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* armv7: add PL310 support to u-bootAneesh V2011-07-04-0/+6
| | | | | | | | | | | | | PL310 is the L2$ controller from ARM used in many SoCs including the Cortex-A9 based OMAP4430 Add support for some of the key PL310 operations - Invalidate all - Invalidate range - Flush(clean & invalidate) all - Flush range Signed-off-by: Aneesh V <aneesh@ti.com>
* armv7: cache maintenance operations for armv7Aneesh V2011-07-04-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | - Add a framework for layered cache maintenance - separate out SOC specific outer cache maintenance from maintenance of caches known to CPU - Add generic ARMv7 cache maintenance operations that affect all caches known to ARMv7 CPUs. For instance in Cortex-A8 these opertions will affect both L1 and L2 caches. In Cortex-A9 these will affect only L1 cache - D-cache operations supported: - Invalidate entire D-cache - Invalidate D-cache range - Flush(clean & invalidate) entire D-cache - Flush D-cache range - I-cache operations supported: - Invalidate entire I-cache - Add maintenance functions for TLB, branch predictor array etc. - Enable -march=armv7-a so that armv7 assembly instructions can be used Signed-off-by: Aneesh V <aneesh@ti.com>
* NAND: Add 16bit NAND support for the NDFCAlex Waterman2011-07-01-0/+8
| | | | | | | | | | | | | | | | | | | This patch adds support for 16 bit NAND devices attached to the NDFC on ppc4xx processors. Two config entries were added: CONFIG_SYS_NDFC_16 - Setting this tells the NDFC that a 16 bit device is attached. CONFIG_SYS_NDFC_EBC0_CFG - This is for the External Bus Controller configuration register. Also, a new ndfc_read_byte() function was added which does not first convert the data to little endian. The NAND SPL was also modified to do 16bit bad block testing when a 16 bit chip is being used. Signed-off-by: Alex Waterman <awaterman@dawning.com> Signed-off-by: Scott Wood <scottwood@freescale.com>
* ARM: drop unsupported 'trab' boardWolfgang Denk2011-06-22-2/+1
| | | | | | | | | | The 'trab' board configuration is broken, and there is nobody who is interested and willing to fix it. Drop it. This includes support for VFD displays which have always been used by this board only. Signed-off-by: Wolfgang Denk <wd@denx.de>
* powerpc/fsl_pci: Fix device tree fixups for newer platformsKumar Gala2011-05-20-0/+5
| | | | | | | | | | | | We assumed that only a small set of compatiable strings would be needed to find the PCIe device tree nodes to be fixed up. However on newer platforms the simple rules no longer work. We need to allow specifying the PCIe compatiable string for each individual SoC. We introduce CONFIG_SYS_FSL_PCIE_COMPAT for this purpose and set it if the default isn't sufficient. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* TFTP: add tftpsrv commandLuca Ceresoli2011-05-19-0/+1
| | | | | | Signed-off-by: Luca Ceresoli <luca.ceresoli@comelit.it> Cc: Wolfgang Denk <wd@denx.de> Acked-by: Detlev Zundel <dzu@denx.de>
* README: Clarify difference of CONFIG_WATCHDOG and CONFIG_HW_WATCHDOGDetlev Zundel2011-05-12-5/+12
| | | | | | | | | | | | | | | | | Now that we have the documentation, the code should be changed to reflect it ;) Asd far as I can see, these are the places where HW_WATCHDOG is used instead of WATCHDOG: arch/blackfin/cpu/blackfin/watchdog.c arch/m68k/cpu/mcf547x_8x/cpu.c The relevant maintainers are on CC. Signed-off-by: Detlev Zundel <dzu@denx.de> Cc: Mike Frysinger <vapier@gentoo.org> Cc: TsiChungLiew <Tsi-Chung.Liew@freescale.com>
* README: remove spurious lineLuca Ceresoli2011-05-12-1/+0
| | | | | | Signed-off-by: Luca Ceresoli <luca.ceresoli@comelit.it> Cc: Wolfgang Denk <wd@denx.de> Acked-by: Detlev Zundel <dzu@denx.de>
* Serial: p1011: new vendor init optionsJohn Rigby2011-05-12-0/+12
