From mboxrd@z Thu Jan 1 00:00:00 1970 Delivery-date: Mon, 26 May 2025 12:20:39 +0200 Received: from metis.whiteo.stw.pengutronix.de ([2a0a:edc0:2:b01:1d::104]) by lore.white.stw.pengutronix.de with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uJUwh-000UY7-0x for lore@lore.pengutronix.de; Mon, 26 May 2025 12:20:39 +0200 Received: from localhost ([127.0.0.1] helo=metis.whiteo.stw.pengutronix.de) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1uJUwg-000665-HO; Mon, 26 May 2025 12:20:38 +0200 Received: from ptz.office.stw.pengutronix.de ([2a0a:edc0:0:900:1d::77] helo=[127.0.0.1]) by metis.whiteo.stw.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1uJUwe-00065r-IV; Mon, 26 May 2025 12:20:36 +0200 Message-ID: Date: Mon, 26 May 2025 12:20:36 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird To: Roland Hieber , distrokit@pengutronix.de References: <20250526101147.1953428-1-rhi@pengutronix.de> <20250526101147.1953428-11-rhi@pengutronix.de> From: Ahmad Fatoum Content-Language: en-US, de-DE, de-BE In-Reply-To: <20250526101147.1953428-11-rhi@pengutronix.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: Re: [DistroKit] [PATCH 11/11] v7a: barebox: enable HWRNG drivers and allow fallback to PRNG X-BeenThere: distrokit@pengutronix.de X-Mailman-Version: 2.1.29 Precedence: list List-Id: DistroKit Mailinglist List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "DistroKit" X-SA-Exim-Connect-IP: 127.0.0.1 X-SA-Exim-Mail-From: distrokit-bounces@pengutronix.de X-SA-Exim-Scanned: No (on metis.whiteo.stw.pengutronix.de); SAEximRunCond expanded to false Hi Roland, On 5/26/25 12:11, Roland Hieber wrote: > Without ALLOW_PRNG_FALLBACK, barebox prints an unsightly error message > on boot: > > ERROR: no HWRNG available! Is this because of the stack protector? Which platforms lack the RNG? Cheers, Ahmad > > Since we don't have HWRNG drivers for all available platforms, enable > those that we have (RPi and AM33xx). For the other platforms allow > fallback to the PRNG, which will at least only print a warning on boot > on platforms without HWRNG: > > WARNING: falling back to Pseudo RNG source! > > … but in this case, this is expected. > > Signed-off-by: Roland Hieber > --- > configs/platform-v7a/barebox.config | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/configs/platform-v7a/barebox.config b/configs/platform-v7a/barebox.config > index 4780b6493a7a..86cb40acbf17 100644 > --- a/configs/platform-v7a/barebox.config > +++ b/configs/platform-v7a/barebox.config > @@ -1106,9 +1106,9 @@ CONFIG_HWRNG=y > # CONFIG_HW_RANDOM_TIMERIOMEM is not set > CONFIG_HWRNG_STM32=y > CONFIG_HW_RANDOM_OPTEE=y > -# CONFIG_HW_RANDOM_BCM2835 is not set > +CONFIG_HW_RANDOM_BCM2835=y > # CONFIG_HW_RANDOM_IPROC_RNG200 is not set > -# CONFIG_HW_RANDOM_OMAP is not set > +CONFIG_HW_RANDOM_OMAP=y > > # > # DMA support > @@ -1380,7 +1380,7 @@ CONFIG_IMAGE_SPARSE=y > CONFIG_STMP_DEVICE=y > CONFIG_LIBFDT=y > # CONFIG_RATP is not set > -# CONFIG_ALLOW_PRNG_FALLBACK is not set > +CONFIG_ALLOW_PRNG_FALLBACK=y > # CONFIG_CRC_CCITT is not set > CONFIG_CRC8=y > -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 |