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