[PATCH 0/2] ARM: cfa10036: Store the barebox environment on the MMC

[PATCH 0/2] ARM: cfa10036: Store the barebox environment on the MMC

[Maxime Ripard]

Hi,

The cfa-10036 comes only with a SD slot, so there was previously no way to
store in a persistent way the environment we could have modified other than
by modifying the code source itself.

These two patches register a new partition on the SD card to store that
environment, and update the default environment to reflect these changes.

Thanks,
Maxime

Maxime Ripard (2):
  cfa-10036: Use the second MMC partition to store the environment
  cfa10036: Update the environment

 arch/arm/boards/crystalfontz-cfa10036/cfa10036.c   |   44 +++++++++++++++++++-
 .../boards/crystalfontz-cfa10036/env/boot/mmc-ext3 |    6 +--
 .../crystalfontz-cfa10036/env/init/automount       |    4 +-
 3 files changed, 48 insertions(+), 6 deletions(-)

-- 
1.7.10.4


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[PATCH 1/2] cfa-10036: Use the second MMC partition to store the environment

[Maxime Ripard]

Since the only storage medium on the cfa-10036 is the MMC card, we need
to have a registered environment partition on it if we want to be able
to modify at runtime.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/boards/crystalfontz-cfa10036/cfa10036.c |   44 +++++++++++++++++++++-
 1 file changed, 43 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
index b59dbab..1821b10 100644
--- a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
+++ b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
@@ -97,9 +97,46 @@ static int cfa10036_mem_init(void)
 }
 mem_initcall(cfa10036_mem_init);
 
+/**
+ * Try to register an environment storage on the attached MCI card
+ * @return 0 on success
+ *
+ * We rely on the existence of a usable SD card, already attached to
+ * our system, to get something like a persistent memory for our environment.
+ * If this SD card is also the boot media, we can use the second partition
+ * for our environment purpose (if present!).
+ */
+static int register_persistant_environment(void)
+{
+	struct cdev *cdev;
+
+	/*
+	 * The CFA-10036 only has one MCI card socket.
+	 * So, we expect its name as "disk0".
+	 */
+	cdev = cdev_by_name("disk0");
+	if (cdev == NULL) {
+		pr_err("No SD card found\n");
+		return -ENODEV;
+	}
+
+	/* MCI card is present, also a useable partition on it? */
+	cdev = cdev_by_name("disk0.1");
+	if (cdev == NULL) {
+		pr_err("No second partition available\n");
+		pr_info("Please create at least a second partition with"
+			" 256 kiB...512 kiB in size (your choice)\n");
+		return -ENODEV;
+	}
+
+	/* use the full partition as our persistent environment storage */
+	return devfs_add_partition("disk0.1", 0, cdev->size,
+						DEVFS_PARTITION_FIXED, "env0");
+}
+
 static int cfa10036_devices_init(void)
 {
-	int i;
+	int i, ret;
 
 	/* initizalize muxing */
 	for (i = 0; i < ARRAY_SIZE(cfa10036_pads); i++)
@@ -124,6 +161,11 @@ static int cfa10036_devices_init(void)
 
 	cfa10036_detect_hw();
 
+	ret = register_persistant_environment();
+	if (ret != 0)
+		printf("Cannot create the 'env0' persistant "
+			 "environment storage (%d)\n", ret);
+
 	return 0;
 }
 device_initcall(cfa10036_devices_init);
-- 
1.7.10.4


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Re: [PATCH 1/2] cfa-10036: Use the second MMC partition to store the environment

[Eric Bénard]

Hi Maxime,

Le Wed, 13 Feb 2013 17:45:17 +0100,
Maxime Ripard <maxime.ripard@free-electrons.com> a écrit :

> Since the only storage medium on the cfa-10036 is the MMC card, we need
> to have a registered environment partition on it if we want to be able
> to modify at runtime.
> 
maybe you could add :
code copied from imx23-olinuxino.c

Eric

> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> ---
>  arch/arm/boards/crystalfontz-cfa10036/cfa10036.c |   44 +++++++++++++++++++++-
>  1 file changed, 43 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
> index b59dbab..1821b10 100644
> --- a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
> +++ b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
> @@ -97,9 +97,46 @@ static int cfa10036_mem_init(void)
>  }
>  mem_initcall(cfa10036_mem_init);
>  
> +/**
> + * Try to register an environment storage on the attached MCI card
> + * @return 0 on success
> + *
> + * We rely on the existence of a usable SD card, already attached to
> + * our system, to get something like a persistent memory for our environment.
> + * If this SD card is also the boot media, we can use the second partition
> + * for our environment purpose (if present!).
> + */
> +static int register_persistant_environment(void)
> +{
> +	struct cdev *cdev;
> +
> +	/*
> +	 * The CFA-10036 only has one MCI card socket.
> +	 * So, we expect its name as "disk0".
> +	 */
> +	cdev = cdev_by_name("disk0");
> +	if (cdev == NULL) {
> +		pr_err("No SD card found\n");
> +		return -ENODEV;
> +	}
> +
> +	/* MCI card is present, also a useable partition on it? */
> +	cdev = cdev_by_name("disk0.1");
> +	if (cdev == NULL) {
> +		pr_err("No second partition available\n");
> +		pr_info("Please create at least a second partition with"
> +			" 256 kiB...512 kiB in size (your choice)\n");
> +		return -ENODEV;
> +	}
> +
> +	/* use the full partition as our persistent environment storage */
> +	return devfs_add_partition("disk0.1", 0, cdev->size,
> +						DEVFS_PARTITION_FIXED, "env0");
> +}
> +
>  static int cfa10036_devices_init(void)
>  {
> -	int i;
> +	int i, ret;
>  
>  	/* initizalize muxing */
>  	for (i = 0; i < ARRAY_SIZE(cfa10036_pads); i++)
> @@ -124,6 +161,11 @@ static int cfa10036_devices_init(void)
>  
>  	cfa10036_detect_hw();
>  
> +	ret = register_persistant_environment();
> +	if (ret != 0)
> +		printf("Cannot create the 'env0' persistant "
> +			 "environment storage (%d)\n", ret);
> +
>  	return 0;
>  }
>  device_initcall(cfa10036_devices_init);


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Re: [PATCH 1/2] cfa-10036: Use the second MMC partition to store the environment

[Jean-Christophe PLAGNIOL-VILLARD]

