diff options
Diffstat (limited to 'sys/arch/moko/moko/moko_machdep.c')
| -rw-r--r-- | sys/arch/moko/moko/moko_machdep.c | 1254 |
1 files changed, 0 insertions, 1254 deletions
diff --git a/sys/arch/moko/moko/moko_machdep.c b/sys/arch/moko/moko/moko_machdep.c deleted file mode 100644 index d4bc8509407..00000000000 --- a/sys/arch/moko/moko/moko_machdep.c +++ /dev/null @@ -1,1254 +0,0 @@ -/* $OpenBSD: moko_machdep.c,v 1.4 2009/07/26 18:48:55 miod Exp $ */ -/* $NetBSD: lubbock_machdep.c,v 1.2 2003/07/15 00:25:06 lukem Exp $ */ - -/* - * Copyright (c) 2002, 2003 Genetec Corporation. All rights reserved. - * Written by Hiroyuki Bessho for Genetec Corporation. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. The name of Genetec Corporation may not be used to endorse or - * promote products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY GENETEC CORPORATION ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GENETEC CORPORATION - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - */ -/* - * Copyright (c) 2001 Wasabi Systems, Inc. - * All rights reserved. - * - * Written by Jason R. Thorpe for Wasabi Systems, Inc. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed for the NetBSD Project by - * Wasabi Systems, Inc. - * 4. The name of Wasabi Systems, Inc. may not be used to endorse - * or promote products derived from this software without specific prior - * written permission. - * - * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED - * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - */ - -/* - * Copyright (c) 1997,1998 Mark Brinicombe. - * Copyright (c) 1997,1998 Causality Limited. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by Mark Brinicombe - * for the NetBSD Project. - * 4. The name of the company nor the name of the author may be used to - * endorse or promote products derived from this software without specific - * prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. - * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, - * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR - * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * - */ - - -#include <sys/param.h> -#include <sys/device.h> -#include <sys/systm.h> -#include <sys/kernel.h> -#include <sys/exec.h> -#include <sys/proc.h> -#include <sys/msgbuf.h> -#include <sys/reboot.h> -#include <sys/termios.h> -#include <sys/kcore.h> - -#include <uvm/uvm_extern.h> - -#include <sys/conf.h> -#include <sys/queue.h> -#include <sys/device.h> -#include <dev/cons.h> -#include <dev/ic/smc91cxxreg.h> - -#include <machine/db_machdep.h> -#include <ddb/db_sym.h> -#include <ddb/db_extern.h> -#ifdef KGDB -#include <sys/kgdb.h> -#endif - -#include <machine/bootconfig.h> -#include <machine/bus.h> -#include <machine/cpu.h> -#include <machine/frame.h> -#include <arm/kcore.h> -#include <arm/machdep.h> -#include <machine/intr.h> -#include <arm/undefined.h> - -#include <arm/s3c2xx0/s3c2410reg.h> -#include <arm/s3c2xx0/s3c2410var.h> - -#ifdef CONF_HAVE_APM -#include "apm.h" -#if NAPM > 0 -#include <moko/dev/moko_apm.h> -#endif -#endif - -#include "wsdisplay.h" - -/* - * Address to map I/O registers in early initialize stage. - */ -#define SMDK2410_IO_VBASE 0xfd000000 - -/* Kernel text starts 3MB in from the bottom of the kernel address space. */ -#define KERNEL_OFFSET 0x00300000 -#define KERNEL_TEXT_BASE (KERNEL_BASE + KERNEL_OFFSET) -#define KERNEL_VM_BASE (KERNEL_BASE + 0x04000000) - -/* - * The range 0xc1000000 - 0xccffffff is available for kernel