diff options
Diffstat (limited to 'arch')
43 files changed, 122 insertions, 282 deletions
diff --git a/arch/arc/Makefile b/arch/arc/Makefile index 644815c0516e..c64c505d966c 100644 --- a/arch/arc/Makefile +++ b/arch/arc/Makefile @@ -102,11 +102,5 @@ boot_targets += uImage uImage.bin uImage.gz $(boot_targets): vmlinux $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ -%.dtb %.dtb.S %.dtb.o: scripts - $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ - -dtbs: scripts - $(Q)$(MAKE) $(build)=$(boot)/dts - archclean: $(Q)$(MAKE) $(clean)=$(boot) diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 5c91e0093ee8..05a91d8b89f3 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -303,12 +303,7 @@ else KBUILD_IMAGE := $(boot)/zImage endif -# Build the DT binary blobs if we have OF configured -ifeq ($(CONFIG_USE_OF),y) -KBUILD_DTBS := dtbs -endif - -all: $(notdir $(KBUILD_IMAGE)) $(KBUILD_DTBS) +all: $(notdir $(KBUILD_IMAGE)) archheaders: @@ -335,17 +330,6 @@ $(BOOT_TARGETS): vmlinux $(INSTALL_TARGETS): $(Q)$(MAKE) $(build)=$(boot) MACHINE=$(MACHINE) $@ -%.dtb: | scripts - $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@ - -PHONY += dtbs dtbs_install - -dtbs: prepare scripts - $(Q)$(MAKE) $(build)=$(boot)/dts - -dtbs_install: - $(Q)$(MAKE) $(dtbinst)=$(boot)/dts - PHONY += vdso_install vdso_install: ifeq ($(CONFIG_VDSO),y) @@ -367,8 +351,6 @@ define archhelp echo ' uImage - U-Boot wrapped zImage' echo ' bootpImage - Combined zImage and initial RAM disk' echo ' (supply initrd image via make variable INITRD=<path>)' - echo '* dtbs - Build device tree blobs for enabled boards' - echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' echo ' install - Install uncompressed kernel' echo ' zinstall - Install compressed kernel' echo ' uinstall - Install U-Boot wrapped compressed kernel' diff --git a/arch/arm/boot/compressed/libfdt_env.h b/arch/arm/boot/compressed/libfdt_env.h index 07437816e098..b36c0289a308 100644 --- a/arch/arm/boot/compressed/libfdt_env.h +++ b/arch/arm/boot/compressed/libfdt_env.h @@ -6,6 +6,8 @@ #include <linux/string.h> #include <asm/byteorder.h> +#define INT_MAX ((int)(~0U>>1)) + typedef __be16 fdt16_t; typedef __be32 fdt32_t; typedef __be64 fdt64_t; diff --git a/arch/arm/kernel/devtree.c b/arch/arm/kernel/devtree.c index ecaa68dd1af5..13bcd3b867cb 100644 --- a/arch/arm/kernel/devtree.c +++ b/arch/arm/kernel/devtree.c @@ -87,14 +87,11 @@ void __init arm_dt_init_cpu_maps(void) if (!cpus) return; - for_each_child_of_node(cpus, cpu) { + for_each_of_cpu_node(cpu) { const __be32 *cell; int prop_bytes; u32 hwid; - if (of_node_cmp(cpu->type, "cpu")) - continue; - pr_debug(" * %pOF...\n", cpu); /* * A device tree containing CPU nodes with missing "reg" diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c index 24ac3cab411d..60e375ce1ab2 100644 --- a/arch/arm/kernel/topology.c +++ b/arch/arm/kernel/topology.c @@ -94,12 +94,6 @@ static void __init parse_dt_topology(void) __cpu_capacity = kcalloc(nr_cpu_ids, sizeof(*__cpu_capacity), GFP_NOWAIT); - cn = of_find_node_by_path("/cpus"); - if (!cn) { - pr_err("No CPU information found in DT\n"); - return; - } - for_each_possible_cpu(cpu) { const u32 *rate; int len; diff --git a/arch/arm/mach-shmobile/pm-rcar-gen2.c b/arch/arm/mach-shmobile/pm-rcar-gen2.c index 345af3ebcc3a..7efe95bd584f 100644 --- a/arch/arm/mach-shmobile/pm-rcar-gen2.c +++ b/arch/arm/mach-shmobile/pm-rcar-gen2.c @@ -50,7 +50,7 @@ void __init rcar_gen2_pm_init(void) void __iomem *p; u32 bar; static int once; - struct device_node *np, *cpus; + struct device_node *np; bool has_a7 = false; bool has_a15 = false; struct resource res; @@ -59,11 +59,7 @@ void __init rcar_gen2_pm_init(void) if (once++) return; - cpus = of_find_node_by_path("/cpus"); - if (!cpus) - return; - - for_each_child_of_node(cpus, np) { + for_each_of_cpu_node(np) { if (of_device_is_compatible(np, "arm,cortex-a15")) has_a15 = true; else if (of_device_is_compatible(np, "arm,cortex-a7")) diff --git a/arch/arm/mach-shmobile/pm-rmobile.c b/arch/arm/mach-shmobile/pm-rmobile.c index e348bcfe389d..94fdeef11b81 100644 --- a/arch/arm/mach-shmobile/pm-rmobile.c +++ b/arch/arm/mach-shmobile/pm-rmobile.c @@ -202,7 +202,7 @@ static void __init