On 17:45 Wed 13 Feb     , Maxime Ripard wrote:
> Since the only storage medium on the cfa-10036 is the MMC card, we need
> to have a registered environment partition on it if we want to be able
> to modify at runtime.
> 
> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> ---
>  arch/arm/boards/crystalfontz-cfa10036/cfa10036.c |   44 +++++++++++++++++++++-
>  1 file changed, 43 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
> index b59dbab..1821b10 100644
> --- a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
> +++ b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
> @@ -97,9 +97,46 @@ static int cfa10036_mem_init(void)
>  }
>  mem_initcall(cfa10036_mem_init);
>  
> +/**
> + * Try to register an environment storage on the attached MCI card
> + * @return 0 on success
> + *
> + * We rely on the existence of a usable SD card, already attached to
> + * our system, to get something like a persistent memory for our environment.
> + * If this SD card is also the boot media, we can use the second partition
> + * for our environment purpose (if present!).
> + */
> +static int register_persistant_environment(void)
> +{
> +	struct cdev *cdev;
> +
> +	/*
> +	 * The CFA-10036 only has one MCI card socket.
> +	 * So, we expect its name as "disk0".
> +	 */
> +	cdev = cdev_by_name("disk0");
> +	if (cdev == NULL) {
> +		pr_err("No SD card found\n");
> +		return -ENODEV;
> +	}
> +
> +	/* MCI card is present, also a useable partition on it? */
> +	cdev = cdev_by_name("disk0.1");
> +	if (cdev == NULL) {
> +		pr_err("No second partition available\n");
> +		pr_info("Please create at least a second partition with"
> +			" 256 kiB...512 kiB in size (your choice)\n");
> +		return -ENODEV;
> +	}
> +
> +	/* use the full partition as our persistent environment storage */
> +	return devfs_add_partition("disk0.1", 0, cdev->size,
> +						DEVFS_PARTITION_FIXED, "env0");
> +}
it's time to have a common code

Best Regards,
J.
> +
>  static int cfa10036_devices_init(void)
>  {
> -	int i;
> +	int i, ret;
>  
>  	/* initizalize muxing */
>  	for (i = 0; i < ARRAY_SIZE(cfa10036_pads); i++)
> @@ -124,6 +161,11 @@ static int cfa10036_devices_init(void)
>  
>  	cfa10036_detect_hw();
>  
> +	ret = register_persistant_environment();
> +	if (ret != 0)
> +		printf("Cannot create the 'env0' persistant "
> +			 "environment storage (%d)\n", ret);
> +
>  	return 0;
>  }
>  device_initcall(cfa10036_devices_init);
> -- 
> 1.7.10.4
> 
> 
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> http://lists.infradead.org/mailman/listinfo/barebox

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Re: [PATCH 1/2] cfa-10036: Use the second MMC partition to store the environment

[Maxime Ripard]

Hi Jean-Christophe,

Le 13/02/2013 18:12, Jean-Christophe PLAGNIOL-VILLARD a écrit :
> On 17:45 Wed 13 Feb     , Maxime Ripard wrote:
>> Since the only storage medium on the cfa-10036 is the MMC card, we need
>> to have a registered environment partition on it if we want to be able
>> to modify at runtime.
>>
>> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
>> ---
>>  arch/arm/boards/crystalfontz-cfa10036/cfa10036.c |   44 +++++++++++++++++++++-
>>  1 file changed, 43 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
>> index b59dbab..1821b10 100644
>> --- a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
>> +++ b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
>> @@ -97,9 +97,46 @@ static int cfa10036_mem_init(void)
>>  }
>>  mem_initcall(cfa10036_mem_init);
>>  
>> +/**
>> + * Try to register an environment storage on the attached MCI card
>> + * @return 0 on success
>> + *
>> + * We rely on the existence of a usable SD card, already attached to
>> + * our system, to get something like a persistent memory for our environment.
>> + * If this SD card is also the boot media, we can use the second partition
>> + * for our environment purpose (if present!).
>> + */
>> +static int register_persistant_environment(void)
>> +{
>> +	struct cdev *cdev;
>> +
>> +	/*
>> +	 * The CFA-10036 only has one MCI card socket.
>> +	 * So, we expect its name as "disk0".
>> +	 */
>> +	cdev = cdev_by_name("disk0");
>> +	if (cdev == NULL) {
>> +		pr_err("No SD card found\n");
>> +		return -ENODEV;
>> +	}
>> +
>> +	/* MCI card is present, also a useable partition on it? */
>> +	cdev = cdev_by_name("disk0.1");
>> +	if (cdev == NULL) {
>> +		pr_err("No second partition available\n");
>> +		pr_info("Please create at least a second partition with"
>> +			" 256 kiB...512 kiB in size (your choice)\n");
>> +		return -ENODEV;
>> +	}
>> +
>> +	/* use the full partition as our persistent environment storage */
>> +	return devfs_add_partition("disk0.1", 0, cdev->size,
>> +						DEVFS_PARTITION_FIXED, "env0");
>> +}
> it's time to have a common code

I'm ok with doing it, where should it be stored?

Maxime

-- 
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Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

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Re: [PATCH 1/2] cfa-10036: Use the second MMC partition to store the environment

[Juergen Beisert]

Maxime Ripard wrote:
> Since the only storage medium on the cfa-10036 is the MMC card, we need
> to have a registered environment partition on it if we want to be able
> to modify at runtime.
>
> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> ---
>  arch/arm/boards/crystalfontz-cfa10036/cfa10036.c |   44
> +++++++++++++++++++++- 1 file changed, 43 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
> index b59dbab..1821b10 100644 
> --- a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
> +++ b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
> @@ -97,9 +97,46 @@ static int cfa10036_mem_init(void)
>  }
>  mem_initcall(cfa10036_mem_init);
>
> +/**
> + * Try to register an environment storage on the attached MCI card
> + * @return 0 on success
> + *
> + * We rely on the existence of a usable SD card, already attached to
> + * our system, to get something like a persistent memory for our environment.
> + * If this SD card is also the boot media, we can use the second partition
> + * for our environment purpose (if present!). 
> + */
> +static int register_persistant_environment(void)

register_persist*e*nt_environment

Seems a copy from my typo in the falconwing. I really should fix it :))

> [...]

jbe

-- 
Pengutronix e.K.                              | Juergen Beisert             |
Linux Solutions for Science and Industry      | http://www.pengutronix.de/  |

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Re: [PATCH 1/2] cfa-10036: Use the second MMC partition to store the environment

[Maxime Ripard]

Hi Juergen,

Le 14/02/2013 09:16, Juergen Beisert a écrit :
> Maxime Ripard wrote:
>> Since the only storage medium on the cfa-10036 is the MMC card, we need
>> to have a registered environment partition on it if we want to be able
>> to modify at runtime.
>>
>> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
>> ---
>>  arch/arm/boards/crystalfontz-cfa10036/cfa10036.c |   44
>> +++++++++++++++++++++- 1 file changed, 43 insertions(+), 1 deletion(-)
>>
>> diff --git a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
>> index b59dbab..1821b10 100644 
>> --- a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
>> +++ b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
>> @@ -97,9 +97,46 @@ static int cfa10036_mem_init(void)
>>  }
>>  mem_initcall(cfa10036_mem_init);
>>
>> +/**
>> + * Try to register an environment storage on the attached MCI card
>> + * @return 0 on success
>> + *
>> + * We rely on the existence of a usable SD card, already attached to
>> + * our system, to get something like a persistent memory for our environment.
>> + * If this SD card is also the boot media, we can use the second partition
>> + * for our environment purpose (if present!). 
>> + */
>> +static int register_persistant_environment(void)
> 
> register_persist*e*nt_environment
> 
> Seems a copy from my typo in the falconwing. I really should fix it :))

Oops :)
I will fix it, it will probably end up in a common function anyway.