VM space - * Core-logic registers and I/O mappings occupy 0xfd000000 - 0xffffffff - */ -#define KERNEL_VM_SIZE 0x10000000 - -/* - * Address to call from cpu_reset() to reset the machine. - * This is machine architecture dependant as it varies depending - * on where the ROM appears when you turn the MMU off. - */ - -u_int cpu_reset_address = 0; - -/* Define various stack sizes in pages */ -#define IRQ_STACK_SIZE 1 -#define ABT_STACK_SIZE 1 -#ifdef IPKDB -#define UND_STACK_SIZE 2 -#else -#define UND_STACK_SIZE 1 -#endif - -BootConfig bootconfig; /* Boot config storage */ -char *boot_args = NULL; -char *boot_file = NULL; - -paddr_t physical_start; -paddr_t physical_freestart; -paddr_t physical_freeend; -paddr_t physical_end; -u_int free_pages; -int physmem = 0; - -/*int debug_flags;*/ -#ifndef PMAP_STATIC_L1S -int max_processes = 64; /* Default number */ -#endif /* !PMAP_STATIC_L1S */ - -/* Physical and virtual addresses for some global pages */ -pv_addr_t systempage; -pv_addr_t irqstack; -pv_addr_t undstack; -pv_addr_t abtstack; -extern pv_addr_t kernelstack; -pv_addr_t minidataclean; - -paddr_t msgbufphys; - -extern u_int data_abort_handler_address; -extern u_int prefetch_abort_handler_address; -extern u_int undefined_handler_address; - -#ifdef PMAP_DEBUG -extern int pmap_debug_level; -#endif - -#define KERNEL_PT_SYS 0 /* Page table for mapping proc0 zero page */ -#define KERNEL_PT_KERNEL 1 /* Page table for mapping kernel */ -#define KERNEL_PT_KERNEL_NUM 32 -#define KERNEL_PT_VMDATA (KERNEL_PT_KERNEL+KERNEL_PT_KERNEL_NUM) - /* Page tables for mapping kernel VM */ -#define KERNEL_PT_VMDATA_NUM 8 /* start with 32MB of KVM */ -#define NUM_KERNEL_PTS (KERNEL_PT_VMDATA + KERNEL_PT_VMDATA_NUM) - -pv_addr_t kernel_pt_table[NUM_KERNEL_PTS]; - -extern struct user *proc0paddr; - -#define BOOT_STRING_MAGIC 0x4f425344 - -char bootargs[MAX_BOOT_STRING]; -void process_kernel_args(char *); - -/* Prototypes */ - -void consinit(void); -void early_clkman(u_int, int); -void kgdb_port_init(void); -void change_clock(uint32_t v); - -bs_protos(bs_notimpl); - -#include "sscom.h" -#if NSSCOM > 0 -#include <arch/arm/s3c2xx0/sscom_var.h> -#endif - -#ifndef CONSPEED -#define CONSPEED B115200 /* What RedBoot uses */ -#endif -#ifndef CONMODE -#define CONMODE ((TTYDEF_CFLAG & ~(CSIZE | CSTOPB | PARENB)) | CS8) /* 8N1 */ -#endif - -int comcnspeed = CONSPEED; -int comcnmode = CONMODE; - - -/* - * void boot(int howto, char *bootstr) - * - * Reboots the system - * - * Deal with any syncing, unmounting, dumping and shutdown hooks, - * then reset the CPU. - */ -void -boot(int howto) -{ - if (cold) { - /* - * If the system is cold, just halt, unless the user - * explicitely asked for reboot. - */ - if ((howto & RB_USERREQ) == 0) - howto |= RB_HALT; - goto haltsys; - } - - /* - * If RB_NOSYNC was not specified sync the discs. - * Note: Unless cold is set to 1 here, syslogd will die during the - * unmount. It looks like syslogd is getting woken up only to find - * that it cannot page part of the binary in as the filesystem has - * been unmounted. - */ - if (!(howto & RB_NOSYNC)) - bootsync(howto); - - /* Say NO to interrupts */ - splhigh(); - -#if 0 - /* Do a dump if requested. */ - if ((howto & (RB_DUMP | RB_HALT)) == RB_DUMP) - dumpsys(); -#endif - -haltsys: - doshutdownhooks(); - - /* Make sure IRQ's are disabled */ - IRQdisable; - - if (howto & RB_HALT) { -#if NAPM > 0 - if (howto & RB_POWERDOWN) { - - printf("\nAttempting to power down...