| | | | | | | | | | | | | | | | | | | | Two new options: CONFIG_PL011_SERIAL_RLCR Some vendor versions of PL011 serial ports (e.g. ST-Ericsson U8500) have separate receive and transmit line control registers. Set this variable to initialize the extra register. CONFIG_PL011_SERIAL_FLUSH_ON_INIT On some platforms (e.g. U8500) U-Boot is loaded by a second stage boot loader that has already initialized the UART. Define this variable to flush the UART at init time. empty fifo on init Signed-off-by: John Rigby <john.rigby@linaro.org> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
* Merge branch 'master' of git://git.denx.de/u-boot-mpc85xxWolfgang Denk2011-04-30-0/+7
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| * powerpc/85xx: Change timebase divisor to be defined per processorKumar Gala2011-04-28-0/+7
| | | | | | | | | | | | | | | | Introduce new CONFIG_SYS_FSL_TBCLK_DIV on 85xx platforms because different SoCs have different divisor amounts. All the PQ3 parts are /8, the P4080/P4080 is /16, and P2040/P3041/P5020 are /32. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | cmd_ide: enhance new feature "CONFIG_IDE_AHB"Macpaul Lin2011-04-30-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | Although most IDE controller is designed to be connected to PCI bridge, there are still some IDE controller support AHB interface for SoC design. The driver implementation of these IDE-AHB controllers differ from other IDE-PCI controller, some additional registers and commands access is required during CMD/DATA I/O. Hence a configuration "CONFIG_IDE_AHB" in cmd_ide.c is required to be defined to support these kinds of SoC controllers. Such as Faraday's FTIDE020 series and Global Unichip's UINF-0301. Signed-off-by: Macpaul Lin <macpaul@andestech.com>
* | powerpc: use 'video-mode' environment variable to configure DIUTimur Tabi2011-04-28-7/+4
|/ | | | | | | | | | | | | | | | Use the 'video-mode' environment variable (for Freescale chips that have a DIU display controller) to designate the full video configuration. Previously, the DIU driver used the 'monitor' variable, and it was used only to determine the output video port. The old definition of the "monitor" environment variable only determines which video port to use for output. This variable was set to a number (0, 1, or sometimes 2) to specify a DVI, LVDS, or Dual-LVDS port. The resolution was hard-coded into board-specific code. The Linux command-line arguments needed to be hard-coded to the proper video definition string. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Anatolij Gustschin <agust@denx.de>
* common: add a grepenv commandKim Phillips2011-04-28-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | u-boot environments, esp. when boards are shared across multiple users, can get pretty large and time consuming to visually parse. The grepenv command this patch adds can be used in lieu of printenv to facilitate searching. grepenv works like printenv but limits its output only to environment strings (variable name and value pairs) that match the user specified substring. the following examples are on a board with a 5313 byte environment that spans multiple screen pages: Example 1: summarize ethernet configuration: => grepenv eth TSEC etact=FM1@DTSEC2 eth=FM1@DTSEC4 ethact=FM1@DTSEC2 eth1addr=00:E0:0C:00:8b:01 eth2addr=00:E0:0C:00:8b:02 eth3addr=00:E0:0C:00:8b:03 eth4addr=00:E0:0C:00:8b:04 eth5addr=00:E0:0C:00:8b:05 eth6addr=00:E0:0C:00:8b:06 eth7addr=00:E0:0C:00:8b:07 eth8addr=00:E0:0C:00:8b:08 eth9addr=00:E0:0C:00:8b:09 ethaddr=00:E0:0C:00:8b:00 netdev=eth0 uprcw=setenv ethact $eth;setenv filename p4080ds/R_PPSXX_0xe/rcw_0xe_2sgmii_rev2_high.bin;setenv start 0xe8000000;protect off all;run upimage;protect on all upuboot=setenv ethact $eth;setenv filename u-boot.bin;setenv start eff80000;protect off all;run upimage;protect on all upucode=setenv ethact $eth;setenv filename fsl_fman_ucode_P4080_101_6.bin;setenv start 0xef000000;protect off all;run upimage;protect on all usdboot=setenv ethact $eth;tftp 1000000 $dir/$bootfile;tftp 2000000 $dir/initramfs.cpio.gz.uboot;tftp c00000 $dir/p4080ds-usdpaa.dtb;setenv bootargs root=/dev/ram rw console=ttyS0,115200 $othbootargs;bootm 1000000 2000000 c00000; => Example 2: detect unused env vars: => grepenv etact etact=FM1@DTSEC2 => Example 3: reveal hardcoded variables; e.g., for