* [PATCH] mtd: spi-nor: controllers: intel-spi: Add support for command line partitions
@ 2020-04-17 15:26 ` Ronald G. Minnich
0 siblings, 0 replies; 12+ messages in thread
From: Ronald G. Minnich @ 2020-04-17 15:26 UTC (permalink / raw)
Cc: Ronald G. Minnich, Tudor Ambarus, Miquel Raynal,
Richard Weinberger, Vignesh Raghavendra, Mika Westerberg,
Boris Brezillon, Jethro Beekman, Greg Kroah-Hartman,
Alexander Sverdlin, Thomas Gleixner, linux-mtd, linux-kernel
On Intel platforms, the usable SPI area is located several
MiB in from the start, to leave room for descriptors and
the Management Engine binary. Further, not all the remaining
space can be used, as the last 16 MiB contains firmware.
To make the SPI usable for mtdblock and other devices,
it is necessary to enable command line partitions so the
middle usable region can be specified.
Add a part_probes array which includes only "cmdelineparts",
and change to mtd_device_parse_register to use this part_probes.
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
---
drivers/mtd/spi-nor/controllers/intel-spi.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/spi-nor/controllers/intel-spi.c b/drivers/mtd/spi-nor/controllers/intel-spi.c
index 61d2a0ad2131..132129e89d07 100644
--- a/drivers/mtd/spi-nor/controllers/intel-spi.c
+++ b/drivers/mtd/spi-nor/controllers/intel-spi.c
@@ -894,6 +894,8 @@ static const struct spi_nor_controller_ops intel_spi_controller_ops = {
.erase = intel_spi_erase,
};
+static const char * const part_probes[] = { "cmdlinepart", NULL };
+
struct intel_spi *intel_spi_probe(struct device *dev,
struct resource *mem, const struct intel_spi_boardinfo *info)
{
@@ -941,7 +943,8 @@ struct intel_spi *intel_spi_probe(struct device *dev,
if (!ispi->writeable || !writeable)
ispi->nor.mtd.flags &= ~MTD_WRITEABLE;
- ret = mtd_device_register(&ispi->nor.mtd, &part, 1);
+ ret = mtd_device_parse_register(&ispi->nor.mtd, part_probes,
+ NULL, &part, 1);
if (ret)
return ERR_PTR(ret);
--
2.26.1.301.g55bc3eb7cb9-goog
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH] mtd: spi-nor: controllers: intel-spi: Add support for command line partitions
@ 2020-04-17 15:26 ` Ronald G. Minnich
0 siblings, 0 replies; 12+ messages in thread
From: Ronald G. Minnich @ 2020-04-17 15:26 UTC (permalink / raw)
Cc: Vignesh Raghavendra, Tudor Ambarus, Richard Weinberger,
Ronald G. Minnich, Jethro Beekman, linux-kernel,
Greg Kroah-Hartman, linux-mtd, Miquel Raynal, Alexander Sverdlin,
Thomas Gleixner, Mika Westerberg, Boris Brezillon
On Intel platforms, the usable SPI area is located several
MiB in from the start, to leave room for descriptors and
the Management Engine binary. Further, not all the remaining
space can be used, as the last 16 MiB contains firmware.
To make the SPI usable for mtdblock and other devices,
it is necessary to enable command line partitions so the
middle usable region can be specified.
Add a part_probes array which includes only "cmdelineparts",
and change to mtd_device_parse_register to use this part_probes.