get_special_pds(void) const struct of_device_id *id; /* PM domains containing CPUs */ - for_each_node_by_type(np, "cpu") + for_each_of_cpu_node(np) add_special_pd(np, PD_CPU); /* PM domain containing console */ diff --git a/arch/arm/mach-shmobile/timer.c b/arch/arm/mach-shmobile/timer.c index 828e8aea037e..e48b0939693f 100644 --- a/arch/arm/mach-shmobile/timer.c +++ b/arch/arm/mach-shmobile/timer.c @@ -22,22 +22,16 @@ void __init shmobile_init_delay(void) { - struct device_node *np, *cpus; + struct device_node *np; u32 max_freq = 0; - cpus = of_find_node_by_path("/cpus"); - if (!cpus) - return; - - for_each_child_of_node(cpus, np) { + for_each_of_cpu_node(np) { u32 freq; if (!of_property_read_u32(np, "clock-frequency", &freq)) max_freq = max(max_freq, freq); } - of_node_put(cpus); - if (!max_freq) return; diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index 106039d25e2f..b4e994cd3a42 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -113,9 +113,8 @@ core-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a # Default target when executing plain make boot := arch/arm64/boot KBUILD_IMAGE := $(boot)/Image.gz -KBUILD_DTBS := dtbs -all: Image.gz $(KBUILD_DTBS) +all: Image.gz Image: vmlinux @@ -127,17 +126,6 @@ Image.%: Image zinstall install: $(Q)$(MAKE) $(build)=$(boot) $@ -%.dtb: scripts - $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ - -PHONY += dtbs dtbs_install - -dtbs: prepare scripts - $(Q)$(MAKE) $(build)=$(boot)/dts - -dtbs_install: - $(Q)$(MAKE) $(dtbinst)=$(boot)/dts - PHONY += vdso_install vdso_install: $(Q)$(MAKE) $(build)=arch/arm64/kernel/vdso $@ @@ -145,7 +133,6 @@ vdso_install: # We use MRPROPER_FILES and CLEAN_FILES now archclean: $(Q)$(MAKE) $(clean)=$(boot) - $(Q)$(MAKE) $(clean)=$(boot)/dts # We need to generate vdso-offsets.h before compiling certain files in kernel/. # In order to do that, we should use the archprepare target, but we can't since @@ -160,8 +147,6 @@ vdso_prepare: prepare0 define archhelp echo '* Image.gz - Compressed kernel image (arch/$(ARCH)/boot/Image.gz)' echo ' Image - Uncompressed kernel image (arch/$(ARCH)/boot/Image)' - echo '* dtbs - Build device tree blobs for enabled boards' - echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' echo ' install - Install uncompressed kernel' echo ' zinstall - Install compressed kernel' echo ' Install using (your) ~/bin/installkernel or' diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 25fcd22a4bb2..96b8f2f51ab2 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -602,7 +602,7 @@ static void __init of_parse_and_init_cpus(void) { struct device_node *dn; - for_each_node_by_type(dn, "cpu") { + for_each_of_cpu_node(dn) { u64 hwid = of_get_cpu_mpidr(dn); if (hwid == INVALID_HWID) diff --git a/arch/c6x/Makefile b/arch/c6x/Makefile index 3fe8a948e94c..b7aa854f7008 100644 --- a/arch/c6x/Makefile +++ b/arch/c6x/Makefile @@ -40,9 +40,7 @@ boot := arch/$(ARCH)/boot DTB:=$(subst dtbImage.,,$(filter dtbImage.%, $(MAKECMDGOALS))) export DTB -ifneq ($(DTB),) core-y += $(boot)/dts/ -endif # With make 3.82 we cannot mix normal and wildcard targets diff --git a/arch/c6x/boot/dts/Makefile b/arch/c6x/boot/dts/Makefile index b212d278ebc4..f438285c3640 100644 --- a/arch/c6x/boot/dts/Makefile +++ b/arch/c6x/boot/dts/Makefile @@ -5,15 +5,12 @@ DTC_FLAGS ?= -p 1024 +dtb-$(CONFIG_SOC_TMS320C6455) += dsk6455.dtb +dtb-$(CONFIG_SOC_TMS320C6457) += evmc6457.dtb +dtb-$(CONFIG_SOC_TMS320C6472) += evmc6472.dtb +dtb-$(CONFIG_SOC_TMS320C6474) += evmc6474.dtb +dtb-$(CONFIG_SOC_TMS320C6678) += evmc6678.dtb + ifneq ($(DTB),) -obj-y += linked_dtb.o +obj-y += $(DTB).dtb.o endif - -quiet_cmd_cp = CP $< $@$2 - cmd_cp = cat $< >$@$2 || (rm -f $@ && echo false) - -# Generate builtin.dtb from $(DTB).dtb -$(obj)/builtin.dtb: $(obj)/$(DTB).dtb - $(call if_changed,cp) - -$(obj)/linked_dtb.o: $(obj)/builtin.dtb diff --git a/arch/c6x/boot/dts/linked_dtb.S b/arch/c6x/boot/dts/linked_dtb.S deleted file mode 100644 index cf347f1d16ce..000000000000 --- a/arch/c6x/boot/dts/linked_dtb.S +++ /dev/null @@ -1,2 +0,0 @@ -.section __fdt_blob,"a" -.incbin "arch/c6x/boot/dts/builtin.dtb" diff --git a/arch/c6x/include/asm/sections.h b/arch/c6x/include/asm/sections.h index