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path: root/arch/powerpc/cpu/mpc8xx/cpu.c
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2018-03-05libfdt: move headers to <linux/libfdt.h> and <linux/libfdt_env.h>Masahiro Yamada
Thomas reported U-Boot failed to build host tools if libfdt-devel package is installed because tools include libfdt headers from /usr/include/ instead of using internal ones. This commit moves the header code: include/libfdt.h -> include/linux/libfdt.h include/libfdt_env.h -> include/linux/libfdt_env.h and replaces include directives: #include <libfdt.h> -> #include <linux/libfdt.h> #include <libfdt_env.h> -> #include <linux/libfdt_env.h> Reported-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2017-07-22powerpc, 8xx: Simplifying check_CPU()Christophe Leroy
All complex case have been removed and we now only support MPC866 and MPC885 families. So check_CPU() can be made a lot simpler. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-07-08powerpc, 8xx: move FEC Ethernet driver in drivers/netChristophe Leroy
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
2017-07-08powerpc, 8xx: Handle checkpatch errors and some of the warnings/checksChristophe Leroy
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Reviewed-by: Heiko Schocher <hs@denx.de>
2017-07-08powerpc, 8xx: Use IO accessors to access IO memoryChristophe 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>
2017-06-12powerpc, 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>
2015-01-05mpc8xx: remove lwmon board supportMasahiro Yamada
This board is still a non-generic board. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Wolfgang Denk <wd@denx.de>
2015-01-05mpc8xx: remove KUP4X, KUP4K board supportMasahiro Yamada
These boards are still non-generic boards. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Klaus Heydeck <heydeck@kieback-peter.de>
2014-07-07mpc8xx: remove fads board supportMasahiro Yamada
These boards are old enough and have no maintainers. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
2013-08-20powerpcv2: Print hardcoded size like print_size() doesShruti Kanetkar
Makes the startup output more consistent Signed-off-by: Shruti Kanetkar <Shruti@Freescale.com> Acked-by: Andy Fleming <afleming@freescale.com> Acked-by: Stefan Roese <sr@denx.de> Acked-by: York Sun <yorksun@freescale.com>
2013-08-20powerpc: Use print_size() where appropriateShruti Kanetkar
Makes the startup output more consistent Signed-off-by: Shruti Kanetkar <Shruti@Freescale.com> Acked-by: Andy Fleming <afleming@freescale.com> Acked-by: York Sun <yorksun@freescale.com>
2013-07-24Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
2013-06-11powerpc: fix 8xx and 82xx type-punning warnings with GCC 4.7Scott Wood
C99's strict aliasing rules are insane to use in low-level code such as a bootloader, but as Wolfgang has rejected -fno-strict-aliasing in the past, add a union so that 16-bit accesses can be performed. Compile-tested only. Signed-off-by: Scott Wood <scottwood@freescale.com> Acked-by: Wolfgang Denk <wd@denx.de>
2013-02-08Clean up libfdt.h includesGerald Van Baren
The libfdt.h file is the definition file for libfdt. It is unnecessary to include other fdt header files (the necessary ones are pulled in by libfdt.h). Signed-off-by: Gerald Van Baren <gvb@unssw.com> Acked-by: Simon Glass <sjg@chromium.org> Acked-by: Stefan Roese <sr@denx.de>
2012-07-30MPC8xx: Fixup warning in arch/powerpc/cpu/mpc8xx/cpu.cMarek Vasut
cpu.c: In function ‘check_CPU’: cpu.c:256:2: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing] Signed-off-by: Marek Vasut <marex@denx.de> Cc: Wolfgang Denk <wd@denx.de> Subject slightly changed. Signed-off-by: Wolfgang Denk <wd@denx.de> Tested on TQM855MDCBAB7-T66.102 (MPC855T at 66 MHz) and TQM860LDB0A3-T50.202 (MPC860T at 50MHz). Tested-by: Wolfgang Denk <wd@denx.de> Acked-by: Wolfgang Denk <wd@denx.de>
2011-11-07mpc8xx/cpu.c: Fix GCC 4.6 build warningsWolfgang Denk
Fix: cpu.c: In function 'check_CPU': cpu.c:188:8: warning: variable 'mid' set but not used [-Wunused-but-set-variable] Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-07-04Make sure that argv[] argument pointers are not modified.Wolfgang Denk
The hush shell dynamically allocates (and re-allocates) memory for the argument strings in the "char *argv[]" argument vector passed to commands. Any code that modifies these pointers will cause serious corruption of the malloc data structures and crash U-Boot, so make sure the compiler can check that no such modifications are being done by changing the code into "char * const argv[]". This modification is the result of debugging a strange crash caused after adding a new command, which used the following argument processing code which has been working perfectly fine in all Unix systems since version 6 - but not so in U-Boot: int main (int argc, char **argv) { while (--argc > 0 && **++argv == '-') { /* ====> */ while (*++*argv) { switch (**argv) { case 'd': debug++; break; ... default: usage (); } } } ... } The line marked "====>" will corrupt the malloc data structures and usually cause U-Boot to crash when the next command gets executed by the shell. With the modification, the compiler will prevent this with an error: increment of read-only location '*argv' N.B.: The code above can be trivially rewritten like this: while (--argc > 0 && **++argv == '-') { char *arg = *argv; while (*++arg) { switch (*arg) { ... Signed-off-by: Wolfgang Denk <wd@denx.de> Acked-by: Mike Frysinger <vapier@gentoo.org>
2010-04-21Move arch/ppc to arch/powerpcStefan Roese
As discussed on the list, move "arch/ppc" to "arch/powerpc" to better match the Linux directory structure. Please note that this patch also changes the "ppc" target in MAKEALL to "powerpc" to match this new infrastructure. But "ppc" is kept as an alias for now, to not break compatibility with scripts using this name. Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Wolfgang Denk <wd@denx.de> Acked-by: Detlev Zundel <dzu@denx.de> Acked-by: Kim Phillips <kim.phillips@freescale.com> Cc: Peter Tyser <ptyser@xes-inc.com> Cc: Anatolij Gustschin <agust@denx.de>
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