NetWalker kernels boot again.
* Enable __HAVE_MM_MD_DIRECT_MAPPED_PHYS * Change VM layout * Use common start-up routine
This commit is contained in:
hkenken
parent
a86b8eb298
commit
59f1bd2b6a
@ -1,4 +1,4 @@
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# $NetBSD: mk.netwalker,v 1.3 2014/03/07 12:35:14 hkenken Exp $
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# $NetBSD: mk.netwalker,v 1.4 2014/04/09 04:00:50 hkenken Exp $
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CPPFLAGS+= -mcpu=cortex-a8 -mfpu=neon
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@ -6,7 +6,7 @@ SYSTEM_FIRST_OBJ= netwalker_start.o
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SYSTEM_FIRST_SFILE= ${THISARM}/netwalker/netwalker_start.S
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KERNEL_BASE_PHYS=0x90100000
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KERNEL_BASE_VIRT=0xc0100000
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KERNEL_BASE_VIRT=0x80100000
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SYSTEM_LD_TAIL_EXTRA+=; \
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echo ${OBJCOPY} -S -O binary $@ $@.bin; \
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@ -1,4 +1,4 @@
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# $NetBSD: std.netwalker,v 1.8 2014/03/07 12:35:14 hkenken Exp $
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# $NetBSD: std.netwalker,v 1.9 2014/04/09 04:00:50 hkenken Exp $
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#
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# standard NetBSD/evbarm options for Sharp NetWalker
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@ -11,11 +11,12 @@ include "arch/evbarm/conf/files.netwalker"
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options MODULAR
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options __HAVE_FAST_SOFTINTS # should be in types.h
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options __HAVE_CPU_COUNTER
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options __HAVE_MM_MD_DIRECT_MAPPED_PHYS
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options ARM_HAS_VBAR
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options TPIDRPRW_IS_CURCPU
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options CORTEX_PMC
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options CORTEX_PMC_CCNT_HZ=800000000
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options KERNEL_BASE_EXT=0xc0000000
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options KERNEL_BASE_EXT=0x80000000
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options EVBARM_BOARDTYPE="netwalker"
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options FPU_VFP
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38
sys/arch/evbarm/netwalker/netwalker.h
Normal file
38
sys/arch/evbarm/netwalker/netwalker.h
Normal file
@ -0,0 +1,38 @@
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/* $NetBSD: netwalker.h,v 1.1 2014/04/09 04:00:50 hkenken Exp $ */
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/*
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* Copyright (c) 2014 Genetec Corporation. All rights reserved.
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* Written by Hashimoto Kenichi 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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#ifndef _EVBARM_NETWALKER_NETWALKER_H
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#define _EVBARM_NETWALKER_NETWALKER_H
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/*
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* Kernel VM space: 512MB at KERNEL_VM_BASE
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*/
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#define KERNEL_VM_BASE 0xc0000000
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#define KERNEL_VM_SIZE 0x20000000
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#endif /* _EVBARM_NETWALKER_NETWALKER_H */
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@ -1,4 +1,4 @@
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/* $NetBSD: netwalker_machdep.c,v 1.14 2014/03/29 12:00:27 hkenken Exp $ */
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/* $NetBSD: netwalker_machdep.c,v 1.15 2014/04/09 04:00:50 hkenken Exp $ */
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/*
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* Copyright (c) 2002, 2003, 2005, 2010 Genetec Corporation.
