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>
Tim Harvey
8 years ago
committed by
Felix Fietkau
parent
f8c7e935ef
commit
a4b86b292a
@ -1,76 +0,0 @@ |
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From: Paul B. Henson <henson@acm.org>
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Newer kernel headers renamed mtd mode defines and no longer support
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MEMSETOOBSEL. Allow code to work with both older and newer kernel
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versions.
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Signed-off-by: Paul B. Henson <henson@acm.org>
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---
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http://git.buildroot.net/buildroot/plain/package/kobs-ng/kobs-ng-fix-mtd-defines.patch
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--- a/src/mtd.c
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+++ b/src/mtd.c
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@@ -852,8 +852,11 @@ void mtd_close(struct mtd_data *md)
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mp = &md->part[i];
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if (mp->fd != -1) {
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+/* Newer kernels dropped MEMSETOOBSEL */
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+#ifdef MEMSETOOBSEL
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(void)ioctl(mp->fd, MEMSETOOBSEL,
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&mp->old_oobinfo);
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+#endif
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close(mp->fd);
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}
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@@ -896,6 +899,8 @@ int mtd_set_ecc_mode(struct mtd_data *md
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continue;
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}
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+/* Newer kernels dropped MEMSETOOBSEL */
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+#ifdef MEMSETOOBSEL
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if (r == -ENOTTY) {
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r = ioctl(mp->fd, MEMSETOOBSEL, &mp->old_oobinfo);
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if (r != 0) {
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@@ -904,6 +909,7 @@ int mtd_set_ecc_mode(struct mtd_data *md
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}
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mp->oobinfochanged = 0;
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}
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+#endif
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} else {
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r = ioctl(mp->fd, MTDFILEMODE, (void *)MTD_MODE_RAW);
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if (r != 0 && r != -ENOTTY) {
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@@ -911,6 +917,8 @@ int mtd_set_ecc_mode(struct mtd_data *md
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continue;
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}
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+/* Newer kernels dropped MEMSETOOBSEL */
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+#ifdef MEMSETOOBSEL
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if (r == -ENOTTY) {
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r = ioctl(mp->fd, MEMSETOOBSEL, &none_oobinfo);
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if (r != 0) {
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@@ -920,6 +928,7 @@ int mtd_set_ecc_mode(struct mtd_data *md
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mp->oobinfochanged = 1;
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} else
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mp->oobinfochanged = 2;
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+#endif
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}
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mp->ecc = ecc;
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--- a/src/mtd.h
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+++ b/src/mtd.h
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@@ -31,6 +31,14 @@
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#include "BootControlBlocks.h"
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#include "rom_nand_hamming_code_ecc.h"
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+// Newer kernel headers renamed define
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+#ifndef MTD_MODE_NORMAL
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+#define MTD_MODE_NORMAL MTD_FILE_MODE_NORMAL
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+#endif
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+#ifndef MTD_MODE_RAW
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+#define MTD_MODE_RAW MTD_FILE_MODE_RAW
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+#endif
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+
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//------------------------------------------------------------------------------
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// Re-definitions of true and false, because the standard ones aren't good
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// enough?
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@ -0,0 +1,45 @@ |
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The downstream Freescale vendor kernel has a patch that allows determining
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if raw NAND flash mode is provided via a debugfs file. This is not present
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in upstream kernels, but the raw access support was added in the 3.19
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kernel, so we will check the kernel version if we can't find the file.
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--- a/src/mtd.c
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+++ b/src/mtd.c
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@@ -34,6 +34,7 @@
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/ioctl.h>
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+#include <sys/utsname.h>
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#include "mtd.h"
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#include "rand.h"
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@@ -808,15 +809,27 @@ struct mtd_data *mtd_open(const struct m
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md->cfg = *cfg;
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/* check if use new raw access mode */
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+ /* by looking for debugfs from fsl patch */
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+ md->raw_mode_flag = 0;
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fp = fopen("/sys/kernel/debug/gpmi-nand/raw_mode", "r");
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if (!fp) {
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- md->raw_mode_flag = 0;
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- vp(md, "mtd: use legacy raw access mode\n");
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+ /* fallback to kernel version: raw access added in 3.19 */
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+ struct utsname uts;
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+ if (!uname(&uts)) {
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+ int major = 0, minor = 0;
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+ sscanf(uts.release, "%d.%d", &major, &minor);
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+ vp(md, "mtd: Linux %d.%d\n", major, minor);
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+ if ((major << 8 | minor) > (3 << 8 | 18))
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+ md->raw_mode_flag = 1;
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+ }
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} else {
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fclose(fp);
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md->raw_mode_flag = 1;
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- vp(md, "mtd: use new bch layout raw access mode\n");
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}
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+ if (md->raw_mode_flag)
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+ vp(md, "mtd: use new bch layout raw access mode\n");
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+ else
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+ vp(md, "mtd: use legacy raw access mode\n");
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if (plat_config_data->m_u32UseMultiBootArea) {
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@ -0,0 +1,27 @@ |
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The Freescale downstream vendor kernel has a patch that exports the bch
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flash geometry via a debugfs file. This is not available in mainline linux
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kernels so the fallback method calculates the geometry based on known info
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from the mtd partition. A bug exists in this funcion where it fails to
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assume that block0 ECC is the same as the other blocks by default.
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--- a/src/mtd.c
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+++ b/src/mtd.c
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@@ -610,7 +610,7 @@ static int cal_nfc_geometry(struct mtd_d
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/* The two are fixed, please change them when the driver changes. */
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geo->metadata_size_in_bytes = 10;
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geo->gf_len = 13;
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- geo->ecc_chunkn_size_in_bytes = 512;
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+ geo->ecc_chunkn_size_in_bytes = geo->ecc_chunk0_size_in_bytes = 512;
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if (mtd->oobsize > geo->ecc_chunkn_size_in_bytes) {
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geo->gf_len = 14;
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@@ -700,8 +700,9 @@ int parse_nfc_geometry(struct mtd_data *
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unsigned int value;
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if (!plat_config_data->m_u32UseNfcGeo) {
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+ /* fsl kernel patch provides bch_geometry via debugfs */
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if (!(node = fopen(dbg_geometry_node_path, "r"))) {
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- fprintf(stderr, "Cannot open BCH geometry node: \"%s\"",
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+ fprintf(stderr, "Cannot open BCH geometry node: \"%s\"\n",
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dbg_geometry_node_path);
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return cal_nfc_geometry(md);
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}
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@ -1,10 +0,0 @@ |
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--- a/src/plat_boot_config.c
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+++ b/src/plat_boot_config.c
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@@ -18,6 +18,7 @@
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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+#define _GNU_SOURCE
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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Loading…
Reference in new issue