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path: root/arch/powerpc/include/asm/ppc.h
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2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2018-04-06powerpc: mpc8xx: Change CONFIG_8xx to CONFIG_MPC8xxChristophe Leroy
CONFIG_8xx doesn't mean much outside of arch/powerpc/ This patch renames it CONFIG_MPC8xx just like CONFIG_MPC85xx etc ... It also renames 8xx_immap.h to immap_8xx.h to be consistent with other file names. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-04-06powerpc: mpc8xx: remove get_immr() argumentChristophe Leroy
get_immr() is always called with 0 as an argument, so it is useless. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2018-04-06powerpc: mpc8xx: make get_immr() independent of CONFIG_8xxChristophe Leroy
SPRN_IMMR is defined regardless of the CPU. Therefore, there is no point in enclosing get_immr() inside a #ifdef CONFIG_8xx As it a static inline function, it will in any case only be compiled in functons using it. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-08-26powerpc: Rework interrupt_init_cpu()Tom Rini
The function interrupt_init_cpu() is given an int return type but does not return anything but 0. Rework this to be a void function. Signed-off-by: Tom Rini <trini@konsulko.com> Acked-by: Mario Six <mario.six@gdsys.cc>
2017-07-23powerpc, 8xx: fix missing function declarations.Christophe Leroy
Add missing .h and add missing declarations in .h Declare local functions as static. Make interrupt_init_cpu function signatures consistent with how decrementer_count is declared. Based on warnings reported by 'make C=2' Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> [trini: drop cpu_init_f as 8xx/83xx are different from the rest, rework interrupt_init_cpu/decrementer_count] Signed-off-by: Tom Rini <trini@konsulko.com>
2017-07-22powerpc: move get_pvr() and get_svr() into CChristophe Leroy
Avoid unnecessary assembly functions when they can easily be written in C. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-07-22powerpc, 8xx: move cache helper into CChristophe Leroy
Avoid unnecessary assembly functions when they can easily be written in C. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-07-22powerpc, 8xx: move get_immr() into CChristophe Leroy
Avoid unnecessary assembly functions when they can easily be written in C. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-07-22powerpc: Remove unneccessary #ifdefs in reginfoChristophe Leroy
reginfo command is calling mpc8xx_reginfo(), mpc85xx_reginfo() or mpc86xx_reginfo() based on CONFIG_ symbol. As those 3 functions can't me defined at the same time, let's rename them print_reginfo() to avoid the #ifdefs The name is kept generic as it is not at all dependent on powerpc arch and any other arch could want to also print such information. In addition, as the Makefile compiles cmd/reginfo.c only when CONFIG_CMD_REGINFO is set, there is no need to enclose the U_BOOT_CMD definition inside a #ifdef CONFIG_CMD_REGINFO Lets all remove the #ifdefs around the U_BOOT_CMD as this file is only compiled when CONFIG_CMD_REGINFO is defined Finally, this is a PowerPC-only command, disable it on a number of non-PowerPC platforms. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Tom Rini <trini@konsulko.com>
2017-07-22powerpc: move set_msr() and get_msr() into .hChristophe Leroy
set_msr() and get_msr() are defined and used twice. This patch moves them into ppc.h Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-07-08powerpc, 8xx: Migrate to KconfigChristophe Leroy
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-07-08powerpc: Partialy restore core of mpc8xxChristophe Leroy
