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* kbuild: use Linux Kernel build scriptsMasahiro Yamada2014-02-19-48/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | Now we are ready to switch over to real Kbuild. This commit disables temporary scripts: scripts/{Makefile.build.tmp, Makefile.host.tmp} and enables real Kbuild scripts: scripts/{Makefile.build,Makefile.host,Makefile.lib}. This switch is triggered by the line in scripts/Kbuild.include -build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build.tmp obj +build := -f $(if $(KBUILD_SRC),$(srctree)/)scripts/Makefile.build obj We need to adjust some build scripts for U-Boot. But smaller amount of modification is preferable. Additionally, we need to fix compiler flags which are locally added or removed. In Kbuild, it is not allowed to change CFLAGS locally. Instead, ccflags-y, asflags-y, cppflags-y, CFLAGS_$(basetarget).o, CFLAGS_REMOVE_$(basetarget).o are prepared for that purpose. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
* kbuild: change out-of-tree buildMasahiro Yamada2014-02-19-279/+141
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This commit changes the working directory where the build process occurs. Before this commit, build process occurred under the source tree for both in-tree and out-of-tree build. That's why we needed to add $(obj) prefix to all generated files in makefiles like follows: $(obj)u-boot.bin: $(obj)u-boot Here, $(obj) is empty for in-tree build, whereas it points to the output directory for out-of-tree build. And our old build system changes the current working directory with "make -C <sub-dir>" syntax when descending into the sub-directories. On the other hand, Kbuild uses a different idea to handle out-of-tree build and directory descending. The build process of Kbuild always occurs under the output tree. When "O=dir/to/store/output/files" is given, the build system changes the current working directory to that directory and restarts the make. Kbuild uses "make -f $(srctree)/scripts/Makefile.build obj=<sub-dir>" syntax for descending into sub-directories. (We can write it like "make $(obj)=<sub-dir>" with a shorthand.) This means the current working directory is always the top of the output directory. Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com> Tested-by: Gerhard Sittig <gsi@denx.de>
* nand-spl: Use scripts/Makefile.buildMasahiro Yamada2014-02-19-111/+1
| | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Merge branch 'master' of git://git.denx.de/u-boot-mpc85xxTom Rini2013-12-02-4/+5
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| * Driver/DDR: combine ccsr_ddr for 83xx, 85xx and 86xxYork Sun2013-11-25-1/+2
| | | | | | | | | | | | | | Fix ccsr_ddr structure to avoid using typedef. Combine DDR2 and DDR3 structure for 83xx, 85xx and 86xx. Signed-off-by: York Sun <yorksun@freescale.com>
| * Driver/DDR: Moving Freescale DDR driver to a common driverYork Sun2013-11-25-4/+4
| | | | | | | | | | | | | | Freescale DDR driver has been used for mpc83xx, mpc85xx, mpc86xx SoCs. The similar DDR controllers will be used for ARM-based SoCs. Signed-off-by: York Sun <yorksun@freescale.com>
* | nand_spl: trivial refactoring of makefilesMasahiro Yamada2013-11-25-284/+242
|/ | | | Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
* Coding Style cleanup: replace leading SPACEs by TABsWolfgang Denk2013-10-14-1/+1
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Drop changes for PEP 4 following python tools] Signed-off-by: Tom Rini <trini@ti.com>
* Add GPL-2.0+ SPDX-License-Identifier to source filesWolfgang Denk2013-07-24-550/+33
| | | | | | Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
* board/p1010rdb:Add NAND boot support using new SPL formatPrabhakar Kushwaha2013-06-20-552/+0
| | | | | | | | | | - defines constants - Add spl_minimal.c to initialise DDR - update TLB entries as per NAND boot - remove nand_spl support for P1010RDB Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
* arm: Remove support for smdk6400Benoît Thébaudeau2013-04-12-239/+0
| | | | | | | | The migration of boards from Makefile to boards.cfg was due for v2012.03, but smdk6400 did not follow, and it does not build, so move it to scrapyard. It will still be possible to restore it from the Git history before fixing it. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
