diff options
Diffstat (limited to 'roms/u-boot/board/toradex/apalis_t30/apalis_t30.c')
| -rw-r--r-- | roms/u-boot/board/toradex/apalis_t30/apalis_t30.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/roms/u-boot/board/toradex/apalis_t30/apalis_t30.c b/roms/u-boot/board/toradex/apalis_t30/apalis_t30.c new file mode 100644 index 000000000..0396eea56 --- /dev/null +++ b/roms/u-boot/board/toradex/apalis_t30/apalis_t30.c @@ -0,0 +1,179 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * (C) Copyright 2014-2018 + * Marcel Ziswiler <marcel@ziswiler.com> + */ + +#include <common.h> +#include <init.h> +#include <log.h> +#include <asm/arch/gp_padctrl.h> +#include <asm/arch/pinmux.h> +#include <asm/arch-tegra/ap.h> +#include <asm/arch-tegra/tegra.h> +#include <asm/global_data.h> +#include <asm/gpio.h> +#include <asm/io.h> +#include <dm.h> +#include <i2c.h> +#include <pci_tegra.h> +#include <linux/delay.h> +#include "../common/tdx-common.h" + +#include "pinmux-config-apalis_t30.h" + +DECLARE_GLOBAL_DATA_PTR; + +#define PMU_I2C_ADDRESS 0x2D +#define MAX_I2C_RETRY 3 + +#ifdef CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT +#define PEX_PERST_N TEGRA_GPIO(S, 7) /* Apalis GPIO7 */ +#define RESET_MOCI_CTRL TEGRA_GPIO(I, 4) + +static int pci_reset_status; +#endif /* CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT */ + +int arch_misc_init(void) +{ + if (readl(NV_PA_BASE_SRAM + NVBOOTINFOTABLE_BOOTTYPE) == + NVBOOTTYPE_RECOVERY) + printf("USB recovery mode\n"); + + return 0; +} + +int checkboard(void) +{ + printf("Model: Toradex Apalis T30 %dGB\n", + (gd->ram_size == 0x40000000) ? 1 : 2); + + return 0; +} + +#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) +int ft_board_setup(void *blob, struct bd_info *bd) +{ + return ft_common_board_setup(blob, bd); +} +#endif + +/* + * Routine: pinmux_init + * Description: Do individual peripheral pinmux configs + */ +void pinmux_init(void) +{ + pinmux_config_pingrp_table(tegra3_pinmux_common, + ARRAY_SIZE(tegra3_pinmux_common)); + + pinmux_config_pingrp_table(unused_pins_lowpower, + ARRAY_SIZE(unused_pins_lowpower)); + + /* Initialize any non-default pad configs (APB_MISC_GP regs) */ + pinmux_config_drvgrp_table(apalis_t30_padctrl, + ARRAY_SIZE(apalis_t30_padctrl)); +} + +#ifdef CONFIG_PCI_TEGRA +int tegra_pcie_board_init(void) +{ + struct udevice *dev; + u8 addr, data[1]; + int err; + + err = i2c_get_chip_for_busnum(0, PMU_I2C_ADDRESS, 1, &dev); + if (err) { + debug("%s: Cannot find PMIC I2C chip\n", __func__); + return err; + } + + /* TPS659110: VDD2_OP_REG = 1.05V */ + data[0] = 0x27; + addr = 0x25; + + err = dm_i2c_write(dev, addr, data, 1); + if (err) { + debug("failed to set VDD supply\n"); + return err; + } + + /* TPS659110: VDD2_REG 7.5 mV/us, ACTIVE */ + data[0] = 0x0D; + addr = 0x24; + + err = dm_i2c_write(dev, addr, data, 1); + if (err) { + debug("failed to enable VDD supply\n"); + return err; + } + + /* TPS659110: LDO6_REG = 1.1V, ACTIVE */ + data[0] = 0x0D; + addr = 0x35; + + err = dm_i2c_write(dev, addr, data, 1); + if (err) { + debug("failed to set AVDD supply\n"); + return err; + } + +#ifdef CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT + gpio_request(PEX_PERST_N, "PEX_PERST_N"); + gpio_request(RESET_MOCI_CTRL, "RESET_MOCI_CTRL"); +#endif /* CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT */ + + return 0; +} + +void tegra_pcie_board_port_reset(struct tegra_pcie_port *port) +{ + int index = tegra_pcie_port_index_of_port(port); + + if (index == 2) { /* I210 Gigabit Ethernet Controller (On-module) */ + tegra_pcie_port_reset(port); + } +#ifdef CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT + /* + * Apalis PCIe aka port 1 and Apalis Type Specific 4 Lane PCIe aka port + * 0 share the same RESET_MOCI therefore only assert it once for both + * ports to avoid losing the previously brought up port again. + */ + else if ((index == 1) || (index == 0)) { + /* only do it once per init cycle */ + if (pci_reset_status % 2 == 0) { + /* + * Reset PLX PEX 8605 PCIe Switch plus PCIe devices on + * Apalis Evaluation Board + */ + gpio_direction_output(PEX_PERST_N, 0); + gpio_direction_output(RESET_MOCI_CTRL, 0); + + /* + * Must be asserted for 100 ms after power and clocks + * are stable + */ + mdelay(100); + + gpio_set_value(PEX_PERST_N, 1); + /* + * Err_5: PEX_REFCLK_OUTpx/nx Clock Outputs is not + * Guaranteed Until 900 us After PEX_PERST# De-assertion + */ + mdelay(1); + gpio_set_value(RESET_MOCI_CTRL, 1); + } + pci_reset_status++; + } +#endif /* CONFIG_APALIS_T30_PCIE_EVALBOARD_INIT */ +} +#endif /* CONFIG_PCI_TEGRA */ + +/* + * Backlight off before OS handover + */ +void board_preboot_os(void) +{ + gpio_request(TEGRA_GPIO(V, 2), "BKL1_ON"); + gpio_direction_output(TEGRA_GPIO(V, 2), 0); +} |