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net: macb: Add the clock support 

Due to introducing the at91 clock driver, add the clock support.

Signed-off-by: Wenyou Yang <wenyou.yang@atmel.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Wenyou Yang 2016-11-02 10:06:56 +08:00 committed by Joe Hershberger
parent ebcb40a5a0
commit 577aa3b358
1 changed files with 41 additions and 0 deletions
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41
drivers/net/macb.c
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@ -4,6 +4,7 @@
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <clk.h>
#include <dm.h>
/*
@ -112,6 +113,7 @@ struct macb_device {
struct mii_dev *bus;
#ifdef CONFIG_DM_ETH
unsigned long pclk_rate;
phy_interface_t phy_interface;
#endif
};
@ -754,7 +756,11 @@ static int _macb_write_hwaddr(struct macb_device *macb, unsigned char *enetaddr)
static u32 macb_mdc_clk_div(int id, struct macb_device *macb)
{
u32 config;
#ifdef CONFIG_DM_ETH
unsigned long macb_hz = macb->pclk_rate;
#else
unsigned long macb_hz = get_macb_pclk_rate(id);
#endif
if (macb_hz < 20000000)
config = MACB_BF(CLK, MACB_CLK_DIV8);
@ -771,7 +777,12 @@ static u32 macb_mdc_clk_div(int id, struct macb_device *macb)
static u32 gem_mdc_clk_div(int id, struct macb_device *macb)
{
u32 config;
#ifdef CONFIG_DM_ETH
unsigned long macb_hz = macb->pclk_rate;
#else
unsigned long macb_hz = get_macb_pclk_rate(id);
#endif
if (macb_hz < 20000000)
config = GEM_BF(CLK, GEM_CLK_DIV8);
@ -991,6 +1002,30 @@ static const struct eth_ops macb_eth_ops = {
.write_hwaddr = macb_write_hwaddr,
};
static int macb_enable_clk(struct udevice *dev)
{
struct macb_device *macb = dev_get_priv(dev);
struct clk clk;
ulong clk_rate;
int ret;
ret = clk_get_by_index(dev, 0, &clk);
if (ret)
return -EINVAL;
ret = clk_enable(&clk);
if (ret)
return ret;
clk_rate = clk_get_rate(&clk);
if (!clk_rate)
return -EINVAL;
macb->pclk_rate = clk_rate;
return 0;
}
static int macb_eth_probe(struct udevice *dev)
{
struct eth_pdata *pdata = dev_get_platdata(dev);
@ -998,6 +1033,7 @@ static int macb_eth_probe(struct udevice *dev)
#ifdef CONFIG_DM_ETH
const char *phy_mode;
int ret;
phy_mode = fdt_getprop(gd->fdt_blob, dev->of_offset, "phy-mode", NULL);
if (phy_mode)
@ -1010,7 +1046,12 @@ static int macb_eth_probe(struct udevice *dev)
macb->regs = (void *)pdata->iobase;
ret = macb_enable_clk(dev);
if (ret)
return ret;
_macb_eth_initialize(macb);
#if defined(CONFIG_CMD_MII) || defined(CONFIG_PHYLIB)
int retval;
struct mii_dev *mdiodev = mdio_alloc();