* nand: mxc: Switch NAND SPL to generic SPLBenoît Thébaudeau2013-04-12-696/+0
| | | | | | | | | This also fixes support for mx31pdk and tx25, which had been broken by commit e05e5de7fae5bec79617e113916dac6631251156. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Acked-by: Scott Wood <scottwood@freescale.com> Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
* arm: relocate_code(): Use __image_copy_end for end of relocationBenoît Thébaudeau2013-04-12-0/+4
| | | | | | | | | | | | Use __image_copy_end instead of __bss_start for the end of the image to relocate. This is the same as commit 033ca72, but applied to all ARM start.S. This is a more appropriate symbol naming for an image copy & relocate feature, and this also saves a useless copy of data put between __image_copy_end and __bss_start in linker scripts (e.g. relocation information, or MMU initialization tables used only before jumping to the relocated image). Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
* nand: mxc: Add support for i.MX5Benoît Thébaudeau2013-04-12-2/+65
| | | | | | Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Acked-by: Scott Wood <scottwood@freescale.com> Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
* nand: mxc: Prepare to add support for i.MX5Benoît Thébaudeau2013-04-12-22/+25
| | | | | | | | | | | Add some abstraction to NFC definitions so that some parts of the current code can also be used for future i.MX5 code. Clean up a few things by the way. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Acked-by: Scott Wood <scottwood@freescale.com> Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
* Merge branch 'master' of git://git.denx.de/u-boot-armTom Rini2013-03-18-51/+11
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Albert's rework of the linker scripts conflicted with Simon's making everyone use __bss_end. We also had a minor conflict over README.scrapyard being added to in mainline and enhanced in u-boot-arm/master with proper formatting. Conflicts: arch/arm/cpu/ixp/u-boot.lds arch/arm/cpu/u-boot.lds arch/arm/lib/Makefile board/actux1/u-boot.lds board/actux2/u-boot.lds board/actux3/u-boot.lds board/dvlhost/u-boot.lds board/freescale/mx31ads/u-boot.lds doc/README.scrapyard include/configs/tegra-common.h Build tested for all of ARM and run-time tested on am335x_evm. Signed-off-by: Tom Rini <trini@ti.com>
| * Refactor linker-generated arraysAlbert ARIBAUD2013-03-12-51/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refactor linker-generated array code so that symbols which were previously linker-generated are now compiler- generated. This causes relocation records of type R_ARM_ABS32 to become R_ARM_RELATIVE, which makes code which uses LGA able to run before relocation as well as after. Note: this affects more than ARM targets, as linker- lists span possibly all target architectures, notably PowerPC. Conflicts: arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds arch/arm/cpu/armv7/omap-common/u-boot-spl.lds board/ait/cam_enc_4xx/u-boot-spl.lds board/davinci/da8xxevm/u-boot-spl-da850evm.lds board/davinci/da8xxevm/u-boot-spl-hawk.lds board/vpac270/u-boot-spl.lds Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
* | Replace __bss_end__ with __bss_endSimon Glass2013-03-15-12/+12
|/ | | | | | | | | | | | | Note this is a tree-wide change affecting multiple architectures. At present we use __bss_start, but mostly __bss_end__. This seems inconsistent and in a number of places __bss_end is used instead. Change to use __bss_end for the BSS end symbol throughout U-Boot. This makes it possible to use the asm-generic/sections.h file on all archs. Signed-off-by: Simon Glass <sjg@chromium.org>
* Merge remote-tracking branch 'mpc83xx/next'Kim Phillips2013-01-16-169/+6
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| * powerpc/mpc83xx: convert MPC8313ERDB to new-SPLScott Wood2012-12-19-163/+0
| | | | | | | | | | | | | | This converts MPC8313ERDB NAND boot to use the new SPL infrastructure. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