d6c591ab5b7e..dc2f15eb3bde 100644 --- a/arch/c6x/include/asm/sections.h +++ b/arch/c6x/include/asm/sections.h @@ -8,6 +8,5 @@ extern char _vectors_start[]; extern char _vectors_end[]; extern char _data_lma[]; -extern char _fdt_start[], _fdt_end[]; #endif /* _ASM_C6X_SECTIONS_H */ diff --git a/arch/c6x/kernel/setup.c b/arch/c6x/kernel/setup.c index 786e36e2f61d..05d96a9541b5 100644 --- a/arch/c6x/kernel/setup.c +++ b/arch/c6x/kernel/setup.c @@ -96,7 +96,7 @@ static void __init get_cpuinfo(void) unsigned long core_khz; u64 tmp; struct cpuinfo_c6x *p; - struct device_node *node, *np; + struct device_node *node; p = &per_cpu(cpu_data, smp_processor_id()); @@ -190,13 +190,8 @@ static void __init get_cpuinfo(void) p->core_id = get_coreid(); - node = of_find_node_by_name(NULL, "cpus"); - if (node) { - for_each_child_of_node(node, np) - if (!strcmp("cpu", np->name)) - ++c6x_num_cores; - of_node_put(node); - } + for_each_of_cpu_node(node) + ++c6x_num_cores; node = of_find_node_by_name(NULL, "soc"); if (node) { @@ -270,7 +265,7 @@ int __init c6x_add_memory(phys_addr_t start, unsigned long size) notrace void __init machine_init(unsigned long dt_ptr) { void *dtb = __va(dt_ptr); - void *fdt = _fdt_start; + void *fdt = __dtb_start; /* interrupts must be masked */ set_creg(IER, 2); @@ -363,7 +358,7 @@ void __init setup_arch(char **cmdline_p) memory_end >> PAGE_SHIFT); memblock_reserve(memory_start, bootmap_size); - unflatten_device_tree(); + unflatten_and_copy_device_tree(); c6x_cache_init(); diff --git a/arch/c6x/kernel/vmlinux.lds.S b/arch/c6x/kernel/vmlinux.lds.S index 1fba5b421eee..584bab2bace6 100644 --- a/arch/c6x/kernel/vmlinux.lds.S +++ b/arch/c6x/kernel/vmlinux.lds.S @@ -90,16 +90,6 @@ SECTIONS *(.switch) } - . = ALIGN (8) ; - __fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) - { - _fdt_start = . ; /* place for fdt blob */ - *(__fdt_blob) ; /* Any link-placed DTB */ - BYTE(0); /* section always has contents */ - . = _fdt_start + 0x4000; /* Pad up to 16kbyte */ - _fdt_end = . ; - } - _etext = .; /* diff --git a/arch/h8300/Makefile b/arch/h8300/Makefile index 58634e6bae92..4003ddc616e1 100644 --- a/arch/h8300/Makefile +++ b/arch/h8300/Makefile @@ -31,21 +31,12 @@ CROSS_COMPILE := h8300-unknown-linux- endif core-y += arch/$(ARCH)/kernel/ arch/$(ARCH)/mm/ -ifneq '$(CONFIG_H8300_BUILTIN_DTB)' '""' -core-y += arch/h8300/boot/dts/ -endif +core-y += arch/$(ARCH)/boot/dts/ libs-y += arch/$(ARCH)/lib/ boot := arch/h8300/boot -%.dtb %.dtb.S %.dtb.o: | scripts - $(Q)$(MAKE) $(build)=arch/h8300/boot/dts arch/h8300/boot/dts/$@ - -PHONY += dtbs -dtbs: scripts - $(Q)$(MAKE) $(build)=arch/h8300/boot/dts - archmrproper: archclean: diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile index 4f3ab5707265..0823d291fbeb 100644 --- a/arch/microblaze/Makefile +++ b/arch/microblaze/Makefile @@ -65,9 +65,7 @@ boot := arch/microblaze/boot # Are we making a simpleImage.<boardname> target? If so, crack out the boardname DTB:=$(subst simpleImage.,,$(filter simpleImage.%, $(MAKECMDGOALS))) -ifneq ($(DTB),) - core-y += $(boot)/dts/ -endif +core-y += $(boot)/dts/ # defines filename extension depending memory management type ifeq ($(CONFIG_MMU),) diff --git a/arch/microblaze/boot/dts/Makefile b/arch/microblaze/boot/dts/Makefile index 1f77913d404d..c7324e74f9ef 100644 --- a/arch/microblaze/boot/dts/Makefile +++ b/arch/microblaze/boot/dts/Makefile @@ -1,6 +1,9 @@ # SPDX-License-Identifier: GPL-2.0 # +dtb-y := system.dtb + +ifneq ($(DTB),) obj-y += linked_dtb.o # Ensure system.dtb exists @@ -11,6 +14,7 @@ ifneq ($(DTB),system) $(obj)/system.dtb: $(obj)/$(DTB).dtb $(call if_changed,cp) endif +endif quiet_cmd_cp = CP $< $@$2 cmd_cp = cat $< >$@$2 || (rm -f $@ && echo false) diff --git a/arch/microblaze/kernel/cpu/cpuinfo.c b/arch/microblaze/kernel/cpu/cpuinfo.c index 96b3f26d16be..ef2f49471a2a 100644 --- a/arch/microblaze/kernel/cpu/cpuinfo.c +++ b/arch/microblaze/kernel/cpu/cpuinfo.c @@ -89,9 +89,9 @@ static struct device_node *cpu; void __init setup_cpuinfo(void) { - cpu = (struct device_node *) of_find_node_by_type(NULL, "cpu"); + cpu = of_get_cpu_node(0, NULL); if (!cpu) - pr_err("You don't have cpu!!!\n"); + pr_err("You don't have cpu or are missing cpu reg property!!!