Łukasz Majewski ccfc89cb16 doc:power:pmic: Add doc entry for PMIC(v2) framework 10 years ago
..
DocBook 7424145f30 kbuild: consolidate version and timestamp headers generation 10 years ago
SPI 9ea09e2037 doc: SPI: Add qspi test details on AM43xx 10 years ago
SPL b1e6c4c3d4 Fix references to the documentation files 11 years ago
device-tree-bindings ab6423cae0 Merge branch 'u-boot/master' into 'u-boot-arm/master' 10 years ago
driver-model f9aa6a1086 dm: Remove old driver model documentation 10 years ago
uImage.FIT 29a23f9d6c tools, fit_check_sign: verify a signed fit image 10 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.ARC bde237368a arc: add README for architecture 10 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 0ff5d14662 doc: Fix a typo in the description in doc/README.JFFS2_NAND 10 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 4379ac6148 kbuild: rename TOPDIR to stctree 10 years ago
README.TPL 4379ac6148 kbuild: rename TOPDIR to stctree 10 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.arm64 0ae7653128 arm64: core support 10 years ago
README.at91 5ba444f092 ARM: at91: add NAND partition table and index 11 years ago
README.at91-soc 58fd563ffb at91: remove all occourances of CONFIG_AT91_LEGACY 10 years ago
README.atmel_mci c9abb4260c ATMEL: remove old atmel_mci driver 12 years ago
README.atmel_pmecc d4c8aa9cb4 Coding Style cleanup: remove trailing empty lines 10 years ago
README.autoboot 00ddacc1a1 autoboot: add an option to override keyed autoboot 10 years ago
README.b4860qds e7222b5f49 powerpc/mpc85xx:Fix README to show correct flash memory map 10 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 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files 11 years ago
README.bus_vcxk 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files 11 years ago
README.cfi 466f0137e8 mpc5200, digsy_mtc: add support for rev5 board version 13 years ago
README.commands 4379ac6148 kbuild: rename TOPDIR to stctree 10 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 b8a49bdaaa powerpc: remove genietv board support 10 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.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 93e1459641 Coding Style cleanup: replace leading SPACEs by TABs 10 years ago
README.falcon d118d76601 README.falcon: Note how we determine if we can boot the OS or not 11 years ago
README.fdt-control 065202803d config: don't define CONFIG_ARCH_DEVICE_TREE 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-board 0f605c1501 Start the deprecation process for generic board 10 years ago
README.generic_usb_ohci 6d0f6bcf33 rename CFG_ macros to CONFIG_SYS 15 years ago
README.gpt 39206382de cmd:gpt: randomly generate each partition uuid if undefined 10 years ago
README.hwconfig 1bce2aeb6f Cosmetic: Fix a number of typos, no functional changes. 10 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 6f3bef9e30 doc: README.fuse: Add an example on how to use the fuse API on mx6q 10 years ago
README.imximage 0187c985aa tools: add support for setting the CSF into imximage 10 years ago
README.iomux 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files 11 years ago
README.kwbimage 4ab3fc5eba kirkwood: kwbimage: refactor CONFIG_SYS_KWD_CONFIG 10 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.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.malta b2099d16dc malta: correct tcl script path in README.malta 10 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 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files 11 years ago
README.mips b1a14c471c MIPS: remove obsolete TODO items 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-sd-spi-boot bb0dc1084f powerpc: mpc85xx: Support booting from SD Card with SPL 10 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.mxc_hab 93e1459641 Coding Style cleanup: replace leading SPACEs by TABs 10 years ago
README.mxc_ocotp 0454e0c420 arm: vf610: Add Vybrid VF610 to mxc_ocotp document 11 years ago
README.mxs 6654f33c9b ARM: mxs: tools: Use mkimage for BootStream generation 10 years ago
README.mxsimage 93e1459641 Coding Style cleanup: replace leading SPACEs by TABs 10 years ago
README.nand 3f719069c8 mtd: nand: omap: add CONFIG_NAND_OMAP_ECCSCHEME for selection of ecc-scheme 10 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 93e1459641 Coding Style cleanup: replace leading SPACEs by TABs 10 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 3f719069c8 mtd: nand: omap: add CONFIG_NAND_OMAP_ECCSCHEME for selection of ecc-scheme 10 years ago
README.pblimage 262737f05a powerpc/tool/pbl: fix pbl image compiling process 10 years ago
README.plan9 eeaef5e430 cmd_bootm: Add command line arguments to Plan 9 11 years ago
README.power-framework ccfc89cb16 doc:power:pmic: Add doc entry for PMIC(v2) framework 10 years ago
README.ppc440 24956642ef Remove unused CONFIG_SERIAL_SOFTWARE_FIFO feature 13 years ago
README.pxe 1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files 11 years ago
README.qemu-mips 16641d52fc Coding Style cleanup: drop some excessive empty lines 10 years ago
README.ramboot-ppc85xx 93e1459641 Coding Style cleanup: replace leading SPACEs by TABs 10 years ago
README.rmobile 36da5f84a9 arm: rmobile: Update README.rmobile 10 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 36bf57b6fb arm: remove lubbock board support 10 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.sh7753evb 320cf35080 sh: add support for sh7753evb board 10 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.socfpga c5c1af2176 socfpga/dwmmc: Adding DesignWare MMC driver support for SOCFPGA 10 years ago
README.spear f273e5b2a6 SPEAr: Add configuration options for spear3xx and spear6xx boards 12 years ago
README.splashprepare 59b1592211 video: lcd: Make splash_screen_prepare weak, remove config macro 11 years ago
README.srio-pcie-boot-corenet 5a516748a8 powerpc/doc: Update the 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 49e946cb6a board/t4240qds, b4860qds: LAW/TLB for DCSR set to size 32M 11 years ago
README.trace 93e1459641 Coding Style cleanup: replace leading SPACEs by TABs 10 years ago
README.ubi 93e1459641 Coding Style cleanup: replace leading SPACEs by TABs 10 years ago
README.ublimage 04e5ae7931 Minor coding style cleanup. 12 years ago
README.unaligned-memory-access.txt 1551df35f2 arm: Switch to -mno-unaligned-access when supported by the compiler 10 years ago
README.update 7130a579fd add command fitupd to run an update from a FIT image 13 years ago
README.usb dd11acaa74 usb: net: update README.usb to list all USB ethernet options 10 years ago
README.vf610 24e8bee508 arm: vf610: Add Vybrid VF610 CPU support 11 years ago
README.video b8a49bdaaa powerpc: remove genietv board support 10 years ago
README.vxworks 82450b9a62 README.vxworks: add a document describing the new VxWorks boot interface 10 years ago
README.watchdog e9a389a184 blackfin: Move blackfin watchdog driver out of the blackfin arch folder. 11 years ago
README.zfs 93e1459641 Coding Style cleanup: replace leading SPACEs by TABs 10 years ago
README.zynq 10a147bc66 doc: Update the zynq u-boot status 10 years ago
feature-removal-schedule.txt ce3ca05d77 feature-removal-schedule.txt: Drop CONFIG_SYS_ENABLE_PADS_ALL/CLOCKS_ENABLE_ALL 10 years ago
git-mailrc 398bd4e5b7 git-mailrc: Update SPI custodian 10 years ago
kwboot.1 3fdf7596df Change e-mail address of Luka Perkov 11 years ago
mkimage.1 399c744b22 mkimage: Add -r option to specify keys that must be verified 11 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