fdtaddr: => grepenv fdtaddr fdtaddr=c00000 nfsboot=setenv bootargs root=/dev/nfs rw nfsroot=$serverip:$rootpath ip=$ipaddr:$serverip:$gatewayip:$netmask:$hostname:$netdev:off console=$consoledev,$baudrate $othbootargs;tftp $loadaddr $bootfile;tftp $fdtaddr $fdtfile;bootm $loadaddr - $fdtaddr ramboot=setenv bootargs root=/dev/ram rw console=$consoledev,$baudrate $othbootargs;tftp $ramdiskaddr $ramdiskfile;tftp $loadaddr $bootfile;tftp $fdtaddr $fdtfile;bootm $loadaddr $ramdiskaddr $fdtaddr => grep $fdtaddr fdtaddr=c00000 my_boot=bootm 0x40000000 0x41000000 0x00c00000 my_dtb=tftp 0x00c00000 $prefix/p4080ds.dtb nohvboot=tftp 1000000 $dir/$bootfile;tftp 2000000 $dir/$ramdiskfile;tftp c00000 $dir/$fdtfile;setenv bootargs root=/dev/ram rw ramdisk_size=0x10000000 console=ttyS0,115200;bootm 1000000 2000000 c00000; => This patch also enables the grepenv command by default on corenet_ds based boards (and repositions the DHCP command entry to keep the list sorted). Signed-off-by: Kim Phillips <kim.phillips@freescale.com> Cc: Kumar Gala <kumar.gala@freescale.com> Cc: Andy Fleming <afleming@freescale.com>
* Merge branch 'master' of git://git.denx.de/u-boot-armWolfgang Denk2011-04-27-0/+20
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| * Don't grab memory for LCD if FB address is definedMinkyu Kang2011-04-27-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | If FB address is defined specific address then don't grab memory for LCD Signed-off-by: Minkyu Kang <mk7.kang@samsung.com> Cc: Albert Aribaud <albert.aribaud@free.fr> Cc: Wolfgang Denk <wd@denx.de> Cc: Stefan Roese <sr@denx.de> Cc: Kim Phillips <kim.phillips@freescale.com> Cc: Andy Fleming <afleming@gmail.com> Cc: Kumar Gala <kumar.gala@freescale.com>
| * arm: Use optimized memcpy and memset from linuxMatthias Weisser2011-04-27-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Using optimized versions of memset and memcpy from linux brings a quite noticeable speed (x2 or better) improvement for these two functions. Here are some numbers for test done with jadecpu | HEAD(1)| HEAD(1)| HEAD(2)| HEAD(2)| | | +patch | | +patch | ---------------------------+--------+--------+--------+--------+ Reset to prompt | 438ms | 330ms | 228ms | 120ms | | | | | | TFTP a 3MB img | 4782ms | 3428ms | 3245ms | 2820ms | | | | | | FATLOAD USB a 3MB img* | 8515ms | 8510ms | ------ | ------ | | | | | | BOOTM LZO img in RAM | 3473ms | 3168ms | 592ms | 592ms | where CRC is | 615ms | 615ms | 54ms | 54ms | uncompress | 2460ms | 2462ms | 450ms | 451ms | final boot_elf | 376ms | 68ms | 65ms | 65ms | | | | | | BOOTM LZO img in FLASH | 3207ms | 2902ms | 1050ms | 1050ms | where CRC is | 600ms | 600ms | 135ms | 135ms | uncompress | 2209ms | 2211ms | 828ms | 828ms | | | | | | Copy 1.4MB from NOR to RAM | 134ms | 72ms | 120ms | 70ms | (1) No dcache (2) dcache enabled in board_init *Does not work when dcache is on Size impact: C version: text data bss dec hex filename 202862 18912 266456 488230 77326 u-boot ASM version: text data bss dec hex filename 203798 18912 266288 488998 77626 u-boot 222712 u-boot.bin Signed-off-by: Matthias Weisser <weisserm@arcor.de>
* | Default to bootm_size() when CONFIG_SYS_BOOTMAPSZ is not definedGrant Likely2011-04-25-2/+14
|/ | | | | | | | | | | | | This patch adds a function getenv_bootm_mapsize() for obtaining the size of the early mapped region accessible by the kernel during early boot. It defaults to CONFIG_SYS_BOOTMAPSZ, or if not defined, defaults to getenv_bootm_size(), which in turn defaults to the size of RAM. getenv_bootm_mapsize() can also be overridden with a "bootm_mapsize" environmental variable. Signed-off-by: Grant Likely <grant.likely@linaro.org>
* rtc, rv3029: add trickle charger support.Heiko Schocher2011-04-26-0/+2
| | | | | Signed-off-by: Heiko Schocher <hs@denx.de> Acked-by: Detlev Zundel <dzu@denx.de>
* Merge branch 'misc' of git://git.denx.de/u-boot-blackfinWolfgang Denk2011-04-20-0/+4
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| * crc32: make command optionalMike Frysinger2011-04-13-0/+1
| | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * make `go` optionalMike Frysinger2011-04-13-0/+1
| | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
| * env: make import/export optionalMike Frysinger2011-04-13-0/+2
| | | | | | | | Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* | x86: Rename i386 to x86Graeme Russ2011-04-13-1/+1
|/ | | | Signed-off-by: Graeme Russ <graeme.russ@gmail.com>
* Make STANDALONE_LOAD_ADDR configurable per boardWolfgang Denk2011-04-12-0/+8
| | | | | | | | | | | | | Rename STANDALONE_LOAD_ADDR into CONFIG_STANDALONE_LOAD_ADDR and allow that the architecture-specific default value gets overwritten by defining the value in the board header file. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Mike Frysinger <vapier@gentoo.org> Cc: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp> Cc: Daniel Hellstrom <daniel@gaisler.com> Cc: Tsi Chung Liew <tsi-chung.liew@freescale.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* Blackfin: ldrinfo: new commandMike Frysinger2011-04-08-0/+1
| | | | | | Simple command to decode/check an LDR image before we try to boot it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* powerpc: clean up DIU macro definitions for Freescale reference boardsTimur Tabi2011-04-04-0/+22
| | | | | | | | | | | | Clean up the macro defintions used to enable DIU (video) support on the MPC8610HPCD and the MPC5121ADS so that they look more like the P1022DS, which is newer. Add software cursor support to all three boards. Also document the CONFIG_FSL_DIU_FB in the README. Signed-off-by: Timur Tabi <timur@freescale.com> Acked-by: Anatolij Gustschin <agust@denx.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* mv: seperate kirkwood and armada from common settingLei Wen2011-02-21-0/+5
| | | | | | | | | | | | | Since there are lots of difference between kirkwood and armada series, it is better to seperate them but still keep the most common file shared by all marvell platform in the mv-common configure file. This patch move the kirkwood only driver definitoin in mv-common to the <soc_name>/config.h. This patch is tested with compilation for armada100 and guruplug. Signed-off-by: Lei Wen <leiwen@marvell.com>
* spi: add support SuperH SPI moduleYoshihiro Shimoda2011-02-02-0/+5
| | | | | | | SH7757 has SPI module. This patch supports it. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* net: sh_eth: add cache handlingYoshihiro Shimoda2011-02-02-0/+3
| | | | | | | | Some CPU needs cache handling. So this patch add the config of CONFIG_SH_ETHER_CACHE_WRITEBACK, and it calls wback function. Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* README: add description of sh_eth driverYoshihiro Shimoda2011-02-02-0/+9
| | | | | Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
* Fix defines needed to enable command sha1sumAlexander Holler2011-01-19-1/+1
| | | | | | | | | | | Documented is CONFIG_CMD_SHA1, through confusion in the source CONFIG_CMD_SHA1 and CONFIG_CMD_SHA1SUM has to be used to enable sha1sum. Fix both, the documentation and the source, so that only CONFIG_CMD_SHA1SUM is needed to enable the command sha1sum. Signed-off-by: Alexander Holler <holler@ahsoftware.de>
* Merge branch 'master' of git://git.denx.de/u-boot-mpc85xxWolfgang Denk2011-01-17-0/+18
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| * powerpc/8xxx: Refactor SRIO initialization into common codeKumar Gala2011-01-14-0/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Moved the SRIO init out of corenet_ds and into common code for 8xxx/QorIQ processors that have SRIO. We mimic what we do with PCIe controllers for SRIO. We utilize the fact that SRIO is over serdes to determine if its configured or not and thus can setup the LAWs needed for it dynamically. We additionally update the device tree (to remove the SRIO nodes) if the board doesn't have SRIO enabled. Introduced the following standard defines for board config.h: CONFIG_SYS_SRIO - Chip has SRIO or not CONFIG_SRIO1 - Board has SRIO 1 port available CONFIG_SRIO2 - Board has SRIO 2 port available (where 'n' is the port #) CONFIG_SYS_SRIOn_MEM_VIRT - virtual address in u-boot CONFIG_SYS_SRIOn_MEM_PHYS - physical address (for law setup) CONFIG_SYS_SRIOn_MEM_SIZE - size of window (for law setup) [ These mimic what we have for PCI and PCIe controllers ] Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Wolfgang Denk <wd@denx.de>