\n"); pr_info("%s: initialising\n", __func__); @@ -117,6 +117,8 @@ void __init setup_cpuinfo(void) if (cpuinfo.mmu_privins) pr_warn("%s: Stream instructions enabled" " - USERSPACE CAN LOCK THIS KERNEL!\n", __func__); + + of_node_put(cpu); } void __init setup_cpuinfo_clk(void) diff --git a/arch/mips/Makefile b/arch/mips/Makefile index d74b3742fa5d..d43eeaa6d75b 100644 --- a/arch/mips/Makefile +++ b/arch/mips/Makefile @@ -407,18 +407,7 @@ endif CLEAN_FILES += vmlinux.32 vmlinux.64 # device-trees -core-$(CONFIG_BUILTIN_DTB) += arch/mips/boot/dts/ - -%.dtb %.dtb.S %.dtb.o: | scripts - $(Q)$(MAKE) $(build)=arch/mips/boot/dts arch/mips/boot/dts/$@ - -PHONY += dtbs -dtbs: scripts - $(Q)$(MAKE) $(build)=arch/mips/boot/dts - -PHONY += dtbs_install -dtbs_install: - $(Q)$(MAKE) $(dtbinst)=arch/mips/boot/dts +core-y += arch/mips/boot/dts/ archprepare: ifdef CONFIG_MIPS32_N32 @@ -461,8 +450,6 @@ define archhelp echo ' uImage.lzma - U-Boot image (lzma)' echo ' uImage.lzo - U-Boot image (lzo)' echo ' uzImage.bin - U-Boot image (self-extracting)' - echo ' dtbs - Device-tree blobs for enabled boards' - echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' echo echo ' These will be default as appropriate for a configured platform.' echo diff --git a/arch/nds32/Makefile b/arch/nds32/Makefile index 3509fac10491..9f525ed70049 100644 --- a/arch/nds32/Makefile +++ b/arch/nds32/Makefile @@ -47,7 +47,7 @@ CHECKFLAGS += -D__NDS32_EB__ endif boot := arch/nds32/boot -core-$(BUILTIN_DTB) += $(boot)/dts/ +core-y += $(boot)/dts/ .PHONY: FORCE diff --git a/arch/nios2/Makefile b/arch/nios2/Makefile index 8673a79dca9c..52c03e60b114 100644 --- a/arch/nios2/Makefile +++ b/arch/nios2/Makefile @@ -49,21 +49,13 @@ BOOT_TARGETS = vmImage zImage PHONY += $(BOOT_TARGETS) install KBUILD_IMAGE := $(nios2-boot)/vmImage -ifneq ($(CONFIG_NIOS2_DTB_SOURCE),"") - core-y += $(nios2-boot)/ -endif +core-y += $(nios2-boot)/dts/ all: vmImage archclean: $(Q)$(MAKE) $(clean)=$(nios2-boot) -%.dtb: | scripts - $(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@ - -dtbs: - $(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@ - $(BOOT_TARGETS): vmlinux $(Q)$(MAKE) $(build)=$(nios2-boot) $(nios2-boot)/$@ @@ -76,5 +68,4 @@ define archhelp echo ' (your) ~/bin/$(INSTALLKERNEL) or' echo ' (distribution) /sbin/$(INSTALLKERNEL) or' echo ' install to $$(INSTALL_PATH)' - echo ' dtbs - Build device tree blobs for enabled boards' endef diff --git a/arch/nios2/boot/Makefile b/arch/nios2/boot/Makefile index 2ba23a679732..37dfc7e584bc 100644 --- a/arch/nios2/boot/Makefile +++ b/arch/nios2/boot/Makefile @@ -31,27 +31,5 @@ $(obj)/zImage: $(obj)/compressed/vmlinux FORCE $(obj)/compressed/vmlinux: $(obj)/vmlinux.gz FORCE $(Q)$(MAKE) $(build)=$(obj)/compressed $@ -# Rule to build device tree blobs -DTB_SRC := $(patsubst "%",%,$(CONFIG_NIOS2_DTB_SOURCE)) - -# Make sure the generated dtb gets removed during clean -extra-$(CONFIG_NIOS2_DTB_SOURCE_BOOL) += system.dtb - -$(obj)/system.dtb: $(DTB_SRC) FORCE - $(call cmd,dtc) - -# Ensure system.dtb exists -$(obj)/linked_dtb.o: $(obj)/system.dtb - -obj-$(CONFIG_NIOS2_DTB_SOURCE_BOOL) += linked_dtb.o - -targets += $(dtb-y) - -# Rule to build device tree blobs with make command -$(obj)/%.dtb: $(src)/dts/%.dts FORCE - $(call if_changed_dep,dtc) - -$(obj)/dtbs: $(addprefix $(obj)/, $(dtb-y)) - install: sh $(srctree)/$(src)/install.sh $(KERNELRELEASE) $(BOOTIMAGE) System.map "$(INSTALL_PATH)" diff --git a/arch/nios2/boot/dts/Makefile b/arch/nios2/boot/dts/Makefile new file mode 100644 index 000000000000..a91a0b09be63 --- /dev/null +++ b/arch/nios2/boot/dts/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0 + +obj-y := $(patsubst "%.dts",%.dtb.o,$(CONFIG_NIOS2_DTB_SOURCE)) + +dtstree := $(srctree)/$(src) +dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) diff --git a/arch/nios2/boot/linked_dtb.S b/arch/nios2/boot/linked_dtb.S deleted file mode 100644 index 071f922db338..000000000000 --- a/arch/nios2/boot/linked_dtb.S +++ /dev/null @@ -1,19 +0,0 @@ -/* - * Copyright (C) 2011 Thomas Chou <thomas@wytron.com.tw> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - */ -.section .dtb.init.rodata,"a" -.incbin "arch/nios2/boot/system.dtb" diff --git a/arch/nios2/kernel/cpuinfo.c b/arch/nios2/kernel/cpuinfo.c index 93207718bb22..ccc1d2a15a0a 100644 --- a/arch/nios2/kernel/cpuinfo.c +++ b/arch/nios2/kernel/cpuinfo.c @@ -47,7 +47,7 @@ void __init setup_cpuinfo(void) const char *str; int len; - cpu = of_find_node_by_type(NULL, "cpu"); + cpu = of_get_cpu_node(0, NULL); if (!cpu) panic("%s: No CPU found in devicetree!