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* malloc: remove extern declarations of malloc_bin_reloc() in board.c filesDaniel Schwierzeck2012-09-26-6/+1
| | | | | | | | | | | | | Declare malloc_bin_reloc() in malloc.h and remove all extern declarations in various board.c files to get rid of one checkpatch.pl warning. Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> Cc: Wolfgang Denk <wd@denx.de> Cc: Andreas Bießmann <andreas.devel@gmail.com> Cc: Jason Jin <Jason.jin@freescale.com> Cc: Macpaul Lin <macpaul@andestech.com> Cc: Daniel Hellstrom <daniel@gaisler.com> Acked-by: Andreas Bießmann <andreas.devel@gmail.com>
* Merge branch 'master' of git://git.denx.de/u-boot-videoTom Rini2012-09-25-89/+105
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| * common/lcd: fix build breakage for at91sam9x5ek and trats boardsAnatolij Gustschin2012-09-24-4/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit 203c37b8c5556aad1901ce4954792afd718c7d42 (common lcd: simplify core functions) and commit bfdcc65e1163b4891643c2a670570c478b9af2a4 (common lcd: simplify lcd_display_bitmap) caused build breakage for at91sam9x5ek board configurations and for trats board. Fix these build errors. Signed-off-by: Anatolij Gustschin <agust@denx.de> Acked-by: Nikita Kiryanov <nikita@compulab.co.il>
| * video/powerpc: don't touch DIU registers that we don't needTimur Tabi2012-09-21-19/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several DIU registers were being initialized either unnecessarily or to wrong values. 1) All interrupts were enabled even though there's no interrupt handler. Interrupts were left enabled when booting Linux. 2) Don't configure a dummy area descriptor, since we don't support ADs in U-Boot. 3) Don't configure any write-back buffer registers, since we don't use that mode. 4) The default values for the THRESHOLDS, SYN_POL, and PLUT registers should be used, so don't touch those registers either. Signed-off-by: Timur Tabi <timur@freescale.com>
| * common/lcd: add protection from null bmp pointerNikita Kiryanov2012-09-21-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | If the bmp pointer is null then U-Boot will get stuck when trying to load the image. What's worse, it will get stuck before the U-Boot shell becomes available to the user, thus making it difficult to correct the situation. To protect from the above scenario, check if the pointer is valid. Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
| * common lcd: simplify lcd_display_bitmapNikita Kiryanov2012-09-05-17/+47
| | | | | | | | | | | | | | | | | | | | | | Move highly platform dependant code into its own functions to reduce the number of #ifdefs in lcd_display_bitmap To avoid breaking the mcc200 board which does not #define CONFIG_CMD_BMP, this patch also implements bmp_display() for mcc200. Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
| * common lcd: simplify core functionsNikita Kiryanov2012-09-05-32/+30
| | | | | | | | | | | | | | | | Move highly platform dependant code into its own function to reduce the number of #ifdefs in the bigger functions Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
| * common lcd: simplify lcd_displayNikita Kiryanov2012-09-05-9/+18
| | | | | | | | | | | | | | Simplify lcd_display by centralizing code into a funciton Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
| * common lcd: simplify lcd_logoNikita Kiryanov2012-09-05-11/+1
| | | | | | | | | | | | | | Simplify lcd_logo by extracting bmp unzip into its own function. Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il> Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
* | cmd_part: add partition-related commandStephen Warren2012-09-25-0/+106
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This implements the following: part uuid mmc 0:1 -> print partition UUID part uuid mmc 0:1 uuid -> set environment variable to partition UUID part list mmc 0 -> list the partitions on the specified device "part uuid" can be useful when writing a bootcmd which searches all known devices for something bootable, and then wants the kernel to use the same partition as the root device, e.g.: part uuid ${devtype} ${devnum}:${rootpart} uuid setenv bootargs root=PARTUUID=${uuid} ... Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | disk: part_msdos: parse and store partition UUIDStephen Warren2012-09-25-4/+13
| | | | | | | | | | | | | | | | | | | | | | | | The MSDOS/MBR partition table includes a 32-bit unique ID, often referred to as the NT disk signature. When combined with a partition number within the table, this can form a unique ID similar in concept to EFI/GPT's partition UUID. This patch generates UUIDs in the format 0002dd75-01, which matches the format expected by the Linux kernel. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | disk: part_efi: parse and store partition UUIDStephen Warren2012-09-25-0/+33
| | | | | | | | | | | | | | | | | | | | | | Each EFI partition table entry contains a UUID. Extend U-Boot's struct disk_partition to be able to store this information, and modify get_partition_info_efi() to fill it in. The implementation of uuid_string() was derived from the Linux kernel, tag v3.6-rc4 file lib/vsprintf.c function uuid_string(). Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | disk: part_efi: range-check partition numberStephen Warren2012-09-25-0/+7
