diff options
Diffstat (limited to 'sys/arch/armish/stand/boot/boot.c')
| -rw-r--r-- | sys/arch/armish/stand/boot/boot.c | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/sys/arch/armish/stand/boot/boot.c b/sys/arch/armish/stand/boot/boot.c new file mode 100644 index 00000000000..ed47f80bc92 --- /dev/null +++ b/sys/arch/armish/stand/boot/boot.c @@ -0,0 +1,75 @@ +/* $OpenBSD: boot.c,v 1.1 2006/07/28 17:12:06 kettenis Exp $ */ + +/* + * Copyright (c) 2006 Mark Kettenis + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include <lib/libsa/stand.h> +#include <lib/libsa/loadfile.h> + +int +main(void) +{ + u_long marks[MARK_MAX]; + + cons_init(); + + printf("OpenBSD/armish boot\n"); + + printf("OIOWTVR: 0x%x\n", *((volatile uint32_t *)0xffffe15c)); + printf("ATUCR: 0x%x\n", *((volatile uint32_t *)0xffffe180)); + printf("ATU_OIOWTVR: 0x%x\n", *((volatile uint32_t *)0xffffe15c)); + printf("ATU_OMWTVR0: 0x%x\n", *((volatile uint32_t *)0xffffe160)); + printf("ATU_OUMWTVR0: 0x%x\n", *((volatile uint32_t *)0xffffe164)); + printf("ATU_OMWTVR1: 0x%x\n", *((volatile uint32_t *)0xffffe168)); + printf("ATU_OUMWTVR1: 0x%x\n", *((volatile uint32_t *)0xffffe16c)); + volatile uint32_t *p = ((volatile uint32_t *)0xffffe180); + *p = 1<<1; + printf("ATUCR: 0x%x\n", *((volatile uint32_t *)0xffffe180)); + +#define L1_S_SHIFT 20 + { + uint32_t *pde; + + __asm volatile("mrc p15, 0, %0, c2, c0, 0" : "=r" (pde)); + + printf("pde %x\n", pde); + pde = (uint32_t *)((uint32_t) pde & 0x0fffffff); + printf("mapping of %x is %x\n", p, pde[(u_int32_t)p >> L1_S_SHIFT]); + p = (u_int32_t *)0x90000000; + printf("mapping of %x is %x\n", p, pde[(u_int32_t)p >> L1_S_SHIFT]); + p = (u_int32_t *)0xa0000000; + printf("mapping of %x is %x\n", p, pde[(u_int32_t)p >> L1_S_SHIFT]); + p = (u_int32_t *)0x00000000; + printf("mapping of %x is %x\n", p, pde[(u_int32_t)p >> L1_S_SHIFT]); + + p = (u_int32_t *)0x90000000; + pde[(u_int32_t)p >> L1_S_SHIFT] = ((uint32_t)p & 0xfff00000) | 0xc02; + printf("new mapping of %x is %x\n", p, pde[(u_int32_t)p >> L1_S_SHIFT]); + + } + + marks[MARK_START] = 0; + if (loadfile("wd2a:/bsd", marks, LOAD_ALL) < 0) { + printf("loadfile: errno %\n", errno); + goto err; + } + + run_loadfile(marks, 0); + + err: + printf("halted..."); + for (;;) ; +} |