\n", __func__); @@ -120,6 +120,8 @@ void __init setup_cpuinfo(void) cpuinfo.reset_addr = fcpu(cpu, "altr,reset-addr"); cpuinfo.exception_addr = fcpu(cpu, "altr,exception-addr"); cpuinfo.fast_tlb_miss_exc_addr = fcpu(cpu, "altr,fast-tlb-miss-addr"); + + of_node_put(cpu); } #ifdef CONFIG_PROC_FS diff --git a/arch/nios2/kernel/time.c b/arch/nios2/kernel/time.c index ab88b6dd4679..54467d0085a1 100644 --- a/arch/nios2/kernel/time.c +++ b/arch/nios2/kernel/time.c @@ -214,12 +214,12 @@ static int __init nios2_timer_get_base_and_freq(struct device_node *np, { *base = of_iomap(np, 0); if (!*base) { - pr_crit("Unable to map reg for %s\n", np->name); + pr_crit("Unable to map reg for %pOFn\n", np); return -ENXIO; } if (of_property_read_u32(np, "clock-frequency", freq)) { - pr_crit("Unable to get %s clock frequency\n", np->name); + pr_crit("Unable to get %pOFn clock frequency\n", np); return -EINVAL; } diff --git a/arch/openrisc/kernel/setup.c b/arch/openrisc/kernel/setup.c index 9d28ab14d139..e17fcd83120f 100644 --- a/arch/openrisc/kernel/setup.c +++ b/arch/openrisc/kernel/setup.c @@ -158,9 +158,8 @@ static struct device_node *setup_find_cpu_node(int cpu) { u32 hwid; struct device_node *cpun; - struct device_node *cpus = of_find_node_by_path("/cpus"); - for_each_available_child_of_node(cpus, cpun) { + for_each_of_cpu_node(cpun) { if (of_property_read_u32(cpun, "reg", &hwid)) continue; if (hwid == cpu) diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index 11a1acba164a..42f225f6ec93 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -293,9 +293,6 @@ $(BOOT_TARGETS2): vmlinux bootwrapper_install: $(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@) -%.dtb: scripts - $(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@) - # Used to create 'merged defconfigs' # To use it $(call) it with the first argument as the base defconfig # and the second argument as a space separated list of .config files to merge, diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile index 0fb96c26136f..bca5c23767df 100644 --- a/arch/powerpc/boot/Makefile +++ b/arch/powerpc/boot/Makefile @@ -304,9 +304,9 @@ image-$(CONFIG_PPC_ADDER875) += cuImage.adder875-uboot \ dtbImage.adder875-redboot # Board ports in arch/powerpc/platform/52xx/Kconfig -image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200 lite5200.dtb -image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200b lite5200b.dtb -image-$(CONFIG_PPC_MEDIA5200) += cuImage.media5200 media5200.dtb +image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200 +image-$(CONFIG_PPC_LITE5200) += cuImage.lite5200b +image-$(CONFIG_PPC_MEDIA5200) += cuImage.media5200 # Board ports in arch/powerpc/platform/82xx/Kconfig image-$(CONFIG_MPC8272_ADS) += cuImage.mpc8272ads @@ -381,11 +381,11 @@ $(addprefix $(obj)/, $(sort $(filter zImage.%, $(image-y)))): vmlinux $(wrapperb $(call if_changed,wrap,$(subst $(obj)/zImage.,,$@)) # dtbImage% - a dtbImage is a zImage with an embedded device tree blob -$(obj)/dtbImage.initrd.%: vmlinux $(wrapperbits) $(obj)/%.dtb FORCE - $(call if_changed,wrap,$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz) +$(obj)/dtbImage.initrd.%: vmlinux $(wrapperbits) $(obj)/dts/%.dtb FORCE + $(call if_changed,wrap,$*,,$(obj)/dts/$*.dtb,$(obj)/ramdisk.image.gz) -$(obj)/dtbImage.%: vmlinux $(wrapperbits) $(obj)/%.dtb FORCE - $(call if_changed,wrap,$*,,$(obj)/$*.dtb) +$(obj)/dtbImage.%: vmlinux $(wrapperbits) $(obj)/dts/%.dtb FORCE + $(call if_changed,wrap,$*,,$(obj)/dts/$*.dtb) # This cannot be in the root of $(src) as the zImage rule always adds a $(obj) # prefix @@ -395,36 +395,33 @@ $(obj)/vmlinux.strip: vmlinux $(obj)/uImage: vmlinux $(wrapperbits) FORCE $(call if_changed,wrap,uboot) -$(obj)/uImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE - $(call if_changed,wrap,uboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz) +$(obj)/uImage.initrd.