| | | | | | | | | | | | | | | | Enhance get_partition_info_efi() to range-check the partition number. This prevents invalid partitions being accessed, and prevents access beyond the end of the gpt_pte[] array. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | disk: get_device_and_partition() "auto" partition and cleanupStephen Warren2012-09-25-59/+171
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Rework get_device_and_partition() to: a) Implement a new partition ID of "auto", which requests that U-Boot search for the first "bootable" partition, and fall back to the first valid partition if none is found. This way, users don't need to specify an explicit partition in their commands. b) Make use of get_device(). c) Add parameter to indicate whether returning a whole device is acceptable, or whether a partition is mandatory. d) Make error-checking of the user's device-/partition-specification more complete. In particular, if strtoul() doesn't convert all characters, it's an error rather than just ignored. The resultant device/partition returned by the function will be as follows, based on whether the disk has a partition table (ptable) or not, and whether the calling command allows the whole device to be returned or not. (D and P are integers, P >= 1) D D: No ptable: !allow_whole_dev: error allow_whole_dev: device D ptable: device D partition 1 D:0 !allow_whole_dev: error allow_whole_dev: device D D:P No ptable: error ptable: device D partition P D:auto No ptable: !allow_whole_dev: error allow_whole_dev: device D ptable: first partition in device D with bootable flag set. If none, first valid paratition in device D. Note: In order to review this patch, it's probably easiest to simply look at the file contents post-application, rather than reading the patch itself. Signed-off-by: Rob Herring <rob.herring@calxeda.com> [swarren: Rob implemented scanning for bootable partitions. I fixed a couple of issues there, switched the syntax to ":auto", added the error-checking rework, and ":0" syntax for the whole device] Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | disk: introduce get_device()Stephen Warren2012-09-25-0/+27
| | | | | | | | | | | | | | | | | | This patch introduces function get_device(). This looks up a block_dev_desc_t from an interface name (e.g. mmc) and device number (e.g. 0). This function is essentially the non-partition-specific prefix of get_device_and_partition(). Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | cmd_reiser: use common get_device_and_partition functionRob Herring2012-09-25-84/+28
| | | | | | | | | | | | | | | | Convert reiserload and reiserls to use common device and partition parsing function. With the common function "dev:part" can come from the environment and a '-' can be used in that case. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* | cmd_zfs: use common get_device_and_partition functionRob Herring2012-09-25-97/+31
| | | | | | | | | | | | | | | | Convert zfsload and zfsls to use common device and partition parsing function. With the common function "dev:part" can come from the environment and a '-' can be used in that case. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* | cmd_disk: use common get_device_and_partition functionRob Herring2012-09-25-58/+19
| | | | | | | | Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* | cmd_fat: use common get_device_and_partition functionRob Herring2012-09-25-66/+34
| | | | | | | | | | | | | | | | Convert fatload, fatls, and fatinfo to use common device and partition parsing function. With the common function "dev:part" can come from the environment and a '-' can be used in that case. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* | cmd_extX: use common get_device_and_partition functionRob Herring2012-09-25-190/+46
| | | | | | | | | | | | | | | | Convert ext2/4 load, ls, and write functions to use common device and partition parsing function. With the common function "dev:part" can come from the environment and a '-' can be used in that case. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* | ext4: remove init_fs/deinit_fsRob Herring2012-09-25-61/+8
| | | | | | | | | | | | | | There's no real need to expose this and it can be removed by using a static allocation. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* | disk/part: introduce get_device_and_partitionRob Herring2012-09-25-4/+78
| | | | | | | | | | | | | | | | | | | | | | | | All block device related commands (scsiboot, fatload, ext2ls, etc.) have simliar duplicated device and partition parsing and selection code. This adds a common function to replace various implementations. The new function has an enhancement over current versions. If no device or partition is specified on the command line, the bootdevice env variable will be used (scsiboot does this). Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* | disk/part: check bootable flag for DOS partitionsRob Herring2012-09-25-2/+10
| | | | | | | | | | | | | | Determine which partitions are bootable/active. In the partition listing, print "Boot" for partitions with the bootable/active flag set. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* | combine block device load commands into common functionRob Herring2012-09-25-409/+191
| | | | | | | | | | | | | | | | All the raw block load commands duplicate the same code. Starting with the ide version as it has progress updates convert ide, usb, and scsi boot commands to all use a common version. Signed-off-by: Rob Herring <rob.herring@calxeda.com>
