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2013-03-15x86: Use sections header to obtain link symbolsSimon Glass
These are defined in asm-generic/sections.h, so remove them from architecture-specific files. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-15Change stub example to use asm-generic/sections.hSimon Glass
We can use the declarations of __bss_start and _end from this header instead of declaring them locally. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-15Introduce generic link section.h symbol filesSimon Glass
We create a separate header file for link symbols defined by the link scripts. It is helpful to have these all in one place and try to make them common across architectures. Since Linux already has a similar file, we bring this in even though many of the symbols there are not relevant to us. Each architecture has its own asm/sections.h where symbols specifc to that architecture can be added. For now everything except AVR32 just includes the generic header. One change is needed in arch/avr32/lib/board.c to make this conversion work. Reviewed-by: Tom Rini <trini@ti.com> (version 5) Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-04x86: Support relocation of FDT on start-upSimon Glass
With CONFIG_OF_CONTROL we may have an FDT in the BSS region. Relocate it up with the rest of U-Boot to keep the rest of memory free. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-04x86: Add an __end symbol to signal the end of the U-Boot binarySimon Glass
With this symbol we can easy append something (e.g. an FDT) to the U-Boot binary and access it from within U-Boot. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-03-04x86: Permit bootstage and timer data to be used prior to relocationSimon Glass
It is useful to be able to access the timer before U-Boot has relocated so that we can fully support bootstage. Add new global_data members to support this. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-14x86: Remove unused real mode codeSimon Glass
This code is pretty old and we want to support only 32-bit systems now. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Graeme Russ <graeme.russ@gmail.com>
2013-02-14x86: Remove sc520 cpuSimon Glass
This x86 CPU variant is no longer required as the boards that use it have been removed. Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Graeme Russ <graeme.russ@gmail.com>
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>
2013-02-07treewide: include libfdt_env.h before fdt.hKim Phillips
and, if including libfdt.h which includes libfdt_env.h in the correct order, don't include fdt.h before libfdt.h. this is needed to get the fdt type definitions set from the project environment before fdt.h uses them. Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Cc: Jerry Van Baren <gvb.uboot@gmail.com>
2013-02-04x86: Use generic global_dataSimon Glass
Move x86 over to use generic global_data. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-01x86: Remove reset_status, relocoff from global_dataSimon Glass
These fields are not used on x86, so punt them. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-01x86: Move gd_addr into arch_global_dataSimon Glass
Move this field into arch_global_data and tidy up. Signed-off-by: Simon Glass <sjg@chromium.org> [trini: Add arch/x86/cpu/cpu.c changes after Graeme's comments] Signed-off-by: Tom Rini <trini@ti.com>
2013-02-01x86: Remove gdt_addr from arch_global_dataSimon Glass
Remove this unused field. Signed-off-by: Simon Glass <sjg@chromium.org>
2013-02-01Add architecture-specific global dataSimon Glass
We plan to move architecture-specific data into a separate structure so that we can make the rest of it common. As a first step, create struct arch_global_data to hold these fields. Initially it is empty. This patch applies to all archs at once. I can split it if this is really a pain. Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-06x86: Remove video_init() prototype from u-boot-x86.hSimon Glass
This function is not intended to be exported from the video drivers, so remove the prototype. This fixes an error: cfb_console.c:1793:12: error: static declaration of 'video_init' follows non-static declaration Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-06x86: Add back cold- and warm-boot flagsGabe Black
These were removed, but actually are useful. Cold means that we started from a reset/power on. Warm means that we started from another U-Boot. We determine whether u-boot on x86 was warm or cold booted (really if it started at the beginning of the text segment or at the ELF entry point). We plumb the result through to the global data structure. Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-06x86: Initialise SPI if enabledGabe Black
If we have SPI support, make sure that we init it. Signed-off-by: Gabe Black <gabeblack@google.com> Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Vic Yang <victoryang@chromium.org>
2012-12-06x86: Increase the size of the phys_size_t and phys_addr_t typesGabe Black
These types should be 64 bits long to reflect the fact that physical addresses and the size of physical areas of memory are more than 32 bits long. Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-06x86: Import MSR/MTRR code from LinuxGraeme Russ