%: vmlinux $(obj)/dts/%.dtb $(wrapperbits) FORCE + $(call if_changed,wrap,uboot-$*,,$(obj)/dts/$*.dtb,$(obj)/ramdisk.image.gz) -$(obj)/uImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE - $(call if_changed,wrap,uboot-$*,,$(obj)/$*.dtb) +$(obj)/uImage.%: vmlinux $(obj)/dts/%.dtb $(wrapperbits) FORCE + $(call if_changed,wrap,uboot-$*,,$(obj)/dts/$*.dtb) -$(obj)/cuImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE - $(call if_changed,wrap,cuboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz) +$(obj)/cuImage.initrd.%: vmlinux $(obj)/dts/%.dtb $(wrapperbits) FORCE + $(call if_changed,wrap,cuboot-$*,,$(obj)/dts/$*.dtb,$(obj)/ramdisk.image.gz) -$(obj)/cuImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE - $(call if_changed,wrap,cuboot-$*,,$(obj)/$*.dtb) +$(obj)/cuImage.%: vmlinux $(obj)/dts/%.dtb $(wrapperbits) FORCE + $(call if_changed,wrap,cuboot-$*,,$(obj)/dts/$*.dtb) -$(obj)/simpleImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE - $(call if_changed,wrap,simpleboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz) +$(obj)/simpleImage.initrd.%: vmlinux $(obj)/dts/%.dtb $(wrapperbits) FORCE + $(call if_changed,wrap,simpleboot-$*,,$(obj)/dts/$*.dtb,$(obj)/ramdisk.image.gz) -$(obj)/simpleImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE - $(call if_changed,wrap,simpleboot-$*,,$(obj)/$*.dtb) +$(obj)/simpleImage.%: vmlinux $(obj)/dts/%.dtb $(wrapperbits) FORCE + $(call if_changed,wrap,simpleboot-$*,,$(obj)/dts/$*.dtb) -$(obj)/treeImage.initrd.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE - $(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb,$(obj)/ramdisk.image.gz) +$(obj)/treeImage.initrd.%: vmlinux $(obj)/dts/%.dtb $(wrapperbits) FORCE + $(call if_changed,wrap,treeboot-$*,,$(obj)/dts/$*.dtb,$(obj)/ramdisk.image.gz) -$(obj)/treeImage.%: vmlinux $(obj)/%.dtb $(wrapperbits) FORCE - $(call if_changed,wrap,treeboot-$*,,$(obj)/$*.dtb) +$(obj)/treeImage.%: vmlinux $(obj)/dts/%.dtb $(wrapperbits) FORCE + $(call if_changed,wrap,treeboot-$*,,$(obj)/dts/$*.dtb) -# Rule to build device tree blobs -$(obj)/%.dtb: $(src)/dts/%.dts FORCE - $(call if_changed_dep,dtc) - -$(obj)/%.dtb: $(src)/dts/fsl/%.dts FORCE - $(call if_changed_dep,dtc) +# Needed for the above targets to work with dts/fsl/ files +$(obj)/dts/%.dtb: $(obj)/dts/fsl/%.dtb + @cp $< $@ # If there isn't a platform selected then just strip the vmlinux. ifeq (,$(image-y)) diff --git a/arch/powerpc/boot/dts/Makefile b/arch/powerpc/boot/dts/Makefile new file mode 100644 index 000000000000..fb335d05aae8 --- /dev/null +++ b/arch/powerpc/boot/dts/Makefile @@ -0,0 +1,6 @@ +# SPDX-License-Identifier: GPL-2.0 + +subdir-y += fsl + +dtstree := $(srctree)/$(src) +dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) diff --git a/arch/powerpc/boot/dts/fsl/Makefile b/arch/powerpc/boot/dts/fsl/Makefile new file mode 100644 index 000000000000..3bae982641e9 --- /dev/null +++ b/arch/powerpc/boot/dts/fsl/Makefile @@ -0,0 +1,4 @@ +# SPDX-License-Identifier: GPL-2.0 + +dtstree := $(srctree)/$(src) +dtb-$(CONFIG_OF_ALL_DTBS) := $(patsubst $(dtstree)/%.dts,%.dtb, $(wildcard $(dtstree)/*.dts)) diff --git a/arch/powerpc/boot/libfdt_env.h b/arch/powerpc/boot/libfdt_env.h index 2a0c8b1bf147..2abc8e83b95e 100644 --- a/arch/powerpc/boot/libfdt_env.h +++ b/arch/powerpc/boot/libfdt_env.h @@ -5,6 +5,8 @@ #include <types.h> #include <string.h> +#define INT_MAX ((int)(~0U>>1)) + #include "of.h" typedef unsigned long uintptr_t; diff --git a/arch/powerpc/platforms/4xx/soc.c b/arch/powerpc/platforms/4xx/soc.c index 5e36508b2a70..1844bf502fcf 100644 --- a/arch/powerpc/platforms/4xx/soc.c +++ b/arch/powerpc/platforms/4xx/soc.c @@ -200,7 +200,7 @@ void ppc4xx_reset_system(char *cmd) u32 reset_type = DBCR0_RST_SYSTEM; const u32 *prop; - np = of_find_node_by_type(NULL, "cpu"); + np = of_get_cpu_node(0, NULL); if (np) { prop = of_get_property(np, "reset-type", NULL); diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c index 027c42d8966c..f1c805c8adbc 100644 --- a/arch/powerpc/platforms/8xx/m8xx_setup.c +++ b/arch/powerpc/platforms/8xx/m8xx_setup.c @@ -66,7 +66,7 @@ static int __init get_freq(char *name, unsigned long *val) int found = 0; /* The