forked from Qortal/Brooklyn
2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
130 lines
4.1 KiB
C
130 lines
4.1 KiB
C
/*
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* Definitions for TI EMIF device platform data
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*
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* Copyright (C) 2012 Texas Instruments, Inc.
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*
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* Aneesh V <aneesh@ti.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __EMIF_PLAT_H
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#define __EMIF_PLAT_H
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/* Low power modes - EMIF_PWR_MGMT_CTRL */
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#define EMIF_LP_MODE_DISABLE 0
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#define EMIF_LP_MODE_CLOCK_STOP 1
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#define EMIF_LP_MODE_SELF_REFRESH 2
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#define EMIF_LP_MODE_PWR_DN 4
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/* Hardware capabilities */
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#define EMIF_HW_CAPS_LL_INTERFACE 0x00000001
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/*
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* EMIF IP Revisions
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* EMIF4D - Used in OMAP4
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* EMIF4D5 - Used in OMAP5
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*/
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#define EMIF_4D 1
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#define EMIF_4D5 2
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/*
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* PHY types
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* ATTILAPHY - Used in OMAP4
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* INTELLIPHY - Used in OMAP5
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*/
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#define EMIF_PHY_TYPE_ATTILAPHY 1
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#define EMIF_PHY_TYPE_INTELLIPHY 2
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/* Custom config requests */
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#define EMIF_CUSTOM_CONFIG_LPMODE 0x00000001
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#define EMIF_CUSTOM_CONFIG_TEMP_ALERT_POLL_INTERVAL 0x00000002
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#define EMIF_CUSTOM_CONFIG_EXTENDED_TEMP_PART 0x00000004
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#ifndef __ASSEMBLY__
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/**
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* struct ddr_device_info - All information about the DDR device except AC
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* timing parameters
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* @type: Device type (LPDDR2-S4, LPDDR2-S2 etc)
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* @density: Device density
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* @io_width: Bus width
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* @cs1_used: Whether there is a DDR device attached to the second
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* chip-select(CS1) of this EMIF instance
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* @cal_resistors_per_cs: Whether there is one calibration resistor per
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* chip-select or whether it's a single one for both
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* @manufacturer: Manufacturer name string
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*/
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struct ddr_device_info {
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u32 type;
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u32 density;
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u32 io_width;
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u32 cs1_used;
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u32 cal_resistors_per_cs;
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char manufacturer[10];
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};
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/**
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* struct emif_custom_configs - Custom configuration parameters/policies
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* passed from the platform layer
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* @mask: Mask to indicate which configs are requested
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* @lpmode: LPMODE to be used in PWR_MGMT_CTRL register
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* @lpmode_timeout_performance: Timeout before LPMODE entry when higher
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* performance is desired at the cost of power (typically
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* at higher OPPs)
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* @lpmode_timeout_power: Timeout before LPMODE entry when better power
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* savings is desired and performance is not important
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* (typically at lower loads indicated by lower OPPs)
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* @lpmode_freq_threshold: The DDR frequency threshold to identify between
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* the above two cases:
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* timeout = (freq >= lpmode_freq_threshold) ?
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* lpmode_timeout_performance :
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* lpmode_timeout_power;
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* @temp_alert_poll_interval_ms: LPDDR2 MR4 polling interval at nominal
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* temperature(in milliseconds). When temperature is high
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* polling is done 4 times as frequently.
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*/
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struct emif_custom_configs {
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u32 mask;
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u32 lpmode;
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u32 lpmode_timeout_performance;
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u32 lpmode_timeout_power;
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u32 lpmode_freq_threshold;
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u32 temp_alert_poll_interval_ms;
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};
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/**
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* struct emif_platform_data - Platform data passed on EMIF platform
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* device creation. Used by the driver.
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* @hw_caps: Hw capabilities of the EMIF IP in the respective SoC
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* @device_info: Device info structure containing information such
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* as type, bus width, density etc
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* @timings: Timings information from device datasheet passed
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* as an array of 'struct lpddr2_timings'. Can be NULL
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* if if default timings are ok
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* @timings_arr_size: Size of the timings array. Depends on the number
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* of different frequencies for which timings data
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* is provided
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* @min_tck: Minimum value of some timing parameters in terms
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* of number of cycles. Can be NULL if default values
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* are ok
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* @custom_configs: Custom configurations requested by SoC or board
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* code and the data for them. Can be NULL if default
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* configurations done by the driver are ok. See
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* documentation for 'struct emif_custom_configs' for
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* more details
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*/
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struct emif_platform_data {
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u32 hw_caps;
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struct ddr_device_info *device_info;
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const struct lpddr2_timings *timings;
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u32 timings_arr_size;
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const struct lpddr2_min_tck *min_tck;
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struct emif_custom_configs *custom_configs;
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u32 ip_rev;
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u32 phy_type;
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};
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#endif /* __ASSEMBLY__ */
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#endif /* __LINUX_EMIF_H */
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