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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have multiple licenses (in these cases, dual license) declared in the SPDX-License-Identifier tag. In this case we change from listing "LICENSE-A LICENSE-B" or "LICENSE-A or LICENSE-B" or "(LICENSE-A OR LICENSE-B)" to "LICENSE-A OR LICENSE-B" as per the Linux Kernel style document. Note that parenthesis are allowed so when they were used before we continue to use them. Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by: Tom Rini <trini@konsulko.com>
156 lines
3.2 KiB
C
156 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ OR BSD-3-Clause */
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/*
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* Copyright(c) 2009 Intel Corporation. All rights reserved.
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*/
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#ifndef _LINUX_SFI_H
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#define _LINUX_SFI_H
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#include <errno.h>
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#include <linux/types.h>
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/* Table signatures reserved by the SFI specification */
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#define SFI_SIG_SYST "SYST"
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#define SFI_SIG_FREQ "FREQ"
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#define SFI_SIG_CPUS "CPUS"
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#define SFI_SIG_MTMR "MTMR"
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#define SFI_SIG_MRTC "MRTC"
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#define SFI_SIG_MMAP "MMAP"
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#define SFI_SIG_APIC "APIC"
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#define SFI_SIG_XSDT "XSDT"
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#define SFI_SIG_WAKE "WAKE"
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#define SFI_SIG_DEVS "DEVS"
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#define SFI_SIG_GPIO "GPIO"
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#define SFI_SIGNATURE_SIZE 4
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#define SFI_OEM_ID_SIZE 6
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#define SFI_OEM_TABLE_ID_SIZE 8
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#define SFI_NAME_LEN 16
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#define SFI_TABLE_MAX_ENTRIES 16
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#define SFI_GET_NUM_ENTRIES(ptable, entry_type) \
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((ptable->header.len - sizeof(struct sfi_table_header)) / \
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(sizeof(entry_type)))
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/*
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* Table structures must be byte-packed to match the SFI specification,
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* as they are provided by the BIOS.
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*/
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struct __packed sfi_table_header {
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char sig[SFI_SIGNATURE_SIZE];
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u32 len;
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u8 rev;
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u8 csum;
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char oem_id[SFI_OEM_ID_SIZE];
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char oem_table_id[SFI_OEM_TABLE_ID_SIZE];
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};
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struct __packed sfi_table_simple {
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struct sfi_table_header header;
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u64 pentry[1];
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};
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/* Comply with UEFI spec 2.1 */
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struct __packed sfi_mem_entry {
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u32 type;
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u64 phys_start;
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u64 virt_start;
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u64 pages;
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u64 attrib;
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};
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/* Memory type definitions */
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enum sfi_mem_type {
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SFI_MEM_RESERVED,
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SFI_LOADER_CODE,
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SFI_LOADER_DATA,
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SFI_BOOT_SERVICE_CODE,
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SFI_BOOT_SERVICE_DATA,
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SFI_RUNTIME_SERVICE_CODE,
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SFI_RUNTIME_SERVICE_DATA,
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SFI_MEM_CONV,
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SFI_MEM_UNUSABLE,
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SFI_ACPI_RECLAIM,
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SFI_ACPI_NVS,
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SFI_MEM_MMIO,
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SFI_MEM_IOPORT,
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SFI_PAL_CODE,
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SFI_MEM_TYPEMAX,
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};
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struct __packed sfi_cpu_table_entry {
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u32 apic_id;
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};
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struct __packed sfi_cstate_table_entry {
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u32 hint; /* MWAIT hint */
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u32 latency; /* latency in ms */
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};
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struct __packed sfi_apic_table_entry {
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u64 phys_addr; /* phy base addr for APIC reg */
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};
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struct __packed sfi_freq_table_entry {
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u32 freq_mhz; /* in MHZ */
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u32 latency; /* transition latency in ms */
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u32 ctrl_val; /* value to write to PERF_CTL */
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};
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struct __packed sfi_wake_table_entry {
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u64 phys_addr; /* pointer to where the wake vector locates */
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};
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struct __packed sfi_timer_table_entry {
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u64 phys_addr; /* phy base addr for the timer */
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u32 freq_hz; /* in HZ */
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u32 irq;
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};
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struct __packed sfi_rtc_table_entry {
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u64 phys_addr; /* phy base addr for the RTC */
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u32 irq;
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};
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struct __packed sfi_device_table_entry {
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u8 type; /* bus type, I2C, SPI or ...*/
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u8 host_num; /* attached to host 0, 1...*/
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u16 addr;
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u8 irq;
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u32 max_freq;
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char name[SFI_NAME_LEN];
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};
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enum {
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SFI_DEV_TYPE_SPI = 0,
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SFI_DEV_TYPE_I2C,
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SFI_DEV_TYPE_UART,
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SFI_DEV_TYPE_HSI,
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SFI_DEV_TYPE_IPC,
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SFI_DEV_TYPE_SD,
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};
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struct __packed sfi_gpio_table_entry {
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char controller_name[SFI_NAME_LEN];
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u16 pin_no;
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char pin_name[SFI_NAME_LEN];
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};
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struct sfi_xsdt_header {
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uint32_t oem_revision;
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uint32_t creator_id;
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uint32_t creator_revision;
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};
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typedef int (*sfi_table_handler) (struct sfi_table_header *table);
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/**
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* write_sfi_table() - Write Simple Firmware Interface tables
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*
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* @base: Address to write table to
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* @return address to use for the next table
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*/
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ulong write_sfi_table(ulong base);
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#endif /*_LINUX_SFI_H */
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