diff options
| author | Fugang Duan <b38611@freescale.com> | 2015-11-11 10:39:33 +0800 |
|---|---|---|
| committer | Fugang Duan <b38611@freescale.com> | 2015-11-13 17:13:43 +0800 |
| commit | d85063b8d4de98a7eecf9e2c6d59bcff7654b6da (patch) | |
| tree | 4f82c73740d6129c42027a9a83871cdb95079cf1 | |
| parent | 1ba63745863ec9d250b7b6a835c80bcf444de603 (diff) | |
MLK-11853 ARM: dts: imx6qp-sabreauto: remove the enet pin reconfig
Tuning MMDC ZQ_PU_OFFSET impact DDR IO timing like the value is greater
than 0x9 causing enet lost packets due to the worse timing. Reinforce
ENET DDR IO drive strength can fix the issue. Use the default pin setting
can match the RGMII timing for AI board.
Worse timing cause performance drop, the performance has no drop after
enhancing the DDR IO pins drive strength. Pass over night test.
Signed-off-by: Fugang Duan <B38611@freescale.com>
| -rw-r--r-- | arch/arm/boot/dts/imx6qp-sabreauto.dts | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/arch/arm/boot/dts/imx6qp-sabreauto.dts b/arch/arm/boot/dts/imx6qp-sabreauto.dts index bd6262f69b86..66a55e9707bf 100644 --- a/arch/arm/boot/dts/imx6qp-sabreauto.dts +++ b/arch/arm/boot/dts/imx6qp-sabreauto.dts @@ -77,30 +77,6 @@ }; }; -&iomuxc { - imx6qdl-sabreauto { - pinctrl_enet: enetgrp { - fsl,pins = < - MX6QDL_PAD_KEY_COL1__ENET_MDIO 0x1b0b0 - MX6QDL_PAD_KEY_COL2__ENET_MDC 0x1b0b0 - MX6QDL_PAD_RGMII_TXC__RGMII_TXC 0x1b018 - MX6QDL_PAD_RGMII_TD0__RGMII_TD0 0x1b018 - MX6QDL_PAD_RGMII_TD1__RGMII_TD1 0x1b018 - MX6QDL_PAD_RGMII_TD2__RGMII_TD2 0x1b018 - MX6QDL_PAD_RGMII_TD3__RGMII_TD3 0x1b018 - MX6QDL_PAD_RGMII_TX_CTL__RGMII_TX_CTL 0x1b018 - MX6QDL_PAD_RGMII_RXC__RGMII_RXC 0x1b018 - MX6QDL_PAD_RGMII_RD0__RGMII_RD0 0x1b018 - MX6QDL_PAD_RGMII_RD1__RGMII_RD1 0x1b018 - MX6QDL_PAD_RGMII_RD2__RGMII_RD2 0x1b018 - MX6QDL_PAD_RGMII_RD3__RGMII_RD3 0x1b018 - MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL 0x1b018 - MX6QDL_PAD_GPIO_16__ENET_REF_CLK 0x4001b0a8 - >; - }; - }; -}; - &usdhc3 { /* imx6qp-sabreauto board has no CD pin issue, so enable vmmc-supply */ vmmc-supply = <®_sd3_vmmc>; |