Signed-off-by: Ronald G. Minnich <rminnich@google.com>
---
drivers/mtd/spi-nor/controllers/intel-spi.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/spi-nor/controllers/intel-spi.c b/drivers/mtd/spi-nor/controllers/intel-spi.c
index 61d2a0ad2131..132129e89d07 100644
--- a/drivers/mtd/spi-nor/controllers/intel-spi.c
+++ b/drivers/mtd/spi-nor/controllers/intel-spi.c
@@ -894,6 +894,8 @@ static const struct spi_nor_controller_ops intel_spi_controller_ops = {
.erase = intel_spi_erase,
};
+static const char * const part_probes[] = { "cmdlinepart", NULL };
+
struct intel_spi *intel_spi_probe(struct device *dev,
struct resource *mem, const struct intel_spi_boardinfo *info)
{
@@ -941,7 +943,8 @@ struct intel_spi *intel_spi_probe(struct device *dev,
if (!ispi->writeable || !writeable)
ispi->nor.mtd.flags &= ~MTD_WRITEABLE;
- ret = mtd_device_register(&ispi->nor.mtd, &part, 1);
+ ret = mtd_device_parse_register(&ispi->nor.mtd, part_probes,
+ NULL, &part, 1);
if (ret)
return ERR_PTR(ret);
--
2.26.1.301.g55bc3eb7cb9-goog
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH] mtd: spi-nor: controllers: intel-spi: Add support for command line partitions
2020-04-17 15:26 ` Ronald G. Minnich
@ 2020-04-17 16:07 ` Mika Westerberg
-1 siblings, 0 replies; 12+ messages in thread
From: Mika Westerberg @ 2020-04-17 16:07 UTC (permalink / raw)
To: Ronald G. Minnich
Cc: Ronald G. Minnich, Tudor Ambarus, Miquel Raynal,
Richard Weinberger, Vignesh Raghavendra, Boris Brezillon,
Jethro Beekman, Greg Kroah-Hartman, Alexander Sverdlin,
Thomas Gleixner, linux-mtd, linux-kernel
On Fri, Apr 17, 2020 at 08:26:11AM -0700, Ronald G. Minnich wrote:
> On Intel platforms, the usable SPI area is located several
> MiB in from the start, to leave room for descriptors and
> the Management Engine binary. Further, not all the remaining
> space can be used, as the last 16 MiB contains firmware.
>
> To make the SPI usable for mtdblock and other devices,
> it is necessary to enable command line partitions so the
> middle usable region can be specified.
>
> Add a part_probes array which includes only "cmdelineparts",
> and change to mtd_device_parse_register to use this part_probes.
>
> Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] mtd: spi-nor: controllers: intel-spi: Add support for command line partitions
@ 2020-04-17 16:07 ` Mika Westerberg
0 siblings, 0 replies; 12+ messages in thread
From: Mika Westerberg @ 2020-04-17 16:07 UTC (permalink / raw)
To: Ronald G. Minnich
Cc: Vignesh Raghavendra, Tudor Ambarus, Richard Weinberger,
Boris Brezillon, Jethro Beekman, linux-kernel,
Greg Kroah-Hartman, linux-mtd, Miquel Raynal, Alexander Sverdlin,
Ronald G. Minnich, Thomas Gleixner
On Fri, Apr 17, 2020 at 08:26:11AM -0700, Ronald G. Minnich wrote:
> On Intel platforms, the usable SPI area is located several
> MiB in from the start, to leave room for descriptors and
> the Management Engine binary. Further, not all the remaining
> space can be used, as the last 16 MiB contains firmware.
>
> To make the SPI usable for mtdblock and other devices,
> it is necessary to enable command line partitions so the
> middle usable region can be specified.
>
> Add a part_probes array which includes only "cmdelineparts",
> and change to mtd_device_parse_register to use this part_probes.
>
> Signed-off-by: Ronald G. Minnich <rminnich@google.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] mtd: spi-nor: controllers: intel-spi: Add support for command line partitions
2020-04-17 16:07 ` Mika Westerberg
@ 2020-09-25 4:21 ` Vignesh Raghavendra
-1 siblings, 0 replies; 12+ messages in thread
From: Vignesh Raghavendra @ 2020-09-25 4:21 UTC (permalink / raw)
To: Mika Westerberg, Ronald G. Minnich
Cc: Ronald G. Minnich, Tudor Ambarus, Miquel Raynal,
Richard Weinberger, Boris Brezillon, Jethro Beekman,
Greg Kroah-Hartman, Alexander Sverdlin, Thomas Gleixner,
linux-mtd, linux-kernel
On 4/17/20 9:37 PM, Mika Westerberg wrote:
> On Fri, Apr 17, 2020 at 08:26:11AM -0700, Ronald G. Minnich wrote:
>> On Intel platforms, the usable SPI area is located several
>> MiB in from the start, to leave room for descriptors and
>> the Management Engine binary. Further, not all the remaining
>> space can be used, as the last 16 MiB contains firmware.
>>
>> To make the SPI usable for mtdblock and other devices,
>> it is necessary to enable command line partitions so the
>> middle usable region can be specified.