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@ -102,7 +102,7 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: netwalker_machdep.c,v 1.14 2014/03/29 12:00:27 hkenken Exp $");
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__KERNEL_RCSID(0, "$NetBSD: netwalker_machdep.c,v 1.15 2014/04/09 04:00:50 hkenken Exp $");
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#include "opt_evbarm_boardtype.h"
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#include "opt_cputypes.h"
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@ -137,7 +137,9 @@ __KERNEL_RCSID(0, "$NetBSD: netwalker_machdep.c,v 1.14 2014/03/29 12:00:27 hkenk
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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/imx51_iomuxreg.h>
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#include <evbarm/netwalker/netwalker_reg.h>
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#include <evbarm/netwalker/netwalker.h>
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#include "ukbd.h"
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#if (NUKBD > 0)
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@ -146,20 +148,12 @@ __KERNEL_RCSID(0, "$NetBSD: netwalker_machdep.c,v 1.14 2014/03/29 12:00:27 hkenk
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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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#define KERNEL_VM_BASE (KERNEL_BASE + 0x01000000)
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/*
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* The range 0xc1000000 - 0xccffffff is available for kernel VM space
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* Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff
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*/
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#define KERNEL_VM_SIZE 0x0C000000
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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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extern char KERNEL_BASE_virt[];
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extern int cpu_do_powersave;
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@ -167,12 +161,7 @@ extern int cpu_do_powersave;
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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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#define KERNEL_BASE_VIRT ((vaddr_t)&KERNEL_BASE_virt)
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#define KERN_VTOPHYS(va) \
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((paddr_t)((vaddr_t)va - KERNEL_BASE_VIRT + KERNEL_BASE_PHYS))
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#define KERN_PHYSTOV(pa) \
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((vaddr_t)((paddr_t)pa - KERNEL_BASE_PHYS + KERNEL_BASE_VIRT))
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#define KERNEL_BASE_PHYS ((paddr_t)KERNEL_BASE_phys)
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/* Prototypes */
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@ -212,14 +201,18 @@ int comcnmode = CONMODE;
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static const struct pmap_devmap netwalker_devmap[] = {
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{
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/* for UART1, IOMUXC */
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NETWALKER_IO_VBASE0,
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_A(NETWALKER_IO_PBASE0),
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L1_S_SIZE * 4,
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VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE
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.pd_va = _A(NETWALKER_IO_VBASE0),
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.pd_pa = _A(NETWALKER_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, 0, 0, 0, 0 }
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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 0x90000000
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#endif
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@ -274,6 +267,10 @@ initarm(void *arg)
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/* Talk to the user */
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printf("\nNetBSD/evbarm (" ___STRING(EVBARM_BOARDTYPE) ") booting ...\n");
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#ifdef BOOT_ARGS
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char mi_bootargs[] = BOOT_ARGS;
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parse_mi_bootargs(mi_bootargs);
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#endif
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bootargs[0] = '\0';
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#if defined(VERBOSE_INIT_ARM) || 1
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@ -288,7 +285,7 @@ initarm(void *arg)
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* Physical Address Range Description
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* ----------------------- ----------------------------------
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*
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* 0x90000000 - 0x97FFFFFF DDR SDRAM (128MByte)
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* 0x90000000 - 0xAFFFFFFF DDR SDRAM (512MByte)
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*
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* The initarm() has the responsibility for creating the kernel
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* page tables.
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@ -305,11 +302,29 @@ initarm(void *arg)
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bootconfig.dram[0].address = MEMSTART;
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bootconfig.dram[0].pages = (MEMSIZE * 1024 * 1024) / PAGE_SIZE;
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arm32_bootmem_init(bootconfig.dram[0].address,
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bootconfig.dram[0].pages * PAGE_SIZE, (uintptr_t)KERNEL_BASE_PHYS);
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psize_t ram_size = bootconfig.dram[0].pages * PAGE_SIZE;
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#ifdef __HAVE_MM_MD_DIRECT_MAPPED_PHYS
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if (ram_size > KERNEL_VM_BASE - KERNEL_BASE) {
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printf("%s: dropping RAM size from %luMB to %uMB\n",
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__func__, (unsigned long) (ram_size >> 20),
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(KERNEL_VM_BASE - KERNEL_BASE) >> 20);
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ram_size = KERNEL_VM_BASE - KERNEL_BASE;
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}
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#endif
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arm32_bootmem_init(bootconfig.dram[0].address, ram_size,
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KERNEL_BASE_PHYS);
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#ifdef __HAVE_MM_MD_DIRECT_MAPPED_PHYS
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const bool mapallmem_p = true;
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KASSERT(ram_size <= KERNEL_VM_BASE - KERNEL_BASE);
