app: aboot: add target boot params
Make aboot to get target specific boot params so that boot params can be
appended to kernel command line.
Also fix mdmkrypton to provide 'root=' as target boot param to get rid of
hardcoded root device name from boot image.
Change-Id: I10129a0249438b8bc7da1ea8a8c0097489e6e289
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
diff --git a/target/mdmkrypton/init.c b/target/mdmkrypton/init.c
index d362633..89e17ad 100644
--- a/target/mdmkrypton/init.c
+++ b/target/mdmkrypton/init.c
@@ -223,3 +223,41 @@
return restart_reason;
}
+int get_target_boot_params(const char *cmdline, const char *part, char *buf,
+ int buflen)
+{
+ struct ptable *ptable;
+ int system_ptn_index = -1;
+
+ if (!cmdline || !part || !buf || buflen < 0) {
+ dprintf(CRITICAL, "WARN: Invalid input param\n");
+ return -1;
+ }
+
+ ptable = flash_get_ptable();
+ if (!ptable) {
+ dprintf(CRITICAL,
+ "WARN: Cannot get flash partition table\n");
+ return -1;
+ }
+
+ system_ptn_index = ptable_get_index(ptable, part);
+ if (system_ptn_index < 0) {
+ dprintf(CRITICAL,
+ "WARN: Cannot get partition index for %s\n", part);
+ return -1;
+ }
+
+ /*
+ * check if cmdline contains "root=" at the beginning of buffer or
+ * " root=" in the middle of buffer.
+ */
+ if (((!strncmp(cmdline, "root=", strlen("root="))) ||
+ (strstr(cmdline, " root="))))
+ dprintf(DEBUG, "DEBUG: cmdline has root=\n");
+ else
+ snprintf(buf, buflen, " root=/dev/mtdblock%d",
+ system_ptn_index);
+
+ return 0;
+}