1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Copyright (c) 2011, Google Inc.
6 #ifndef ASM_ARCH_PEI_DATA_H
7 #define ASM_ARCH_PEI_DATA_H
9 #include <linux/linkage.h>
11 struct pch_usb3_controller_settings {
12 /* 0: Disable, 1: Enable, 2: Auto, 3: Smart Auto */
14 /* 4 bit mask, 1: switchable, 0: not switchable */
15 uint16_t hs_port_switch_mask;
16 /* 0: No xHCI preOS driver, 1: xHCI preOS driver */
17 uint16_t preboot_support;
18 /* 0: Disable, 1: Enable */
19 uint16_t xhci_streams;
22 typedef asmlinkage void (*tx_byte_func)(unsigned char byte);
26 struct __packed pei_data {
35 uint32_t hpet_address;
40 uint32_t system_type; /* 0 Mobile, 1 Desktop/Server */
42 uint8_t spd_addresses[4];
43 uint8_t ts_addresses[4];
48 * 0 = leave channel enabled
49 * 1 = disable dimm 0 on channel
50 * 2 = disable dimm 1 on channel
51 * 3 = disable dimm 0+1 on channel
53 int dimm_channel0_disabled;
54 int dimm_channel1_disabled;
55 /* Seed values saved in CMOS */
56 uint32_t scrambler_seed;
57 uint32_t scrambler_seed_s3;
58 /* Data read from flash and passed into MRC */
59 unsigned char *mrc_input;
60 unsigned int mrc_input_len;
61 /* Data from MRC that should be saved to flash */
62 unsigned char *mrc_output;
63 unsigned int mrc_output_len;
65 * Max frequency DDR3 could be ran at. Could be one of four values:
66 * 800, 1067, 1333, 1600
68 uint32_t max_ddr3_freq;
70 * USB Port Configuration:
72 * [1] = overcurrent pin
75 * Ports 0-7 can be mapped to OC0-OC3
76 * Ports 8-13 can be mapped to OC4-OC7
80 * < 0x050 = Setting 1 (back panel, 1-5in, lowest tx amplitude)
81 * < 0x140 = Setting 2 (back panel, 5-14in, highest tx amplitude)
83 * < 0x080 = Setting 1 (front/back panel, <8in, lowest tx amplitude)
84 * < 0x130 = Setting 2 (back panel, 8-13in, higher tx amplitude)
85 * < 0x150 = Setting 3 (back panel, 13-15in, higest tx amplitude)
87 uint16_t usb_port_config[16][3];
88 /* See the usb3 struct above for details */
89 struct pch_usb3_controller_settings usb3;
91 * SPD data array for onboard RAM. Specify address 0xf0,
92 * 0xf1, 0xf2, 0xf3 to index one of the 4 slots in
93 * spd_address for a given "DIMM".
95 uint8_t spd_data[4][256];
99 * pcie_init needs to be set to 1 to have the system agent initialise
100 * PCIe. Note: This should only be required if your system has Gen3
101 * devices and it will increase your boot time by at least 100ms.
105 * N mode functionality. Leave this setting at 0.
112 * DDR refresh rate config. JEDEC Standard No.21-C Annex K allows
113 * for DIMM SPD data to specify whether double-rate is required for
114 * extended operating temperature range.
115 * 0 Enable double rate based upon temperature thresholds
117 * 2 Always enable double rate
119 int ddr_refresh_rate_config;