Thanks,
Maxime

-- 
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Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com

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Re: [PATCH 1/2] cfa-10036: Use the second MMC partition to store the environment

[Eric Bénard]

Le Thu, 14 Feb 2013 11:10:54 +0100,
Maxime Ripard <maxime.ripard@free-electrons.com> a écrit :

> Hi Juergen,
> 
> Le 14/02/2013 09:16, Juergen Beisert a écrit :
> > Maxime Ripard wrote:
> >> Since the only storage medium on the cfa-10036 is the MMC card, we need
> >> to have a registered environment partition on it if we want to be able
> >> to modify at runtime.
> >>
> >> Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
> >> ---
> >>  arch/arm/boards/crystalfontz-cfa10036/cfa10036.c |   44
> >> +++++++++++++++++++++- 1 file changed, 43 insertions(+), 1 deletion(-)
> >>
> >> diff --git a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
> >> index b59dbab..1821b10 100644 
> >> --- a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
> >> +++ b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
> >> @@ -97,9 +97,46 @@ static int cfa10036_mem_init(void)
> >>  }
> >>  mem_initcall(cfa10036_mem_init);
> >>
> >> +/**
> >> + * Try to register an environment storage on the attached MCI card
> >> + * @return 0 on success
> >> + *
> >> + * We rely on the existence of a usable SD card, already attached to
> >> + * our system, to get something like a persistent memory for our environment.
> >> + * If this SD card is also the boot media, we can use the second partition
> >> + * for our environment purpose (if present!). 
> >> + */
> >> +static int register_persistant_environment(void)
> > 
> > register_persist*e*nt_environment
> > 
> > Seems a copy from my typo in the falconwing. I really should fix it :))
> 
> Oops :)
> I will fix it, it will probably end up in a common function anyway.
> 
FWIW : I have cooked a patch for this common function, I will be
able to send it tonight.

Eric

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[PATCH 1/3] env: add register_persistent_environment

[Eric Bénard]

- heavily copied from register_persistant_environment which was
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>

Signed-off-by: Eric Bénard <eric@eukrea.com>
---
 common/environment.c  | 40 ++++++++++++++++++++++++++++++++++++++++
 include/environment.h |  1 +
 2 files changed, 41 insertions(+)

diff --git a/common/environment.c b/common/environment.c
index e8d623f..55befd9 100644
--- a/common/environment.c
+++ b/common/environment.c
@@ -363,3 +363,43 @@ out:
 		free(buf_free);
 	return ret;
 }
+
+#ifdef __BAREBOX__
+/**
+ * Try to register an environment storage on a device's partition
+ * @return 0 on success
+ *
+ * We rely on the existence of a usable storage device, already attached to
+ * our system, to get something like a persistent memory for our environment.
+ * We need to specify the partition number to use on this device.
+ * @param[in] devname Name of the device
+ * @param[in] partnr Partition number
+ * @return 0 on success, anything else in case of failure
+ */
+
+int register_persistent_environment(const char *devname, unsigned int partnr)
+{
+	struct cdev *cdev;
+	char *partname;
+
+	if (!devname)
+		return -EINVAL;
+
+	cdev = cdev_by_name(devname);
+	if (cdev == NULL) {
+		pr_err("No %s present\n", devname);
+		return -ENODEV;
+	}
+	partname = asprintf("%s.%d", devname, partnr);
+	cdev = cdev_by_name(partname);
+	if (cdev == NULL) {
+		pr_err("No %s partition available\n", partname);
+		pr_info("Please create the partition %s to store the env\n", partname);
+		return -ENODEV;
+	}
+
+	return devfs_add_partition(partname, 0, cdev->size,
+						DEVFS_PARTITION_FIXED, "env0");
+}
+EXPORT_SYMBOL(register_persistent_environment);
+#endif
diff --git a/include/environment.h b/include/environment.h
index 7bdd213..d172f8f 100644
--- a/include/environment.h
+++ b/include/environment.h
@@ -71,6 +71,7 @@ int env_pop_context(void);
 int env_push_context(void);
 
 int export(const char *);
+int register_persistent_environment(const char *devname, unsigned int partnr);
 
 #endif	/* _ENVIRONMENT_H_ */
 
-- 
1.7.11.7


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[PATCH 2/3] imx23-olinuxino: swith to generic peristent env

[Eric Bénard]

Signed-off-by: Eric Bénard <eric@eukrea.com>
---
 arch/arm/boards/imx233-olinuxino/imx23-olinuxino.c | 44 +---------------------
 1 file changed, 2 insertions(+), 42 deletions(-)

diff --git a/arch/arm/boards/imx233-olinuxino/imx23-olinuxino.c b/arch/arm/boards/imx233-olinuxino/imx23-olinuxino.c
index 0482638..068436f 100644
--- a/arch/arm/boards/imx233-olinuxino/imx23-olinuxino.c
+++ b/arch/arm/boards/imx233-olinuxino/imx23-olinuxino.c
@@ -111,46 +111,6 @@ static void olinuxino_init_usb(void)
 	add_generic_usb_ehci_device(DEVICE_ID_DYNAMIC, IMX_USB_BASE, NULL);
 }
 
-/**
- * Try to register an environment storage on the attached MCI card
- * @return 0 on success
- *
- * We rely on the existence of a usable SD card, already attached to
- * our system, to get something like a persistent memory for our environment.
- * If this SD card is also the boot media, we can use the second partition
- * for our environment purpose (if present!).
- */
-static int register_persistant_environment(void)
-{
-	struct cdev *cdev;
-
-	/*
-	 * The imx23-olinuxino only has one MCI card socket.
-	 * So, we expect its name as "disk0".
-	 */
-	cdev = cdev_by_name("disk0");
-	if (cdev == NULL) {
-		pr_err("No MCI card preset\n");
-		return -ENODEV;
-	}
-
-
-
-	/* MCI card is present, also a useable partition on it? */
-	cdev = cdev_by_name("disk0.1");
-	if (cdev == NULL) {
-		pr_err("No second partition available\n");
-		pr_info("Please create at least a second partition with"
-			" 256 kiB...512 kiB in size (your choice)\n");
-		return -ENODEV;
-	}
-
-	/* use the full partition as our persistent environment storage */
-	return devfs_add_partition("disk0.1", 0, cdev->size,
-						DEVFS_PARTITION_FIXED, "env0");
-}
-
-
 static int imx23_olinuxino_devices_init(void)
 {
 	int i, rc;
@@ -174,9 +134,9 @@ static int imx23_olinuxino_devices_init(void)
 
 	olinuxino_init_usb();
 
