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* secure_boot: enable chain of trust for PowerPC platformsAneesh Bansal2016-01-27-0/+14
| | | | | | | | | | | | | | | Chain of Trust is enabled for PowerPC platforms for Secure Boot. CONFIG_BOARD_LATE_INIT is defined. In board_late_init(), fsl_setenv_chain_of_trust() is called which will perform the following: - If boot mode is non-secure, return (No Change) - If boot mode is secure, set the following environmet variables: bootdelay = 0 (To disable Boot Prompt) bootcmd = CONFIG_CHAIN_BOOT_CMD (Validate and execute Boot script) Signed-off-by: Aneesh Bansal <aneesh.bansal@nxp.com> Acked-by: Ruchika Gupta <ruchika.gupta@nxp.com> Reviewed-by: York Sun <york.sun@nxp.com>
* driver/ddr/fsl: Add workaround for A009663Shengzhou Liu2016-01-25-0/+3
| | | | | | | | | | | | Erratum A-009663 workaround requires to set DDR_INTERVAL[BSTOPRE] to 0 before setting DDR_SDRAM_CFG[MEM_EN] and set DDR_INTERVAL[BSTOPRE] to the desired value after DDR initialization has completed. When DDR controller is configured to operate in auto-precharge mode(DDR_INTERVAL[BSTOPRE]=0), this workaround is not needed. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Reviewed-by: York Sun <york.sun@nxp.com>
* Add more SPDX-License-Identifier tagsTom Rini2016-01-19-9/+3
| | | | | | | | | In a number of places we had wordings of the GPL (or LGPL in a few cases) license text that were split in such a way that it wasn't caught previously. Convert all of these to the correct SPDX-License-Identifier tag. Signed-off-by: Tom Rini <trini@konsulko.com>
* Fix GCC format-security errors and convert sprintfs.Ben Whitten2016-01-14-5/+5
| | | | | | | | | | | 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>
* Fix board init code to respect the C runtime environmentAlbert ARIBAUD2016-01-13-2/+4
| | | | | | | | | | | | | board_init_f_mem() alters the C runtime environment's stack it is actually already using. This is not a valid behaviour within a C runtime environment. Split board_init_f_mem into C functions which do not alter their own stack and always behave properly with respect to their C runtime environment. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net> Acked-by: Thomas Chou <thomas@wytron.com.tw>
* powerpc: Various typo fixes under arch/powerpc/cpu/mpc83xxRobert P. J. Day2016-01-08-20/+20
| | | | Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
* powerpc, mpc5xxx: fix missing bootflag initHeiko Schocher2016-01-05-0/+2
| | | | | | | | | | | | | | | | | | | | | | since: commit: f05ad9ba "Add a way to skip relocation" tqm5200s board fails to boot. Reason is that board_init_f has a function parameter bootflag, which is not setup in in arch/powerpc/cpu/mpc5xxx/start.S _start So board_init_f gets a undefined bootflag, currently the gd pointer address. Unfortunately this address sets the GD_FLG_SKIP_RELOC bit, so u-boot code gets not relocated and u-boot does not boot ... Init bootflag with 0, and tqm5200 boots fine again. Signed-off-by: Heiko Schocher <hs@denx.de> Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: York Sun <yorksun@freescale.com>
* fsl_*_serdes.c: Modify memset call in serdes_initTom Rini2015-12-13-1/+1
| | | | | | | | | | | GCC 5.x does not like sizeof(array_variable) and errors out. Change these calls to be instead sizeof(u8) (as that's what serdes_prtcl_map is) * SERDES_PRCTL_COUNT (the number of array elements). Cc: York Sun <yorksun@freescale.com> Signed-off-by: Tom Rini <trini@konsulko.com> Reviewed-by: Bin Meng <bmeng.cn@gmail.com> Reviewed-by: York Sun <yorksun@freescale.com>
* fsl/errata: move fsl_errata.h to common directoryShengzhou Liu2015-12-13-3/+3
| | | | | | | | | move arch/powerpc/include/asm/fsl_errata.h to include/fsl_errata.h to make it public for both ARM and POWER SoCs. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> [York Sun: fix soc.h path in fsl_errata.h] Reviewed-by: York Sun <yorksun@freescale.com>
* PPC4xx: Create "liebherr" vendor directoryWolfgang Denk2015-11-30-1/+1
| | | | | | | | | | In preparation of some new Liebherr boards to be added soon, a new "liebherr" vendor directory gets created, and the "lwmon5" board directory is moved into this new vendor directory. cc: Stefan Roese <sr@denx.de> Signed-off-by: Wolfgang Denk <wd@denx.de> Signed-off-by: Stefan Roese <sr@denx.de>
