Commit 2e205ef7 authored by Vignesh R's avatar Vignesh R Committed by Tom Rini
Browse files

net: cpsw: Add support to drive gpios for ethernet to be functional

On DRA72 EVM, cpsw slaves may be muxed with other modules. This
selection is controlled by a pcf gpio line. Add support for cpsw driver
to acquire mode-gpios and select the appropriate slave using gpio APIs.
Signed-off-by: default avatarVignesh R <>
Reviewed-by: default avatarTom Rini <>
Acked-by: default avatarJoe Hershberger <>
Reviewed-by: default avatarMugunthan V N <>
parent 06974ea0
......@@ -22,6 +22,7 @@
#include <netdev.h>
#include <cpsw.h>
#include <asm/errno.h>
#include <asm/gpio.h>
#include <asm/io.h>
#include <phy.h>
#include <asm/arch/cpu.h>
......@@ -1152,12 +1153,14 @@ static int cpsw_eth_ofdata_to_platdata(struct udevice *dev)
struct eth_pdata *pdata = dev_get_platdata(dev);
struct cpsw_priv *priv = dev_get_priv(dev);
struct gpio_desc *mode_gpios;
const char *phy_mode;
const void *fdt = gd->fdt_blob;
int node = dev->of_offset;
int subnode;
int slave_index = 0;
int active_slave;
int num_mode_gpios;
int ret;
pdata->iobase = dev_get_addr(dev);
......@@ -1203,6 +1206,15 @@ static int cpsw_eth_ofdata_to_platdata(struct udevice *dev)
return -ENOENT;
num_mode_gpios = gpio_get_list_count(dev, "mode-gpios");
if (num_mode_gpios > 0) {
mode_gpios = malloc(sizeof(struct gpio_desc) *
gpio_request_list_by_name(dev, "mode-gpios", mode_gpios,
num_mode_gpios, GPIOD_IS_OUT);
active_slave = fdtdec_get_int(fdt, node, "active_slave", 0);
priv->data.active_slave = active_slave;
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