| * powerpc/mpc83xx: add support for new SPLScott Wood2012-12-19-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | This adds arch support for PPC mpc83xx to boot "minimal" (4K) SPLs using the new infrastructure. Existing nand_spl targets are updated to deal with the name change from nand_init.c to spl_minimal.c (as in theory this isn't limited to NAND anymore). Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
* | arm: move C runtime setup code in crt0.SAlbert ARIBAUD2013-01-08-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move all the C runtime setup code from every start.S in arch/arm into arch/arm/lib/crt0.S. This covers the code sequence from setting up the initial stack to calling into board_init_r(). Also, rewrite the C runtime setup and make functions board_init_*() and relocate_code() behave according to normal C semantics (no jumping across the C stack any more, etc). Some SPL targets had to be touched because they use start.S explicitly or for some reason; the relevant maintainers and custodians are cc:ed. Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
* | Merge branch 'master' of git://git.denx.de/u-boot into resolveMinkyu Kang2012-12-10-368/+50
|\ \ | |/ | | | | | | | | | | | | | | | | | | Conflicts: README board/samsung/universal_c210/universal.c drivers/misc/Makefile drivers/power/power_fsl.c include/configs/mx35pdk.h include/configs/mx53loco.h include/configs/seaboard.h
| * 8xxx: Change all 8*xx_DDR addresses to 8xxxAndy Fleming2012-11-27-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There were a number of shared files that were using CONFIG_SYS_MPC85xx_DDR_ADDR, or CONFIG_SYS_MPC86xx_DDR_ADDR, and several variants (DDR2, DDR3). A recent patchset added 85xx-specific ones to code which was used by 86xx systems. After reviewing places where these constants were used, and noting that the type definitions of the pointers assigned to point to those addresses were the same, the cleanest approach to fixing this problem was to unify the namespace for the 85xx, 83xx, and 86xx DDR address definitions. This patch does: s/CONFIG_SYS_MPC8.xx_DDR/CONFIG_SYS_MPC8xxx_DDR/g All 85xx, 86xx, and 83xx have been built with this change. Signed-off-by: Andy Fleming <afleming@freescale.com> Tested-by: Andy Fleming <afleming@freescale.com> Acked-by: Kim Phillips <kim.phillips@freescale.com>
| * powerpc/mpc85xx/p1_p2_rdb_pc: convert from nand_spl to new splScott Wood2012-11-26-274/+0
| | | | | | | | | | Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Andy Fleming <afleming@freescale.com>
| * spl/mpc85xx: rename cpu_init_nand.c to spl_minimal.cScott Wood2012-11-26-28/+28
| | | | | | | | | | | | | | There is nothing really NAND-specific about this file. Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Andy Fleming <afleming@freescale.com>
| * spl/mpc85xx: move udelay to cpu codeScott Wood2012-11-26-55/+3
| | | | | | | | | | | | | | | | | | It applies to non-Freescale 85xx boards as well as Freescale boards, so it doesn't belong in board/freescale. Plus, it needs to come out of nand_spl if it's to be used by the new SPL. Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Andy Fleming <afleming@freescale.com>
| * powerpc/mpc8xxx: move LAW code into arch/powerpc/cpu/mpc8xxxScott Wood2012-11-26-7/+7
| | | | | | | | | | | | | | | | | | | | | | It's arch code and not a driver, so move it where it belongs. When it originally went into drivers/misc there was no 8xxx CPU directory. This will make new-SPL support a little easier since we can keep the CPU stuff together and not need to pull stuff in from drivers/misc. Signed-off-by: Scott Wood <scottwood@freescale.com> Cc: Andy Fleming <afleming@freescale.com>
| * nand_spl: fix u-boot.lst breakageScott Wood2012-11-14-8/+16
| | | | | | | | | | | | | | | | | | | | | | | | Commit 97b24d3d51a92cb8c0c1e1a74abf22fe1a1807a3 "common: Add symbol handling for generic lists into Makefile" introduced build errors in many nand_spl targets, complaining of a missing u-boot.lst. When not doing an out-of-tree build, $(obj) expands to nothing, so GCC ended up being given -I with no argument (or rather, -ansi was the argument). The failure didn't show up during a -j1 build because it was picking up the non-SPL version of u-boot.lst. Signed-off-by: Scott Wood <scottwood@freescale.com>