>>
>> Add a part_probes array which includes only "cmdelineparts",
>> and change to mtd_device_parse_register to use this part_probes.
>>
>> Signed-off-by: Ronald G. Minnich <rminnich@google.com>
>
> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
>
scripts/checkpatch.pl --strict complains:
CHECK: Alignment should match open parenthesis
#46: FILE: drivers/mtd/spi-nor/controllers/intel-spi.c:956:
+ ret = mtd_device_parse_register(&ispi->nor.mtd, part_probes,
+ NULL, &part, 1);
WARNING: Missing Signed-off-by: line by nominal patch author '"Ronald G. Minnich" <rminnich@gmail.com>'
Regards
Vignesh
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] mtd: spi-nor: controllers: intel-spi: Add support for command line partitions
@ 2020-09-25 4:21 ` Vignesh Raghavendra
0 siblings, 0 replies; 12+ messages in thread
From: Vignesh Raghavendra @ 2020-09-25 4:21 UTC (permalink / raw)
To: Mika Westerberg, Ronald G. Minnich
Cc: Tudor Ambarus, Richard Weinberger, Boris Brezillon,
Jethro Beekman, linux-kernel, Greg Kroah-Hartman, linux-mtd,
Miquel Raynal, Alexander Sverdlin, Ronald G. Minnich,
Thomas Gleixner
On 4/17/20 9:37 PM, Mika Westerberg wrote:
> On Fri, Apr 17, 2020 at 08:26:11AM -0700, Ronald G. Minnich wrote:
>> On Intel platforms, the usable SPI area is located several
>> MiB in from the start, to leave room for descriptors and
>> the Management Engine binary. Further, not all the remaining
>> space can be used, as the last 16 MiB contains firmware.
>>
>> To make the SPI usable for mtdblock and other devices,
>> it is necessary to enable command line partitions so the
>> middle usable region can be specified.
>>
>> Add a part_probes array which includes only "cmdelineparts",
>> and change to mtd_device_parse_register to use this part_probes.
>>
>> Signed-off-by: Ronald G. Minnich <rminnich@google.com>
>
> Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
>
scripts/checkpatch.pl --strict complains:
CHECK: Alignment should match open parenthesis
#46: FILE: drivers/mtd/spi-nor/controllers/intel-spi.c:956:
+ ret = mtd_device_parse_register(&ispi->nor.mtd, part_probes,
+ NULL, &part, 1);
WARNING: Missing Signed-off-by: line by nominal patch author '"Ronald G. Minnich" <rminnich@gmail.com>'
Regards
Vignesh
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply [flat|nested] 12+ messages in thread
* [PATCH] mtd: parser: cmdline: Support MTD names containing one or more colons
2020-09-25 4:21 ` Vignesh Raghavendra
@ 2020-12-23 21:56 ` Ian Goegebuer
-1 siblings, 0 replies; 12+ messages in thread
From: Ian Goegebuer @ 2020-12-23 21:56 UTC (permalink / raw)
To: Vignesh Raghavendra
Cc: Ronald G . Minnich, Tudor Ambarus, Miquel Raynal,
Richard Weinberger, Mika Westerberg, Boris Brezillon,
Jethro Beekman, Greg Kroah-Hartman, Alexander Sverdlin,
Thomas Gleixner, linux-mtd, linux-kernel, Ian Goegebuer
On Intel platforms, the usable SPI area is located several
MiB in from the start, to leave room for descriptors and
the Management Engine binary. Further, not all the remaining
space can be used, as the last 16 MiB contains firmware.
To make the SPI usable for mtdblock and other devices,
it is necessary to enable command line partitions so the
middle usable region can be specified.
Add a part_probes array which includes only "cmdelineparts",
and change to mtd_device_parse_register to use this part_probes.
