user/sven/linux.git/arch/powerpc/boot/wrapper, branch v4.12

powerpc/boot: Request no dynamic linker for boot wrapper

2016-12-05T02:02:25Z

The boot wrapper performs its own relocations and does not require PT_INTERP segment. However currently we don't tell the linker that. Prior to binutils 2.28 that works OK. But since binutils commit 1a9ccd70f9a7 ("Fix the linker so that it will not silently generate ELF binaries with invalid program headers. Fix readelf to report such invalid binaries.") binutils tries to create a program header segment due to PT_INTERP, and the link fails because there is no space for it: ld: arch/powerpc/boot/zImage.pseries: Not enough room for program headers, try linking with -N ld: final link failed: Bad value So tell the linker not to do that, by passing --no-dynamic-linker. Cc: stable@vger.kernel.org Reported-by: Anton Blanchard Signed-off-by: Nicholas Piggin [mpe: Drop dependency on ld-version.sh and massage change log] Signed-off-by: Michael Ellerman

powerpc/boot: Add XZ support to the wrapper script

2016-09-28T04:32:27Z

This modifies the wrapper script so that the -Z option takes an argument to specify the compression type. It can either be 'gz', 'xz' or 'none'. The legazy --no-gzip and -z options are still supported and will set the compression to none and gzip respectively, but they are not documented. Only XZ -6 is used for compression rather than XZ -9. Using compression levels higher than 6 requires the decompressor to build a large (64MB) dictionary when decompressing and some environments cannot satisfy such large allocations (e.g. POWER 6 LPAR partition firmware). Signed-off-by: Oliver O'Halloran Signed-off-by: Michael Ellerman

powerpc/86xx: Add support for Emerson/Artesyn MVME7100

2016-07-09T01:01:27Z

Add support for the Artesyn MVME7100 Single Board Computer. The MVME7100 is a 6U form factor VME64 computer with: - A two e600 cores Freescale MPC8641D CPU - 2 GB of DDR2 onboard memory - Four Gigabit Ethernets - Five 16550 compatible UARTs - One USB 2.0 port - Two PCI/PCI eXpress Mezzanine Card (PMC/XMC) Slots - A DS1375 Real Time Clock (RTC) - 512 KB of Non-Volatile Memory (NVRAM) - Two 64 KB EEPROMs - 128 MB NOR and 4/8 GB NAND Flash This patch is based on linux-4.7-rc1 and has been only boot tested. Limitations: This patch covers only models 171 and 173 No plans to support CPLD timers Know issues: All four PHYs work in polling mode Configuration is missing for: PCI IDSEL and PCI Interrupt definition Support is missing for: Cache and memory controllers (which are very similar to the 85xx ones but right now I don't know if we can re-use their support) Watchdog, USB, NVRAM, NOR, NAND, EEPROMs, VME, PMC/XMC and RTC Signed-off-by: Alessio Igor Bogani Signed-off-by: Scott Wood

powerpc/boot: allow wrapper to work on non-english system

2015-11-26T11:11:16Z

if the language is not english objdump output is not parsed correctly and format is "". Later, "ld -m $format" fails. This patch adds "LANG=C" to force english output for objdump. Signed-off-by: Laurent Vivier Signed-off-by: Michael Ellerman

powerpc/ps3: Quieten boot wrapper output with run_cmd

2015-10-21T09:06:56Z

Add a boot wrapper script function run_cmd which will run a shell command quietly and only print the output if either V=1 or an error occurs. Also, run the ps3 dd commands with run_cmd to clean up the build output. Signed-off-by: Geoff Levand Signed-off-by: Michael Ellerman

powerpc/boot/wrapper: use the pseries wrapper for zImage.epapr

2015-03-16T07:58:32Z

We'll likely be entering the zImage.epapr as BE, so include the pseries implementation of _zimage_start, which adds the endian fixup magic. Although the endian fixup won't work on Book III-E machines starting LE, the current entry point doesn't support LE anyway, so we shouldn't be breaking anything. Signed-off-by: Jeremy Kerr Signed-off-by: Michael Ellerman

IBM Akebono: Add the Akebono platform

2014-04-30T22:26:26Z

This patch adds support for the IBM Akebono board. Signed-off-by: Alistair Popple Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Add support for 64bit little endian wrapper

2014-04-28T07:36:21Z

The code is only slightly modified : entry points now use the FIXUP_ENDIAN trampoline to switch endian order. The 32bit wrapper is kept for big endian kernels and 64bit is enforced for little endian kernels with a PPC64_BOOT_WRAPPER config option. The linker script is generated using the kernel preprocessor flags to make use of the CONFIG_* definitions and the wrapper script is modified to take into account the new elf64ppc format. Finally, the zImage file is compiled as a position independent executable (-pie) which makes it loadable at any address by the firmware. Signed-off-by: Cédric Le Goater Signed-off-by: Benjamin Herrenschmidt

powerpc/boot: Add a global entry point for pseries

2014-04-28T07:36:17Z

When entering the boot wrapper in little endian, we will need to fix the endian order using a fixup trampoline like in the kernel. This patch overrides the _zimage_start entry point for this purpose. Signed-off-by: Cédric Le Goater Signed-off-by: Benjamin Herrenschmidt

powerpc/embedded6xx: Add support for Motorola/Emerson MVME5100

2014-01-09T23:52:20Z

Add support for the Motorola/Emerson MVME5100 Single Board Computer. The MVME5100 is a 6U form factor VME64 computer with: - A single MPC7410 or MPC750 CPU - A HAWK Processor Host Bridge (CPU to PCI) and MultiProcessor Interrupt Controller (MPIC) - Up to 500Mb of onboard memory - A M48T37 Real Time Clock (RTC) and Non-Volatile Memory chip - Two 16550 compatible UARTS - Two Intel E100 Fast Ethernets - Two PCI Mezzanine Card (PMC) Slots - PPCBug Firmware The HAWK PHB/MPIC is compatible with the MPC10x devices. There is no onboard disk support. This is usually provided by installing a PMC in first PMC slot. This patch revives the board support, it was present in early 2.6 series kernels. The board support in those days was by Matt Porter of MontaVista Software. CSC Australia has around 31 of these boards in service. The kernel in use for the boards is based on 2.6.31. The boards are operated without disks from a file server. This patch is based on linux-3.13-rc2 and has been boot tested. Only boards with 512 Mb of memory are known to work. Signed-off-by: Stephen Chivers Tested-by: Alessio Igor Bogani Signed-off-by: Scott Wood