p2371-2180.c 4.5 KB

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  1. // SPDX-License-Identifier: GPL-2.0+
  2. /*
  3. * (C) Copyright 2013-2015
  4. * NVIDIA Corporation <www.nvidia.com>
  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/gpio.h>
  12. #include <asm/arch/pinmux.h>
  13. #include <asm/arch-tegra/cboot.h>
  14. #include "../p2571/max77620_init.h"
  15. #include "pinmux-config-p2371-2180.h"
  16. void pin_mux_mmc(void)
  17. {
  18. struct udevice *dev;
  19. uchar val;
  20. int ret;
  21. /* Turn on MAX77620 LDO2 to 3.3V for SD card power */
  22. debug("%s: Set LDO2 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_L2_REG, &val, 1);
  31. if (ret)
  32. printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
  33. /* Disable LDO4 discharge */
  34. ret = dm_i2c_read(dev, MAX77620_CNFG2_L4_REG, &val, 1);
  35. if (ret) {
  36. printf("i2c_read 0 0x3c 0x2c failed: %d\n", ret);
  37. } else {
  38. val &= ~BIT(1); /* ADE */
  39. ret = dm_i2c_write(dev, MAX77620_CNFG2_L4_REG, &val, 1);
  40. if (ret)
  41. printf("i2c_write 0 0x3c 0x2c failed: %d\n", ret);
  42. }
  43. /* Set MBLPD */
  44. ret = dm_i2c_read(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
  45. if (ret) {
  46. printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
  47. } else {
  48. val |= BIT(6); /* MBLPD */
  49. ret = dm_i2c_write(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
  50. if (ret)
  51. printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
  52. }
  53. }
  54. /*
  55. * Routine: pinmux_init
  56. * Description: Do individual peripheral pinmux configs
  57. */
  58. void pinmux_init(void)
  59. {
  60. pinmux_clear_tristate_input_clamping();
  61. gpio_config_table(p2371_2180_gpio_inits,
  62. ARRAY_SIZE(p2371_2180_gpio_inits));
  63. pinmux_config_pingrp_table(p2371_2180_pingrps,
  64. ARRAY_SIZE(p2371_2180_pingrps));
  65. pinmux_config_drvgrp_table(p2371_2180_drvgrps,
  66. ARRAY_SIZE(p2371_2180_drvgrps));
  67. }
  68. #ifdef CONFIG_PCI_TEGRA
  69. int tegra_pcie_board_init(void)
  70. {
  71. struct udevice *dev;
  72. uchar val;
  73. int ret;
  74. /* Turn on MAX77620 LDO1 to 1.05V for PEX power */
  75. debug("%s: Set LDO1 for PEX power to 1.05V\n", __func__);
  76. ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
  77. if (ret) {
  78. printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
  79. return -1;
  80. }
  81. /* 0xCA for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
  82. val = 0xCA;
  83. ret = dm_i2c_write(dev, MAX77620_CNFG1_L1_REG, &val, 1);
  84. if (ret)
  85. printf("i2c_write 0 0x3c 0x25 failed: %d\n", ret);
  86. return 0;
  87. }
  88. #endif /* PCI */
  89. static void ft_mac_address_setup(void *fdt)
  90. {
  91. const void *cboot_fdt = (const void *)cboot_boot_x0;
  92. uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
  93. const char *path;
  94. int offset, err;
  95. err = cboot_get_ethaddr(cboot_fdt, local_mac);
  96. if (err < 0)
  97. memset(local_mac, 0, ETH_ALEN);
  98. path = fdt_get_alias(fdt, "ethernet");
  99. if (!path)
  100. return;
  101. debug("ethernet alias found: %s\n", path);
  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. if (is_valid_ethaddr(local_mac)) {
  108. err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
  109. ETH_ALEN);
  110. if (!err)
  111. debug("Local MAC address set: %pM\n", local_mac);
  112. }
  113. if (eth_env_get_enetaddr("ethaddr", mac)) {
  114. if (memcmp(local_mac, mac, ETH_ALEN) != 0) {
  115. err = fdt_setprop(fdt, offset, "mac-address", mac,
  116. ETH_ALEN);
  117. if (!err)
  118. debug("MAC address set: %pM\n", mac);
  119. }
  120. }
  121. }
  122. static int ft_copy_carveout(void *dst, const void *src, const char *node)
  123. {
  124. struct fdt_memory fb;
  125. int err;
  126. err = fdtdec_get_carveout(src, node, "memory-region", 0, &fb);
  127. if (err < 0) {
  128. if (err != -FDT_ERR_NOTFOUND)
  129. printf("failed to get carveout for %s: %d\n", node,
  130. err);
  131. return err;
  132. }
  133. err = fdtdec_set_carveout(dst, node, "memory-region", 0, "framebuffer",
  134. &fb);
  135. if (err < 0) {
  136. printf("failed to set carveout for %s: %d\n", node, err);
  137. return err;
  138. }
  139. return 0;
  140. }
  141. static void ft_carveout_setup(void *fdt)
  142. {
  143. const void *cboot_fdt = (const void *)cboot_boot_x0;
  144. static const char * const nodes[] = {
  145. "/host1x@50000000/dc@54200000",
  146. "/host1x@50000000/dc@54240000",
  147. };
  148. unsigned int i;
  149. int err;
  150. for (i = 0; i < ARRAY_SIZE(nodes); i++) {
  151. err = ft_copy_carveout(fdt, cboot_fdt, nodes[i]);
  152. if (err < 0) {
  153. if (err != -FDT_ERR_NOTFOUND)
  154. printf("failed to copy carveout for %s: %d\n",
  155. nodes[i], err);
  156. continue;
  157. }
  158. }
  159. }
  160. int ft_board_setup(void *fdt, bd_t *bd)
  161. {
  162. ft_mac_address_setup(fdt);
  163. ft_carveout_setup(fdt);
  164. return 0;
  165. }