Imported from Linux 3.1 with a few modifications to suit U-Boot Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-06x86: Add basic cache operationsStefan Reinauer
Add functions to enable/disable the data cache. Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-06x86: Add a CBMEM timestamp generated right before the kernel startup.Vadim Bendebury
To maintain the initialization state of the timestamp facility, thesq pointer to the CBMEM section containing the timestamp table should be kept in the .data section (so that it is maintained across u-boot relocation). Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-06x86: Enable coreboot timestamp facility support in u-boot.Vadim Bendebury
This change turns on the code which allows u-boot to add timestamps to the timestamp table created by coreboot. Since u-boot does not use the tsc_t like structure to represent HW counter readings, this structure is being replaced by 64 bit integer. The timestamp_init() function is now initializing the base timer value used by u-boot to calculate the HW counter increments. Timestamp facility is initialized as soon as the timestamp table pointer is found in the coreboot table. The u-boot generated timer events' ID will start at 1000 to clearly separate u-boot events from coreboot events in the timer trace. Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-06x86: Add function to read time stamp counterVadim Bendebury
Put this function in the u-boot-x86.h header file. We could instead create timer.h perhaps. We support setting a base time, and reading the time relative to this base. Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-12-06x86: gpio: Add GPIO driver for Intel ICH6 and later.Bill Richardson
Implement <asm-generic/gpio.h> functions for Intel ICH6 and later. Only GPIOs 0-31 are handled by this code. Signed-off-by: Bill Richardson <wfrichar@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-30x86: Don't spam POST80 codes with slow IO functionsStefan Reinauer
This patch prevents u-boot from "spamming" random progress codes on a port 80 "post card". The previous version of this patch just removed the delays in the "slow" IO functions, as they do not need to be slow, however, this patch is less intrusive. It uses another unused port that is often used by BIOSes (and the Linux Kernel) for small delay timing purposes. Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-30x86: Include types.h explicitly in the i386 version of io.hGabe Black
The i386 version of io.h depends on the phys_addr_t type which is defined in types.h. It wasn't including that explicitly, and was working presumably because the other files including it had already included types.h themselves directly or indirectly. This change fixes that. Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-30x86: Add a default implementation for cleanup_before_linux()Gabe Black
This function provides an opportunity for some last minute cleanup and reconfiguration before control is handed over to Linux. It's possible this may need to do something in the future, but for now it's left empty. It's set up as a weak symbol so it can be overridden if necessary on a case by case basis. Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-30x86: Add an fdt pointer to the global data structureGabe Black
This change adds a pointer to the global data structure in x86 to point to the device tree. This mirrors an identical pointer in ARM. Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-30x86: coreboot: Decode additional coreboot sysinfo tagsSimon Glass
Add support for decoding tags for GPIOs, compile/build info, cbmem and other features. Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-28x86: coreboot: Tell u-boot about PCI bus 0 when initializingGabe Black
U-boot needs a host controller or "hose" to interact with the PCI busses behind them. This change installs a host controller during initialization of the coreboot "board" which implements some of X86's basic PCI semantics. This relies on some existing generic code, but also duplicates a little bit of code from the sc520 implementation. Ideally we'd eliminate that duplication at some point. It looks like in order to scan buses beyond bus 0, we'll need to tell u-boot's generic PCI configuration code what to do if it encounters a bridge, specifically to scan the bus on the other side of it. Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Graeme Russ <graeme.russ@gmail.com>
2012-11-28x86: Add some missing includesGabe Black
I suspect these includes were usually available because something else included them earlier or because they were brought in transitively. Change-Id: I6aae2ac94dc792eac6febb4345e8125f69f70988 Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-28x86: Add initial memory barrier macrosSimon Glass
These are available on other architectures, so add them on x86. Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-28x86: Add ilog2 to bitopsGraeme Russ
ilog2 is required by AHCI driver Signed-off-by: Graeme Russ <graeme.russ@gmail.com> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-28x86: Put global data on the stackGraeme Russ
Putting global data on the stack simplifies the init process (and makes it slightly quicker). During the 'flash' stage of the init sequence, global data is in the CAR stack. After SDRAM is initialised, global data is copied from CAR to the SDRAM stack Signed-off-by: Graeme Russ <graeme.russ@gmail.com> Signed-off-by: Simon Glass <sjg@chromium.org>
