drivers/net/atl1e: Add driver
A shortcoming of this driver is that if multiple devices with the same PCI ID are present and don't have an eeprom, they would all get the same macadress set. The r8168 driver deals with such cases so it should be easy to implement if needed. Change-Id: I5c32df00e25453c350a45e7f1ee6834b89c4289f Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/28265 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
This commit is contained in:
Arthur Heymans
Felix Held
parent
1541256f22
commit
7f922b0f6a
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@ -29,3 +29,19 @@ config RT8168_SET_LED_MODE
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Please refer to RTL811x datasheet section 7.2 Customizable LED
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Configuration for details. With this flag enabled, the
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customized_leds variable will be read from devicetree setting.
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config ATHEROS_ATL1E_SETMAC
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bool
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help
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This sets the MAC address on boards featuring the atheros 1968:1026
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NIC which lack an eeprom to store it.
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config ATHEROS_ATL1E_MACADDRESS
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string "Atheros AR8121/AR8113/AR8114 mac address"
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depends on ATHEROS_ATL1E_SETMAC
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default "90:e6:ba:24:f9:d2"
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help
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This is a string to set the mac address on an Atheros atl1e card.
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It must be in the form of "xx:xx:xx:xx:xx:xx", where x is a
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hexadecimal number for it to be valid. Failing to do so will
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result in the default MAC address being used.
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@ -1,6 +1,7 @@
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romstage-$(CONFIG_CONSOLE_NE2K) += ne2k.c
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ramstage-$(CONFIG_CONSOLE_NE2K) += ne2k.c
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ramstage-$(CONFIG_REALTEK_8168_RESET) += r8168.c
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ramstage-$(CONFIG_ATHEROS_ATL1E_SETMAC) += atl1e.c
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ifneq ($(CONFIG_REALTEK_8168_MACADDRESS),"")
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$(obj)/rt8168-macaddress: $(DOTCONFIG)
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@ -11,3 +12,13 @@ cbfs-files-$(CONFIG_REALTEK_8168_RESET) += rt8168-macaddress
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rt8168-macaddress-file := $(obj)/rt8168-macaddress
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rt8168-macaddress-type := raw
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endif
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ifneq ($(CONFIG_ATHEROS_ATL1E_MACADDRESS),"")
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$(obj)/atl1e-macaddress: $(DOTCONFIG)
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echo " Creating a file holding the atl1e macaddress"
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printf %s $(CONFIG_ATHEROS_ATL1E_MACADDRESS) > $@
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cbfs-files-$(CONFIG_ATHEROS_ATL1E_SETMAC) += atl1e-macaddress
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atl1e-macaddress-file := $(obj)/atl1e-macaddress
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atl1e-macaddress-type := raw
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endif
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@ -0,0 +1,179 @@
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/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2007 Atheros Corporation. All rights reserved.
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* Copyright (C) 2012 Google Inc.
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* Copyright (C) 2016 Damien Zammit <damien@zamaudio.com>
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* Copyright (C) 2018 Arthur Heymans <arthur@aheymans.xyz>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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/*
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* This driver sets the macaddress of a Atheros AR8121/AR8113/AR8114
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*/
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#include <device/device.h>
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#include <cbfs.h>
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#include <string.h>
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#include <console/console.h>
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#include <device/pci.h>
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#define REG_SPI_FLASH_CTRL 0x200
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#define SPI_FLASH_CTRL_EN_VPD 0x2000
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#define REG_PCIE_CAP_LIST 0x58
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#define REG_MAC_STA_ADDR 0x1488
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static u8 get_hex_digit(const u8 c)
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{
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u8 ret = 0;
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ret = c - '0';
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if (ret > 0x09) {
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ret = c - 'A' + 0x0a;
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if (ret > 0x0f)
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ret = c - 'a' + 0x0a;
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}
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if (ret > 0x0f) {
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printk(BIOS_ERR, "Error: Invalid hex digit found: "
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"%c - 0x%02x\n", (char)c, c);
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ret = 0;
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}
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return ret;
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}
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#define MACLEN 17
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static enum cb_err fetch_mac_string_cbfs(u8 *macstrbuf)
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{
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struct cbfsf fh;
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uint32_t matchraw = CBFS_TYPE_RAW;
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if (!cbfs_boot_locate(&fh, "atl1e-macaddress", &matchraw)) {
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/* check the cbfs for the mac address */
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if (rdev_readat(&fh.data, macstrbuf, 0, MACLEN) != MACLEN) {
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printk(BIOS_ERR, "atl1e: Error reading MAC from CBFS\n");
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return CB_ERR;
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}
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return CB_SUCCESS;
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}
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return CB_ERR;
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}
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static void get_mac_address(u8 *macaddr, const u8 *strbuf)
