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* env: only build env_embedded and envcrc when neededMike Frysinger2009-10-18-0/+5
| | | | | | | | | | | | | The env code is protected by the ENV_IS_EMBEDDED define, so attempting to compile the code when this isn't defined is pointless. Now that the env headers have unified around CONFIG_ENV_IS_EMBEDDED, convert the build system to only build the env objects when this is enabled. And now that the env code is conditionally compiled, we can drop the source code checks. For people who want to extract the environment manually, add a new option CONFIG_BUILD_ENVCRC that only enables the envcrc utility. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* galaxy5200: change cs1 configurationEric Millbrandt2009-10-18-1/+1
| | | | | | Correct the chip select configuration for the nand flash chip select. Signed-off-by: Eric Millbrandt <emillbrandt@dekaresearch.com>
* mpc86xx: delete unused MPC86xx_DDR_SDRAM_CLK_CNTL definePaul Gortmaker2009-10-16-6/+0
| | | | | | | | This is an orphaned legacy leftover that is just polluting the config file namespace. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* ppc/P1_P2_RDB: On-chip BootROM supportDipen Dudhat2009-10-16-1/+16
| | | | | | | | | On Chip BootROM support for P1 and P2 series RDB platforms. This patch is derived from latest On Chip BootROM support on MPC8536DS Signed-off-by: Dipen Dudhat <dipen.dudhat@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* ppc/P1_P2_RDB: NAND Boot SupportDipen Dudhat2009-10-16-7/+65
| | | | | | | | | NAND Boot support for P1 and P2 series RDB platforms. This patch is derived from NAND Boot support on MPC8536DS. Signed-off-by: Dipen Dudhat <dipen.dudhat@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* Merge branch 'master' of git://git.denx.de/u-boot-blackfinWolfgang Denk2009-10-15-1/+3
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| * Blackfin: Remove relocation fixupsMike Frysinger2009-10-13-1/+3
| | | | | | | | | | | | Blackfin pieces like commit 0630535e2d062dd73c1ceca5c6125c86d1127a49. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | at91: Update MEESC board supportDaniel Gorsulowski2009-10-13-17/+8
| | | | | | | | | | | | | | | | | | | | | | This patch implements several updates: -disable CONFIG_ENV_OVERWRITE -add new hardware style variants and set the arch numbers appropriate -pass the serial# and hardware revision to the kernel -removed unused macros from include/configs/meesc.h -fixed multiline comment style Signed-off-by: Daniel Gorsulowski <Daniel.Gorsulowski@esd.eu>
* | TI: OMAP3: Overo Tobi ethernet supportOlof Johansson2009-10-13-2/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | Add setup for ethernet on Tobi, allowing kernel/ramdisk to be loaded over tftp. This also refactors the smc911x driver to allow for detecting when the chip is missing. I.e. the detect_chip() function is called earlier and will abort gracefully when the Chip ID read returns all 1's. Signed-off-by: Olof Johansson <olof@lixom.net> Acked-by: Dirk Behme <dirk.behme@googlemail.com> Acked-by: Ben Warren <biggerbadderben@gmail.com>
* | TI OMAP3 Use arm init sequence to initialize i2cTom Rix2009-10-13-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes fixes an early i2c error. It appears that I2C is working because once a read or write error is detected, the omap24xx_i2c driver calls i2c_init inside its error handling check. While it is ok to attempt error handling this way, the boards must not depend on this side effect to initialize it's i2c. Instead of explicitly calling i2c_init for every board, use the generic arm initialization in lib_arm/board.c. By defining the config variable CONFIG_HARD_I2C, the omap3 i2c initialization is included in the init_sequence table. Run tested on Beagle. Compile tested on the omap3's Signed-off-by: Tom Rix <Tom.Rix@windriver.com> Acked-by: Dirk Behme <dirk.behme@googlemail.com>
* | TI: DaVinci: GPIO header file and definitionsSandeep Paulraj2009-10-13-0/+53
