diff options
| author | Martin Kaistra <martin.kaistra@linutronix.de> | 2025-04-15 17:04:00 +0200 |
|---|---|---|
| committer | Michal Simek <michal.simek@amd.com> | 2025-06-02 09:13:49 +0200 |
| commit | 6759bd73e9cf491c5049f87b84e627920efb5824 (patch) | |
| tree | 578dd0b47d3703289dd9494cb16541b36b4ed8e8 /drivers/net/zynq_gem.c | |
| parent | 90df44fb4f0e1cbe18b02080ef8bf9e365f867b8 (diff) | |
net: gem: ignore tx_clk if MII is used
If the MII interface is used, the PHY is the clock master, thus don't
set the clock rate. On Zynq-7000, this will prevent the following
error:
zynq_gem ethernet@e000b000: failed to set tx clock rate 25000000
Signed-off-by: Martin Kaistra <martin.kaistra@linutronix.de>
Link: https://lore.kernel.org/r/20250415150400.136723-1-martin.kaistra@linutronix.de
Signed-off-by: Michal Simek <michal.simek@amd.com>
Diffstat (limited to 'drivers/net/zynq_gem.c')
| -rw-r--r-- | drivers/net/zynq_gem.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c index 461805ae53f..703e22479d2 100644 --- a/drivers/net/zynq_gem.c +++ b/drivers/net/zynq_gem.c @@ -567,12 +567,14 @@ static int zynq_gem_init(struct udevice *dev) } #endif - ret = clk_get_rate(&priv->tx_clk); - if (ret != clk_rate) { - ret = clk_set_rate(&priv->tx_clk, clk_rate); - if (IS_ERR_VALUE(ret)) { - dev_err(dev, "failed to set tx clock rate %ld\n", clk_rate); - return ret; + if (priv->interface != PHY_INTERFACE_MODE_MII) { + ret = clk_get_rate(&priv->tx_clk); + if (ret != clk_rate) { + ret = clk_set_rate(&priv->tx_clk, clk_rate); + if (IS_ERR_VALUE(ret)) { + dev_err(dev, "failed to set tx clock rate %ld\n", clk_rate); + return ret; + } } } |