cpu node should have timebase and clock frequency properties */ - cpu = of_find_node_by_type(NULL, "cpu"); + cpu = of_get_cpu_node(0, NULL); if (cpu) { fp = of_get_property(cpu, name, NULL); @@ -147,8 +147,9 @@ void __init mpc8xx_calibrate_decr(void) * we have to enable the timebase). The decrementer interrupt * is wired into the vector table, nothing to do here for that. */ - cpu = of_find_node_by_type(NULL, "cpu"); + cpu = of_get_cpu_node(0, NULL); virq= irq_of_parse_and_map(cpu, 0); + of_node_put(cpu); irq = virq_to_hw(virq); sys_tmr2 = immr_map(im_sit); diff --git a/arch/powerpc/platforms/powermac/feature.c b/arch/powerpc/platforms/powermac/feature.c index 4eb8cb38fc69..ed2f54b3f173 100644 --- a/arch/powerpc/platforms/powermac/feature.c +++ b/arch/powerpc/platforms/powermac/feature.c @@ -1049,7 +1049,6 @@ core99_reset_cpu(struct device_node *node, long param, long value) unsigned long flags; struct macio_chip *macio; struct device_node *np; - struct device_node *cpus; const int dflt_reset_lines[] = { KL_GPIO_RESET_CPU0, KL_GPIO_RESET_CPU1, KL_GPIO_RESET_CPU2, @@ -1059,10 +1058,7 @@ core99_reset_cpu(struct device_node *node, long param, long value) if (macio->type != macio_keylargo) return -ENODEV; - cpus = of_find_node_by_path("/cpus"); - if (cpus == NULL) - return -ENODEV; - for (np = cpus->child; np != NULL; np = np->sibling) { + for_each_of_cpu_node(np) { const u32 *num = of_get_property(np, "reg", NULL); const u32 *rst = of_get_property(np, "soft-reset", NULL); if (num == NULL || rst == NULL) @@ -1072,7 +1068,6 @@ core99_reset_cpu(struct device_node *node, long param, long value) break; } } - of_node_put(cpus); if (np == NULL || reset_io == 0) reset_io = dflt_reset_lines[param]; @@ -1504,16 +1499,12 @@ static long g5_reset_cpu(struct device_node *node, long param, long value) unsigned long flags; struct macio_chip *macio; struct device_node *np; - struct device_node *cpus; macio = &macio_chips[0]; if (macio->type != macio_keylargo2 && macio->type != macio_shasta) return -ENODEV; - cpus = of_find_node_by_path("/cpus"); - if (cpus == NULL) - return -ENODEV; - for (np = cpus->child; np != NULL; np = np->sibling) { + for_each_of_cpu_node(np) { const u32 *num = of_get_property(np, "reg", NULL); const u32 *rst = of_get_property(np, "soft-reset", NULL); if (num == NULL || rst == NULL) @@ -1523,7 +1514,6 @@ static long g5_reset_cpu(struct device_node *node, long param, long value) break; } } - of_node_put(cpus); if (np == NULL || reset_io == 0) return -ENODEV; @@ -2515,31 +2505,26 @@ found: * supposed to be set when not supported, but I'm not very confident * that all Apple OF revs did it properly, I do it the paranoid way. */ - while (uninorth_base && uninorth_rev > 3) { - struct device_node *cpus = of_find_node_by_path("/cpus"); + if (uninorth_base && uninorth_rev > 3) { struct device_node *np; - if (!cpus || !cpus->child) { - printk(KERN_WARNING "Can't find CPU(s) in device tree !\n"); - of_node_put(cpus); - break; - } - np = cpus->child; - /* Nap mode not supported on SMP */ - if (np->sibling) { - of_node_put(cpus); - break; - } - /* Nap mode not supported if flush-on-lock property is present */ - if (of_get_property(np, "flush-on-lock", NULL)) { - of_node_put(cpus); - break; + for_each_of_cpu_node(np) { + int cpu_count = 1; + + /* Nap mode not supported on SMP */ + if (of_get_property(np, "flush-on-lock", NULL) || + (cpu_count > 1)) { + powersave_nap = 0; + of_node_put(np); + break; + } + + cpu_count++; + powersave_nap = 1; } - of_node_put(cpus); - powersave_nap = 1; - printk(KERN_DEBUG "Processor NAP mode on idle enabled.\n"); - break; } + if (powersave_nap) + printk(KERN_DEBUG "Processor NAP mode on idle enabled.