-	rc = register_persistant_environment();
+	rc = register_persistent_environment("disk0", 1);
 	if (rc != 0)
-		printf("Cannot create the 'env0' persistant "
+		printf("Cannot create the 'env0' persistent "
 			 "environment storage (%d)\n", rc);
 
 	return 0;
-- 
1.7.11.7


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[PATCH 3/3] falconwing: switch to generic peristent env

[Eric Bénard]

Signed-off-by: Eric Bénard <eric@eukrea.com>
---
 arch/arm/boards/chumby_falconwing/falconwing.c | 38 +-------------------------
 1 file changed, 1 insertion(+), 37 deletions(-)

diff --git a/arch/arm/boards/chumby_falconwing/falconwing.c b/arch/arm/boards/chumby_falconwing/falconwing.c
index 0818666..3a7b830 100644
--- a/arch/arm/boards/chumby_falconwing/falconwing.c
+++ b/arch/arm/boards/chumby_falconwing/falconwing.c
@@ -265,42 +265,6 @@ static int falconwing_mem_init(void)
 }
 mem_initcall(falconwing_mem_init);
 
-/**
- * Try to register an environment storage on the attached MCI card
- * @return 0 on success
- *
- * We rely on the existence of a usable SD card, already attached to
- * our system, to get something like a persistent memory for our environment.
- * If this SD card is also the boot media, we can use the second partition
- * for our environment purpose (if present!).
- */
-static int register_persistant_environment(void)
-{
-	struct cdev *cdev;
-
-	/*
-	 * The chumby one only has one MCI card socket.
-	 * So, we expect its name as "disk0".
-	 */
-	cdev = cdev_by_name("disk0");
-	if (cdev == NULL) {
-		pr_err("No MCI card preset\n");
-		return -ENODEV;
-	}
-
-	/* MCI card is present, also a useable partition on it? */
-	cdev = cdev_by_name("disk0.1");
-	if (cdev == NULL) {
-		pr_err("No second partition available\n");
-		pr_info("Please create at least a second partition with"
-			" 256 kiB...512 kiB in size (your choice)\n");
-		return -ENODEV;
-	}
-
-	/* use the full partition as our persistent environment storage */
-	return devfs_add_partition("disk0.1", 0, cdev->size, DEVFS_PARTITION_FIXED, "env0");
-}
-
 #define GPIO_USB_HUB_RESET	29
 #define GPIO_USB_HUB_POWER	26
 
@@ -338,7 +302,7 @@ static int falconwing_devices_init(void)
 	armlinux_set_bootparams((void *)IMX_MEMORY_BASE + 0x100);
 	armlinux_set_architecture(MACH_TYPE_CHUMBY);
 
-	rc = register_persistant_environment();
+	rc = register_persistant_environment("disk0", 1);
 	if (rc != 0)
 		printf("Cannot create the 'env0' persistant environment storage (%d)\n", rc);
 
-- 
1.7.11.7


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Re: [PATCH 3/3] falconwing: switch to generic peristent env

[Juergen Beisert]

Eric Bénard wrote:
> [...]
>  #define GPIO_USB_HUB_RESET	29
>  #define GPIO_USB_HUB_POWER	26
>
> @@ -338,7 +302,7 @@ static int falconwing_devices_init(void)
>  	armlinux_set_bootparams((void *)IMX_MEMORY_BASE + 0x100);
>  	armlinux_set_architecture(MACH_TYPE_CHUMBY);
>
> -	rc = register_persistant_environment();
> +	rc = register_persistant_environment("disk0", 1);
                          ___^
:)

jbe

-- 
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[PATCH v2] falconwing: switch to generic peristent env

[Eric Bénard]

Signed-off-by: Eric Bénard <eric@eukrea.com>
---
v2: fix typo on persistent

 arch/arm/boards/chumby_falconwing/falconwing.c | 38 +-------------------------
 1 file changed, 1 insertion(+), 37 deletions(-)

diff --git a/arch/arm/boards/chumby_falconwing/falconwing.c b/arch/arm/boards/chumby_falconwing/falconwing.c
index 0818666..3e82596 100644
--- a/arch/arm/boards/chumby_falconwing/falconwing.c
+++ b/arch/arm/boards/chumby_falconwing/falconwing.c
@@ -265,42 +265,6 @@ static int falconwing_mem_init(void)
 }
 mem_initcall(falconwing_mem_init);
 
-/**
- * Try to register an environment storage on the attached MCI card
- * @return 0 on success
- *
- * We rely on the existence of a usable SD card, already attached to
- * our system, to get something like a persistent memory for our environment.
- * If this SD card is also the boot media, we can use the second partition
- * for our environment purpose (if present!).
- */
-static int register_persistant_environment(void)
-{
-	struct cdev *cdev;
-
-	/*
-	 * The chumby one only has one MCI card socket.
-	 * So, we expect its name as "disk0".
-	 */
-	cdev = cdev_by_name("disk0");
-	if (cdev == NULL) {
-		pr_err("No MCI card preset\n");
-		return -ENODEV;
-	}
-
-	/* MCI card is present, also a useable partition on it? */
-	cdev = cdev_by_name("disk0.1");
-	if (cdev == NULL) {
-		pr_err("No second partition available\n");
-		pr_info("Please create at least a second partition with"
-			" 256 kiB...512 kiB in size (your choice)\n");
-		return -ENODEV;
-	}
-
-	/* use the full partition as our persistent environment storage */
-	return devfs_add_partition("disk0.1", 0, cdev->size, DEVFS_PARTITION_FIXED, "env0");
-}
-
 #define GPIO_USB_HUB_RESET	29
 #define GPIO_USB_HUB_POWER	26
 
@@ -338,7 +302,7 @@ static int falconwing_devices_init(void)
 	armlinux_set_bootparams((void *)IMX_MEMORY_BASE + 0x100);
 	armlinux_set_architecture(MACH_TYPE_CHUMBY);
 
-	rc = register_persistant_environment();
+	rc = register_persistent_environment("disk0", 1);
 	if (rc != 0)
 		printf("Cannot create the 'env0' persistant environment storage (%d)\n", rc);
 
-- 
1.7.11.7


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[PATCH v3] falconwing: switch to generic peristent env

[Eric Bénard]

Signed-off-by: Eric Bénard <eric@eukrea.com>
---
v3: also fix the typo in the printf
v2: fix typo in persistent

 arch/arm/boards/chumby_falconwing/falconwing.c | 40 ++------------------------
 1 file changed, 2 insertions(+), 38 deletions(-)

diff --git a/arch/arm/boards/chumby_falconwing/falconwing.c b/arch/arm/boards/chumby_falconwing/falconwing.c
index 0818666..80eebba 100644
--- a/arch/arm/boards/chumby_falconwing/falconwing.c
+++ b/arch/arm/boards/chumby_falconwing/falconwing.c
@@ -265,42 +265,6 @@ static int falconwing_mem_init(void)
 }
 mem_initcall(falconwing_mem_init);
 
