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ENGR00322839 ARM: dts: imx6sx: enet RGMII TXCLK output drive strength is weak
authorFugang Duan <b38611@freescale.com>
Mon, 8 Dec 2014 10:40:02 +0000 (18:40 +0800)
committerNitin Garg <nitin.garg@freescale.com>
Fri, 16 Jan 2015 03:18:39 +0000 (21:18 -0600)
commitbf7655e340d0e1994494158b051400c5f4eda052
tree3391bbaae3b5c9796507d949c391d4e8b7ec5c8dtree | snapshot
parentd657e72adc37792f4c1b8b050c6b6ca572aa311ccommit | diff
ENGR00322839 ARM: dts: imx6sx: enet RGMII TXCLK output drive strength is weak

The current enet RGMII TXCLK rise/fall time which could be observed(~0.85ns)
is longer than requirement (<=0.75ns).

The current setting, SPEED/DSE/SRE=10/110/1 is used, and then it needs to
increase DSE to 111 "37 Ohm @ 3.3V, 21 Ohm@1.8V, 34 Ohm for DDR". After the
change RGMII TXCLK match the spec requirement.

Signed-off-by: Fugang Duan <B38611@freescale.com>
arch/arm/boot/dts/imx6sx-sdb.dts diff | blob | history
Linux kernel for KaRo TX COM modules