Signed-off-by: "Ronald G. Minnich" <rminnich@google.com>
Signed-off-by: Ian Goegebuer <goegebuer@google.com>
---
drivers/mtd/spi-nor/controllers/intel-spi.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/spi-nor/controllers/intel-spi.c b/drivers/mtd/spi-nor/controllers/intel-spi.c
index b54a56a68100..9de38851c411 100644
--- a/drivers/mtd/spi-nor/controllers/intel-spi.c
+++ b/drivers/mtd/spi-nor/controllers/intel-spi.c
@@ -903,6 +903,8 @@ static const struct spi_nor_controller_ops intel_spi_controller_ops = {
.erase = intel_spi_erase,
};
+static const char * const part_probes[] = { "cmdlinepart", NULL };
+
struct intel_spi *intel_spi_probe(struct device *dev,
struct resource *mem, const struct intel_spi_boardinfo *info)
{
@@ -950,7 +952,8 @@ struct intel_spi *intel_spi_probe(struct device *dev,
if (!ispi->writeable || !writeable)
ispi->nor.mtd.flags &= ~MTD_WRITEABLE;
- ret = mtd_device_register(&ispi->nor.mtd, &part, 1);
+ ret = mtd_device_parse_register(&ispi->nor.mtd, part_probes,
+ NULL, &part, 1);
if (ret)
return ERR_PTR(ret);
--
2.29.2.729.g45daf8777d-goog
^ permalink raw reply related [flat|nested] 12+ messages in thread
* [PATCH] mtd: parser: cmdline: Support MTD names containing one or more colons
@ 2020-12-23 21:56 ` Ian Goegebuer
0 siblings, 0 replies; 12+ messages in thread
From: Ian Goegebuer @ 2020-12-23 21:56 UTC (permalink / raw)
To: Vignesh Raghavendra
Cc: Tudor Ambarus, Richard Weinberger, Boris Brezillon,
Jethro Beekman, linux-kernel, Ian Goegebuer, Greg Kroah-Hartman,
linux-mtd, Miquel Raynal, Alexander Sverdlin, Ronald G . Minnich,
Mika Westerberg, Thomas Gleixner
On Intel platforms, the usable SPI area is located several
MiB in from the start, to leave room for descriptors and
the Management Engine binary. Further, not all the remaining
space can be used, as the last 16 MiB contains firmware.
To make the SPI usable for mtdblock and other devices,
it is necessary to enable command line partitions so the
middle usable region can be specified.
Add a part_probes array which includes only "cmdelineparts",
and change to mtd_device_parse_register to use this part_probes.
Signed-off-by: "Ronald G. Minnich" <rminnich@google.com>
Signed-off-by: Ian Goegebuer <goegebuer@google.com>
---
drivers/mtd/spi-nor/controllers/intel-spi.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/mtd/spi-nor/controllers/intel-spi.c b/drivers/mtd/spi-nor/controllers/intel-spi.c
index b54a56a68100..9de38851c411 100644
--- a/drivers/mtd/spi-nor/controllers/intel-spi.c
+++ b/drivers/mtd/spi-nor/controllers/intel-spi.c
@@ -903,6 +903,8 @@ static const struct spi_nor_controller_ops intel_spi_controller_ops = {
.erase = intel_spi_erase,
};
+static const char * const part_probes[] = { "cmdlinepart", NULL };
+
struct intel_spi *intel_spi_probe(struct device *dev,
struct resource *mem, const struct intel_spi_boardinfo *info)
{
@@ -950,7 +952,8 @@ struct intel_spi *intel_spi_probe(struct device *dev,
if (!ispi->writeable || !writeable)
ispi->nor.mtd.flags &= ~MTD_WRITEABLE;
- ret = mtd_device_register(&ispi->nor.mtd, &part, 1);
+ ret = mtd_device_parse_register(&ispi->nor.mtd, part_probes,
+ NULL, &part, 1);
if (ret)
return ERR_PTR(ret);
--
2.29.2.729.g45daf8777d-goog
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply related [flat|nested] 12+ messages in thread
* Re: [PATCH] mtd: parser: cmdline: Support MTD names containing one or more colons
2020-12-23 21:56 ` Ian Goegebuer
@ 2021-01-04 9:08 ` Miquel Raynal
-1 siblings, 0 replies; 12+ messages in thread
From: Miquel Raynal @ 2021-01-04 9:08 UTC (permalink / raw)
To: Ian Goegebuer
Cc: Vignesh Raghavendra, Ronald G . Minnich, Tudor Ambarus,
Richard Weinberger, Mika Westerberg, Boris Brezillon,
Jethro Beekman, Greg Kroah-Hartman, Alexander Sverdlin,
Thomas Gleixner, linux-mtd, linux-kernel
Hello Ian,
Ian Goegebuer <goegebuer@google.com> wrote on Wed, 23 Dec 2020 13:56:30
-0800:
> On Intel platforms, the usable SPI area is located several
> MiB in from the start, to leave room for descriptors and
> the Management Engine binary. Further, not all the remaining
> space can be used, as the last 16 MiB contains firmware.
