1 // SPDX-License-Identifier: GPL-2.0+
3 * (C) Copyright 2013-2015
4 * NVIDIA Corporation <www.nvidia.com>
11 #include <linux/libfdt.h>
12 #include <asm/arch/gpio.h>
13 #include <asm/arch/pinmux.h>
14 #include <asm/arch-tegra/cboot.h>
15 #include "../p2571/max77620_init.h"
16 #include "pinmux-config-p2371-2180.h"
18 void pin_mux_mmc(void)
24 /* Turn on MAX77620 LDO2 to 3.3V for SD card power */
25 debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
26 ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
28 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
31 /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
33 ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1);
35 printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
37 /* Disable LDO4 discharge */
38 ret = dm_i2c_read(dev, MAX77620_CNFG2_L4_REG, &val, 1);
40 printf("i2c_read 0 0x3c 0x2c failed: %d\n", ret);
42 val &= ~BIT(1); /* ADE */
43 ret = dm_i2c_write(dev, MAX77620_CNFG2_L4_REG, &val, 1);
45 printf("i2c_write 0 0x3c 0x2c failed: %d\n", ret);
49 ret = dm_i2c_read(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
51 printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
53 val |= BIT(6); /* MBLPD */
54 ret = dm_i2c_write(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
56 printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
61 * Routine: pinmux_init
62 * Description: Do individual peripheral pinmux configs
64 void pinmux_init(void)
66 pinmux_clear_tristate_input_clamping();
68 gpio_config_table(p2371_2180_gpio_inits,
69 ARRAY_SIZE(p2371_2180_gpio_inits));
71 pinmux_config_pingrp_table(p2371_2180_pingrps,
72 ARRAY_SIZE(p2371_2180_pingrps));
74 pinmux_config_drvgrp_table(p2371_2180_drvgrps,
75 ARRAY_SIZE(p2371_2180_drvgrps));
78 #ifdef CONFIG_PCI_TEGRA
79 int tegra_pcie_board_init(void)
85 /* Turn on MAX77620 LDO1 to 1.05V for PEX power */
86 debug("%s: Set LDO1 for PEX power to 1.05V\n", __func__);
87 ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
89 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
92 /* 0xCA for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
94 ret = dm_i2c_write(dev, MAX77620_CNFG1_L1_REG, &val, 1);
96 printf("i2c_write 0 0x3c 0x25 failed: %d\n", ret);
102 static void ft_mac_address_setup(void *fdt)
104 const void *cboot_fdt = (const void *)cboot_boot_x0;
105 uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
109 err = cboot_get_ethaddr(cboot_fdt, local_mac);
111 memset(local_mac, 0, ETH_ALEN);
113 path = fdt_get_alias(fdt, "ethernet");
117 debug("ethernet alias found: %s\n", path);
119 offset = fdt_path_offset(fdt, path);
121 printf("ethernet alias points to absent node %s\n", path);
125 if (is_valid_ethaddr(local_mac)) {
126 err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
129 debug("Local MAC address set: %pM\n", local_mac);
132 if (eth_env_get_enetaddr("ethaddr", mac)) {
133 if (memcmp(local_mac, mac, ETH_ALEN) != 0) {
134 err = fdt_setprop(fdt, offset, "mac-address", mac,
137 debug("MAC address set: %pM\n", mac);
142 static int ft_copy_carveout(void *dst, const void *src, const char *node)
144 struct fdt_memory fb;
147 err = fdtdec_get_carveout(src, node, "memory-region", 0, &fb);
149 if (err != -FDT_ERR_NOTFOUND)
150 printf("failed to get carveout for %s: %d\n", node,
156 err = fdtdec_set_carveout(dst, node, "memory-region", 0, "framebuffer",
159 printf("failed to set carveout for %s: %d\n", node, err);
166 static void ft_carveout_setup(void *fdt)
168 const void *cboot_fdt = (const void *)cboot_boot_x0;
169 static const char * const nodes[] = {
170 "/host1x@50000000/dc@54200000",
171 "/host1x@50000000/dc@54240000",
176 for (i = 0; i < ARRAY_SIZE(nodes); i++) {
177 err = ft_copy_carveout(fdt, cboot_fdt, nodes[i]);
179 if (err != -FDT_ERR_NOTFOUND)
180 printf("failed to copy carveout for %s: %d\n",
187 int ft_board_setup(void *fdt, bd_t *bd)
189 ft_mac_address_setup(fdt);
190 ft_carveout_setup(fdt);