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-rw-r--r--sys/boot/uboot/common/main.c226
1 files changed, 226 insertions, 0 deletions
diff --git a/sys/boot/uboot/common/main.c b/sys/boot/uboot/common/main.c
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+++ b/sys/boot/uboot/common/main.c
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+/*-
+ * 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);
+}
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