diff options
| author | Wenyou Yang <wenyou.yang@atmel.com> | 2016-11-02 10:06:56 +0800 |
|---|---|---|
| committer | Joe Hershberger <joe.hershberger@ni.com> | 2017-02-07 10:54:31 -0600 |
| commit | 577aa3b3587193ee078ce83d918604da6ac84dd5 (patch) | |
| tree | 9a6033adf6ca2c98eb6975ca40ff3808cd732085 /drivers/net | |
| parent | ebcb40a5a02adc153db949d59e9df9bf0d89b6ec (diff) | |
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>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/macb.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/net/macb.c b/drivers/net/macb.c index 01527f7fc7..f97b82afdd 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -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(); |