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#else
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const bool mapallmem_p = false;
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#endif
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arm32_kernel_vm_init(KERNEL_VM_BASE, ARM_VECTORS_HIGH, 0,
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netwalker_devmap, false);
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netwalker_devmap, mapallmem_p);
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/* disable power down counter in watch dog,
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This must be done within 16 seconds of start-up. */
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@ -609,22 +624,6 @@ setup_ioports(void)
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ioreg_write(NETWALKER_IOMUXC_VBASE + p->reg,
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p->val);
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}
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#if 0 /* already done by bootloader */
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/* GPIO2[22,23]: input (left/right button)
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GPIO2[21]: input (power button) */
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ioreg_write(NETWALKER_GPIO_VBASE(2) + GPIO_DIR,
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~__BITS(21,23) &
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ioreg_read(NETWALKER_GPIO_VBASE(2) + GPIO_DIR));
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#endif
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#if 0 /* already done by bootloader */
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/* GPIO4[12]: input (cover switch) */
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ioreg_write(NETWALKER_GPIO_VBASE(4) + GPIO_DIR,
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~__BIT(12) &
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ioreg_read(NETWALKER_GPIO_VBASE(4) + GPIO_DIR));
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#endif
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}
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@ -1,4 +1,4 @@
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/* $NetBSD: netwalker_start.S,v 1.2 2011/01/31 06:28:05 matt Exp $ */
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/* $NetBSD: netwalker_start.S,v 1.3 2014/04/09 04:00:50 hkenken Exp $ */
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/*-
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* Copyright (c) 2009 SHIMIZU Ryo <ryo@nerv.org>
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@ -54,8 +54,11 @@
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#include "opt_imx.h"
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#include "opt_com.h"
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#include "opt_cpuoptions.h"
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#include "opt_cputypes.h"
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#include "opt_arm_debug.h"
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#include <machine/asm.h>
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#include <arm/asm.h>
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#include <arm/armreg.h>
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#include "assym.h"
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@ -63,19 +66,13 @@
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#include <arm/imx/imxuartreg.h>
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#include <evbarm/netwalker/netwalker_reg.h>
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RCSID("$NetBSD: netwalker_start.S,v 1.2 2011/01/31 06:28:05 matt Exp $")
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RCSID("$NetBSD: netwalker_start.S,v 1.3 2014/04/09 04:00:50 hkenken Exp $")
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#if 0
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#define CPWAIT_BRANCH \
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sub pc, pc, #4
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#define CPWAIT(tmp) \
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mrc p15, 0, tmp, c2, c0, 0 /* arbitrary read of CP15 */ ;\
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mov tmp, tmp /* wait for it to complete */ ;\
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CPWAIT_BRANCH /* branch to next insn */
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#if defined(VERBOSE_INIT_ARM)
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#define DEBUG_STARTUP
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#define XPUTC(n) mov r0, n; bl _C_LABEL(debugputc)
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#else
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#define CPWAIT_BRANCH /* nothing to do */
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#define CPWAIT(tmp) /* nothing to do */
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#define XPUTC(n)
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#endif
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#ifndef SDRAM_START
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@ -83,6 +80,9 @@ RCSID("$NetBSD: netwalker_start.S,v 1.2 2011/01/31 06:28:05 matt Exp $")
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#endif
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#define KERNEL_TEXT_ADDR (SDRAM_START+0x00100000)
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#define INIT_MEMSIZE 128
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#define TEMP_L1_TABLE (SDRAM_START + INIT_MEMSIZE * 0x100000 - L1_TABLE_SIZE)
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#ifdef DEBUG_STARTUP
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#define CHECKPOINT(n) CHECKPOINT2(n,r0,r1)
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#define CHECKPOINT2(n,ra,rb) \
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@ -101,7 +101,6 @@ RCSID("$NetBSD: netwalker_start.S,v 1.2 2011/01/31 06:28:05 matt Exp $")
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.global _C_LABEL(netwalker_start)
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_C_LABEL(netwalker_start):
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CHECKPOINT(0)
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CHECKPOINT(0)
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#ifdef DEBUG_STARTUP
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ldr sp,=SDRAM_START+0x4000
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@ -157,7 +156,7 @@ _C_LABEL(netwalker_start):
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/*
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* move me to RAM
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*/
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ldr r1, Lcopy_size
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ldr r1, .Lcopy_size
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add r1, r1, #3
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mov r1, r1, LSR #2
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mov r4, r2
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@ -187,121 +186,75 @@ _C_LABEL(netwalker_start):
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* Okay, we are finished relocating the text segment. Now
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* we need to leap to the next instruction.