* | Merge git://git.denx.de/u-bootStefano Babic2012-11-10-27/+78
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| * common: Discard the __u_boot_cmd sectionMarek Vasut2012-10-22-9/+0
| | | | | | | | | | | | | | | | | | | | | | The command declaration now uses the new LG-array method to generate list of commands. Thus the __u_boot_cmd section is now superseded and redundant and therefore can be removed. Also, remove externed symbols associated with this section from include/command.h . Signed-off-by: Marek Vasut <marex@denx.de> Cc: Joe Hershberger <joe.hershberger@gmail.com> Cc: Mike Frysinger <vapier@gentoo.org>
| * common: Add .u_boot_list into all linker filesMarek Vasut2012-10-22-0/+15
| | | | | | | | | | | | | | | | | | | | Add section for the linker-generated lists into all possible linker files, so that everyone can easily use these lists. This is mostly a mechanical adjustment. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Joe Hershberger <joe.hershberger@gmail.com> Cc: Mike Frysinger <vapier@gentoo.org>
| * common: Add symbol handling for generic lists into MakefileMarek Vasut2012-10-22-18/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds essential components for generation of the contents of the linker section that is used by the linker-generated array. All of the contents is held in a separate file, u-boot.lst, which is generated at runtime just before U-Boot is linked. The purpose of this code is to especially generate the appropriate boundary symbols around each subsection in the section carrying the linker-generated arrays. Obviously, the interim linker code for actual placement of the variables into the section is generated too. The generated file, u-boot.lst, is included into u-boot.lds via the linker INCLUDE directive in u-boot.lds . Adjustments are made in the Makefile and spl/Makefile so that the u-boot.lds and u-boot-spl.lds depend on their respective .lst files. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Joe Hershberger <joe.hershberger@gmail.com> Cc: Mike Frysinger <vapier@gentoo.org> Acked-by: Joe Hershberger <joe.hershberger@ni.com> Tested-by: Joe Hershberger <joe.hershberger@ni.com>
* | ARM: Fix start.S when used with SPL in arm1136Stefano Babic2012-10-26-0/+2
|/ | | | | | | | This patch modifies start.S for the arm1136 to make it conform to start.S in armv7 architecture, to make it usable if the SPL framework is used. Signed-off-by: Stefano Babic <sbabic@denx.de>
* Merge branch 'master' of git://git.denx.de/u-boot-mpc85xxTom Rini2012-09-25-114/+187
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| * nand_spl: change out_be32 to raw_writel and depend on subsequent syncMatthew McClintock2012-08-23-73/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | This change reduces the SPL size by removing the redundant syncs produced by out_be32 and just replies on one final sync Done with: sed -r '/in_be32/b; s/(out_be32)\(([^,]*),\s+(.*)\)/__raw_writel(\3, \2)/g' -i `git grep --name-only sdram_init nand_spl/` Signed-off-by: Matthew McClintock <msm@freescale.com> Acked-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * nand_spl: p1023rds: wait before enabling DDR controllerMatthew McClintock2012-08-23-5/+20
| | | | | | | | | | | | | | | | We have a requirement to wait a period of time before enabling the DDR controller Signed-off-by: Matthew McClintock <msm@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * nand_spl: update udelay for Freescale boardsMatthew McClintock2012-08-23-15/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Let's use the more appropriate udelay for the nand_spl. While we can't make use of u-boot's full udelay we can atl east use a for loop that won't get optimized away .Since we have the bus clock we can use the timebase to calculate wall time. Looked at reusing the u-boot udelay functions but it pulls in a lot of code and would require quite a bit of work to keep us within the very small space constrains we currently have Signed-off-by: Matthew McClintock <msm@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * powerpc/p1010rdb: nandboot: compare SVR properlyMatthew McClintock2012-08-23-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We were not comparing the SVRs properly previously. This comparison will properly shift the SVR and mask off the E bit This fixes the boot output to show the correct DDR bus width: 512 MiB (DDR3, 16-bit, CL=5, ECC off) instead of 512 MiB (DDR3, 32-bit, CL=5, ECC off) Signed-off-by: Matthew McClintock <msm@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * p1014rdb: set ddr bus width properly depending on SVRMatthew McClintock2012-08-23-0/+11
