board/nvidia/p2771-0000/p2771-0000.c

   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 <net.h>
  11 #include <linux/libfdt.h>
  12 #include <asm/arch-tegra/cboot.h>
  13 #include "../p2571/max77620_init.h"
  14
  15 void pin_mux_mmc(void)
  16 {
  17         struct udevice *dev;
  18         uchar val;
  19         int ret;
  20
  21         /* Turn on MAX77620 LDO3 to 3.3V for SD card power */
  22         debug("%s: Set LDO3 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
  23         ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
  24         if (ret) {
  25                 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
  26                 return;
  27         }
  28         /* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
  29         val = 0xF2;
  30         ret = dm_i2c_write(dev, MAX77620_CNFG1_L3_REG, &val, 1);
  31         if (ret) {
  32                 printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
  33                 return;
  34         }
  35 }
  36
  37 #ifdef CONFIG_PCI_TEGRA
  38 int tegra_pcie_board_init(void)
  39 {
  40         struct udevice *dev;
  41         uchar val;
  42         int ret;
  43
  44         /* Turn on MAX77620 LDO7 to 1.05V for PEX power */
  45         debug("%s: Set LDO7 for PEX power to 1.05V\n", __func__);
  46         ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
  47         if (ret) {
  48                 printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
  49                 return -1;
  50         }
  51         /* 0xC5 for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
  52         val = 0xC5;
  53         ret = dm_i2c_write(dev, MAX77620_CNFG1_L7_REG, &val, 1);
  54         if (ret)
  55                 printf("i2c_write 0 0x3c 0x31 failed: %d\n", ret);
  56
  57         return 0;
  58 }
  59 #endif
  60
  61 static void ft_mac_address_setup(void *fdt)
  62 {
  63         const void *cboot_fdt = (const void *)cboot_boot_x0;
  64         uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
  65         const char *path;
  66         int offset, err;
  67
  68         err = cboot_get_ethaddr(cboot_fdt, local_mac);
  69         if (err < 0)
  70                 memset(local_mac, 0, ETH_ALEN);
  71
  72         path = fdt_get_alias(fdt, "ethernet");
  73         if (!path)
  74                 return;
  75
  76         debug("ethernet alias found: %s\n", path);
  77
  78         offset = fdt_path_offset(fdt, path);
  79         if (offset < 0) {
  80                 printf("ethernet alias points to absent node %s\n", path);
  81                 return;
  82         }
  83
  84         if (is_valid_ethaddr(local_mac)) {
  85                 err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
  86                                   ETH_ALEN);
  87                 if (!err)
  88                         debug("Local MAC address set: %pM\n", local_mac);
  89         }
  90
  91         if (eth_env_get_enetaddr("ethaddr", mac)) {
  92                 if (memcmp(local_mac, mac, ETH_ALEN) != 0) {
  93                         err = fdt_setprop(fdt, offset, "mac-address", mac,
  94                                           ETH_ALEN);
  95                         if (!err)
  96                                 debug("MAC address set: %pM\n", mac);
  97                 }
  98         }
  99 }
 100
 101 static int ft_copy_carveout(void *dst, const void *src, const char *node)
 102 {
 103         struct fdt_memory fb;
 104         int err;
 105
 106         err = fdtdec_get_carveout(src, node, "memory-region", 0, &fb);
 107         if (err < 0) {
 108                 if (err != -FDT_ERR_NOTFOUND)
 109                         printf("failed to get carveout for %s: %d\n", node,
 110                                err);
 111
 112                 return err;
 113         }
 114
 115         err = fdtdec_set_carveout(dst, node, "memory-region", 0, "framebuffer",
 116                                   &fb);
 117         if (err < 0) {
 118                 printf("failed to set carveout for %s: %d\n", node, err);
 119                 return err;
 120         }
 121
 122         return 0;
 123 }
 124
 125 static void ft_carveout_setup(void *fdt)
 126 {
 127         const void *cboot_fdt = (const void *)cboot_boot_x0;
 128         static const char * const nodes[] = {
 129                 "/host1x@13e00000/display-hub@15200000/display@15200000",
 130                 "/host1x@13e00000/display-hub@15200000/display@15210000",
 131                 "/host1x@13e00000/display-hub@15200000/display@15220000",
 132         };
 133         unsigned int i;
 134         int err;
 135
 136         for (i = 0; i < ARRAY_SIZE(nodes); i++) {
 137                 printf("copying carveout for %s...\n", nodes[i]);
 138
 139                 err = ft_copy_carveout(fdt, cboot_fdt, nodes[i]);
 140                 if (err < 0) {
 141                         if (err != -FDT_ERR_NOTFOUND)
 142                                 printf("failed to copy carveout for %s: %d\n",
 143                                        nodes[i], err);
 144
 145                         continue;
 146                 }
 147         }
 148 }
 149
 150 int ft_board_setup(void *fdt, bd_t *bd)
 151 {
 152         ft_mac_address_setup(fdt);
 153         ft_carveout_setup(fdt);
 154
 155         return 0;
 156 }