[PATCH] ARM: imx: Increase PHY auto-negotiation timeout to 20s on MX8Menlo

The ethernet PHY on MX8Menlo board takes a while to come out of reset, increase the auto-negotiation timeout to prevent it from timing out in case the ethernet is used right after the board was reset.
Signed-off-by: Marek Vasut marex@denx.de --- Cc: "NXP i.MX U-Boot Team" uboot-imx@nxp.com Cc: Fabio Estevam festevam@gmail.com Cc: Francesco Dolcini francesco.dolcini@toradex.com Cc: Marcel Ziswiler marcel.ziswiler@toradex.com Cc: Philippe Schenker philippe.schenker@toradex.com Cc: Martyn Welch martyn.welch@collabora.com Cc: Stefano Babic sbabic@denx.de Cc: u-boot@lists.denx.de --- include/configs/imx8mm-mx8menlo.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/include/configs/imx8mm-mx8menlo.h b/include/configs/imx8mm-mx8menlo.h index a86bd76a3c7..5cc60af91e5 100644 --- a/include/configs/imx8mm-mx8menlo.h +++ b/include/configs/imx8mm-mx8menlo.h @@ -8,6 +8,9 @@
#include <configs/verdin-imx8mm.h>
+/* PHY needs a longer autoneg timeout */ +#define PHY_ANEG_TIMEOUT 20000 + /* Custom initial environment variables */ #undef CFG_EXTRA_ENV_SETTINGS #define CFG_EXTRA_ENV_SETTINGS \

On Tue, May 21, 2024 at 11:39:38AM +0200, Marek Vasut wrote:
The ethernet PHY on MX8Menlo board takes a while to come out of reset, increase the auto-negotiation timeout to prevent it from timing out in case the ethernet is used right after the board was reset.
Is this specific of MX8Menlo or something we should have on verdin-imx8mm instead? I am not aware of any report on this issue on the verdin, on the other hand the verdin imx8mm has normally only one ethernet interface, and this is the one from the verdin SOM.
Francesco

On 5/21/24 12:12 PM, Francesco Dolcini wrote:
On Tue, May 21, 2024 at 11:39:38AM +0200, Marek Vasut wrote:
The ethernet PHY on MX8Menlo board takes a while to come out of reset, increase the auto-negotiation timeout to prevent it from timing out in case the ethernet is used right after the board was reset.
Is this specific of MX8Menlo or something we should have on verdin-imx8mm instead? I am not aware of any report on this issue on the verdin, on the other hand the verdin imx8mm has normally only one ethernet interface, and this is the one from the verdin SOM.
This is specific to this particular carrier board and does not apply to Dahlia board or Verdin SoM.

On Tue, May 21, 2024 at 6:40 AM Marek Vasut marex@denx.de wrote:
The ethernet PHY on MX8Menlo board takes a while to come out of reset, increase the auto-negotiation timeout to prevent it from timing out in case the ethernet is used right after the board was reset.
Signed-off-by: Marek Vasut marex@denx.de
Applied, thanks.
participants (3)
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Fabio Estevam
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Francesco Dolcini
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Marek Vasut