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kernel: backport MEMREAD ioctl

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MEMREAD is a new ioctl for MTD character devices that was first included
in Linux 6.1.  It allows userspace applications to use the Linux
kernel's OOB autoplacement mechanism while reading data from NAND
devices.  The Yafut tool needs this ioctl to do its job.

Signed-off-by: Michał Kępień <openwrt@kempniu.pl>
This commit is contained in:
Michał Kępień
2023-03-31 12:40:31 +02:00
committed by Christian Marangi
parent 3d110053f8
commit fa4dc86e98
15 changed files with 908 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
target/linux/mediatek/patches-5.15/120-08-v5.18-mtd-spinand-Delay-a-little-bit-the-dirmap-creation.patch
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@@ -18,7 +18,7 @@ Link: https://lore.kernel.org/linux-mtd/20220127091808.1043392-8-miquel.raynal@b
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -1211,14 +1211,6 @@ static int spinand_init(struct spinand_d
@@ -1221,14 +1221,6 @@ static int spinand_init(struct spinand_d
if (ret)
goto err_free_bufs;
@@ -33,7 +33,7 @@ Link: https://lore.kernel.org/linux-mtd/20220127091808.1043392-8-miquel.raynal@b
ret = nanddev_init(nand, &spinand_ops, THIS_MODULE);
if (ret)
goto err_manuf_cleanup;
@@ -1253,6 +1245,14 @@ static int spinand_init(struct spinand_d
@@ -1263,6 +1255,14 @@ static int spinand_init(struct spinand_d
mtd->ecc_strength = nanddev_get_ecc_conf(nand)->strength;
mtd->ecc_step_size = nanddev_get_ecc_conf(nand)->step_size;

2
target/linux/mediatek/patches-5.15/120-09-v5.18-mtd-spinand-Create-direct-mapping-descriptors-for-EC.patch
View File

@@ -53,7 +53,7 @@ Link: https://lore.kernel.org/linux-mtd/20220127091808.1043392-9-miquel.raynal@b
while (nbytes) {
ret = spi_mem_dirmap_write(wdesc, column, nbytes, buf);
@@ -865,6 +871,31 @@ static int spinand_create_dirmap(struct
@@ -875,6 +881,31 @@ static int spinand_create_dirmap(struct
spinand->dirmaps[plane].rdesc = desc;

4
target/linux/mediatek/patches-5.15/121-hack-spi-nand-1b-bbm.patch
View File

@@ -1,6 +1,6 @@
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -714,7 +714,7 @@ static int spinand_mtd_write(struct mtd_
@@ -724,7 +724,7 @@ static int spinand_mtd_write(struct mtd_
static bool spinand_isbad(struct nand_device *nand, const struct nand_pos *pos)
{
struct spinand_device *spinand = nand_to_spinand(nand);
@@ -9,7 +9,7 @@
struct nand_page_io_req req = {
.pos = *pos,
.ooblen = sizeof(marker),
@@ -725,7 +725,7 @@ static bool spinand_isbad(struct nand_de
@@ -735,7 +735,7 @@ static bool spinand_isbad(struct nand_de
spinand_select_target(spinand, pos->target);
spinand_read_page(spinand, &req);

6
target/linux/mediatek/patches-5.15/330-snand-mtk-bmt-support.patch
View File

@@ -8,7 +8,7 @@
static int spinand_read_reg_op(struct spinand_device *spinand, u8 reg, u8 *val)
{
@@ -1333,6 +1334,7 @@ static int spinand_probe(struct spi_mem
@@ -1343,6 +1344,7 @@ static int spinand_probe(struct spi_mem
if (ret)
return ret;
@@ -16,7 +16,7 @@
ret = mtd_device_register(mtd, NULL, 0);
if (ret)
goto err_spinand_cleanup;
@@ -1340,6 +1342,7 @@ static int spinand_probe(struct spi_mem
@@ -1350,6 +1352,7 @@ static int spinand_probe(struct spi_mem
return 0;
err_spinand_cleanup:
@@ -24,7 +24,7 @@
spinand_cleanup(spinand);
return ret;
@@ -1358,6 +1361,7 @@ static int spinand_remove(struct spi_mem
@@ -1368,6 +1371,7 @@ static int spinand_remove(struct spi_mem
if (ret)
return ret;

2
target/linux/mediatek/patches-5.15/340-mtd-spinand-Add-support-for-the-Fidelix-FM35X1GA.patch
View File

@@ -23,7 +23,7 @@ Signed-off-by: Davide Fioravanti <pantanastyle@gmail.com>
obj-$(CONFIG_MTD_SPI_NAND) += spinand.o
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -929,6 +929,7 @@ static const struct nand_ops spinand_ops
@@ -939,6 +939,7 @@ static const struct nand_ops spinand_ops
static const struct spinand_manufacturer *spinand_manufacturers[] = {
&esmt_c8_spinand_manufacturer,

4
target/linux/mediatek/patches-5.15/435-drivers-mtd-spinand-Add-calibration-support-for-spin.patch
View File

@@ -11,7 +11,7 @@ Signed-off-by: SkyLake.Huang <skylake.huang@mediatek.com>
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -967,6 +967,56 @@ static int spinand_manufacturer_match(st
@@ -977,6 +977,56 @@ static int spinand_manufacturer_match(st
return -ENOTSUPP;
}
@@ -68,7 +68,7 @@ Signed-off-by: SkyLake.Huang <skylake.huang@mediatek.com>
static int spinand_id_detect(struct spinand_device *spinand)
{
u8 *id = spinand->id.data;
@@ -1217,6 +1267,10 @@ static int spinand_init(struct spinand_d
@@ -1227,6 +1277,10 @@ static int spinand_init(struct spinand_d
if (!spinand->scratchbuf)
return -ENOMEM;

2
target/linux/mediatek/patches-5.15/436-drivers-mtd-spi-nor-Add-calibration-support-for-spi-.patch
View File

@@ -12,7 +12,7 @@ Signed-off-by: SkyLake.Huang <skylake.huang@mediatek.com>
--- a/drivers/mtd/nand/spi/core.c
+++ b/drivers/mtd/nand/spi/core.c
@@ -1008,7 +1008,10 @@ int spinand_cal_read(void *priv, u32 *ad
@@ -1018,7 +1018,10 @@ int spinand_cal_read(void *priv, u32 *ad
if (ret)
return ret;