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572 lines
16 KiB
C
572 lines
16 KiB
C
/* $NetBSD: kobo_machdep.c,v 1.3 2015/05/07 04:13:47 hkenken Exp $ */
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/*
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* Copyright (c) 2002, 2003, 2005, 2010 Genetec Corporation.
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* All rights reserved.
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* Written by Hiroyuki Bessho for Genetec Corporation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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* Machine dependent functions for kernel setup for RAKUTEN Kobo.
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* Based on iq80310_machhdep.c
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*/
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/*
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* Copyright (c) 2001 Wasabi Systems, Inc.
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* All rights reserved.
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*
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* Written by Jason R. Thorpe for Wasabi Systems, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project by
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* Wasabi Systems, Inc.
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* 4. The name of Wasabi Systems, Inc. may not be used to endorse
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* or promote products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1997,1998 Mark Brinicombe.
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* Copyright (c) 1997,1998 Causality Limited.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Mark Brinicombe
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* for the NetBSD Project.
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* 4. The name of the company nor the name of the author may be used to
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* endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Machine dependent functions for kernel setup for Intel IQ80310 evaluation
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* boards using RedBoot firmware.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: kobo_machdep.c,v 1.3 2015/05/07 04:13:47 hkenken Exp $");
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#include "opt_evbarm_boardtype.h"
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#include "opt_arm_debug.h"
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#include "opt_cputypes.h"
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#include "opt_ddb.h"
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#include "opt_kgdb.h"
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#include "opt_md.h"
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#include "opt_com.h"
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#include "imxuart.h"
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#include "opt_imxuart.h"
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#include "opt_imx.h"
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#include "opt_machdep.h"
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#include <sys/param.h>
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#include <sys/device.h>
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#include <sys/reboot.h>
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#include <sys/termios.h>
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#include <sys/bus.h>
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#include <machine/db_machdep.h>
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#ifdef KGDB
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#include <sys/kgdb.h>
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#endif
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#include <machine/bootconfig.h>
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#include <arm/arm32/machdep.h>
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#include <arm/imx/imx51reg.h>
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#include <arm/imx/imx51var.h>
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#include <arm/imx/imxuartreg.h>
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#include <arm/imx/imxuartvar.h>
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#include <arm/imx/imx50_iomuxreg.h>
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#include <arm/imx/imxgpiovar.h>
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#include <evbarm/kobo/kobo.h>
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#include <evbarm/kobo/kobo_reg.h>
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/* Kernel text starts 1MB in from the bottom of the kernel address space. */
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#define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00100000)
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BootConfig bootconfig; /* Boot config storage */
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static char bootargs[MAX_BOOT_STRING];
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char *boot_args = NULL;
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extern char KERNEL_BASE_phys[];
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/*
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* Macros to translate between physical and virtual for a subset of the
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* kernel address space. *Not* for general use.
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*/
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#define KERNEL_BASE_PHYS ((paddr_t)KERNEL_BASE_phys)
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void consinit(void);
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#ifdef KGDB
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void kgdb_port_init(void);
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#endif
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static void init_clocks(void);
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static void setup_ioports(void);
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#ifndef CONSPEED
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#define CONSPEED B115200 /* What RedBoot uses */
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#endif
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#ifndef CONMODE
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#define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
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#endif
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int comcnspeed = CONSPEED;
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int comcnmode = CONMODE;
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/*
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* Static device mappings. These peripheral registers are mapped at
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* fixed virtual addresses very early in initarm() so that we can use
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* them while booting the kernel, and stay at the same address
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* throughout whole kernel's life time.
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*
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* We use this table twice; once with bootstrap page table, and once
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* with kernel's page table which we build up in initarm().
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*
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* Since we map these registers into the bootstrap page table using
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* pmap_devmap_bootstrap() which calls pmap_map_chunk(), we map
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* registers segment-aligned and segment-rounded in order to avoid
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* using the 2nd page tables.
