From mboxrd@z Thu Jan 1 00:00:00 1970 From: Thomas Petazzoni Date: Wed, 29 May 2019 11:23:17 +0200 Subject: [Buildroot] [PATCH V3 01/10] arch/csky: Use VDSP instead of DSP In-Reply-To: References: <1559114328-23357-1-git-send-email-guoren@kernel.org> <1559114328-23357-2-git-send-email-guoren@kernel.org> <20190529092128.36183371@windsurf.home> <20190529095629.2b28cbb7@windsurf.home> <20190529103824.58560e4e@windsurf.home> Message-ID: <20190529112317.08fe1013@windsurf.home> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: buildroot@busybox.net Hello, On Wed, 29 May 2019 17:02:29 +0800 Guo Ren wrote: > DSP is no use in current buildroot and gcc default enable the DSP > feature for C-SKY. > So DSP is part of our standard ISA, we needn't put it in -mcpu=xxx. "DSP is no use in current Buildroot" is not correct. The option exists, and it changes the BR2_GCC_TARGET_CPU value. So it *is* used: it adds "e" to BR2_GCC_TARGET_CPU. So this explanation is not really good/sufficient. I am willing to help you formulate this properly, but since I still don't understand why you are dropping the DSP option, I can't really help by proposing a better wording. Best regards, Thomas -- Thomas Petazzoni, CTO, Bootlin Embedded Linux and Kernel engineering https://bootlin.com