>
> To make the SPI usable for mtdblock and other devices,
> it is necessary to enable command line partitions so the
> middle usable region can be specified.
>
> Add a part_probes array which includes only "cmdelineparts",
> and change to mtd_device_parse_register to use this part_probes.
The commit title seem to be taken from another patch and does not
match the below change. Or am I missing something?
> Signed-off-by: "Ronald G. Minnich" <rminnich@google.com>
> Signed-off-by: Ian Goegebuer <goegebuer@google.com>
> ---
> drivers/mtd/spi-nor/controllers/intel-spi.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/spi-nor/controllers/intel-spi.c b/drivers/mtd/spi-nor/controllers/intel-spi.c
> index b54a56a68100..9de38851c411 100644
> --- a/drivers/mtd/spi-nor/controllers/intel-spi.c
> +++ b/drivers/mtd/spi-nor/controllers/intel-spi.c
> @@ -903,6 +903,8 @@ static const struct spi_nor_controller_ops intel_spi_controller_ops = {
> .erase = intel_spi_erase,
> };
>
> +static const char * const part_probes[] = { "cmdlinepart", NULL };
> +
> struct intel_spi *intel_spi_probe(struct device *dev,
> struct resource *mem, const struct intel_spi_boardinfo *info)
> {
> @@ -950,7 +952,8 @@ struct intel_spi *intel_spi_probe(struct device *dev,
> if (!ispi->writeable || !writeable)
> ispi->nor.mtd.flags &= ~MTD_WRITEABLE;
>
> - ret = mtd_device_register(&ispi->nor.mtd, &part, 1);
> + ret = mtd_device_parse_register(&ispi->nor.mtd, part_probes,
> + NULL, &part, 1);
> if (ret)
> return ERR_PTR(ret);
>
Thanks,
Miquèl
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] mtd: parser: cmdline: Support MTD names containing one or more colons
@ 2021-01-04 9:08 ` Miquel Raynal
0 siblings, 0 replies; 12+ messages in thread
From: Miquel Raynal @ 2021-01-04 9:08 UTC (permalink / raw)
To: Ian Goegebuer
Cc: Vignesh Raghavendra, Boris Brezillon, Richard Weinberger,
Tudor Ambarus, Jethro Beekman, linux-kernel, Greg Kroah-Hartman,
linux-mtd, Ronald G . Minnich, Alexander Sverdlin,
Thomas Gleixner, Mika Westerberg
Hello Ian,
Ian Goegebuer <goegebuer@google.com> wrote on Wed, 23 Dec 2020 13:56:30
-0800:
> On Intel platforms, the usable SPI area is located several
> MiB in from the start, to leave room for descriptors and
> the Management Engine binary. Further, not all the remaining
> space can be used, as the last 16 MiB contains firmware.
>
> To make the SPI usable for mtdblock and other devices,
> it is necessary to enable command line partitions so the
> middle usable region can be specified.
>
> Add a part_probes array which includes only "cmdelineparts",
> and change to mtd_device_parse_register to use this part_probes.
The commit title seem to be taken from another patch and does not
match the below change. Or am I missing something?