| | | | | | | | | | | | | | | | | | | | | | Some DaVinci SOC's use GPIOs to enable EMAC and DM9000. This patch adds some definitions for GPIO registers and also adds structures for GPIO. A separate header file is being added so that in future we can have a DaVinci GPIO driver similer to OMAP. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Acked-by: Tom Rix <Tom.Rix@windriver.com>
* | TI: DaVinci DM646x: Update flag used to represent DM646x SOC'sSandeep Paulraj2009-10-13-3/+3
| | | | | | | | | | | | | | | | | | | | | | In the DaVinci specific code, we use both CONFIG_SOC_DM646X and CONFIG_SOC_DM646x to represent DM646x specific code. This patch changes occurrences of CONFIG_SOC_DM646x to CONFIG_SOC_DM646X. This is because for DM644x series of SOCs we use the flag CONFIG_SOC_DM644X. We want some uniformity. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Acked-by: Tom Rix <Tom.Rix@windriver.com>
* | OMAP3 MMC: Fix warning dereferencing type-punned pointerDirk Behme2009-10-13-0/+7
| | | | | | | | | | | | | | | | | | Fix warning Dereferencing type-punned pointer will break strict-aliasing rules Signed-off-by: Dirk Behme <dirk.behme@googlemail.com> CC: Steve Sakoman <sakoman@gmail.com> Acked-by: Tom Rix <Tom.Rix@windriver.com>
* | Support for the OpenRD base boardSimon Kagstrom2009-10-13-0/+220
| | | | | | | | | | | | | | The implementation is borrowed from the sheevaplug board and the Marvell 1.1.4 code. Unsupported (or untested) is the SD card, PCIe and SATA. Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
* | Add support for Eukrea CPU9260/CPU9G20 SBCTom Rix2009-10-13-0/+453
| | | | | | | | | | | | | | | | | | these boards are built around Atmel's AT91SAM9260/9G20 and have up to 64MB of NOR flash, up to 128MB of SDRAM, up to 2GB of NAND and include a 10/100 Ethernet PHY in RMII mode. Signed-off-by: Eric Benard <eric@eukrea.com> Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
* | Add support for Eukrea CPUAT91 SBCTom Rix2009-10-13-0/+306
| | | | | | | | | | | | | | | | | | CPUAT91 is built around Atmel's AT91RM9200 and has up to 16MB of NOR flash, up to 128MB of SDRAM, and includes a Micrel KS8721 PHY in RMII mode. Signed-off-by: Eric Benard <eric@eukrea.com> Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
* | TI: DaVinci DM365: Minor config cleanupSandeep Paulraj2009-10-13-2/+0
| | | | | | | | | | | | | | | | | | | | The DM365 config was using the 'CONFIG_CMD_SAVEENV' flag. This is already included when we include the config_cmd_default.h header file. So this flag is removed. Also another flag to enable NAND functions was being enabled incorrectly. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* | TI DaVinci: DM355: Config Cleanup and UpdateSandeep Paulraj2009-10-13-9/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch does the following 1) Enables the NAND driver which is now available. 2) Enables the 'CONFIG_MTD_DEVICE' as without this the compilation will fail 3) We now have a safe place to store environment and defines an offset where this can be stored. This offset value is such that it is after the location where U-Boot is flashed using TI flash utilities. 4) Enables Bootdelay 5) Increases malloc() arena size. Manufacturers are coming out with NAND with large blocks sizes of upto 1 MiB. It has been noticed that as the block size of the NAND used is increased, if this particular value is not increased, the NAND driver will output out of memory errors. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* | TI DaVinci: DM646x: Initial Support for DM646x SOCSandeep Paulraj2009-10-13-0/+11
| | | | | | | | | | | | | | | | | | DM646x is an SOC from TI which has both an ARM and a DSP. There are multiple variants of the SOC mainly dealing with different core speeds. This patch adds the initial framework for the DM646x SOC. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* | TI DaVinci: DM6446: Fix Compilation error in NAND modeSandeep Paulraj2009-10-13-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | The Default mode that is built for the Davinci DVEVM happens to be the NOR mode. When we want to build for the NAND mode, we get a compilation error. This is overcome by defining the CONFIG_MTD_DEVICE flag in the NAND mode. The image built for NAND mode was successfully tested on the DaVinci DM6446 EVM. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