\n"); - delay(6000000); - zapm_poweroff(); - } -#endif - - printf("The operating system has halted.\n"); - printf("Please press any key to reboot.\n\n"); - cnpollc(1); - cngetc(); - cnpollc(0); - } - - printf("rebooting...\n"); - delay(6000000); -#if NAPM > 0 - zapm_restart(); -#endif - printf("reboot failed; spinning\n"); - while(1); - /*NOTREACHED*/ -} - -static __inline -pd_entry_t * -read_ttb(void) -{ - long ttb; - - __asm __volatile("mrc p15, 0, %0, c2, c0, 0" : "=r" (ttb)); - - - return (pd_entry_t *)(ttb & ~((1<<14)-1)); -} - -/* - * Mapping table for core kernel memory. These areas are mapped in - * init time at fixed virtual address with section mappings. - */ - -#define _A(a) ((a) & ~L1_S_OFFSET) -#define _S(s) (((s) + L1_S_SIZE - 1) & ~(L1_S_SIZE-1)) - -#define _V(n) (SMDK2410_IO_VBASE + (n) * L1_S_SIZE) - -#define GPIO_VBASE _V(0) -#define INTCTL_VBASE _V(1) -#define CLKMAN_VBASE _V(2) -#define UART_VBASE _V(3) -#define MOKO_VBASE_FREE _V(4) - -const struct pmap_devmap smdk2410_devmap[] = { - { - GPIO_VBASE, - _A(S3C2410_GPIO_BASE), - _S(S3C2410_GPIO_SIZE), - VM_PROT_READ|VM_PROT_WRITE, - PTE_NOCACHE - }, { - INTCTL_VBASE, - _A(S3C2410_INTCTL_BASE), - _S(S3C2410_INTCTL_SIZE), - VM_PROT_READ|VM_PROT_WRITE, - PTE_NOCACHE - }, { - CLKMAN_VBASE, - _A(S3C2410_CLKMAN_BASE), - _S(S3C24X0_CLKMAN_SIZE), - VM_PROT_READ|VM_PROT_WRITE, - PTE_NOCACHE - }, { /* UART registers for UART0, 1, 2. */ - UART_VBASE, - _A(S3C2410_UART0_BASE), - _S(S3C2410_UART_BASE(3) - S3C2410_UART0_BASE), - VM_PROT_READ|VM_PROT_WRITE, - PTE_NOCACHE - }, { - 0, 0, 0, 0 - } -}; - -#undef _A -#undef _S - -#define VERBOSE_INIT_ARM -static void -map_io_area(paddr_t pagedir) -{ - int loop; - - /* - * Map devices we can map w/ section mappings. - */ - loop = 0; - while (smdk2410_devmap[loop].pd_size) { - vsize_t sz; - -#ifdef VERBOSE_INIT_ARM - printf("%08lx -> %08lx @ %08lx\n", smdk2410_devmap[loop].pd_pa, - smdk2410_devmap[loop].pd_pa + smdk2410_devmap[loop].pd_size - 1, - smdk2410_devmap[loop].pd_va); -#endif - for (sz = 0; sz < smdk2410_devmap[loop].pd_size; sz += L1_S_SIZE) - pmap_map_section(pagedir, - smdk2410_devmap[loop].pd_va + sz, - smdk2410_devmap[loop].pd_pa + sz, - smdk2410_devmap[loop].pd_prot, - smdk2410_devmap[loop].pd_cache); - ++loop; - } -} - -/* - * simple memory mapping function used in early bootstrap stage - * before pmap is initialized. - * size and cacheability are ignored and map one section with nocache. - */ -static vaddr_t section_free = MOKO_VBASE_FREE; - -static int -bootstrap_bs_map(void *t, bus_addr_t bpa, bus_size_t size, - int flags, bus_space_handle_t *bshp) -{ - u_long startpa; - vaddr_t va; - pd_entry_t *pagedir = read_ttb(); - /* This assumes PA==VA for page directory */ - - /* search smdk2410_devmap for desired mapping */ - { - int i; - for (i = 0; smdk2410_devmap[i].pd_va != 0; i++) { - if (smdk2410_devmap[i].pd_pa <= bpa && - smdk2410_devmap[i].pd_pa+L1_S_SIZE > bpa) { - /* falls in region */ - *bshp = (bus_space_handle_t) - (smdk2410_devmap[i].pd_va + - (bpa - smdk2410_devmap[i].pd_pa)); - return (0); - } - } - }; - - va = section_free; - section_free += L1_S_SIZE; - - startpa = trunc_page(bpa); - pmap_map_section((vaddr_t)pagedir, va, startpa, - VM_PROT_READ | VM_PROT_WRITE, PTE_NOCACHE); - cpu_tlb_flushD(); - - *bshp = (bus_space_handle_t)(va + (bpa - startpa)); - - return(0); -} - -/* - * u_int initarm(...) - * - * Initial entry point on startup. This gets called before main() is - * entered. - * It should be