Introduce rproc_elf_get_boot_addr() that returns the entry point of the elf file. This api auto detects the 64/32 bit elf file and returns the boot addr accordingly.
Signed-off-by: Lokesh Vutla lokeshvutla@ti.com --- drivers/remoteproc/rproc-elf-loader.c | 24 ++++++++++++++++++++++++ include/remoteproc.h | 12 ++++++++++++ test/dm/remoteproc.c | 2 ++ 3 files changed, 38 insertions(+)
diff --git a/drivers/remoteproc/rproc-elf-loader.c b/drivers/remoteproc/rproc-elf-loader.c index 42a78f4207..b38a226065 100644 --- a/drivers/remoteproc/rproc-elf-loader.c +++ b/drivers/remoteproc/rproc-elf-loader.c @@ -251,3 +251,27 @@ int rproc_elf_load_image(struct udevice *dev, ulong addr, ulong size) else return rproc_elf32_load_image(dev, addr, size); } + +static ulong rproc_elf32_get_boot_addr(ulong addr) +{ + Elf32_Ehdr *ehdr = (Elf32_Ehdr *)addr; + + return ehdr->e_entry; +} + +static ulong rproc_elf64_get_boot_addr(ulong addr) +{ + Elf64_Ehdr *ehdr = (Elf64_Ehdr *)addr; + + return ehdr->e_entry; +} + +ulong rproc_elf_get_boot_addr(struct udevice *dev, ulong addr) +{ + Elf32_Ehdr *ehdr = (Elf32_Ehdr *)addr; + + if (ehdr->e_ident[EI_CLASS] == ELFCLASS64) + return rproc_elf64_get_boot_addr(addr); + else + return rproc_elf32_get_boot_addr(addr); +} diff --git a/include/remoteproc.h b/include/remoteproc.h index 812e0f47c4..046cd9e54e 100644 --- a/include/remoteproc.h +++ b/include/remoteproc.h @@ -267,6 +267,16 @@ int rproc_elf64_load_image(struct udevice *dev, ulong addr, ulong size); * @return 0 if the image is successfully loaded, else appropriate error value. */ int rproc_elf_load_image(struct udevice *dev, unsigned long addr, ulong size); + +/** + * rproc_elf_get_boot_addr() - Get rproc's boot address. + * @dev: device loading the ELF image + * @addr: valid ELF image address + * + * This function returns the entry point address of the ELF + * image. + */ +ulong rproc_elf_get_boot_addr(struct udevice *dev, ulong addr); #else static inline int rproc_init(void) { return -ENOSYS; } static inline int rproc_dev_init(int id) { return -ENOSYS; } @@ -292,6 +302,8 @@ static inline int rproc_elf64_load_image(struct udevice *dev, ulong addr, static inline int rproc_elf_load_image(struct udevice *dev, ulong addr, ulong size) { return -ENOSYS; } +static inline ulong rproc_elf_get_boot_addr(struct udevice *dev, ulong addr) +{ return 0; } #endif
#endif /* _RPROC_H_ */ diff --git a/test/dm/remoteproc.c b/test/dm/remoteproc.c index c77361c8f4..1d9a9b32d5 100644 --- a/test/dm/remoteproc.c +++ b/test/dm/remoteproc.c @@ -174,6 +174,8 @@ static int dm_test_remoteproc_elf(struct unit_test_state *uts) /* Load firmware in loaded_firmware, and verify it */ ut_assertok(rproc_elf32_load_image(dev, (ulong)valid_elf32, size)); ut_assertok(memcmp(loaded_firmware, valid_elf32, loaded_firmware_size)); + ut_asserteq(rproc_elf_get_boot_addr(dev, (unsigned long)valid_elf32), + 0x08000000); unmap_physmem(loaded_firmware, MAP_NOCACHE);
/* Invalid ELF Magic */