD_ARGS_CONSOLE
    395 	consinit();
    396 #endif
    397 #ifdef KGDB
    398 	kgdb_port_init();
    399 #endif
    400 
    401 	/*
    402 	 * Examine the boot args string for options we need to know about
    403 	 * now.
    404 	 */
    405 #if defined(GUMSTIX)
    406 #define SDRAM_START	0xa0000000UL
    407 #endif
    408 	if (uboot_args[r0] < SDRAM_START ||
    409 	    uboot_args[r0] >= SDRAM_START + ram_size)
    410 		/* Maybe r0 is 'argc'.  We are booted by command 'go'. */
    411 		process_kernel_args(uboot_args[r0], (char **)uboot_args[r1]);
    412 	else
    413 		/*
    414 		 * Maybe r3 is 'boot args string' of 'bootm'.  This string is
    415 		 * linely.
    416 		 */
    417 		process_kernel_args_liner((char *)uboot_args[r3]);
    418 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE
    419 	consinit();
    420 #endif
    421 
    422 	/* Talk to the user */
    423 #define BDSTR(s)	_BDSTR(s)
    424 #define _BDSTR(s)	#s
    425 	printf("\nNetBSD/evbarm (" BDSTR(EVBARM_BOARDTYPE) ") booting ...\n");
    426 
    427 	/* Read system serial */
    428 #if defined(GUMSTIX)
    429 	read_system_serial();
    430 #endif
    431 
    432 	VPRINTF("initarm: Configuring system ...\n");
    433 
    434 	/* Fake bootconfig structure for the benefit of pmap.c */
    435 	/* XXX must make the memory description h/w independent */
    436 	bootconfig.dramblocks = 1;
    437 	bootconfig.dram[0].address = SDRAM_START;
    438 	bootconfig.dram[0].pages = ram_size / PAGE_SIZE;
    439 
    440 	KASSERT(ram_size <= KERNEL_VM_BASE - KERNEL_BASE);
    441 
    442 	arm32_bootmem_init(bootconfig.dram[0].address, ram_size,
    443 	    (uintptr_t) KERNEL_BASE_phys);
    444 	arm32_kernel_vm_init(KERNEL_VM_BASE,
    445 #if defined(CPU_XSCALE)
    446 	    ARM_VECTORS_LOW,
    447 #endif
    448 	    0, gumstix_devmap, true);
    449 
    450 	evbarm_device_register = gumstix_device_register;
    451 
    452 	return initarm_common(KERNEL_VM_BASE, KERNEL_VM_SIZE, NULL, 0);
    453 }
    454 
    455 #if defined(GUMSTIX)
    456 static void
    457 read_system_serial(void)
    458 {
    459 #define GUMSTIX_SYSTEM_SERIAL_ADDR	0
    460 #define GUMSTIX_SYSTEM_SERIAL_SIZE	8
    461 #define FLASH_OFFSET_INTEL_PROTECTION	0x81
    462 #define FLASH_OFFSET_USER_PROTECTION	0x85
    463 #define FLASH_CMD_READ_ID		0x90
    464 #define FLASH_CMD_RESET			0xff
    465 	int i;
    466 	char system_serial[GUMSTIX_SYSTEM_SERIAL_SIZE], *src;
    467 	char x;
    468 
    469 /*
    470  * XXXGCC12.
    471  * This accesses beyond what "char *src" is known to supply.
    472  */
    473 #pragma GCC push_options
    474 #pragma GCC diagnostic ignored "-Warray-bounds"
    475 
    476 	src = (char *)(FLASH_OFFSET_USER_PROTECTION * 2 /*word*/);
    477 	*(volatile uint16_t *)0 = FLASH_CMD_READ_ID;
    478 	memcpy(system_serial,
    479 	    src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial));
    480 	*(volatile uint16_t *)0 = FLASH_CMD_RESET;
    481 
    482 	for (i = 1, x = system_serial[0]; i < sizeof (system_serial); i++)
    483 		x &= system_serial[i];
    484 	if (x == 0xff) {
    485 		src = (char *)(FLASH_OFFSET_INTEL_PROTECTION * 2 /*word*/);
    486 		*(volatile uint16_t *)0 = FLASH_CMD_READ_ID;
    487 		memcpy(system_serial,
    488 		    src + GUMSTIX_SYSTEM_SERIAL_ADDR, sizeof (system_serial));
    489 		*(volatile uint16_t *)0 = FLASH_CMD_RESET;
    490 
    491 		/*
    492 		 * XXXX: Don't need ???