* | OMAP3 Move cache routine to cache.STom Rix2009-10-13-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | v7_flush_dcache_all, because it depends on omap ROM code is not generic. Rename the function to 'invalidate_dcache' and move it to the omap cpu directory. Collect the other omap cache routines l2_cache_enable and l2_cache_disable with invalide_dcache into cache.S. This means removing the old cache.c file that contained l2_cache_enable and l2_cache_disable. The conversion from cache.c to cache.S was done most through disassembling the uboot binary. The only significant change was to change the comparision for the return of get_cpu_rev from cmp r0, #0 beq earlier_than_label Which was lost information to cmp r0, #CPU_3XX_ES20 blt earlier_than_label The paths through the enable routine were verified by adding an infinite loop and seeing the hang. Then removing the infinite loop and seeing it continue. The disable routine is similar enough that it was not tested with this method. Run tested by cold booting from nand on beagle and zoom1. Compile tested on MAKEALL arm. Signed-off-by: Tom Rix <Tom.Rix@windriver.com>
* | TI DaVinci: Remove references to SZ_xxSandeep Paulraj2009-10-13-19/+13
|/ | | | | | | | | | This patch removes the asm/sizes.h header file from being included in the DaVinci SOC configs. References to SZ_xx have been replaced by appropriate bit shifted values. Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com> Acked-by: Wolfgang Denk <wd@denx.de>
* Update all board to support new bbmiiphy driver (with multibus support)Luigi 'Comio' Mantellini2009-10-10-0/+74
| | | | | Signed-off-by: Luigi 'Comio' Mantellini <luigi.mantellini@idf-hit.com> Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
* Rewrite the miiphybb (Bit-banged MII bus driver) in order to support an ↵Luigi 'Comio' Mantellini2009-10-10-1/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | arbitrary number of mii buses. This feature is useful when your board uses different mii buses for different phys and all (or a part) of these buses are implemented via bit-banging mode. The driver requires that the following macros should be defined into the board configuration file: CONFIG_BITBANGMII - Enable the miiphybb driver CONFIG_BITBANGMII_MULTI - Enable the multi bus support If the CONFIG_BITBANGMII_MULTI is not defined, the board's config file needs to define at least the following macros: MII_INIT - Generic code to enable the MII bus (optional) MDIO_DECLARE - Declaration needed to access to the MDIO pin (optional) MDIO_ACTIVE - Activate the MDIO pin as out pin MDIO_TRISTATE - Activate the MDIO pin as input/tristate pin MDIO_READ - Read the MDIO pin MDIO(v) - Write v on the MDIO pin MDC_DECLARE - Declaration needed to access to the MDC pin (optional) MDC(v) - Write v on the MDC pin The previous macros make the driver compatible with the previous version (that didn't support the multi-bus). When the CONFIG_BITBANGMII_MULTI is also defined, the board code needs to fill the bb_miiphy_buses[] array with a record for each required bus and declare the bb_miiphy_buses_num variable with the number of mii buses. The record (struct bb_miiphy_bus) has the following fields/callbacks (see miiphy.h for details): char name[] - The symbolic name that must be equal to the MII bus registered name int (*init)() - Initialization function called at startup time (just before the Ethernet initialization) int (*mdio_active)() - Activate the MDIO pin as output int (*mdio_tristate)() - Activate the MDIO pin as input/tristate pin int (*set_mdio)() - Write the MDIO pin int (*get_mdio)() - Read the MDIO pin int (*set_mdc)() - Write the MDC pin int (*delay)() - Delay function void *priv - Private data used by board specific code The board code will look like: struct bb_miiphy_bus bb_miiphy_buses[] = { { .name = miibus#1, .init = b1_init, .mdio_active = b1_mdio_active, ... }, { .name = miibus#2, .init = b2_init, .mdio_active = b2_mdio_active, ... }, ... int bb_miiphy_buses_num = sizeof(bb_miiphy_buses) / sizeof(bb_miiphy_buses[0]); Signed-off-by: Luigi 'Comio' Mantellini <luigi.mantellini@idf-hit.com> Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