responsible for setting up everything that must be - * in place when main is called. - * This includes - * Taking a copy of the boot configuration structure. - * Initialising the physical console so characters can be printed. - * Setting up page tables for the kernel - * Relocating the kernel to the bottom of physical memory - */ -u_int ol1pagetable; -void sscom_dump_init_state(void); - -/* - * format is 0xff << 8 is major, 0xff is revision - * ie gta01 -> 0x0100 (TODO, find revision info) - * ie gta02 -> 0x0200 (TODO, find revision info) - */ -uint32_t hardware_type; /* better way of doing this? */ - -u_int -initarm(void *arg) -{ - extern cpu_kcore_hdr_t cpu_kcore_hdr; - int loop; - int loop1; - u_int l1pagetable; - pv_addr_t kernel_l1pt; - paddr_t memstart; - psize_t memsize; - extern u_int32_t esym; /* &_end if no symbols are loaded */ - -#if 0 - int led_data = 0; -#endif - /* early bus_space_map support */ - int (*map_func_save)(void *, bus_addr_t, bus_size_t, int, - bus_space_handle_t *); -#if 0 - struct bus_space tmp_bs_tag; - - - /* XXX */ - /* start 32.768KHz OSC */ - ioreg_write(PXA2X0_CLKMAN_BASE + 0x08, 2); -#endif - - /* - * Heads up ... Setup the CPU / MMU / TLB functions - */ - if (set_cpufuncs()) - panic("cpu not recognized!"); - - /* Get ready for splfoo() */ - s3c2xx0_intr_bootstrap(INTCTL_VBASE); - - - -#if 0 - /* Calibrate the delay loop. */ -#endif - -#if 0 - /* - * Okay, RedBoot has provided us with the following memory map: - * - * Physical Address Range Description - * ----------------------- ---------------------------------- - * 0x00000000 - 0x01ffffff flash Memory (32MB) - * 0x04000000 - 0x05ffffff Application flash Memory (32MB) - * 0x08000000 - 0x080000ff I/O baseboard registers - * 0x0a000000 - 0x0a0fffff SRAM (1MB) - * 0x0c000000 - 0x0c0fffff Ethernet Controller - * 0x0e000000 - 0x0e0fffff Ethernet Controller (Attribute) - * 0x10000000 - 0x103fffff SA-1111 Companion Chip - * 0x14000000 - 0x17ffffff Expansion Card (64MB) - * 0x40000000 - 0x480fffff Processor Registers - * 0xa0000000 - 0xa3ffffff SDRAM Bank 0 (64MB) - * - * - * Virtual Address Range X C B Description - * ----------------------- - - - ---------------------------------- - * 0x00000000 - 0x00003fff N Y Y SDRAM - * 0x00004000 - 0x000fffff N Y N Boot ROM - * 0x00100000 - 0x01ffffff N N N Application Flash - * 0x04000000 - 0x05ffffff N N N Exp Application Flash - * 0x08000000 - 0x080fffff N N N I/O baseboard registers - * 0x0a000000 - 0x0a0fffff N N N SRAM - * 0x40000000 - 0x480fffff N N N Processor Registers - * 0xa0000000 - 0xa000ffff N Y N RedBoot SDRAM - * 0xa0017000 - 0xa3ffffff Y Y Y SDRAM - * 0xc0000000 - 0xcfffffff Y Y Y Cache Flush Region - * (done by this routine) - * 0xfd000000 - 0xfd0000ff N N N I/O baseboard registers - * 0xfd100000 - 0xfd2fffff N N N Processor Registers. - * 0xfd200000 - 0xfd2fffff N N N 0x10800000 registers - * - * The first level page table is at 0xa0004000. There are also - * 2 second-level tables at 0xa0008000 and 0xa0008400. - * - */ - -#endif - { - /* - * Tweak U-boots's pagetable so that we can access to - * some registers at same VA before and after installing - * our page table. - */ - paddr_t ttb = (paddr_t)read_ttb(); - map_io_area(ttb); - - cpu_tlb_flushD(); - } - - /* - * Examine the boot args string for options we need to know about - * now. - */ - /* XXX should really be done after setting up the console, but we - * XXX need to parse the console selection flags right now. */ - process_kernel_args((char *)0x30000000+KERNEL_OFFSET - MAX_BOOT_STRING - 1); - - -#if 0 - /* setup GPIO for BTUART, in case bootloader doesn't take care of it */ - pxa2x0_gpio_bootstrap(ZAURUS_GPIO_VBASE); - pxa2x0_gpio_set_function(42, GPIO_ALT_FN_1_IN); - pxa2x0_gpio_set_function(43, GPIO_ALT_FN_2_OUT); - pxa2x0_gpio_set_function(44, GPIO_ALT_FN_1_IN); - pxa2x0_gpio_set_function(45, GPIO_ALT_FN_2_OUT); - - /* FFUART */ - pxa2x0_gpio_set_function(34, GPIO_ALT_FN_1_IN); - pxa2x0_gpio_set_function(39, GPIO_ALT_FN_2_OUT); - pxa2x0_gpio_set_function(35, GPIO_ALT_FN_1_IN); - pxa2x0_gpio_set_function(40, GPIO_ALT_FN_2_OUT); - pxa2x0_gpio_set_function(41, GPIO_ALT_FN_2_OUT); - - /* STUART */ - pxa2x0_gpio_set_function(46, GPIO_ALT_FN_2_IN); - pxa2x0_gpio_set_function(47, GPIO_ALT_FN_1_OUT); -#endif - - /* XXX */ - pmap_devmap_bootstrap(l1pagetable, smdk2410_devmap); - /* - * Temporarily replace bus_space_map() functions so that - * console devices can get mapped. - * - * Note that this relies upon the fact that both regular - * and a4x bus_space tags use the same map function. - */ - map_func_save = s3c2xx0_bs_tag.bs_map; - s3c2xx0_bs_tag.bs_map = bootstrap_bs_map; - - /* setup a serial console for very early boot */ - consinit(); - -#ifdef KGDB - kgdb_port_init(); -#endif - - - /* Talk to the user */ - printf("\nOpenBSD/moko booting ...\n"); - - sscom_dump_init_state(); - - { - /* XXX - all Zaurus have this for now, fix memory sizing */ - memstart = 0x30000000; - memsize = 0x04000000; /* 64MB */ - } - -#define DEBUG -#ifdef DEBUG - printf("initarm: Configuring system ...\n"); -#endif - - /* Fake bootconfig structure for the benefit of pmap.c */ - /* XXX must make the memory description h/w independant */ - bootconfig.dramblocks = 1; - bootconfig.dram[0].address = memstart; - bootconfig.dram[0].pages = memsize / PAGE_SIZE; - - /* - * Set up the variables that define the availablilty of - * physical memory. For now, we're going to set - * physical_freestart to 0x30000000+KERNEL_OFFSET (where the kernel - * was loaded), and allocate the memory we need downwards. - * If we get too close to the page tables that RedBoot - * set up, we will panic. We will update physical_freestart - * and physical_freeend later to reflect what pmap_bootstrap() - * wants to see. - * - * XXX pmap_bootstrap() needs an enema. - */ - physical_start = bootconfig.dram[0].address; - physical_end = physical_start + (bootconfig.dram[0].pages * PAGE_SIZE); - - physical_freestart = 0x30009000UL; - physical_freeend = 0x30000000UL+KERNEL_OFFSET; - - physmem = (physical_end - physical_start) / PAGE_SIZE; - -#ifdef DEBUG - /* Tell the user about the memory */ - printf("physmemory: %d pages at 0x%08lx -> 0x%08lx\n", physmem, - physical_start, physical_end - 1); -#endif - - /* - * Okay, the kernel starts 2MB in from the bottom of physical - * memory. We are going to allocate our bootstrap pages downwards - * from there. - * - * We need to allocate some fixed page tables to get the kernel - * going. We allocate one page directory and a number of page - * tables and store the physical addresses in the kernel_pt_table - * array. - * - * The kernel page directory must be on a 16K boundary. The page - * tables must be on 4K bounaries. What we do is allocate the - * page directory on the first 16K boundary that we encounter, and - * the page tables on 4K boundaries otherwise. Since we allocate - * at least 3 L2 page tables, we are guaranteed to encounter at - * least one 16K