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*/
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#define _A(a) ((a) & ~L1_S_OFFSET)
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#define _S(s) (((s) + L1_S_SIZE - 1) & ~(L1_S_SIZE-1))
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const struct pmap_devmap kobo_devmap[] = {
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{
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/* for UART2, IOMUXC */
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.pd_va = _A(KOBO_IO_VBASE0),
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.pd_pa = _A(KOBO_IO_PBASE0),
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.pd_size = _S(L1_S_SIZE * 4),
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.pd_prot = VM_PROT_READ|VM_PROT_WRITE,
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.pd_cache = PTE_NOCACHE
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},
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{0}
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};
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#undef _A
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#undef _S
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#ifndef MEMSTART
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#define MEMSTART 0x70000000
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#endif
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#ifndef MEMSIZE
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#define MEMSIZE 256
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#endif
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static void
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init_clocks(void)
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{
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cortex_pmc_ccnt_init();
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}
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struct iomux_setup {
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/* iomux registers are 32-bit wide, but upper 16 bits are not
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* used. */
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uint16_t reg;
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uint16_t val;
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};
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#define IOMUX_M(padname, mux) \
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IOMUX_DATA(__CONCAT(IOMUXC_SW_MUX_CTL_PAD_,padname), mux)
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#define IOMUX_P(padname, pad) \
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IOMUX_DATA(__CONCAT(IOMUXC_SW_PAD_CTL_PAD_,padname), pad)
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#define IOMUX_MP(padname, mux, pad) \
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IOMUX_M(padname, mux), \
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IOMUX_P(padname, pad)
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#define IOMUX_DATA(offset, value) \
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{ \
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.reg = (offset), \
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.val = (value), \
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}
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const struct iomux_setup iomux_setup_data[] = {
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#define HYS PAD_CTL_HYS
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#define ODE PAD_CTL_ODE
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#define DSEHIGH PAD_CTL_DSE_HIGH
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#define DSEMID PAD_CTL_DSE_MID
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#define DSELOW PAD_CTL_DSE_LOW
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#define DSEMAX PAD_CTL_DSE_MAX
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#define SRE PAD_CTL_SRE
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#define KEEPER PAD_CTL_KEEPER
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#define PULL PAD_CTL_PULL
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#define PU_22K PAD_CTL_PUS_22K_PU
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#define PU_47K PAD_CTL_PUS_47K_PU
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#define PU_100K PAD_CTL_PUS_100K_PU
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#define PD_100K PAD_CTL_PUS_100K_PD
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#define HVE PAD_CTL_HVE /* Low output voltage */
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#define ALT0 IOMUX_CONFIG_ALT0
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#define ALT1 IOMUX_CONFIG_ALT1
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#define ALT2 IOMUX_CONFIG_ALT2
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#define ALT3 IOMUX_CONFIG_ALT3
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#define ALT4 IOMUX_CONFIG_ALT4
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#define ALT5 IOMUX_CONFIG_ALT5
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#define ALT6 IOMUX_CONFIG_ALT6
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#define ALT7 IOMUX_CONFIG_ALT7
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#define SION IOMUX_CONFIG_SION
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/* I2C1 */
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IOMUX_MP(I2C1_SCL, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH),
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IOMUX_MP(I2C1_SDA, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH),
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/* I2C2 */
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IOMUX_MP(I2C2_SCL, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH),
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IOMUX_MP(I2C2_SDA, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH),
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/* I2C3 */
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IOMUX_MP(I2C3_SCL, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH),
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IOMUX_MP(I2C3_SDA, ALT0 | SION, PULL | PU_100K | HYS | ODE | DSEHIGH),
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/* UART2 */
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IOMUX_MP(UART2_RXD, ALT0, HYS | PULL | DSEHIGH | SRE),
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IOMUX_MP(UART2_TXD, ALT0, HYS | PULL | DSEHIGH | SRE),
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/* SD1 */
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IOMUX_MP(SD1_CMD, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD1_CLK, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD1_D0, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD1_D1, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD1_D2, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD1_D3, ALT0, HVE | PU_22K | DSEMAX | SRE),
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// IOMUX_MP(SD1_CD, ALT0, HVE | PU_22K | DSEMAX | SRE),
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/* SD2 */
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IOMUX_MP(SD2_CMD, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD2_CLK, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD2_D0, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD2_D1, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD2_D2, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD2_D3, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD2_CD, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_DATA(IOMUXC_ESDHC2_IPP_CARD_DET_SELECT_INPUT, INPUT_DAISY_1),
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/* SD3 */
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IOMUX_MP(SD3_CMD, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD3_CLK, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD3_D0, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD3_D1, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD3_D2, ALT0, HVE | PU_22K | DSEMAX | SRE),
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IOMUX_MP(SD3_D3, ALT0, HVE | PU_22K | DSEMAX | SRE),
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// IOMUX_MP(SD3_CD, ALT0, HVE | PU_22K | DSEMAX | SRE),
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/* OTG */
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IOMUX_M(PWM2, ALT2),
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// IOMUX_MP(PWM1, ALT2, HYS | KEEPER | DSEHIGH),