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{
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size_t offset = 0;
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int i;
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if ((strbuf[2] != ':') || (strbuf[5] != ':') ||
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(strbuf[8] != ':') || (strbuf[11] != ':') ||
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(strbuf[14] != ':')) {
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printk(BIOS_ERR, "atl1e: ignore invalid MAC address in cbfs\n");
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return;
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}
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for (i = 0; i < 6; i++) {
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macaddr[i] = 0;
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macaddr[i] |= get_hex_digit(strbuf[offset]) << 4;
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macaddr[i] |= get_hex_digit(strbuf[offset + 1]);
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offset += 3;
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}
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}
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static void program_mac_address(u32 mem_base)
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{
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u8 macstrbuf[MACLEN] = { 0 };
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/* Default MAC Address of 90:e6:ba:24:f9:d2 */
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u8 mac[6] = { 0x90, 0xe6, 0xba, 0x24, 0xf9, 0xd2 };
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u32 value;
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if (fetch_mac_string_cbfs(macstrbuf) != CB_SUCCESS) {
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printk(BIOS_ERR, "atl1e: Error reading MAC from CBFS,"
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" using default 90:e6:ba:24:f9:d2\n");
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} else {
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get_mac_address(mac, macstrbuf);
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}
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printk(BIOS_DEBUG, "atl1e: Programming MAC Address...");
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value = (mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | (mac[5] << 0);
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write32((void *)mem_base + REG_MAC_STA_ADDR, value);
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value = (mac[0] << 8) | (mac[1] << 0);
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write32((void *)mem_base + REG_MAC_STA_ADDR + 4, value);
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printk(BIOS_DEBUG, "done\n");
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}
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static int atl1e_eeprom_exist(u32 mem_base)
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{
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u32 value = read32((void *)mem_base + REG_SPI_FLASH_CTRL);
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if (value & SPI_FLASH_CTRL_EN_VPD) {
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value &= ~SPI_FLASH_CTRL_EN_VPD;
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write32((void *)mem_base + REG_SPI_FLASH_CTRL, value);
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}
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value = read32((void *)mem_base + REG_PCIE_CAP_LIST);
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return ((value & 0xff00) == 0x6c00) ? 1 : 0;
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}
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static void atl1e_init(struct device *dev)
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{
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/* Get the resource of the NIC mmio */
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struct resource *nic_res = find_resource(dev, PCI_BASE_ADDRESS_0);
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if (nic_res == NULL) {
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printk(BIOS_ERR, "atl1e: resource not found\n");
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return;
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}
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u32 mem_base = nic_res->base;
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if (!mem_base) {
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printk(BIOS_ERR, "atl1e: resource not assigned\n");
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return;
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}
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if (atl1e_eeprom_exist(mem_base)) {
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printk(BIOS_INFO, "atl1e NIC has SPI eeprom, not setting MAC\n");
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return;
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}
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/* Check if the base is invalid */
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if (!mem_base) {
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printk(BIOS_ERR, "atl1e: Error cant find MEM resource\n");
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return;
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}
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/* Enable but do not set bus master */
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pci_write_config16(dev, PCI_COMMAND,
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PCI_COMMAND_MEMORY | PCI_COMMAND_IO);
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/* Program MAC address based on CBFS "macaddress" containing
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* a string AA:BB:CC:DD:EE:FF */
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program_mac_address(mem_base);
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}
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static struct device_operations atl1e_ops = {
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.read_resources = pci_dev_read_resources,
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.set_resources = pci_dev_set_resources,
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.enable_resources = pci_dev_enable_resources,
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.init = atl1e_init,
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.scan_bus = 0,
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};
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static const struct pci_driver atl1e_driver __pci_driver = {
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.ops = &atl1e_ops,
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.vendor = 0x1969,
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.device = 0x1026,
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};
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struct chip_operations drivers_net_ops = {
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CHIP_NAME("Atheros AR8121/AR8113/AR8114")
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};
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@ -28,6 +28,7 @@ config BOARD_SPECIFIC_OPTIONS
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select HAVE_OPTION_TABLE
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select HAVE_CMOS_DEFAULT
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select HAVE_ACPI_RESUME
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select ATHEROS_ATL1E_SETMAC
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config MAINBOARD_DIR
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string
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