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*/
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ldr r0, Lrelocate_address
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ldr r1, Lrelocate_offset
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ldr r0, .Lrelocate_address
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ldr r1, .Lrelocate_offset
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add pc, r0, r1
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Lrelocate_offset: .word relocated-_C_LABEL(netwalker_start)
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.Lrelocate_offset: .word relocated-_C_LABEL(netwalker_start)
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relocated:
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CHECKPOINT(5)
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CHECKPOINT(1)
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/* Move into supervisor mode and disable IRQs/FIQs. */
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mrs r0, cpsr
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bic r0, r0, #PSR_MODE
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orr r0, r0, #(I32_bit | F32_bit | PSR_SVC32_MODE)
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msr cpsr, r0
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cpsid if, #PSR_SVC32_MODE
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mrc p15, 0, r0, c2, c0, 0 /* get ttb prepared by bootloader */
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adr r4, mmu_init_table
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b 3f
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movw r0, #:lower16:TEMP_L1_TABLE
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movt r0, #:upper16:TEMP_L1_TABLE
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adr r1, .Lmmu_init_table
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bl arm_boot_l1pt_init
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2:
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str r3, [r0, r2]
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add r2, r2, #4
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add r3, r3, #(L1_S_SIZE)
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adds r1, r1, #-1
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bhi 2b
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3:
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ldmia r4!, {r1,r2,r3} /* # of sections, PA|attr, VA */
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cmp r1, #0
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bne 2b
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CHECKPOINT(2)
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/*
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* Turn on the MMU, Caches, etc.
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*/
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movw r0, #:lower16:TEMP_L1_TABLE
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movt r0, #:upper16:TEMP_L1_TABLE
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bl arm_cpuinit
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CHECKPOINT(3)
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CHECKPOINT2(6,r3,r4)
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#if 0
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/* XXX: clean and invalidate Dcache. */
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#endif
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mcr p15, 0, r0, c7, c10, 5 /* DMB */
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CPWAIT(r0)
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movw ip, #:lower16:start
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movt ip, #:upper16:start
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bx ip /* Jump to start (flushes pipeline). */
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mcr p15, 0, r0, c7, c5, 0 /* invalied Icache */
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mcr p15, 0, r0, c2, c0, 0 /* Set TTB */
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mcr p15, 0, r0, c8, c7, 0 /* Flush TLB */
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CHECKPOINT(7)
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/* Set the Domain Access register. Very important! */
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mov r0, #((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT)
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mcr p15, 0, r0, c3, c0, 0
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CHECKPOINT(8)
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/* Enable MMU */
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mrc p15, 0, r0, c1, c0, 0
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orr r0, r0, #CPU_CONTROL_MMU_ENABLE|CPU_CONTROL_AFLT_ENABLE|CPU_CONTROL_DC_ENABLE
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orr r0, r0, #CPU_CONTROL_IC_ENABLE|CPU_CONTROL_BPRD_ENABLE
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mcr p15, 0, r0, c1, c0, 0
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CPWAIT(r0)
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nop
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nop
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nop
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nop
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#ifdef DEBUG_STARTUP
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CHECKPOINT(9)
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bl newline
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#endif
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ldr pc, =start
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nop
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nop
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nop
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nop
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/* NOTREACHED */
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/*
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* Calculate size of kernel to copy. Don't bother to copy bss,
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* although I guess the CPU could use the warmup exercise ...
