LXR uboot/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 <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
  16void 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
  39int 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
  62static 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
 102static 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
 126static 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
 151int 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