1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (c) 2016, NVIDIA CORPORATION
4 */
5
6 #include <common.h>
7 #include <env.h>
8 #include <fdtdec.h>
9 #include <i2c.h>
10 #include <log.h>
11 #include <net.h>
12 #include <linux/libfdt.h>
13 #include <asm/arch-tegra/cboot.h>
14 #include "../p2571/max77620_init.h"
15
pin_mux_mmc(void)16 void pin_mux_mmc(void)
17 {
18 struct udevice *dev;
19 uchar val;
20 int ret;
21
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);
25 if (ret) {
26 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
27 return;
28 }
29 /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
30 val = 0xF2;
31 ret = dm_i2c_write(dev, MAX77620_CNFG1_L3_REG, &val, 1);
32 if (ret) {
33 printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
34 return;
35 }
36 }
37
38 #ifdef CONFIG_PCI_TEGRA
tegra_pcie_board_init(void)39 int tegra_pcie_board_init(void)
40 {
41 struct udevice *dev;
42 uchar val;
43 int ret;
44
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);
48 if (ret) {
49 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
50 return -1;
51 }
52 /* 0xC5 for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
53 val = 0xC5;
54 ret = dm_i2c_write(dev, MAX77620_CNFG1_L7_REG, &val, 1);
55 if (ret)
56 printf("i2c_write 0 0x3c 0x31 failed: %d\n", ret);
57
58 return 0;
59 }
60 #endif
61
ft_mac_address_setup(void * fdt)62 static void ft_mac_address_setup(void *fdt)
63 {
64 const void *cboot_fdt = (const void *)cboot_boot_x0;
65 uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
66 const char *path;
67 int offset, err;
68
69 err = cboot_get_ethaddr(cboot_fdt, local_mac);
70 if (err < 0)
71 memset(local_mac, 0, ETH_ALEN);
72
73 path = fdt_get_alias(fdt, "ethernet");
74 if (!path)
75 return;
76
77 debug("ethernet alias found: %s\n", path);
78
79 offset = fdt_path_offset(fdt, path);
80 if (offset < 0) {
81 printf("ethernet alias points to absent node %s\n", path);
82 return;
83 }
84
85 if (is_valid_ethaddr(local_mac)) {
86 err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
87 ETH_ALEN);
88 if (!err)
89 debug("Local MAC address set: %pM\n", local_mac);
90 }
91
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,
95 ETH_ALEN);
96 if (!err)
97 debug("MAC address set: %pM\n", mac);
98 }
99 }
100 }
101
ft_copy_carveout(void * dst,const void * src,const char * node)102 static int ft_copy_carveout(void *dst, const void *src, const char *node)
103 {
104 struct fdt_memory fb;
105 int err;
106
107 err = fdtdec_get_carveout(src, node, "memory-region", 0, &fb);
108 if (err < 0) {
109 if (err != -FDT_ERR_NOTFOUND)
110 printf("failed to get carveout for %s: %d\n", node,
111 err);
112
113 return err;
114 }
115
116 err = fdtdec_set_carveout(dst, node, "memory-region", 0, "framebuffer",
117 &fb);
118 if (err < 0) {
119 printf("failed to set carveout for %s: %d\n", node, err);
120 return err;
121 }
122
123 return 0;
124 }
125
ft_carveout_setup(void * fdt)126 static void ft_carveout_setup(void *fdt)
127 {
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",
133 };
134 unsigned int i;
135 int err;
136
137 for (i = 0; i < ARRAY_SIZE(nodes); i++) {
138 printf("copying carveout for %s...\n", nodes[i]);
139
140 err = ft_copy_carveout(fdt, cboot_fdt, nodes[i]);
141 if (err < 0) {
142 if (err != -FDT_ERR_NOTFOUND)
143 printf("failed to copy carveout for %s: %d\n",
144 nodes[i], err);
145
146 continue;
147 }
148 }
149 }
150
ft_board_setup(void * fdt,struct bd_info * bd)151 int ft_board_setup(void *fdt, struct bd_info *bd)
152 {
153 ft_mac_address_setup(fdt);
154 ft_carveout_setup(fdt);
155
156 return 0;
157 }
158