* Merge branch 'reloc'Wolfgang Denk2009-10-09-29/+23
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| * ppc: Remove reloc_off field from global_data structurePeter Tyser2009-10-03-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Now that proper relocation is supported, the reloc_off field is no longer necessary. Note that the location of the standalone application jump table pointer in the global data structure is affected by this change, breaking execution of standalone applications compiled for previous versions of U-Boot. We therefore increment XF_VERSION to 6 Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Wolfgang Denk <wd@denx.de>
| * arm/microblaze/nios/nios2/sh: Remove relocation fixupsPeter Tyser2009-10-03-5/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These architectures don't need relocation fixups, so reduce their codesize a bit by defining CONFIG_RELOC_FIXUP_WORKS. Also remove the reloc_off field from their global data structures as it is no longer needed. Note that the location of the standalone application jump table pointer in the global data structure is affected by this change, breaking execution of standalone applications compiled for previous versions of U-Boot. We will therefore increment XF_VERSION in the next commit, which also touches this area. Signed-off-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Wolfgang Denk <wd@denx.de>
| * Conditionally perform common relocation fixupsPeter Tyser2009-10-03-0/+2
| | | | | | | | | | | | | | | | | | | | | | Add #ifdefs where necessary to not perform relocation fixups. This allows boards/architectures which support relocation to trim a decent chunk of code. Note that this patch doesn't add #ifdefs to architecture-specific code which does not support relocation. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
| * p3mx: Remove serial relocation fixupsPeter Tyser2009-10-03-1/+0
| | | | | | | | Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
| * fpga: Remove relocation fixupsPeter Tyser2009-10-03-17/+1
| | | | | | | | | | | | | | | | PPC boards are the only users of the current FPGA code which is littered with manual relocation fixups. Now that proper relocation is supported for PPC boards, remove FPGA manual relocation. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
| * ppc: Remove board-specific command table relocation fixupsPeter Tyser2009-10-03-1/+0
| | | | | | | | Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
| * ppc: Enable full relocation to RAMPeter Tyser2009-10-03-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | The following changes allow U-Boot to fully relocate from flash to RAM: - Remove linker scripts' .fixup sections from the .text section - Add -mrelocatable to PLATFORM_RELFLAGS for all boards - Define CONFIG_RELOC_FIXUP_WORKS for all boards Previously, U-Boot would partially relocate, but statically initialized pointers needed to be manually relocated. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
* | tqm5200: Correct comment and code in post_hotkeys_pressed.Detlev Zundel2009-10-08-6/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes the code and the comment according to the original intent of doing an intensive memory test when PSC6_3 is pulled low on the STK52xx. Notably PORT_CONFIG will be overridden with this correct code now, so beware. The original code only worked by coincidence depending on the PORT_CONFIG setting from the header file. The new code was tested to ensure that the (undocumented) memory test still works on the STK52x. Signed-off-by: Detlev Zundel <dzu@denx.de> CC: Martin Krause <Martin.Krause@tqs.de> Minor white-space cleanup. Signed-off-by: Wolfgang Denk <wd@denx.de>
* | mpc512x: fix fixed_sdram() init code.Wolfgang Denk2009-10-08-1/+12
| | | | | | | | | | | | | | | | | | | | Commit 054197ba and later fixes used an array to initialize some of the MDDRC parameters; however, the use of an array turned out to be a bad idea as it was not possible to correlate structure entries to array indices in readable and reliable way. Now we use a struct instead, which makes this self-explanatory. Signed-off-by: Wolfgang Denk <wd@denx.de>
