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charset="UTF-8"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [172.16.0.116] X-ClientProxiedBy: Berlix.phytec.de (172.16.0.117) To Berlix.phytec.de (172.16.0.117) X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFmpkkeLIzCtJLcpLzFFi42JZI8BQqqsU5ppk8HmersXcNwdYLeYfOcdq sfzzbHaLl7PusVlsenyN1eLyrjlsFm9+nGWyaN17hN3i/9kP7A6cHptWdbJ5bF5S73H8xnYm j8+b5AJYorhsUlJzMstSi/TtErgyXratYSm4yllx9Gg3cwPjPfYuRk4OCQETif3zWxm7GLk4 hASWM0nsfdDOBuHcZZSYsWMmK0gVr4CNxMvZ25lBbBYBVYkfyzZAxQUlTs58wgJiiwpESCzb NRXMFhbwkOg73w+2gVlAXOLWk/lMILaIQAujxKbJhSALmAV2MEqc+rmKBWLbREaJlocHGEGq 2ATUJe5s+Aa2gVPASuLjq1mMEJMsJBa/OQg1VV6ieetssIuEgOwXl5azQPyjIDH390RmCDtc 4u2p38wTGIVnITl2FpKjZiEZOwvJ2AWMLKsYhXIzk7NTizKz9QoyKktSk/VSUjcxAqPp8ET1 SzsY++Z4HGJk4mA8xCjBwawkwvvxoHOSEG9KYmVValF+fFFpTmrxIUZpDhYlcd77PUyJQgLp iSWp2ampBalFMFkmDk6pBsbKKkV26c0bX8vN9Jm3lqHGoDsj8dxGteCEtTYTPbuNV9ZzTeOv lLY8byz3529OQMIqpa1dNSefhq+ew9/CzFU1b1+PQEdeYke7cMe0Deb6B6rYs98vKNMOd/u6 fedL4elCvx31t+hPeMj6J/CdRNMZg8W2avvCrokEtX7eOGPWy/hXV5/edlViKc5INNRiLipO BACBrzPblAIAAA== Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Am 31.03.22 um 08:58 schrieb Vignesh Raghavendra: > Hi Wadim, > > On 30/03/22 7:25 pm, Wadim Egorov wrote: >> Hi Bryan, >> >>> +/* (optional) for console */ >>> +&main_uart0 { >>> +    pinctrl-names = "default"; >>> +    pinctrl-0 = <&main_uart0_pins_default>; >>> +}; >>> + >>> +/* reserved for firmware */ >>> +&main_uart1 { >>> +    status = "reserved"; >>> +}; >> >> k3-image-gen says UART0 is used as a debug interface. See >> >> >> https://git.ti.com/cgit/k3-image-gen/k3-image-gen/tree/soc/am64x/evm/board-cfg.c#n81 >> >> >> So it seems that you can enable uart1 here. But people may run into a >> conflict with uart0 and k3-image-gen compiled with ENABLE_TRACE=1. >> >> If I am wrong, can you please clarify why you mark uart1 as reserved. >> > > We just seem to have same macro shared across multiple SoCs, > BOARDCFG_TRACE_DST_UART0 means logs are also directed to UART. Instance > of UART used for logging is platform specific. > > On AM64 SYSFW logs are directed to MAIN UART1 (MAIN UART0 is used for > linux console). I will work internally and get SYSFW documentation > updated to reflect the same. Thanks! OK, thank you for the clarification. > > Regards > Vignesh