Alison Wang 0454e0c420 arm: vf610: Add Vybrid VF610 to mxc_ocotp document 11 years ago
..
DocBook e3ff797cdb cbfs: Add docbook template 11 years ago
SPL 427ac8cca3 doc/SPL/README.am335x-network: Document using ethernet (and USB) SPL 11 years ago
device-tree-bindings 71e6ba4655 EXYNOS5: Add device node for DP 11 years ago
driver-model e53232250b arm: Remove support for unused s3c64xx 11 years ago
uImage.FIT 48690d8024 net ppc: fix ethernet device names with spaces 14 years ago
I2C_Edge_Conditions 6d0f6bcf33 rename CFG_ macros to CONFIG_SYS 15 years ago
README.440-DDR-performance a2c95a7224 PPC440 DDR setup: Set SDRAM0_CFG0[PMU]=0 for best performance 18 years ago
README.AMCC-eval-boards-cleanup 8a316c9b62 Major cleanup for AMCC PPC4xx eval boards. 19 years ago
README.ARM-SoC 84ad688473 arm: Move cpu/$CPU to arch/arm/cpu/$CPU 14 years ago
README.ARM-memory-map 14d0a02a16 Rename TEXT_BASE into CONFIG_SYS_TEXT_BASE 13 years ago
README.AVR32 66b7bc5175 avr32: Update README 15 years ago
README.AVR32-port-muxing c46bf09e0b doc: Fix some typos in different files 12 years ago
README.JFFS2 6d0f6bcf33 rename CFG_ macros to CONFIG_SYS 15 years ago
README.JFFS2_NAND 445093d175 Fix "par[t]ition" typo. 14 years ago
README.LED ea0364f1bb Move lib_$ARCH directories to arch/$ARCH/lib 14 years ago
README.LED_display e03e4b7312 led_display: remove unused DISPLAY_MARK define 13 years ago
README.MPC866 6d0f6bcf33 rename CFG_ macros to CONFIG_SYS 15 years ago
README.Modem 8bde7f776c * Code cleanup: 21 years ago
README.N1213 afc1ce8288 doc/README: documents and readme for NDS32 arch 12 years ago
README.NDS32 afc1ce8288 doc/README: documents and readme for NDS32 arch 12 years ago
README.NetConsole 2c8fe5120f net: Make the netconsole buffer size configurable 11 years ago
README.OFT f013dacf0a Code cleanup, especially MIPS for GCC 4.x 18 years ago
README.POST 9d921f19b3 post/i2c: Add ability to ignore I2C devices 13 years ago
README.SNTP c46bf09e0b doc: Fix some typos in different files 12 years ago
README.SPL c57b953da9 SPL: Add support for loading image from ram in SPL. 11 years ago
README.VLAN a3d991bd0d Patches by Pantelis Antoniou, 30 Mar 2004: 20 years ago
README.VSC3316-3308 aa42cb71fa board/freescale/common: VSC3316/VSC3308 initialization code 11 years ago
README.ag102 b9725ae3f3 board/adp-ag102: add configuration of adp-ag102 12 years ago
README.arm-caches 46a6d51c82 cache: add ALLOC_CACHE_ALIGN_BUFFER macro 12 years ago
README.arm-relocation da962b7175 nand: mxc: Switch NAND SPL to generic SPL 11 years ago
README.arm-unaligned-accesses b823fd9ba5 ARM: prevent misaligned array inits 11 years ago
README.at91 c46bf09e0b doc: Fix some typos in different files 12 years ago
README.at91-soc 04e5ae7931 Minor coding style cleanup. 12 years ago
README.atmel_mci c9abb4260c ATMEL: remove old atmel_mci driver 12 years ago
README.atmel_pmecc bdfd59aa0f at91: atmel_nand: Update driver to support Programmable Multibit ECC controller 11 years ago
README.autoboot f2302d4430 Fix merge problems 16 years ago
README.b4860qds b5b06fb7b0 powerpc/b4860qds: Added Support for B4860QDS 11 years ago
README.bedbug a47a12becf Move arch/ppc to arch/powerpc 14 years ago
README.bitbangMII 4946775c6d Coding Style cleanup; update CHANGELOG, prepare -rc1 14 years ago
README.blackfin 4c58eb5552 add some more Blackfin docs 16 years ago
README.bootmenu e7abe91967 New command bootmenu: ANSI terminal boot menu support 11 years ago
README.bus_vcxk 10c7604d02 Prepare 2009.08-rc1 15 years ago
README.cfi 466f0137e8 mpc5200, digsy_mtc: add support for rev5 board version 13 years ago
README.commands ef123c5253 Refactor linker-generated arrays 11 years ago
README.commands.itest cd0a9de68b * Patch by Laurent Mohin, 10 Feb 2004: 20 years ago
