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-rw-r--r--drivers/net/ethernet/freescale/fec.c35
-rw-r--r--drivers/net/ethernet/marvell/mv643xx_eth.c42
2 files changed, 54 insertions, 23 deletions
diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c
index 8f2cf8c09e2d..ff7f4c5115a1 100644
--- a/drivers/net/ethernet/freescale/fec.c
+++ b/drivers/net/ethernet/freescale/fec.c
@@ -207,7 +207,8 @@ struct fec_enet_private {
struct net_device *netdev;
- struct clk *clk;
+ struct clk *clk_ipg;
+ struct clk *clk_ahb;
/* The saved address of a sent-in-place packet/buffer, for skfree(). */
unsigned char *tx_bounce[TX_RING_SIZE];
@@ -1065,7 +1066,7 @@ static int fec_enet_mii_init(struct platform_device *pdev)
* Reference Manual has an error on this, and gets fixed on i.MX6Q
* document.
*/
- fep->phy_speed = DIV_ROUND_UP(clk_get_rate(fep->clk), 5000000);
+ fep->phy_speed = DIV_ROUND_UP(clk_get_rate(fep->clk_ahb), 5000000);
if (id_entry->driver_data & FEC_QUIRK_ENET_MAC)
fep->phy_speed--;
fep->phy_speed <<= 1;
@@ -1618,12 +1619,20 @@ fec_probe(struct platform_device *pdev)
goto failed_pin;
}
- fep->clk = clk_get(&pdev->dev, NULL);
- if (IS_ERR(fep->clk)) {
- ret = PTR_ERR(fep->clk);
+ fep->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
+ if (IS_ERR(fep->clk_ipg)) {
+ ret = PTR_ERR(fep->clk_ipg);
goto failed_clk;
}
- clk_prepare_enable(fep->clk);
+
+ fep->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
+ if (IS_ERR(fep->clk_ahb)) {
+ ret = PTR_ERR(fep->clk_ahb);
+ goto failed_clk;
+ }
+
+ clk_prepare_enable(fep->clk_ahb);
+ clk_prepare_enable(fep->clk_ipg);
ret = fec_enet_init(ndev);
if (ret)
@@ -1646,8 +1655,8 @@ failed_register:
fec_enet_mii_remove(fep);
failed_mii_init:
failed_init:
- clk_disable_unprepare(fep->clk);
- clk_put(fep->clk);
+ clk_disable_unprepare(fep->clk_ahb);
+ clk_disable_unprepare(fep->clk_ipg);
failed_pin:
failed_clk:
for (i = 0; i < FEC_IRQ_NUM; i++) {
@@ -1680,8 +1689,8 @@ fec_drv_remove(struct platform_device *pdev)
if (irq > 0)
free_irq(irq, ndev);
}
- clk_disable_unprepare(fep->clk);
- clk_put(fep->clk);
+ clk_disable_unprepare(fep->clk_ahb);
+ clk_disable_unprepare(fep->clk_ipg);
iounmap(fep->hwp);
free_netdev(ndev);
@@ -1705,7 +1714,8 @@ fec_suspend(struct device *dev)
fec_stop(ndev);
netif_device_detach(ndev);
}
- clk_disable_unprepare(fep->clk);
+ clk_disable_unprepare(fep->clk_ahb);
+ clk_disable_unprepare(fep->clk_ipg);
return 0;
}
@@ -1716,7 +1726,8 @@ fec_resume(struct device *dev)
struct net_device *ndev = dev_get_drvdata(dev);
struct fec_enet_private *fep = netdev_priv(ndev);
- clk_prepare_enable(fep->clk);
+ clk_prepare_enable(fep->clk_ahb);
+ clk_prepare_enable(fep->clk_ipg);
if (netif_running(ndev)) {
fec_restart(ndev, fep->full_duplex);
netif_device_attach(ndev);
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index c8950da60e6b..04d901d0ff63 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -57,6 +57,7 @@
#include <linux/types.h>
#include <linux/inet_lro.h>
#include <linux/slab.h>
+#include <linux/clk.h>
static char mv643xx_eth_driver_name[] = "mv643xx_eth";
static char mv643xx_eth_driver_version[] = "1.4";
@@ -289,10 +290,10 @@ struct mv643xx_eth_shared_private {
/*
* Hardware-specific parameters.
