diff options
Diffstat (limited to 'src/drivers')
| -rw-r--r-- | src/drivers/net/Kconfig | 16 | ||||
| -rw-r--r-- | src/drivers/net/Makefile.inc | 11 | ||||
| -rw-r--r-- | src/drivers/net/atl1e.c | 179 |
3 files changed, 206 insertions, 0 deletions
diff --git a/src/drivers/net/Kconfig b/src/drivers/net/Kconfig index bd6f09a61d..92de1ed0e7 100644 --- a/src/drivers/net/Kconfig +++ b/src/drivers/net/Kconfig @@ -29,3 +29,19 @@ config RT8168_SET_LED_MODE Please refer to RTL811x datasheet section 7.2 Customizable LED Configuration for details. With this flag enabled, the customized_leds variable will be read from devicetree setting. + +config ATHEROS_ATL1E_SETMAC + bool + help + This sets the MAC address on boards featuring the atheros 1968:1026 + NIC which lack an eeprom to store it. + +config ATHEROS_ATL1E_MACADDRESS + string "Atheros AR8121/AR8113/AR8114 mac address" + depends on ATHEROS_ATL1E_SETMAC + default "90:e6:ba:24:f9:d2" + help + This is a string to set the mac address on an Atheros atl1e card. + It must be in the form of "xx:xx:xx:xx:xx:xx", where x is a + hexadecimal number for it to be valid. Failing to do so will + result in the default MAC address being used. diff --git a/src/drivers/net/Makefile.inc b/src/drivers/net/Makefile.inc index 20dbe50fb1..33c82118d9 100644 --- a/src/drivers/net/Makefile.inc +++ b/src/drivers/net/Makefile.inc @@ -1,6 +1,7 @@ romstage-$(CONFIG_CONSOLE_NE2K) += ne2k.c ramstage-$(CONFIG_CONSOLE_NE2K) += ne2k.c ramstage-$(CONFIG_REALTEK_8168_RESET) += r8168.c +ramstage-$(CONFIG_ATHEROS_ATL1E_SETMAC) += atl1e.c ifneq ($(CONFIG_REALTEK_8168_MACADDRESS),"") $(obj)/rt8168-macaddress: $(DOTCONFIG) @@ -11,3 +12,13 @@ cbfs-files-$(CONFIG_REALTEK_8168_RESET) += rt8168-macaddress rt8168-macaddress-file := $(obj)/rt8168-macaddress rt8168-macaddress-type := raw endif + +ifneq ($(CONFIG_ATHEROS_ATL1E_MACADDRESS),"") +$(obj)/atl1e-macaddress: $(DOTCONFIG) + echo " Creating a file holding the atl1e macaddress" + printf %s $(CONFIG_ATHEROS_ATL1E_MACADDRESS) > $@ + +cbfs-files-$(CONFIG_ATHEROS_ATL1E_SETMAC) += atl1e-macaddress +atl1e-macaddress-file := $(obj)/atl1e-macaddress +atl1e-macaddress-type := raw +endif diff --git a/src/drivers/net/atl1e.c b/src/drivers/net/atl1e.c new file mode 100644 index 0000000000..7e02e810b0 --- /dev/null +++ b/src/drivers/net/atl1e.c @@ -0,0 +1,179 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007 Atheros Corporation. All rights reserved. + * Copyright (C) 2012 Google Inc. + * Copyright (C) 2016 Damien Zammit <damien@zamaudio.com> + * Copyright (C) 2018 Arthur Heymans <arthur@aheymans.xyz> + * + * 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; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +/* + * This driver sets the macaddress of a Atheros AR8121/AR8113/AR8114 + */ + +#include <device/device.h> +#include <cbfs.h> +#include <string.h> +#include <console/console.h> +#include <device/pci.h> + +#define REG_SPI_FLASH_CTRL 0x200 +#define SPI_FLASH_CTRL_EN_VPD 0x2000 + +#define REG_PCIE_CAP_LIST 0x58 + +#define REG_MAC_STA_ADDR 0x1488 + +static u8 get_hex_digit(const u8 c) +{ + u8 ret = 0; + + ret = c - '0'; + if (ret > 0x09) { + ret = c - 'A' + 0x0a; + if (ret > 0x0f) + ret = c - 'a' + 0x0a; + } + if (ret > 0x0f) { + printk(BIOS_ERR, "Error: Invalid hex digit found: " + "%c - 0x%02x\n", (char)c, c); + ret = 0; + } + return