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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-05-06 01:02:30 +0000
commit76cb841cb886eef6b3bee341a2266c76578724ad (patch)
treef5892e5ba6cc11949952a6ce4ecbe6d516d6ce58 /arch/arm/mach-omap2/omap_opp_data.h
parentInitial commit. (diff)
downloadlinux-76cb841cb886eef6b3bee341a2266c76578724ad.tar.xz
linux-76cb841cb886eef6b3bee341a2266c76578724ad.zip
Adding upstream version 4.19.249.upstream/4.19.249
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mach-omap2/omap_opp_data.h')
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+/*
+ * OMAP SoC specific OPP Data helpers
+ *
+ * Copyright (C) 2009-2010 Texas Instruments Incorporated - http://www.ti.com/
+ * Nishanth Menon
+ * Kevin Hilman
+ * Copyright (C) 2010 Nokia Corporation.
+ * Eduardo Valentin
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+#ifndef __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H
+#define __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H
+
+#include "omap_hwmod.h"
+
+#include "voltage.h"
+
+/*
+ * *BIG FAT WARNING*:
+ * USE the following ONLY in opp data initialization common to an SoC.
+ * DO NOT USE these in board files/pm core etc.
+ */
+
+/**
+ * struct omap_opp_def - OMAP OPP Definition
+ * @hwmod_name: Name of the hwmod for this domain
+ * @freq: Frequency in hertz corresponding to this OPP
+ * @u_volt: Nominal voltage in microvolts corresponding to this OPP
+ * @default_available: True/false - is this OPP available by default
+ *
+ * OMAP SOCs have a standard set of tuples consisting of frequency and voltage
+ * pairs that the device will support per voltage domain. This is called
+ * Operating Points or OPP. The actual definitions of OMAP Operating Points
+ * varies over silicon within the same family of devices. For a specific
+ * domain, you can have a set of {frequency, voltage} pairs and this is denoted
+ * by an array of omap_opp_def. As the kernel boots and more information is
+ * available, a set of these are activated based on the precise nature of
+ * device the kernel boots up on. It is interesting to remember that each IP
+ * which belongs to a voltage domain may define their own set of OPPs on top
+ * of this - but this is handled by the appropriate driver.
+ */
+struct omap_opp_def {
+ char *hwmod_name;
+
+ unsigned long freq;
+ unsigned long u_volt;
+
+ bool default_available;
+};
+
+/*
+ * Initialization wrapper used to define an OPP for OMAP variants.
+ */
+#define OPP_INITIALIZER(_hwmod_name, _enabled, _freq, _uv) \
+{ \
+ .hwmod_name = _hwmod_name, \
+ .default_available = _enabled, \
+ .freq = _freq, \
+ .u_volt = _uv, \
+}
+
+/*
+ * Initialization wrapper used to define SmartReflex process data
+ * XXX Is this needed? Just use C99 initializers in data files?
+ */
+#define VOLT_DATA_DEFINE(_v_nom, _efuse_offs, _errminlimit, _errgain) \
+{ \
+ .volt_nominal = _v_nom, \
+ .sr_efuse_offs = _efuse_offs, \
+ .sr_errminlimit = _errminlimit, \
+ .vp_errgain = _errgain \
+}
+
+/* Use this to initialize the default table */
+extern int __init omap_init_opp_table(struct omap_opp_def *opp_def,
+ u32 opp_def_size);
+
+
+extern struct omap_volt_data omap34xx_vddmpu_volt_data[];
+extern struct omap_volt_data omap34xx_vddcore_volt_data[];
+extern struct omap_volt_data omap36xx_vddmpu_volt_data[];
+extern struct omap_volt_data omap36xx_vddcore_volt_data[];
+
+extern struct omap_volt_data omap443x_vdd_mpu_volt_data[];
+extern struct omap_volt_data omap443x_vdd_iva_volt_data[];
+extern struct omap_volt_data omap443x_vdd_core_volt_data[];
+extern struct omap_volt_data omap446x_vdd_mpu_volt_data[];
+extern struct omap_volt_data omap446x_vdd_iva_volt_data[];
+extern struct omap_volt_data omap446x_vdd_core_volt_data[];
+
+#endif /* __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H */