1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2013-2015
4 * NVIDIA Corporation <www.nvidia.com>
5 */
6
7 #include <common.h>
8 #include <env.h>
9 #include <fdtdec.h>
10 #include <i2c.h>
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"
17
pin_mux_mmc(void)18 void pin_mux_mmc(void)
19 {
20 struct udevice *dev;
21 uchar val;
22 int ret;
23
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);
27 if (ret) {
28 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
29 return;
30 }
31 /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
32 val = 0xF2;
33 ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1);
34 if (ret)
35 printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
36
37 /* Disable LDO4 discharge */
38 ret = dm_i2c_read(dev, MAX77620_CNFG2_L4_REG, &val, 1);
39 if (ret) {
40 printf("i2c_read 0 0x3c 0x2c failed: %d\n", ret);
41 } else {
42 val &= ~BIT(1); /* ADE */
43 ret = dm_i2c_write(dev, MAX77620_CNFG2_L4_REG, &val, 1);
44 if (ret)
45 printf("i2c_write 0 0x3c 0x2c failed: %d\n", ret);
46 }
47
48 /* Set MBLPD */
49 ret = dm_i2c_read(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
50 if (ret) {
51 printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
52 } else {
53 val |= BIT(6); /* MBLPD */
54 ret = dm_i2c_write(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
55 if (ret)
56 printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
57 }
58 }
59
60 /*
61 * Routine: pinmux_init
62 * Description: Do individual peripheral pinmux configs
63 */
pinmux_init(void)64 void pinmux_init(void)
65 {
66 pinmux_clear_tristate_input_clamping();
67
68 gpio_config_table(p2371_2180_gpio_inits,
69 ARRAY_SIZE(p2371_2180_gpio_inits));
70
71 pinmux_config_pingrp_table(p2371_2180_pingrps,
72 ARRAY_SIZE(p2371_2180_pingrps));
73
74 pinmux_config_drvgrp_table(p2371_2180_drvgrps,
75 ARRAY_SIZE(p2371_2180_drvgrps));
76 }
77
78 #ifdef CONFIG_PCI_TEGRA
tegra_pcie_board_init(void)79 int tegra_pcie_board_init(void)
80 {
81 struct udevice *dev;
82 uchar val;
83 int ret;
84
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);
88 if (ret) {
89 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
90 return -1;
91 }
92 /* 0xCA for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
93 val = 0xCA;
94 ret = dm_i2c_write(dev, MAX77620_CNFG1_L1_REG, &val, 1);
95 if (ret)
96 printf("i2c_write 0 0x3c 0x25 failed: %d\n", ret);
97
98 return 0;
99 }
100 #endif /* PCI */
101
ft_mac_address_setup(void * fdt)102 static void ft_mac_address_setup(void *fdt)
103 {
104 const void *cboot_fdt = (const void *)cboot_boot_x0;
105 uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
106 const char *path;
107 int offset, err;
108
109 err = cboot_get_ethaddr(cboot_fdt, local_mac);
110 if (err < 0)
111 memset(local_mac, 0, ETH_ALEN);
112
113 path = fdt_get_alias(fdt, "ethernet");
114 if (!path)
115 return;
116
117 debug("ethernet alias found: %s\n", path);
118
119 offset = fdt_path_offset(fdt, path);
120 if (offset < 0) {
121 printf("ethernet alias points to absent node %s\n", path);
122 return;
123 }
124
125 if (is_valid_ethaddr(local_mac)) {
126 err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
127 ETH_ALEN);
128 if (!err)
129 debug("Local MAC address set: %pM\n", local_mac);
130 }
131
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,
135 ETH_ALEN);
136 if (!err)
137 debug("MAC address set: %pM\n", mac);
138 }
139 }
140 }
141
ft_copy_carveout(void * dst,const void * src,const char * node)142 static int ft_copy_carveout(void *dst, const void *src, const char *node)
143 {
144 struct fdt_memory fb;
145 int err;
146
147 err = fdtdec_get_carveout(src, node, "memory-region", 0, &fb);
148 if (err < 0) {
149 if (err != -FDT_ERR_NOTFOUND)
150 printf("failed to get carveout for %s: %d\n", node,
151 err);
152
153 return err;
154 }
155
156 err = fdtdec_set_carveout(dst, node, "memory-region", 0, "framebuffer",
157 &fb);
158 if (err < 0) {
159 printf("failed to set carveout for %s: %d\n", node, err);
160 return err;
161 }
162
163 return 0;
164 }
165
ft_carveout_setup(void * fdt)166 static void ft_carveout_setup(void *fdt)
167 {
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",
172 };
173 unsigned int i;
174 int err;
175
176 for (i = 0; i < ARRAY_SIZE(nodes); i++) {
177 err = ft_copy_carveout(fdt, cboot_fdt, nodes[i]);
178 if (err < 0) {
179 if (err != -FDT_ERR_NOTFOUND)
180 printf("failed to copy carveout for %s: %d\n",
181 nodes[i], err);
182 continue;
183 }
184 }
185 }
186
ft_board_setup(void * fdt,bd_t * bd)187 int ft_board_setup(void *fdt, bd_t *bd)
188 {
189 ft_mac_address_setup(fdt);
190 ft_carveout_setup(fdt);
191
192 return 0;
193 }
194