-/**
- * Try to register an environment storage on the attached MCI card
- * @return 0 on success
- *
- * We rely on the existence of a usable SD card, already attached to
- * our system, to get something like a persistent memory for our environment.
- * If this SD card is also the boot media, we can use the second partition
- * for our environment purpose (if present!).
- */
-static int register_persistant_environment(void)
-{
-	struct cdev *cdev;
-
-	/*
-	 * The chumby one only has one MCI card socket.
-	 * So, we expect its name as "disk0".
-	 */
-	cdev = cdev_by_name("disk0");
-	if (cdev == NULL) {
-		pr_err("No MCI card preset\n");
-		return -ENODEV;
-	}
-
-	/* MCI card is present, also a useable partition on it? */
-	cdev = cdev_by_name("disk0.1");
-	if (cdev == NULL) {
-		pr_err("No second partition available\n");
-		pr_info("Please create at least a second partition with"
-			" 256 kiB...512 kiB in size (your choice)\n");
-		return -ENODEV;
-	}
-
-	/* use the full partition as our persistent environment storage */
-	return devfs_add_partition("disk0.1", 0, cdev->size, DEVFS_PARTITION_FIXED, "env0");
-}
-
 #define GPIO_USB_HUB_RESET	29
 #define GPIO_USB_HUB_POWER	26
 
@@ -338,9 +302,9 @@ static int falconwing_devices_init(void)
 	armlinux_set_bootparams((void *)IMX_MEMORY_BASE + 0x100);
 	armlinux_set_architecture(MACH_TYPE_CHUMBY);
 
-	rc = register_persistant_environment();
+	rc = register_persistent_environment("disk0", 1);
 	if (rc != 0)
-		printf("Cannot create the 'env0' persistant environment storage (%d)\n", rc);
+		printf("Cannot create the 'env0' persistent environment storage (%d)\n", rc);
 
 	return 0;
 }
-- 
1.7.11.7


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Re: [PATCH 1/3] env: add register_persistent_environment

[Sascha Hauer]

On Thu, Feb 14, 2013 at 12:56:49PM +0100, Eric Bénard wrote:
> - heavily copied from register_persistant_environment which was
> Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
> 
> Signed-off-by: Eric Bénard <eric@eukrea.com>
> ---
>  common/environment.c  | 40 ++++++++++++++++++++++++++++++++++++++++
>  include/environment.h |  1 +

Please move the prototype to include/envfs.h. include/environment.h has
stuff for shell environment variables only.

>  2 files changed, 41 insertions(+)
> 
> diff --git a/common/environment.c b/common/environment.c
> index e8d623f..55befd9 100644
> --- a/common/environment.c
> +++ b/common/environment.c
> @@ -363,3 +363,43 @@ out:
>  		free(buf_free);
>  	return ret;
>  }
> +
> +#ifdef __BAREBOX__
> +/**
> + * Try to register an environment storage on a device's partition
> + * @return 0 on success
> + *
> + * We rely on the existence of a usable storage device, already attached to
> + * our system, to get something like a persistent memory for our environment.
> + * We need to specify the partition number to use on this device.
> + * @param[in] devname Name of the device
> + * @param[in] partnr Partition number
> + * @return 0 on success, anything else in case of failure
> + */
> +
> +int register_persistent_environment(const char *devname, unsigned int partnr)

I think envfs_register_partition would be a better name.

> +{
> +	struct cdev *cdev;
> +	char *partname;
> +
> +	if (!devname)
> +		return -EINVAL;
> +
> +	cdev = cdev_by_name(devname);
> +	if (cdev == NULL) {
> +		pr_err("No %s present\n", devname);
> +		return -ENODEV;
> +	}
> +	partname = asprintf("%s.%d", devname, partnr);

free partname?

Sascha

> +	cdev = cdev_by_name(partname);
> +	if (cdev == NULL) {
> +		pr_err("No %s partition available\n", partname);
> +		pr_info("Please create the partition %s to store the env\n", partname);
> +		return -ENODEV;
> +	}
> +
> +	return devfs_add_partition(partname, 0, cdev->size,
> +						DEVFS_PARTITION_FIXED, "env0");
> +}
> +EXPORT_SYMBOL(register_persistent_environment);
> +#endif
> diff --git a/include/environment.h b/include/environment.h
> index 7bdd213..d172f8f 100644
> --- a/include/environment.h
> +++ b/include/environment.h
> @@ -71,6 +71,7 @@ int env_pop_context(void);
>  int env_push_context(void);
>  
>  int export(const char *);
> +int register_persistent_environment(const char *devname, unsigned int partnr);
>  
>  #endif	/* _ENVIRONMENT_H_ */
>  
> -- 
> 1.7.11.7
> 
> 
> _______________________________________________
> barebox mailing list
> barebox@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/barebox

-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |

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[PATCH v4 1/3] env: add register_persistent_environment

[Eric Bénard]

- heavily copied from register_persistant_environment which was
Signed-off-by: Juergen Beisert <jbe@pengutronix.de>

Signed-off-by: Eric Bénard <eric@eukrea.com>
---
v4: rename function and move to envfs.h
v3: also fix the typo in the printf
v2: fix typo in persistent
 common/environment.c | 40 ++++++++++++++++++++++++++++++++++++++++
 include/envfs.h      |  2 ++
 2 files changed, 42 insertions(+)

diff --git a/common/environment.c b/common/environment.c
index e8d623f..78cd45c 100644
--- a/common/environment.c
+++ b/common/environment.c
@@ -363,3 +363,43 @@ out:
 		free(buf_free);
 	return ret;
 }
+
+#ifdef __BAREBOX__
+/**
+ * Try to register an environment storage on a device's partition
+ * @return 0 on success
+ *
+ * We rely on the existence of a usable storage device, already attached to
+ * our system, to get something like a persistent memory for our environment.
+ * We need to specify the partition number to use on this device.
+ * @param[in] devname Name of the device
+ * @param[in] partnr Partition number
+ * @return 0 on success, anything else in case of failure
+ */
+
+int envfs_register_partition(const char *devname, unsigned int partnr)
+{
+	struct cdev *cdev;
+	char *partname;
+
+	if (!devname)
+		return -EINVAL;
+
+	cdev = cdev_by_name(devname);
+	if (cdev == NULL) {
+		pr_err("No %s present\n", devname);
+		return -ENODEV;
+	}
+	partname = asprintf("%s.%d", devname, partnr);
+	cdev = cdev_by_name(partname);
+	if (cdev == NULL) {
+		pr_err("No %s partition available\n", partname);
+		pr_info("Please create the partition %s to store the env\n", partname);
+		return -ENODEV;
+	}
+
+	return devfs_add_partition(partname, 0, cdev->size,
+						DEVFS_PARTITION_FIXED, "env0");
+}
+EXPORT_SYMBOL(envfs_register_partition);
+#endif
diff --git a/include/envfs.h b/include/envfs.h
index 2db55ed..e9372b3 100644
--- a/include/envfs.h
+++ b/include/envfs.h
@@ -96,4 +96,6 @@ int envfs_save(char *filename, char *dirname);
 /* defaults to /dev/env0 */
 extern char *default_environment_path;
 
