[U-Boot] [PATCH v2 7/7] imx: add status reporting for HAB status

From: Bernhard Walle <bernhard@bwalle.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2 7/7] imx: add status reporting for HAB status
Date: Tue, 20 Aug 2013 22:21:36 +0200	[thread overview]
Message-ID: <kv0j49$jqr$1@ger.gmane.org> (raw)
In-Reply-To: <1376318374-3497-8-git-send-email-sbabic@denx.de>

Hi,

Am 12.08.13 16:39, schrieb Stefano Babic:
> +
> +bool is_hab_enabled(void)
> +{
> +	struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
> +	struct fuse_bank *bank = &ocotp->bank[0];
> +	struct fuse_bank0_regs *fuse =
> +		(struct fuse_bank0_regs *)bank->fuse_regs;
> +	uint32_t reg = readl(&fuse->cfg5);
> +
> +	return (reg & 0x2) == 0x2;
> +}

With the exception of that function and the required structure
definitions, the whole code also works with i.MX53 (tested with LOCO
board), too. Also AN4581 [1] that describes HAB doesn't differentiate
between i.MX53 and i.MX6 in that case as they both use HAB v4.

I think you have more experience how to organize the code (I added a few
symlinks and modified only the Makefile, but I guess that symlink are
not the best solution).

Regards,
Bernhard

[1] http://cache.freescale.com/files/32bit/doc/app_note/AN4581.pdf