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*/
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Lcopy_size:
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.Lcopy_size:
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.word _edata - _C_LABEL(netwalker_start)
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Lrelocate_address:
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.Lrelocate_address:
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.word KERNEL_BASE_phys
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#define MMU_INIT(va,pa,n_sec,attr) \
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.word n_sec ; \
|
||||
.word 4*((va)>>L1_S_SHIFT) ; \
|
||||
.word (pa)|(attr) ;
|
||||
#include <arm/cortex/a9_mpsubr.S>
|
||||
|
||||
mmu_init_table:
|
||||
.Lmmu_init_table:
|
||||
/* fill all table VA==PA */
|
||||
MMU_INIT(0x00000000, 0x00000000,
|
||||
1 << (32 - L1_S_SHIFT),
|
||||
L1_S_PROTO | L1_S_APv7_KRW)
|
||||
MMU_INIT(0x00000000, 0x00000000, 1 << (32 - L1_S_SHIFT),
|
||||
L1_S_PROTO_armv7 | L1_S_APv7_KRW)
|
||||
|
||||
/* Map KERNEL_BASE VA to SDRAM PA, write-back cacheable */
|
||||
MMU_INIT(SDRAM_START, SDRAM_START,
|
||||
512,
|
||||
L1_S_PROTO | L1_S_APv7_KRW | L1_S_B | L1_S_C)
|
||||
/* Map memory 1:1 VA to PA, write-back cacheable, shareable */
|
||||
MMU_INIT(SDRAM_START, SDRAM_START, 512,
|
||||
L1_S_PROTO_armv7 | L1_S_APv7_KRW | L1_S_CACHEABLE)
|
||||
|
||||
/* map VA 0xc0000000..0xdfffffff to PA 0x90000000..0xafffffff */
|
||||
MMU_INIT(0xc0000000, SDRAM_START,
|
||||
512, L1_S_PROTO | L1_S_APv7_KRW | L1_S_B | L1_S_C)
|
||||
|
||||
/* Map all 256KB of L4 WAKEUP (so console will work) */
|
||||
MMU_INIT(NETWALKER_IO_VBASE0, NETWALKER_IO_PBASE0,
|
||||
4,
|
||||
L1_S_PROTO | L1_S_APv7_KRW)
|
||||
/* Map KERNEL_BASE VA to SDRAM PA, write-back cacheable, shareable */
|
||||
MMU_INIT(KERNEL_BASE, SDRAM_START, INIT_MEMSIZE,
|
||||
L1_S_PROTO_armv7 | L1_S_APv7_KRW | L1_S_CACHEABLE)
|
||||
|
||||
/*
|
||||
* In case of early start debugging it might be useful to map
|
||||
* SoC registers (for UART access).
|
||||
*/
|
||||
MMU_INIT(NETWALKER_IO_VBASE0, NETWALKER_IO_PBASE0, 4,
|
||||
L1_S_PROTO | L1_S_APv7_KRW | L1_S_V6_XN)
|
||||
|
||||
/* end of table */
|
||||
MMU_INIT(0, 0, 0, 0)
|
||||
|
||||
#ifdef DEBUG_STARTUP
|
||||
Luart0adr:
|
||||
.Luart0adr:
|
||||
.word UART1_BASE
|
||||
|
||||
.global _C_LABEL(debugprintx)
|
||||
@ -350,7 +303,7 @@ print_r3:
|
||||
_C_LABEL(debugputc):
|
||||
stmfd sp!, {r0, r1, r2, lr}
|
||||
|
||||
ldr r1, Luart0adr
|
||||
ldr r1, .Luart0adr
|
||||
|
||||
1: /* wait */
|
||||
ldr r2, [r1, #0x98]
|
||||
@ -371,3 +324,5 @@ newline:
|
||||
b _C_LABEL(debugputc)
|
||||
|
||||
#endif /* DEBUG_STARTUP */
|
||||
|
||||
END(_C_LABEL(netwalker_start))
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user