Merge branch 'x86-vdso-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[firefly-linux-kernel-4.4.55.git] / Documentation / kernel-parameters.txt
index a89e326375702dae82244472e9955564e2949060..01aa47d3b6ab607e6a66f2a6a827b4b1afe4da73 100644 (file)
@@ -970,6 +970,18 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
                smh     Use ARM semihosting calls for early console.
 
+               s3c2410,<addr>
+               s3c2412,<addr>
+               s3c2440,<addr>
+               s3c6400,<addr>
+               s5pv210,<addr>
+               exynos4210,<addr>
+                       Use early console provided by serial driver available
+                       on Samsung SoCs, requires selecting proper type and
+                       a correct base address of the selected UART port. The
+                       serial port must already be setup and configured.
+                       Options are not yet supported.
+
        earlyprintk=    [X86,SH,BLACKFIN,ARM,M68k]
                        earlyprintk=vga
                        earlyprintk=efi
@@ -1024,7 +1036,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        Format: {"off" | "on" | "skip[mbr]"}
 
        efi=            [EFI]
-                       Format: { "old_map", "nochunk", "noruntime" }
+                       Format: { "old_map", "nochunk", "noruntime", "debug" }
                        old_map [X86-64]: switch to the old ioremap-based EFI
                        runtime services mapping. 32-bit still uses this one by
                        default.
@@ -1032,6 +1044,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        boot stub, as chunking can cause problems with some
                        firmware implementations.
                        noruntime : disable EFI runtime services support
+                       debug: enable misc debug output
 
        efi_no_storage_paranoia [EFI; X86]
                        Using this parameter you can use more than 50% of