diff options
| -rw-r--r-- | Documentation/devicetree/bindings/net/cpsw.txt | 7 | ||||
| -rw-r--r-- | drivers/net/ethernet/ti/cpsw.c | 9 |
2 files changed, 16 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/net/cpsw.txt b/Documentation/devicetree/bindings/net/cpsw.txt index a9df21aaa154..676ecf62491d 100644 --- a/Documentation/devicetree/bindings/net/cpsw.txt +++ b/Documentation/devicetree/bindings/net/cpsw.txt @@ -30,6 +30,13 @@ Optional properties: - dual_emac : Specifies Switch to act as Dual EMAC - syscon : Phandle to the system control device node, which is the control module device of the am33x +- mode-gpios : Should be added if one/multiple gpio lines are + required to be driven so that cpsw data lines + can be connected to the phy via selective mux. + For example in dra72x-evm, pcf gpio has to be + driven low so that cpsw slave 0 and phy data + lines are connected via mux. + Slave Properties: Required properties: diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c index 8fc90f1c872c..c670317f3cb0 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -29,6 +29,7 @@ #include <linux/workqueue.h> #include <linux/delay.h> #include <linux/pm_runtime.h> +#include <linux/gpio.h> #include <linux/of.h> #include <linux/of_net.h> #include <linux/of_device.h> @@ -2207,6 +2208,7 @@ static int cpsw_probe(struct platform_device *pdev) void __iomem *ss_regs; struct resource *res, *ss_res; const struct of_device_id *of_id; + struct gpio_descs *mode; u32 slave_offset, sliver_offset, slave_size; int ret = 0, i; int irq; @@ -2232,6 +2234,13 @@ static int cpsw_probe(struct platform_device *pdev) goto clean_ndev_ret; } + mode = devm_gpiod_get_array_optional(&pdev->dev, "mode", GPIOD_OUT_LOW); + if (IS_ERR(mode)) { + ret = PTR_ERR(mode); + dev_err(&pdev->dev, "gpio request failed, ret %d\n", ret); + goto clean_ndev_ret; + } + /* * This may be required here for child devices. */ |