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authorLucas Stach <dev@lynxeye.de>2019-11-09 15:28:26 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2019-11-11 09:15:55 +0100
commit269b39454d5929e3352ab02761df63f0e2fbae79 (patch)
tree1bb2cbbc4ebab3737c6643259bf8f8ef19f365cd
parent667f2367d35ef967fd766b134b0746fa3a17e3f4 (diff)
downloadbarebox-269b39454d5929e3352ab02761df63f0e2fbae79.tar.gz
net: macb: handle more clocks
Both pclk and hclk are required clocks in the DT binding. rx_clk and tx_clk are optional, but must be enabled if a system has separate gates for them. Signed-off-by: Lucas Stach <dev@lynxeye.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
-rw-r--r--drivers/net/macb.c24
1 files changed, 22 insertions, 2 deletions
diff --git a/drivers/net/macb.c b/drivers/net/macb.c
index c4ab9ef..df1e606 100644
--- a/drivers/net/macb.c
+++ b/drivers/net/macb.c
@@ -69,7 +69,7 @@ struct macb_device {
int phy_addr;
- struct clk *pclk;
+ struct clk *pclk, *hclk, *txclk, *rxclk;
const struct device_d *dev;
struct eth_device netdev;
@@ -653,7 +653,7 @@ static int macb_probe(struct device_d *dev)
struct resource *iores;
struct eth_device *edev;
struct macb_device *macb;
- const char *pclk_name;
+ const char *pclk_name, *hclk_name;
u32 ncfgr;
macb = xzalloc(sizeof(*macb));
@@ -689,6 +689,7 @@ static int macb_probe(struct device_d *dev)
macb->phy_addr = pdata->phy_addr;
macb->phy_flags = pdata->phy_flags;
pclk_name = "macb_clk";
+ hclk_name = NULL;
} else if (IS_ENABLED(CONFIG_OFDEVICE) && dev->device_node) {
int ret;
struct device_node *mdiobus;
@@ -705,6 +706,7 @@ static int macb_probe(struct device_d *dev)
macb->phy_addr = -1;
pclk_name = "pclk";
+ hclk_name = "hclk";
} else {
dev_err(dev, "macb: no platform_data\n");
return -ENODEV;
@@ -727,6 +729,24 @@ static int macb_probe(struct device_d *dev)
clk_enable(macb->pclk);
+ if (hclk_name) {
+ macb->hclk = clk_get(dev, pclk_name);
+ if (IS_ERR(macb->pclk)) {
+ dev_err(dev, "no hclk\n");
+ return PTR_ERR(macb->hclk);
+ }
+
+ clk_enable(macb->hclk);
+ }
+
+ macb->txclk = clk_get(dev, "tx_clk");
+ if (!IS_ERR(macb->txclk))
+ clk_enable(macb->txclk);
+
+ macb->rxclk = clk_get(dev, "rx_clk");
+ if (!IS_ERR(macb->rxclk))
+ clk_enable(macb->rxclk);
+
macb->is_gem = read_is_gem(macb);
if (macb_is_gem(macb))