diff options
| author | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-08-10 15:28:40 +0200 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-09-20 17:45:12 +0200 |
| commit | 7ad9771527d2b1c884beb22d9df28bae899f8d3d (patch) | |
| tree | 6f35ab125527b2d21ab2bee26012060e58f435d8 /arch/arm/boot/dts/tegra124-platforms/tegra124-apalis-gpio.dtsi | |
| parent | 9efd8683fc4b4d626e3116fc62ba2417a0fc5a94 (diff) | |
apalis-tk1: fix pcie reset for reliable gigabit ethernet operation
It turns out that the current PCIe reset implementation is not quite
working reliably due to some Intel i210 errata. Fix this by making sure
the i210's +V3.3_ETH rail is properly disabled during its reset
sequence.
Also further improve on the bringing up the PCIe switch as found on the
Apalis Evaluation board.
Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Acked-by: Dominik Sliwa <dominik.sliwa@toradex.com>
Diffstat (limited to 'arch/arm/boot/dts/tegra124-platforms/tegra124-apalis-gpio.dtsi')
| -rw-r--r-- | arch/arm/boot/dts/tegra124-platforms/tegra124-apalis-gpio.dtsi | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/arch/arm/boot/dts/tegra124-platforms/tegra124-apalis-gpio.dtsi b/arch/arm/boot/dts/tegra124-platforms/tegra124-apalis-gpio.dtsi index 100e3449c9b0..3dc15c51114b 100644 --- a/arch/arm/boot/dts/tegra124-platforms/tegra124-apalis-gpio.dtsi +++ b/arch/arm/boot/dts/tegra124-platforms/tegra124-apalis-gpio.dtsi @@ -36,6 +36,8 @@ >; gpio-output-low = < TEGRA_GPIO(C, 0) + TEGRA_GPIO(O, 5) /* LAN_WAKE_N */ + TEGRA_GPIO(O, 6) /* LAN_DEV_OFF_N */ TEGRA_GPIO(Q, 0) /* Shift_CTRL_OE[0] */ TEGRA_GPIO(Q, 1) /* Shift_CTRL_OE[1] */ TEGRA_GPIO(Q, 2) /* Shift_CTRL_OE[2] */ @@ -43,7 +45,9 @@ TEGRA_GPIO(R, 0) /* Shift_CTRL_Dir_In[0] */ TEGRA_GPIO(R, 1) /* Shift_CTRL_Dir_In[1] */ TEGRA_GPIO(R, 2) /* Shift_CTRL_OE[3] */ + TEGRA_GPIO(S, 2) /* LAN_RESET_N */ TEGRA_GPIO(S, 3) /* Shift_CTRL_Dir_In[2] */ + TEGRA_GPIO(U, 4) /* RESET_MOCI_CTRL */ TEGRA_GPIO(BB, 3) TEGRA_GPIO(BB, 6) >; @@ -51,14 +55,9 @@ TEGRA_GPIO(N, 2) TEGRA_GPIO(N, 4) TEGRA_GPIO(N, 5) -#if 0 - TEGRA_GPIO(O, 6) /* LAN_DEV_OFF# */ -#endif TEGRA_GPIO(Q, 5) /* Shift_CTRL_Dir_Out[0] */ TEGRA_GPIO(Q, 6) /* Shift_CTRL_Dir_Out[1] */ TEGRA_GPIO(Q, 7) /* Shift_CTRL_Dir_Out[2] */ - TEGRA_GPIO(S, 2) /* LAN_RESET# */ - TEGRA_GPIO(U, 4) TEGRA_GPIO(BB, 5) >; }; |