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* x86: Install a default e820 table in the __weak install_e820_map()Bin Meng2015-04-29-7/+22
| | | | | | | | Create a default e820 table with 3 entries which is enough to boot a Linux kernel. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Remove the old VGA driverBin Meng2015-04-29-206/+0
| | | | | | | CONFIG_VIDEO_VGA is no longer needed thus remove it. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* dm: x86: Add a uclass for an Low Pin Count (LPC) deviceSimon Glass2015-04-18-0/+29
| | | | | | | | | On x86 systems this device is commonly used to provide legacy port access. It is sort-of a replacement for the old ISA bus. Add a uclass for this, and allow it to have child devices. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: x86: Add a uclass for a Platform Controller HubSimon Glass2015-04-18-0/+29
| | | | | | | | | Add a simple uclass for this chip which is often found in x86 systems where the CPU is a separate device. The device can have children, so make it scan the device tree for these. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: x86: spi: Convert ICH SPI driver to driver modelSimon Glass2015-04-18-8/+0
| | | | | | | | | | | | Convert this driver over to use driver model. Since all x86 platforms use it, move x86 to use driver model for SPI and SPI flash. Adjust all dependent code and remove the old x86 spi_init() function. Note that this does not make full use of the new PCI uclass as yet. We still scan the bus looking for the device. It should move to finding its details in the device tree. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: x86: pci: Add a PCI driver for driver modelSimon Glass2015-04-18-0/+2
| | | | | | | Add a simple x86 PCI driver which uses standard functions provided by the architecture. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Add a x86_ prefix to the x86-specific PCI functionsSimon Glass2015-04-16-6/+6
| | | | | | | | | | | | These functions currently use a generic name, but they are for x86 only. This may introduce confusion and prevents U-Boot from using these names more widely. In fact it should be possible to remove these at some point and use generic functions, but for now, rename them. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Define macros for pci configuration space accessBin Meng2015-02-06-5/+2
| | | | | | | | | Move PCI_REG_ADDR and PCI_REG_DATA from arch/x86/lib/pci_type1.c to arch/x86/include/asm/pci.h, also define PCI_CFG_EN so that these macros can be used for pci configuration space access. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Allow a UART to be set up before the FSP is readySimon Glass2015-02-06-0/+4
| | | | | | | | | 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>
* x86: Remove unnecessary casts and fix comment typosSimon Glass2015-02-06-5/+5
| | | | | | | Tidy up the FSP support code a little. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: mmc: Move common FSP functions into a common fileSimon Glass2015-02-06-0/+56
| | | | | | | | | | | | Since these board functions seem to be the same for all boards which use FSP, move them into a common file. We can adjust this later if future FSPs need more flexibility. This creates a generic PCI MMC device. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Make CAR and DRAM FSP code commonSimon Glass2015-02-05-0/+207
| | | | | | | | | For now this code seems to be the same for all FSP platforms. Make it common until we see what differences are required. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Adjust the FSP types slightlySimon Glass2015-02-05-2/+2
| | | | | | | | | | To avoid casts, find_fsp_header() should return a pointer. Add asmlinkage to two API functions which use that convention. UPD_TERMINATOR is common so move it into a common file. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Move common FSP code into a common locationSimon Glass2015-02-05-1/+417
| | | | | | Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Tested-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Test mtrr support flag before accessing mtrr msrBin Meng2015-01-23-1/+3
| | | | | | | | | | On some x86 processors (like Intel Quark) the MTRR registers are not supported. This is reflected by the CPUID (EAX 01H) result EDX[12]. Accessing the MTRR registers on such processors will cause #GP so we must test the support flag before accessing MTRR MSRs. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Fix out of bounds irq handlers accessSebastien Ronsse2015-01-23-1/+1
