Call arm32_*_init() and initarm_common().
OVERO work fine. GUMSTIX build only now.
This commit is contained in:
kiyohara
parent
bc43ee9904
commit
b2818818a0
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@ -1,5 +1,5 @@
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#
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# $NetBSD: OVERO,v 1.34 2014/04/05 23:45:11 khorben Exp $
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# $NetBSD: OVERO,v 1.35 2014/05/23 13:56:18 kiyohara Exp $
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#
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# OVERO -- Gumstix. Inc. Overo COMS platforms kernel
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#
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@ -16,7 +16,10 @@ maxusers 32
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options CPU_CORTEXA8
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options OMAP_3530
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options FPU_VFP
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options PMAPCOUNTERS
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options ARM_HAS_VBAR
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options __HAVE_MM_MD_DIRECT_MAPPED_PHYS
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makeoptions CPUFLAGS="-mcpu=cortex-a8 -mfpu=neon"
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# Architecture options
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@ -1,8 +1,12 @@
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# $NetBSD: files.gumstix,v 1.17 2010/09/23 07:08:57 kiyohara Exp $
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# $NetBSD: files.gumstix,v 1.18 2014/05/23 13:56:18 kiyohara Exp $
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#
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# Gumstix. Inc. Gumstix boards configuration info
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#
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file arch/arm/arm32/arm32_boot.c
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file arch/arm/arm32/arm32_kvminit.c
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file arch/arm/arm32/arm32_reboot.c
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file arch/evbarm/gumstix/gumstix_machdep.c
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defflag opt_gumstix.h GUMSTIX
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GUMSTIX_NETBSD_ARGS_BUSHEADER
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@ -1,8 +1,12 @@
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# $NetBSD: files.overo,v 1.4 2011/03/06 02:22:27 jakllsch Exp $
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# $NetBSD: files.overo,v 1.5 2014/05/23 13:56:18 kiyohara Exp $
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#
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# Gumstix. Inc. Overo boards configuration info
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#
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file arch/arm/arm32/arm32_boot.c
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file arch/arm/arm32/arm32_kvminit.c
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file arch/arm/arm32/arm32_reboot.c
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file arch/evbarm/gumstix/gumstix_machdep.c
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defflag opt_gumstix.h OVERO
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GUMSTIX_NETBSD_ARGS_EXPANSION
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@ -1,4 +1,4 @@
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/* $NetBSD: gumstix_machdep.c,v 1.48 2013/09/26 16:14:34 kiyohara Exp $ */
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/* $NetBSD: gumstix_machdep.c,v 1.49 2014/05/23 13:56:18 kiyohara Exp $ */
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/*
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* Copyright (C) 2005, 2006, 2007 WIDE Project and SOUM Corporation.
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* All rights reserved.
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@ -144,11 +144,8 @@
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#include "opt_omap.h"
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#include "prcm.h"
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#endif
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#include "opt_ddb.h"
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#include "opt_kgdb.h"
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#include "opt_pmap_debug.h"
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#include "opt_md.h"
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#include "opt_modular.h"
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#include "opt_com.h"
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#include <sys/param.h>
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@ -156,8 +153,6 @@
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#include <sys/device.h>
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#include <sys/exec.h>
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#include <sys/kernel.h>
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#include <sys/ksyms.h>
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#include <sys/msgbuf.h>
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#include <sys/proc.h>
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#include <sys/reboot.h>
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#include <sys/systm.h>
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@ -165,11 +160,11 @@
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#include <sys/bus.h>
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#include <sys/cpu.h>
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#include <uvm/uvm_extern.h>
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#include <machine/autoconf.h>
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#include <machine/bootconfig.h>
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#include <machine/db_machdep.h>
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#include <arm/locore.h>
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#include <arm/undefined.h>
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#include <arm/arm32/machdep.h>
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#ifdef OVERO
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@ -185,28 +180,20 @@
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#include <evbarm/gumstix/gumstixreg.h>
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#include <evbarm/gumstix/gumstixvar.h>
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#include <uvm/uvm_extern.h>
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#include <dev/cons.h>
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#include <dev/md.h>
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#include <ddb/db_sym.h>
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#include <ddb/db_extern.h>
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#ifdef KGDB
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#include <sys/kgdb.h>
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#endif