* ppc4xx: Remove remnants from ocotea, taishan, ebony and taihuStefan Roese2015-11-30-23/+0
| | | | | | | | The removal of some PPC4xx boards did not catch all references to these boards. This patch now removes all remnants still left. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Stefan Roese <sr@denx.de>
* Move console definitions into a new console.h fileSimon Glass2015-11-19-0/+3
| | | | | | | | The console includes a global variable and several functions that are only used by a small subset of U-Boot files. Before adding more functions, move the definitions into their own header file. Signed-off-by: Simon Glass <sjg@chromium.org>
* mpc83xx: Add strider boardDirk Eibach2015-11-12-0/+3
| | | | | | | | | | | | | | The gdsys strider board is based on a Freescale MPC8308 SOC. It boots from NOR-Flash, kernel and rootfs are stored on SD-Card. On board peripherals include: - 1x 10/100 Mbit/s Ethernet (optional) - Lattice ECP3 FPGA connected via eLBC Signed-off-by: Dirk Eibach <dirk.eibach@gdsys.cc> [trini: Drop setting CONFIG_SYS_GENERIC_BOARD, this is always true now] Signed-off-by: Tom Rini <trini@konsulko.com>
* powerpc: Finish updating u-boot*lds scripts for newer binutilsTom Rini2015-11-10-8/+0
| | | | | | | | In 522b021 we dropped 'PROVIDE(_GLOBAL_OFFSET_TABLE_ = . + 4)' lines in the mpc85xx linker scripts as this is not required and breaks newer binutils. This commit cleans up the rest of the powerpc linker scripts. Signed-off-by: Tom Rini <trini@konsulko.com>
* Various Makefiles: Add SPDX-License-Identifier tagsTom Rini2015-11-10-3/+5
| | | | | | | | | | | After consulting with some of the SPDX team, the conclusion is that Makefiles are worth adding SPDX-License-Identifier tags too, and most of ours have one. This adds tags to ones that lack them and converts a few that had full (or in one case, very partial) license blobs into the equivalent tag. Cc: Kate Stewart <kstewart@linuxfoundation.org> Signed-off-by: Tom Rini <trini@konsulko.com>
* mpc85xx/u-boot*.lds: remove _GLOBAL_OFFSET_TABLE_ definitionZhenhua Luo2015-11-09-4/+0
| | | | | | | | | | | | | | | | | | | | | In binutils-2.25, the _GLOBAL_OFFSET_TABLE_ symbols defined by PROVIDE in u-boot.lds overrides the linker built-in symbols (https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff; h=b893397a4b1316610f49819344817715e4305de9), so the linker is treating _GLOBAL_OFFSET_TABLE_ as a definition into the .reloc section. To align with the change of binutils-2.25, the _GLOBAL_OFFSET_TABLE_ symbol should not be defined in sections, and the symbols in linker generated .got section should be used(https://sourceware.org/ml/binutils/2008-09/ msg00122.html) Fixed the following build errors with binutils-2.25: | powerpc-poky-linux-gnuspe-ld.bfd: _GLOBAL_OFFSET_TABLE_ not defined in linker created .got Signed-off-by: Zhenhua Luo <zhenhua.luo@freescale.com> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
* powerpc: Remove __ilog2_u64 and ffs4 from bitopsFabio Estevam2015-11-05-4/+8
| | | | | | | | | | | | | Remove __ilog2_u64 and ffs4 from powerpc bitops to align with the kernel implementation. Use the generic __ffs64 instead of a custom powerpc implementation. Cc: York Sun <yorksun@freescale.com> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: Heiko Schocher <hs@denx.de> Reviewed-by: Jagan Teki <jteki@openedev.com>
* video: Drop DEV_EXT_VIDEO flagBin Meng2015-11-05-1/+0
| | | | | | DEV_EXT_VIDEO does not have any actual meaning, hence drop it. Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
* mpc85xx: Add support for the Varisys Cyrus boardAndy Fleming2015-11-04-0/+4
| | | | | | | | | | | This board runs a P5020 or P5040 chip, and utilizes an EEPROM with similar formatting to the Freescale P5020DS. Large amounts of this code were developed by Adrian Cox <adrian at humboldt dot co dot uk> Signed-off-by: Andy Fleming <afleming@gmail.com> Reviewed-by: York Sun <yorksun@freescale.com>
* mpc85xx/t2081: enable parsing DDR ratio for T2081 rev1.1Shengzhou Liu2015-11-02-1/+2
| | | | | | | | T2081 rev 1.1 changes MEM_PLL_RAT in RCW which requires new parsing for PLL ratio. Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* t1040d4rdb: assign muxed pins to qe-tdm when set hwconfig qe-tdmZhao Qiang2015-11-02-0/+11
