#include <elf.h>
#include <net.h>
#include <vxworks.h>
+#ifdef CONFIG_X86
+#include <asm/e820.h>
+#include <linux/linkage.h>
+#endif
+
+/*
+ * A very simple elf loader, assumes the image is valid, returns the
+ * entry point address.
+ */
+static unsigned long load_elf_image_phdr(unsigned long addr)
+{
+ Elf32_Ehdr *ehdr; /* Elf header structure pointer */
+ Elf32_Phdr *phdr; /* Program header structure pointer */
+ int i;
+
+ ehdr = (Elf32_Ehdr *)addr;
+ phdr = (Elf32_Phdr *)(addr + ehdr->e_phoff);
+
+ /* Load each program header */
+ for (i = 0; i < ehdr->e_phnum; ++i) {
+ void *dst = (void *)(uintptr_t)phdr->p_paddr;
+ void *src = (void *)addr + phdr->p_offset;
+ debug("Loading phdr %i to 0x%p (%i bytes)\n",
+ i, dst, phdr->p_filesz);
+ if (phdr->p_filesz)
+ memcpy(dst, src, phdr->p_filesz);
+ if (phdr->p_filesz != phdr->p_memsz)
+ memset(dst + phdr->p_filesz, 0x00,
+ phdr->p_memsz - phdr->p_filesz);
+ flush_cache((unsigned long)dst, phdr->p_filesz);
+ ++phdr;
+ }
+
+ return ehdr->e_entry;
+}
+
+static unsigned long load_elf_image_shdr(unsigned long addr)
+{
+ Elf32_Ehdr *ehdr; /* Elf header structure pointer */
+ Elf32_Shdr *shdr; /* Section header structure pointer */
+ unsigned char *strtab = 0; /* String table pointer */
+ unsigned char *image; /* Binary image pointer */
+ int i; /* Loop counter */
+
+ ehdr = (Elf32_Ehdr *)addr;
+
+ /* Find the section header string table for output info */
+ shdr = (Elf32_Shdr *)(addr + ehdr->e_shoff +
+ (ehdr->e_shstrndx * sizeof(Elf32_Shdr)));
+
+ if (shdr->sh_type == SHT_STRTAB)
+ strtab = (unsigned char *)(addr + shdr->sh_offset);
-static unsigned long load_elf_image_phdr(unsigned long addr);
-static unsigned long load_elf_image_shdr(unsigned long addr);
+ /* Load each appropriate section */
+ for (i = 0; i < ehdr->e_shnum; ++i) {
+ shdr = (Elf32_Shdr *)(addr + ehdr->e_shoff +
+ (i * sizeof(Elf32_Shdr)));
+
+ if (!(shdr->sh_flags & SHF_ALLOC) ||
+ shdr->sh_addr == 0 || shdr->sh_size == 0) {
+ continue;
+ }
+
+ if (strtab) {
+ debug("%sing %s @ 0x%08lx (%ld bytes)\n",
+ (shdr->sh_type == SHT_NOBITS) ? "Clear" : "Load",
+ &strtab[shdr->sh_name],
+ (unsigned long)shdr->sh_addr,
+ (long)shdr->sh_size);
+ }
+
+ if (shdr->sh_type == SHT_NOBITS) {
+ memset((void *)(uintptr_t)shdr->sh_addr, 0,
+ shdr->sh_size);
+ } else {
+ image = (unsigned char *)addr + shdr->sh_offset;
+ memcpy((void *)(uintptr_t)shdr->sh_addr,
+ (const void *)image, shdr->sh_size);
+ }
+ flush_cache(shdr->sh_addr, shdr->sh_size);
+ }
+
+ return ehdr->e_entry;
+}
/* Allow ports to override the default behavior */
static unsigned long do_bootelf_exec(ulong (*entry)(int, char * const[]),
char *bootline; /* Text of the bootline */
char *tmp; /* Temporary char pointer */
char build_buf[128]; /* Buffer for building the bootline */
+ int ptr = 0;
+#ifdef CONFIG_X86
+ struct e820info *info;
+ struct e820entry *data;
+#endif
/*
* Check the loadaddr variable.
/*
* Use bootaddr to find the location in memory that VxWorks
- * will look for the bootline string. The default value for
- * PowerPC is LOCAL_MEM_LOCAL_ADRS + BOOT_LINE_OFFSET which
- * defaults to 0x4200.
+ * will look for the bootline string. The default value is
+ * (LOCAL_MEM_LOCAL_ADRS + BOOT_LINE_OFFSET) as defined by
+ * VxWorks BSP. For example, on PowerPC it defaults to 0x4200.