* | Merge branch 'master' of git://git.denx.de/u-boot-i2cWolfgang Denk2011-01-17-0/+4
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| * pca953x: support 16-pin devicesChris Packham2011-01-10-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds support for for the PCA9535/PCA9539 family of gpio devices which have 16 output pins. To let the driver know which devices are 16-pin it is necessary to define CONFIG_SYS_I2C_PCA953X_WIDTH in your board config file. This is used to create an array of {chip, ngpio} tuples that are used to determine the width of a particular chip. For backwards compatibility it is assumed that any chip not defined in CONFIG_SYS_I2C_PCA953X_WIDTH has 8 pins. Acked-by: Peter Tyser <ptyser@xes-inc.com> Tested-by: Peter Tyser <ptyser@xes-inc.com> Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
* | ftgmac100: support of gigabit eth ftgmac100Macpaul Lin2011-01-09-0/+12
|/ | | | | | | Add Faraday's ftgmac100 (gigabit ethernet) MAC controller's driver. Signed-off-by: Macpaul Lin <macpaul@andestech.com>
* Coding Style (white space) cleanupWolfgang Denk2010-11-27-9/+9
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* Drop support for CONFIG_SKIP_RELOCATE_UBOOTWolfgang Denk2010-10-29-10/+8
| | | | | | | | | | | | | | | | For ARM systems, before ELF relocation was introduced, CONFIG_SKIP_RELOCATE_UBOOT coul be used to prevent *COPYING* the U-Boot image from whereever it was loaded to it's link address (CONFIG_SYS_TEXT_BASE). The name was badly chosen, as no relocation was performed at all, it was just a memcpy(). With ELF relocation, this does not work like that any more, and related boards need to be fixed anyway. So don't keep this relict any longer. Signed-off-by: Wolfgang Denk <wd@denx.de> Tested-by: Heiko Schocher <hs@denx.de> Tested-by: Reinhard Meyer <u-boot@emk-elektronik.de>
* Coding Style cleanupWolfgang Denk2010-10-27-5/+5
| | | | Signed-off-by: Wolfgang Denk <wd@denx.de>
* Rename CONFIG_SYS_INIT_RAM_END into CONFIG_SYS_INIT_RAM_SIZEWolfgang Denk2010-10-26-1/+1
| | | | | | | | | | | | | | | | | | CONFIG_SYS_INIT_RAM_END was a misnomer as it suggests this might be some end address; to make the meaning more clear we rename it into CONFIG_SYS_INIT_RAM_SIZE No other code changes are performed in this patch, only minor editing of white space (due to the changed length) and the comments was done, where noticed. Note that the code for the PATI and cmi_mpc5xx board configurations looks seriously broken. Last known maintainers on Cc: Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Denis Peter <d.peter@mpl.ch> Cc: Martin Winistoerfer <martinwinistoerfer@gmx.ch> Acked-by: Kumar Gala <galak@kernel.crashing.org>
* boot: change some arch ifdefs to feature ifdefsJohn Rigby2010-10-18-0/+13
| | | | | | | | | | | | | | | | | The routines boot_ramdisk_high, boot_get_cmdline and boot_get_kbd are currently enabled by various combinations of CONFIG_M68K, CONFIG_POWERPC and CONFIG_SPARC. Use CONFIG_SYS_BOOT_<FEATURE> defines instead. CONFIG_SYS_BOOT_RAMDISK_HIGH CONFIG_SYS_BOOT_GET_CMDLINE CONFIG_SYS_BOOT_GET_KBD Define these as appropriate in arch/include/asm/config.h files. Signed-off-by: John Rigby <john.rigby@linaro.org> Acked-by: Wolfgang Denk <wd@denx.de>
* Rename TEXT_BASE into CONFIG_SYS_TEXT_BASEWolfgang Denk2010-10-18-1/+1
| | | | | | | | | | | | The change is currently needed to be able to remove the board configuration scripting from the top level Makefile and replace it by a simple, table driven script. Moving this configuration setting into the "CONFIG_*" name space is also desirable because it is needed if we ever should move forward to a Kconfig driven configuration system. Signed-off-by: Wolfgang Denk <wd@denx.de>
* README: Add new NAND env featuresScott Wood2010-10-11-9/+23
