mirror of
https://github.com/AsahiLinux/u-boot
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8317189737
Pass the ethernet MAC address to the kernel upon boot. This passes both the local-mac-address property (as passed to U-Boot from cboot) and the currently set MAC address via the mac-address property. The latter will only be set if it is different from the address that was already passed via the local-mac-address property. Signed-off-by: Thierry Reding <treding@nvidia.com> Signed-off-by: Tom Warren <twarren@nvidia.com>
97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) 2016, NVIDIA CORPORATION
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*/
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#include <common.h>
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#include <environment.h>
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#include <i2c.h>
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#include <linux/libfdt.h>
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#include <asm/arch-tegra/cboot.h>
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#include "../p2571/max77620_init.h"
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void pin_mux_mmc(void)
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{
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struct udevice *dev;
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uchar val;
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int ret;
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/* Turn on MAX77620 LDO3 to 3.3V for SD card power */
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debug("%s: Set LDO3 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
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ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
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if (ret) {
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printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
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return;
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}
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/* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
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val = 0xF2;
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ret = dm_i2c_write(dev, MAX77620_CNFG1_L3_REG, &val, 1);
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if (ret) {
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printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
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return;
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}
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}
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#ifdef CONFIG_PCI_TEGRA
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int tegra_pcie_board_init(void)
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{
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struct udevice *dev;
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uchar val;
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int ret;
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/* Turn on MAX77620 LDO7 to 1.05V for PEX power */
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debug("%s: Set LDO7 for PEX power to 1.05V\n", __func__);
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ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
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if (ret) {
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printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
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return -1;
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}
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/* 0xC5 for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
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val = 0xC5;
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ret = dm_i2c_write(dev, MAX77620_CNFG1_L7_REG, &val, 1);
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if (ret)
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printf("i2c_write 0 0x3c 0x31 failed: %d\n", ret);
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return 0;
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}
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#endif
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int ft_board_setup(void *fdt, bd_t *bd)
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{
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const void *cboot_fdt = (const void *)cboot_boot_x0;
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uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
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const char *path;
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int offset, err;
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err = cboot_get_ethaddr(cboot_fdt, local_mac);
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if (err < 0)
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memset(local_mac, 0, ETH_ALEN);
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path = fdt_get_alias(fdt, "ethernet");
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if (!path)
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return 0;
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debug("ethernet alias found: %s\n", path);
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offset = fdt_path_offset(fdt, path);
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if (offset < 0)
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return 0;
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if (is_valid_ethaddr(local_mac)) {
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err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
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ETH_ALEN);
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if (!err)
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debug("Local MAC address set: %pM\n", local_mac);
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}
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if (eth_env_get_enetaddr("ethaddr", mac)) {
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if (memcmp(local_mac, mac, ETH_ALEN) != 0) {
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err = fdt_setprop(fdt, offset, "mac-address", mac,
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ETH_ALEN);
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if (!err)
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debug("MAC address set: %pM\n", mac);
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}
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}
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return 0;
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}
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