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a=rsa-sha256; c=simple/simple; d=flygoat.com; s=default; t=1607415356; bh=Y3s1E8KKlNUWMouLDe3abdz9vmn2MrdVzMacGK09aJI=; h=Subject:To:Cc:References:From:Date:In-Reply-To:From; b=acaYppbYTeEcSChxX1H57jhJz4jsBU3QTHoLr8c4NPAxCDZgbnxe0ZW5wpIp7lqyJ pQDsENQm88FzaJ0WO1WshG/hRbhOnvRxZTy5S+OLTQrSE4DmOaYs2P4gOo8UOk/GLW YHuwmp6HeTZUq60XGf+QQSfa9ojgslK3NwYRgdFo= Subject: Re: [PATCH v2 3/4] MIPS: Loongson64: DTS: Add SPI support to LS7A To: Qing Zhang , Mark Brown , Rob Herring , Thomas Bogendoerfer Cc: linux-spi@vger.kernel.org, Huacai Chen , devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, gaojuxin@loongson.cn, yangtiezhu@loongson.cn References: <1607413467-17698-1-git-send-email-zhangqing@loongson.cn> <1607413467-17698-3-git-send-email-zhangqing@loongson.cn> From: Jiaxun Yang Message-ID: Date: Tue, 8 Dec 2020 16:15:43 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.5.1 MIME-Version: 1.0 In-Reply-To: <1607413467-17698-3-git-send-email-zhangqing@loongson.cn> Content-Type: text/plain; charset=gbk; format=flowed Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 5B13D42374 X-Spamd-Result: default: False [1.40 / 10.00]; RCVD_VIA_SMTP_AUTH(0.00)[]; ARC_NA(0.00)[]; R_DKIM_ALLOW(0.00)[flygoat.com:s=default]; MID_RHS_MATCH_FROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; TAGGED_RCPT(0.00)[dt]; MIME_GOOD(-0.10)[text/plain]; R_SPF_SOFTFAIL(0.00)[~all]; RECEIVED_SPAMHAUS_PBL(0.00)[101.84.78.3:received]; ML_SERVERS(-3.10)[213.133.102.83]; DKIM_TRACE(0.00)[flygoat.com:+]; DMARC_POLICY_ALLOW(0.00)[flygoat.com,none]; RCPT_COUNT_SEVEN(0.00)[11]; DMARC_POLICY_ALLOW_WITH_FAILURES(0.00)[]; DBL_PROHIBIT(0.00)[0.0.0.0:email,0.0.0.16:email]; RCVD_NO_TLS_LAST(0.10)[]; FROM_EQ_ENVFROM(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:24940, ipnet:213.133.96.0/19, country:DE]; RCVD_COUNT_TWO(0.00)[2]; SUSPICIOUS_RECIPS(1.50)[]; HFILTER_HELO_BAREIP(3.00)[213.133.102.83,1] X-Rspamd-Server: mail20.mymailcheap.com Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ÔÚ 2020/12/8 15:44, Qing Zhang дµÀ: > add spi and amd node support. Hi Qing, Thanks for your patch. What is AMD node? Also given that different boards may have different flash, is it a wise idea to hardcode here? Thanks. - Jiaxun > > Signed-off-by: Qing Zhang > --- > > v2: > - Add spi about pci device DT > --- > arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 20 ++++++++++++++++++++ > 1 file changed, 20 insertions(+) > > diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi > index f99a7a1..ab8836b 100644 > --- a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi > +++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi > @@ -405,6 +405,26 @@ > interrupt-map-mask = <0 0 0 0>; > interrupt-map = <0 0 0 0 &pic 39 IRQ_TYPE_LEVEL_HIGH>; > }; > + > + spi@16,0 { > + compatible = "pci0014,7a0b.0", > + "pci0014,7a0b", > + "pciclass088000", > + "pciclass0880"; > + > + #address-cells = <1>; > + #size-cells = <0>; > + > + reg = <0xb000 0x0 0x0 0x0 0x0>; > + num-chipselects = <0>; > + spiflash: s25fl016k@0 { > + #address-cells = <1>; > + #size-cells = <1>; > + compatible ="spansion,s25fl016k","jedec,spi-nor"; > + spi-max-frequency=<50000000>; > + reg=<0>; > + }; > + }; > }; > > isa {