int cpu_release(int nr, int argc, char * const argv[])
{
u64 boot_addr;
u64 *table = (u64 *)get_spin_tbl_addr();
int pos;
pos = core_to_pos(nr);
if (pos <= 0)
return -1;
table += pos * WORDS_PER_SPIN_TABLE_ENTRY;
boot_addr = simple_strtoull(argv[0], NULL, 16);
table[SPIN_TABLE_ELEM_ENTRY_ADDR_IDX] = boot_addr;
flush_dcache_range((unsigned long)table,
(unsigned long)table + SPIN_TABLE_ELEM_SIZE);
asm volatile("dsb st");
smp_kick_all_cpus(); /* only those with entry addr set will run */
return 0;
}
/*
* Interpreter command to boot VxWorks from a memory image. The image can
* be either an ELF image or a raw binary. Will attempt to setup the
* bootline and other parameters correctly.
*/
int do_bootvx(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
unsigned long addr; /* Address of image */
unsigned long bootaddr = 0; /* Address to put the bootline */
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
ulong base;
struct e820_info *info;
struct e820_entry *data;
struct efi_gop_info *gop;
struct vesa_mode_info *vesa = &mode_info.vesa;
#endif
/*
* Check the loadaddr variable.
* If we don't know where the image is then we're done.
*/
if (argc < 2)
addr = load_addr;
else
addr = simple_strtoul(argv[1], NULL, 16);
#if defined(CONFIG_CMD_NET)
/*
* Check to see if we need to tftp the image ourselves
* before starting
*/
if ((argc == 2) && (strcmp(argv[1], "tftp") == 0)) {
if (net_loop(TFTPGET) <= 0)
return 1;
printf("Automatic boot of VxWorks image at address 0x%08lx ...\n",
addr);
}
#endif
/*
* This should equate to
* NV_RAM_ADRS + NV_BOOT_OFFSET + NV_ENET_OFFSET
* from the VxWorks BSP header files.
* This will vary from board to board
*/
#if defined(CONFIG_SYS_VXWORKS_MAC_PTR)
tmp = (char *)CONFIG_SYS_VXWORKS_MAC_PTR;
eth_env_get_enetaddr("ethaddr", (uchar *)build_buf);
memcpy(tmp, build_buf, 6);
#else
puts("## Ethernet MAC address not copied to NV RAM\n");
#endif
#ifdef CONFIG_X86
/*
* Get VxWorks's physical memory base address from environment,
* if we don't specify it in the environment, use a default one.
*/
base = env_get_hex("vx_phys_mem_base", VXWORKS_PHYS_MEM_BASE);
data = (struct e820_entry *)(base + E820_DATA_OFFSET);
info = (struct e820_info *)(base + E820_INFO_OFFSET);
memset(info, 0, sizeof(struct e820_info));
info->sign = E820_SIGNATURE;
info->entries = install_e820_map(E820MAX, data);
info->addr = (info->entries - 1) * sizeof(struct e820_entry) +
E820_DATA_OFFSET;
/*
* Explicitly clear the bootloader image size otherwise if memory
* at this offset happens to contain some garbage data, the final
* available memory size for the kernel is insane.
*/
*(u32 *)(base + BOOT_IMAGE_SIZE_OFFSET) = 0;
/*
* Prepare compatible framebuffer information block.
* The VESA mode has to be 32-bit RGBA.
*/
if (vesa->x_resolution && vesa->y_resolution) {
gop = (struct efi_gop_info *)(base + EFI_GOP_INFO_OFFSET);
gop->magic = EFI_GOP_INFO_MAGIC;
gop->info.version = 0;
gop->info.width = vesa->x_resolution;
gop->info.height = vesa->y_resolution;
gop->info.pixel_format = EFI_GOT_RGBA8;
gop->info.pixels_per_scanline = vesa->bytes_per_scanline / 4;
gop->fb_base = vesa->phys_base_ptr;
gop->fb_size = vesa->bytes_per_scanline * vesa->y_resolution;
}
#endif
/*
* Use bootaddr to find the location in memory that VxWorks
* 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 = env_get("bootaddr");
if (!tmp) {
#ifdef CONFIG_X86
bootaddr = base + X86_BOOT_LINE_OFFSET;
#else
printf("## VxWorks bootline address not specified\n");
return 1;
#endif
}
if (!bootaddr)
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 = env_get("bootargs");
if (!bootline) {
tmp = env_get("bootdev");
if (tmp) {
strcpy(build_buf, tmp);
ptr = strlen(tmp);
} else {
printf("## VxWorks boot device not specified\n");
}
tmp = env_get("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 = env_get("ipaddr");
if (tmp) {
ptr += sprintf(build_buf + ptr, "e=%s", tmp);
tmp = env_get("netmask");
if (tmp) {
u32 mask = env_get_ip("netmask").s_addr;
ptr += sprintf(build_buf + ptr,
":%08x ", ntohl(mask));
} else {
ptr += sprintf(build_buf + ptr, " ");
}
}
tmp = env_get("serverip");
if (tmp)
ptr += sprintf(build_buf + ptr, "h=%s ", tmp);
tmp = env_get("gatewayip");
if (tmp)
ptr += sprintf(build_buf + ptr, "g=%s ", tmp);
tmp = env_get("hostname");
if (tmp)
ptr += sprintf(build_buf + ptr, "tn=%s ", tmp);
tmp = env_get("othbootargs");
if (tmp) {
strcpy(build_buf + ptr, tmp);
ptr += strlen(tmp);
}
bootline = build_buf;
}
memcpy((void *)bootaddr, bootline, max(strlen(bootline), (size_t)255));
flush_cache(bootaddr, max(strlen(bootline), (size_t)255));
printf("## Using bootline (@ 0x%lx): %s\n", bootaddr, (char *)bootaddr);
/*
* If the data at the load address is an elf image, then
* treat it like an elf image. Otherwise, assume that it is a
* binary image.
*/
if (valid_elf_image(addr))
addr = load_elf_image_phdr(addr);
else
puts("## Not an ELF image, assuming binary\n");
printf("## Starting vxWorks at 0x%08lx ...\n", addr);
dcache_disable();
#if defined(CONFIG_ARM64) && defined(CONFIG_ARMV8_PSCI)
armv8_setup_psci();
smp_kick_all_cpus();
#endif
#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;
}