* | disk: make get_partition_info() always available to disk.cStephen Warren2012-09-25-55/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that get_device_and_partition() always calls get_partition_info() when disk.c is compiled, we must always compile the function, rather than ifdef it away. The implementation must be conditional based on CONFIG_CMD_* etc., since that's what e.g. part_dos.c uses to ifdef out get_partition_info_dos(); CONFIG_DOS_PARTITION can be enabled even without those commands being enabled. Technically, this change is required before Rob's "disk/part: introduce get_device_and_partition" patch. However, at least when the compiler optimizer is turned on, it isn't required before then in practice, since get_device_and_partition() calls get_dev(), which is stubbed out in disk.c under exactly the same conditions that get_partition_info() is not compiled, and hence the compiler never generates code for the call to the missing function. However, in my later patch "disk: get_device_and_partition() "auto" partition and cleanup", the optimizer doesn't succeed at this, and may attempt to reference the undefined function. Signed-off-by: Stephen Warren <swarren@nvidia.com>
* | MAKEALL: fix per arch board listsAllen Martin2012-09-25-19/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | The LIST_arm rule included the Atmel boards twice (by virtue of including both LIST_at91 and LIST_ARM9) and was missing all the arm720t, arm946es, and arm1176 boards. Change this list to use boards_by_arch() which is less error prone. After this change "./MAKEALL arm" and "./MAKEALL -a arm" build the same boards. Also fix up some missing and duplicate boards to arm, mips, and m68k. Signed-off-by: Allen Martin <amartin@nvidia.com> Acked-by: Tom Rini <trini@ti.com>
* | ARM: arm1176: Define arch_cpu_init() at the SoC levelStephen Warren2012-09-25-8/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | Commit 86c6326 "ARM: arm1176: enable instruction cache in arch_cpu_init()" defined arch_cpu_init() in a file that is shared across all arm1176 SoCs. tnetv107x already implemented this function, which caused linking to break. Move the new conflicting arch_cpu_init() into arm1176/bcm2835/init.c so that it doesn't conflict; grep indicates this function is usually defined at the SoC-level, not the CPU-level, at least for ARM. Signed-off-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Marek Vasut <marex@denx.de>
* | Merge branch 'master' of git://git.denx.de/u-boot-mpc85xxTom Rini2012-09-25-2999/+2682
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| * | powerpc/mpc85xx/p1_p2_rdb: add all LAWs during SPLScott Wood2012-08-23-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | LAW init is skipped in the SPL payload because it's assumed that the SPL has taken care of it -- so make sure the SPL loads all the LAWs as is done on other boards. This bug was introduced by: commit 4589728e214958a4e6e011a081a68d360c49d7a5 Author: Kumar Gala <galak@kernel.crashing.org> Date: Fri Nov 11 08:14:53 2011 -0600 powerpc/85xx: Fix builds of P1020/P2020RDB-PC_36BIT_NAND Size grew a bit so nand-spl didn't fit in 4k, reduce done by removing LAW entries not needed during SPL phase. Signed-off-by: Scott Wood <scottwood@freescale.com>
| * | Revert "powerpc: Fix declaration type for I/O functions"Andy Fleming2012-08-23-10/+10
| | | | | | | | | | | | This reverts commit 20959471b5d07fdeb8603b918d80385aa2954711.
| * | powerpc/p1_p2_rdb_pc: print -PC suffix in board nameScott Wood2012-08-23-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the -PC variants of the P1/P2 RDB boards do not print it on boot -- e.g. a P2020RDB-PC will claim to be a plain P2020RDB. Besides being incorrect, this can confuse a user into building U-Boot for P2020RDB rather than P2020RDB-PC, resulting in a board that does not boot. P1024RDB and P1025RDB are not included, as these boards apparently do not have -PC as part of their name, even though they are supported by p1_p2_rdb_pc. The P2020RDB variant covered by this is apparently P2020RDB-PCA rather than P2020RDB-PC. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/85xx: clear out TLB on bootScott Wood2012-08-23-33/+48
| | | | | | | | | | | | | | | | | | | | | | | | Instead of just shooting down the entry that covers CCSR, clear out every TLB entry that isn't the one that we're executing out of. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc8xxx: Move HWCONFIG_BUFFER_SIZE into config.hYork Sun2012-08-23-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Before proper environment is setup, we extract hwconfig and put it into a buffer with size HWCONFIG_BUFFER_SIZE. We need to enlarge the buffer to accommodate longer string. Since this macro is used in multiple files, we move it into arch/powerpc/include/asm/config.h. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc8xxx DDR: Fix interactive DDR debuggingYork Sun2012-08-23-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Add one more argument to call function readline_into_buffer(). Fix print SPD format for negative values. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc8xxx DDR: Fall back to raw timing for first controller onlyYork Sun2012-08-23-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Only the first DIMM of first controller should fall back to raw timing parameters if SPD is missing or corrupted. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc8xxx DDR: Fix CAS latency calculationYork Sun2012-08-23-2/+4
