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-rw-r--r--Documentation/devicetree/bindings/net/cdns,macb.yaml7
-rw-r--r--drivers/net/ethernet/cadence/macb_main.c11
2 files changed, 16 insertions, 2 deletions
diff --git a/Documentation/devicetree/bindings/net/cdns,macb.yaml b/Documentation/devicetree/bindings/net/cdns,macb.yaml
index 4423d038b243..559d0f733e7e 100644
--- a/Documentation/devicetree/bindings/net/cdns,macb.yaml
+++ b/Documentation/devicetree/bindings/net/cdns,macb.yaml
@@ -115,6 +115,13 @@ properties:
power-domains:
maxItems: 1
+ cdns,refclk-ext:
+ type: boolean
+ description:
+ This selects if the REFCLK for RMII is provided by an external source.
+ For RGMII mode this selects if the 125MHz REF clock is provided by an external
+ source.
+
cdns,rx-watermark:
$ref: /schemas/types.yaml#/definitions/uint32
description:
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c
index 53aaf6b08e39..ce95fad8cedd 100644
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -4109,8 +4109,12 @@ static const struct net_device_ops macb_netdev_ops = {
static void macb_configure_caps(struct macb *bp,
const struct macb_config *dt_conf)
{
+ struct device_node *np = bp->pdev->dev.of_node;
+ bool refclk_ext;
u32 dcfg;
+ refclk_ext = of_property_read_bool(np, "cdns,refclk-ext");
+
if (dt_conf)
bp->caps = dt_conf->caps;
@@ -4141,6 +4145,9 @@ static void macb_configure_caps(struct macb *bp,
}
}
+ if (refclk_ext)
+ bp->caps |= MACB_CAPS_USRIO_HAS_CLKEN;
+
dev_dbg(&bp->pdev->dev, "Cadence caps 0x%08x\n", bp->caps);
}
@@ -5096,6 +5103,7 @@ static const struct macb_config mpfs_config = {
static const struct macb_config sama7g5_gem_config = {
.caps = MACB_CAPS_GIGABIT_MODE_AVAILABLE | MACB_CAPS_CLK_HW_CHG |
+ MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII |
MACB_CAPS_MIIONRGMII | MACB_CAPS_GEM_HAS_PTP,
.dma_burst_length = 16,
.clk_init = macb_clk_init,
@@ -5105,8 +5113,7 @@ static const struct macb_config sama7g5_gem_config = {
static const struct macb_config sama7g5_emac_config = {
.caps = MACB_CAPS_USRIO_DEFAULT_IS_MII_GMII |
- MACB_CAPS_USRIO_HAS_CLKEN | MACB_CAPS_MIIONRGMII |
- MACB_CAPS_GEM_HAS_PTP,
+ MACB_CAPS_MIIONRGMII | MACB_CAPS_GEM_HAS_PTP,
.dma_burst_length = 16,
.clk_init = macb_clk_init,
.init = macb_init,