* | ppc4xx: respect 80-chars per line in ppc*.h filesNiklaus Giger2009-10-07-870/+1038
| | | | | | | | | | | | | | | | After running checkstyle.pl on the three previous patches I noted that in the *.h files there were a lot of long lines. This patch solves this problem. Signed-off-by: Niklaus Giger <niklaus.giger@member.fsf.org> Signed-off-by: Stefan Roese <sr@denx.de>
* | ppc4xx: Cleanup some HW register namesNiklaus Giger2009-10-07-189/+216
| | | | | | | | | | | | | | | | | | | | Here you find all the changes in the include directory for new register names and adapting other ones to the names used by AMCC in their manuals, e.g. For 440EPx/GRPPC440EPx/GRX, Revision 1.15 – September 22, 2008 For PPC405GP Embedded Processor, Revision 1.02 – March 22, 2006 Signed-off-by: Niklaus Giger <niklaus.giger@member.fsf.org> Signed-off-by: Stefan Roese <sr@denx.de>
* | ppc4xx: Add PPC405EX(r) Rev D supportStefan Roese2009-10-07-2/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Unfortunately some Rev D PPC405EX/405EXr PVR's are identical with older 405EX(r) parts. Here a list: 0x12911475 - 405EX Rev D with Security *and* 405EX Rev A/B witout Sec 0x12911473 - 405EX Rev D without Security *and* 405EXr Rev A/B with Sec Since there are only a few older parts in the field, this patch now changes the PVR's above to represent the new Rev D versions. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Phong Vo" <pvo@amcc.com>
* | Convert SMC91111 Ethernet driver to CONFIG_NET_MULTI APIBen Warren2009-10-04-38/+72
| | | | | | | | | | | | | | | | | | | | | | | | | | | | All in-tree boards that use this controller have CONFIG_NET_MULTI added Also: - changed CONFIG_DRIVER_SMC91111 to CONFIG_SMC91111 - cleaned up line lengths - modified all boards that override weak function in this driver - modified all eeprom standalone apps to work with new driver - updated blackfin standalone EEPROM app after testing Signed-off-by: Ben Warren <biggerbadderben@gmail.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | net: add random_port() prototypeMike Frysinger2009-10-04-0/+3
| | | | | | | | | | | | | | | | | | | | The random_port() is meant to be used by other net code, but without a prototype, we get fun warnings like: dns.c: In function 'DnsSend': dns.c:89: warning: implicit declaration of function 'random_port' Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Ben Warren <biggerbadderben@gmail.com>
* | Merge branch 'master' of git://git.denx.de/u-boot-ppc4xxWolfgang Denk2009-10-03-4/+4
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| * | ppc4xx: Add SDRAM detection for PMC440 boardsMatthias Fuchs2009-10-02-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support to detect the amount of DDR2 SDRAM on PMC440 modules. Detection is done by probing through a list of available and supported hardware configurations from 1GByte down to 256MB. The static TLB entry is replaced by dynamically created entries. Signed-off-by: Matthias Fuchs <matthias.fuchs@esd.eu> Signed-off-by: Stefan Roese <sr@denx.de>
| * | ppc4xx: Merge PPC4xx DDR and DDR2 ECC handlingStefan Roese2009-10-02-7/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch merges the ECC handling (ECC parity byte writing) into one file (ecc.c) for all PPC4xx SDRAM controllers except for PPC440EPx/GRx. This exception is because only those PPC's use the completely different Denali SDRAM controller core. Previously we had two routines to generate/write the ECC parity bytes. With this patch we now only have one core function left. Tested on Kilauea (no ECC) and Katmai (with and without ECC). Signed-off-by: Stefan Roese <sr@denx.de> Cc: Felix Radensky <felix@embedded-sol.com> Cc: Grant Erickson <gerickson@nuovations.com> Cc: Pieter Voorthuijsen <pv@prodrive.nl>
| * | ppc4xx: Reorganize DDR2 ECC handlingFelix Radensky2009-10-02-0/+4
