boot: kobs-ng: update kobs-ng for newer kernels

This allows kobs-ng to flash the SPL successfully on the 4.4 kernel used by
the Gateworks IMX boards supporting NAND. The previous version of kobs-ng
worked with the 3.14 kernel but will brick a board making its SPL unbootable
for the 4.4 kernel.

See http://trac.gateworks.com/wiki/ventana/bootloader#nandspl for instructions
on updating the SPL from Linux.

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

package/boot/kobs-ng/Makefile

@@ -8,12 +8,13 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=kobs-ng
-PKG_VERSION:=3.0.35-4.0.0
-PKG_RELEASE:=2
+PKG_VERSION:=5.4
+PKG_RELEASE:=1
 
-PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
-PKG_SOURCE_URL:=http://repository.timesys.com/buildsources/k/kobs-ng/kobs-ng-$(PKG_VERSION)/
-PKG_MD5SUM:=26104c577f59a6b81782a5bd16aadd82
+PKG_SOURCE:=imx-kobs-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=http://www.freescale.com/lgfiles/NMG/MAD/YOCTO/
+PKG_MD5SUM:=77467d834f858c2ec216841583e5f437
+PKG_BUILD_DIR:=$(BUILD_DIR)/imx-kobs-$(PKG_VERSION)
 
 PKG_LICENSE:=GPLv2
 PKG_LICENSE_FILES:=COPYING

package/boot/kobs-ng/patches/001-compile.patch

@@ -10,8 +10,11 @@
  #include <errno.h>
 --- a/src/mtd.h
 +++ b/src/mtd.h
-@@ -27,6 +27,7 @@
+@@ -25,8 +25,10 @@
+ #ifndef MTD_H
+ #define MTD_H
  
++#define _GNU_SOURCE
  #include <mtd/mtd-user.h>
  #include <endian.h>
 +#include <fcntl.h>

package/boot/kobs-ng/patches/001-fix-mtd-defines.patch

@@ -1,76 +0,0 @@
-From: Paul B. Henson <henson@acm.org>
-
-Newer kernel headers renamed mtd mode defines and no longer support
-MEMSETOOBSEL. Allow code to work with both older and newer kernel
-versions.
-
-Signed-off-by: Paul B. Henson <henson@acm.org>
----
-
-http://git.buildroot.net/buildroot/plain/package/kobs-ng/kobs-ng-fix-mtd-defines.patch
-
---- a/src/mtd.c
-+++ b/src/mtd.c
-@@ -852,8 +852,11 @@ void mtd_close(struct mtd_data *md)
- 		mp = &md->part[i];
- 
- 		if (mp->fd != -1) {
-+/* Newer kernels dropped MEMSETOOBSEL */
-+#ifdef MEMSETOOBSEL
- 			(void)ioctl(mp->fd, MEMSETOOBSEL,
- 					&mp->old_oobinfo);
-+#endif
- 			close(mp->fd);
- 		}
- 
-@@ -896,6 +899,8 @@ int mtd_set_ecc_mode(struct mtd_data *md
- 				continue;
- 			}
- 
-+/* Newer kernels dropped MEMSETOOBSEL */
-+#ifdef MEMSETOOBSEL
- 			if (r == -ENOTTY) {
- 				r = ioctl(mp->fd, MEMSETOOBSEL, &mp->old_oobinfo);
- 				if (r != 0) {
-@@ -904,6 +909,7 @@ int mtd_set_ecc_mode(struct mtd_data *md
- 				}
- 				mp->oobinfochanged = 0;
- 			}
-+#endif
- 		} else {
- 			r = ioctl(mp->fd, MTDFILEMODE, (void *)MTD_MODE_RAW);
- 			if (r != 0 && r != -ENOTTY) {
-@@ -911,6 +917,8 @@ int mtd_set_ecc_mode(struct mtd_data *md
- 				continue;
- 			}
- 
-+/* Newer kernels dropped MEMSETOOBSEL */
-+#ifdef MEMSETOOBSEL
- 			if (r == -ENOTTY) {
- 				r = ioctl(mp->fd, MEMSETOOBSEL, &none_oobinfo);
- 				if (r != 0) {
-@@ -920,6 +928,7 @@ int mtd_set_ecc_mode(struct mtd_data *md
- 				mp->oobinfochanged = 1;
- 			} else
- 				mp->oobinfochanged = 2;
-+#endif
- 		}
- 
- 		mp->ecc = ecc;
---- a/src/mtd.h
-+++ b/src/mtd.h
-@@ -31,6 +31,14 @@
- #include "BootControlBlocks.h"
- #include "rom_nand_hamming_code_ecc.h"
- 
-+// Newer kernel headers renamed define
-+#ifndef MTD_MODE_NORMAL
-+#define MTD_MODE_NORMAL MTD_FILE_MODE_NORMAL
-+#endif
-+#ifndef MTD_MODE_RAW
-+#define MTD_MODE_RAW MTD_FILE_MODE_RAW
-+#endif
-+
- //------------------------------------------------------------------------------
- // Re-definitions of true and false, because the standard ones aren't good
- // enough?