| | | | | | | | CONFIG_ENV_SIZE does not need block alignment. Document CONFIG_ENV_RANGE and CONFIG_ENV_OFFSET_OOB. Signed-off-by: Scott Wood <scottwood@freescale.com>
* PCU_E: remove code for yet another corpseWolfgang Denk2010-10-06-1/+1
| | | | | | | The PCU_E board has long reached EOL, and support for it is no longer relevant in current versions of U-Boot. Remove it. Signed-off-by: Wolfgang Denk <wd@denx.de>
* Merge branch 'next' of /home/wd/git/u-boot/nextWolfgang Denk2010-09-28-19/+8
|\ | | | | | | | | | | | | Conflicts: include/ppc4xx.h Signed-off-by: Wolfgang Denk <wd@denx.de>
| * Remove unused CONFIG_SERIAL_SOFTWARE_FIFO featureStefan Roese2010-09-23-12/+0
| | | | | | | | | | | | | | | | | | This patch removes the completely unused CONFIG_SERIAL_SOFTWARE_FIFO feature from U-Boot. It has only been implemented for PPC4xx and was not used at all. So let's remove it and make the code smaller and cleaner. Signed-off-by: Stefan Roese <sr@denx.de> Acked-by: Detlev Zundel <dzu@denx.de>
| * ppc4xx: Remove now unused CONFIG_UART1_CONSOLEStefan Roese2010-09-23-7/+0
| | | | | | | | | | | | | | | | CONFIG_UART1_CONSOLE was a PPC4xx specific implementation and is now removed since the move from the 4xx UART driver to the common NS16550 UART driver. Let's remove all references to this define now. Signed-off-by: Stefan Roese <sr@denx.de>
| * New implementation for internal handling of environment variables.Wolfgang Denk2010-09-19-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Motivation: * Old environment code used a pessimizing implementation: - variable lookup used linear search => slow - changed/added variables were added at the end, i. e. most frequently used variables had the slowest access times => slow - each setenv() would calculate the CRC32 checksum over the whole environment block => slow * "redundant" envrionment was locked down to two copies * No easy way to implement features like "reset to factory defaults", or to select one out of several pre-defined (previously saved) sets of environment settings ("profiles") * No easy way to import or export environment settings ====================================================================== API Changes: - Variable names starting with '#' are no longer allowed I didn't find any such variable names being used; it is highly recommended to follow standard conventions and start variable names with an alphanumeric character - "printenv" will now print a backslash at the end of all but the last lines of a multi-line variable value. Multi-line variables have never been formally defined, allthough there is no reason not to use them. Now we define rules how to deal with them, allowing for import and export. - Function forceenv() and the related code in saveenv() was removed. At the moment this is causing build problems for the only user of this code (schmoogie - which has no entry in MAINTAINERS); may be fixed later by implementing the "env set -f" feature. Inconsistencies: - "printenv" will '\\'-escape the '\n' in multi-line variables, while "printenv var" will not do that. ====================================================================== Advantages: - "printenv" output much better readable (sorted) - faster! - extendable (additional variable properties can be added) - new, powerful features like "factory reset" or easy switching between several different environment settings ("profiles") Disadvantages: - Image size grows by typically 5...7 KiB (might shrink a bit again on systems with redundant environment with a following patch series) ====================================================================== Implemented: - env command with subcommands: - env print [arg ...] same as "printenv": print environment - env set [-f] name [arg ...] same as "setenv": set (and delete) environment variables ["-f" - force setting even for read-only variables - not implemented yet.] - end delete [-f] name not implemented yet ["-f" - force delete even for read-only variables] - env save same as "saveenv": save environment - env export [-t | -b | -c] addr [size] export internal representation (hash table) in formats usable for persistent