| | | | | | | | | qe-tdm is muxed with diu, if hwconfig setted as qe-tdm, assign muxed pins to qe-tdm, then delete diu node from device tree. Signed-off-by: Zhao Qiang <qiang.zhao@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* arch/powerpc/cpu/ppc4xx/Kconfig: Finish removing boardsTom Rini2015-10-27-16/+0
| | | | | | | My patches to drop various ppc4xx boards were not build tested and omitted the Kconfig parts. Signed-off-by: Tom Rini <trini@konsulko.com>
* ppc4xx: Remove lcd4_lwmon5 supportStefan Roese2015-10-11-1/+0
| | | | | | | This platform has not gone into production. So lets remove it. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
* Revert "powerpc: ppc4xx: remove lwmon5 support"Stefan Roese2015-10-11-0/+5
| | | | | | | | | | This reverts commit 8fe11b8901a31d11990488c82bc23612589d57be. I'll add support to lwmon5 in the next patch and will remove support for the broken lcd4_lwmon5 as well. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
* powerpc: mpc85xx: remove stxgp3, stxssa supportMasahiro Yamada2015-09-02-8/+0
| | | | | | | | These have not been converted to Generic Board, so should be removed. (See doc/README.generic-board for details.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Dan Malek <dan@embeddedalley.com>
* powerpc: mpc5xx: remove cmi_mpc5xx supportMasahiro Yamada2015-09-02-4/+0
| | | | | | | This has not been converted to Generic Board, so should be removed. (See doc/README.generic-board for details.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* powerpc: ppc4xx: remove zeus supportMasahiro Yamada2015-09-02-19/+0
| | | | | | | | This has not been converted to Generic Board, so should be removed. (See doc/README.generic-board for details.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Stefan Roese <sr@denx.de>
* powerpc: ppc4xx: remove sbc405 supportMasahiro Yamada2015-09-02-4/+0
| | | | | | | This has not been converted to Generic Board, so should be removed. (See doc/README.generic-board for details.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
* powerpc: ppc4xx: remove pcs440ep supportMasahiro Yamada2015-09-02-4/+0
| | | | | | | | This has not been converted to Generic Board, so should be removed. (See doc/README.generic-board for details.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Stefan Roese <sr@denx.de>
* powerpc: ppc4xx: remove p3p440 supportMasahiro Yamada2015-09-02-4/+0
| | | | | | | | This has not been converted to Generic Board, so should be removed. (See doc/README.generic-board for details.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Stefan Roese <sr@denx.de>
* powerpc: ppc4xx: remove lwmon5 supportMasahiro Yamada2015-09-02-5/+0
| | | | | | | | | | | This has not been converted to Generic Board, so should be removed. (See doc/README.generic-board for details.) Remove CONFIG_LWMON5 references. (Also, remove undefined CONFIG_WD_MAX_RATE while I am here.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Stefan Roese <sr@denx.de>
* powerpc: ppc4xx: remove csb272, csb472 supportMasahiro Yamada2015-09-02-8/+0
| | | | | | | | These have not been converted to Generic Board, so should be removed. (See doc/README.generic-board for details.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Tolunay Orkun <torkun@nextio.com>
* powerpc: ppc4xx: remove alpr supportMasahiro Yamada2015-09-02-4/+0
| | | | | | | | This has not been converted to Generic Board, so should be removed. (See doc/README.generic-board for details.) Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Cc: Stefan Roese <sr@denx.de>
* net/fman: Support both new and legacy FMan CompatiblesIgal Liberman2015-09-01-18/+72
| | | | | | | | | | | | | | Recently the FMan Port and MAC compatibles were changed. This patch aligns the FMan Port and MAC compatibles to the new FMan device tree binding document. The FMan device tree binding document can be found in the Linux kernel: ./Documentation/devicetree/bindings/powerpc/fsl/fman.txt This patch doesn't affect legacy compatibles support. Signed-off-by: Igal Liberman <igal.liberman@freescale.com> Tested-by: Xing Lei <xing.lei@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* powerpc: e6500: Lock/unlock L2 cache instead of L1 as init_ramYork Sun2015-09-01-1/+9
