Remove the cmd_ prefix from command files

Now that they are in their own directory, we can remove this prefix.
This makes it easier to find a file since the prefix does not get in the
way.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Acked-by: Stefan Roese <sr@denx.de>
Acked-by: Przemyslaw Marczak <p.marczak@samsung.com>

1 files changed, 410 insertions, 0 deletions

diff --git a/cmd/elf.c b/cmd/elf.c
new file mode 100644
index 0000000..5190cc6
--- /dev/null
+++ b/cmd/elf.c
@@ -0,0 +1,410 @@
+/*
+ * Copyright (c) 2001 William L. Pitts
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are freely
+ * permitted provided that the above copyright notice and this
+ * paragraph and the following disclaimer are duplicated in all
+ * such forms.
+ *
+ * This software is provided "AS IS" and without any express or
+ * implied warranties, including, without limitation, the implied
+ * warranties of merchantability and fitness for a particular
+ * purpose.
+ */
+
+#include <common.h>
+#include <command.h>
+#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);
+
+	/* 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[]),
+				     int argc, char * const argv[])
+{
+	unsigned long ret;
+
+	/*
+	 * QNX images require the data cache is disabled.
+	 * Data cache is already flushed, so just turn it off.
+	 */
+	int dcache = dcache_status();
+	if (dcache)
+		dcache_disable();
+
+	/*
+	 * pass address parameter as argv[0] (aka command name),
+	 * and all remaining args
+	 */
+	ret = entry(argc, argv);
+
+	if (dcache)
+		dcache_enable();
+
+	return ret;
+}
+
+/*
+ * Determine if a valid ELF image exists at the given memory location.
+ * First look at the ELF header magic field, then make sure that it is
+ * executable.
+ */
+int valid_elf_image(unsigned long addr)
+{
+	Elf32_Ehdr *ehdr; /* Elf header structure pointer */
+
+	ehdr = (Elf32_Ehdr *)addr;
+
+	if (!IS_ELF(*ehdr)) {
+		printf("## No elf image at address 0x%08lx\n", addr);
+		return 0;
+	}
+
+	if (ehdr->e_type != ET_EXEC) {
+		printf("## Not a 32-bit elf image at address 0x%08lx\n", addr);
+		return 0;
+	}
+
+	return 1;
+}
+
+/* Interpreter command to boot an arbitrary ELF image from memory */
+int do_bootelf(cmd_tbl_t *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, *saddr;
+	const char *ep = getenv("autostart");
+
+	int rcode = 0;
+
+	sload = saddr = NULL;
+	if (argc == 3) {
+		sload = argv[1];
+		saddr = argv[2];
+	} else if (argc == 2) {
+		if (argv[1][0] == '-')
+			sload = argv[1];
+		else
+			saddr = argv[1];
+	}
+
+	if (saddr)
+		addr = simple_strtoul(saddr, NULL, 16);
+	else
+		addr = 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 - 1, argv + 1);
+	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(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	unsigned long addr; /* Address of image */
+	unsigned long bootaddr; /* 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
+	struct e820info *info;
+	struct e820entry *data;
+#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_WALNUT)
+	tmp = (char *)CONFIG_SYS_NVRAM_BASE_ADDR + 0x500;
+	eth_getenv_enetaddr("ethaddr", (uchar *)build_buf);
+	memcpy(tmp, &build_buf[3], 3);
+#elif defined(CONFIG_SYS_VXWORKS_MAC_PTR)
+	tmp = (char *)CONFIG_SYS_VXWORKS_MAC_PTR;
+	eth_getenv_enetaddr("ethaddr", (uchar *)build_buf);
+	memcpy(tmp, build_buf, 6);
+#else
+	puts("## Ethernet MAC address not copied to NV RAM\n");
+#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 = getenv("bootaddr");
+	if (!tmp) {
+		printf("## VxWorks bootline address not specified\n");
+	} 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));
+		} 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));
+		}
+
+		printf("## Using bootline (@ 0x%lx): %s\n", bootaddr,
+		       (char *)bootaddr);
+	}
+
+#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;
+
+	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
+
+	/*
+	 * 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_shdr(addr);
+	else
+		puts("## Not an ELF image, assuming binary\n");
+
+	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;
+}
+
+U_BOOT_CMD(
+	bootelf, 3, 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."
+);