CS Systemes d'Information (CSSI) manufactures 8xx boards for critical communication systems. Those boards have been running U-Boot since 2010 and will have to be maintained until at least 2027. commit 5b8e76c35ec312a3f73126bd1a2d2c0965b98a9f ("powerpc, 8xx: remove support for 8xx") orphaned those boards by removing support for the mpc8xx CPU. This commit partially restores support for the 8xx, with the following limitations: - Restores support for MPC866 and MPC885 only - Does not restore IDE, PCMCIA, I2C, USB - Does not restore examples - Does not restore POST - Does not restore Ethernet on SCC - Does not restore console on SCC - Does not restore bedbug and kgdb support As the 866 and 885 do not support the following features, they are not restored either: - VIDEO / LCD - RTC clock The CPM uCODE patch is not restored either, because: - 866 and 885 already have support for I2C and SPI relocation without a uCODE patch - relocation of SMC, I2C or SPI is only needed for using SCCs for Ethernet or QMC The dynamic setup/calculation of clocks is removed, we expect the target being use with the clock and PLPRCR register defined in the configuration. All the clock settings for 8xx prior to 866 is removed as well as we now only support 866 and 885. This code is mature and addresses mature boards. Therefore all code enclosed in '#if 0/#endif' and '#if XX_DEBUG/#endif' is unneeded. The following files are not restored by this patch: - arch/powerpc/cpu/mpc8xx/bedbug_860.c - arch/powerpc/cpu/mpc8xx/fec.h - arch/powerpc/cpu/mpc8xx/kgdb.S - arch/powerpc/cpu/mpc8xx/plprcr_write.S - arch/powerpc/cpu/mpc8xx/scc.c - arch/powerpc/cpu/mpc8xx/upatch.c - arch/powerpc/cpu/mpc8xx/video.c - arch/powerpc/include/asm/status_led.h - arch/powerpc/lib/ide.c - arch/powerpc/lib/ide.h - doc/README.MPC866 - drivers/pcmcia/mpc8xx_pcmcia.c - drivers/rtc/mpc8xx.c - drivers/usb/gadget/mpc8xx_udc.c - drivers/video/mpc8xx_lcd.c - examples/standalone/test_burst.c - examples/standalone/test_burst.h - examples/standalone/test_burst_lib.S - examples/standalone/timer.c - include/mpc823_lcd.h - include/usb/mpc8xx_udc.h - post/cpu/mpc8xx/Makefile - post/cpu/mpc8xx/cache.c - post/cpu/mpc8xx/cache_8xx.S - post/cpu/mpc8xx/ether.c - post/cpu/mpc8xx/spr.c - post/cpu/mpc8xx/uart.c - post/cpu/mpc8xx/usb.c - post/cpu/mpc8xx/watchdog.c Some of the restored files are not located in a proper location. In order to keep traceability of the changes, they will be moved to their correct location and moved to Kconfig in a followup patch. This patch also declares CSSI as point of contact for the update of the 8xx platform, as those boards are the only ones still being maintained on the 8xx area. A later patch will add those boards to the tree. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-07-03powerpc: remove 4xx supportHeiko Schocher
There was for long time no activity in the 4xx area. We need to go further and convert to Kconfig, but it turned out, nobody is interested anymore in 4xx, so remove it. Signed-off-by: Heiko Schocher <hs@denx.de>
2017-06-16powerpc, 5xxx, 512x: remove support for mpc5xxx and mpc512xHeiko Schocher
There was for long time no activity in the mpx5xxx area. We need to go further and convert to Kconfig, but it turned out, nobody is interested anymore in mpc5xxx, so remove it. Signed-off-by: Heiko Schocher <hs@denx.de>
2017-06-12powerpc, 5xx: remove support for 5xxHeiko Schocher
There was for long time no activity in the 5xx area. We need to go further and convert to Kconfig, but it turned out, nobody is interested anymore in 5xx, so remove it. Signed-off-by: Heiko Schocher <hs@denx.de>
2017-06-12powerpc, 8260: remove support for mpc8260Heiko Schocher
There was for long time no activity in the 8260 area. We need to go further and convert to Kconfig, but it turned out, nobody is interested anymore in 8260, so remove it. Signed-off-by: Heiko Schocher <hs@denx.de>
2017-06-12powerpc, 8xx: remove support for 8xxHeiko Schocher
There was for long time no activity in the 8xx area. We need to go further and convert to Kconfig, but it turned out, nobody is interested anymore in 8xx, so remove it (with a heavy heart, knowing that I remove here the root of U-Boot). Signed-off-by: Heiko Schocher <hs@denx.de>
2017-06-05common: freescale: Move arch-specific declarationsSimon Glass
The declarations should not be in common.h. Move them to the arch-specific headers. Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Fixup thinko defined(FSL_LSCH3) -> defined(CONFIG_FSL_LSCH3)] Signed-off-by: Tom Rini <trini@konsulko.com>
2017-06-05common: powerpc: Move arch-specific headersSimon Glass
Set up a new asm/ppc.h header file to hold this arch-specific stuff. It should not be in common.h. It probably should be refactored to use asm/arch instead, but that is a job for the maintainer. Signed-off-by: Simon Glass <sjg@chromium.org>