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/* Kernel text starts 2MB in from the bottom of the kernel address space. */
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#define KERNEL_TEXT_BASE (KERNEL_BASE + 0x00200000)
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#ifndef KERNEL_VM_BASE
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#define KERNEL_VM_BASE (KERNEL_BASE + 0x01000000)
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#endif
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/*
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* The range 0xc1000000 - 0xccffffff is available for kernel VM space
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* The range 0xc1000000 - 0xcfffffff 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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#ifndef KERNEL_VM_BASE
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#define KERNEL_VM_BASE 0xc1000000
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#endif
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#define KERNEL_VM_SIZE 0x0f000000
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BootConfig bootconfig; /* Boot config storage */
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static char bootargs[MAX_BOOT_STRING];
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@ -216,39 +203,11 @@ char *boot_args = NULL;
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uint32_t system_serial_high;
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uint32_t system_serial_low;
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vm_offset_t physical_start;
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vm_offset_t physical_freestart;
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vm_offset_t physical_freeend;
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vm_offset_t physical_end;
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u_int free_pages;
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/*int debug_flags;*/
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#ifndef PMAP_STATIC_L1S
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int max_processes = 64; /* Default number */
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#endif /* !PMAP_STATIC_L1S */
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pv_addr_t minidataclean;
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vm_offset_t msgbufphys;
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#ifdef PMAP_DEBUG
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extern int pmap_debug_level;
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#endif
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#define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */
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#define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */
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#define KERNEL_PT_KERNEL_NUM ((KERNEL_VM_BASE - KERNEL_BASE) >> 22)
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#define KERNEL_PT_VMDATA (KERNEL_PT_KERNEL+KERNEL_PT_KERNEL_NUM)
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/* Page tables for mapping kernel VM */
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#define KERNEL_PT_VMDATA_NUM 4 /* start with 16MB of KVM */
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#define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM)
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pv_addr_t kernel_pt_table[NUM_KERNEL_PTS];
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/* Prototypes */
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#if defined(GUMSTIX)
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static void read_system_serial(void);
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#elif defined(OVERO)
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static void overo_reset(void);
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static void find_cpu_clock(void);
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#endif
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static void process_kernel_args(int, char *[]);
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@ -287,77 +246,6 @@ static char console[16];
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extern void gxio_config_pin(void);
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extern void gxio_config_expansion(char *);
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/*
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* void cpu_reboot(int howto, char *bootstr)
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*
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* Deal with any syncing, unmounting, dumping and shutdown hooks,
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* then reset the CPU.
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*/
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void
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cpu_reboot(int howto, char *bootstr)
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{
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#ifdef DIAGNOSTIC
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/* info */
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printf("boot: howto=%08x curproc=%p\n", howto, curproc);
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#endif
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/*
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* If we are still cold then hit the air brakes
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* and crash to earth fast
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*/
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if (cold) {
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doshutdownhooks();
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pmf_system_shutdown(boothowto);
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printf("The operating system has halted.\n");
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printf("Please press any key to reboot.\n\n");
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cngetc();
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printf("rebooting...\n");
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#if defined(OMAP_3530) && NPRCM > 0
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prcm_cold_reset();
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#endif
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cpu_reset();
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/*NOTREACHED*/
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}
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/*
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* If RB_NOSYNC was not specified sync the discs.
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* Note: Unless cold is set to 1 here, syslogd will die during the
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* unmount. It looks like syslogd is getting woken up only to find
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* that it cannot page part of the binary in as the filesystem has
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* been unmounted.
