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path: root/arch/x86/include/asm/u-boot-x86.h
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* x86: baytrail: Add option to disable the internal UART to setup_early_uart()Stefan Roese2016-01-28-1/+1
| | | | | | | | | | | This patch adds a parameter to the function setup_early_uart() to either enable or disable the internal BayTrail legacy UART. Since the name setup_early_uart() does not match its functionality any more, lets rename it to setup_internal_uart() as well in this patch. Signed-off-by: Stefan Roese <sr@denx.de> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* x86: Make x86_init_cpus() staticSimon Glass2016-01-24-2/+0
| | | | | | | | There are no other implementations of this function, and boards that need it can implement a CPU driver. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Rename pcat_ to i8254 and i8259 accordinglyBin Meng2015-11-13-1/+1
| | | | | | | | Rename pcat_timer.c to i8254.c and pcat_interrupts.c to i8259.c, to match their header file names (i8254.h and i8259.h). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Remove init_gd() functionSimon Glass2015-08-14-1/+0
| | | | | | | This is declared but no-longer exists. Drop it. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: fsp: Move FspInitEntry call to board_init_f()Bin Meng2015-07-14-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | The call to FspInitEntry is done in arch/x86/lib/fsp/fsp_car.S so far. It worked pretty well but looks not that good. Apart from doing too much work than just enabling CAR, it cannot read the configuration data from device tree at that time. Now we want to move it a little bit later as part of init_sequence_f[] being called by board_init_f(). This way it looks and works better in the U-Boot initialization path. Due to FSP's design, after calling FspInitEntry it will not return to its caller, instead it jumps to a continuation function which is given by bootloader with a new stack in system memory. The original stack in the CAR is gone, but its content is perserved by FSP and described by a bootloader temporary memory HOB. Technically we can recover anything we had before in the previous stack, but that is way too complicated. To make life much easier, in the FSP continuation routine we just simply call fsp_init_done() and jump back to car_init_ret() to redo the whole board_init_f() initialization, but this time with a non-zero HOB list pointer saved in U-Boot's global data so that we can bypass the FspInitEntry for the second time. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Andrew Bradford <andrew.bradford@kodakalaris.com> Tested-by: Simon Glass <sjg@chromium.org>
* x86: fsp: Load GDT before calling FspInitEntryBin Meng2015-07-14-0/+7
| | | | | | | | | | | | | | | | | | | | | Currently the FSP execution environment GDT is setup by U-Boot in arch/x86/cpu/start16.S, which works pretty well. But if we try to move the FspInitEntry call a little bit later to better fit into U-Boot's initialization sequence, FSP will fail to bring up the AP due to #GP fault as AP's GDT is duplicated from BSP whose GDT is now moved into CAR, and unfortunately FSP calls AP initialization after it disables the CAR. So basically the BSP's GDT still refers to the one in the CAR, whose content is no longer available, so when AP starts up and loads its segment register, it blows up. To resolve this, we load GDT before calling into FspInitEntry. The GDT is the same one used in arch/x86/cpu/start16.S, which is in the ROM and exists forever. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Andrew Bradford <andrew.bradford@kodakalaris.com> Tested-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
* x86: coreboot: Fix cosmetic issuesBin Meng2015-06-04-1/+0
| | | | | | | Clean up arch/x86/cpu/coreboot.c to fix several cosmetic issues. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Allow CPUs to be set up after relocationSimon Glass2015-04-30-0/+2
| | | | | | | | This permits init of additional CPU cores after relocation and when driver model is ready. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: queensbay: Implement PIRQ routingBin Meng2015-04-29-0/+2
| | | | | | | | Implement Intel Queensbay platform-specific PIRQ routing support. The chipset PIRQ routing setup is called in the arch_misc_init(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* Merge branch 'master' of git://git.denx.de/u-boot-x86Tom Rini2015-02-10-0/+3
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| * x86: Allow a UART to be set up before the FSP is readySimon Glass2015-02-06-0/+3
| | | | | | | | | | | | | | | | | | Since the FSP is a black box it helps to have some sort of debugging available to check its inputs. If the debug UART is in use, set it up after CAR is available. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* | common: Move dram_init() declaration to common locationMichal Simek2015-02-09-6/+0
|/ | | | | Signed-off-by: Michal Simek <michal.simek@xilinx.com> Reviewed-by: Simon Glass <sjg@chromium.org>
* x86: Support ROMs on other archsSimon Glass2015-01-23-0/+2
| | | | | | | | We shouldn't assume that the VGA ROM can always be loaded at c0000. This is only true on x86 machines. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Remove cpu_init_r() for x86Bin Meng2014-11-25-2/+0