+int envfs_register_partition(const char *devname, unsigned int partnr);
+
 #endif /* _ENVFS_H */
-- 
1.7.11.7


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[PATCH v4 2/3] imx23-olinuxino: swith to generic peristent env

[Eric Bénard]

Signed-off-by: Eric Bénard <eric@eukrea.com>
---
v4: rename function and move to envfs.h

 arch/arm/boards/imx233-olinuxino/imx23-olinuxino.c | 45 ++--------------------
 1 file changed, 3 insertions(+), 42 deletions(-)

diff --git a/arch/arm/boards/imx233-olinuxino/imx23-olinuxino.c b/arch/arm/boards/imx233-olinuxino/imx23-olinuxino.c
index 0482638..9620e85 100644
--- a/arch/arm/boards/imx233-olinuxino/imx23-olinuxino.c
+++ b/arch/arm/boards/imx233-olinuxino/imx23-olinuxino.c
@@ -25,6 +25,7 @@
 #include <init.h>
 #include <gpio.h>
 #include <environment.h>
+#include <envfs.h>
 #include <errno.h>
 #include <mci.h>
 #include <asm/armlinux.h>
@@ -111,46 +112,6 @@ static void olinuxino_init_usb(void)
 	add_generic_usb_ehci_device(DEVICE_ID_DYNAMIC, IMX_USB_BASE, NULL);
 }
 
-/**
- * Try to register an environment storage on the attached MCI card
- * @return 0 on success
- *
- * We rely on the existence of a usable SD card, already attached to
- * our system, to get something like a persistent memory for our environment.
- * If this SD card is also the boot media, we can use the second partition
- * for our environment purpose (if present!).
- */
-static int register_persistant_environment(void)
-{
-	struct cdev *cdev;
-
-	/*
-	 * The imx23-olinuxino only has one MCI card socket.
-	 * So, we expect its name as "disk0".
-	 */
-	cdev = cdev_by_name("disk0");
-	if (cdev == NULL) {
-		pr_err("No MCI card preset\n");
-		return -ENODEV;
-	}
-
-
-
-	/* MCI card is present, also a useable partition on it? */
-	cdev = cdev_by_name("disk0.1");
-	if (cdev == NULL) {
-		pr_err("No second partition available\n");
-		pr_info("Please create at least a second partition with"
-			" 256 kiB...512 kiB in size (your choice)\n");
-		return -ENODEV;
-	}
-
-	/* use the full partition as our persistent environment storage */
-	return devfs_add_partition("disk0.1", 0, cdev->size,
-						DEVFS_PARTITION_FIXED, "env0");
-}
-
-
 static int imx23_olinuxino_devices_init(void)
 {
 	int i, rc;
@@ -174,9 +135,9 @@ static int imx23_olinuxino_devices_init(void)
 
 	olinuxino_init_usb();
 
-	rc = register_persistant_environment();
+	rc = envfs_register_partition("disk0", 1);
 	if (rc != 0)
-		printf("Cannot create the 'env0' persistant "
+		printf("Cannot create the 'env0' persistent "
 			 "environment storage (%d)\n", rc);
 
 	return 0;
-- 
1.7.11.7


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[PATCH v4 3/3] falconwing: switch to generic peristent env

[Eric Bénard]

Signed-off-by: Eric Bénard <eric@eukrea.com>
---
v4: rename function and move to envfs.h

 arch/arm/boards/chumby_falconwing/falconwing.c | 41 ++------------------------
 1 file changed, 3 insertions(+), 38 deletions(-)

diff --git a/arch/arm/boards/chumby_falconwing/falconwing.c b/arch/arm/boards/chumby_falconwing/falconwing.c
index 0818666..fd5bc4c 100644
--- a/arch/arm/boards/chumby_falconwing/falconwing.c
+++ b/arch/arm/boards/chumby_falconwing/falconwing.c
@@ -16,6 +16,7 @@
 #include <init.h>
 #include <gpio.h>
 #include <environment.h>
+#include <envfs.h>
 #include <errno.h>
 #include <mci.h>
 #include <sizes.h>
@@ -265,42 +266,6 @@ static int falconwing_mem_init(void)
 }
 mem_initcall(falconwing_mem_init);
 
-/**
- * Try to register an environment storage on the attached MCI card
- * @return 0 on success
- *
- * We rely on the existence of a usable SD card, already attached to
- * our system, to get something like a persistent memory for our environment.
- * If this SD card is also the boot media, we can use the second partition
- * for our environment purpose (if present!).
- */
-static int register_persistant_environment(void)
-{
-	struct cdev *cdev;
-
-	/*
-	 * The chumby one only has one MCI card socket.
-	 * So, we expect its name as "disk0".
-	 */
-	cdev = cdev_by_name("disk0");
-	if (cdev == NULL) {
-		pr_err("No MCI card preset\n");
-		return -ENODEV;
-	}
-
-	/* MCI card is present, also a useable partition on it? */
-	cdev = cdev_by_name("disk0.1");
-	if (cdev == NULL) {
-		pr_err("No second partition available\n");
-		pr_info("Please create at least a second partition with"
-			" 256 kiB...512 kiB in size (your choice)\n");
-		return -ENODEV;
-	}
-
-	/* use the full partition as our persistent environment storage */
-	return devfs_add_partition("disk0.1", 0, cdev->size, DEVFS_PARTITION_FIXED, "env0");
-}
-
 #define GPIO_USB_HUB_RESET	29
 #define GPIO_USB_HUB_POWER	26
 
@@ -338,9 +303,9 @@ static int falconwing_devices_init(void)
 	armlinux_set_bootparams((void *)IMX_MEMORY_BASE + 0x100);
 	armlinux_set_architecture(MACH_TYPE_CHUMBY);
 
-	rc = register_persistant_environment();
+	rc = envfs_register_partition("disk0", 1);
 	if (rc != 0)
-		printf("Cannot create the 'env0' persistant environment storage (%d)\n", rc);
+		printf("Cannot create the 'env0' persistent environment storage (%d)\n", rc);
 
 	return 0;
 }
-- 
1.7.11.7


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Re: [PATCH v4 1/3] env: add register_persistent_environment

[Jean-Christophe PLAGNIOL-VILLARD]

On 10:17 Tue 19 Feb     , Eric Bénard wrote:
> - heavily copied from register_persistant_environment which was
> Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
> 
> Signed-off-by: Eric Bénard <eric@eukrea.com>
> ---
> v4: rename function and move to envfs.h
> v3: also fix the typo in the printf
> v2: fix typo in persistent
>  common/environment.c | 40 ++++++++++++++++++++++++++++++++++++++++
>  include/envfs.h      |  2 ++
>  2 files changed, 42 insertions(+)
> 
> diff --git a/common/environment.c b/common/environment.c
> index e8d623f..78cd45c 100644
> --- a/common/environment.c
> +++ b/common/environment.c
> @@ -363,3 +363,43 @@ out:
>  		free(buf_free);
>  	return ret;
>  }
> +
> +#ifdef __BAREBOX__
> +/**
> + * Try to register an environment storage on a device's partition
> + * @return 0 on success
> + *
> + * We rely on the existence of a usable storage device, already attached to
> + * our system, to get something like a persistent memory for our environment.
> + * We need to specify the partition number to use on this device.
> + * @param[in] devname Name of the device
> + * @param[in] partnr Partition number
> + * @return 0 on success, anything else in case of failure
> + */
> +
> +int envfs_register_partition(const char *devname, unsigned int partnr)
a part can be a number or a name

