diff options
Diffstat (limited to 'sys/boot/uboot/common/main.c')
| -rw-r--r-- | sys/boot/uboot/common/main.c | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/sys/boot/uboot/common/main.c b/sys/boot/uboot/common/main.c new file mode 100644 index 0000000..2c793e7 --- /dev/null +++ b/sys/boot/uboot/common/main.c @@ -0,0 +1,226 @@ +/*- + * Copyright (c) 2000 Benno Rice <benno@jeamland.net> + * Copyright (c) 2000 Stephane Potvin <sepotvin@videotron.ca> + * Copyright (c) 2007 Semihalf, Rafal Jaworowski <raj@semihalf.com> + * 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``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/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <stand.h> +#include "bootstrap.h" + +#include "libuboot.h" +#include "api_public.h" + +struct uboot_devdesc currdev; +struct arch_switch archsw; /* MI/MD interface boundary */ +int devs_no; + +extern char end[]; +extern char bootprog_name[]; +extern char bootprog_rev[]; +extern char bootprog_date[]; +extern char bootprog_maker[]; + +static char bootargs[128]; + +extern unsigned char _etext[]; +extern unsigned char _edata[]; +extern unsigned char __bss_start[]; +extern unsigned char __sbss_start[]; +extern unsigned char __sbss_end[]; +extern unsigned char _end[]; + +extern void * syscall_ptr; + +struct sys_info * ub_get_sys_info(void); + + +void dump_si(struct sys_info *si) +{ +#ifdef DEBUG + printf("sys info:\n"); + printf(" clkbus\t= 0x%08x\n", si->clk_bus); + printf(" clkcpu\t= 0x%08x\n", si->clk_cpu); + printf(" bar\t\t= 0x%08x\n", si->bar); +#endif +} + +static void dump_sig(struct api_signature *sig) +{ +#ifdef DEBUG + printf("signature:\n"); + printf(" version\t= %d\n", sig->version); + printf(" checksum\t= 0x%08x\n", sig->checksum); + printf(" sc entry\t= 0x%08x\n", sig->syscall); +#endif +} +static void +dump_addr_info(void) +{ +#ifdef DEBUG + printf("\naddresses info:\n"); + printf(" _etext (sdata) = 0x%08x\n", (u_int32_t)_etext); + printf(" _edata = 0x%08x\n", (u_int32_t)_edata); + printf(" __sbss_start = 0x%08x\n", (u_int32_t)__sbss_start); + printf(" __sbss_end = 0x%08x\n", (u_int32_t)__sbss_end); + printf(" __sbss_start = 0x%08x\n", (u_int32_t)__bss_start); + printf(" _end = 0x%08x\n", (u_int32_t)_end); + printf(" syscall entry = 0x%08x\n", (u_int32_t)syscall_ptr); +#endif +} + +static uint64_t +memsize(int flags) +{ + int i; + struct sys_info * si; + + if ((si = ub_get_sys_info()) == NULL) + return 0; + + for (i = 0; i < si->mr_no; i++) + if (si->mr[i].flags == flags && si->mr[i].size) + return (si->mr[i].size); + + return 0; +} + +int +main(void) +{ + int i; + char *ch; + int bargc; + char **bargv; + + struct api_signature *sig = NULL; + + if (!api_search_sig(&sig)) + return -1; + + syscall_ptr = sig->syscall; + if (syscall_ptr == NULL) + return -2; + + if (sig->version > API_SIG_VERSION) + return -3; + + /* Clear BSS sections */ + bzero(__sbss_start, __sbss_end - __sbss_start); + bzero(__bss_start, _end - __bss_start); + + /* + * Set up console. + */ + cons_probe(); + + printf("Compatible API signature found @%x\n", sig); + + dump_sig(sig); + dump_addr_info(); + + /* + * Initialise the heap as early as possible. Once this is done, + * alloc() is usable. The stack is buried inside us, so this is + * safe. + */ + setheap((void *)end, (void *)(end + 512 * 1024)); + + /* + * Enumerate U-Boot devices + */ + if ((devs_no = ub_dev_enum()) == 0) + panic("no devices found"); + printf("Number of U-Boot devices found %d\n", devs_no); + + /* XXX all our dv_init()s currently don't do anything... */ + /* + * March through the device switch probing for things. + */ + for (i = 0; devsw[i] != NULL; i++) + if (devsw[i]->dv_init != NULL) + (devsw[i]->dv_init)(); + + printf("\n"); + printf("%s, Revision %s\n", bootprog_name, bootprog_rev); + printf("(%s, %s)\n", bootprog_maker, bootprog_date); + printf("Memory: %lldMB\n", memsize(MR_ATTR_DRAM) / 1024 / 1024); + printf("FLASH: %lldMB\n", memsize(MR_ATTR_FLASH) / 1024 / 1024); +// printf("SRAM: %lldMB\n", memsize(MR_ATTR_SRAM) / 1024 / 1024); + + /* XXX only support netbooting for now */ + for (i = 0; devsw[i] != NULL; i++) + if (strncmp(devsw[i]->dv_name, "net", strlen(devsw[i]->dv_name)) == 0) + break; + + if (devsw[i] == NULL) + panic("no network devices?!"); + + currdev.d_dev = devsw[i]; + currdev.d_type = currdev.d_dev->dv_type; + currdev.d_unit = 0; + + env_setenv("currdev", EV_VOLATILE, uboot_fmtdev(&currdev), + uboot_setcurrdev, env_nounset); + env_setenv("loaddev", EV_VOLATILE, uboot_fmtdev(&currdev), + env_noset, env_nounset); + + setenv("LINES", "24", 1); /* optional */ + setenv("prompt", "loader>", 1); + + archsw.arch_getdev = uboot_getdev; + archsw.arch_copyin = uboot_copyin; + archsw.arch_copyout = uboot_copyout; + archsw.arch_readin = uboot_readin; + archsw.arch_autoload = uboot_autoload; + + interact(); /* doesn't return */ + + return 0; +} + + +COMMAND_SET(heap, "heap", "show heap usage", command_heap); +static int +command_heap(int argc, char *argv[]) +{ + printf("heap base at %p, top at %p, used %ld\n", end, sbrk(0), + sbrk(0) - end); + + return(CMD_OK); +} + +COMMAND_SET(reboot, "reboot", "reboot the system", command_reboot); +static int +command_reboot(int argc, char *argv[]) +{ + printf("Resetting...\n"); + ub_reset(); + + printf("Reset failed!\n"); + while(1); +} |
