lwn.git/arch/powerpc/kernel/prom.c, branch next

powerpc: use libfdt accessors for header data

2014-04-30T05:59:18+00:00

With libfdt support, we can take advantage of helper accessors in libfdt for accessing the FDT header data. This makes the code more readable and makes the FDT blob structure more opaque to the kernel. This also prepares for removing struct boot_param_header completely. Signed-off-by: Rob Herring Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Tested-by: Grant Likely Tested-by: Stephen Chivers

of/fdt: move memreserve and dtb memory reservations into core

2014-04-30T05:59:17+00:00

Move the /memreserve/ processing and dtb memory reservations into early_init_fdt_scan_reserved_mem. This converts arm, arm64, and powerpc as they are the only users of early_init_fdt_scan_reserved_mem. memblock_reserve is safe to call on the same region twice, so the reservation check for the dtb in powerpc 32-bit reservations is safe to remove. Signed-off-by: Rob Herring Tested-by: Michal Simek Cc: Russell King Cc: Catalin Marinas Cc: Will Deacon Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Tested-by: Grant Likely Tested-by: Stephen Chivers

of/fdt: create common debugfs

2014-04-30T05:59:16+00:00

Both powerpc and microblaze have the same FDT blob in debugfs feature. Move this to common location and remove the powerpc and microblaze implementations. This feature could become more useful when FDT overlay support is added. This changes the path of the blob from "$arch/flat-device-tree" to "device-tree/flat-device-tree". Signed-off-by: Rob Herring Tested-by: Michal Simek Cc: Michal Simek Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: linuxppc-dev@lists.ozlabs.org Tested-by: Grant Likely Tested-by: Stephen Chivers

of/fdt: update of_get_flat_dt_prop in prep for libfdt

2014-04-30T05:59:15+00:00

Make of_get_flat_dt_prop arguments compatible with libfdt fdt_getprop call in preparation to convert FDT code to use libfdt. Make the return value const and the property length ptr type an int. Signed-off-by: Rob Herring Tested-by: Michal Simek Tested-by: Grant Likely Tested-by: Stephen Chivers

powerpc: fix skipping call to early_init_fdt_scan_reserved_mem

2014-04-30T05:59:04+00:00

The call to early_init_fdt_scan_reserved_mem will be skipped if reserved-ranges is not found. Move the call earlier so that it is called unconditionally. Signed-off-by: Rob Herring Cc: Marek Szyprowski Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: linuxppc-dev@lists.ozlabs.org Tested-by: Stephen Chivers

powerpc/prom: early_init_dt_scan_cpus() updates cpu features only once

2014-04-07T00:33:14+00:00

All our cpu feature updates were done for every CPU in the device-tree, thus overwriting the cputable bits over and over again. Instead do them only for the boot CPU. Signed-off-by: Benjamin Herrenschmidt

powerpc: Make boot_cpuid common between 32 and 64-bit

2014-04-07T00:33:14+00:00

Move the definition to setup-common.c and set the init value to -1 on both 32 and 64-bit (it was 0 on 64-bit). Additionally add a check to prom.c to garantee that the init value has been udpated after the DT scan. Signed-off-by: Benjamin Herrenschmidt

powerpc: Adjust CPU_FTR_SMT on all platforms

2014-04-07T00:33:13+00:00

For historical reasons that code was under #ifdef CONFIG_PPC_PSERIES but it applies equally to all 64-bit platforms. Signed-off-by: Benjamin Herrenschmidt

Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linux

2014-04-02T21:27:15+00:00

Pull devicetree changes from Grant Likely: "Updates to devicetree core code. This branch contains the following notable changes: - add reserved memory binding - make struct device_node a kobject and remove legacy /proc/device-tree - ePAPR conformance fixes - update in-kernel DTC copy to version v1.4.0 - preparatory changes for dynamic device tree overlays - minor bug fixes and documentation changes The most significant change in this branch is the conversion of struct device_node to be a kobject that is exposed via sysfs and removal of the old /proc/device-tree code. This simplifies the device tree handling code and tightens up the lifecycle on device tree nodes. [updated: added fix for dangling select PROC_DEVICETREE]" * tag 'dt-for-linus' of git://git.secretlab.ca/git/linux: (29 commits) dt: Remove dangling "select PROC_DEVICETREE" of: Add support for ePAPR "stdout-path" property of: device_node kobject lifecycle fixes of: only scan for reserved mem when fdt present powerpc: add support for reserved memory defined by device tree arm64: add support for reserved memory defined by device tree of: add missing major vendors of: add vendor prefix for SMSC of: remove /proc/device-tree of/selftest: Add self tests for manipulation of properties of: Make device nodes kobjects so they show up in sysfs arm: add support for reserved memory defined by device tree drivers: of: add support for custom reserved memory drivers drivers: of: add initialization code for dynamic reserved memory drivers: of: add initialization code for static reserved memory of: document bindings for reserved-memory nodes Revert "of: fix of_update_property()" kbuild: dtbs_install: new make target ARM: mvebu: Allows to get the SoC ID even without PCI enabled of: Allows to use the PCI translator without the PCI core ...

powerpc: add support for reserved memory defined by device tree

2014-03-13T10:53:23+00:00

Enable reserved memory initialization from device tree. Signed-off-by: Marek Szyprowski Signed-off-by: Grant Likely