mirror of
https://gitlab.com/redhat/centos-stream/src/kernel/centos-stream-9.git
synced 2026-09-09 12:05:30 +08:00
Al Stone
41d7d34143
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2071840 Tested: This is one of a series of patch sets to enable Arm SystemReady IR support in the kernel for NXP i.MX8 platforms. At this stage, this has been tested by ensuring we can survive the CI/CD loop -- i.e., that we have not broken anything else, and a simple boot test. When sufficient drivers have been brought in for i.MX8M, we will be able to run further tests. commit f2739ca15c414ebad88f4333e3186fd4144c1753 Author: Rob Herring <robh@kernel.org> Date: Fri Oct 22 11:46:42 2021 -0500 x86/of: Kill unused early_init_dt_scan_chosen_arch() There are no callers for early_init_dt_scan_chosen_arch(), so remove it. Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Frank Rowand <frank.rowand@sony.com> Link: https://lkml.kernel.org/r/20211022164642.2815706-1-robh@kernel.org (cherry picked from commit f2739ca15c414ebad88f4333e3186fd4144c1753) Signed-off-by: Al Stone <ahs3@redhat.com>
98 lines
3.4 KiB
C
98 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Definitions for working with the Flattened Device Tree data format
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*
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* Copyright 2009 Benjamin Herrenschmidt, IBM Corp
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* benh@kernel.crashing.org
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*/
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#ifndef _LINUX_OF_FDT_H
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#define _LINUX_OF_FDT_H
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#include <linux/types.h>
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#include <linux/init.h>
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#include <linux/errno.h>
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/* Definitions used by the flattened device tree */
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#define OF_DT_HEADER 0xd00dfeed /* marker */
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#ifndef __ASSEMBLY__
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#if defined(CONFIG_OF_FLATTREE)
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struct device_node;
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/* For scanning an arbitrary device-tree at any time */
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extern void *of_fdt_unflatten_tree(const unsigned long *blob,
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struct device_node *dad,
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struct device_node **mynodes);
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/* TBD: Temporary export of fdt globals - remove when code fully merged */
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extern int __initdata dt_root_addr_cells;
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extern int __initdata dt_root_size_cells;
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extern void *initial_boot_params;
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extern char __dtb_start[];
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extern char __dtb_end[];
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/* Other Prototypes */
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extern u64 of_flat_dt_translate_address(unsigned long node);
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extern void of_fdt_limit_memory(int limit);
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#endif /* CONFIG_OF_FLATTREE */
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#ifdef CONFIG_OF_EARLY_FLATTREE
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/* For scanning the flat device-tree at boot time */
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extern int of_scan_flat_dt(int (*it)(unsigned long node, const char *uname,
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int depth, void *data),
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void *data);
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extern int of_scan_flat_dt_subnodes(unsigned long node,
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int (*it)(unsigned long node,
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const char *uname,
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void *data),
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void *data);
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extern int of_get_flat_dt_subnode_by_name(unsigned long node,
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const char *uname);
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extern const void *of_get_flat_dt_prop(unsigned long node, const char *name,
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int *size);
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extern int of_flat_dt_is_compatible(unsigned long node, const char *name);
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extern unsigned long of_get_flat_dt_root(void);
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extern uint32_t of_get_flat_dt_phandle(unsigned long node);
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extern int early_init_dt_scan_chosen(char *cmdline);
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extern int early_init_dt_scan_memory(void);
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extern void early_init_dt_check_for_usable_mem_range(void);
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extern int early_init_dt_scan_chosen_stdout(void);
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extern void early_init_fdt_scan_reserved_mem(void);
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extern void early_init_fdt_reserve_self(void);
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extern void early_init_dt_add_memory_arch(u64 base, u64 size);
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extern u64 dt_mem_next_cell(int s, const __be32 **cellp);
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/* Early flat tree scan hooks */
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extern int early_init_dt_scan_root(void);
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extern bool early_init_dt_scan(void *params);
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extern bool early_init_dt_verify(void *params);
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extern void early_init_dt_scan_nodes(void);
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extern const char *of_flat_dt_get_machine_name(void);
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extern const void *of_flat_dt_match_machine(const void *default_match,
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const void * (*get_next_compat)(const char * const**));
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/* Other Prototypes */
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extern void unflatten_device_tree(void);
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extern void unflatten_and_copy_device_tree(void);
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extern void early_init_devtree(void *);
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extern void early_get_first_memblock_info(void *, phys_addr_t *);
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#else /* CONFIG_OF_EARLY_FLATTREE */
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static inline void early_init_dt_check_for_usable_mem_range(void) {}
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static inline int early_init_dt_scan_chosen_stdout(void) { return -ENODEV; }
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static inline void early_init_fdt_scan_reserved_mem(void) {}
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static inline void early_init_fdt_reserve_self(void) {}
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static inline const char *of_flat_dt_get_machine_name(void) { return NULL; }
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static inline void unflatten_device_tree(void) {}
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static inline void unflatten_and_copy_device_tree(void) {}
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#endif /* CONFIG_OF_EARLY_FLATTREE */
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#endif /* __ASSEMBLY__ */
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#endif /* _LINUX_OF_FDT_H */
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