diff options
Diffstat (limited to 'resources/libreboot/patch/coreboot/2a6f251f4d8d41d13051ec2c897aea800c07275a/grub/ga-g41m-es2l/004-add-driver-to-reset-nic.patch')
| -rw-r--r-- | resources/libreboot/patch/coreboot/2a6f251f4d8d41d13051ec2c897aea800c07275a/grub/ga-g41m-es2l/004-add-driver-to-reset-nic.patch | 89 |
1 files changed, 71 insertions, 18 deletions
diff --git a/resources/libreboot/patch/coreboot/2a6f251f4d8d41d13051ec2c897aea800c07275a/grub/ga-g41m-es2l/004-add-driver-to-reset-nic.patch b/resources/libreboot/patch/coreboot/2a6f251f4d8d41d13051ec2c897aea800c07275a/grub/ga-g41m-es2l/004-add-driver-to-reset-nic.patch index 279d2f2..7d1d1c5 100644 --- a/resources/libreboot/patch/coreboot/2a6f251f4d8d41d13051ec2c897aea800c07275a/grub/ga-g41m-es2l/004-add-driver-to-reset-nic.patch +++ b/resources/libreboot/patch/coreboot/2a6f251f4d8d41d13051ec2c897aea800c07275a/grub/ga-g41m-es2l/004-add-driver-to-reset-nic.patch @@ -1,7 +1,12 @@ -From 5e99bbbf3140b198b2c4b68e646e7042f76806e3 Mon Sep 17 00:00:00 2001 +From 8f90ec9634e7eb0a385902fe2d74af4ebc33c7c2 Mon Sep 17 00:00:00 2001 From: Damien Zammit <damien@zamaudio.com> Date: Sat, 21 May 2016 02:24:19 +1000 -Subject: [PATCH] drivers/net/r8168: Add driver for 10ec:8168 to reset the NIC +Subject: [PATCH] drivers/net/r8168: Add driver for realtek nic + +One thing that is vital to this patch is the MAC address setting +in case the EEPROM/efuse is unconfigured. +Linux now recognises the default MAC address on GA-G41M-ES2L which +does rely on the default bios settings for the MAC address. Change-Id: I32e070b545b4c6369686a7087b7ff838d00764e3 Signed-off-by: Damien Zammit <damien@zamaudio.com> @@ -28,41 +33,89 @@ index 9b3008d..e435d48 100644 +ramstage-$(CONFIG_REALTEK_8168_RESET) += r8168.c diff --git a/src/drivers/net/r8168.c b/src/drivers/net/r8168.c new file mode 100644 -index 0000000..be5a7b8 +index 0000000..4301693 --- /dev/null +++ b/src/drivers/net/r8168.c -@@ -0,0 +1,46 @@ +@@ -0,0 +1,94 @@ +/* -+ * Copyright (C) 2015 Damien Zammit <damien@zamaudio.com> ++ * This file is part of the coreboot project. ++ * ++ * Copyright (C) 2016 Damien Zammit <damien@zamaudio.com> + * -+ * This driver simply forces the 10ec:8168 device to reset so that it goes -+ * into a proper power state. ++ * 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 forces the 10ec:8168 device to reset so that it goes ++ * into a proper power state, also programs a default MAC address ++ * so that if the EEPROM/efuse is unconfigured it still has a default MAC. + */ + +#include <arch/io.h> +#include <device/device.h> +#include <device/pci.h> -+#include <device/pci_ids.h> +#include <device/pci_ops.h> -+#include <stdlib.h> -+#include <string.h> ++#include <device/pci_def.h> ++#include <delay.h> ++#include <console/console.h> ++ ++#define NIC_TIMEOUT 1000 + -+#define CMD_REG 0x37 ++#define CMD_REG 0x37 ++#define CMD_REG_RESET 0x10 ++ ++#define CFG_9346 0x50 ++#define CFG_9346_LOCK 0x00 ++#define CFG_9346_UNLOCK 0xc0 + +static void r8168_init(struct device *dev) +{ -+ u32 cnt = 0; ++ u32 i; ++ const u8 mac[6] = { 0x00, 0xe0, 0x4c, 0x00, 0xc0, 0xb0 }; + + /* Get the resource of the NIC mmio */ + struct resource *nic_res = find_resource(dev, PCI_BASE_ADDRESS_0); -+ u32 nic_mmio = (u32)res2mmio(nic_res, 0, 0); ++ u16 nic_port = (u16)nic_res->base; ++ ++ /* Set bus master */ ++ pci_write_config16(dev, PCI_COMMAND, PCI_COMMAND_MASTER ++ | PCI_COMMAND_MEMORY | PCI_COMMAND_IO); ++ ++ /* Reset NIC */ ++ printk(BIOS_DEBUG, "r8168: Resetting NIC..."); ++ outb(CMD_REG_RESET, nic_port + CMD_REG); ++ ++ i = 0; ++ /* Poll for reset, with 1s timeout */ ++ while (i < NIC_TIMEOUT && (inb(nic_port + CMD_REG) & CMD_REG_RESET)) { ++ udelay(1000); ++ if (++i >= NIC_TIMEOUT) ++ printk(BIOS_DEBUG, "timeout waiting for nic to reset\n"); ++ } ++ if (i < NIC_TIMEOUT) ++ printk(BIOS_DEBUG, "done\n"); ++ ++ /* Unlock config regs */ ++ outb(CFG_9346_UNLOCK, nic_port + CFG_9346); ++ ++ /* Set MAC address 00:e0:4c:00:c0:b0 ++ * NB: only 4-byte write accesses allowed ++ */ ++ outl(mac[4] | mac[5] << 8, nic_port + 4); ++ inl(nic_port + 4); + -+ /* Reset */ -+ outb(0x10, nic_mmio + CMD_REG); ++ outl(mac[0] | mac[1] << 8 | mac[2] << 16 | mac[3] << 24, nic_port); ++ inl(nic_port); + -+ /* Poll for reset, with timeout */ -+ while (cnt < 1000 && (inb(nic_mmio + CMD_REG) & 0x10)) -+ cnt++; ++ /* Lock config regs */ ++ outb(CFG_9346_LOCK, nic_port + CFG_9346); +} + +static struct device_operations r8168_ops = { |