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* MIPS: Add support for Microchip PIC32MZ[DA] SoC family.Purna Chandra Mandal2016-02-01-2/+379
| | | | | | | Add Microchip PIC32MZ[DA] SoC family support. Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* drivers: ddr: Add DDR2 SDRAM controller driver for Microchip PIC32.Purna Chandra Mandal2016-02-01-0/+32
| | | | | | | | | | | This driver initializes PIC32 DDR2 SDRAM controller and internal DDR2 Phy module. DDR2 controller operates in half-rate mode (upto 533MHZ frequency). Signed-off-by: Paul Thacker <paul.thacker@microchip.com> Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* MIPS: initial infrastructure for Microchip PIC32 architecturePurna Chandra Mandal2016-02-01-0/+110
| | | | | | | | | Create initial directory, Kconfigs needed for PIC32 architecture support. Also add PIC32 specific register definition required for drivers. Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>
* MIPS: Support dynamic I/O port base addressPaul Burton2016-02-01-34/+34
| | | | | | | | | | | | The existing mips_io_port_base variable isn't suitable for use early during boot since it will be stored in the .data section which may not be writable pre-relocation. Fix this by moving the I/O port base address into struct arch_global_data. In order to avoid adding this field for all targets, make this dependant upon a new Kconfig entry CONFIG_DYNAMIC_IO_PORT_BASE. Malta is the only board which sets a non-zero I/O port base, so select this option only for Malta. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
* MIPS: Remove SLOW_DOWN_IOPaul Burton2016-02-01-37/+3
| | | | | | | | | CONF_SLOWDOWN_IO is never set for any target, so remove the dead code in the SLOW_DOWN_IO macro. This is done in preparation for changes to mips_io_port_base which can be avoided in this path by removing it entirely. Signed-off-by: Paul Burton <paul.burton@imgtec.com>
* mips: cache: Bulletproof the code against cornercasesMarek Vasut2016-02-01-0/+8
| | | | | | | | | | | | | | | | | | | This patch makes sure that the flush/invalidate_dcache_range() functions can handle corner-case calls like this -- invalidate_dcache_range(0, 0, 0); This call is valid and is happily produced by USB EHCI code for example. The expected behavior of the cache function(s) in this case is that they will do no operation, since the size is zero. The current implementation though has a problem where such invocation will result in a hard CPU hang. This is because under such conditions, where the start_addr = 0 and stop = 0, the addr = 0 and aend = 0xffffffe0 . The loop will then try to iterate over the entire address space, which in itself is wrong. But iterating over the entire address space might also hit some odd address which will cause bus hang. The later happens on the Atheros MIPS. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Cc: Hans de Goede <hdegoede@redhat.com>
* MIPS: start.S: fix and optimize instructionsDaniel Schwierzeck2016-02-01-11/+11
| | | | | | | | Fix 32 vs 64 bit load/store instructions. Access CP0_WATCHHI as 32 Bit register. Use 64 Bit register access for clearing gd_data and copying U-Boot. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: initialize board_init_f() argument to zero.Purna Chandra Mandal2016-02-01-1/+1
| | | | | | | | | Argument boot_flags of board_init_f() should be set to 0 as $a0 may be utilized in lowlevel_init() or mips_cache_reset() or previous stage boot-loader. Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* mips: asm/io.h: Add in <linux/bug.h>Tom Rini2016-01-25-0/+1
| | | | | | As part of the bug.h / BUILD_BUG_* clean up, this file was missed. Signed-off-by: Tom Rini <trini@konsulko.com>
* MIPS: implement bit manipulating I/O accessorsDaniel Schwierzeck2016-01-16-0/+55
| | | | | | | Add support for functions clrbits_X(), setbits_X() and clrsetbits_X() on MIPS. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: fix SPDX license identifier in remaining arch header filesDaniel Schwierzeck2016-01-16-55/+32
| | | | | | | Add a SPDX license identifier to MIPS header files where it is still missing. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: sync processor and register definitions with linux-4.4Daniel Schwierzeck2016-01-16-553/+1211
| | | | | | | Update definitions for processor, registers as well as assemby macros. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: sync I/O related header files with linux-4.4Daniel Schwierzeck2016-01-16-364/+941
| | | | | | | | | | | | | Mainly sync asm/io.h to get a working ioremap() implementation as well as the full set of I/O accessors. Pull in additional header files to make this work. Furthermore port over the directory 'arch/mips/include/asm/mach-generic/' with contains default definitions for I/O and memory spaces and default implementations for mapping those spaces. All files in that directory can be overwritten by a SoC/machine. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: kconfig: add option for MIPS_L1_CACHE_SHIFTDaniel Schwierzeck2016-01-16-10/+25
