Initial commit

package/boot/kobs-ng/patches/003-raw-mode.patch

@@ -0,0 +1,45 @@
+The downstream Freescale vendor kernel has a patch that allows determining
+if raw NAND flash mode is provided via a debugfs file. This is not present
+in upstream kernels, but the raw access support was added in the 3.19
+kernel, so we will check the kernel version if we can't find the file.
+--- a/src/mtd.c
++++ b/src/mtd.c
+@@ -34,6 +34,7 @@
+ #include <errno.h>
+ #include <sys/types.h>
+ #include <sys/ioctl.h>
++#include <sys/utsname.h>
+ 
+ #include "mtd.h"
+ #include "rand.h"
+@@ -808,15 +809,27 @@ struct mtd_data *mtd_open(const struct m
+ 	md->cfg = *cfg;
+ 
+ 	/* check if use new raw access mode */
++	/* by looking for debugfs from fsl patch */
++	md->raw_mode_flag = 0;
+ 	fp = fopen("/sys/kernel/debug/gpmi-nand/raw_mode", "r");
+ 	if (!fp) {
+-		md->raw_mode_flag = 0;
+-		vp(md, "mtd: use legacy raw access mode\n");
++		/* fallback to kernel version: raw access added in 3.19 */
++		struct utsname uts;
++		if (!uname(&uts)) {
++			int major = 0, minor = 0;
++			sscanf(uts.release, "%d.%d", &major, &minor);
++			vp(md, "mtd: Linux %d.%d\n", major, minor);
++			if ((major << 8 | minor) > (3 << 8 | 18))
++				md->raw_mode_flag = 1;
++		}
+ 	} else {
+ 		fclose(fp);
+ 		md->raw_mode_flag = 1;
+-		vp(md, "mtd: use new bch layout raw access mode\n");
+ 	}
++	if (md->raw_mode_flag)
++		vp(md, "mtd: use new bch layout raw access mode\n");
++	else
++		vp(md, "mtd: use legacy raw access mode\n");
+ 
+ 	if (plat_config_data->m_u32UseMultiBootArea) {
+