README.commands.spl 1648a37505 Add cmd_spl command 12 years ago
README.console 7de17781a4 doc: provide a correct board_init_r definition path 12 years ago
README.davinci 3d2c8e6c7f arm, da850evm: Add an SPL for SPI boot 12 years ago
README.davinci.nand_spl 4dd834906d arm, davinci: add cam_enc_4xx support 12 years ago
README.designware_eth 5b1b1883ff SPEAr : Network driver support added 14 years ago
README.displaying-bmps c088048533 lcd: implement a callback for splashimage 11 years ago
README.dns 28958b8bea Coding Style cleanup; update CHANGELOG. 15 years ago
README.drivers.eth ecee9324d7 Program net device MAC addresses after initializing 14 years ago
README.enetaddr c88ef3c12d net: allow setting env enetaddr from net device setting 12 years ago
README.ext4 03e2ecf6b8 fs: separate CONFIG_FS_{FAT, EXT4} from CONFIG_CMD_{FAT, EXT*} 11 years ago
README.falcon 3e1b393976 Add README for the "Falcon" mode 11 years ago
README.fdt-control f828bf25fe sandbox: Add CONFIG_OF_HOSTFILE to read FDT from host file 11 years ago
README.fec_mxc c30eab2ddd doc/README.fec_mxc: add documentation 11 years ago
README.fsl-ddr 02a9ce7187 README.fsl-ddr typos and update to reflect hotkey 11 years ago
README.fsl-hwconfig 636c316f9b powerpc/85xx: Specify hwconfig usage for USB controller 13 years ago
README.fsl_iim 0f67e09e9e Add fsl_iim driver 11 years ago
README.fuse ccca7dfd02 Add fuse API and commands 11 years ago
README.generic_usb_ohci 6d0f6bcf33 rename CFG_ macros to CONFIG_SYS 15 years ago
README.gpt 36f2e8e0d1 gpt:doc: GPT (GUID Partition Table) documentation 11 years ago
README.hwconfig ab68f4dd19 doc: add README for CONFIG_HWCONFIG option 14 years ago
README.idma2intr 3e38691e8f * Patch by Arun Dharankar, 4 Apr 2003: 21 years ago
README.imx25 eec3f0242d imx: Document fuse assignments for MAC addresses 11 years ago
README.imx27 eec3f0242d imx: Document fuse assignments for MAC addresses 11 years ago
README.imx31 77a0355f60 move README.imx31 to doc/ and merge with README.mx31 15 years ago
README.imx5 eec3f0242d imx: Document fuse assignments for MAC addresses 11 years ago
README.imx6 eec3f0242d imx: Document fuse assignments for MAC addresses 11 years ago
README.imximage 6cb83829a0 tools: arm: imx: Implement BOOT_OFFSET command for imximage 11 years ago
README.iomux 16a28ef219 IOMUX: Add console multiplexing support. 15 years ago
README.kwbimage 1ff1f89c57 cosmetic: Better explain how to use the kirkwood kwbimage.cfg file. 11 years ago
README.link-local 3fe63839f3 Minor Coding Style cleanup 12 years ago
README.lynxkdi 6d0f6bcf33 rename CFG_ macros to CONFIG_SYS 15 years ago
README.m28 3a0398d7b9 mxs: reorganize source directory for easy sharing of code in i.MXS SoCs 11 years ago
README.m54418twr 186fc4db26 ColdFire: Add Freescale MCF54418TWR ColdFire development board support 11 years ago
README.m68k 1626308797 cleanup: Fix typos and misspellings in various files. 13 years ago
README.marubun-pcmcia 6d0f6bcf33 rename CFG_ macros to CONFIG_SYS 15 years ago
README.memory-test a2681707b2 Feature Removal: disable "mtest" command by default 11 years ago
README.menu 6a3439fdad menu: export menu_default_choice() function 11 years ago
README.mini2440 b77026225a ARM : Add support for MINI2440 (s3c2440). 11 years ago
README.mips 54b08efcf2 README.mips: update known issues and TODOs 11 years ago
README.mpc5xx a47a12becf Move arch/ppc to arch/powerpc 14 years ago
README.mpc74xx e221174377 Initial revision 21 years ago
README.mpc83xx.ddrecc 47e8bc8467 mpc83xx: Correct the README for DDR ECC 17 years ago
README.mpc83xxads f901a83b70 Add support for ep8248 board 19 years ago
README.mpc85xx c97cd1ba48 spl/85xx: new SPL support 11 years ago
README.mpc85xx-spin-table ffd06e0231 powerpc/mpc85xx: Rewrite spin table to comply with ePAPR v1.1 11 years ago
