diff options
| author | Simon Glass <sjg@chromium.org> | 2014-10-19 21:11:21 -0600 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2014-10-22 09:03:05 -0600 |
| commit | 97d1e0c85018d061ffa4ae612903cd26a795d385 (patch) | |
| tree | 4e51ae6053d281345199f7904c10863b885cfb20 /arch/x86/lib/zimage.c | |
| parent | 0d0ba59ccd135addc345568e5678400d01d356db (diff) | |
x86: Allow cmdline setup in setup_zimage() to be optional
If we are passing this using the device tree then we may not want to
set this up here.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86/lib/zimage.c')
| -rw-r--r-- | arch/x86/lib/zimage.c | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/arch/x86/lib/zimage.c b/arch/x86/lib/zimage.c index 1f59bf2643..2f0e92f123 100644 --- a/arch/x86/lib/zimage.c +++ b/arch/x86/lib/zimage.c @@ -243,18 +243,21 @@ int setup_zimage(struct boot_params *setup_base, char *cmd_line, int auto_boot, hdr->loadflags |= HEAP_FLAG; } - if (bootproto >= 0x0202) { - hdr->cmd_line_ptr = (uintptr_t)cmd_line; - } else if (bootproto >= 0x0200) { - setup_base->screen_info.cl_magic = COMMAND_LINE_MAGIC; - setup_base->screen_info.cl_offset = - (uintptr_t)cmd_line - (uintptr_t)setup_base; + if (cmd_line) { + if (bootproto >= 0x0202) { + hdr->cmd_line_ptr = (uintptr_t)cmd_line; + } else if (bootproto >= 0x0200) { + setup_base->screen_info.cl_magic = COMMAND_LINE_MAGIC; + setup_base->screen_info.cl_offset = + (uintptr_t)cmd_line - (uintptr_t)setup_base; + + hdr->setup_move_size = 0x9100; + } - hdr->setup_move_size = 0x9100; + /* build command line at COMMAND_LINE_OFFSET */ + build_command_line(cmd_line, auto_boot); } - /* build command line at COMMAND_LINE_OFFSET */ - build_command_line(cmd_line, auto_boot); return 0; } |