| | | | | | | | | | | | | | | | | | | | Currently, for NAND boot for the P1010/4RDB we hard code the DDR configuration. We can still dynamically set the DDR bus width in the nand spl so the P1010/4RDB boards can boot from the same u-boot image Signed-off-by: Matthew McClintock <msm@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
| * nand/fsl_elbc: shrink SPL a bit by converting out_be32() to __raw_writel()Scott Wood2012-08-22-22/+25
| | | | | | | | | | | | | | | | | | This is needed to make room for a bugfix on p1_p2_rdb_pc. A sync is used before the final write to LSOR that initiates the transaction, to ensure all the other set up has been completed. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Andy Fleming <afleming@freescale.com>
* | mxc nand: Homogenize IP revisions with LinuxBenoît Thébaudeau2012-09-17-2/+2
| | | | | | | | | | | | | | | | | | | | Use the same IP revisions as in Linux in order to make the comparison more clear. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Scott Wood <scottwood@freescale.com>
* | spl mxc nand: Fix broken boot for correctable ECC errorsBenoît Thébaudeau2012-09-17-2/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | Do not stop boot as soon as an ECC error is detected. Only stop boot for uncorrectable ECC errors. This fixes boards no longer booting after some time because a NAND Flash bit has flipped. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Scott Wood <scottwood@freescale.com>
* | mxc nand: Access all ecc_status_result fieldsBenoît Thébaudeau2012-09-17-0/+4
| | | | | | | | | | | | | | | | | | | | | | On the NFC IP 1.1, the 32-bit ecc_status_result value comes from 2 consecutive 16-bit registers. This patch reads all the fields of this value, which makes a difference for 4-kiB NF pages. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Scott Wood <scottwood@freescale.com>
* | spl mxc nand: Set symmetric modeBenoît Thébaudeau2012-09-17-1/+2
| | | | | | | | | | | | | | | | | | | | | | Set the spl mxc nand driver for IP 1.1 in symmetric mode, like the mtd driver. In this way, for both drivers, one input clock period of the NFC IP will produce one R/W cycle. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Scott Wood <scottwood@freescale.com>
* | spl mxc nand: Remove duplicated codeBenoît Thébaudeau2012-09-17-8/+2
| | | | | | | | | | | | | | | | | | | | The ECC_EN and INT_MSK bits of CONFIG1 are not volatile, so it is sufficient to set them once in nfc_nand_init(). Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Scott Wood <scottwood@freescale.com>
* | spl mxc nand: Merge duplicated codeBenoît Thébaudeau2012-09-17-27/+23
| | | | | | | | | | | | | | | | | | Merge duplicated code into functions, which is better for SPL size too. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Scott Wood <scottwood@freescale.com>
* | mxc nand: cosmectic: Light cleanupBenoît Thébaudeau2012-09-17-7/+7
| | | | | | | | | | | | | | Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Scott Wood <scottwood@freescale.com>
* | mxc nand: Merge mtd and spl register definitionsBenoît Thébaudeau2012-09-17-29/+29
| | | | | | | | | | | | | | | | | | | | This patches fixes the TODO to use same register definitions in mtd mxc_nand and nand_spl fsl nfc drivers. Signed-off-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com> Cc: Scott Wood <scottwood@freescale.com> Cc: Stefano Babic <sbabic@denx.de> Signed-off-by: Scott Wood <scottwood@freescale.com>
* | ppc4xx: Canyonlands/Glacier: Squeeze NAND image a bit to fit againStefan Roese2012-09-03-3/+0
|/ | | | | | | This patch removes some superfluous SDRAM init calls to fit the NAND_SPL image into 4k again. Signed-off-by: Stefan Roese <sr@denx.de>