From mboxrd@z Thu Jan 1 00:00:00 1970 From: Linus Walleij Date: Thu, 25 Feb 2016 15:36:17 +0000 Subject: Re: [PATCH 11/11] ARM: versatile: move CLCD configuration to device tree Message-Id: List-Id: References: <1454594660-7532-1-git-send-email-linus.walleij@linaro.org> <1454594660-7532-12-git-send-email-linus.walleij@linaro.org> <56CC2D39.80909@ti.com> <56CC546A.9070705@ti.com> <20160224104638.GL19428@n2100.arm.linux.org.uk> <56CD924F.50108@ti.com> In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-arm-kernel@lists.infradead.org On Thu, Feb 25, 2016 at 3:35 PM, Pantelis Antoniou wrote: >> On Feb 25, 2016, at 15:43 , Linus Walleij wrote: >> It also means there is no way to get the console up without the right >> firmware files in the filesystem. I think that is really crap compared >> to what we have today where the display will always come up, and >> basically a regression. >> >> I understand the stance with respect to things like add-on hardware >> like a Bluetooth board or WLAN or whatnot. But the fbdev console >> is just too basic, like a serial port IMO. >> >> Sure in the ARM world we usually have a serial console, but this is >> seriously breaking current practice. > > As Tomi mentioned firmware files can be located in the kernel image; there is no > requirement to be in a filesystem, and that application can be performed really > early, before even early init. Are you thinking about exploiting an appended DT with CONFIG_ARM_APPENDED_DTB or something else? Yours, Linus Walleij From mboxrd@z Thu Jan 1 00:00:00 1970 From: linus.walleij@linaro.org (Linus Walleij) Date: Thu, 25 Feb 2016 16:36:17 +0100 Subject: [PATCH 11/11] ARM: versatile: move CLCD configuration to device tree In-Reply-To: References: <1454594660-7532-1-git-send-email-linus.walleij@linaro.org> <1454594660-7532-12-git-send-email-linus.walleij@linaro.org> <56CC2D39.80909@ti.com> <56CC546A.9070705@ti.com> <20160224104638.GL19428@n2100.arm.linux.org.uk> <56CD924F.50108@ti.com> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Thu, Feb 25, 2016 at 3:35 PM, Pantelis Antoniou wrote: >> On Feb 25, 2016, at 15:43 , Linus Walleij wrote: >> It also means there is no way to get the console up without the right >> firmware files in the filesystem. I think that is really crap compared >> to what we have today where the display will always come up, and >> basically a regression. >> >> I understand the stance with respect to things like add-on hardware >> like a Bluetooth board or WLAN or whatnot. But the fbdev console >> is just too basic, like a serial port IMO. >> >> Sure in the ARM world we usually have a serial console, but this is >> seriously breaking current practice. > > As Tomi mentioned firmware files can be located in the kernel image; there is no > requirement to be in a filesystem, and that application can be performed really > early, before even early init. Are you thinking about exploiting an appended DT with CONFIG_ARM_APPENDED_DTB or something else? Yours, Linus Walleij