README.mpc85xxads c46bf09e0b doc: Fix some typos in different files 12 years ago
README.mpc85xxcds d9b94f28a4 * Patch by Jon Loeliger, 2005-05-05 19 years ago
README.mx28_common 9de1c22f80 mx28: Fix elftosb source link in README.mx28_common 12 years ago
README.mx28evk ab461be65d mx28evk: Introduce a new target for saving env vars to NAND 11 years ago
README.mxc_ocotp 0454e0c420 arm: vf610: Add Vybrid VF610 to mxc_ocotp document 11 years ago
README.nand 3287f6d385 nand: Add torture feature 11 years ago
README.nand-boot-ppc440 8fbc985bda Fix some typos 16 years ago
README.ne2000 8ed9604613 * Patches by Richard Woodruff, 01 Oct 2004: 19 years ago
README.nokia_rx51 ed407be53e New board support: Nokia RX-51 aka N900 11 years ago
README.omap-reset-time 0b1b60c779 ARM: OMAP5: Fix warm reset with USB cable connected 11 years ago
README.omap-ulpi-viewport 928c4bdf9b usb: ulpi: Add omap-ulpi-view port support 12 years ago
README.omap3 4a0930069b omap_gpmc: add support for hw assisted BCH8 11 years ago
README.p1010rdb 06c1179637 powerpc/p1010rdb: add readme document for p1010rdb 11 years ago
README.pblimage 5d898a00f3 powerpc/CoreNet: add tool to support pbl image build. 11 years ago
README.ppc440 24956642ef Remove unused CONFIG_SERIAL_SOFTWARE_FIFO feature 13 years ago
README.pxe a655938a93 PXE: FDT: Add support for fdt in PXE 11 years ago
README.qemu-mips 3ed75b6f74 README.qemu-mips: move README file from board to doc directory 11 years ago
README.ramboot-ppc85xx 56376c4288 doc/ramboot.mpc85xx: Documented the RAMBOOT for MPC85xx 11 years ago
README.rmobile 5977503a81 rmobile: Add README 11 years ago
README.s5pc1xx abbe18c353 s5pc1xx: update the README file 14 years ago
README.sata e8f7ba404f doc: english polishing for README.sata 16 years ago
README.sched 3e38691e8f * Patch by Arun Dharankar, 4 Apr 2003: 21 years ago
README.scrapyard 52587f1ef8 arm: Remove support for smdk6400 11 years ago
README.serial_multi 6d0f6bcf33 rename CFG_ macros to CONFIG_SYS 15 years ago
README.sh c133c1fb0b sh: Add support Renesas Solutions R7780MP 16 years ago
README.sh7752evb 1a2621bab8 sh: add support for sh7752evb board 11 years ago
README.sha1 6d0f6bcf33 rename CFG_ macros to CONFIG_SYS 15 years ago
README.silent be2e5a09e6 Allow u-boot to be silent without forcing Linux to be 11 years ago
README.spear f273e5b2a6 SPEAr: Add configuration options for spear3xx and spear6xx boards 12 years ago
README.srio-pcie-boot-corenet fc54c7fa0a powerpc/corenet_ds: Update README and README.srio-pcie-boot-corenet 11 years ago
README.standalone afc1ce8288 doc/README: documents and readme for NDS32 arch 12 years ago
README.switch_config 14b9f16c40 arm,davinci: update for enbw_cmc board 12 years ago
README.t4240qds ee52b188ca powerpc/t4qds: Add T4QDS board 11 years ago
README.ubi ae8082c7e0 Add UBI README 13 years ago
README.ublimage 04e5ae7931 Minor coding style cleanup. 12 years ago
README.update 7130a579fd add command fitupd to run an update from a FIT image 13 years ago
README.usb c5a927c61f usb documentation: fix typo 11 years ago
README.vf610 24e8bee508 arm: vf610: Add Vybrid VF610 CPU support 11 years ago
README.video a5dbdc81ea video: parse the video-mode environment variable 13 years ago
README.watchdog 0f21f98dd4 watchdog: Add support for Xilinx Microblaze watchdog 11 years ago
README.zfs 4d3c95f5ea zfs: Add ZFS filesystem support 11 years ago
feature-removal-schedule.txt fc180c743d feature-removal-schedule.txt: Add CONFIG_SYS_MTEST_START/END 11 years ago
git-mailrc 19fe4b3e31 git-mailrc: Add trini shortcut 11 years ago
kwboot.1 3fdf7596df Change e-mail address of Luka Perkov 11 years ago
mkimage.1 49fbf4371e doc/mkimage.1: Fix -D/-f options formatting 12 years ago

