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author | Oleksij Rempel <o.rempel@pengutronix.de> | 2018-06-06 09:59:12 +0200 |
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committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-06-18 10:02:29 +0200 |
commit | a54a47ff7710d12e5a6c88953b3da85cc162c1ea (patch) | |
tree | 07359d5046953e01db25b88776065b939a086df1 /arch/mips/lib/bootm.c | |
parent | 7c8679eebc8e4e69ba0afa370d85d3d6eb386997 (diff) | |
download | barebox-a54a47ff7710d12e5a6c88953b3da85cc162c1ea.tar.gz barebox-a54a47ff7710d12e5a6c88953b3da85cc162c1ea.tar.xz |
MIPS: bootm: add ELF handler
With this handler barebox will be able to start linux kernel as
is, without additional image conversion.
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/mips/lib/bootm.c')
-rw-r--r-- | arch/mips/lib/bootm.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/mips/lib/bootm.c b/arch/mips/lib/bootm.c index 91e7e1c68a..f14540a4c4 100644 --- a/arch/mips/lib/bootm.c +++ b/arch/mips/lib/bootm.c @@ -10,6 +10,7 @@ #include <restart.h> #include <asm/byteorder.h> +#include <asm/io.h> static int do_bootm_barebox(struct image_data *data) { @@ -42,11 +43,69 @@ static struct binfmt_hook binfmt_barebox_hook = { .exec = "bootm", }; +static int do_bootm_elf(struct image_data *data) +{ + void (*entry)(int, void *); + struct elf_image *elf; + void *fdt, *buf; + int ret = 0; + + buf = read_file(data->os_file, NULL); + if (!buf) + return -EINVAL; + + elf = elf_load_image(buf); + if (IS_ERR(elf)) + return PTR_ERR(elf); + + fdt = bootm_get_devicetree(data); + if (IS_ERR(fdt)) { + ret = PTR_ERR(fdt); + goto bootm_elf_done; + } + + pr_info("Starting application at 0x%08lx, dts 0x%08lx...\n", + phys_to_virt(elf->entry), data->of_root_node); + + if (data->dryrun) + goto bootm_elf_done; + + shutdown_barebox(); + + entry = (void *)elf->entry; + + entry(-2, phys_to_virt((unsigned long)fdt)); + + pr_err("ELF application terminated\n"); + ret = -EINVAL; + +bootm_elf_done: + elf_release_image(elf); + free(fdt); + free(buf); + + return ret; +} + +static struct image_handler elf_handler = { + .name = "ELF", + .bootm = do_bootm_elf, + .filetype = filetype_elf, +}; + +static struct binfmt_hook binfmt_elf_hook = { + .type = filetype_elf, + .exec = "bootm", +}; + static int mips_register_image_handler(void) { register_image_handler(&barebox_handler); binfmt_register(&binfmt_barebox_hook); + register_image_handler(&elf_handler); + binfmt_register(&binfmt_elf_hook); + return 0; } late_initcall(mips_register_image_handler); |