| Svyatoslav Ryhel | df7c418 | 2024-11-16 14:33:47 +0200 | [diff] [blame] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * (C) Copyright 2024 |
| 4 | * Svyatoslav Ryhel <clamor95@gmail.com> |
| 5 | */ |
| 6 | |
| 7 | #include <dm.h> |
| 8 | #include <fdt_support.h> |
| 9 | #include <i2c.h> |
| 10 | #include <log.h> |
| 11 | |
| 12 | #ifdef CONFIG_MMC_SDHCI_TEGRA |
| 13 | |
| 14 | #define TPS65913_I2C_ADDRESS 0x58 |
| 15 | #define TPS65913_PRIMARY_SECONDARY_PAD2 0xfb |
| 16 | #define GPIO_4 BIT(0) |
| 17 | #define TPS65913_PRIMARY_SECONDARY_PAD3 0xfe |
| 18 | #define DVFS2 BIT(1) |
| 19 | #define DVFS1 BIT(0) |
| 20 | |
| 21 | /* We are using this function only till palmas pinctrl driver is available */ |
| 22 | void pin_mux_mmc(void) |
| 23 | { |
| 24 | struct udevice *dev; |
| 25 | int ret; |
| 26 | |
| 27 | ret = i2c_get_chip_for_busnum(0, TPS65913_I2C_ADDRESS, 1, &dev); |
| 28 | if (ret) { |
| 29 | log_debug("%s: cannot find PMIC I2C chip\n", __func__); |
| 30 | return; |
| 31 | } |
| 32 | |
| 33 | /* GPIO4 function has to be GPIO */ |
| 34 | dm_i2c_reg_clrset(dev, TPS65913_PRIMARY_SECONDARY_PAD2, |
| 35 | GPIO_4, 0); |
| 36 | |
| 37 | /* DVFS1 and DVFS2 are disabled */ |
| 38 | dm_i2c_reg_clrset(dev, TPS65913_PRIMARY_SECONDARY_PAD3, |
| 39 | DVFS2 | DVFS1, 0); |
| 40 | } |
| 41 | #endif |