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/* EPDC */
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IOMUX_M(EPDC_D0, ALT0),
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IOMUX_M(EPDC_D1, ALT0),
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IOMUX_M(EPDC_D2, ALT0),
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IOMUX_M(EPDC_D3, ALT0),
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IOMUX_M(EPDC_D4, ALT0),
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IOMUX_M(EPDC_D5, ALT0),
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IOMUX_M(EPDC_D6, ALT0),
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IOMUX_M(EPDC_D7, ALT0),
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IOMUX_M(EPDC_GDCLK, ALT0),
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IOMUX_M(EPDC_GDSP, ALT0),
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IOMUX_M(EPDC_GDOE, ALT0),
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IOMUX_M(EPDC_GDRL, ALT0),
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IOMUX_M(EPDC_SDCLK, ALT0),
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IOMUX_M(EPDC_SDOE, ALT0),
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IOMUX_M(EPDC_SDLE, ALT0),
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IOMUX_M(EPDC_BDR0, ALT0),
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IOMUX_M(EPDC_BDR1, ALT0),
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IOMUX_M(EPDC_SDCE0, ALT0),
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IOMUX_M(EPDC_PWRSTAT, ALT1), /* GPIO3[28] */
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IOMUX_M(EPDC_PWRCTRL0, ALT1), /* GPIO3[29] */
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IOMUX_M(EPDC_VCOM0, ALT1), /* GPIO4[21] */
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IOMUX_M(UART4_TXD, ALT1), /* GPIO6[16] */
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IOMUX_M(UART4_RXD, ALT1), /* GPIO6[17] */
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// IOMUX_M(PWM2, ALT1), /* GPIO6[25] */
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#undef ODE
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#undef HYS
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#undef SRE
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#undef PULL
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#undef KEEPER
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#undef PU_22K
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#undef PU_47K
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#undef PU_100K
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#undef PD_100K
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#undef HVE
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#undef DSEMAX
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#undef DSEHIGH
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#undef DSEMID
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#undef DSELOW
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#undef ALT0
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#undef ALT1
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#undef ALT2
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#undef ALT3
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#undef ALT4
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#undef ALT5
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#undef ALT6
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#undef ALT7
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#undef SION
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};
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static void
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setup_ioports(void)
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{
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int i;
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const struct iomux_setup *p;
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for (i=0; i < __arraycount(iomux_setup_data); ++i) {
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p = iomux_setup_data + i;
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ioreg_write(KOBO_IOMUXC_VBASE + p->reg,
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p->val);
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}
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}
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#ifdef CONSDEVNAME
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const char consdevname[] = CONSDEVNAME;
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#ifndef CONMODE
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#define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
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#endif
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#ifndef CONSPEED
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#define CONSPEED 115200
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#endif
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int consmode = CONMODE;
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int consrate = CONSPEED;
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#endif /* CONSDEVNAME */
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#ifndef IMXUART_FREQ
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#define IMXUART_FREQ 24000000
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#endif
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/*
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* u_int initarm(...)
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*
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* Initial entry point on startup. This gets called before main() is
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* entered.
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* It should be responsible for setting up everything that must be
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* in place when main is called.
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* This includes
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* Taking a copy of the boot configuration structure.
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* Initialising the physical console so characters can be printed.
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* Setting up page tables for the kernel
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*/
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u_int
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initarm(void *arg)
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{
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/*
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* Heads up ... Setup the CPU / MMU / TLB functions
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*/
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if (set_cpufuncs()) // starts PMC counter
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panic("cpu not recognized!");
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/* map some peripheral registers */
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pmap_devmap_bootstrap((vaddr_t)armreg_ttbr_read() & -L1_TABLE_SIZE,
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kobo_devmap);
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cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT);
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/* Register devmap for devices we mapped in start */
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pmap_devmap_register(kobo_devmap);
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setup_ioports();
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consinit();
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init_clocks();
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#ifdef KGDB
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kgdb_port_init();
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#endif
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/* Talk to the user */
|
|
printf("\nNetBSD/evbarm (" ___STRING(EVBARM_BOARDTYPE) ") booting ...\n");
|
|
|
|
#ifdef BOOT_ARGS
|
|
char mi_bootargs[] = BOOT_ARGS;
|
|
parse_mi_bootargs(mi_bootargs);
|
|
#endif
|
|
bootargs[0] = '\0';
|
|
|
|
#ifdef VERBOSE_INIT_ARM
|
|
printf("initarm: Configuring system");
|
|
printf(", CLIDR=%010o CTR=%#x",
|
|
armreg_clidr_read(), armreg_ctr_read());
|
|
printf("\n");
|
|
#endif
|
|
|
|
#ifdef VERBOSE_INIT_ARM
|
|
printf("initarm: Configuring system ...\n");
|
|
#endif
|
|
/*
|
|
* Set up the variables that define the availability of physical
|
|
* memory.
