1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2016, NVIDIA CORPORATION
12 #include <linux/libfdt.h>
13 #include <asm/arch-tegra/cboot.h>
14 #include "../p2571/max77620_init.h"
16 void pin_mux_mmc(void)
22 /* Turn on MAX77620 LDO3 to 3.3V for SD card power */
23 debug("%s: Set LDO3 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
24 ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
26 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
29 /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
31 ret = dm_i2c_write(dev, MAX77620_CNFG1_L3_REG, &val, 1);
33 printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
38 #ifdef CONFIG_PCI_TEGRA
39 int tegra_pcie_board_init(void)
45 /* Turn on MAX77620 LDO7 to 1.05V for PEX power */
46 debug("%s: Set LDO7 for PEX power to 1.05V\n", __func__);
47 ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
49 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
52 /* 0xC5 for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
54 ret = dm_i2c_write(dev, MAX77620_CNFG1_L7_REG, &val, 1);
56 printf("i2c_write 0 0x3c 0x31 failed: %d\n", ret);
62 static void ft_mac_address_setup(void *fdt)
64 const void *cboot_fdt = (const void *)cboot_boot_x0;
65 uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
69 err = cboot_get_ethaddr(cboot_fdt, local_mac);
71 memset(local_mac, 0, ETH_ALEN);
73 path = fdt_get_alias(fdt, "ethernet");
77 debug("ethernet alias found: %s\n", path);
79 offset = fdt_path_offset(fdt, path);
81 printf("ethernet alias points to absent node %s\n", path);
85 if (is_valid_ethaddr(local_mac)) {
86 err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
89 debug("Local MAC address set: %pM\n", local_mac);
92 if (eth_env_get_enetaddr("ethaddr", mac)) {
93 if (memcmp(local_mac, mac, ETH_ALEN) != 0) {
94 err = fdt_setprop(fdt, offset, "mac-address", mac,
97 debug("MAC address set: %pM\n", mac);
102 static int ft_copy_carveout(void *dst, const void *src, const char *node)
104 struct fdt_memory fb;
107 err = fdtdec_get_carveout(src, node, "memory-region", 0, &fb);
109 if (err != -FDT_ERR_NOTFOUND)
110 printf("failed to get carveout for %s: %d\n", node,
116 err = fdtdec_set_carveout(dst, node, "memory-region", 0, "framebuffer",
119 printf("failed to set carveout for %s: %d\n", node, err);
126 static void ft_carveout_setup(void *fdt)
128 const void *cboot_fdt = (const void *)cboot_boot_x0;
129 static const char * const nodes[] = {
130 "/host1x@13e00000/display-hub@15200000/display@15200000",
131 "/host1x@13e00000/display-hub@15200000/display@15210000",
132 "/host1x@13e00000/display-hub@15200000/display@15220000",
137 for (i = 0; i < ARRAY_SIZE(nodes); i++) {
138 printf("copying carveout for %s...\n", nodes[i]);
140 err = ft_copy_carveout(fdt, cboot_fdt, nodes[i]);
142 if (err != -FDT_ERR_NOTFOUND)
143 printf("failed to copy carveout for %s: %d\n",
151 int ft_board_setup(void *fdt, bd_t *bd)
153 ft_mac_address_setup(fdt);
154 ft_carveout_setup(fdt);