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*/
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if (!(howto & RB_NOSYNC))
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bootsync();
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/* Say NO to interrupts */
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splhigh();
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/* Do a dump if requested. */
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if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP)
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dumpsys();
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/* Run any shutdown hooks */
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doshutdownhooks();
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pmf_system_shutdown(boothowto);
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/* Make sure IRQ's are disabled */
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IRQdisable;
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if (howto & RB_HALT) {
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printf("The operating system has halted.\n");
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printf("Please press any key to reboot.\n\n");
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cngetc();
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}
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printf("rebooting...\n");
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#if defined(OMAP_3530) && NPRCM > 0
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prcm_cold_reset();
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#endif
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cpu_reset();
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/*NOTREACHED*/
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}
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static inline pd_entry_t *
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read_ttb(void)
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@ -484,20 +372,10 @@ static const struct pmap_devmap gumstix_devmap[] = {
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u_int
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initarm(void *arg)
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{
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#if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270)
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#ifdef DIAGNOSTIC
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extern vsize_t xscale_minidata_clean_size; /* used in KASSERT */
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#endif
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extern vaddr_t xscale_cache_clean_addr;
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#endif
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extern char KERNEL_BASE_phys[];
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extern uint32_t *u_boot_args[];
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extern uint32_t ram_size;
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enum { r0 = 0, r1 = 1, r2 = 2, r3 = 3 }; /* args from u-boot */
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int loop;
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int loop1;
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u_int l1pagetable;
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paddr_t memstart;
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psize_t memsize;
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/*
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* We mapped PA == VA in gumstix_start.S.
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@ -514,11 +392,15 @@ initarm(void *arg)
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* Overo:
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* Physical Address Range Description
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* ----------------------- ----------------------------------
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* 0x80000000 - 0x8fffffff SDRAM Bank 0 (256MB, 512MB or 1024MB)
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* 0x80000000 - 0x8fffffff SDRAM Bank 0 (256MB or 512MB)
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* 0x80000000 - 0x83ffffff KERNEL_BASE
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*/
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#if defined(OVERO)
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#if defined(GUMSTIX)
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cpu_reset_address = NULL;
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#elif defined(OVERO)
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cpu_reset_address = overo_reset;
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find_cpu_clock(); // find our CPU speed.
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#endif
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@ -592,9 +474,6 @@ initarm(void *arg)
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read_system_serial();
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#endif
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memstart = SDRAM_START;
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memsize = ram_size;
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#ifdef VERBOSE_INIT_ARM
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printf("initarm: Configuring system ...\n");
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#endif
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@ -602,392 +481,24 @@ initarm(void *arg)
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/* Fake bootconfig structure for the benefit of pmap.c */
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/* XXX must make the memory description h/w independent */
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bootconfig.dramblocks = 1;
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bootconfig.dram[0].address = memstart;
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bootconfig.dram[0].pages = memsize / PAGE_SIZE;
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bootconfig.dram[0].address = SDRAM_START;
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bootconfig.dram[0].pages = ram_size / PAGE_SIZE;
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/*
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* Set up the variables that define the availablilty of
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* physical memory. For now, we're going to set
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* physical_freestart to 0xa0200000 (where the kernel
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* was loaded), and allocate the memory we need downwards.
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* If we get too close to the L1 table that we set up, we
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* will panic. We will update physical_freestart and
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* physical_freeend later to reflect what pmap_bootstrap()
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* wants to see.
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*
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* XXX pmap_bootstrap() needs an enema.
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*/
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physical_start = bootconfig.dram[0].address;
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physical_end = physical_start + memsize;
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KASSERT(ram_size <= KERNEL_VM_BASE - KERNEL_BASE);
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#if defined(GUMSTIX)
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physical_freestart = 0xa0009000UL;
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physical_freeend = 0xa0200000UL;
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#elif defined(OVERO)
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physical_freestart = 0x80009000UL;
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physical_freeend = 0x80200000UL;
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#endif
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physmem = (physical_end - physical_start) / PAGE_SIZE;
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#ifdef VERBOSE_INIT_ARM
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/* Tell the user about the memory */
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printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem,
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physical_start, physical_end - 1);
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#endif
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/*
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* Okay, the kernel starts 2MB in from the bottom of physical
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* memory. We are going to allocate our bootstrap pages downwards
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* from there.
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*
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* We need to allocate some fixed page tables to get the kernel
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* going. We allocate one page directory and a number of page
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* tables and store the physical addresses in the kernel_pt_table
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* array.
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*
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* The kernel page directory must be on a 16K boundary. The page
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* tables must be on 4K bounaries. What we do is allocate the
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* page directory on the first 16K boundary that we encounter, and
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* the page tables on 4K boundaries otherwise. Since we allocate
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* at least 3 L2 page tables, we are guaranteed to encounter at
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* least one 16K aligned region.
