fs_enet: MDIO on GPIO support
Port the fs_enet driver to support the MDIO on GPIO driver for PHY access in addition to the mii-bitbang driver. Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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@ -43,6 +43,7 @@
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#include <asm/uaccess.h>
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#ifdef CONFIG_PPC_CPM_NEW_BINDING
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#include <linux/of_gpio.h>
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#include <asm/of_platform.h>
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#endif
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@ -1172,8 +1173,7 @@ static int __devinit find_phy(struct device_node *np,
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struct fs_platform_info *fpi)
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{
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struct device_node *phynode, *mdionode;
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struct resource res;
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int ret = 0, len;
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int ret = 0, len, bus_id;
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const u32 *data;
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data = of_get_property(np, "fixed-link", NULL);
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@ -1190,19 +1190,28 @@ static int __devinit find_phy(struct device_node *np,
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if (!phynode)
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return -EINVAL;
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mdionode = of_get_parent(phynode);
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if (!mdionode)
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goto out_put_phy;
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ret = of_address_to_resource(mdionode, 0, &res);
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if (ret)
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goto out_put_mdio;
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data = of_get_property(phynode, "reg", &len);
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if (!data || len != 4)
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goto out_put_mdio;
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if (!data || len != 4) {
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ret = -EINVAL;
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goto out_put_phy;
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}
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snprintf(fpi->bus_id, 16, "%x:%02x", res.start, *data);
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mdionode = of_get_parent(phynode);
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if (!mdionode) {
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ret = -EINVAL;
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goto out_put_phy;
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}
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bus_id = of_get_gpio(mdionode, 0);
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if (bus_id < 0) {
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struct resource res;
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ret = of_address_to_resource(mdionode, 0, &res);
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if (ret)
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goto out_put_mdio;
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bus_id = res.start;
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}
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snprintf(fpi->bus_id, 16, "%x:%02x", bus_id, *data);
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out_put_mdio:
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of_node_put(mdionode);
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