| Jonas Schwöbel | f6fb6b2 | 2022-04-02 22:04:00 +0200 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0+ |
| 2 | /* |
| 3 | * Ideapad Yoga 11 SPL stage configuration |
| 4 | * |
| 5 | * (C) Copyright 2010-2013 |
| 6 | * NVIDIA Corporation <www.nvidia.com> |
| 7 | * |
| 8 | * (C) Copyright 2021 |
| 9 | * Svyatoslav Ryhel <clamor95@gmail.com> |
| 10 | */ |
| 11 | |
| 12 | #include <asm/arch/tegra.h> |
| 13 | #include <asm/arch-tegra/tegra_i2c.h> |
| 14 | #include <linux/delay.h> |
| 15 | |
| 16 | #define TPS65911_I2C_ADDR (0x2D << 1) |
| 17 | #define TPS65911_VDDCTRL_OP_REG 0x28 |
| 18 | #define TPS65911_VDDCTRL_SR_REG 0x27 |
| 19 | #define TPS65911_VDDCTRL_OP_DATA (0x2400 | TPS65911_VDDCTRL_OP_REG) |
| 20 | #define TPS65911_VDDCTRL_SR_DATA (0x0100 | TPS65911_VDDCTRL_SR_REG) |
| 21 | |
| 22 | #define TPS62361B_I2C_ADDR (0x60 << 1) |
| 23 | #define TPS62361B_SET2_REG 0x02 |
| 24 | #define TPS62361B_SET2_DATA (0x4600 | TPS62361B_SET2_REG) |
| 25 | |
| 26 | void pmic_enable_cpu_vdd(void) |
| 27 | { |
| 28 | /* Set VDD_CORE to 1.200V. */ |
| 29 | tegra_i2c_ll_write(TPS62361B_I2C_ADDR, TPS62361B_SET2_DATA); |
| 30 | |
| 31 | udelay(1000); |
| 32 | |
| 33 | /* |
| 34 | * Bring up CPU VDD via the TPS65911x PMIC on the DVC I2C bus. |
| 35 | * First set VDD to 1.0125V, then enable the VDD regulator. |
| 36 | */ |
| 37 | tegra_i2c_ll_write(TPS65911_I2C_ADDR, TPS65911_VDDCTRL_OP_DATA); |
| 38 | udelay(1000); |
| 39 | tegra_i2c_ll_write(TPS65911_I2C_ADDR, TPS65911_VDDCTRL_SR_DATA); |
| 40 | udelay(10 * 1000); |
| 41 | } |