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The ASUS Transformer Pad TF701T is an Android tablet computer made by ASUS, successor to the ASUS Transformer Pad Infinity. The tablet includes a Tegra 4 T114 processor clocked at 1.9 GHz, and an upgraded 2560×1600 pixel resolution screen, increasing the pixel density to 300 PPI and a mobile dock. Transformers (t114) board derives from Nvidia Macallan development board. Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* T114 Transformers SPL stage configuration
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*
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* (C) Copyright 2010-2013
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* NVIDIA Corporation <www.nvidia.com>
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*
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* (C) Copyright 2023
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* Svyatoslav Ryhel <clamor95@gmail.com>
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*/
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#include <asm/arch/tegra.h>
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#include <asm/arch-tegra/tegra_i2c.h>
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#include <linux/delay.h>
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#define TPS65913_I2C_ADDR (0x58 << 1)
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#define TPS65913_SMPS12_CTRL 0x20
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#define TPS65913_SMPS12_VOLTAGE 0x23
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#define TPS65913_SMPS45_CTRL 0x28
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#define TPS65913_SMPS45_VOLTAGE 0x2B
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#define TPS65913_SMPS12_CTRL_DATA (0x5100 | TPS65913_SMPS12_CTRL)
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#define TPS65913_SMPS12_VOLTAGE_DATA (0x3900 | TPS65913_SMPS12_VOLTAGE)
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#define TPS65913_SMPS45_CTRL_DATA (0x5100 | TPS65913_SMPS45_CTRL)
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#define TPS65913_SMPS45_VOLTAGE_DATA (0x4c00 | TPS65913_SMPS45_VOLTAGE)
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void pmic_enable_cpu_vdd(void)
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{
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/* Set CORE VDD to 1.200V. */
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tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS45_VOLTAGE_DATA);
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udelay(1000);
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tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS45_CTRL_DATA);
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udelay(1000);
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/* Set CPU VDD to 1.0125V. */
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tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS12_VOLTAGE_DATA);
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udelay(1000);
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tegra_i2c_ll_write(TPS65913_I2C_ADDR, TPS65913_SMPS12_CTRL_DATA);
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udelay(10 * 1000);
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}
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