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*/
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#ifdef VERBOSE_INIT_ARM
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printf("Allocating page tables\n");
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#endif
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free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE;
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#ifdef VERBOSE_INIT_ARM
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printf("freestart = 0x%08lx, free_pages = %d (0x%08x)\n",
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physical_freestart, free_pages, free_pages);
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#endif
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/* Define a macro to simplify memory allocation */
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#define valloc_pages(var, np) \
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alloc_pages((var).pv_pa, (np)); \
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(var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start;
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#define alloc_pages(var, np) \
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physical_freeend -= ((np) * PAGE_SIZE); \
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if (physical_freeend < physical_freestart) \
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panic("initarm: out of memory"); \
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(var) = physical_freeend; \
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free_pages -= (np); \
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memset((char *)(var), 0, ((np) * PAGE_SIZE));
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loop1 = 0;
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for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) {
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/* Are we 16KB aligned for an L1 ? */
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if ((physical_freeend & (L1_TABLE_SIZE - 1)) == 0 &&
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kernel_l1pt.pv_pa == 0) {
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valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE);
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} else {
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valloc_pages(kernel_pt_table[loop1],
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L2_TABLE_SIZE / PAGE_SIZE);
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++loop1;
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}
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}
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/* This should never be able to happen but better confirm that. */
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if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0)
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panic("initarm: Failed to align the kernel page directory");
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/*
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* Allocate a page for the system page mapped to V0x00000000
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* This page will just contain the system vectors and can be
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* shared by all processes.
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*/
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alloc_pages(systempage.pv_pa, 1);
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#if defined(CPU_CORTEXA8)
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systempage.pv_va = ARM_VECTORS_HIGH;
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#endif
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/* Allocate stacks for all modes */
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valloc_pages(irqstack, IRQ_STACK_SIZE);
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valloc_pages(abtstack, ABT_STACK_SIZE);
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valloc_pages(undstack, UND_STACK_SIZE);
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valloc_pages(kernelstack, UPAGES);
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/* Allocate enough pages for cleaning the Mini-Data cache. */
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arm32_bootmem_init(bootconfig.dram[0].address, ram_size,
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(uintptr_t) KERNEL_BASE_phys);
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arm32_kernel_vm_init(KERNEL_VM_BASE,
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#if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270)
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KASSERT(xscale_minidata_clean_size <= PAGE_SIZE);
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#endif
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valloc_pages(minidataclean, 1);
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#ifdef VERBOSE_INIT_ARM
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printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa,
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irqstack.pv_va);
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printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa,
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abtstack.pv_va);
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printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa,
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undstack.pv_va);
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printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa,
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kernelstack.pv_va);
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#endif
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/*
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* XXX Defer this to later so that we can reclaim the memory
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* XXX used by the RedBoot page tables.
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*/
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alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / PAGE_SIZE);
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/*
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* Ok we have allocated physical pages for the primary kernel
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* page tables
|
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*/
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#ifdef VERBOSE_INIT_ARM
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printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa);
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#endif
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/*
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||||
* Now we start construction of the L1 page table
|
||||
* We start by mapping the L2 page tables into the L1.
