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Adam Graham c645012aef ppc4xx: Autocalibration can set RDCC to over aggressive value. 
The criteria of the AMCC SDRAM Controller DDR autocalibration
U-Boot code is to pick the largest passing write/read/compare
window that also has the smallest SDRAM_RDCC.[RDSS] Read Sample
Cycle Select value.

On some Kilauea boards the DDR autocalibration algorithm can
find a large passing write/read/compare window with a small
SDRAM_RDCC.[RDSS] aggressive value of Read Sample Cycle Select
value "T1 Sample".

This SDRAM_RDCC.[RDSS] Read Sample Cycle Select value of
"T1 Sample" proves to be to aggressive when later on U-Boot
relocates into DDR memory and executes.

The memory traces on the Kilauea board are short so on some
Kilauea boards the SDRAM_RDCC.[RDSS] Read Sample Cycle Select
value of "T1 Sample" shows up as a potentially valid value for
the DDR autocalibratiion algorithm.

The fix is to define a weak default function which provides
the minimum SDRAM_RDCC.[RDSS] Read Sample Cycle Select value
to accept for DDR autocalibration.  The default will be the
"T2 Sample" value.  A board developer who has a well defined
board and chooses to be more aggressive can always provide
their own board specific string function with the more
aggressive "T1 Sample" value or stick with the default
minimum SDRAM_RDCC.[RDSS] value of "T2".

Also put in a autocalibration loop fix for case where current
write/read/compare passing window size is the same as a prior
window size, then in this case choose the write/read/compare
result that has the associated smallest RDCC T-Sample value.

