diff options
Diffstat (limited to 'target/linux/ramips/patches-3.18/0075-mtk_nand_alloc_buffer.patch')
| -rw-r--r-- | target/linux/ramips/patches-3.18/0075-mtk_nand_alloc_buffer.patch | 179 |
1 files changed, 0 insertions, 179 deletions
diff --git a/target/linux/ramips/patches-3.18/0075-mtk_nand_alloc_buffer.patch b/target/linux/ramips/patches-3.18/0075-mtk_nand_alloc_buffer.patch deleted file mode 100644 index ac20198ace..0000000000 --- a/target/linux/ramips/patches-3.18/0075-mtk_nand_alloc_buffer.patch +++ /dev/null @@ -1,179 +0,0 @@ -From patchwork Fri Nov 13 07:55:08 2015 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -Subject: [OpenWrt-Devel,RFC] A patch for mt7621 nand controler. Revision 2. -From: Kirill Berezin <fyiwdt@gmail.com> -X-Patchwork-Id: 544092 -Message-Id: <CAOFwh=DZieEa4ZA0ex6G3OR2OgEeP6Fh+SSw=Zg-L0wWm1QRTA@mail.gmail.com> -To: openwrt-devel@lists.openwrt.org -Date: Fri, 13 Nov 2015 10:55:08 +0300 - -Hello, - -It turned out that mtk_nand driver uses some sophisticated accounting and a -general nand code must be patched. - -This patch adds required read and erase calls to a general nand code. I -used a code for re6500 released by Linksys as a reference. - -All required operations (erase, write and read) are usable. However I found -that jffs2 filesystem can be created only on top of a ubi volume. I tried -to create jffs2 directly on mtd device but pages with clean markers are -became uncorrectable. - -This patch also includes changes that I sent earlier. - -Best regards, -Kirill. - -Signed-off-by: Kirill Berezin (fyiwdt@gmail.com) - -diff -urNb a/drivers/mtd/nand/mtk_nand.c b/drivers/mtd/nand/mtk_nand.c ---- a/drivers/mtd/nand/mtk_nand.c 2015-11-06 16:44:31.000000000 +0400 -+++ b/drivers/mtd/nand/mtk_nand.c 2015-11-12 10:06:20.080430855 +0400 -@@ -110,6 +110,10 @@ - int manu_id; - int dev_id; - -+/* this constant was taken from linux/nand/nand.h v 3.14 -+ * in later versions it seems it was removed in order to save a bit of space -+ */ -+#define NAND_MAX_OOBSIZE 774 - static u8 local_oob_buf[NAND_MAX_OOBSIZE]; - - static u8 nand_badblock_offset = 0; -@@ -348,7 +352,7 @@ - if (0xF == u4ErrNum) { - mtd->ecc_stats.failed++; - bRet = false; -- //printk(KERN_ERR"UnCorrectable at PageAddr=%d\n", u4PageAddr); -+ printk(KERN_ERR"mtk_nand: UnCorrectable at PageAddr=%d\n", u4PageAddr); - } else { - for (i = 0; i < ((u4ErrNum + 1) >> 1); ++i) { - au4ErrBitLoc[i] = DRV_Reg32(ECC_DECEL0_REG32 + i); -@@ -1422,7 +1426,7 @@ - { - struct nand_chip *chip = (struct nand_chip *)mtd->priv; - -- chip->erase_cmd(mtd, page); -+ chip->erase(mtd, page); - - return chip->waitfunc(mtd, chip); - } -@@ -2094,8 +2098,8 @@ - nand_chip->write_page = mtk_nand_write_page; - nand_chip->ecc.write_oob = mtk_nand_write_oob; - nand_chip->block_markbad = mtk_nand_block_markbad; // need to add nand_get_device()/nand_release_device(). -- // nand_chip->erase = mtk_nand_erase; -- // nand_chip->read_page = mtk_nand_read_page; -+ nand_chip->erase_mtk = mtk_nand_erase; -+ nand_chip->read_page = mtk_nand_read_page; - nand_chip->ecc.read_oob = mtk_nand_read_oob; - nand_chip->block_bad = mtk_nand_block_bad; - -@@ -2175,6 +2179,21 @@ - nand_chip->pagemask = (nand_chip->chipsize >> nand_chip->page_shift) - 1; - nand_chip->phys_erase_shift = ffs(mtd->erasesize) - 1; - nand_chip->chip_shift = ffs(nand_chip->chipsize) - 1;//0x1C;//ffs(nand_chip->chipsize) - 1; -+ -+ /* allocate buffers or call select_chip here or a bit earlier*/ -+ { -+ struct nand_buffers *nbuf = kzalloc(sizeof(*nbuf) + mtd->writesize + mtd->oobsize * 3, GFP_KERNEL); -+ if (!nbuf) { -+ return -ENOMEM; -+ } -+ nbuf->ecccalc = (uint8_t *)(nbuf + 1); -+ nbuf->ecccode = nbuf->ecccalc + mtd->oobsize; -+ nbuf->databuf = nbuf->ecccode + mtd->oobsize; -+ -+ nand_chip->buffers = nbuf; -+ nand_chip->options |= NAND_OWN_BUFFERS; -+ } -+ - nand_chip->oob_poi = nand_chip->buffers->databuf + mtd->writesize; - nand_chip->badblockpos = 0; - -@@ -2251,6 +2270,9 @@ - MSG(INIT, "[NFI] mtk_nand_probe fail, err = %d!