|
||||
* This means that we can replace L1 mappings later on if necessary
|
||||
*/
|
||||
l1pagetable = kernel_l1pt.pv_va;
|
||||
|
||||
/* Map the L2 pages tables in the L1 page table */
|
||||
#if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270)
|
||||
pmap_link_l2pt(l1pagetable, 0x00000000,
|
||||
&kernel_pt_table[KERNEL_PT_SYS]);
|
||||
ARM_VECTORS_LOW,
|
||||
#elif defined(CPU_CORTEXA8)
|
||||
pmap_link_l2pt(l1pagetable, ARM_VECTORS_HIGH & ~(0x00400000 - 1),
|
||||
&kernel_pt_table[KERNEL_PT_SYS]);
|
||||
ARM_VECTORS_HIGH,
|
||||
#endif
|
||||
for (loop = 0; loop < KERNEL_PT_KERNEL_NUM; loop++)
|
||||
pmap_link_l2pt(l1pagetable, KERNEL_BASE + loop * 0x00400000,
|
||||
&kernel_pt_table[KERNEL_PT_KERNEL + loop]);
|
||||
for (loop = 0; loop < KERNEL_PT_VMDATA_NUM; loop++)
|
||||
pmap_link_l2pt(l1pagetable, KERNEL_VM_BASE + loop * 0x00400000,
|
||||
&kernel_pt_table[KERNEL_PT_VMDATA + loop]);
|
||||
0, gumstix_devmap, true);
|
||||
|
||||
/* update the top of the kernel VM */
|
||||
pmap_curmaxkvaddr =
|
||||
KERNEL_VM_BASE + (KERNEL_PT_VMDATA_NUM * 0x00400000);
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("Mapping kernel\n");
|
||||
#endif
|
||||
|
||||
/* Now we fill in the L2 pagetable for the kernel static code/data */
|
||||
{
|
||||
extern char etext[], _end[];
|
||||
size_t textsize = (uintptr_t) etext - KERNEL_TEXT_BASE;
|
||||
size_t totalsize = (uintptr_t) _end - KERNEL_TEXT_BASE;
|
||||
u_int logical;
|
||||
|
||||
textsize = (textsize + PGOFSET) & ~PGOFSET;
|
||||
totalsize = (totalsize + PGOFSET) & ~PGOFSET;
|
||||
|
||||
logical = 0x00200000; /* offset of kernel in RAM */
|
||||
|
||||
logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical,
|
||||
physical_start + logical, textsize,
|
||||
VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical,
|
||||
physical_start + logical, totalsize - textsize,
|
||||
VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
}
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("Constructing L2 page tables\n");
|
||||
#endif
|
||||
|
||||
/* Map the stack pages */
|
||||
pmap_map_chunk(l1pagetable, irqstack.pv_va, irqstack.pv_pa,
|
||||
IRQ_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
pmap_map_chunk(l1pagetable, abtstack.pv_va, abtstack.pv_pa,
|
||||
ABT_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
pmap_map_chunk(l1pagetable, undstack.pv_va, undstack.pv_pa,
|
||||
UND_STACK_SIZE * PAGE_SIZE, VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
pmap_map_chunk(l1pagetable, kernelstack.pv_va, kernelstack.pv_pa,
|
||||
UPAGES * PAGE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_CACHE);
|
||||
|
||||
pmap_map_chunk(l1pagetable, kernel_l1pt.pv_va, kernel_l1pt.pv_pa,
|
||||
L1_TABLE_SIZE, VM_PROT_READ | VM_PROT_WRITE, PTE_PAGETABLE);
|
||||
|
||||
for (loop = 0; loop < NUM_KERNEL_PTS; ++loop) {
|
||||
pmap_map_chunk(l1pagetable, kernel_pt_table[loop].pv_va,
|
||||
kernel_pt_table[loop].pv_pa, L2_TABLE_SIZE,
|
||||
VM_PROT_READ|VM_PROT_WRITE, PTE_PAGETABLE);
|
||||
}
|
||||
|
||||
/* Map the Mini-Data cache clean area. */
|
||||
#if defined(GUMSTIX)
|
||||
xscale_setup_minidata(l1pagetable, minidataclean.pv_va,
|
||||
minidataclean.pv_pa);
|
||||
#endif
|
||||
|
||||
/* Map the vector page. */
|
||||
#if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270)
|
||||
#if 1
|
||||
/* MULTI-ICE requires that page 0 is NC/NB so that it can download the
|
||||
* cache-clean code there. */
|
||||
pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa,
|
||||
VM_PROT_READ|VM_PROT_WRITE, PTE_NOCACHE);
|
||||
#else
|
||||
pmap_map_entry(l1pagetable, vector_page, systempage.pv_pa,
|
||||
VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
#endif
|
||||
#elif defined(CPU_CORTEXA8)
|
||||
pmap_map_entry(l1pagetable, ARM_VECTORS_HIGH, systempage.pv_pa,
|
||||
VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* map integrated peripherals at same address in l1pagetable
|
||||
* so that we can continue to use console.
