Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753482Ab1BVU6m (ORCPT ); Tue, 22 Feb 2011 15:58:42 -0500 Received: from mail3.caviumnetworks.com ([12.108.191.235]:14036 "EHLO mail3.caviumnetworks.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753340Ab1BVU6a (ORCPT ); Tue, 22 Feb 2011 15:58:30 -0500 From: David Daney To: linux-mips@linux-mips.org, ralf@linux-mips.org, devicetree-discuss@lists.ozlabs.org, grant.likely@secretlab.ca, linux-kernel@vger.kernel.org Cc: David Daney , "David S. Miller" , netdev@vger.kernel.org Subject: [RFC PATCH 10/10] staging: octeon_ethernet: Convert to use device tree. Date: Tue, 22 Feb 2011 12:57:54 -0800 Message-Id: <1298408274-20856-11-git-send-email-ddaney@caviumnetworks.com> X-Mailer: git-send-email 1.7.2.3 In-Reply-To: <1298408274-20856-1-git-send-email-ddaney@caviumnetworks.com> References: <1298408274-20856-1-git-send-email-ddaney@caviumnetworks.com> X-OriginalArrivalTime: 22 Feb 2011 20:58:30.0082 (UTC) FILETIME=[4233E220:01CBD2D3] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7802 Lines: 248 Get MAC address and PHY connection from the device tree. Signed-off-by: David Daney Cc: "David S. Miller" Cc: netdev@vger.kernel.org --- drivers/staging/octeon/ethernet-mdio.c | 27 +++++---- drivers/staging/octeon/ethernet.c | 101 +++++++++++++++++++----------- drivers/staging/octeon/octeon-ethernet.h | 3 + 3 files changed, 82 insertions(+), 49 deletions(-) diff --git a/drivers/staging/octeon/ethernet-mdio.c b/drivers/staging/octeon/ethernet-mdio.c index 0e5dab7..38a0153 100644 --- a/drivers/staging/octeon/ethernet-mdio.c +++ b/drivers/staging/octeon/ethernet-mdio.c @@ -27,6 +27,7 @@ #include #include #include +#include #include @@ -162,22 +163,24 @@ static void cvm_oct_adjust_link(struct net_device *dev) int cvm_oct_phy_setup_device(struct net_device *dev) { struct octeon_ethernet *priv = netdev_priv(dev); + struct device_node *phy_node; - int phy_addr = cvmx_helper_board_get_mii_address(priv->port); - if (phy_addr != -1) { - char phy_id[20]; + if (!priv->of_node) + return 0; - snprintf(phy_id, sizeof(phy_id), PHY_ID_FMT, "0", phy_addr); + phy_node = of_parse_phandle(priv->of_node, "phy-handle", 0); + if (!phy_node) + return 0; - priv->phydev = phy_connect(dev, phy_id, cvm_oct_adjust_link, 0, - PHY_INTERFACE_MODE_GMII); + priv->phydev = of_phy_connect(dev, phy_node, cvm_oct_adjust_link, 0, + PHY_INTERFACE_MODE_GMII); - if (IS_ERR(priv->phydev)) { - priv->phydev = NULL; - return -1; - } - priv->last_link = 0; - phy_start_aneg(priv->phydev); + if (IS_ERR(priv->phydev)) { + priv->phydev = NULL; + return -1; } + priv->last_link = 0; + phy_start_aneg(priv->phydev); + return 0; } diff --git a/drivers/staging/octeon/ethernet.c b/drivers/staging/octeon/ethernet.c index 042adf7..87f8956 100644 --- a/drivers/staging/octeon/ethernet.c +++ b/drivers/staging/octeon/ethernet.c @@ -31,6 +31,7 @@ #include #include #include +#include #include @@ -112,15 +113,6 @@ int rx_napi_weight = 32; module_param(rx_napi_weight, int, 0444); MODULE_PARM_DESC(rx_napi_weight, "The NAPI WEIGHT parameter."); -/* - * The offset from mac_addr_base that should be used for the next port - * that is configured. By convention, if any mgmt ports exist on the - * chip, they get the first mac addresses, The ports controlled by - * this driver are numbered sequencially following any mgmt addresses - * that may exist. - */ -static unsigned int cvm_oct_mac_addr_offset; - /** * cvm_oct_poll_queue - Workqueue for polling operations. */ @@ -447,26 +439,13 @@ static int cvm_oct_common_set_mac_address(struct net_device *dev, void *addr) int cvm_oct_common_init(struct net_device *dev) { struct octeon_ethernet *priv = netdev_priv(dev); - struct sockaddr sa; - u64 mac = ((u64)(octeon_bootinfo->mac_addr_base[0] & 0xff) << 40) | - ((u64)(octeon_bootinfo->mac_addr_base[1] & 0xff) << 32) | - ((u64)(octeon_bootinfo->mac_addr_base[2] & 0xff) << 24) | - ((u64)(octeon_bootinfo->mac_addr_base[3] & 0xff) << 16) | - ((u64)(octeon_bootinfo->mac_addr_base[4] & 0xff) << 8) | - (u64)(octeon_bootinfo->mac_addr_base[5] & 0xff); - - mac += cvm_oct_mac_addr_offset; - sa.sa_data[0] = (mac >> 40) & 0xff; - sa.sa_data[1] = (mac >> 32) & 0xff; - sa.sa_data[2] = (mac >> 24) & 0xff; - sa.sa_data[3] = (mac >> 16) & 0xff; - sa.sa_data[4] = (mac >> 8) & 0xff; - sa.sa_data[5] = mac & 0xff; - - if (cvm_oct_mac_addr_offset >= octeon_bootinfo->mac_addr_count) - printk(KERN_DEBUG "%s: Using MAC outside of the assigned range:" - " %pM\n", dev->name, sa.sa_data); - cvm_oct_mac_addr_offset++; + struct sockaddr sa = {0}; + + if (priv->of_node) { + const u8 *mac = of_get_mac_address(priv->of_node); + if (mac) + memcpy(sa.sa_data, mac, 6); + } /* * Force the interface to use the POW send if always_use_pow @@ -594,22 +573,68 @@ static const struct net_device_ops cvm_oct_pow_netdev_ops = { extern void octeon_mdiobus_force_mod_depencency(void); +static struct device_node * __init cvm_oct_of_get_child(const struct device_node *parent, + int reg_val) +{ + struct device_node *node = NULL; + int size; + const __be32 *addr; + + for (;;) { + node = of_get_next_child(parent, node); + if (!node) + break; + addr = of_get_property(node, "reg", &size); + if (addr && (be32_to_cpu(*addr) == reg_val)) + break; + } + return node; +} + +static struct device_node * __init cvm_oct_node_for_port(struct device_node *pip, + int interface, int port) +{ + struct device_node *ni, *np; + + ni = cvm_oct_of_get_child(pip, interface); + if (!ni) + return NULL; + + np = cvm_oct_of_get_child(ni, port); + of_node_put(ni); + + return np; +} + static int __init cvm_oct_init_module(void) { int num_interfaces; int interface; int fau = FAU_NUM_PACKET_BUFFERS_TO_FREE; int qos; + struct device_node *aliases; + const char *node_path; + struct device_node *pip; octeon_mdiobus_force_mod_depencency(); pr_notice("cavium-ethernet %s\n", OCTEON_ETHERNET_VERSION); - if (OCTEON_IS_MODEL(OCTEON_CN52XX)) - cvm_oct_mac_addr_offset = 2; /* First two are the mgmt ports. */ - else if (OCTEON_IS_MODEL(OCTEON_CN56XX)) - cvm_oct_mac_addr_offset = 1; /* First one is the mgmt port. */ - else - cvm_oct_mac_addr_offset = 0; + + aliases = of_find_node_by_path("/aliases"); + if (!aliases) { + pr_err("Error: No /aliases node in device tree."); + return -EINVAL; + } + node_path = of_get_property(aliases, "pip", NULL); + if (!node_path) { + pr_err("Error: No /aliases/pip node in device tree."); + return -EINVAL; + } + pip = of_find_node_by_path(node_path); + if (!pip) { + pr_err("Error: No %s in device tree.", node_path); + return -EINVAL; + } cvm_oct_poll_queue = create_singlethread_workqueue("octeon-ethernet"); if (cvm_oct_poll_queue == NULL) { @@ -688,10 +713,11 @@ static int __init cvm_oct_init_module(void) cvmx_helper_interface_get_mode(interface); int num_ports = cvmx_helper_ports_on_interface(interface); int port; + int port_index; - for (port = cvmx_helper_get_ipd_port(interface, 0); + for (port_index = 0, port = cvmx_helper_get_ipd_port(interface, 0); port < cvmx_helper_get_ipd_port(interface, num_ports); - port++) { + port_index++, port++) { struct octeon_ethernet *priv; struct net_device *dev = alloc_etherdev(sizeof(struct octeon_ethernet)); @@ -702,6 +728,7 @@ static int __init cvm_oct_init_module(void) /* Initialize the device private structure. */ priv = netdev_priv(dev); + priv->of_node = cvm_oct_node_for_port(pip, interface, port_index); INIT_DELAYED_WORK(&priv->port_periodic_work, cvm_oct_periodic_worker); diff --git a/drivers/staging/octeon/octeon-ethernet.h b/drivers/staging/octeon/octeon-ethernet.h index d581925..9360e22 100644 --- a/drivers/staging/octeon/octeon-ethernet.h +++ b/drivers/staging/octeon/octeon-ethernet.h @@ -31,6 +31,8 @@ #ifndef OCTEON_ETHERNET_H #define OCTEON_ETHERNET_H +#include + /** * This is the definition of the Ethernet driver's private * driver state stored in netdev_priv(dev). @@ -59,6 +61,7 @@ struct octeon_ethernet { void (*poll) (struct net_device *dev); struct delayed_work port_periodic_work; struct work_struct port_work; /* may be unused. */ + struct device_node *of_node; }; int cvm_oct_free_work(void *work_queue_entry); -- 1.7.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/