\n", err); - nand_release(mtd); - platform_set_drvdata(pdev, NULL); -+ if ( NULL != nand_chip->buffers) { -+ kfree(nand_chip->buffers); -+ } - kfree(host); - nand_disable_clock(); - return err; -@@ -2261,8 +2283,12 @@ - { - struct mtk_nand_host *host = platform_get_drvdata(pdev); - struct mtd_info *mtd = &host->mtd; -+ struct nand_chip *nand_chip = &host->nand_chip; - - nand_release(mtd); -+ if ( NULL != nand_chip->buffers) { -+ kfree(nand_chip->buffers); -+ } - kfree(host); - nand_disable_clock(); - -diff -urNb a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c ---- a/drivers/mtd/nand/nand_base.c 2015-11-06 16:44:31.000000000 +0400 -+++ b/drivers/mtd/nand/nand_base.c 2015-11-09 10:24:52.931720862 +0400 -@@ -1575,6 +1575,9 @@ - __func__, buf); - - read_retry: -+#ifdef CONFIG_MTK_MTD_NAND -+ ret = chip->read_page(mtd, chip, bufpoi, page); -+#else - chip->cmdfunc(mtd, NAND_CMD_READ0, 0x00, page); - - /* -@@ -1593,6 +1596,7 @@ - else - ret = chip->ecc.read_page(mtd, chip, bufpoi, - oob_required, page); -+#endif /* CONFIG_MTK_MTD_NAND */ - if (ret < 0) { - if (use_bufpoi) - /* Invalidate page cache */ -@@ -2770,8 +2774,11 @@ - if (page <= chip->pagebuf && chip->pagebuf < - (page + pages_per_block)) - chip->pagebuf = -1; -- -+#ifdef CONFIG_MTK_MTD_NAND -+ status = chip->erase_mtk(mtd, page & chip->pagemask); -+#else - status = chip->erase(mtd, page & chip->pagemask); -+#endif /* CONFIG_MTK_MTD_NAND */ - - /* - * See if operation failed and additional status checks are -diff -urNb a/drivers/mtd/nand/nand_device_list.h b/drivers/mtd/nand/nand_device_list.h ---- a/drivers/mtd/nand/nand_device_list.h 2015-11-06 16:44:31.000000000 +0400 -+++ b/drivers/mtd/nand/nand_device_list.h 2015-11-06 11:13:26.000000000 +0400 -@@ -43,6 +43,8 @@ - {0xADBC, 0x905554, 5, 16, 512, 128, 2048, 64, 0x10801011, "H9DA4GH4JJAMC", 0}, - {0x01F1, 0x801D01, 4, 8, 128, 128, 2048, 64, 0x30C77fff, "S34ML01G100TF", 0}, - {0x92F1, 0x8095FF, 4, 8, 128, 128, 2048, 64, 0x30C77fff, "F59L1G81A", 0}, -+ {0xC8DA, 0x909544, 5, 8, 256, 128, 2048, 64, 0x30C77fff, "F59L2G81A", 0}, -+ {0xC8DC, 0x909554, 5, 8, 512, 128, 2048, 64, 0x30C77fff, "F59L4G81A", 0}, - {0xECD3, 0x519558, 5, 8, 1024, 128, 2048, 64, 0x44333, "K9K8G8000", 0}, - {0xC2F1, 0x801DC2, 4, 8, 128, 128, 2048, 64, 0x30C77fff, "MX30LF1G08AA", 0}, - {0x98D3, 0x902676, 5, 8, 1024, 256, 4096, 224, 0x00C25332, "TC58NVG3S0F", 0}, -diff -urNb a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h ---- a/include/linux/mtd/nand.h 2015-11-06 16:44:30.000000000 +0400 -+++ b/include/linux/mtd/nand.h 2015-11-09 10:18:55.704701886 +0400 -@@ -653,6 +653,10 @@ - int (*write_page)(struct mtd_info *mtd, struct nand_chip *chip, - uint32_t offset, int data_len, const uint8_t *buf, - int oob_required, int page, int cached, int raw); -+#ifdef CONFIG_MTK_MTD_NAND -+ int (*read_page)(struct mtd_info *mtd, struct nand_chip *chip, u8 *buf, int page); -+ int (*erase_mtk)(struct mtd_info *mtd, int page); -+#endif /* CONFIG_MTK_MTD_NAND */ - int (*onfi_set_features)(struct mtd_info *mtd, struct nand_chip *chip, - int feature_addr, uint8_t *subfeature_para); - int (*onfi_get_features)(struct mtd_info *mtd, struct nand_chip *chip, |