|
||||
*/
|
||||
pmap_devmap_bootstrap(l1pagetable, gumstix_devmap);
|
||||
|
||||
#if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270)
|
||||
/*
|
||||
* Give the XScale global cache clean code an appropriately
|
||||
* sized chunk of unmapped VA space starting at 0xff000000
|
||||
* (our device mappings end before this address).
|
||||
*/
|
||||
xscale_cache_clean_addr = 0xff000000U;
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Now we have the real page tables in place so we can switch to them.
|
||||
* Once this is done we will be running with the REAL kernel page
|
||||
* tables.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Update the physical_freestart/physical_freeend/free_pages
|
||||
* variables.
|
||||
*/
|
||||
{
|
||||
extern char _end[];
|
||||
|
||||
physical_freestart = physical_start +
|
||||
(((((uintptr_t) _end) + PGOFSET) & ~PGOFSET) -
|
||||
KERNEL_BASE);
|
||||
physical_freeend = physical_end;
|
||||
free_pages =
|
||||
(physical_freeend - physical_freestart) / PAGE_SIZE;
|
||||
}
|
||||
|
||||
/* Switch tables */
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("freestart = 0x%08lx, free_pages = %d (0x%x)\n",
|
||||
physical_freestart, free_pages, free_pages);
|
||||
printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa);
|
||||
#endif
|
||||
|
||||
cpu_setttb(kernel_l1pt.pv_pa, true);
|
||||
cpu_tlb_flushID();
|
||||
cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2));
|
||||
|
||||
/*
|
||||
* Moved from cpu_startup() as data_abort_handler() references
|
||||
* this during uvm init
|
||||
*/
|
||||
uvm_lwp_setuarea(&lwp0, kernelstack.pv_va);
|
||||
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("bootstrap done.\n");
|
||||
#endif
|
||||
|
||||
#if defined(CPU_XSCALE_PXA250) || defined(CPU_XSCALE_PXA270)
|
||||
arm32_vector_init(ARM_VECTORS_LOW, ARM_VEC_ALL);
|
||||
#elif defined(CPU_CORTEXA8)
|
||||
arm32_vector_init(ARM_VECTORS_HIGH, ARM_VEC_ALL);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Pages were allocated during the secondary bootstrap for the
|
||||
* stacks for different CPU modes.
|
||||
* We must now set the r13 registers in the different CPU modes to
|
||||
* point to these stacks.
|
||||
* Since the ARM stacks use STMFD etc. we must set r13 to the top end
|
||||
* of the stack memory.
|
||||
*/
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("init subsystems: stacks ");
|
||||
#endif
|
||||
|
||||
set_stackptr(PSR_IRQ32_MODE,
|
||||
irqstack.pv_va + IRQ_STACK_SIZE * PAGE_SIZE);
|
||||
set_stackptr(PSR_ABT32_MODE,
|
||||
abtstack.pv_va + ABT_STACK_SIZE * PAGE_SIZE);
|
||||
set_stackptr(PSR_UND32_MODE,
|
||||
undstack.pv_va + UND_STACK_SIZE * PAGE_SIZE);
|
||||
|
||||
/*
|
||||
* Well we should set a data abort handler.
|
||||
* Once things get going this will change as we will need a proper
|
||||
* handler.
|
||||
* Until then we will use a handler that just panics but tells us
|
||||
* why.
|
||||
* Initialisation of the vectors will just panic on a data abort.
|
||||
* This just fills in a slighly better one.