\n"); /* On CPUs that support it (750FX), lowspeed by default during * NAP mode diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 3a529fcdae97..2f00e3daafb0 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -243,10 +243,9 @@ static void __init l2cr_init(void) { /* Checks "l2cr-value" property in the registry */ if (cpu_has_feature(CPU_FTR_L2CR)) { - struct device_node *np = of_find_node_by_name(NULL, "cpus"); - if (!np) - np = of_find_node_by_type(NULL, "cpu"); - if (np) { + struct device_node *np; + + for_each_of_cpu_node(np) { const unsigned int *l2cr = of_get_property(np, "l2cr-value", NULL); if (l2cr) { @@ -256,6 +255,7 @@ static void __init l2cr_init(void) _set_L2CR(ppc_override_l2cr_value); } of_node_put(np); + break; } } @@ -279,8 +279,8 @@ static void __init pmac_setup_arch(void) /* Set loops_per_jiffy to a half-way reasonable value, for use until calibrate_delay gets called. */ loops_per_jiffy = 50000000 / HZ; - cpu = of_find_node_by_type(NULL, "cpu"); - if (cpu != NULL) { + + for_each_of_cpu_node(cpu) { fp = of_get_property(cpu, "clock-frequency", NULL); if (fp != NULL) { if (pvr >= 0x30 && pvr < 0x80) @@ -292,8 +292,9 @@ static void __init pmac_setup_arch(void) else /* 601, 603, etc. */ loops_per_jiffy = *fp / (2 * HZ); + of_node_put(cpu); + break; } - of_node_put(cpu); } /* See if newworld or oldworld */ diff --git a/arch/sh/boards/of-generic.c b/arch/sh/boards/of-generic.c index 26789ad28193..cde370cad4ae 100644 --- a/arch/sh/boards/of-generic.c +++ b/arch/sh/boards/of-generic.c @@ -64,7 +64,7 @@ static void sh_of_smp_probe(void) init_cpu_possible(cpumask_of(0)); - for_each_node_by_type(np, "cpu") { + for_each_of_cpu_node(np) { const __be32 *cell = of_get_property(np, "reg", NULL); u64 id = -1; if (cell) id = of_read_number(cell, of_n_addr_cells(np)); diff --git a/arch/sparc/include/asm/prom.h b/arch/sparc/include/asm/prom.h index d955c8df62d6..1902db27ff4b 100644 --- a/arch/sparc/include/asm/prom.h +++ b/arch/sparc/include/asm/prom.h @@ -24,9 +24,6 @@ #include <linux/atomic.h> #include <linux/irqdomain.h> -#define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 2 -#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1 - #define of_compat_cmp(s1, s2, l) strncmp((s1), (s2), (l)) #define of_prop_cmp(s1, s2) strcasecmp((s1), (s2)) #define of_node_cmp(s1, s2) strcmp((s1), (s2)) diff --git a/arch/x86/kernel/devicetree.c b/arch/x86/kernel/devicetree.c index f39f3a06c26f..7299dcbf8e85 100644 --- a/arch/x86/kernel/devicetree.c +++ b/arch/x86/kernel/devicetree.c @@ -140,7 +140,7 @@ static void __init dtb_cpu_setup(void) int ret; version = GET_APIC_VERSION(apic_read(APIC_LVR)); - for_each_node_by_type(dn, "cpu") { + for_each_of_cpu_node(dn) { ret = of_property_read_u32(dn, "reg", &apic_id); if (ret < 0) { pr_warn("%pOF: missing local APIC ID\n", dn); diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile index d67e30faff9c..be060dfb1cc3 100644 --- a/arch/xtensa/Makefile +++ b/arch/xtensa/Makefile @@ -80,28 +80,18 @@ LIBGCC := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name) head-y := arch/xtensa/kernel/head.o core-y += arch/xtensa/kernel/ arch/xtensa/mm/ core-y += $(buildvar) $(buildplf) +core-y += arch/xtensa/boot/dts/ libs-y += arch/xtensa/lib/ $(LIBGCC) drivers-$(CONFIG_OPROFILE) += arch/xtensa/oprofile/ -ifneq ($(CONFIG_BUILTIN_DTB),"") -core-$(CONFIG_OF) += arch/xtensa/boot/dts/ -endif - boot := arch/xtensa/boot all Image zImage uImage: vmlinux $(Q)$(MAKE) $(build)=$(boot) $@ -%.dtb: - $(Q)$(MAKE) $(build)=$(boot)/dts $(boot)/dts/$@ - -dtbs: scripts - $(Q)$(MAKE) $(build)=$(boot)/dts - define archhelp @echo '* Image - Kernel ELF image with reset vector' @echo '* zImage - Compressed kernel image (arch/xtensa/boot/images/zImage.*)' @echo '* uImage - U-Boot wrapped image' - @echo ' dtbs - Build device tree blobs for enabled boards' endef diff --git a/arch/xtensa/platforms/xtfpga/setup.c b/arch/xtensa/platforms/xtfpga/setup.c index 42285f35d313..820e8738af11 100644 --- a/arch/xtensa/platforms/xtfpga/setup.c +++ b/arch/xtensa/platforms/xtfpga/setup.c @@ -94,7 +94,7 @@ static void __init xtfpga_clk_setup(struct device_node *np) u32 freq; if (!base) { - pr_err("%s: invalid address\n", np->name); + pr_err("%pOFn: invalid address\n", np); return; } @@ -103,12 +103,12 @@ static void __init xtfpga_clk_setup(struct device_node *np) clk = clk_register_fixed_rate(NULL, np->name, NULL, 0, freq); if (IS_ERR(clk)) { - pr_err("%s: clk registration failed\n", np->name); + pr_err("%pOFn: clk registration failed\n", np); return; } if (of_clk_add_provider(np, of_clk_src_simple_get, clk)) { - pr_err("%s: clk provider registration failed\n", np->name); + pr_err("%pOFn: clk provider registration failed\n", np); return; } } |