|
|
*/
|
|
|
|
/* Fake bootconfig structure for the benefit of pmap.c. */
|
|
bootconfig.dramblocks = 1;
|
|
bootconfig.dram[0].address = MEMSTART;
|
|
bootconfig.dram[0].pages = (MEMSIZE * 1024 * 1024) / PAGE_SIZE;
|
|
|
|
psize_t ram_size = bootconfig.dram[0].pages * PAGE_SIZE;
|
|
|
|
#ifdef __HAVE_MM_MD_DIRECT_MAPPED_PHYS
|
|
const bool mapallmem_p = true;
|
|
if (ram_size > (KERNEL_VM_BASE - KERNEL_BASE)) {
|
|
printf("%s: dropping RAM size from %luMB to %uMB\n",
|
|
__func__, (unsigned long) (ram_size >> 20),
|
|
(KERNEL_VM_BASE - KERNEL_BASE) >> 20);
|
|
ram_size = KERNEL_VM_BASE - KERNEL_BASE;
|
|
}
|
|
KASSERT(ram_size <= KERNEL_VM_BASE - KERNEL_BASE);
|
|
#else
|
|
const bool mapallmem_p = false;
|
|
#endif
|
|
|
|
arm32_bootmem_init(bootconfig.dram[0].address, ram_size,
|
|
KERNEL_BASE_PHYS);
|
|
arm32_kernel_vm_init(KERNEL_VM_BASE, ARM_VECTORS_HIGH, 0,
|
|
kobo_devmap, mapallmem_p);
|
|
|
|
#ifdef BOOTHOWTO
|
|
boothowto |= BOOTHOWTO;
|
|
#endif
|
|
|
|
return initarm_common(KERNEL_VM_BASE, KERNEL_VM_SIZE, NULL, 0);
|
|
}
|
|
|
|
void
|
|
consinit(void)
|
|
{
|
|
static int consinit_called = 0;
|
|
|
|
if (consinit_called)
|
|
return;
|
|
|
|
consinit_called = 1;
|
|
|
|
#ifdef CONSDEVNAME
|
|
|
|
#if NIMXUART > 0
|
|
imxuart_set_frequency(IMXUART_FREQ, 2);
|
|
#endif
|
|
|
|
#if (NIMXUART > 0) && defined(IMXUARTCONSOLE)
|
|
if (strcmp(consdevname, "imxuart") == 0) {
|
|
paddr_t consaddr;
|
|
#ifdef CONADDR
|
|
consaddr = CONADDR;
|
|
#else
|
|
consaddr = IMX51_UART2_BASE;
|
|
#endif
|
|
imxuart_cons_attach(&armv7_generic_bs_tag, consaddr, consrate, consmode);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
|
|
#if (NWSDISPLAY > 0) && defined(IMXEPDCCONSOLE)
|
|
#if NUKBD > 0
|
|
ukbd_cnattach();
|
|
#endif
|
|
{
|
|
extern void kobo_cnattach(void);
|
|
kobo_cnattach();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#ifdef KGDB
|
|
#ifndef KGDB_DEVNAME
|
|
#define KGDB_DEVNAME "imxuart"
|
|
#endif
|
|
#ifndef KGDB_DEVMODE
|
|
#define KGDB_DEVMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */
|
|
#endif
|
|
|
|
const char kgdb_devname[20] = KGDB_DEVNAME;
|
|
int kgdb_mode = KGDB_DEVMODE;
|
|
int kgdb_addr = KGDB_DEVADDR;
|
|
extern int kgdb_rate; /* defined in kgdb_stub.c */
|
|
|
|
void
|
|
kgdb_port_init(void)
|
|
{
|
|
#if (NIMXUART > 0)
|
|
if (strcmp(kgdb_devname, "imxuart") == 0) {
|
|
imxuart_kgdb_attach(&armv7_generic_bs_tag, kgdb_addr,
|
|
kgdb_rate, kgdb_mode);
|
|
return;
|
|
}
|
|
|
|
#endif
|
|
}
|
|
#endif
|