*/
tmp = getenv("bootaddr");
- if (!tmp)
- bootaddr = CONFIG_SYS_VXWORKS_BOOT_ADDR;
- else
- bootaddr = simple_strtoul(tmp, NULL, 16);
-
- /*
- * Check to see if the bootline is defined in the 'bootargs'
- * parameter. If it is not defined, we may be able to
- * construct the info.
- */
- bootline = getenv("bootargs");
- if (bootline) {
- memcpy((void *)bootaddr, bootline,
- max(strlen(bootline), (size_t)255));
- flush_cache(bootaddr, max(strlen(bootline), (size_t)255));
+ if (!tmp) {
+ printf("## VxWorks bootline address not specified\n");
} else {
- sprintf(build_buf, CONFIG_SYS_VXWORKS_BOOT_DEVICE);
- tmp = getenv("bootfile");
- if (tmp)
- sprintf(&build_buf[strlen(build_buf)],
- "%s:%s ", CONFIG_SYS_VXWORKS_SERVERNAME, tmp);
- else
- sprintf(&build_buf[strlen(build_buf)],
- "%s:file ", CONFIG_SYS_VXWORKS_SERVERNAME);
+ bootaddr = simple_strtoul(tmp, NULL, 16);
- tmp = getenv("ipaddr");
- if (tmp)
- sprintf(&build_buf[strlen(build_buf)], "e=%s ", tmp);
+ /*
+ * Check to see if the bootline is defined in the 'bootargs'
+ * parameter. If it is not defined, we may be able to
+ * construct the info.
+ */
+ bootline = getenv("bootargs");
+ if (bootline) {
+ memcpy((void *)bootaddr, bootline,
+ max(strlen(bootline), (size_t)255));
+ flush_cache(bootaddr, max(strlen(bootline),
+ (size_t)255));
+ } else {
+ tmp = getenv("bootdev");
+ if (tmp) {
+ strcpy(build_buf, tmp);
+ ptr = strlen(tmp);
+ } else
+ printf("## VxWorks boot device not specified\n");
+
+ tmp = getenv("bootfile");
+ if (tmp)
+ ptr += sprintf(build_buf + ptr,
+ "host:%s ", tmp);
+ else
+ ptr += sprintf(build_buf + ptr,
+ "host:vxWorks ");
+
+ /*
+ * The following parameters are only needed if 'bootdev'
+ * is an ethernet device, otherwise they are optional.
+ */
+ tmp = getenv("ipaddr");
+ if (tmp) {
+ ptr += sprintf(build_buf + ptr, "e=%s", tmp);
+ tmp = getenv("netmask");
+ if (tmp) {
+ u32 mask = getenv_ip("netmask").s_addr;
+ ptr += sprintf(build_buf + ptr,
+ ":%08x ", ntohl(mask));
+ } else {
+ ptr += sprintf(build_buf + ptr, " ");
+ }
+ }
+
+ tmp = getenv("serverip");
+ if (tmp)
+ ptr += sprintf(build_buf + ptr, "h=%s ", tmp);
+
+ tmp = getenv("gatewayip");
+ if (tmp)
+ ptr += sprintf(build_buf + ptr, "g=%s ", tmp);
+
+ tmp = getenv("hostname");
+ if (tmp)
+ ptr += sprintf(build_buf + ptr, "tn=%s ", tmp);
+
+ tmp = getenv("othbootargs");
+ if (tmp) {
+ strcpy(build_buf + ptr, tmp);
+ ptr += strlen(tmp);
+ }
+
+ memcpy((void *)bootaddr, build_buf,
+ max(strlen(build_buf), (size_t)255));
+ flush_cache(bootaddr, max(strlen(build_buf),
+ (size_t)255));
+ }
- tmp = getenv("serverip");
- if (tmp)
- sprintf(&build_buf[strlen(build_buf)], "h=%s ", tmp);
+ printf("## Using bootline (@ 0x%lx): %s\n", bootaddr,
+ (char *)bootaddr);
+ }
- tmp = getenv("hostname");
- if (tmp)
- sprintf(&build_buf[strlen(build_buf)], "tn=%s ", tmp);
+#ifdef CONFIG_X86
+ /*
+ * Since E820 information is critical to the kernel, if we don't
+ * specify these in the environments, use a default one.
