kernel/linux.git/arch/powerpc/boot/oflib.c, branch v6.12.80

treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152

2019-05-30T18:26:32+00:00

Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner Reviewed-by: Allison Randal Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman

powerpc/boot: Define a routine to enter prom

2014-04-28T07:36:08+00:00

This patch defines a 'prom' routine similar to 'enter_prom' in the kernel. The difference is in the MSR which is built before entering prom. Big endian order is enforced as in the kernel but 32bit mode is not. It prepares ground for the next patches which will introduce Little endian order. Signed-off-by: Cédric Le Goater Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Fix compile warning in 64bit

2014-04-28T07:35:51+00:00

arch/powerpc/boot/oflib.c:211:9: warning: cast to pointer from integer of \ different size [-Wint-to-pointer-cast] return (phandle) of_call_prom("finddevice", 1, 1, name); This is a work around. The definite solution would be to define the phandle typedef as a u32, as in the kernel, but this would break the device tree ops API. Let it be for the moment. Signed-off-by: Cédric Le Goater Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Define typedef ihandle as u32

2014-04-28T07:35:47+00:00

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

2014-04-28T07:35:43+00:00

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

2014-04-28T07:35:39+00:00

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

2014-04-28T07:35:35+00:00

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 prom_arg_t in oflib

2014-04-28T07:35:31+00:00

This patch updates the wrapper code to converge with the kernel code in prom_init. Signed-off-by: Cédric Le Goater Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Use a common prom_args struct in oflib

2014-04-28T07:35:26+00:00

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: Change the default link address for pSeries zImage kernels

2008-07-01T01:28:32+00:00

Currently we set the start of the .text section to be 4Mb for pSeries. In situations where the zImage is > 8Mb we'll fail to boot (due to overlapping with OF). Move .text in a zImage from 4MB to 64MB (well past OF). We still will not be able to load large zImage unless we also move OF, to that end, add a note to the zImage ELF to move OF to 32Mb. If this is the very first kernel booted then we'll need to move OF manually by setting real-base. Signed-off-by: Tony Breeds Signed-off-by: Paul Mackerras