    493 		 * gumstix_serial_hash(system_serial);
    494 		 */
    495 	}
    496 #pragma GCC pop_options
    497 	system_serial_high = system_serial[0] << 24 | system_serial[1] << 16 |
    498 	    system_serial[2] << 8 | system_serial[3];
    499 	system_serial_low = system_serial[4] << 24 | system_serial[5] << 16 |
    500 	    system_serial[6] << 8 | system_serial[7];
    501 
    502 	printf("system serial: 0x");
    503 	for (i = 0; i < sizeof (system_serial); i++)
    504 		printf("%02x", system_serial[i]);
    505 	printf("\n");
    506 }
    507 #endif
    508 
    509 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER
    510 static const char busheader_name[] = "busheader=";
    511 #endif
    512 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \
    513     defined(GUMSTIX_NETBSD_ARGS_EXPANSION)
    514 static const char expansion_name[] = "expansion=";
    515 #endif
    516 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE
    517 static const char console_name[] = "console=";
    518 #endif
    519 static void
    520 process_kernel_args(int argc, char *argv[])
    521 {
    522 	int gxio_configured = 0, i, j;
    523 
    524 	boothowto = 0;
    525 
    526 	for (i = 1, j = 0; i < argc; i++) {
    527 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER
    528 		if (!strncmp(argv[i], busheader_name, strlen(busheader_name))) {
    529 			/* Configure for GPIOs of busheader side */
    530 			gxio_config_expansion(argv[i] + strlen(busheader_name));
    531 			gxio_configured = 1;
    532 			continue;
    533 		}
    534 #endif
    535 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \
    536     defined(GUMSTIX_NETBSD_ARGS_EXPANSION)
    537 		if (!strncmp(argv[i], expansion_name, strlen(expansion_name))) {
    538 			/* Configure expansion */
    539 			gxio_config_expansion(argv[i] + strlen(expansion_name));
    540 			gxio_configured = 1;
    541 			continue;
    542 		}
    543 #endif
    544 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE
    545 		if (!strncmp(argv[i], console_name, strlen(console_name))) {
    546 			strncpy(console, argv[i] + strlen(console_name),
    547 			    sizeof(console));
    548 			consinit();
    549 		}
    550 #endif
    551 		if (j == bootargs_len) {
    552 			*(bootargs + j) = '\0';
    553 			continue;
    554 		}
    555 		if (j != 0)
    556 			*(bootargs + j++) = ' ';
    557 		strncpy(bootargs + j, argv[i], bootargs_len - j);
    558 		bootargs[bootargs_len] = '\0';
    559 		j += strlen(argv[i]);
    560 	}
    561 	boot_args = bootargs;
    562 
    563 	parse_mi_bootargs(boot_args);
    564 
    565 	if (!gxio_configured)
    566 		gxio_config_expansion(NULL);
    567 }
    568 
    569 static void
    570 process_kernel_args_liner(char *args)
    571 {
    572 	int i = 0;
    573 	char *p = NULL;
    574 
    575 	boothowto = 0;
    576 
    577 	strncpy(bootargs, args, sizeof(bootargs));
    578 #if defined(GUMSTIX_NETBSD_ARGS_BUSHEADER) || \
    579     defined(GUMSTIX_NETBSD_ARGS_EXPANSION)
    580 	{
    581 		char *q;
    582 
    583 		if ((p = strstr(bootargs, expansion_name)))
    584 			q = p + strlen(expansion_name);
    585 #ifdef GUMSTIX_NETBSD_ARGS_BUSHEADER
    586 		else if ((p = strstr(bootargs, busheader_name)))
    587 			q = p + strlen(busheader_name);
    588 #endif
    589 		if (p) {
    590 			char expansion[256], c;
    591 
    592 			i = 0;
    593 			do {
    594 				c = *(q + i);
    595 				if (c == ' ')
    596 					c = '\0';
    597 				expansion[i++] = c;
    598 			} while (c != '\0' && i < sizeof(expansion));
