1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2018-2019
4 * NVIDIA Corporation <www.nvidia.com>
5 *
6 */
7
8 #include <common.h>
9 #include <fdtdec.h>
10 #include <i2c.h>
11 #include <linux/bitops.h>
12 #include <linux/libfdt.h>
13 #include <pca953x.h>
14 #include <asm/arch-tegra/cboot.h>
15 #include <asm/arch/gpio.h>
16 #include <asm/arch/pinmux.h>
17 #include "../p2571/max77620_init.h"
18
pin_mux_mmc(void)19 void pin_mux_mmc(void)
20 {
21 struct udevice *dev;
22 uchar val;
23 int ret;
24
25 /* Turn on MAX77620 LDO2 to 3.3V for SD card power */
26 debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
27 ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
28 if (ret) {
29 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
30 return;
31 }
32 /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
33 val = 0xF2;
34 ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1);
35 if (ret)
36 printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
37
38 /* Disable LDO4 discharge */
39 ret = dm_i2c_read(dev, MAX77620_CNFG2_L4_REG, &val, 1);
40 if (ret) {
41 printf("i2c_read 0 0x3c 0x2c failed: %d\n", ret);
42 } else {
43 val &= ~BIT(1); /* ADE */
44 ret = dm_i2c_write(dev, MAX77620_CNFG2_L4_REG, &val, 1);
45 if (ret)
46 printf("i2c_write 0 0x3c 0x2c failed: %d\n", ret);
47 }
48
49 /* Set MBLPD */
50 ret = dm_i2c_read(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
51 if (ret) {
52 printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
53 } else {
54 val |= BIT(6); /* MBLPD */
55 ret = dm_i2c_write(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
56 if (ret)
57 printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
58 }
59 }
60
61 #ifdef CONFIG_PCI_TEGRA
tegra_pcie_board_init(void)62 int tegra_pcie_board_init(void)
63 {
64 struct udevice *dev;
65 uchar val;
66 int ret;
67
68 /* Turn on MAX77620 LDO1 to 1.05V for PEX power */
69 debug("%s: Set LDO1 for PEX power to 1.05V\n", __func__);
70 ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
71 if (ret) {
72 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
73 return -1;
74 }
75 /* 0xCA for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
76 val = 0xCA;
77 ret = dm_i2c_write(dev, MAX77620_CNFG1_L1_REG, &val, 1);
78 if (ret)
79 printf("i2c_write 0 0x3c 0x25 failed: %d\n", ret);
80
81 return 0;
82 }
83 #endif /* PCI */
84
ft_mac_address_setup(void * fdt)85 static void ft_mac_address_setup(void *fdt)
86 {
87 const void *cboot_fdt = (const void *)cboot_boot_x0;
88 uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
89 const char *path;
90 int offset, err;
91
92 err = cboot_get_ethaddr(cboot_fdt, local_mac);
93 if (err < 0)
94 memset(local_mac, 0, ETH_ALEN);
95
96 path = fdt_get_alias(fdt, "ethernet");
97 if (!path)
98 return;
99
100 debug("ethernet alias found: %s\n", path);
101
102 offset = fdt_path_offset(fdt, path);
103 if (offset < 0) {
104 printf("ethernet alias points to absent node %s\n", path);
105 return;
106 }
107
108 if (is_valid_ethaddr(local_mac)) {
109 err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
110 ETH_ALEN);
111 if (!err)
112 debug("Local MAC address set: %pM\n", local_mac);
113 }
114
115 if (eth_env_get_enetaddr("ethaddr", mac)) {
116 if (memcmp(local_mac, mac, ETH_ALEN) != 0) {
117 err = fdt_setprop(fdt, offset, "mac-address", mac,
118 ETH_ALEN);
119 if (!err)
120 debug("MAC address set: %pM\n", mac);
121 }
122 }
123 }
124
ft_copy_carveout(void * dst,const void * src,const char * node)125 static int ft_copy_carveout(void *dst, const void *src, const char *node)
126 {
127 struct fdt_memory fb;
128 int err;
129
130 err = fdtdec_get_carveout(src, node, "memory-region", 0, &fb);
131 if (err < 0) {
132 if (err != -FDT_ERR_NOTFOUND)
133 printf("failed to get carveout for %s: %d\n", node,
134 err);
135
136 return err;
137 }
138
139 err = fdtdec_set_carveout(dst, node, "memory-region", 0, "framebuffer",
140 &fb);
141 if (err < 0) {
142 printf("failed to set carveout for %s: %d\n", node, err);
143 return err;
144 }
145
146 return 0;
147 }
148
ft_carveout_setup(void * fdt)149 static void ft_carveout_setup(void *fdt)
150 {
151 const void *cboot_fdt = (const void *)cboot_boot_x0;
152 static const char * const nodes[] = {
153 "/host1x@50000000/dc@54200000",
154 "/host1x@50000000/dc@54240000",
155 };
156 unsigned int i;
157 int err;
158
159 for (i = 0; i < ARRAY_SIZE(nodes); i++) {
160 printf("copying carveout for %s...\n", nodes[i]);
161
162 err = ft_copy_carveout(fdt, cboot_fdt, nodes[i]);
163 if (err < 0) {
164 if (err != -FDT_ERR_NOTFOUND)
165 printf("failed to copy carveout for %s: %d\n",
166 nodes[i], err);
167
168 continue;
169 }
170 }
171 }
172
ft_board_setup(void * fdt,struct bd_info * bd)173 int ft_board_setup(void *fdt, struct bd_info *bd)
174 {
175 ft_mac_address_setup(fdt);
176 ft_carveout_setup(fdt);
177
178 return 0;
179 }
180