Barebox State Framework

[Sascha Hauer]

On Mon, Mar 20, 2017 at 07:39:27AM +0300, Çağlar Kilimci wrote:
> Hi,
> 
> 
> 2017-03-17 10:39 GMT+03:00 Sascha Hauer <s.hauer at pengutronix.de>:
> > Hi,
> >
> > On Thu, Mar 16, 2017 at 04:55:07PM +0300, Çağlar Kilimci wrote:
> >> Hello all,
> >>
> >> As my general purpose of updating a system with RUAC [1], I need to
> >> use Barebox State Framework but I could not run it properly. I have
> >> appended Barebox config these:
> >>
> >> CONFIG_STATE=y
> >> CONFIG_STATE_CRYPTO=y
> >> CONFIG_CMD_SHA1SUM=y
> >> CONFIG_CMD_SHA224SUM=y
> >> CONFIG_CMD_SHA256SUM=y
> >> CONFIG_CMD_SHA384SUM=y
> >> CONFIG_CMD_SHA512SUM=y
> >> CONFIG_CMD_STATE=y
> >> CONFIG_STATE_DRV=y
> >> CONFIG_DIGEST_HMAC=y
> >> CONFIG_DIGEST_SHA1_GENERIC=y
> >> CONFIG_DIGEST_HMAC_GENERIC=y
> >> CONFIG_CRYPTO_KEYSTORE=y
> >> CONFIG_BOOTCHOOSER=y
> >> CONFIG_CMD_BOOTCHOOSER=y
> >>
> >> And also, I include below into my dts:
> >> state: state at 0 {
> >> magic = <0x27031977>;
> >> compatible = "barebox,state";
> >> backend-type = "raw";
> >> backend = "partname:state";
> >
> > This looks wrong. This should be a phandle pointing to the partition you
> > want to use.
> 
> Should it be like:
>    backend = "mmc0:0";

No. A phandle is a pointer to an existing node:

	backend = &state_partition;

With state_partition defined somewhere else as:

	mmc0: mmc at 0xdeadbeef {
		compatible = "foo-mmc";
		state_partition: partition at 10000 {
			reg = <0x100000 0x20000>;
		};
	};

Or, if you want to use dos partitions, you can go like this:

	backend = &mmc0 "partname:1";

Sascha

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