aligned region. - */ - -#ifdef VERBOSE_INIT_ARM - printf("Allocating page tables\n"); -#endif - - free_pages = (physical_freeend - physical_freestart) / PAGE_SIZE; - -#ifdef VERBOSE_INIT_ARM - printf("freestart = 0x%08lx, free_pages = %d (0x%08x)\n", - physical_freestart, free_pages, free_pages); -#endif - - /* Define a macro to simplify memory allocation */ -#define valloc_pages(var, np) \ - alloc_pages((var).pv_pa, (np)); \ - (var).pv_va = KERNEL_BASE + (var).pv_pa - physical_start; - -#define alloc_pages(var, np) \ - physical_freeend -= ((np) * PAGE_SIZE); \ - if (physical_freeend < physical_freestart) \ - panic("initarm: out of memory"); \ - (var) = physical_freeend; \ - free_pages -= (np); \ - memset((char *)(var), 0, ((np) * PAGE_SIZE)); - - loop1 = 0; - kernel_l1pt.pv_pa = 0; - for (loop = 0; loop <= NUM_KERNEL_PTS; ++loop) { - /* Are we 16KB aligned for an L1 ? */ - if (((physical_freeend - L1_TABLE_SIZE) & (L1_TABLE_SIZE - 1)) == 0 - && kernel_l1pt.pv_pa == 0) { - valloc_pages(kernel_l1pt, L1_TABLE_SIZE / PAGE_SIZE); - } else { - valloc_pages(kernel_pt_table[loop1], - L2_TABLE_SIZE / PAGE_SIZE); - ++loop1; - } - } - - /* This should never be able to happen but better confirm that. */ - if (!kernel_l1pt.pv_pa || (kernel_l1pt.pv_pa & (L1_TABLE_SIZE-1)) != 0) - panic("initarm: Failed to align the kernel page directory"); - - /* - * Allocate a page for the system page mapped to V0x00000000 - * This page will just contain the system vectors and can be - * shared by all processes. - */ - alloc_pages(systempage.pv_pa, 1); - - /* Allocate stacks for all modes */ - valloc_pages(irqstack, IRQ_STACK_SIZE); - valloc_pages(abtstack, ABT_STACK_SIZE); - valloc_pages(undstack, UND_STACK_SIZE); - valloc_pages(kernelstack, UPAGES); - -#ifdef VERBOSE_INIT_ARM - printf("IRQ stack: p0x%08lx v0x%08lx\n", irqstack.pv_pa, - irqstack.pv_va); - printf("ABT stack: p0x%08lx v0x%08lx\n", abtstack.pv_pa, - abtstack.pv_va); - printf("UND stack: p0x%08lx v0x%08lx\n", undstack.pv_pa, - undstack.pv_va); - printf("SVC stack: p0x%08lx v0x%08lx\n", kernelstack.pv_pa, - kernelstack.pv_va); -#endif - - /* - * XXX Defer this to later so that we can reclaim the memory - * XXX used by the RedBoot page tables. - */ - alloc_pages(msgbufphys, round_page(MSGBUFSIZE) / PAGE_SIZE); - - /* - * Ok we have allocated physical pages for the primary kernel - * page tables - */ - -#ifdef VERBOSE_INIT_ARM - printf("Creating L1 page table at 0x%08lx\n", kernel_l1pt.pv_pa); -#endif - - /* - * 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_pa; - - /* Map the L2 pages tables in the L1 page table */ - pmap_link_l2pt(l1pagetable, 0x00000000, - &kernel_pt_table[KERNEL_PT_SYS]); - - 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]); - - /* 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 - * and the symbol table. */ - { - extern char etext[]; - size_t textsize = (u_int32_t) etext - KERNEL_TEXT_BASE; - size_t totalsize = esym - KERNEL_TEXT_BASE; - u_int logical; - - textsize = (textsize + PGOFSET) & ~PGOFSET; - totalsize = (totalsize + PGOFSET) & ~PGOFSET; - - logical = KERNEL_OFFSET; /* offset of kernel in RAM */ - - /* Update dump information */ - cpu_kcore_hdr.kernelbase = KERNEL_BASE; - cpu_kcore_hdr.kerneloffs = logical; - cpu_kcore_hdr.staticsize = totalsize; - - logical += pmap_map_chunk(l1pagetable, KERNEL_BASE + logical, - physical_start + logical, textsize, - VM_PROT_READ|VM_PROT_WRITE, PTE_CACHE); - 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 