ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/uboot/arch/arm/cpu/tegra20-common/pmu.c b/marvell/uboot/arch/arm/cpu/tegra20-common/pmu.c
new file mode 100644
index 0000000..c595f70
--- /dev/null
+++ b/marvell/uboot/arch/arm/cpu/tegra20-common/pmu.c
@@ -0,0 +1,54 @@
+/*
+ * 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 <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 */
+
+int pmu_set_nominal(void)
+{
+ int core, cpu, bus;
+
+ /* 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;
+ }
+
+ bus = tegra_i2c_get_dvc_bus_num();
+ if (bus == -1) {
+ debug("%s: Cannot find DVC I2C bus\n", __func__);
+ return -1;
+ }
+ tps6586x_init(bus);
+ tps6586x_set_pwm_mode(TPS6586X_PWM_SM1);
+ return tps6586x_adjust_sm0_sm1(core, cpu, VDD_TRANSITION_STEP,
+ VDD_TRANSITION_RATE, VDD_RELATION);
+}