| | | | | | | | | | | | | | | | Add Kconfig symbol for L1 cache shift like the kernel does. The value of CONFIG_SYS_CACHELINE_SIZE is not a reliable source for ARCH_DMA_MINALIGN anymore, because it is optional on MIPS. If CONFIG_SYS_CACHELINE_SIZE is not defined by a board, the cache sizes are automatically detected and ARCH_DMA_MINALIGN would be set to 128 Bytes. The default value for CONFIG_MIPS_L1_CACHE_SHIFT is 5 which corresponds to 32 Bytes. All current MIPS boards already used that value. While on it, fix the Malta board to use a value of 6 like the kernel port does. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: Kconfig: optimize gcc -march and -mtune setupDaniel Schwierzeck2016-01-16-15/+24
| | | | | | | | Move setup of -march to arch/mips/Makefile and follow the design on ARM. Also add a possibility to chose specific CPU tune options. Signed-off-by: Wills Wang <wills.wang@live.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: au1x00: move SoC header files to arch/mips/mach-au1x00/include/mach/Daniel Schwierzeck2016-01-16-3/+3
| | | | Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: Kconfig: refactor machine setupDaniel Schwierzeck2016-01-16-1/+6
| | | | | | | | Refactor machine setup like it is done on ARM. While on it, also support "include <mach/file.h" for machine specific header files. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: add initial infrastructure for device-tree filesDaniel Schwierzeck2016-01-16-0/+42
| | | | | | | | Prepare sub-folder for device-tree files. Make support for device-tree on MIPS available in Kbuild/Kconfig. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com>
* MIPS: do not build position-independent executables for SPLDaniel Schwierzeck2016-01-16-4/+14
| | | | | | | | | SPL binaries are usually linked to a fixed address in SRAM. Furthermore SPL binaries do not need to relocate itself. Thus do not build them as position-independent binaries which helps to largely reduce the size of SPL binaries. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: create .text sub-sections for assembler functionsDaniel Schwierzeck2016-01-16-1/+3
| | | | | | | | Put all functions coded in assembly in sub-sections of section .text. This allows the linker to garbage collect unused assembly functions too. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: fix annotation of _start and relocate_codeDaniel Schwierzeck2016-01-16-7/+11
| | | | | | | Correctly annotate _start and relocate_code as functions to produce more readable disassembly code generated by objdump. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: add asm/gpio.h to fix compilation error with CONFIG_CMD_GPIO.Purna Chandra Mandal2016-01-16-0/+1
| | | | | | | | | | With CONFIG_CMD_GPIO compilation reports error. common/cmd_gpio.c:13:22: fatal error: asm/gpio.h: No such file or directory #include <asm/gpio.h> ^ Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Reviewed-by: Chin Liang See <clsee@altera.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* Fix GCC format-security errors and convert sprintfs.Ben Whitten2016-01-14-1/+1
| | | | | | | | | | | With format-security errors turned on, GCC picks up the use of sprintf with a format parameter not being a string literal. Simple uses of sprintf are also converted to use strcpy. Signed-off-by: Ben Whitten <ben.whitten@gmail.com> Acked-by: Wolfgang Denk <wd@denx.de> Reviewed-by: Tom Rini <trini@konsulko.com>
* Merge branch 'master' of git://git.denx.de/u-boot-mipsTom Rini2015-11-06-104/+92
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| * MIPS: bootm: use CONFIG_IS_ENABLED() everywhereDaniel Schwierzeck2015-11-06-19/+14
| | | | | | | | | | Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com>
| * MIPS: bootm: rework and fix broken bootm codeDaniel Schwierzeck2015-11-06-85/+78
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The move to 'generic board' as well as changes in the generic bootm code broke the boot of FIT uImage's. Especially uImage's with additional initramfs images or FDT's do not work anymore. Refactor the bootm code to work again with the generic bootm code. Always relocate ramdisk and FDT in step 'bootm prep' because the generic bootm code does this only for legacy uImage's. Move the step 'bootm cmdline' to 'bootm prep' because the Linux kernel parameters rd_start and rd_size have to be initialized after the relocation of the ramdisk. Furthermore support the step 'bootm fake'. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* | mips: Use the generic bitops headersFabio Estevam2015-11-05-0/+5
|/ | | | | | | | The generic bitops headers are required when calling logarithmic functions, such as ilog2(). Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: fix syntax for fdt_chosen/initrd.Govindraj Raja2015-08-21-2/+2
| | | | | | | | | | | The syntax for the fdt_chosen/initrd functions seem to deprecated in usage from MIPS bootm implementation. Third parameter is no more used in these api's Refer to : include/fdt_support.h Signed-off-by: Govindraj Raja <govindraj.raja@imgtec.com>
