lib: elf: Move the generic elf loading/validating functions to lib

Move the generic elf loading/validating functions to lib/
so that they can be re-used and accessed by code existing
outside cmd.

While at it remove the duplicate static version of load_elf_image_phdr
under arch/arm/mach-imx/imx_bootaux.c.

Signed-off-by: Keerthy <j-keerthy@ti.com>
Suggested-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>

1 files changed, 0 insertions, 64 deletions

diff --git a/arch/arm/mach-imx/imx_bootaux.c b/arch/arm/mach-imx/imx_bootaux.c
index 21e96f8c88..ec0da1164f 100644
--- a/arch/arm/mach-imx/imx_bootaux.c
+++ b/arch/arm/mach-imx/imx_bootaux.c
@@ -12,70 +12,6 @@
 #include <linux/compiler.h>
 #include <cpu_func.h>
 
-#ifndef CONFIG_IMX8M
-const __weak struct rproc_att hostmap[] = { };
-
-static const struct rproc_att *get_host_mapping(unsigned long auxcore)
-{
-	const struct rproc_att *mmap = hostmap;
-
-	while (mmap && mmap->size) {
-		if (mmap->da <= auxcore &&
-		    mmap->da + mmap->size > auxcore)
-			return mmap;
-		mmap++;
-	}
-
-	return NULL;
-}
-
-/*
- * 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, ++phdr) {
-		const struct rproc_att *mmap = get_host_mapping(phdr->p_paddr);
-		void *dst, *src;
-
-		if (phdr->p_type != PT_LOAD)
-			continue;
-
-		if (!mmap) {
-			printf("Invalid aux core address: %08x",
-			       phdr->p_paddr);
-			return 0;
-		}
-
-		dst = (void *)(phdr->p_paddr - mmap->da) + mmap->sa;
-		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 &
-			    ~(CONFIG_SYS_CACHELINE_SIZE - 1),
-			    ALIGN(phdr->p_filesz, CONFIG_SYS_CACHELINE_SIZE));
-	}
-
-	return ehdr->e_entry;
-}
-#endif
-
 int arch_auxiliary_core_up(u32 core_id, ulong addr)
 {
 	ulong stack, pc;