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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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2874c5fd28
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation either version 2 of the license or at your option any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
157 lines
3.6 KiB
C
157 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* tsi108/109 device setup code
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*
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* Maintained by Roy Zang < tie-fei.zang@freescale.com >
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*/
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#include <linux/stddef.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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#include <linux/major.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <linux/export.h>
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#include <linux/device.h>
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#include <linux/etherdevice.h>
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#include <linux/platform_device.h>
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#include <linux/of_net.h>
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#include <asm/tsi108.h>
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#include <linux/atomic.h>
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#include <asm/io.h>
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#include <asm/irq.h>
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#include <asm/prom.h>
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#include <mm/mmu_decl.h>
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#undef DEBUG
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#ifdef DEBUG
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#define DBG(fmt...) do { printk(fmt); } while(0)
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#else
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#define DBG(fmt...) do { } while(0)
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#endif
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static phys_addr_t tsi108_csr_base = -1;
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phys_addr_t get_csrbase(void)
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{
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struct device_node *tsi;
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if (tsi108_csr_base != -1)
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return tsi108_csr_base;
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tsi = of_find_node_by_type(NULL, "tsi-bridge");
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if (tsi) {
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unsigned int size;
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const void *prop = of_get_property(tsi, "reg", &size);
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tsi108_csr_base = of_translate_address(tsi, prop);
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of_node_put(tsi);
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}
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return tsi108_csr_base;
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}
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u32 get_vir_csrbase(void)
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{
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return (u32) (ioremap(get_csrbase(), 0x10000));
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}
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EXPORT_SYMBOL(get_csrbase);
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EXPORT_SYMBOL(get_vir_csrbase);
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static int __init tsi108_eth_of_init(void)
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{
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struct device_node *np;
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unsigned int i = 0;
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struct platform_device *tsi_eth_dev;
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struct resource res;
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int ret;
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for_each_compatible_node(np, "network", "tsi108-ethernet") {
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struct resource r[2];
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struct device_node *phy, *mdio;
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hw_info tsi_eth_data;
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const unsigned int *phy_id;
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const void *mac_addr;
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const phandle *ph;
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memset(r, 0, sizeof(r));
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memset(&tsi_eth_data, 0, sizeof(tsi_eth_data));
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ret = of_address_to_resource(np, 0, &r[0]);
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DBG("%s: name:start->end = %s:%pR\n",
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__func__, r[0].name, &r[0]);
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if (ret)
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goto err;
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r[1].name = "tx";
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r[1].start = irq_of_parse_and_map(np, 0);
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r[1].end = irq_of_parse_and_map(np, 0);
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r[1].flags = IORESOURCE_IRQ;
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DBG("%s: name:start->end = %s:%pR\n",
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__func__, r[1].name, &r[1]);
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tsi_eth_dev =
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platform_device_register_simple("tsi-ethernet", i++, &r[0],
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1);
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if (IS_ERR(tsi_eth_dev)) {
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ret = PTR_ERR(tsi_eth_dev);
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goto err;
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}
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mac_addr = of_get_mac_address(np);
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if (!IS_ERR(mac_addr))
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ether_addr_copy(tsi_eth_data.mac_addr, mac_addr);
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ph = of_get_property(np, "mdio-handle", NULL);
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mdio = of_find_node_by_phandle(*ph);
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ret = of_address_to_resource(mdio, 0, &res);
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of_node_put(mdio);
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if (ret)
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goto unreg;
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ph = of_get_property(np, "phy-handle", NULL);
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phy = of_find_node_by_phandle(*ph);
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if (phy == NULL) {
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ret = -ENODEV;
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goto unreg;
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}
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phy_id = of_get_property(phy, "reg", NULL);
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tsi_eth_data.regs = r[0].start;
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tsi_eth_data.phyregs = res.start;
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tsi_eth_data.phy = *phy_id;
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tsi_eth_data.irq_num = irq_of_parse_and_map(np, 0);
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/* Some boards with the TSI108 bridge (e.g. Holly)
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* have a miswiring of the ethernet PHYs which
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* requires a workaround. The special
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* "txc-rxc-delay-disable" property enables this
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* workaround. FIXME: Need to port the tsi108_eth
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* driver itself to phylib and use a non-misleading
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* name for the workaround flag - it's not actually to
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* do with the model of PHY in use */
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if (of_get_property(phy, "txc-rxc-delay-disable", NULL))
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tsi_eth_data.phy_type = TSI108_PHY_BCM54XX;
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of_node_put(phy);
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ret =
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platform_device_add_data(tsi_eth_dev, &tsi_eth_data,
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sizeof(hw_info));
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if (ret)
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goto unreg;
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}
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return 0;
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unreg:
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platform_device_unregister(tsi_eth_dev);
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err:
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of_node_put(np);
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return ret;
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}
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arch_initcall(tsi108_eth_of_init);
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