README.440-DDR-performance

AMCC suggested to set the PMU bit to 0 for best performace on the
PPC440 DDR controller. The 440er common DDR setup files (sdram.c &
spd_sdram.c) are changed accordingly. So all 440er boards using
these setup routines will automatically receive this performance
increase.

Please see below some benchmarks done by AMCC to demonstrate this
performance changes:


----------------------------------------
SDRAM0_CFG0[PMU] = 1 (U-boot default for Bamboo, Yosemite and Yellowstone)
----------------------------------------
Stream benchmark results
-------------------------------------------------------------
This system uses 8 bytes per DOUBLE PRECISION word.
-------------------------------------------------------------
Array size = 2000000, Offset = 0
Total memory required = 45.8 MB.
Each test is run 10 times, but only
the *best* time for each is used.
-------------------------------------------------------------
Your clock granularity/precision appears to be 1 microseconds.
Each test below will take on the order of 112345 microseconds.
(= 112345 clock ticks)
Increase the size of the arrays if this shows that you are not getting
at least 20 clock ticks per test.
-------------------------------------------------------------
WARNING -- The above is only a rough guideline.
For best results, please be sure you know the precision of your system
timer.
-------------------------------------------------------------
Function Rate (MB/s) RMS time Min time Max time
Copy: 256.7683 0.1248 0.1246 0.1250
Scale: 246.0157 0.1302 0.1301 0.1302
Add: 255.0316 0.1883 0.1882 0.1885
Triad: 253.1245 0.1897 0.1896 0.1899


TTCP Benchmark Results
ttcp-t: socket
ttcp-t: connect
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5000 tcp ->
localhost
ttcp-t: 16777216 bytes in 0.28 real seconds = 454.29 Mbit/sec +++
ttcp-t: 2048 I/O calls, msec/call = 0.14, calls/sec = 7268.57
ttcp-t: 0.0user 0.1sys 0:00real 60% 0i+0d 0maxrss 0+2pf 3+1506csw

----------------------------------------
SDRAM0_CFG0[PMU] = 0 (Suggested modification)
Setting PMU = 0 provides a noticeable performance improvement *2% to
5% improvement in memory performance.
*Improves the Mbit/sec for TTCP benchmark by almost 76%.
----------------------------------------
Stream benchmark results
-------------------------------------------------------------
This system uses 8 bytes per DOUBLE PRECISION word.
-------------------------------------------------------------
Array size = 2000000, Offset = 0
Total memory required = 45.8 MB.
Each test is run 10 times, but only
the *best* time for each is used.
-------------------------------------------------------------
Your clock granularity/precision appears to be 1 microseconds.
Each test below will take on the order of 120066 microseconds.
(= 120066 clock ticks)
Increase the size of the arrays if this shows that you are not getting
at least 20 clock ticks per test.
-------------------------------------------------------------
WARNING -- The above is only a rough guideline.
For best results, please be sure you know the precision of your system
timer.
-------------------------------------------------------------
Function Rate (MB/s) RMS time Min time Max time
Copy: 262.5167 0.1221 0.1219 0.1223
Scale: 258.4856 0.1238 0.1238 0.1240
Add: 262.5404 0.1829 0.1828 0.1831
Triad: 266.8594 0.1800 0.1799 0.1802

TTCP Benchmark Results
ttcp-t: socket
ttcp-t: connect
ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5000 tcp ->
localhost
ttcp-t: 16777216 bytes in 0.16 real seconds = 804.06 Mbit/sec +++
ttcp-t: 2048 I/O calls, msec/call = 0.08, calls/sec = 12864.89
ttcp-t: 0.0user 0.0sys 0:00real 46% 0i+0d 0maxrss 0+2pf 120+1csw


2006-07-28, Stefan Roese