Best Regards,
J.
> +{
> +	struct cdev *cdev;
> +	char *partname;
> +
> +	if (!devname)
> +		return -EINVAL;
> +
> +	cdev = cdev_by_name(devname);
> +	if (cdev == NULL) {
> +		pr_err("No %s present\n", devname);
> +		return -ENODEV;
> +	}
> +	partname = asprintf("%s.%d", devname, partnr);
> +	cdev = cdev_by_name(partname);
> +	if (cdev == NULL) {
> +		pr_err("No %s partition available\n", partname);
> +		pr_info("Please create the partition %s to store the env\n", partname);
> +		return -ENODEV;
> +	}
> +
> +	return devfs_add_partition(partname, 0, cdev->size,
> +						DEVFS_PARTITION_FIXED, "env0");
> +}
> +EXPORT_SYMBOL(envfs_register_partition);
> +#endif
> diff --git a/include/envfs.h b/include/envfs.h
> index 2db55ed..e9372b3 100644
> --- a/include/envfs.h
> +++ b/include/envfs.h
> @@ -96,4 +96,6 @@ int envfs_save(char *filename, char *dirname);
>  /* defaults to /dev/env0 */
>  extern char *default_environment_path;
>  
> +int envfs_register_partition(const char *devname, unsigned int partnr);
> +
>  #endif /* _ENVFS_H */
> -- 
> 1.7.11.7
> 
> 
> _______________________________________________
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> http://lists.infradead.org/mailman/listinfo/barebox

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Re: [PATCH v4 1/3] env: add register_persistent_environment

[Eric Bénard]

Le Tue, 19 Feb 2013 12:58:43 +0100,
Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :

> On 10:17 Tue 19 Feb     , Eric Bénard wrote:
> > +int envfs_register_partition(const char *devname, unsigned int partnr)
> a part can be a number or a name
> 
do you have an example please ?

Thanks,
Eric

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Re: [PATCH v4 1/3] env: add register_persistent_environment

[Jean-Christophe PLAGNIOL-VILLARD]

On 14:41 Tue 19 Feb     , Eric Bénard wrote:
> Le Tue, 19 Feb 2013 12:58:43 +0100,
> Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> 
> > On 10:17 Tue 19 Feb     , Eric Bénard wrote:
> > > +int envfs_register_partition(const char *devname, unsigned int partnr)
> > a part can be a number or a name
> > 
> do you have an example please ?
EFI GPT

Best Regards,
J.

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Re: [PATCH v4 1/3] env: add register_persistent_environment

[Eric Bénard]

Le Tue, 19 Feb 2013 16:35:48 +0100,
Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :

> On 14:41 Tue 19 Feb     , Eric Bénard wrote:
> > Le Tue, 19 Feb 2013 12:58:43 +0100,
> > Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> > 
> > > On 10:17 Tue 19 Feb     , Eric Bénard wrote:
> > > > +int envfs_register_partition(const char *devname, unsigned int partnr)
> > > a part can be a number or a name
> > > 
> > do you have an example please ?
> EFI GPT
> 
is that present in mailine ?

Eric

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Re: [PATCH v4 1/3] env: add register_persistent_environment

[Eric Bénard]

Le Tue, 19 Feb 2013 16:49:41 +0100,
Eric Bénard <eric@eukrea.com> a écrit :

> Le Tue, 19 Feb 2013 16:35:48 +0100,
> Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> 
> > On 14:41 Tue 19 Feb     , Eric Bénard wrote:
> > > Le Tue, 19 Feb 2013 12:58:43 +0100,
> > > Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> > > 
> > > > On 10:17 Tue 19 Feb     , Eric Bénard wrote:
> > > > > +int envfs_register_partition(const char *devname, unsigned int partnr)
> > > > a part can be a number or a name
> > > > 
> > > do you have an example please ?
> > EFI GPT
> > 
> is that present in mailine ?
> 
OK found it in next.

Handling that will lead to strange behaviour when someone will name "1"
the ata0.0's partition ;-)

Eric

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Re: [PATCH v4 1/3] env: add register_persistent_environment

[Jean-Christophe PLAGNIOL-VILLARD]

On 16:57 Tue 19 Feb     , Eric Bénard wrote:
> Le Tue, 19 Feb 2013 16:49:41 +0100,
> Eric Bénard <eric@eukrea.com> a écrit :
> 
> > Le Tue, 19 Feb 2013 16:35:48 +0100,
> > Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> > 
> > > On 14:41 Tue 19 Feb     , Eric Bénard wrote:
> > > > Le Tue, 19 Feb 2013 12:58:43 +0100,
> > > > Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> > > > 
> > > > > On 10:17 Tue 19 Feb     , Eric Bénard wrote:
> > > > > > +int envfs_register_partition(const char *devname, unsigned int partnr)
> > > > > a part can be a number or a name
> > > > > 
> > > > do you have an example please ?
> > > EFI GPT
> > > 
> > is that present in mailine ?
> > 
> OK found it in next.
> 
> Handling that will lead to strange behaviour when someone will name "1"
> the ata0.0's partition ;-)
so this will faill

don't people enough stupid to name their partition 1 deserve to have issues

Best Regards,
J.

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Re: [PATCH v4 1/3] env: add register_persistent_environment

[Eric Bénard]

Le Tue, 19 Feb 2013 20:21:12 +0100,
Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :

> On 16:57 Tue 19 Feb     , Eric Bénard wrote:
> > Le Tue, 19 Feb 2013 16:49:41 +0100,
> > Eric Bénard <eric@eukrea.com> a écrit :
> > 
> > > Le Tue, 19 Feb 2013 16:35:48 +0100,
> > > Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> > > 
> > > > On 14:41 Tue 19 Feb     , Eric Bénard wrote:
> > > > > Le Tue, 19 Feb 2013 12:58:43 +0100,
> > > > > Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> > > > > 
> > > > > > On 10:17 Tue 19 Feb     , Eric Bénard wrote:
> > > > > > > +int envfs_register_partition(const char *devname, unsigned int partnr)
> > > > > > a part can be a number or a name
> > > > > > 
> > > > > do you have an example please ?
> > > > EFI GPT
> > > > 
> > > is that present in mailine ?
> > > 
> > OK found it in next.
> > 
> > Handling that will lead to strange behaviour when someone will name "1"
> > the ata0.0's partition ;-)
> so this will faill
> 
> don't people enough stupid to name their partition 1 deserve to have issues
> 
end users's creativity has no limits ;-)