* mips: Use unsigned int when reading c0 registersChris Packham2015-08-21-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit a18a477 (MIPS: use common code from lib/time.c) MIPS platforms started using common the common timer functions which are based around the fact that many platforms have a 32-bit free running counter register that can be used see commit 8dfafdd (Introduce common timer functions). Even MIPS64 has such a 32-bit register (some have an additional 64-bit free running counter, but that's something for another time). The problem is that in __read_32bit_c0_register() we read the value from this register into an _signed_ int and as it's returned up the call chain to timer_read_counter() it gets assigned to an unsigned long. On a 32-bit system there is no problem. On a 64-bit system odd things happen, sign extension seems to kick in and all of a sudden if the counter register happens to have the MSb (i.e. the sign bit) set the negative int gets sign extended into a very large unsigned long value. This in turn throws out things from get_ticks() up. Update __read_32bit_c0_register() and __read_32bit_c0_ctrl_register() to use "unsigned int res;" instead of "int res;". There seems to be little reason to treat these register values as signed. They are either counters (which by definition are unsigned) or are made up of various bit fields to be interpreted as per the CPU datasheet. Reported-by: Sachin Surendran <sachin.surendran@alliedtelesis.co.nz> Signed-off-by: Chris Packham <judge.packham@gmail.com>
* MIPS: change 'extern inline' to 'static inline'Daniel Schwierzeck2015-07-02-9/+9
| | | | | | | | The kernel changed it a long time ago. Also this is now broken on gcc-5.x. Reported-by: Andy Kennedy <andy.kennedy@adtran.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: fix missing semicolon in cacheops.hTony Wu2015-07-02-1/+1
| | | | | | | | Fix missing semicolon in cacheops.h introduced in commit 2b8bcc5a2 (MIPS: avoid .set ISA for cache operations) Signed-off-by: Tony Wu <tung7970@gmail.com> Cc: Paul Burton <paul.burton@imgtec.com>
* Move default y configs out of arch/board KconfigJoe Hershberger2015-06-25-3/+0
| | | | | | | | | | | | | | | | | | | Some archs/boards specify their own default by pre-defining the config which causes the Kconfig system to mix up the order of the configs in the defconfigs... This will cause merge pain if allowed to proliferate. Remove the configs that behave this way from the archs. A few configs still remain, but that is because they only exist as defaults and do not have a proper Kconfig entry. Those appear to be: SPIFLASH DISPLAY_BOARDINFO Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> [trini: rastaban, am43xx_evm_usbhost_boot, am43xx_evm_ethboot updates, drop DM_USB from MSI_Primo81 as USB_MUSB_SUNXI isn't converted yet to DM] Signed-off-by: Tom Rini <trini@konsulko.com>
* arch: Make board selection choices optionalJoe Hershberger2015-05-12-0/+1
| | | | | | | | | | | | By making the board selections optional, every defconfig will include the board selection when running savedefconfig so if a new board is added to the top of the list of choices the former top's defconfig will still be correct. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Cc: Masahiro Yamada <yamada.masahiro@socionext.com> Acked-by: Stephen Warren <swarren@wwwdotorg.org> Cc: Tom Rini <trini@konsulko.com>
* MIPS: implement device-tree handover to Linux kernelDaniel Schwierzeck2015-04-24-7/+8
| | | | | | | | | | | Add device-tree handover to Linux kernel conforming with MIPS UHI [1]. Register $a0 will be set to the reserved value -2. The address of the device-tree blob will be stored as KSEG0 address in $a1. $a2 and $a3 are set to zero. [1] http://prplfoundation.org/wiki/MIPS_documentation Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* net: cosmetic: Fix var naming net <-> eth driversJoe Hershberger2015-04-18-5/+7
| | | | | | | | | | | | | | | Update the naming convention used in the network stack functions and variables that Ethernet drivers use to interact with it. This cleans up the temporary hacks that were added to this interface along with the DM support. This patch has a few remaining checkpatch.pl failures that would be out of the scope of this patch to fix (drivers that are in gross violation of checkpatch.pl). Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Acked-by: Simon Glass <sjg@chromium.org>
* net: Provide a function to get the current MAC addressJoe Hershberger2015-04-18-1/+1
| | | | | | | | | The current implementation exposes the eth_device struct to code that needs to access the MAC address. Add a wrapper function for this to abstract away the pointer for this operation. Signed-off-by: Joe Hershberger <joe.hershberger@ni.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* generic-board: move __HAVE_ARCH_GENERIC_BOARD to KconfigMasahiro Yamada2015-03-28-2/+0
| | | | | | | | Move the option to Kconfig renaming it to CONFIG_HAVE_GENERIC_BOARD. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Alexey Brodkin <abrodkin@synopsys.com>
* MIPS: unify CPU code in arch/mips/cpu/Daniel Schwierzeck2015-01-30-389/+13
