[PATCH] powerpc: Parse early parameters earlier

Currently we have call parse_early_param() earliyish, but not really very
early. In particular, it's not early enough to do things like mem=x or
crashkernel=blah, which is annoying.

So do it earlier. I've checked all the early param handlers, and none of them
look like they should have any trouble with this. I haven't tested the
booke_wdt ones though.

On 32-bit we were doing the CONFIG_CMDLINE logic twice, so don't.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 5 insertions, 0 deletions

diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 9a07f97f0712..4ca608c9cd72 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1292,6 +1292,11 @@ void __init early_init_devtree(void *params)
         lmb_init();
         of_scan_flat_dt(early_init_dt_scan_root, NULL);
         of_scan_flat_dt(early_init_dt_scan_memory, NULL);
+
+        /* Save command line for /proc/cmdline and then parse parameters */
+        strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
+        parse_early_param();
+
         lmb_enforce_memory_limit(memory_limit);
         lmb_analyze();