vector page. */ -#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 - -#if 1 - /* - * map integrated peripherals at same address in l1pagetable - * so that we can continue to use console. - */ - pmap_devmap_bootstrap(l1pagetable, smdk2410_devmap); -#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. - */ - { - physical_freestart = physical_start + - (((esym + PGOFSET) & ~PGOFSET) - KERNEL_BASE); - physical_freeend = physical_end; - free_pages = - (physical_freeend - physical_freestart) / PAGE_SIZE; - } - - /* be a client to all domains */ - cpu_domains(0x55555555); - /* Switch tables */ -#ifdef VERBOSE_INIT_ARM - printf("freestart = 0x%08lx - %08lx, free_pages = %d (0x%x)\n", - physical_freestart, physical_freeend, free_pages, free_pages); - printf("switching to new L1 page table @%#lx...", kernel_l1pt.pv_pa); -#endif - - /* set new intc register address so that splfoo() doesn't - touch illegal address. */ - s3c2xx0_intr_bootstrap(INTCTL_VBASE); - - - cpu_domains((DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)) | DOMAIN_CLIENT); - setttb(kernel_l1pt.pv_pa); - cpu_tlb_flushID(); - cpu_domains(DOMAIN_CLIENT << (PMAP_DOMAIN_KERNEL*2)); - - /* - * Moved from cpu_startup() as data_abort_handler() references - * this during uvm init - */ - proc0paddr = (struct user *)kernelstack.pv_va; - proc0.p_addr = proc0paddr; - - arm32_vector_init(ARM_VECTORS_LOW, ARM_VEC_ALL); - -#ifdef VERBOSE_INIT_ARM - printf("bootstrap done.\n"); -#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 slightly 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((pd_entry_t *)kernel_l1pt.pv_va, KERNEL_VM_BASE, - KERNEL_VM_BASE + KERNEL_VM_SIZE); - - /* Update dump information */ - cpu_kcore_hdr.pmap_kernel_l1 = (u_int32_t)pmap_kernel()->pm_l1; - cpu_kcore_hdr.pmap_kernel_l2 = (u_int32_t)&(pmap_kernel()->pm_l2); - -#ifdef __HAVE_MEMORY_DISK__ - md_root_setconf(memory_disk, sizeof memory_disk); -#endif - -#ifdef IPKDB - /* Initialise ipkdb */ - ipkdb_init(); - if (boothowto & RB_KDB) - ipkdb_connect(0); -#endif - -#ifdef KGDB - if (boothowto & RB_KDB) { - kgdb_debug_init = 1; - kgdb_connect(1); - } -#endif - - /* - * Restore proper bus_space operation, now that pmap is initialized. - */ - s3c2xx0_bs_tag.bs_map = map_func_save; - -#ifdef DDB - db_machine_init(); - - /* Firmware doesn't load symbols. */ - ddb_init(); - - if (boothowto & RB_KDB) - Debugger(); -#endif - - /* We return the new stack pointer address */ - return(kernelstack.pv_va + USPACE_SVC_STACK_TOP); -} - -const char *console = "glass"; - -void -process_kernel_args(char *args) -{ - char *cp = args; - - if (cp == NULL || *(int *)cp != BOOT_STRING_MAGIC) { - boothowto = RB_AUTOBOOT; - return; - } - - /* Eat the cookie */ - *(int *)cp = 0; - cp += sizeof(int); - - boothowto = 0; - - /* Make a local copy of the bootargs */ - strncpy(bootargs, cp, MAX_BOOT_STRING - sizeof(int)); - - cp = bootargs; - boot_file = bootargs; - - /* Skip the kernel image filename */ - while (*cp != ' ' && *cp != 0) - ++cp; - - if (*cp != 0) - *cp++ = 0; - - while (*cp == ' ') - ++cp; - - boot_args = cp; - - printf("bootfile: %s\n", boot_file); - printf("bootargs: %s\n", boot_args); - - /* Setup pointer to boot flags */ - while (*cp != '-') - if (*cp++ == '\0') - return; - - for (;*++cp;) { - int fl; - - fl = 0; - switch(*cp) { - case 'a': - fl |= RB_ASKNAME; - break; - case 'c': - fl |= RB_CONFIG; - break; - case 'd': - fl |= RB_KDB; - break; - case 's': - fl |= RB_SINGLE; - break; - /* XXX