summaryrefslogtreecommitdiff
path: root/arch/arm/cpu/tegra20-common/pmu.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/cpu/tegra20-common/pmu.c')
-rw-r--r--arch/arm/cpu/tegra20-common/pmu.c65
1 files changed, 0 insertions, 65 deletions
diff --git a/arch/arm/cpu/tegra20-common/pmu.c b/arch/arm/cpu/tegra20-common/pmu.c
deleted file mode 100644
index a774246..0000000
--- a/arch/arm/cpu/tegra20-common/pmu.c
+++ /dev/null
@@ -1,65 +0,0 @@
-/*
- * Copyright (c) 2011 The Chromium OS Authors.
- * (C) Copyright 2010,2011 NVIDIA Corporation <www.nvidia.com>
- *
- * SPDX-License-Identifier: GPL-2.0+
- */
-
-#include <common.h>
-#include <i2c.h>
-#include <tps6586x.h>
-#include <asm/io.h>
-#include <asm/arch/tegra.h>
-#include <asm/arch-tegra/ap.h>
-#include <asm/arch-tegra/tegra_i2c.h>
-#include <asm/arch-tegra/sys_proto.h>
-
-#define VDD_CORE_NOMINAL_T25 0x17 /* 1.3v */
-#define VDD_CPU_NOMINAL_T25 0x10 /* 1.125v */
-
-#define VDD_CORE_NOMINAL_T20 0x16 /* 1.275v */
-#define VDD_CPU_NOMINAL_T20 0x0f /* 1.1v */
-
-#define VDD_RELATION 0x02 /* 50mv */
-#define VDD_TRANSITION_STEP 0x06 /* 150mv */
-#define VDD_TRANSITION_RATE 0x06 /* 3.52mv/us */
-
-#define PMI_I2C_ADDRESS 0x34 /* chip requires this address */
-
-int pmu_set_nominal(void)
-{
- struct udevice *bus, *dev;
- int core, cpu;
- int ret;
-
- /* by default, the table has been filled with T25 settings */
- switch (tegra_get_chip_sku()) {
- case TEGRA_SOC_T20:
- core = VDD_CORE_NOMINAL_T20;
- cpu = VDD_CPU_NOMINAL_T20;
- break;
- case TEGRA_SOC_T25:
- core = VDD_CORE_NOMINAL_T25;
- cpu = VDD_CPU_NOMINAL_T25;
- break;
- default:
- debug("%s: Unknown SKU id\n", __func__);
- return -1;
- }
-
- ret = tegra_i2c_get_dvc_bus(&bus);
- if (ret) {
- debug("%s: Cannot find DVC I2C bus\n", __func__);
- return ret;
- }
- ret = i2c_get_chip(bus, PMI_I2C_ADDRESS, 1, &dev);
- if (ret) {
- debug("%s: Cannot find DVC I2C chip\n", __func__);
- return ret;
- }
-
- tps6586x_init(dev);
- tps6586x_set_pwm_mode(TPS6586X_PWM_SM1);
- return tps6586x_adjust_sm0_sm1(core, cpu, VDD_TRANSITION_STEP,
- VDD_TRANSITION_RATE, VDD_RELATION);
-}