    599 			gxio_config_expansion(expansion);
    600 			strcpy(p, q + i);
    601 		}
    602 	}
    603 #endif
    604 	if (p == NULL)
    605 		gxio_config_expansion(NULL);
    606 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE
    607 	p = strstr(bootargs, console_name);
    608 	if (p != NULL) {
    609 		char c;
    610 
    611 		i = 0;
    612 		do {
    613 			c = *(p + strlen(console_name) + i);
    614 			if (c == ' ')
    615 				c = '\0';
    616 			console[i++] = c;
    617 		} while (c != '\0' && i < sizeof(console));
    618 		consinit();
    619 		strcpy(p, p + strlen(console_name) + i);
    620 	}
    621 #endif
    622 	boot_args = bootargs;
    623 
    624 	parse_mi_bootargs(boot_args);
    625 }
    626 
    627 #ifdef KGDB
    628 #ifndef KGDB_DEVNAME
    629 #define KGDB_DEVNAME	"ffuart"
    630 #endif
    631 const char kgdb_devname[] = KGDB_DEVNAME;
    632 
    633 #ifndef KGDB_DEVRATE
    634 #define KGDB_DEVRATE	CONSPEED
    635 #endif
    636 int kgdb_devrate = KGDB_DEVRATE;
    637 
    638 #if (NCOM > 0)
    639 #ifndef KGDB_DEVMODE
    640 #define KGDB_DEVMODE	CONMODE
    641 #endif
    642 int comkgdbmode = KGDB_DEVMODE;
    643 #endif /* NCOM */
    644 
    645 #endif /* KGDB */
    646 
    647 
    648 void
    649 consinit(void)
    650 {
    651 	static int consinit_called = 0;
    652 
    653 	if (consinit_called != 0)
    654 		return;
    655 
    656 	consinit_called = 1;
    657 
    658 #if NCOM > 0
    659 
    660 #ifdef GUMSTIX_NETBSD_ARGS_CONSOLE
    661 	/* Maybe passed Linux's bootargs 'console=ttyS?,<speed>...' */
    662 	if (strncmp(console, "ttyS", 4) == 0 && console[5] == ',') {
    663 		int i;
    664 
    665 		comcnspeed = 0;
    666 		for (i = 6; i < strlen(console) && isdigit(console[i]); i++)
    667 			comcnspeed = comcnspeed * 10 + (console[i] - '0');
    668 	}
    669 #endif
    670 
    671 #if defined(GUMSTIX)
    672 
    673 #ifdef FFUARTCONSOLE
    674 #ifdef KGDB
    675 	if (strcmp(kgdb_devname, "ffuart") == 0){
    676 		/* port is reserved for kgdb */
    677 	} else
    678 #endif
    679 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE)
    680 	if (console[0] == '\0' || strcasecmp(console, "ffuart") == 0 ||
    681 	    strncmp(console, "ttyS0,", 6) == 0)
    682 #endif
    683 	{
    684 		int rv;
    685 
    686 		rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_FFUART_BASE,
    687 		    comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode);
    688 		if (rv == 0) {
    689 			pxa2x0_clkman_config(CKEN_FFUART, 1);
    690 			return;
    691 		}
    692 	}
    693 #endif /* FFUARTCONSOLE */
    694 
    695 #ifdef STUARTCONSOLE
    696 #ifdef KGDB
    697 	if (strcmp(kgdb_devname, "stuart") == 0) {
    698 		/* port is reserved for kgdb */
    699 	} else
    700 #endif
    701 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE)
    702 	if (console[0] == '\0' || strcasecmp(console, "stuart") == 0)
    703 #endif
    704 	{
    705 		int rv;
    706 
    707 		rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_STUART_BASE,
    708 		    comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode);
    709 		if (rv == 0) {
    710 			pxa2x0_clkman_config(CKEN_STUART, 1);
    711 			return;
    712 		}
    713 	}
    714 #endif /* STUARTCONSOLE */
    715 
    716 #ifdef BTUARTCONSOLE
    717 #ifdef KGDB
    718 	if (strcmp(kgdb_devname, "btuart") == 0) {
    719 		/* port is reserved for kgdb */
    720 	} else
    721 #endif
    722 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE)