> Signed-off-by: "Ronald G. Minnich" <rminnich@google.com>
> Signed-off-by: Ian Goegebuer <goegebuer@google.com>
> ---
> drivers/mtd/spi-nor/controllers/intel-spi.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/mtd/spi-nor/controllers/intel-spi.c b/drivers/mtd/spi-nor/controllers/intel-spi.c
> index b54a56a68100..9de38851c411 100644
> --- a/drivers/mtd/spi-nor/controllers/intel-spi.c
> +++ b/drivers/mtd/spi-nor/controllers/intel-spi.c
> @@ -903,6 +903,8 @@ static const struct spi_nor_controller_ops intel_spi_controller_ops = {
> .erase = intel_spi_erase,
> };
>
> +static const char * const part_probes[] = { "cmdlinepart", NULL };
> +
> struct intel_spi *intel_spi_probe(struct device *dev,
> struct resource *mem, const struct intel_spi_boardinfo *info)
> {
> @@ -950,7 +952,8 @@ struct intel_spi *intel_spi_probe(struct device *dev,
> if (!ispi->writeable || !writeable)
> ispi->nor.mtd.flags &= ~MTD_WRITEABLE;
>
> - ret = mtd_device_register(&ispi->nor.mtd, &part, 1);
> + ret = mtd_device_parse_register(&ispi->nor.mtd, part_probes,
> + NULL, &part, 1);
> if (ret)
> return ERR_PTR(ret);
>
Thanks,
Miquèl
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] mtd: parser: cmdline: Support MTD names containing one or more colons
2021-01-04 9:08 ` Miquel Raynal
@ 2021-01-04 16:24 ` Ron Minnich
-1 siblings, 0 replies; 12+ messages in thread
From: Ron Minnich @ 2021-01-04 16:24 UTC (permalink / raw)
To: Miquel Raynal
Cc: Ian Goegebuer, Vignesh Raghavendra, Tudor Ambarus,
Richard Weinberger, Mika Westerberg, Boris Brezillon,
Jethro Beekman, Greg Kroah-Hartman, Alexander Sverdlin,
Thomas Gleixner, linux-mtd, lkml - Kernel Mailing List
It is likely we're missing something -- I am not fully checked out on
the Linux patch process and it's Ian's first patch.
Guidance appreciated.
On Mon, Jan 4, 2021 at 1:08 AM Miquel Raynal <miquel.raynal@bootlin.com> wrote:
>
> Hello Ian,
>
> Ian Goegebuer <goegebuer@google.com> wrote on Wed, 23 Dec 2020 13:56:30
> -0800:
>
> > On Intel platforms, the usable SPI area is located several
> > MiB in from the start, to leave room for descriptors and
> > the Management Engine binary. Further, not all the remaining
> > space can be used, as the last 16 MiB contains firmware.
> >
> > To make the SPI usable for mtdblock and other devices,
> > it is necessary to enable command line partitions so the
> > middle usable region can be specified.
> >
> > Add a part_probes array which includes only "cmdelineparts",
> > and change to mtd_device_parse_register to use this part_probes.
>
> The commit title seem to be taken from another patch and does not
> match the below change. Or am I missing something?
>
> > Signed-off-by: "Ronald G. Minnich" <rminnich@google.com>
> > Signed-off-by: Ian Goegebuer <goegebuer@google.com>
> > ---
> > drivers/mtd/spi-nor/controllers/intel-spi.c | 5 ++++-
> > 1 file changed, 4 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/mtd/spi-nor/controllers/intel-spi.c b/drivers/mtd/spi-nor/controllers/intel-spi.c
> > index b54a56a68100..9de38851c411 100644
> > --- a/drivers/mtd/spi-nor/controllers/intel-spi.c
> > +++ b/drivers/mtd/spi-nor/controllers/intel-spi.c
> > @@ -903,6 +903,8 @@ static const struct spi_nor_controller_ops intel_spi_controller_ops = {
> > .erase = intel_spi_erase,
> > };
> >
> > +static const char * const part_probes[] = { "cmdlinepart", NULL };
> > +
> > struct intel_spi *intel_spi_probe(struct device *dev,
> > struct resource *mem, const struct intel_spi_boardinfo *info)
> > {
> > @@ -950,7 +952,8 @@ struct intel_spi *intel_spi_probe(struct device *dev,
> > if (!ispi->writeable || !writeable)
> > ispi->nor.mtd.flags &= ~MTD_WRITEABLE;
> >
> > - ret = mtd_device_register(&ispi->nor.mtd, &part, 1);
> > + ret = mtd_device_parse_register(&ispi->nor.mtd, part_probes,
> > + NULL, &part, 1);
> > if (ret)
> > return ERR_PTR(ret);
> >
>
> Thanks,
> Miquèl
^ permalink raw reply [flat|nested] 12+ messages in thread
* Re: [PATCH] mtd: parser: cmdline: Support MTD names containing one or more colons
@ 2021-01-04 16:24 ` Ron Minnich
0 siblings, 0 replies; 12+ messages in thread
From: Ron Minnich @ 2021-01-04 16:24 UTC (permalink / raw)
To: Miquel Raynal
Cc: Vignesh Raghavendra, Boris Brezillon, Richard Weinberger,
Tudor Ambarus, Jethro Beekman, lkml - Kernel Mailing List,
Ian Goegebuer, Alexander Sverdlin, Greg Kroah-Hartman, linux-mtd,
Thomas Gleixner, Mika Westerberg
It is likely we're missing something -- I am not fully checked out on
the Linux patch process and it's Ian's first patch.
