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- // SPDX-License-Identifier: BSD-2-Clause
- /*
- * Copyright (c) 2001 William L. Pitts
- * All rights reserved.
- */
- #include <common.h>
- #include <command.h>
- #include <cpu_func.h>
- #include <elf.h>
- #include <env.h>
- #include <image.h>
- #include <log.h>
- #include <net.h>
- #include <vxworks.h>
- #ifdef CONFIG_X86
- #include <vbe.h>
- #include <asm/cache.h>
- #include <asm/e820.h>
- #include <linux/linkage.h>
- #endif
- /* Allow ports to override the default behavior */
- static unsigned long do_bootelf_exec(ulong (*entry)(int, char * const[]),
- int argc, char *const argv[])
- {
- unsigned long ret;
- /*
- * pass address parameter as argv[0] (aka command name),
- * and all remaining args
- */
- ret = entry(argc, argv);
- return ret;
- }
- /* Interpreter command to boot an arbitrary ELF image from memory */
- int do_bootelf(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
- {
- unsigned long addr; /* Address of the ELF image */
- unsigned long rc; /* Return value from user code */
- char *sload = NULL;
- const char *ep = env_get("autostart");
- int rcode = 0;
- /* Consume 'bootelf' */
- argc--; argv++;
- /* Check for flag. */
- if (argc >= 1 && (argv[0][0] == '-' && \
- (argv[0][1] == 'p' || argv[0][1] == 's'))) {
- sload = argv[0];
- /* Consume flag. */
- argc--; argv++;
- }
- /* Check for address. */
- if (argc >= 1 && strict_strtoul(argv[0], 16, &addr) != -EINVAL) {
- /* Consume address */
- argc--; argv++;
- } else
- addr = image_load_addr;
- if (!valid_elf_image(addr))
- return 1;
- if (sload && sload[1] == 'p')
- addr = load_elf_image_phdr(addr);
- else
- addr = load_elf_image_shdr(addr);
- if (ep && !strcmp(ep, "no"))
- return rcode;
- printf("## Starting application at 0x%08lx ...\n", addr);
- /*
- * pass address parameter as argv[0] (aka command name),
- * and all remaining args
- */
- rc = do_bootelf_exec((void *)addr, argc, argv);
- if (rc != 0)
- rcode = 1;
- printf("## Application terminated, rc = 0x%lx\n", rc);
- return rcode;
- }
- /*
- * 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(struct cmd_tbl *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 = image_load_addr;
- else
- addr = hextoul(argv[1], NULL);
- #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 = hextoul(tmp, NULL);
- /*
- * 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;
- }
- U_BOOT_CMD(
- bootelf, CONFIG_SYS_MAXARGS, 0, do_bootelf,
- "Boot from an ELF image in memory",
- "[-p|-s] [address]\n"
- "\t- load ELF image at [address] via program headers (-p)\n"
- "\t or via section headers (-s)"
- );
- U_BOOT_CMD(
- bootvx, 2, 0, do_bootvx,
- "Boot vxWorks from an ELF image",
- " [address] - load address of vxWorks ELF image."
- );
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