2012-11-28x86: Forward declare gd_tGraeme Russ
So it can be used as a type in struct global_data and remove an ugly typecast Signed-off-by: Graeme Russ <graeme.russ@gmail.com> Signed-off-by: Simon Glass <sjg@chromium.org> Acked-by: Marek Vasut <marex@denx.de>
2012-10-19x86: Change global data baudrate to intSimon Glass
This doesn't need to be a long, so change it. Signed-off-by: Simon Glass <sjg@chromium.org> Signed-off-by: Tom Rini <trini@ti.com>
2012-08-09global_data: unify global flag definesMike Frysinger
All the global flag defines are the same across all arches. So unify them in one place, and add a simple way for arches to extend for their needs. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-05-15net: move bootfile init into eth_initializeMike Frysinger
All arches init this the same way, so move the logic into the core net code to avoid duplicating it everywhere else. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2012-05-15net: punt bd->bi_ip_addrMike Frysinger
This field gets read in one place (by "bdinfo"), and we can replace that with getenv("ipaddr"). After all, the bi_ip_addr field is kept up-to-date implicitly with the value of the ipaddr env var. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
2012-01-04x86: Convert board_init_f_r to a processing loopGraeme Russ
Create an init function array for board_init_f_r - This finalises the migration to a purely array based initialisation mechanism Also tweak a few comments while we are at it so everything is 'correct' -- Changes for v2: - Renamed to a more apt name - Fix bug in set_reloc_flag_r - Re-instate gd->flags = boot_flags; in board_init_f - Added commit message
2012-01-04x86: Split init functions out of board.cGraeme Russ
This patch moves towards reducing board.c to simply a set of init cores for the three initialisation phases (Flash, Flash/RAM, and RAM), a set of three init function arrays and a init function array processing function
2012-01-04x86: Create weak init_cache() and default enable_caches() functionsGraeme Russ
-- Changes for v2: - Tweaked commit title
2012-01-04x86: Use fs for global dataGraeme Russ
Use the base address of the 'F' segment as a pointer to the global data structure. By adding the linear address (i.e. the 'D' segment address) as the first word of the global data structure, the address of the global data relative to the 'D' segment can be found simply, for example, by: fs movl 0, %eax This makes the gd 'pointer' writable prior to relocation (by reloading the Global Desctriptor Table) which brings x86 into line with all other arches NOTE: Writing to the gd 'pointer' is expensive (but we only do it twice) but using it to access global data members (read and write) is still fairly cheap -- Changes for v2: - Rebased against changes made to patch #3 - Removed extra indent - Tweaked commit message
2012-01-04x86: Simplify Flash-to-RAM code execution transitionGraeme Russ
Move the relocation offset calculation out of assembler and into C. This also paves the way for the upcoming init sequence simplification by adding the board_init_f_r flash to RAM transitional function -- Changes for v2: - Added commit message - Minor adjustment to new stack address comment
2012-01-04x86: Remove GDR related magic numbersGraeme Russ
-- Changes for v2: - Use an enum - Add defined for GDT size (previously added in patch 7) - Use X86_ namespace (as per Linux headers)
2012-01-02x86: Import glibc memcpy implementationGraeme Russ
Taken from glibc version 2.14.90 -- Changes for v2: - None
2011-12-19x86: Refactor the zboot innards so they can be reused with a vboot imageGabe Black
If vboot successfully verifies a kernel, it will leave it in place and basically ready to boot. The zeropage table which is part of the x86 boot protocol is at the end of the kernel, though, instead of the beginning, and because the image is already in place there's no need to copy it around. This change refactors the code which implements the zboot command so that the configuration of the zeropage table and loading the pieces of the kernel into memory are done separately. Also, because the command line goes before the zeropage table in vboot which is somewhat incompatible with the normal protocol, where to put the command line is a now a parameter instead of being hard coded. Signed-off-by: Gabe Black <gabeblack@chromium.org>
2011-12-19x86: Add support for booting Linux using the 32 bit boot protocolGabe Black
This change conditionally modifies the zboot command so that it can use the 32 bit boot protocol. This is necessary because the 16 bit realmode entry point assumes that it can call BIOS services which neither coreboot nor u-boot provide. Signed-off-by: Gabe Black <gabeblack@chromium.org>
2011-12-19x86: Clean up the x86 zimage code in preparation to extend itGabe Black
This change cleans up some formatting issues in the zimage handling code, and converts it from using offsets added to a base pointer to using the available structure definitions which were already being included. Signed-off-by: Gabe Black <gabeblack@chromium.org>
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