| | | | | | | | | | | | | | | | | | | | | Using coreboot-x86_defconfig, the following error occurred prior to this modification: CC arch/x86/lib/interrupts arch/x86/lib/interrupts.c: In function ‘do_irqinfo’: arch/x86/lib/interrupts.c:134:24: error: iteration 16u invokes undefined behavior [-Werror=aggressive-loop-optimizations] if (irq_handlers[irq].handler != NULL) { ^ arch/x86/lib/interrupts.c:133:2: note: containing loop for (irq = 0; irq <= CONFIG_SYS_NUM_IRQS; irq++) { ^ cc1: all warnings being treated as errors scripts/Makefile.build:275: recipe for target 'arch/x86/lib/interrupts.o' failed make[1]: *** [arch/x86/lib/interrupts.o] Error 1 Makefile:1093: recipe for target 'arch/x86/lib' failed make: *** [arch/x86/lib] Error 2 Change-Id: I3572a822081b72ab760f1eb99442e1161d3d167e Signed-off-by: Sebastien Ronsse <sronsse@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Allow a hardcoded TSC frequency provided by KconfigBin Meng2015-01-13-2/+6
| | | | | | | | | | | | | | By default U-Boot automatically calibrates TSC running frequency via MSR and PIT. The calibration may not work on every x86 processor, so a new Kconfig option CONFIG_TSC_CALIBRATION_BYPASS is introduced to allow bypassing the calibration and assign a hardcoded TSC frequency CONFIG_TSC_FREQ_IN_MHZ. Normally the bypass should be turned on in a simulation environment like qemu. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: fsp: Drop get_hob_type() and get_hob_length()Bin Meng2015-01-13-3/+3
| | | | | | | | | | | These two are not worth having separate inline functions as they are really simple, so drop them. Also changed 'type' parameter of fsp_get_next_hob() from u16 to uint. Suggested-by: Simon Glass <sjg@chromium.org> Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Add an 'mtrr' command to list and adjust MTRRsSimon Glass2015-01-13-0/+139
| | | | | | | | | | | | | It is useful to be able to see the MTRR setup in U-Boot. Add a command to list the state of the variable MTRR registers and allow them to be changed. Update the documentation to list some of the available commands. This does not support fixed MTRRs as yet. Signed-off-by: Simon Glass <sjg@chromium.org> Tested-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Commit the current MTRRs before relocationSimon Glass2015-01-13-0/+8
| | | | | | | | Once we stop running from ROM we should set up the MTTRs to speed up execution. This is only needed for platforms that don't have an FSP. Also in the Coreboot case, the MTRRs are set up for us. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Tidy up VESA mode numbersSimon Glass2015-01-13-4/+7
| | | | | | | There are some bits which should be ignored when displaying the mode number. Make sure that they are not included in the mode that is displayed. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Use cache, don't clear the display in video BIOSSimon Glass2015-01-13-3/+2
| | | | | | | There is no need to run with the cache disabled, and there is no point in clearing the display frame buffer since U-Boot does it later. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Simplify the fsp hob access functionsBin Meng2015-01-12-8/+8
| | | | | | | | | Remove the troublesome union hob_pointers so that some annoying casts are no longer needed in those hob access routines. This also improves the readability. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Clean up the FSP support codesBin Meng2014-12-18-12/+10
| | | | | | | | | | | | | | | | | | | | | | | | | This is the follow-on patch to clean up the FSP support codes: - Remove the _t suffix on the structures defines - Use __packed for structure defines - Use U-Boot's assert() - Use standard bool true/false - Remove read_unaligned64() - Use memcmp() in the compare_guid() - Remove the cast in the memset() call - Replace some magic numbers with macros - Use panic() when no valid FSP image header is found - Change some FSP utility routines to use an fsp_ prefix - Add comment blocks for asm_continuation and fsp_init_done - Remove some casts in find_fsp_header() - Change HOB access macros to static inline routines - Add comments to mention find_fsp_header() may be called in a stackless environment - Add comments to mention init(&params) in fsp_init() cannot be removed Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: move arch-specific asmlinkage to <asm/linkage.h>Masahiro Yamada2014-12-15-0/+3
