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net: ravb: Add clock handling support

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Add support for enabling and disabling the clock using the clock
framework based on the content of OF instead of doing it manually
in the board file.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Joe Hershberger <joe.hershberger@ni.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
This commit is contained in:
Marek Vasut 2017-07-21 23:20:35 +02:00 committed by Nobuhiro Iwamatsu
parent e821a7bdb1
commit 1fea9e25fa
1 changed files with 19 additions and 2 deletions
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21
drivers/net/ravb.c
View file

@ -10,6 +10,7 @@
*/
#include <common.h>
#include <clk.h>
#include <dm.h>
#include <errno.h>
#include <miiphy.h>
@ -120,6 +121,7 @@ struct ravb_priv {
struct phy_device *phydev;
struct mii_dev *bus;
void __iomem *iobase;
struct clk clk;
};
static inline void ravb_flush_dcache(u32 addr, u32 len)
@ -432,27 +434,38 @@ int ravb_start(struct udevice *dev)
struct ravb_priv *eth = dev_get_priv(dev);
int ret;
ret = ravb_reset(dev);
ret = clk_enable(&eth->clk);
if (ret)
return ret;
ret = ravb_reset(dev);
if (ret)
goto err;
ravb_base_desc_init(eth);
ravb_tx_desc_init(eth);
ravb_rx_desc_init(eth);
ret = ravb_config(dev);
if (ret)
return ret;
goto err;
/* Setting the control will start the AVB-DMAC process. */
writel(CCC_OPC_OPERATION, eth->iobase + RAVB_REG_CCC);
return 0;
err:
clk_disable(&eth->clk);
return ret;
}
static void ravb_stop(struct udevice *dev)
{
struct ravb_priv *eth = dev_get_priv(dev);
ravb_reset(dev);
clk_disable(&eth->clk);
}
static int ravb_probe(struct udevice *dev)
@ -466,6 +479,10 @@ static int ravb_probe(struct udevice *dev)
iobase = map_physmem(pdata->iobase, 0x1000, MAP_NOCACHE);
eth->iobase = iobase;
ret = clk_get_by_index(dev, 0, &eth->clk);
if (ret < 0)
goto err_mdio_alloc;
mdiodev = mdio_alloc();
if (!mdiodev) {
ret = -ENOMEM;