Guidance appreciated.
On Mon, Jan 4, 2021 at 1:08 AM Miquel Raynal <miquel.raynal@bootlin.com> wrote:
>
> Hello Ian,
>
> Ian Goegebuer <goegebuer@google.com> wrote on Wed, 23 Dec 2020 13:56:30
> -0800:
>
> > On Intel platforms, the usable SPI area is located several
> > MiB in from the start, to leave room for descriptors and
> > the Management Engine binary. Further, not all the remaining
> > space can be used, as the last 16 MiB contains firmware.
> >
> > To make the SPI usable for mtdblock and other devices,
> > it is necessary to enable command line partitions so the
> > middle usable region can be specified.
> >
> > Add a part_probes array which includes only "cmdelineparts",
> > and change to mtd_device_parse_register to use this part_probes.
>
> The commit title seem to be taken from another patch and does not
> match the below change. Or am I missing something?
>
> > Signed-off-by: "Ronald G. Minnich" <rminnich@google.com>
> > Signed-off-by: Ian Goegebuer <goegebuer@google.com>
> > ---
> > drivers/mtd/spi-nor/controllers/intel-spi.c | 5 ++++-
> > 1 file changed, 4 insertions(+), 1 deletion(-)
> >
> > diff --git a/drivers/mtd/spi-nor/controllers/intel-spi.c b/drivers/mtd/spi-nor/controllers/intel-spi.c
> > index b54a56a68100..9de38851c411 100644
> > --- a/drivers/mtd/spi-nor/controllers/intel-spi.c
> > +++ b/drivers/mtd/spi-nor/controllers/intel-spi.c
> > @@ -903,6 +903,8 @@ static const struct spi_nor_controller_ops intel_spi_controller_ops = {
> > .erase = intel_spi_erase,
> > };
> >
> > +static const char * const part_probes[] = { "cmdlinepart", NULL };
> > +
> > struct intel_spi *intel_spi_probe(struct device *dev,
> > struct resource *mem, const struct intel_spi_boardinfo *info)
> > {
> > @@ -950,7 +952,8 @@ struct intel_spi *intel_spi_probe(struct device *dev,
> > if (!ispi->writeable || !writeable)
> > ispi->nor.mtd.flags &= ~MTD_WRITEABLE;
> >
> > - ret = mtd_device_register(&ispi->nor.mtd, &part, 1);
> > + ret = mtd_device_parse_register(&ispi->nor.mtd, part_probes,
> > + NULL, &part, 1);
> > if (ret)
> > return ERR_PTR(ret);
> >
>
> Thanks,
> Miquèl
______________________________________________________
Linux MTD discussion mailing list
http://lists.infradead.org/mailman/listinfo/linux-mtd/
^ permalink raw reply [flat|nested] 12+ messages in thread
end of thread, other threads:[~2021-01-04 16:25 UTC | newest]
Thread overview: 12+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-04-17 15:26 [PATCH] mtd: spi-nor: controllers: intel-spi: Add support for command line partitions Ronald G. Minnich
2020-04-17 15:26 ` Ronald G. Minnich
2020-04-17 16:07 ` Mika Westerberg
2020-04-17 16:07 ` Mika Westerberg
2020-09-25 4:21 ` Vignesh Raghavendra
2020-09-25 4:21 ` Vignesh Raghavendra
2020-12-23 21:56 ` [PATCH] mtd: parser: cmdline: Support MTD names containing one or more colons Ian Goegebuer
2020-12-23 21:56 ` Ian Goegebuer
2021-01-04 9:08 ` Miquel Raynal
2021-01-04 9:08 ` Miquel Raynal
2021-01-04 16:24 ` Ron Minnich
2021-01-04 16:24 ` Ron Minnich
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