mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-21 18:39:43 +09:00
a930a72742
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>
147 lines
3.5 KiB
C
147 lines
3.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2013-2015
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* NVIDIA Corporation <www.nvidia.com>
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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/gpio.h>
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#include <asm/arch/pinmux.h>
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#include <asm/arch-tegra/cboot.h>
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#include "../p2571/max77620_init.h"
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#include "pinmux-config-p2371-2180.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 LDO2 to 3.3V for SD card power */
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debug("%s: Set LDO2 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_L2_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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/* Disable LDO4 discharge */
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ret = dm_i2c_read(dev, MAX77620_CNFG2_L4_REG, &val, 1);
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if (ret) {
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printf("i2c_read 0 0x3c 0x2c failed: %d\n", ret);
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} else {
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val &= ~BIT(1); /* ADE */
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ret = dm_i2c_write(dev, MAX77620_CNFG2_L4_REG, &val, 1);
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if (ret)
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printf("i2c_write 0 0x3c 0x2c failed: %d\n", ret);
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}
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/* Set MBLPD */
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ret = dm_i2c_read(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
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if (ret) {
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printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
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} else {
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val |= BIT(6); /* MBLPD */
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ret = dm_i2c_write(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
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if (ret)
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printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
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}
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}
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/*
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* Routine: pinmux_init
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* Description: Do individual peripheral pinmux configs
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*/
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void pinmux_init(void)
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{
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pinmux_clear_tristate_input_clamping();
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gpio_config_table(p2371_2180_gpio_inits,
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ARRAY_SIZE(p2371_2180_gpio_inits));
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pinmux_config_pingrp_table(p2371_2180_pingrps,
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ARRAY_SIZE(p2371_2180_pingrps));
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pinmux_config_drvgrp_table(p2371_2180_drvgrps,
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ARRAY_SIZE(p2371_2180_drvgrps));
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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 LDO1 to 1.05V for PEX power */
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debug("%s: Set LDO1 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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/* 0xCA for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
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val = 0xCA;
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ret = dm_i2c_write(dev, MAX77620_CNFG1_L1_REG, &val, 1);
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if (ret)
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printf("i2c_write 0 0x3c 0x25 failed: %d\n", ret);
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return 0;
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}
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#endif /* PCI */
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static void ft_mac_address_setup(void *fdt)
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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;
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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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printf("ethernet alias points to absent node %s\n", path);
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return;
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}
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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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}
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int ft_board_setup(void *fdt, bd_t *bd)
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{
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ft_mac_address_setup(fdt);
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return 0;
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}
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