| | | | | | | | | | | | | | | | | | | | | Empty slot should be skipped when calculating CAS latency. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc8xxx: Fix bug for extended DDR timingYork Sun2012-08-23-20/+43
| | | | | | | | | | | | | | | | | | | | | | | | Faster DDR3 timing requires parameters exceeding previously defined range. Extended parameters are fixed. Added some debug messages. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc8xxx: Enable 3-way and 4-way DDR interleavingYork Sun2012-08-23-320/+489
| | | | | | | | | | | | | | | | | | | | | | | | Restructure DDR interleaving option to support 3 and 4 DDR controllers for 2-, 3- and 4-way interleaving. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc8xxx: Add support for cas latency 12 and aboveYork Sun2012-08-23-7/+21
| | | | | | | | | | | | | | | | | | | | | | | | Required by JEDEC 79-3E for high speed DDR3. Also change "CSn disabled" message to debug. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc8xxx: Add fine timing support for DDR3York Sun2012-08-23-13/+42
| | | | | | | | | | | | | | | | | | | | | | | | When the DDR3 speed goes higher, we need to utilize fine offset from SPD. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc85xx: Skip zero values for DDR debug registersYork Sun2012-08-23-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some debug registers have non-zero default out of reset. If software is not setting debug registers, skip writing to them to avoid unnecessary overriding. Also add debug messages for workarounds and debug registers. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc8xxx: fix core id for multicore bootingYork Sun2012-08-23-6/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the cores with multiple threads, we need to figure out which physical core a thread belongs. To match the core ids, update PIR registers and spin tables. Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | Added new ext fields to IFCKumar Gala2012-08-23-6/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In case more than 32 bit address is used, the EXT bit should be set. Need to fix up address map for IFC #CS for 4, also need to move # of IFC banks into config_mpc85xx.h Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | Add IFC offset for DPAA/Corenet platformsKumar Gala2012-08-23-0/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | Add e6500 processor detectionKumar Gala2012-08-23-0/+4
| | | | | | | | | | | | | | | Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc8xxx: use topology registers to calculate number of coresYork Sun2012-08-23-9/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | We have actual topology infomation to find out exactly which core is present. Calculate the number of cores if not specified. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc8xxx: Add immap for topology and rcpm registersYork Sun2012-08-23-1/+87
| | | | | | | | | | | | | | | | | | Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: York Sun <yorksun@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc85xx: Add IFC LAW target ID for FSL High-End SoCPrabhakar Kushwaha2012-08-23-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Freescale's High-End SoC are going to have Integrated Flash controller (IFC)'s support. So add IFC LAW target ID support for High-End SoC or corenet SoC. Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/mpc85xx:Enable debugger support to missed e500v2 SoCPrabhakar Kushwaha2012-08-23-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Freescale's e500v1 and e500v2 cores (used in mpc85xx chips) have some restrictions on external debugging (JTAG). Need to define define CONFIG_SYS_PPC_E500_DEBUG_TLB to enable a temporary TLB entry to be used during boot to work around the limitations. Enable missed e500v2 SoC i.e. MPC8536, MPC8544, MPC8548 and MPC8572 for debug support. Signed-off-by: Radu Lazarescu <radu.lazarescu@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Cc: Tang Yuantian <Yuantian.Tang@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * | powerpc/fsl-corenet: work around erratum A004510Scott Wood2012-08-23-0/+355
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Erratum A004510 says that under certain load conditions, modified cache lines can be discarded, causing data corruption. To work around this, several CCSR and DCSR register updates need to be made in a careful manner, so that there is no other transaction in corenet when the update is made. The update is made from a locked cacheline, with a delay before to flush any previous activity, and a delay after to flush the CCSR/DCSR update. We can't use a readback because that would be another corenet transaction, which is not allowed. We lock the subsequent cacheline to prevent it from being fetched while we're executing the previous cacheline. It is filled with nops so that a branch doesn't cause us to fetch another cacheline. Ordinarily we are running in a cache-inhibited mapping at this point, so we temporarily change that. We make it guarded so that we should never see a speculative load, and we never do an explicit load. Thus, only the I-cache should ever fill from this mapping, and we flush/unlock it afterward. Thus we should avoid problems from any potential cache aliasing between inhibited and non-inhibited mappings. NOTE that if PAMU is used with this patch, it will need to use a dedicated LAW as described in the erratum. This is the responsibility of the OS that sets up PAMU. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>