*/
- unsigned int t_clk;
int extended_rx_coal_limit;
int tx_bw_control;
int tx_csum_limit;
+
};
#define TX_BW_CONTROL_ABSENT 0
@@ -431,6 +432,12 @@ struct mv643xx_eth_private {
int tx_desc_sram_size;
int txq_count;
struct tx_queue txq[8];
+
+ /*
+ * Hardware-specific parameters.
+ */
+ struct clk *clk;
+ unsigned int t_clk;
};
@@ -1010,7 +1017,7 @@ static void tx_set_rate(struct mv643xx_eth_private *mp, int rate, int burst)
int mtu;
int bucket_size;
- token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000);
+ token_rate = ((rate / 1000) * 64) / (mp->t_clk / 1000);
if (token_rate > 1023)
token_rate = 1023;
@@ -1042,7 +1049,7 @@ static void txq_set_rate(struct tx_queue *txq, int rate, int burst)
int token_rate;
int bucket_size;
- token_rate = ((rate / 1000) * 64) / (mp->shared->t_clk / 1000);
+ token_rate = ((rate / 1000) * 64) / (mp->t_clk / 1000);
if (token_rate > 1023)
token_rate = 1023;
@@ -1309,7 +1316,7 @@ static unsigned int get_rx_coal(struct mv643xx_eth_private *mp)
temp = (val & 0x003fff00) >> 8;
temp *= 64000000;
- do_div(temp, mp->shared->t_clk);
+ do_div(temp, mp->t_clk);
return (unsigned int)temp;
}
@@ -1319,7 +1326,7 @@ static void set_rx_coal(struct mv643xx_eth_private *mp, unsigned int usec)
u64 temp;
u32 val;
- temp = (u64)usec * mp->shared->t_clk;
+ temp = (u64)usec * mp->t_clk;
temp += 31999999;
do_div(temp, 64000000);
@@ -1345,7 +1352,7 @@ static unsigned int get_tx_coal(struct mv643xx_eth_private *mp)
temp = (rdlp(mp, TX_FIFO_URGENT_THRESHOLD) & 0x3fff0) >> 4;
temp *= 64000000;
- do_div(temp, mp->shared->t_clk);
+ do_div(temp, mp->t_clk);
return (unsigned int)temp;
}
@@ -1354,7 +1361,7 @@ static void set_tx_coal(struct mv643xx_eth_private *mp, unsigned int usec)
{
u64 temp;
- temp = (u64)usec * mp->shared->t_clk;
+ temp = (u64)usec * mp->t_clk;
temp += 31999999;
do_div(temp, 64000000);
@@ -2663,10 +2670,6 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
if (dram)
mv643xx_eth_conf_mbus_windows(msp, dram);
- /*
- * Detect hardware parameters.
- */
- msp->t_clk = (pd != NULL && pd->t_clk != 0) ? pd->t_clk : 133000000;
msp->tx_csum_limit = (pd != NULL && pd->tx_csum_limit) ?
pd->tx_csum_limit : 9 * 1024;
infer_hw_params(msp);
@@ -2891,6 +2894,18 @@ static int mv643xx_eth_probe(struct platform_device *pdev)
mp->dev = dev;
+ /*
+ * Get the clk rate, if there is one, otherwise use the default.
+ */
+ mp->clk = clk_get(&pdev->dev, (pdev->id ? "1" : "0"));
+ if (!IS_ERR(mp->clk)) {
+ clk_prepare_enable(mp->clk);
+ mp->t_clk = clk_get_rate(mp->clk);
+ } else {
+ mp->t_clk = 133000000;
+ printk(KERN_WARNING "Unable to get clock");
+ }
+
set_params(mp, pd);
netif_set_real_num_tx_queues(dev, mp->txq_count);
netif_set_real_num_rx_queues(dev, mp->rxq_count);
@@ -2979,6 +2994,11 @@ static int mv643xx_eth_remove(struct platform_device *pdev)
if (mp->phy != NULL)
phy_detach(mp->phy);
cancel_work_sync(&mp->tx_timeout_task);
+
+ if (!IS_ERR(mp->clk)) {
+ clk_disable_unprepare(mp->clk);
+ clk_put(mp->clk);
+ }
free_netdev(mp->dev);
platform_set_drvdata(pdev, NULL);
generated by cgit v1.2.3 (git 2.0.4) at 2024-11-02 07:17:35 +0000