diff options
author | Shawn Guo <shawn.guo@linaro.org> | 2011-07-30 08:26:00 +0000 |
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committer | David S. Miller <davem@davemloft.net> | 2011-08-01 18:01:33 -0700 |
commit | 79f88ee9836d482891ba41b1a553e2baacf31b02 (patch) | |
tree | 216f52c4d2e6e11c90cf05d71a79bb1fea39117b /drivers | |
parent | ebdcc94b4b03212a1f715c39526c9b9578bba0b0 (diff) | |
download | linux-3.10-79f88ee9836d482891ba41b1a553e2baacf31b02.tar.gz linux-3.10-79f88ee9836d482891ba41b1a553e2baacf31b02.tar.bz2 linux-3.10-79f88ee9836d482891ba41b1a553e2baacf31b02.zip |
net/smsc911x: add device tree probe support
It adds device tree probe support for smsc911x driver.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Steve Glendinning <steve.glendinning@smsc.com>
Cc: David S. Miller <davem@davemloft.net>
Reviewed-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/smsc911x.c | 85 |
1 files changed, 74 insertions, 11 deletions
diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c index b9016a30cdc..75c08a55582 100644 --- a/drivers/net/smsc911x.c +++ b/drivers/net/smsc911x.c @@ -53,6 +53,10 @@ #include <linux/phy.h> #include <linux/smsc911x.h> #include <linux/device.h> +#include <linux/of.h> +#include <linux/of_device.h> +#include <linux/of_gpio.h> +#include <linux/of_net.h> #include "smsc911x.h" #define SMSC_CHIPNAME "smsc911x" @@ -2095,8 +2099,58 @@ static const struct smsc911x_ops shifted_smsc911x_ops = { .tx_writefifo = smsc911x_tx_writefifo_shift, }; +#ifdef CONFIG_OF +static int __devinit smsc911x_probe_config_dt( + struct smsc911x_platform_config *config, + struct device_node *np) +{ + const char *mac; + u32 width = 0; + + if (!np) + return -ENODEV; + + config->phy_interface = of_get_phy_mode(np); + + mac = of_get_mac_address(np); + if (mac) + memcpy(config->mac, mac, ETH_ALEN); + + of_property_read_u32(np, "reg-shift", &config->shift); + + of_property_read_u32(np, "reg-io-width", &width); + if (width == 4) + config->flags |= SMSC911X_USE_32BIT; + + if (of_get_property(np, "smsc,irq-active-high", NULL)) + config->irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_HIGH; + + if (of_get_property(np, "smsc,irq-push-pull", NULL)) + config->irq_type = SMSC911X_IRQ_TYPE_PUSH_PULL; + + if (of_get_property(np, "smsc,force-internal-phy", NULL)) + config->flags |= SMSC911X_FORCE_INTERNAL_PHY; + + if (of_get_property(np, "smsc,force-external-phy", NULL)) + config->flags |= SMSC911X_FORCE_EXTERNAL_PHY; + + if (of_get_property(np, "smsc,save-mac-address", NULL)) + config->flags |= SMSC911X_SAVE_MAC_ADDRESS; + + return 0; +} +#else +static inline int smsc911x_probe_config_dt( + struct smsc911x_platform_config *config, + struct device_node *np) +{ + return -ENODEV; +} +#endif /* CONFIG_OF */ + static int __devinit smsc911x_drv_probe(struct platform_device *pdev) { + struct device_node *np = pdev->dev.of_node; struct net_device *dev; struct smsc911x_data *pdata; struct smsc911x_platform_config *config = pdev->dev.platform_data; @@ -2107,13 +2161,6 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev) pr_info("Driver version %s\n", SMSC_DRV_VERSION); - /* platform data specifies irq & dynamic bus configuration */ - if (!pdev->dev.platform_data) { - pr_warn("platform_data not provided\n"); - retval = -ENODEV; - goto out_0; - } - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "smsc911x-memory"); if (!res) @@ -2152,9 +2199,6 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev) irq_flags = irq_res->flags & IRQF_TRIGGER_MASK; pdata->ioaddr = ioremap_nocache(res->start, res_size); - /* copy config parameters across to pdata */ - memcpy(&pdata->config, config, sizeof(pdata->config)); - pdata->dev = dev; pdata->msg_enable = ((1 << debug) - 1); @@ -2164,10 +2208,22 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev) goto out_free_netdev_2; } + retval = smsc911x_probe_config_dt(&pdata->config, np); + if (retval && config) { + /* copy config parameters across to pdata */ + memcpy(&pdata->config, config, sizeof(pdata->config)); + retval = 0; + } + + if (retval) { + SMSC_WARN(pdata, probe, "Error smsc911x config not found"); + goto out_unmap_io_3; + } + /* assume standard, non-shifted, access to HW registers */ pdata->ops = &standard_smsc911x_ops; /* apply the right access if shifting is needed */ - if (config->shift) + if (pdata->config.shift) pdata->ops = &shifted_smsc911x_ops; retval = smsc911x_init(dev); @@ -2314,6 +2370,12 @@ static const struct dev_pm_ops smsc911x_pm_ops = { #define SMSC911X_PM_OPS NULL #endif +static const struct of_device_id smsc911x_dt_ids[] = { + { .compatible = "smsc,lan9115", }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(of, smsc911x_dt_ids); + static struct platform_driver smsc911x_driver = { .probe = smsc911x_drv_probe, .remove = __devexit_p(smsc911x_drv_remove), @@ -2321,6 +2383,7 @@ static struct platform_driver smsc911x_driver = { .name = SMSC_CHIPNAME, .owner = THIS_MODULE, .pm = SMSC911X_PM_OPS, + .of_match_table = smsc911x_dt_ids, }, }; |