Eric

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Re: [PATCH v4 1/3] env: add register_persistent_environment

[Jean-Christophe PLAGNIOL-VILLARD]

On 07:55 Thu 21 Feb     , Eric Bénard wrote:
> Le Tue, 19 Feb 2013 20:21:12 +0100,
> Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> 
> > On 16:57 Tue 19 Feb     , Eric Bénard wrote:
> > > Le Tue, 19 Feb 2013 16:49:41 +0100,
> > > Eric Bénard <eric@eukrea.com> a écrit :
> > > 
> > > > Le Tue, 19 Feb 2013 16:35:48 +0100,
> > > > Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> > > > 
> > > > > On 14:41 Tue 19 Feb     , Eric Bénard wrote:
> > > > > > Le Tue, 19 Feb 2013 12:58:43 +0100,
> > > > > > Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> a écrit :
> > > > > > 
> > > > > > > On 10:17 Tue 19 Feb     , Eric Bénard wrote:
> > > > > > > > +int envfs_register_partition(const char *devname, unsigned int partnr)
> > > > > > > a part can be a number or a name
> > > > > > > 
> > > > > > do you have an example please ?
> > > > > EFI GPT
> > > > > 
> > > > is that present in mailine ?
> > > > 
> > > OK found it in next.
> > > 
> > > Handling that will lead to strange behaviour when someone will name "1"
> > > the ata0.0's partition ;-)
> > so this will faill
> > 
> > don't people enough stupid to name their partition 1 deserve to have issues
> > 
> end users's creativity has no limits ;-)
so they will have no limits issues

Best Regards,
J.

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Re: [PATCH v4 1/3] env: add register_persistent_environment

[Sascha Hauer]

On Tue, Feb 19, 2013 at 10:17:23AM +0100, Eric Bénard wrote:
> - heavily copied from register_persistant_environment which was
> Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
> 
> Signed-off-by: Eric Bénard <eric@eukrea.com>

I'm not 100% sure this is the right thing to do. It seems the only
usecase of this function is to print slightly more useful error messages than
we would get should we only call devfs_add_partition("disk.1",...)
from boards directly.

Anyway, two boards are using it, the whole thing has a negative
diffstat, so I applied it.

Sascha

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Pengutronix e.K.                           |                             |
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[PATCH 2/2] cfa10036: Update the environment

[Maxime Ripard]

Since we added a new partition in the board, the partitions number of
the boot and rootfs partition have changed as well.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/boards/crystalfontz-cfa10036/env/boot/mmc-ext3  |    6 +++---
 arch/arm/boards/crystalfontz-cfa10036/env/init/automount |    4 ++--
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/arch/arm/boards/crystalfontz-cfa10036/env/boot/mmc-ext3 b/arch/arm/boards/crystalfontz-cfa10036/env/boot/mmc-ext3
index 5e508f9..439d174 100644
--- a/arch/arm/boards/crystalfontz-cfa10036/env/boot/mmc-ext3
+++ b/arch/arm/boards/crystalfontz-cfa10036/env/boot/mmc-ext3
@@ -5,6 +5,6 @@ if [ "$1" = menu ]; then
 	exit
 fi
 
-global.bootm.image="/mnt/disk0.1/zImage-${global.hostname}"
-global.bootm.oftree="/mnt/disk0.1/oftree-${global.board.variant}"
-global.linux.bootargs.dyn.root="root=/dev/mmcblk0p3 rootfstype=ext3 rootwait"
+global.bootm.image="/mnt/disk0.2/zImage-${global.hostname}"
+global.bootm.oftree="/mnt/disk0.2/oftree-${global.board.variant}"
+global.linux.bootargs.dyn.root="root=/dev/mmcblk0p4 rootfstype=ext3 rootwait"
diff --git a/arch/arm/boards/crystalfontz-cfa10036/env/init/automount b/arch/arm/boards/crystalfontz-cfa10036/env/init/automount
index 668775d..8fdca7c 100644
--- a/arch/arm/boards/crystalfontz-cfa10036/env/init/automount
+++ b/arch/arm/boards/crystalfontz-cfa10036/env/init/automount
@@ -5,5 +5,5 @@ if [ "$1" = menu ]; then
 	exit
 fi
 
-mkdir -p /mnt/disk0.1
-automount -d /mnt/disk0.1 '[ -e /dev/disk0.1 ] && mount /dev/disk0.1 /mnt/disk0.1'
+mkdir -p /mnt/disk0.2
+automount -d /mnt/disk0.2 '[ -e /dev/disk0.2 ] && mount /dev/disk0.2 /mnt/disk0.2'
-- 
1.7.10.4


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[PATCHv2 0/2] ARM: cfa10036: Store the barebox environment on the MMC

[Maxime Ripard]

Hi,

The cfa-10036 comes only with a SD slot, so there was previously no way to
store in a persistent way the environment we could have modified other than
by modifying the code source itself.

These two patches register a new partition on the SD card to store that
environment, and update the default environment to reflect these changes.

Thanks,
Maxime

Changes from v1:
  - Make use of the new common envfs_register_partition function

Maxime Ripard (2):
  cfa-10036: Use the second MMC partition to store the environment
  cfa10036: Update the environment

 arch/arm/boards/crystalfontz-cfa10036/cfa10036.c         |    8 +++++++-
 arch/arm/boards/crystalfontz-cfa10036/env/boot/mmc-ext3  |    6 +++---
 arch/arm/boards/crystalfontz-cfa10036/env/init/automount |    4 ++--
 3 files changed, 12 insertions(+), 6 deletions(-)

-- 
1.7.10.4


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[PATCH 1/2] cfa-10036: Use the second MMC partition to store the environment

[Maxime Ripard]

Since the only storage medium on the cfa-10036 is the MMC card, we need
to have a registered environment partition on it if we want to be able
to modify at runtime.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
---
 arch/arm/boards/crystalfontz-cfa10036/cfa10036.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
index b59dbab..1bc20cf 100644
--- a/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
+++ b/arch/arm/boards/crystalfontz-cfa10036/cfa10036.c
@@ -17,6 +17,7 @@
 
 #include <common.h>
 #include <environment.h>
+#include <envfs.h>
 #include <errno.h>
 #include <fec.h>
 #include <gpio.h>
@@ -99,7 +100,7 @@ mem_initcall(cfa10036_mem_init);
 
 static int cfa10036_devices_init(void)
 {
-	int i;
+	int i, ret;
 
 	/* initizalize muxing */
 	for (i = 0; i < ARRAY_SIZE(cfa10036_pads); i++)
@@ -124,6 +125,11 @@ static int cfa10036_devices_init(void)
 
 	cfa10036_detect_hw();
 
+	ret = envfs_register_partition("disk0", 1);
+	if (ret != 0)
+		printf("Cannot create the 'env0' persistent "
+			 "environment storage (%d)\n", ret);
+
 	return 0;
 }
 device_initcall(cfa10036_devices_init);
-- 
1.7.10.4


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