From mboxrd@z Thu Jan 1 00:00:00 1970 From: Lokesh Vutla Date: Tue, 31 Jan 2017 09:40:27 +0530 Subject: [U-Boot] [u-boot PATCH v2 3/8] board: ti: am571x-idk: Support 6 port Ethernet or 4 port Ethernet with LCD In-Reply-To: <1485789316-22216-4-git-send-email-rogerq@ti.com> References: <1485789316-22216-1-git-send-email-rogerq@ti.com> <1485789316-22216-4-git-send-email-rogerq@ti.com> Message-ID: <712e1b3b-99eb-b8a2-b4fb-308e4545e7e7@ti.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Monday 30 January 2017 08:45 PM, Roger Quadros wrote: > The board can support either ICSS1 Ethernet ports or LCD > based on J51 jumper. Factory default is ICSS1 Ethernet ports > (i.e. Jumper not populated). > > Use the GPIO to detect the jumper setting and configure the > pinmux accordingly. Also select the right DT blob based on > the chosen configuration. > > J51 absent -> ICSS1 Ethernet, no LCD on VOUT -> am571x-idk.dtb > J51 present -> LCD on VOUT, no ICSS1 Ethernet -> am571x-idk-lcd-osd.dtb > > At present we only support the assume it is the Legacy LCD. > LCD detection mechanism needs to be added later to differentiate > between legacy vs new LCD. > > For ICSS1 Ethernet pins use the following convention to set the pinmux > as PMT data is not yet finalized. > > - If pin is output, set as PIN_OUTPUT > - If pin is input and external pull resistor present set as PIN_INPUT > - If pin is input and external pull resistor absent, set pull to same > as that of the external PHY's internall pull. > - Do not use SLEW_CONTROLon any pin. > > Cc: Nishanth Menon > Signed-off-by: Roger Quadros > Reviewed-by: Tom Rini Reviewed-by: Lokesh Vutla Thanks and regards, Lokesh