package/boot/kobs-ng/patches/002-add-init-size-param.patch

@@ -1,3 +1,6 @@
+Add --chip_0_size param to override the size of the mtd partition which is
+required if the SPL does not occupy the entire partition. For Gateworks
+Ventana boards the 'uboot' partition contains both the SPL and uboot.
 --- a/src/main.c
 +++ b/src/main.c
 @@ -94,6 +94,7 @@ void usage(void)
@@ -10,7 +13,7 @@
  	"    --data_hold_time=<value> ............. NCB field (default 60)\n"
 --- a/src/mtd.c
 +++ b/src/mtd.c
-@@ -716,6 +716,11 @@ struct mtd_data *mtd_open(const struct m
+@@ -876,6 +876,11 @@ struct mtd_data *mtd_open(const struct m
  			goto out;
  		}
  
@@ -20,9 +23,9 @@
 +		}
 +
  		/* verify it's a nand */
- 		if (miu->type != MTD_NANDFLASH) {
- 			fprintf(stderr, "mtd: device %s not NAND\n", mp->name);
-@@ -2914,7 +2919,7 @@ static const struct {
+ 		if (miu->type != MTD_NANDFLASH
+ 			&& miu->type != MTD_MLCNANDFLASH) {
+@@ -3385,7 +3390,7 @@ static const struct {
  } mtd_int_args[] = {
  	ARG_IGNORE(chip_count),
  	ARG_IGNORE(chip_0_offset),
@@ -31,7 +34,7 @@
  	ARG_IGNORE(chip_1_offset),
  	ARG_IGNORE(chip_1_size),
  	ARG(search_exponent),
-@@ -3107,7 +3112,7 @@ void mtd_cfg_dump(struct mtd_config *cfg
+@@ -3578,7 +3583,7 @@ void mtd_cfg_dump(struct mtd_config *cfg
  //	Pd(chip_count);
  	Ps(chip_0_device_path);
  //	Pd(chip_0_offset);

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) {
+ 

package/boot/kobs-ng/patches/004-fix-cal_nfc_geometry.patch

@@ -0,0 +1,27 @@
+The Freescale downstream vendor kernel has a patch that exports the bch
+flash geometry via a debugfs file. This is not available in mainline linux
+kernels so the fallback method calculates the geometry based on known info
+from the mtd partition. A bug exists in this funcion where it fails to
+assume that block0 ECC is the same as the other blocks by default.
+--- a/src/mtd.c
++++ b/src/mtd.c
+@@ -610,7 +610,7 @@ static int cal_nfc_geometry(struct mtd_d
+ 	/* The two are fixed, please change them when the driver changes. */
+ 	geo->metadata_size_in_bytes = 10;
+ 	geo->gf_len = 13;
+-	geo->ecc_chunkn_size_in_bytes = 512;
++	geo->ecc_chunkn_size_in_bytes = geo->ecc_chunk0_size_in_bytes = 512;
+ 
+ 	if (mtd->oobsize > geo->ecc_chunkn_size_in_bytes) {
+ 		geo->gf_len = 14;
+@@ -700,8 +700,9 @@ int parse_nfc_geometry(struct mtd_data *
+ 	unsigned int       value;
+ 
+ 	if (!plat_config_data->m_u32UseNfcGeo) {
++		/* fsl kernel patch provides bch_geometry via debugfs */
+ 		if (!(node = fopen(dbg_geometry_node_path, "r"))) {
+-			fprintf(stderr, "Cannot open BCH geometry node: \"%s\"",
++			fprintf(stderr, "Cannot open BCH geometry node: \"%s\"\n",
+ 				dbg_geometry_node_path);
+ 			return cal_nfc_geometry(md);
+ 		}

package/boot/kobs-ng/patches/004-gnu_source.patch

@@ -1,10 +0,0 @@
---- a/src/plat_boot_config.c
-+++ b/src/plat_boot_config.c
-@@ -18,6 +18,7 @@
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
- */
- 
-+#define _GNU_SOURCE
- #include <stdio.h>
- #include <stdlib.h>
- #include <string.h>