storage or processing: -t: export as text format; if size is given, data will be padded with '\0' bytes; if not, one terminating '\0' will be added (which is included in the "filesize" setting so you can for exmple copy this to flash and keep the termination). -b: export as binary format (name=value pairs separated by '\0', list end marked by double "\0\0") -c: export as checksum protected environment format as used for example by "saveenv" command addr: memory address where environment gets stored size: size of output buffer With "-c" and size is NOT given, then the export command will format the data as currently used for the persistent storage, i. e. it will use CONFIG_ENV_SECT_SIZE as output block size and prepend a valid CRC32 checksum and, in case of resundant environment, a "current" redundancy flag. If size is given, this value will be used instead of CONFIG_ENV_SECT_SIZE; again, CRC32 checksum and redundancy flag will be inserted. With "-b" and "-t", always only the real data (including a terminating '\0' byte) will be written; here the optional size argument will be used to make sure not to overflow the user provided buffer; the command will abort if the size is not sufficient. Any remainign space will be '\0' padded. On successful return, the variable "filesize" will be set. Note that filesize includes the trailing/terminating '\0' byte(s). Usage szenario: create a text snapshot/backup of the current settings: => env export -t 100000 => era ${backup_addr} +${filesize} => cp.b 100000 ${backup_addr} ${filesize} Re-import this snapshot, deleting all other settings: => env import -d -t ${backup_addr} - env import [-d] [-t | -b | -c] addr [size] import external format (text or binary) into hash table, optionally deleting existing values: -d: delete existing environment before importing; otherwise overwrite / append to existion definitions -t: assume text format; either "size" must be given or the text data must be '\0' terminated -b: assume binary format ('\0' separated, "\0\0" terminated) -c: assume checksum protected environment format addr: memory address to read from size: length of input data; if missing, proper '\0' termination is mandatory - env default -f reset default environment: drop all environment settings and load default environment - env ask name [message] [size] same as "askenv": ask for environment variable - env edit name same as "editenv": edit environment variable - env run same as "run": run commands in an environment variable ====================================================================== TODO: - drop default env as implemented now; provide a text file based initialization instead (eventually using several text files to incrementally build it from common blocks) and a tool to convert it into a binary blob / object file. - It would be nice if we could add wildcard support for environment variables; this is needed for variable name auto-completion, but it would also be nice to be able to say "printenv ip*" or "printenv *addr*" - Some boards don't link any more due to the grown code size: DU405, canyonlands, sequoia, socrates. => cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>, Stefan Roese <sr@denx.de>, Heiko Schocher <hs@denx.de> - Dropping forceenv() causes build problems on schmoogie => cc: Sergey Kubushyn <ksi@koi8.net> - Build tested on PPC and ARM only; runtime tested with NOR and NAND flash only => needs testing!! Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Matthias Fuchs <matthias.fuchs@esd-electronics.com>, Cc: Stefan Roese <sr@denx.de>, Cc: Heiko Schocher <hs@denx.de> Cc: Sergey Kubushyn <ksi@koi8.net>
* | README: Fix description of version numbering schemeThomas Weber2010-09-28-7/+11
|/ | | | | | | | | | | | The version numbering scheme was changed in Oct, 2008. This patch brings the documentation to the actual level. The description is taken from: http://www.denx.de/wiki/U-Boot/ReleaseCycle Signed-off-by: Thomas Weber <weber@corscience.de> Changed text slightly. Signed-off-by: Wolfgang Denk <wd@denx.de>
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