| | | | | | | | | MPC85xx has been using locked L1 cache as init_ram. L1 cache is a write through cache on E6500. L2 cache is enabled to to hold the data. This patch locks/unlocks L2 cache to ensure no data cast out from L2 cache. Signed-off-by: York Sun <yorksun@freescale.com> Reported-by: Jeffery Zhu <Jefferry.Zhu@freescale.com>
* powerpc/t4240: update serdes tableShaohui Xie2015-07-31-55/+48
| | | | | | | | | | Serdes Lanes availability on T4160 and T4080 are same, which serdes 2 & 3 support 8 Lanes, but serdes 1 & 4 support only 4 Lanes E/F/G/H, Lanes A/B/C/D are not available, updated the serdes table accordingly with some minor fix. Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* powerpc/mpc85xx: SECURE BOOT- NAND secure boot target for P3041Aneesh Bansal2015-07-31-0/+11
| | | | | | | | | | | | | | | | | | | Secure Boot Target is added for NAND for P3041. For mpc85xx SoCs, the core begins execution from address 0xFFFFFFFC. In case of secure boot, this default address maps to Boot ROM. The Boot ROM code requires that the bootloader(U-boot) must lie in 0 to 3.5G address space i.e. 0x0 - 0xDFFFFFFF. In case of NAND Secure Boot, CONFIG_SYS_RAMBOOT is enabled and CPC is configured as SRAM. U-Boot binary will be located on SRAM configured at address 0xBFF00000. In the U-Boot code, TLB entries are created to map the virtual address 0xFFF00000 to physical address 0xBFF00000 of CPC configured as SRAM. Signed-off-by: Saksham Jain <saksham@freescale.com> Signed-off-by: Ruchika Gupta <ruchika.gupta@freescale.com> Signed-off-by: Aneesh Bansal <aneesh.bansal@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* powerpc/t1024: update fman liodn for mac1Shengzhou Liu2015-07-28-2/+1
| | | | | | | | | | | | MAC1 acts as 1G/10G dual-role MAC on T1024. We introduce macro SET_FMAN_RX_10G_TYPE2_LIODN for 10G MACs which have same Port ID and same offset of address with 1G MAC. Update it to match with the setting of fman in t1024 device tree, otherwise there is no 'fsl,liodn' in /proc/device-tree/soc@ffe000000/fman@400000/port@88000/ Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* arch: Make board selection choices optionalJoe Hershberger2015-05-12-0/+9
| | | | | | | | | | | | 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>
* ppc4xx: Remove sc3 boardStefan Roese2015-05-10-5/+1
| | | | | | | | | | | | | | | | As this board seems to be unmaintained for quite some time, and its not moved to the generic board ingrastructure, lets remove it. This will also enable us to remove the CONFIG_AUTOBOOT_DELAY_STR2 and CONFIG_AUTOBOOT_STOP_STR2 macros, as this sc3 board is the only one using one of this macros. A removal patch will follow soon. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Wolfgang Denk <wd@denx.de> Cc: Juergen Beisert <jbeisert@eurodsn.de> Acked-by: Heiko Schocher <hs@denx.de>
* powerpc/mpc85xx: Add board support for ucp1020Oleksandr G Zhadan2015-05-04-0/+4
| | | | | | | | | | New QorIQ p1020 based board support from Arcturus Networks Inc. http://www.arcturusnetworks.com/products/ucp1020/ Signed-off-by: Michael Durrant <mdurrant@arcturusnetworks.com> Signed-off-by: Oleksandr G Zhadan <oleks@arcturusnetworks.com> [York Sun: remove patman tags from commit message] Reviewed-by: York Sun <yorksun@freescale.com>
* mmc: fsl_esdhc: Add peripheral clock supportYangbo Lu2015-05-04-1/+48
| | | | | | | | | | | | The SD clock could be generated by platform clock or peripheral clock for some platforms. This patch adds peripheral clock support for T1024/T1040/T2080. To enable it, define CONFIG_FSL_ESDHC_USE_PERIPHERAL_CLK. Signed-off-by: Yangbo Lu <yangbo.lu@freescale.com> Cc: York Sun <yorksun@freescale.com> Cc: Pantelis Antoniou <panto@antoniou-consulting.com> Reviewed-by: York Sun <yorksun@freescale.com>
* powerpc/mpc85xx: Don't deref NULL if qman portal lacks cell-indexScott Wood2015-05-04-2/+7
| | | | | | Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Madalin-Cristian Bucur <madalin.bucur@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* powerpc: add 2 common dcache assembly functionsValentin Longchamp2015-05-04-164/+0