undocumented console switching flags */ - case '0': - console = "ffuart"; - break; - case '1': - console = "btuart"; - break; - case '2': - console = "stuart"; - break; - default: - printf("unknown option `%c'\n", *cp); - break; - } - boothowto |= fl; - } -} - -void -consinit(void) -{ - static int consinit_done = 0; - int conunit; -#if defined(SSCOM0CONSOLE) || defined(SSCOM1CONSOLE) - bus_space_tag_t iot = &s3c2xx0_bs_tag; -#endif - int pclk; - -#if 0 - char *console = CONSDEVNAME; -#endif - - if (consinit_done != 0) - return; - - consinit_done = 1; - - s3c24x0_clock_freq2(CLKMAN_VBASE, NULL, NULL, &pclk); - - - /* HORRID HACK */ - if (pclk == 66500000) { - conunit = 0; - hardware_type = 0x0100; /* what about revision? */ - } else if (pclk == 100000000) { - conunit = 2; - hardware_type = 0x0200; /* what about revision? */ - } else /* XXX */ - conunit = 0; - -#if NSSCOM > 0 - if (0 == s3c2410_sscom_cnattach(iot, conunit, comcnspeed, - pclk, comcnmode)) - return; -#if 0 - /* XXX - delete this block */ -#ifdef SSCOM1CONSOLE - if (0 == s3c2410_sscom_cnattach(iot, 1, comcnspeed, - pclk, comcnmode)) - return; -#endif -#endif /* delme */ -#endif /* NSSCOM */ - - consinit_done = 0; -} - -#ifdef KGDB -void -kgdb_port_init(void) -{ -#if (NCOM > 0) && defined(COM_PXA2X0) - paddr_t paddr; - u_int cken; - - if (strcmp(kgdb_devname, "ffuart") == 0) { - paddr = PXA2X0_FFUART_BASE; - cken = CKEN_FFUART; - } else if (strcmp(kgdb_devname, "btuart") == 0) { - paddr = PXA2X0_BTUART_BASE; - cken = CKEN_BTUART; - } else if (strcmp(kgdb_devname, "stuart") == 0) { - paddr = PXA2X0_STUART_BASE; - cken = CKEN_STUART; - irda_on(0); - } else - return; - - if (com_kgdb_attach_pxa2x0(&pxa2x0_a4x_bs_tag, paddr, - kgdb_rate, PXA2X0_COM_FREQ, COM_TYPE_PXA2x0, comkgdbmode) == 0) { - early_clkman(cken, 1); - } -#endif -} -#endif - -int glass_console = 0; - -void -board_startup(void) -{ - extern int lcd_cnattach(void (*)(u_int, int)); - -#ifdef ENABLE_LCD_CONSOLE -#if NWSDISPLAY > 0 - extern bus_addr_t comconsaddr; - /* - * Try to attach the display console now that VM services - * are available. - */ - - if ((cputype & ~CPU_ID_XSCALE_COREREV_MASK) == CPU_ID_PXA27X) { - if (strcmp(console, "glass") == 0) { - printf("attempting to switch console to lcd screen\n"); - glass_console = 1; - } - if (glass_console == 1 && lcd_cnattach(early_clkman) == 0) { - /* - * Kill the existing serial console. - * XXX need to bus_space_unmap resources and disable - * clocks... - */ - comconsaddr = 0; - - /* - * Display the copyright notice again on the new console - */ - extern const char copyright[]; - printf("%s\n", copyright); - } - } -#endif -#endif /* ENABLE_LCD_CONSOLE */ - - if (boothowto & RB_CONFIG) { -#ifdef BOOT_CONFIG - user_config(); -#else - printf("kernel does not support -c; continuing..\n"); -#endif - } -} - -static struct arm32_dma_range smdk2410_dma_ranges[1]; - -bus_dma_tag_t -s3c2xx0_bus_dma_init(struct arm32_bus_dma_tag *dma_tag_template) -{ - extern paddr_t physical_start, physical_end; - struct arm32_bus_dma_tag *dmat; - - smdk2410_dma_ranges[0].dr_sysbase = physical_start; - smdk2410_dma_ranges[0].dr_busbase = physical_start; - smdk2410_dma_ranges[0].dr_len = physical_end - physical_start; - -#if 1 - dmat = dma_tag_template; -#else - dmat = malloc(sizeof *dmat, M_DEVBUF, M_NOWAIT); - if (dmat == NULL) - return NULL; - *dmat = *dma_tag_template; -#endif - - dmat->_ranges = smdk2410_dma_ranges; - dmat->_nranges = 1; - - return dmat; -} - |