kernel/arch/powerpc/boot/of.h, branch linux-4.3.y

libfdt: add fdt type definitions

2015-04-29T22:17:17Z

In preparation for libfdt/dtc update, add the new fdt specific types. Signed-off-by: Rob Herring Cc: Russell King Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Michael Ellerman Cc: linux-arm-kernel@lists.infradead.org Cc: linuxppc-dev@lists.ozlabs.org

powerpc/boot/fdt: Add little-endian support to libfdt wrappers

2015-03-16T07:58:31Z

For epapr-style boot, we may be little-endian. This change implements the proper conversion for fdt*_to_cpu and cpu_to_fdt*. We also need the full cpu_to_* and *_to_cpu macros for this. Signed-off-by: Jeremy Kerr Acked-by: Benjamin Herrenschmidt Signed-off-by: Michael Ellerman

powerpc/boot: Define byteswapping routines for little endian

2014-04-28T07:35:56Z

These are not the most efficient versions of swab but the wrapper does not do much byte swapping. On a big endian cpu, these routines are a no-op. Signed-off-by: Cédric Le Goater Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Define typedef ihandle as u32

2014-04-28T07:35:47Z

This makes ihandle 64bit friendly. Signed-off-by: Cédric Le Goater Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Rework of_claim() to make it 64bit friendly

2014-04-28T07:35:43Z

This patch fixes 64bit compile warnings and updates the wrapper code to converge the kernel code in prom_init. Signed-off-by: Cédric Le Goater Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Add PROM_ERROR define in oflib

2014-04-28T07:35:39Z

This is mostly useful to make to the boot wrapper code closer with the kernel code in prom_init. Signed-off-by: Cédric Le Goater Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Add byteswapping routines in oflib

2014-04-28T07:35:35Z

Values will need to be byte-swapped when calling prom (big endian) from a little endian boot wrapper. Signed-off-by: Cédric Le Goater Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Use a common prom_args struct in oflib

2014-04-28T07:35:26Z

This patch fixes warnings when the wrapper is compiled in 64bit and updates the boot wrapper code related to prom to converge with the kernel code in prom_init. This should make the review of changes easier. The kernel has a different number of possible arguments (10) when entering prom. There does not seem to be any good reason to have 12 in the wrapper, so the patch changes this value to args[10] in the prom_args struct. Signed-off-by: Cédric Le Goater Signed-off-by: Benjamin Herrenschmidt

[POWERPC] Make more OF-related bootwrapper functions available to non-OF platforms

2007-06-28T09:19:28Z

Commit 2e6016133755eb3cc44e8efab92573d23ed75888 split up arch/powerpc/boot/of.c so that some OF functions can be used on platforms that don't want to use the overall OF platform boot code. This is useful on things like PReP which can have an OF implementation which is useful for debugging output, but inadequate for booting. However, that commit didn't export quite enough things to make a usable OF console on a non-OF system. In particular, the device tree manipulation performed to initialize the OF console code must explicitly use the OF device tree, rather than the flattened device tree, even if the system is otherwise booting using a flattened device tree. This makes it so. Signed-off-by: David Gibson Signed-off-by: Paul Mackerras

[POWERPC] Split low-level OF-related bootloader code into separate files

2007-06-14T12:30:15Z

Currently, all OF-related code in the bootloader is contained in of.c. of.c also provides the platform specific things necessary to boot on an OF platform. However, there are platforms (such as PReP) which can include an OF implementation, but are not bootable as pure OF systems. For use by such platforms, this patch splits out the low-level parts of the OF code (call_prom() and various wrappers thereof) into a new oflib.c file. In addition, the code related to bootwrapper console output via OF are moved to a new ofconsole.c file. Both these files are included in the wrapper.a library where they can be used by both full-OF and partial OF platforms. Signed-off-by: David Gibson Signed-off-by: Paul Mackerras