| | | | | | | | | | | | | | This patch defines the 2 flush_dcache_range and invalidate_dcache_range functions for all the powerpc architecture. Their implementation is borrowed from the kernel's misc_32.S file and replace the ones from mpc86xx and ppc4xx since they were equivalent. This is a fix for the problem introduced by this patch: http://patchwork.ozlabs.org/patch/448849/ Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com> Reviewed-by: Tom Rini <trini@konsulko.com> Reviewed-by: York Sun <yorksun@freescale.com>
* powerpc/t4rdb: Add SD boot support for T4240RDB boardChunhe Lan2015-05-04-0/+1
| | | | | | | | | | | | This patch adds SD boot support for T4240RDB board. SPL framework is used. PBL initializes the internal RAM and copies SPL to it. Then SPL initializes DDR using SPD and copies u-boot from SD card to DDR, finally SPL transfers control to u-boot. Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com> [York Sun: Fix T4240RDB_SDCARD_defcofig] Reviewed-by: York Sun <yorksun@freescale.com>
* drivers: usb: fsl: Workaround for Erratum A004477Nikhil Badola2015-05-04-0/+4
| | | | | | | | | | Add a delay of 1 microsecond before issuing soft reset to the controller to let ongoing ULPI transaction complete. This prevents corruption of ULPI Function Control Register which eventually prevents phy clock from entering to low power mode Signed-off-by: Nikhil Badola <nikhil.badola@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* mpc85xx/T4240EMU: Remove T4240EMU boardYork Sun2015-05-04-3/+0
| | | | | | | T4240 SoC has been available for a long time. Emulator support is no longer needed. Signed-off-by: York Sun <yorksun@freescale.com>
* powerpc/mpc85xx: Use GOT when loading IVORs post-relocationScott Wood2015-05-04-15/+20
| | | | | | | | | | | | | | | | | | | | | Commit 96d2bb952bb ("powerpc/mpc85xx: Don't relocate exception vectors") simplified IVOR initialization a bit too much, failing to use the post-relocation offset. This doesn't cause a problem with normal NOR boot, in which both the pre-relocation and post-relocation addresses are 64 KiB aligned. However, if TEXT_BASE is only 4 KiB aligned, such as for NAND/SD/etc. boot on some targets, as well as the QEMU target, the post-relocation address will not be the same in the lower 16 bits, as reserve_uboot() ensures that the relocation address is always 64 KiB aligned even if the pre-relocation address was not. Use the GOT to get the proper post-relocation offsets. Fixes: 96d2bb952bb ("powerpc/mpc85xx: Don't relocate exception vectors") Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Alexander Graf <agraf@suse.de> Cc: Shaohui Xie <Shaohui.Xie@freescale.com> Tested-by: Shaohui Xie <Shaohui.Xie@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
* driver/ifc: Add 64KB page supportJaiprakash Singh2015-04-23-6/+6
| | | | | | | | | | | | | | | | IFC has two register pages.Till IFC version 1.4 each register page is 4KB each.But IFC ver 2.0 register page size is 64KB each.IFC regiters structure is break into two viz FCM and RUNTIME.FCM(Flash control machine) registers are defined in PAGE0 and controls IFC generic functionality. RUNTIME registers are defined in PAGE1 and controls NAND and GPCM funcinality. FCM and RUNTIME structures defination is common for IFC version 1.4 and 2.0. Signed-off-by: Jaiprakash Singh <b44839@freescale.com> Signed-off-by: York Sun <yorksun@freescale.com>
* powerpc/mpc85xx: Remove some dead codeScott Wood2015-04-20-137/+1
| | | | | | | | | | | | | | | | | | | U-Boot does not have system calls (the services it exposes to standalone commands use a different mechanism), so the syscall handler is dead code. It's also broken code, as it assumes it is located at 0xc00 -- while even before the patch to stop relocating exception vectors to 0, U-Boot had the syscall at 0x900. The critical and machine check return paths are never called -- the regular exception return path is used instead, which works because xSRR0/1 have already been saved and can be restored via the regular SRR0/1 (we don't care too much in U-Boot about taking a critical/mcheck inside another exception prolog/epilog). Also remove a few other small unused functions. Signed-off-by: Scott Wood <scottwood@freescale.com> Reviewed-by: York Sun <yorksun@freescale.com>
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