| | | | | | | | | | | | | | | | | | Commit 65dd74a674d6 (x86: ivybridge: Implement SDRAM init) introduced x86-specific asmlinkage into arch/x86/include/asm/config.h. Commit ed0a2fbf14f7 (x86: Add a definition of asmlinkage) added the same macro define again, this time, into include/common.h. (Please do not add arch-specific stuff to include/common.h any more; it is already too cluttered.) The generic asmlinkage is defined in <linux/linkage.h>. If you want to override it with an arch-specific one, the best way is to add it to <asm/linkage.h> like Linux Kernel. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Cc: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* x86: Add a simple command to show FSP HOB informationBin Meng2014-12-13-0/+68
| | | | | | | | | | | | | | FSP builds a series of data structures called the Hand-Off-Blocks (HOBs) as it progresses through initializing the silicon. These data structures conform to the HOB format as described in the Platform Initialization (PI) specification Volume 3 Shared Architectual Elements specification, which is part of the UEFI specification. Create a simple command to parse the HOB list to display the HOB address, type and length in bytes. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Support Intel FSP initialization path in start.SBin Meng2014-12-13-0/+3
| | | | | | | | | | | | | | | | | Per Intel FSP architecture specification, FSP provides 3 routines for bootloader to call. The first one is the TempRamInit (aka Cache-As-Ram initialization) and the second one is the FspInit which does the memory bring up (like MRC for other x86 targets) and chipset initialization. Those two routines have to be called before U-Boot jumping to board_init_f in start.S. The FspInit() will return several memory blocks called Hand Off Blocks (HOBs) whose format is described in Platform Initialization (PI) specification (part of the UEFI specication) to the bootloader. Save this HOB address to the U-Boot global data for later use. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Clean up asm-offsetsBin Meng2014-12-13-1/+1
| | | | | | | | | Move GD_BIST from lib/asm-offsets.c to arch/x86/lib/asm-offsets.c as it is x86 arch specific stuff. Also remove GENERATED_GD_RELOC_OFF which is not referenced anymore. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* Replace <compiler.h> with <linux/compiler.h>Masahiro Yamada2014-12-08-2/+2
| | | | | | Including <linux/compiler.h> is enough for general use. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* x86: Add support for running option ROMs nativelySimon Glass2014-11-25-0/+946
| | | | | | | | On x86 machines we can use an emulator to run option ROMS as with other architectures. But with some additional effort (mostly due to the 16-bit nature of option ROMs) we can run them natively. Add support for this. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Refactor interrupt_init()Bin Meng2014-11-25-8/+1
| | | | | | | | | | | Rename interrupt_init() in arch/x86/lib/pcat_interrupts.c to i8259_init() and create a new interrupt_init() in arch/x86/cpu/interrupt.c to call i8259_init() followed by a call to cpu_init_interrupts(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* x86: Call cpu_init_interrupts() from interrupt_init()Bin Meng2014-11-25-0/+3
| | | | | | | | | | | | | Currently cpu_init_interrupts() is called from cpu_init_r() to setup the interrupt and exception of the cpu core, but at that time the i8259 has not been initialized to mask all the irqs and remap the master i8259 interrupt vector base, so the whole system is at risk of being interrupted, and if interrupted, wrong interrupt/exception message is shown. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* x86: Set up edge triggering on interrupt 9Simon Glass2014-11-25-0/+38
| | | | | | | Add this additional init in case it is needed by the OS. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Panic if there is no relocation dataSimon Glass2014-11-25-0/+3
| | | | | | | | | This normally indicates a problem which will prevent relocation from functioning, resulting in a hang. Panic in this case to make it easier to debug. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: ivybridge: Implement SDRAM initSimon Glass2014-11-21-0/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Allow timer calibration to work on ivybridgeSimon Glass2014-11-21-11/+21