+ */
+ tmp = getenv("e820data");
+ if (tmp)
+ data = (struct e820entry *)simple_strtoul(tmp, NULL, 16);
+ else
+ data = (struct e820entry *)VXWORKS_E820_DATA_ADDR;
+ tmp = getenv("e820info");
+ if (tmp)
+ info = (struct e820info *)simple_strtoul(tmp, NULL, 16);
+ else
+ info = (struct e820info *)VXWORKS_E820_INFO_ADDR;
-#ifdef CONFIG_SYS_VXWORKS_ADD_PARAMS
- sprintf(&build_buf[strlen(build_buf)],
- CONFIG_SYS_VXWORKS_ADD_PARAMS);
+ memset(info, 0, sizeof(struct e820info));
+ info->sign = E820_SIGNATURE;
+ info->entries = install_e820_map(E820MAX, data);
+ info->addr = (info->entries - 1) * sizeof(struct e820entry) +
+ VXWORKS_E820_DATA_ADDR;
#endif
- memcpy((void *)bootaddr, build_buf,
- max(strlen(build_buf), (size_t)255));
- flush_cache(bootaddr, max(strlen(build_buf), (size_t)255));
- }
-
/*
* If the data at the load address is an elf image, then
* treat it like an elf image. Otherwise, assume that it is a
else
puts("## Not an ELF image, assuming binary\n");
- printf("## Using bootline (@ 0x%lx): %s\n", bootaddr,
- (char *)bootaddr);
printf("## Starting vxWorks at 0x%08lx ...\n", addr);
dcache_disable();
+#ifdef CONFIG_X86
+ /* VxWorks on x86 uses stack to pass parameters */
+ ((asmlinkage void (*)(int))addr)(0);
+#else
((void (*)(int))addr)(0);
+#endif
puts("## vxWorks terminated\n");
return 1;
}
-/*
- * A very simple elf loader, assumes the image is valid, returns the
- * entry point address.
- */
-static unsigned long load_elf_image_phdr(unsigned long addr)
-{
- Elf32_Ehdr *ehdr; /* Elf header structure pointer */
- Elf32_Phdr *phdr; /* Program header structure pointer */
- int i;
-
- ehdr = (Elf32_Ehdr *)addr;
- phdr = (Elf32_Phdr *)(addr + ehdr->e_phoff);
-
- /* Load each program header */
- for (i = 0; i < ehdr->e_phnum; ++i) {
- void *dst = (void *)(uintptr_t)phdr->p_paddr;
- void *src = (void *)addr + phdr->p_offset;
- debug("Loading phdr %i to 0x%p (%i bytes)\n",
- i, dst, phdr->p_filesz);
- if (phdr->p_filesz)
- memcpy(dst, src, phdr->p_filesz);
- if (phdr->p_filesz != phdr->p_memsz)
- memset(dst + phdr->p_filesz, 0x00,
- phdr->p_memsz - phdr->p_filesz);
- flush_cache((unsigned long)dst, phdr->p_filesz);
- ++phdr;
- }
-
- return ehdr->e_entry;
-}
-
-static unsigned long load_elf_image_shdr(unsigned long addr)
-{
- Elf32_Ehdr *ehdr; /* Elf header structure pointer */
- Elf32_Shdr *shdr; /* Section header structure pointer */
- unsigned char *strtab = 0; /* String table pointer */
- unsigned char *image; /* Binary image pointer */
- int i; /* Loop counter */
-
- ehdr = (Elf32_Ehdr *)addr;
-
- /* Find the section header string table for output info */
- shdr = (Elf32_Shdr *)(addr + ehdr->e_shoff +
- (ehdr->e_shstrndx * sizeof(Elf32_Shdr)));
-
- if (shdr->sh_type == SHT_STRTAB)
- strtab = (unsigned char *)(addr + shdr->sh_offset);
-
- /* Load each appropriate section */
- for (i = 0; i < ehdr->e_shnum; ++i) {
- shdr = (Elf32_Shdr *)(addr + ehdr->e_shoff +
- (i * sizeof(Elf32_Shdr)));
-
- if (!(shdr->sh_flags & SHF_ALLOC) ||
- shdr->sh_addr == 0 || shdr->sh_size == 0) {
- continue;
- }
-
- if (strtab) {
- debug("%sing %s @ 0x%08lx (%ld bytes)\n",
- (shdr->sh_type == SHT_NOBITS) ? "Clear" : "Load",
- &strtab[shdr->sh_name],
- (unsigned long)shdr->sh_addr,
- (long)shdr->sh_size);
- }
-
- if (shdr->sh_type == SHT_NOBITS) {
- memset((void *)(uintptr_t)shdr->sh_addr, 0,
- shdr->sh_size);
- } else {
- image = (unsigned char *)addr + shdr->sh_offset;
- memcpy((void *)(uintptr_t)shdr->sh_addr,
- (const void *)image, shdr->sh_size);
- }
- flush_cache(shdr->sh_addr, shdr->sh_size);
- }
-
- return ehdr->e_entry;
-}
-
U_BOOT_CMD(
bootelf, 3, 0, do_bootelf,
"Boot from an ELF image in memory",