| | | | | | | | | Unify and move code in arch/mips/cpu/mips[32|64]/ to arch/mips/cpu/. The CPU specific config.mk files need to remain until CONFIG_STANDALONE_LOAD_ADDR is converted to a global Kconfig symbol. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: move au1x00 SoC code to arch/mips/mach-au1x00Daniel Schwierzeck2015-01-30-10/+8
| | | | | | | | | | Move all au1x00 code out of arch/mips/cpu/mips32 to allow unification of CPU code in a later patch. The reorganization of the SoC specific header files will be done in a later patch series. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Cc: Paul Burton <paul.burton@imgtec.com>
* MIPS: handle mips64 ST0_KX bit in mips32 start.SPaul Burton2015-01-30-1/+3
| | | | | | | | | In preparation for sharing a single copy of start.S between mips32 & mips64, handle setting the KX bit of the cop0 Status register when the mips32 start.S is built for mips64. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: handle mips64 relocs in mips32 start.SPaul Burton2015-01-30-2/+17
| | | | | | | | | In preparation for sharing a single copy of start.S between mips32 & mips64, handle mips64 relocations in the mips32 start.S when built for mips64. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: use asm.h macros in mips32 start.SPaul Burton2015-01-30-55/+61
| | | | | | | | | | | | | | Where the mips32 & mips64 implementations of start.S differ in terms of access sizes & offsets, use the appropriate macros from asm.h to abstract those differences away. This is in preparation for sharing a single copy of start.S between mips32 & mips64. The exception to this is loads of immediates to be written to the cop0 Config register, which is a 32bit register on mips64 and therefore constants written to it can be loaded as such. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* malta: IDE supportPaul Burton2015-01-29-0/+5
| | | | | | | | | This patch adds IDE support to the MIPS Malta board. The IDE controller is enabled after probing the PCI bus and otherwise just makes use of U-boot generic IDE support. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: clear TagLo select 2 during cache initPaul Burton2015-01-29-2/+8
| | | | | | | | | | Current MIPS cores from Imagination Technologies use TagLo select 2 for the data cache. The architecture requires that it is safe for software to write to this register even if it isn't present, so take the trivial option of clearing both selects 0 & 2. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: allow systems to skip loads during cache initPaul Burton2015-01-29-6/+19
| | | | | | | | | | | | | Current MIPS systems do not require that loads be performed to force the parity of cache lines, a simple invalidate by clearing the tag for each line will suffice. Thus this patch makes the loads & subsequent second invalidation conditional upon the CONFIG_SYS_MIPS_CACHE_INIT_RAM_LOAD option, and defines that for existing mips32 targets. Exceptions are malta where this is known to be unnecessary, and qemu-mips where caches are not implemented. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: inline mips_init_[id]cache functionsPaul Burton2015-01-29-58/+28
| | | | | | | | | | | The mips_init_[id]cache functions are small & only called once from a single callsite. Inlining them allows mips_cache_reset to avoid having to bother moving arguments around & leaves it a leaf function which is thus able to simply keep the return address live in the ra register throughout, simplifying the code. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: refactor cache loops to a macroPaul Burton2015-01-29-17/+13
| | | | | | | | Reduce duplication by performing loops through cache tags using an assembler macro. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: refactor L1 cache config reads to a macroPaul Burton2015-01-29-56/+41
| | | | | | | | | Reduce duplication between reading the configuration of the L1 dcache & icache by performing both using a macro which calculates the appropriate line & cache sizes from the coprocessor 0 Config1 register. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: unify cache initialization codePaul Burton2015-01-29-224/+15
| | | | | | | | | | | | | | The mips32 & mips64 cache initialization code differs only in that the mips32 code supports reading the cache size from coprocessor 0 registers at runtime. Move the more developed mips32 version to a common arch/mips/lib/cache_init.S & remove the now-redundant mips64 version in order to reduce duplication. The temporary registers used are shuffled slightly in order to work for both mips32 & mips64 builds. The RA register is defined differently to suit mips32 & mips64, but will be removed by a later commit in the series after further cleanup. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
* MIPS: unify cache maintenance functionsPaul Burton2015-01-29-167/+119
| | | | | | | | | Move the more developed mips32 version of the cache maintenance functions to a common arch/mips/lib/cache.c, in order to reduce duplication between mips32 & mips64. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
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