| | | | | | | | | | Unfortunately MSR_FSB_FREQ is not available on this CPU, and the PIT method seems to take up to 50ms which is much too long. For this CPU we know the frequency, so add another special case for now. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Remove unnecessary find_fdt(), prepare_fdt() functionsSimon Glass2014-11-21-27/+0
| | | | | | | These are no-longer needed so drop them. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
* x86: Save TSC frequency in the global dataBin Meng2014-11-21-0/+4
| | | | | | | | Return the saved TSC frequency in get_tbclk_mhz(). Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* x86: Add quick TSC calibration via PITBin Meng2014-11-21-0/+156
| | | | | | | | Use the same way that Linux does for quick TSC calibration via PIT when calibration via MSR fails. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Do TSC MSR calibration only for known/supported CPUsBin Meng2014-11-21-7/+108
| | | | | | | | | | Using MSR_PLATFORM_INFO (0xCE) to calibrate TSR will cause #GP on processors which do not have this MSR. Instead only doing the MSR calibration for known/supported CPUs. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org> Tested-by: Simon Glass <sjg@chromium.org>
* x86: Correct a few progress message nitsSimon Glass2014-10-28-3/+3
| | | | | | | We should use puts() instead of printf() where possible. Also clarify the setup.bin message. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: bootm: Support booting a 64-bit raw kernelSimon Glass2014-10-28-2/+8
| | | | | | Detect an x86_64 kernel and boot it in 64-bit mode. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Move kernel boot function to arch/x86/lib/bootm.cSimon Glass2014-10-28-45/+46
| | | | | | | | The boot_zimage() function is badly named it can also boot a raw kernel. Rename it, and try to avoid pointers for memory addresses as it involves lots of casting. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Move paging functions into cpu.cSimon Glass2014-10-28-30/+3
| | | | | | | These functions really don't belong in physmem as they relate to the cpu. Move them. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Use correct printf() format string for uintptr_tSimon Glass2014-10-27-1/+2
| | | | | | Use the inttypes header file to provide this. Signed-off-by: Simon Glass <sjg@chromium.org>
* dm: x86: Remove ebp assembler warning in zimage.cSimon Glass2014-10-23-1/+0
| | | | | | | This code generates warnings with recent gcc versions. We really don't need the clobber specification, so just drop it. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: set CONFIG_USE_PRIVATE_LIBGCC to yMasahiro Yamada2014-10-23-3/+3
| | | | | | | | | | | | | | | | | | The motivation of this commit is to change CONFIG_USE_PRIVATE_LIBGCC to a boolean macro so we can move it to Kconfig. In the current implementation, there are two forms of syntax for this macro: - CONFIG_USE_PRIVATE_LIBGCC=y - CONFIG_USE_PRIVATE_LIBGCC=path/to/private/libgcc The latter is only used by x86 architecture. With a little bit refactoring, it can be converted to the former. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Simon Glass <sjg@chromium.org> Acked-by: Simon Glass <sjg@chromium.org>
* x86: Allow cmdline setup in setup_zimage() to be optionalSimon Glass2014-10-22-9/+12
| | | | | | | If we are passing this using the device tree then we may not want to set this up here. Signed-off-by: Simon Glass <sjg@chromium.org>
* x86: Rewrite bootm.c to make it similar to ARMSimon Glass2014-10-22-53/+118
| | | | | | | | | | | | | The x86 bootm code is quite special, and geared to zimage. Adjust it to support device tree and make it more like the ARM code, with separate bootm stages and functions for each stage. Create a function announce_and_cleanup() to handle printing the "Starting kernel ..." message and put it in bootm so it is in one place and can be used by any loading code. Also move the board_final_cleanup() function into bootm. Signed-off-by: Simon Glass <sjg@chromium.org>
* cosmetic: replace MIN, MAX with min, maxMasahiro Yamada2014-09-24-2/+2
| | | | | | | The macro MIN, MAX is defined as the aliase of min, max, respectively. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
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