|
||||
*/
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("vectors ");
|
||||
#endif
|
||||
data_abort_handler_address = (u_int)data_abort_handler;
|
||||
prefetch_abort_handler_address = (u_int)prefetch_abort_handler;
|
||||
undefined_handler_address = (u_int)undefinedinstruction_bounce;
|
||||
|
||||
/* Initialise the undefined instruction handlers */
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("undefined ");
|
||||
#endif
|
||||
undefined_init();
|
||||
|
||||
/* Load memory into UVM. */
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("page ");
|
||||
#endif
|
||||
uvm_setpagesize(); /* initialize PAGE_SIZE-dependent variables */
|
||||
uvm_page_physload(atop(physical_freestart), atop(physical_freeend),
|
||||
atop(physical_freestart), atop(physical_freeend),
|
||||
VM_FREELIST_DEFAULT);
|
||||
|
||||
/* Boot strap pmap telling it where the kernel page table is */
|
||||
#ifdef VERBOSE_INIT_ARM
|
||||
printf("pmap ");
|
||||
#endif
|
||||
pmap_bootstrap(KERNEL_VM_BASE, KERNEL_VM_BASE + KERNEL_VM_SIZE);
|
||||
|
||||
#ifdef __HAVE_MEMORY_DISK__
|
||||
md_root_setconf(memory_disk, sizeof memory_disk);
|
||||
#endif
|
||||
|
||||
#ifdef BOOTHOWTO
|
||||
boothowto |= BOOTHOWTO;
|
||||
#endif
|
||||
|
||||
#ifdef KGDB
|
||||
if (boothowto & RB_KDB) {
|
||||
kgdb_debug_init = 1;
|
||||
kgdb_connect(1);
|
||||
}
|
||||
#endif
|
||||
|
||||
#if NKSYMS || defined(DDB) || defined(MODULAR)
|
||||
/* Firmware doesn't load symbols. */
|
||||
ddb_init(0, NULL, NULL);
|
||||
#endif
|
||||
|
||||
#ifdef DDB
|
||||
db_machine_init();
|
||||
if (boothowto & RB_KDB)
|
||||
Debugger();
|
||||
#endif
|
||||
|
||||
/* We have our own device_register() */
|
||||
evbarm_device_register = gumstix_device_register;
|
||||
|
||||
/* We return the new stack pointer address */
|
||||
return(kernelstack.pv_va + USPACE_SVC_STACK_TOP);
|
||||
return initarm_common(KERNEL_VM_BASE, KERNEL_VM_SIZE, NULL, 0);
|
||||
}
|
||||
|
||||
#if defined(GUMSTIX)
|
||||
|
|
@ -1034,7 +545,18 @@ read_system_serial(void)
|
|||
printf("%02x", system_serial[i]);
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
#elif defined(OVERO)
|
||||
|
||||
static void
|
||||
overo_reset(void)
|
||||
{
|
||||
|
||||
#if NPRCM > 0
|
||||
prcm_cold_reset();
|
||||
#endif
|
||||
}
|
||||
|
||||
static void
|
||||
find_cpu_clock(void)
|
||||
{
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: gumstix_start.S,v 1.12 2013/08/18 15:58:20 matt Exp $ */
|
||||
/* $NetBSD: gumstix_start.S,v 1.13 2014/05/23 13:56:18 kiyohara Exp $ */
|
||||
/*
|
||||
* Copyright (C) 2005, 2006 WIDE Project and SOUM Corporation.
|
||||
* All rights reserved.
|
||||
|
|
@ -66,7 +66,7 @@
|
|||
#include <arm/armreg.h>
|
||||
#include "assym.h"
|
||||
|
||||
RCSID("$NetBSD: gumstix_start.S,v 1.12 2013/08/18 15:58:20 matt Exp $")
|
||||
RCSID("$NetBSD: gumstix_start.S,v 1.13 2014/05/23 13:56:18 kiyohara Exp $")
|
||||
|
||||
/*
|
||||
* CPWAIT -- Canonical method to wait for CP15 update.
|
||||
|
|
@ -182,6 +182,14 @@ _C_LABEL(gumstix_start):
|
|||
mcr p15, 0, r0, c2, c0, 0 /* Set TTB */
|
||||
mcr p15, 0, r0, c8, c7, 0 /* Flush TLB */
|
||||
|
||||
#if defined(CPU_CORTEXA8)
|
||||
mcr p15, 0, r0, c2, c0, 1 /* Set TTB1 */
|
||||
mov r0, #TTBCR_S_N_1
|
||||
mcr p15, 0, r0, c2, c0, 2 /* Set TTBCR */
|
||||
mov r0, #0
|
||||
mcr p15, 0, r0, c8, c7, 0 /* Flush TLB */
|
||||
#endif
|
||||
|
||||
/*
|
||||
* Set the Domain Access register. Very important!
|
||||
* startup_pagetable puts to domain 0 now.
|
||||
|
|
|
|||
Loading…
Reference in New Issue