ret; +} + +#define MACLEN 17 + +static enum cb_err fetch_mac_string_cbfs(u8 *macstrbuf) +{ + struct cbfsf fh; + uint32_t matchraw = CBFS_TYPE_RAW; + + if (!cbfs_boot_locate(&fh, "atl1e-macaddress", &matchraw)) { + /* check the cbfs for the mac address */ + if (rdev_readat(&fh.data, macstrbuf, 0, MACLEN) != MACLEN) { + printk(BIOS_ERR, "atl1e: Error reading MAC from CBFS\n"); + return CB_ERR; + } + return CB_SUCCESS; + } + return CB_ERR; +} + +static void get_mac_address(u8 *macaddr, const u8 *strbuf) +{ + size_t offset = 0; + int i; + + if ((strbuf[2] != ':') || (strbuf[5] != ':') || + (strbuf[8] != ':') || (strbuf[11] != ':') || + (strbuf[14] != ':')) { + printk(BIOS_ERR, "atl1e: ignore invalid MAC address in cbfs\n"); + return; + } + + for (i = 0; i < 6; i++) { + macaddr[i] = 0; + macaddr[i] |= get_hex_digit(strbuf[offset]) << 4; + macaddr[i] |= get_hex_digit(strbuf[offset + 1]); + offset += 3; + } +} + +static void program_mac_address(u32 mem_base) +{ + u8 macstrbuf[MACLEN] = { 0 }; + /* Default MAC Address of 90:e6:ba:24:f9:d2 */ + u8 mac[6] = { 0x90, 0xe6, 0xba, 0x24, 0xf9, 0xd2 }; + u32 value; + + if (fetch_mac_string_cbfs(macstrbuf) != CB_SUCCESS) { + printk(BIOS_ERR, "atl1e: Error reading MAC from CBFS," + " using default 90:e6:ba:24:f9:d2\n"); + } else { + get_mac_address(mac, macstrbuf); + } + + printk(BIOS_DEBUG, "atl1e: Programming MAC Address..."); + + value = (mac[2] << 24) | (mac[3] << 16) | (mac[4] << 8) | (mac[5] << 0); + write32((void *)mem_base + REG_MAC_STA_ADDR, value); + value = (mac[0] << 8) | (mac[1] << 0); + write32((void *)mem_base + REG_MAC_STA_ADDR + 4, value); + + printk(BIOS_DEBUG, "done\n"); +} + +static int atl1e_eeprom_exist(u32 mem_base) +{ + u32 value = read32((void *)mem_base + REG_SPI_FLASH_CTRL); + if (value & SPI_FLASH_CTRL_EN_VPD) { + value &= ~SPI_FLASH_CTRL_EN_VPD; + write32((void *)mem_base + REG_SPI_FLASH_CTRL, value); + } + value = read32((void *)mem_base + REG_PCIE_CAP_LIST); + return ((value & 0xff00) == 0x6c00) ? 1 : 0; +} + +static void atl1e_init(struct device *dev) +{ + /* Get the resource of the NIC mmio */ + struct resource *nic_res = find_resource(dev, PCI_BASE_ADDRESS_0); + + if (nic_res == NULL) { + printk(BIOS_ERR, "atl1e: resource not found\n"); + return; + } + + u32 mem_base = nic_res->base; + + if (!mem_base) { + printk(BIOS_ERR, "atl1e: resource not assigned\n"); + return; + } + + if (atl1e_eeprom_exist(mem_base)) { + printk(BIOS_INFO, "atl1e NIC has SPI eeprom, not setting MAC\n"); + return; + } + + /* Check if the base is invalid */ + if (!mem_base) { + printk(BIOS_ERR, "atl1e: Error cant find MEM resource\n"); + return; + } + /* Enable but do not set bus master */ + pci_write_config16(dev, PCI_COMMAND, + PCI_COMMAND_MEMORY | PCI_COMMAND_IO); + + /* Program MAC address based on CBFS "macaddress" containing + * a string AA:BB:CC:DD:EE:FF */ + program_mac_address(mem_base); +} + +static struct device_operations atl1e_ops = { + .read_resources = pci_dev_read_resources, + .set_resources = pci_dev_set_resources, + .enable_resources = pci_dev_enable_resources, + .init = atl1e_init, + .scan_bus = 0, +}; + +static const struct pci_driver atl1e_driver __pci_driver = { + .ops = &atl1e_ops, + .vendor = 0x1969, + .device = 0x1026, +}; + +struct chip_operations drivers_net_ops = { + CHIP_NAME("Atheros AR8121/AR8113/AR8114") +}; |