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/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef NORTHBRIDGE_INTEL_SANDYBRIDGE_CHIP_H
#define NORTHBRIDGE_INTEL_SANDYBRIDGE_CHIP_H
#include <drivers/intel/gma/i915.h>
#include <stdbool.h>
#include <stdint.h>
/*
* Digital Port Hotplug Enable:
* 0x04 = Enabled, 2ms short pulse
* 0x05 = Enabled, 4.5ms short pulse
* 0x06 = Enabled, 6ms short pulse
* 0x07 = Enabled, 100ms short pulse
*/
struct northbridge_intel_sandybridge_config {
u8 gpu_dp_b_hotplug; /* Digital Port B Hotplug Config */
u8 gpu_dp_c_hotplug; /* Digital Port C Hotplug Config */
u8 gpu_dp_d_hotplug; /* Digital Port D Hotplug Config */
enum {
PANEL_PORT_LVDS = 0,
PANEL_PORT_DP_A = 1, /* Also known as eDP */
PANEL_PORT_DP_C = 2,
PANEL_PORT_DP_D = 3,
} gpu_panel_port_select;
u8 gpu_panel_power_cycle_delay; /* T4 time sequence */
u16 gpu_panel_power_up_delay; /* T1+T2 time sequence */
u16 gpu_panel_power_down_delay; /* T3 time sequence */
u16 gpu_panel_power_backlight_on_delay; /* T5 time sequence */
u16 gpu_panel_power_backlight_off_delay; /* Tx time sequence */
u32 gpu_cpu_backlight; /* CPU Backlight PWM value */
u32 gpu_pch_backlight; /* PCH Backlight PWM value */
/*
* Maximum memory clock.
* For example 666 for DDR3-1333, or 800 for DDR3-1600
*/
u16 max_mem_clock_mhz;
struct i915_gpu_controller_info gfx;
/* Data for RAM init */
/* DIMM SPD address. */
u8 spd_addresses[4];
/* PEI data for RAM init and early silicon init */
u8 ts_addresses[4];
bool ec_present;
bool ddr3lv_support;
/*
* N mode functionality. Leave this setting at 0.
* 0 Auto
* 1 1N
* 2 2N
*/
enum {
DDR_NMODE_AUTO = 0,
DDR_NMODE_1N,
DDR_NMODE_2N,
} nmode;
/*
* DDR refresh rate config. JEDEC Standard No.21-C Annex K allows for DIMM SPD data to
* specify whether double-rate is required for extended operating temperature range.
*
* 0 Enable double rate based upon temperature thresholds
* 1 Normal rate
* 2 Always enable double rate
*/
enum {
DDR_REFRESH_RATE_TEMP_THRES = 0,
DDR_REFRESH_REATE_NORMAL,
DDR_REFRESH_RATE_DOUBLE,
} ddr_refresh_rate_config;
struct {
/* 0: Disable, 1: Enable, 2: Auto, 3: Smart Auto */
u8 mode : 2;
/* 4 bit mask, 1: switchable, 0: not switchable */
u8 hs_port_switch_mask : 4;
/* 0: No xHCI preOS driver, 1: xHCI preOS driver */
u8 preboot_support : 1;
/* 0: Disable, 1: Enable */
u8 xhci_streams : 1;
} usb3;
};
#endif /* NORTHBRIDGE_INTEL_SANDYBRIDGE_CHIP_H */
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