| |/ | | | | | | | | | | | | | | | | | | Reorganize DDR2 ECC handling to use common code for SPD DIMMs and soldered SDRAM. Also, use common code to display SDRAM info (ECC, CAS latency) for SPD and soldered SDRAM variants. Signed-off-by: Felix Radensky <felix@embedded-sol.com> Signed-off-by: Stefan Roese <sr@denx.de>
* | Merge branch 'master' of git://git.denx.de/u-boot-blackfinWolfgang Denk2009-10-03-2/+2
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| * Blackfin: update default console= settingsMike Frysinger2009-09-30-1/+1
| | | | | | | | | | | | | | The Linux kernel has changed the way it numbers serial ports, so update the default command line to match it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * Blackfin: bf533-ezkit: update env locationMike Frysinger2009-09-30-1/+1
| | | | | | | | | | | | | | | | The u-boot image has outgrown the current space and overflowed into the env sector. So move the env to the next available sector (we've already allocated the first few sectors anyways for u-boot). Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | Merge branch 'master' of git://git.denx.de/u-boot-mpc85xxWolfgang Denk2009-09-30-1677/+1773
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| * | On-chip ROM boot: MPC8536DS supportMingkai Hu2009-09-30-1/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The MPC8536E is capable of booting from the on-chip ROM - boot from eSDHC and boot from eSPI. When power on, the porcessor excutes the ROM code to initialize the eSPI/eSDHC controller, and loads the mian U-Boot image from the memory device that interfaced to the controller, such as the SDCard or SPI EEPROM, to the target memory, e.g. SDRAM or L2SRAM, then boot from it. The memory device should contain a specific data structure with control word and config word at the fixed address. The config word direct the process how to config the memory device, and the control word direct the processor where to find the image on the memory device, or where copy the main image to. The user can use any method to store the data structure to the memory device, only if store it on the assigned address. The on-chip ROM code will map the whole 4GB address space by setting entry0 in the TLB1, so the main image need to switch to Address space 1 to disable this mapping and map the address space again. This patch implements loading the mian U-Boot image into L2SRAM, so the image can configure the system memory by using SPD EEPROM. Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | NAND boot: MPC8536DS supportMingkai Hu2009-09-30-18/+77
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | MPC8536E can support booting from NAND flash which uses the image u-boot-nand.bin. This image contains two parts: a 4K NAND loader and a main U-Boot image. The former is appended to the latter to produce u-boot-nand.bin. The 4K NAND loader includes the corresponding nand_spl directory, along with the code twisted by CONFIG_NAND_SPL. The main U-Boot image just like a general U-Boot image except the parts that included by CONFIG_SYS_RAMBOOT. When power on, eLBC will automatically load from bank 0 the 4K NAND loader into the FCM buffer RAM where CPU can execute the boot code directly. In the first stage, the NAND loader copies itself to RAM or L2SRAM to free up the FCM buffer RAM, then loads the main image from NAND flash to RAM or L2SRAM and boot from it. This patch implements the NAND loader to load the main image into L2SRAM, so the main image can configure the RAM by using SPD EEPROM. In the first stage, the NAND loader copies itself to the second to last 4K address space, and uses the last 4K address space as the initial RAM for stack. Obviously, the size of L2SRAM shouldn't be less than the size of the image used. If so, the workaround is to generate another image that includes the code to configure the RAM by SPD and load it to L2SRAM first, then relocate the main image to RAM to boot up. Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * | mpc8536: fix board config file line lengthMingkai Hu2009-09-30-68/+79
| | | | | | | | | | | | | | | Signed-off-by: Mingkai Hu <Mingkai.hu@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
generated by cgit v1.1 at 2024-12-17 08:07:15 +0000