    723 	if (console[0] == '\0' || strcasecmp(console, "btuart") == 0)
    724 #endif
    725 	{
    726 		int rv;
    727 
    728 		rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_BTUART_BASE,
    729 		    comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode);
    730 		if (rv == 0) {
    731 			pxa2x0_clkman_config(CKEN_BTUART, 1);
    732 			return;
    733 		}
    734 	}
    735 #endif /* BTUARTCONSOLE */
    736 
    737 #ifdef HWUARTCONSOLE
    738 #ifdef KGDB
    739 	if (strcmp(kgdb_devname, "hwuart") == 0) {
    740 		/* port is reserved for kgdb */
    741 	} else
    742 #endif
    743 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE)
    744 	if (console[0] == '\0' || strcasecmp(console, "hwuart") == 0)
    745 #endif
    746 	{
    747 		rv = comcnattach(&pxa2x0_a4x_bs_tag, PXA2X0_HWUART_BASE,
    748 		    comcnspeed, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comcnmode);
    749 		if (rv == 0) {
    750 			pxa2x0_clkman_config(CKEN_HWUART, 1);
    751 			return;
    752 		}
    753 	}
    754 #endif /* HWUARTCONSOLE */
    755 
    756 #endif /* GUMSTIX */
    757 
    758 #endif /* NCOM */
    759 
    760 #if NLCD > 0
    761 #if defined(GUMSTIX_NETBSD_ARGS_CONSOLE)
    762 	if (console[0] == '\0' || strcasecmp(console, "lcd") == 0)
    763 #endif
    764 	{
    765 		gxlcd_cnattach();
    766 	}
    767 #endif
    768 }
    769 
    770 #ifdef KGDB
    771 static void
    772 kgdb_port_init(void)
    773 {
    774 #if (NCOM > 0) && defined(COM_PXA2X0)
    775 	paddr_t paddr = 0;
    776 	int cken = 0;
    777 
    778 	if (0 == strcmp(kgdb_devname, "ffuart")) {
    779 		paddr = PXA2X0_FFUART_BASE;
    780 		cken = CKEN_FFUART;
    781 	} else if (0 == strcmp(kgdb_devname, "stuart")) {
    782 		paddr = PXA2X0_STUART_BASE;
    783 		cken = CKEN_STUART;
    784 	} else if (0 == strcmp(kgdb_devname, "btuart")) {
    785 		paddr = PXA2X0_BTUART_BASE;
    786 		cken = CKEN_BTUART;
    787 	} else if (0 == strcmp(kgdb_devname, "hwuart")) {
    788 		paddr = PXA2X0_HWUART_BASE;
    789 		cken = CKEN_HWUART;
    790 	}
    791 
    792 	if (paddr &&
    793 	    0 == com_kgdb_attach(&pxa2x0_a4x_bs_tag, paddr,
    794 		kgdb_devrate, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comkgdbmode)) {
    795 
    796 		pxa2x0_clkman_config(cken, 1);
    797 	}
    798 
    799 #endif
    800 }
    801 #endif
    802 
    803 static void
    804 gumstix_device_register(device_t dev, void *aux)
    805 {
    806 	prop_dictionary_t dict = device_properties(dev);
    807 
    808 	if (device_is_a(dev, "ehci")) {
    809 		prop_dictionary_set_uint16(dict, "dpll5-m", 443);
    810 		prop_dictionary_set_uint16(dict, "dpll5-n", 11);
    811 		prop_dictionary_set_uint16(dict, "dpll5-m2", 4);
    812 	}
    813 	if (device_is_a(dev, "ohci")) {
    814 		if (prop_dictionary_set_bool(dict,
    815 		    "Ganged-power-mask-on-port1", 1) == false) {
    816 			printf("WARNING: unable to set power-mask for port1"
    817 			    " property for %s\n", device_xname(dev));
    818 		}
    819 		if (prop_dictionary_set_bool(dict,
    820 		    "Ganged-power-mask-on-port2", 1) == false) {
    821 			printf("WARNING: unable to set power-mask for port2"
    822 			    " property for %s\n", device_xname(dev));
    823 		}
    824 		if (prop_dictionary_set_bool(dict,
    825 		    "Ganged-power-mask-on-port3", 1) == false) {
    826 			printf("WARNING: unable to set power-mask for port3"
    827 			    " property for %s\n", device_xname(dev));
    828 		}
    829 	}
    830 }
    831