mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-12 22:33:18 +00:00
14360bf059
Slim Bootloader already calibrated TSC and provides it to U-Boot. Therefore, U-Boot does not have to re-calibrate TSC. Configuring tsc_base and clock_rate makes x86 tsc_timer driver bypass TSC calibration and use the provided TSC frequency. - Get TSC frequency from performance info hob - Set tsc_base and clock_rate for tsc_timer driver Signed-off-by: Aiden Park <aiden.park@intel.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Copyright (C) 2019 Intel Corporation <www.intel.com>
|
|
*/
|
|
|
|
#ifndef __SLIMBOOTLOADER_ARCH_H__
|
|
#define __SLIMBOOTLOADER_ARCH_H__
|
|
|
|
#include <common.h>
|
|
#include <asm/hob.h>
|
|
|
|
/**
|
|
* A GUID to get MemoryMap info hob which is provided by Slim Bootloader
|
|
*/
|
|
#define SBL_MEMORY_MAP_INFO_GUID \
|
|
EFI_GUID(0xa1ff7424, 0x7a1a, 0x478e, \
|
|
0xa9, 0xe4, 0x92, 0xf3, 0x57, 0xd1, 0x28, 0x32)
|
|
|
|
/**
|
|
* A GUID to get SerialPort info hob which is provided by Slim Bootloader
|
|
*/
|
|
#define SBL_SERIAL_PORT_INFO_GUID \
|
|
EFI_GUID(0x6c6872fe, 0x56a9, 0x4403, \
|
|
0xbb, 0x98, 0x95, 0x8d, 0x62, 0xde, 0x87, 0xf1)
|
|
|
|
/**
|
|
* A GUID to get boot performance info hob which is provided by Slim Bootloader
|
|
*/
|
|
#define SBL_PERFORMANCE_INFO_GUID \
|
|
EFI_GUID(0x868204be, 0x23d0, 0x4ff9, \
|
|
0xac, 0x34, 0xb9, 0x95, 0xac, 0x04, 0xb1, 0xb9)
|
|
|
|
/**
|
|
* A single entry of memory map information
|
|
*
|
|
* @addr: start address of a memory map entry
|
|
* @size: size of a memory map entry
|
|
* @type: usable:1, reserved:2, acpi:3, nvs:4, unusable:5
|
|
* @flag: only used in Slim Bootloader
|
|
* @rsvd: padding for alignment
|
|
*/
|
|
struct sbl_memory_map_entry {
|
|
u64 addr;
|
|
u64 size;
|
|
u8 type;
|
|
u8 flag;
|
|
u8 rsvd[6];
|
|
};
|
|
|
|
/**
|
|
* This includes all memory map entries which is sorted based on physical start
|
|
* address, from low to high, and carved out reserved, acpi nvs, acpi reclaim
|
|
* and usable memory.
|
|
*
|
|
* @rev : revision of memory_map_info structure. currently 1.
|
|
* @rsvd : padding for alignment
|
|
* @count: the number of memory map entries
|
|
* @entry: array of all memory map entries
|
|
*/
|
|
struct sbl_memory_map_info {
|
|
u8 rev;
|
|
u8 rsvd[3];
|
|
u32 count;
|
|
struct sbl_memory_map_entry entry[0];
|
|
};
|
|
|
|
/**
|
|
* This includes serial port info which has already been initialized in previous
|
|
* Slim Bootloader stage.
|
|
* The Slim Bootloader initializes serial port regardless of debug/release build
|
|
* modes, and it passes the information to a payload thru hob. So, a payload can
|
|
* re-use the serial information without re-initializing serial port.
|
|
*
|
|
* @rev : revision of serial_port_info structure. currently 1.
|
|
* @rsvd : padding for alignment
|
|
* @type : port io: 1, mmio: 2
|
|
* @base : io base address. ex) 0x3f8, 0x80001000
|
|
* @baud : uart baud rate
|
|
* @stride: register stride in Bytes
|
|
* @clk : uart frequency in Hz
|
|
* @rsvd1 : reserved
|
|
*/
|
|
struct sbl_serial_port_info {
|
|
u8 rev;
|
|
u8 rsvd[3];
|
|
u32 type;
|
|
u32 base;
|
|
u32 baud;
|
|
u32 stride;
|
|
u32 clk;
|
|
u32 rsvd1;
|
|
};
|
|
|
|
/**
|
|
* This includes timestamp data which has been collected in Slim Bootloader
|
|
* stages from the reset vector. In addition, this has TSC frequency in KHz to
|
|
* calculate each timestamp.
|
|
*
|
|
* @rev : revision of performance_info structure. currently 1.
|
|
* @rsvd : padding for alignment
|
|
* @count : the number of collected timestamp data
|
|
* @flags : only used in Slim Bootloader
|
|
* @frequency: tsc frequency in KHz
|
|
* @timestamp: the array of timestamp data which has 64-bit tsc value
|
|
*/
|
|
struct sbl_performance_info {
|
|
u8 rev;
|
|
u8 rsvd[3];
|
|
u16 count;
|
|
u16 flags;
|
|
u32 frequency;
|
|
u64 timestamp[0];
|
|
};
|
|
|
|
#endif /* __SLIMBOOTLOADER_ARCH_H__ */
|