| | | | | | | | | Since cpu_init_interrupts() was moved out of cpu_init_r(), it is useless to keep cpu_init_r() for x86, thus remove it. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* x86: ivybridge: Implement SDRAM initSimon Glass2014-11-21-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement SDRAM init using the Memory Reference Code (mrc.bin) provided in the board directory and the SDRAM SPD information in the device tree. This also needs the Intel Management Engine (me.bin) to work. Binary blobs everywhere: so far we have MRC, ME and microcode. SDRAM init works by setting up various parameters and calling the MRC. This in turn does some sort of magic to work out how much memory there is and the timing parameters to use. It also sets up the DRAM controllers. When the MRC returns, we use the information it provides to map out the available memory in U-Boot. U-Boot normally moves itself to the top of RAM. On x86 the RAM is not generally contiguous, and anyway some RAM may be above 4GB which doesn't work in 32-bit mode. So we relocate to the top of the largest block of RAM we can find below 4GB. Memory above 4GB is accessible with special functions (see physmem). It would be possible to build U-Boot in 64-bit mode but this wouldn't necessarily provide any more memory, since the largest block is often below 4GB. Anyway U-Boot doesn't need huge amounts of memory - even a very large ramdisk seldom exceeds 100-200MB. U-Boot has support for booting 64-bit kernels directly so this does not pose a limitation in that area. Also there are probably parts of U-Boot that will not work correctly in 64-bit mode. The MRC is one. There is some work remaining in this area. Since memory init is very slow (over 500ms) it is possible to save the parameters in SPI flash to speed it up next time. Suspend/resume support is not fully implemented, or at least it is not efficient. With this patch, link boots to a prompt. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Replace fill_processor_name() with cpu_get_name()Simon Glass2014-11-21-0/+1
| | | | | | | | This implementation has a 'cpu' prefix and returns a pointer to the string, avoiding the need for copying. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Fix up some missing prototypesSimon Glass2014-11-21-0/+9
| | | | | | | Some functions are missing prototypes. Fix those that are specific to x86. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Use the standard arch_cpu_init() functionSimon Glass2014-11-21-0/+1
| | | | | | | | Instead of an x86-specific cpu_init_f() function, use the normal U-Boot one for this purpose. Also remove a useless/misleading comment. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Use the standard dram_init() functionSimon Glass2014-11-21-2/+2
| | | | | | | | Instead of having an x86-specific DRAM init function, adjust things so we can use the normal one. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-17/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* x86: Support tracing functionSimon Glass2013-06-26-1/+1
| | | | | | | Some changes are needed to x86 timer functions to support tracing. Add these so that the feature works correctly. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Re-enable PCAT timer 2 for beepingSimon Glass2013-05-13-0/+1
| | | | | | | | While we don't want PCAT timers for timing, we want timer 2 so that we can still make a beep. Re-purpose the PCAT driver for this, and enable it in coreboot. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Add TSC timerSimon Glass2013-05-13-0/+2
| | | | | | | | | | | | | | This timer runs at a rate that can be calculated, well over 100MHz. It is ideal for accurate timing and does not need interrupt servicing. Tidy up some old broken and unneeded implementations at the same time. To provide a consistent view of boot time, we use the same time base as coreboot. Use the base timestamp supplied by coreboot as U-Boot's base time. Signed-off-by: Simon Glass <sjg@chromium.org>base Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Implement panic output for corebootSimon Glass2013-05-13-0/+1
| | | | | | | | panic_puts() can be called in early boot to display a message. It might help with early debugging. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Tom Wai-Hong Tam <waihong@chromium.org>
* x86: Use sections header to obtain link symbolsSimon Glass2013-03-15-9/+0
| | | | | | | These are defined in asm-generic/sections.h, so remove them from architecture-specific files. Signed-off-by: Simon Glass <sjg@chromium.org>
* Change stub example to use asm-generic/sections.hSimon Glass2013-03-15-3/+3
| | | | | | | 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>
* x86: Add an __end symbol to signal the end of the U-Boot binarySimon Glass2013-03-04-0/+1
| | | | | | | 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>
* x86: Remove video_init() prototype from u-boot-x86.hSimon Glass2012-12-06-1/+0
| | | | | | | | | 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>
* x86: Add function to read time stamp counterVadim Bendebury2012-12-06-0/+12
| | | | | | | | | | | 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>
* x86: Add a default implementation for cleanup_before_linux()Gabe Black2012-11-30-0/+1
| | | | | | | | | | | 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>
* x86: Create weak init_cache() and default enable_caches() functionsGraeme Russ2012-01-04-0/+1
| | | | | | -- Changes for v2: - Tweaked commit title
* x86: Use fs for global dataGraeme Russ2012-01-04-0/+2
| | | | | | | | | | | | | | | | | | | | | | 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
* x86: Simplify Flash-to-RAM code execution transitionGraeme Russ2012-01-04-0/+2
| | | | | | | | | | | 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
* cosmetic: checkpatch cleanup of arch/x86/lib/*.cGraeme Russ2011-11-29-0/+8
| | | | Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
* x86: Remove the prototype for the unused function board_initGabe Black2011-11-02-1/+0
| | | | Signed-off-by: Gabe Black <gabeblack@chromium.org>
* Convert ISO-8859 files to UTF-8Albert ARIBAUD2011-08-04-1/+1
| | | | | | | | There was a mix of UTF-8 and ISO-8859 files in the U-Boot source tree, which could cause issues with the patchwork review system. This commit converts all ISO-8859 files to UTF-8. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
* Unify timer_init() and cpu_init() prototypesWolfgang Denk2011-08-01-1/+0
| | | | | | | | | | Clean up some duplicated prototype declarations. Get rid of now useless AVR32 initcalls.h file. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Albert Aribaud <albert.aribaud@free.fr> Cc: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: Graeme Russ <graeme.russ@gmail.com>
* x86: Rename i386 to x86Graeme Russ2011-04-13-0/+59
Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
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