Signed-off-by: Adam Graham <agraham@amcc.com>
Signed-off-by: Stefan Roese <sr@denx.de>
2009-02-12 06:08:07 +01:00
..
asm-arm Coding style cleanup; update CHANGELOG 2009-02-12 00:08:39 +01:00
asm-avr32 Add an architecture specific config.h for common defines 2009-02-10 00:43:54 +01:00
asm-blackfin Add an architecture specific config.h for common defines 2009-02-10 00:43:54 +01:00
asm-i386 Add an architecture specific config.h for common defines 2009-02-10 00:43:54 +01:00
asm-m68k Add an architecture specific config.h for common defines 2009-02-10 00:43:54 +01:00
asm-microblaze Add an architecture specific config.h for common defines 2009-02-10 00:43:54 +01:00
asm-mips Add an architecture specific config.h for common defines 2009-02-10 00:43:54 +01:00
asm-nios Add an architecture specific config.h for common defines 2009-02-10 00:43:54 +01:00
asm-nios2 Add an architecture specific config.h for common defines 2009-02-10 00:43:54 +01:00
asm-ppc ppc4xx: Autocalibration can set RDCC to over aggressive value. 2009-02-12 06:08:07 +01:00
asm-sh Add an architecture specific config.h for common defines 2009-02-10 00:43:54 +01:00
asm-sparc Add an architecture specific config.h for common defines 2009-02-10 00:43:54 +01:00
bedbug Big white-space cleanup. 2008-05-21 00:14:08 +02:00
configs ppc4xx: Autocalibration can set RDCC to over aggressive value. 2009-02-12 06:08:07 +01:00
cramfs Fix endianess problem in cramfs code (cramfs is always host-endian in Linux) 2008-03-03 22:08:08 +01:00
galileo rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
jffs2 jffs2: summary support 2008-12-09 23:39:59 +01:00
linux NAND: rename NAND_MAX_CHIPS to CONFIG_SYS_NAND_MAX_CHIPS 2009-01-23 10:32:51 -06:00
lzma Add support for LZMA uncompression algorithm. 2008-09-13 01:59:07 +02:00
mtd UBI: Add basic UBI support to U-Boot (Part 7/8) 2008-11-19 20:34:39 +01:00
pcmcia
u-boot Add support for calculating hashes with watchdog triggering 2008-04-25 00:01:06 +02:00
_exports.h [ARM] TI DaVinci support, hopefully final 2007-08-10 20:26:18 +02:00
.gitignore Update U-Boot's build timestamp on every compile 2008-12-06 23:36:43 +01:00
4xx_i2c.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
74xx_7xx.h powerpc: Move duplicated BAT defines to mmu.h 2009-02-10 00:27:40 +01:00
405_dimm.h
405_mal.h ppc4xx: Add basic support for AMCC 460EX/460GT (3/5) 2008-03-15 07:28:04 +01:00
ACEX1K.h Add size #defines for Altera Cyclone-II EP2C8 and EP2C20. 2008-06-03 21:40:09 +02:00
addr_map.h Introduce addr_map library 2008-12-15 22:05:36 +01:00
ahci.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
altera.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
ambapp.h Coding Style cleanup; update CHANGELOG 2008-04-13 09:59:26 -07:00
api_public.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
arm920t.h
arm925t.h
arm926ejs.h
arm946es.h
armcoremodule.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
at45.h Coding style cleanup. Update CHANGELOG. 2007-08-14 18:42:36 +02:00
at91rm9200_i2c.h
at91rm9200_net.h
ata.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
atmel_lcdc.h Add ATMEL LCD driver 2008-05-10 11:44:55 +02:00
bcd.h rtc: Add Xicor/Intersil X1205 RTC support 2007-10-31 21:20:50 +01:00
bcm5221.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
bmp_layout.h
bzlib.h
circbuf.h
clps7111.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
command.h Command usage cleanup 2009-01-28 08:49:52 +01:00
common.h MIPS: Add flush_dcache_range() and invalidate_dcache_range() 2009-01-27 23:06:58 +09:00
commproc.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
config_cmd_all.h Add 'license' command to U-Boot command line 2008-08-18 23:21:49 +02:00
config_cmd_default.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
console.h
crc.h
da9030.h
dataflash.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
ddr_spd.h Add proper SPD definitions for DDR1/2/3 2008-08-27 02:05:53 +02:00
devices.h Blackfin: support console-over-JTAG 2009-01-28 13:26:15 -05:00
div64.h Add a do_div() wrapper macro, lldiv(). 2009-01-24 00:23:09 +01:00
dm9161.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
dp83848.h [ARM] TI DaVinci support, hopefully final 2007-08-10 20:26:18 +02:00
ds4510.h Add support for Maxim's DS4510 I2C device 2009-01-24 01:47:50 +01:00
dtt.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
e500.h Add secondary CPUs processor frequency for e500 core 2009-01-23 17:03:14 -06:00
elf.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
environment.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
exports.h UBI: Add basic UBI support to U-Boot (Part 6/8) 2008-11-19 20:34:39 +01:00
ext2fs.h
fat.h Remove non-ascii characters from fat code 2008-12-04 20:51:44 +01:00
fdc.h
fdt_support.h fdt: Added helper to set PCI dma-ranges property 2008-10-24 17:34:57 -05:00
fdt.h powerpc: Fix bootm to boot up again with a Ramdisk 2008-09-13 02:03:38 +02:00
fis.h ata: add the fis struct for SATA 2008-03-26 23:38:54 +01:00
flash.h cfi: make flash_get_info() non static 2009-02-11 17:01:17 +01:00
fpga.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
hush.h hush: add showvar command for hush shell. 2008-10-18 21:54:02 +02:00
i2c.h i2c: merge all i2c_reg_read() and i2c_reg_write() into inline functions 2008-12-15 23:46:21 +01:00
i8042.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
ide.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
image.h Fix FIT and FDT support to have CONFIG_OF_LIBFDT and CONFIG_FIT independent 2008-12-13 23:31:49 +01:00
iomux.h IOMUX: Add console multiplexing support. 2008-12-07 01:23:35 +01:00
ioports.h Stop using immap_t for cpm offset on 85xx 2007-12-11 22:34:19 -06:00
keyboard.h
kgdb.h
lcd.h lcd: Let the board code show board-specific info 2008-10-27 09:53:58 +01:00
lcdvideo.h
lh7a40x.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
lh7a400.h
lh7a404.h
libata.h ata: update the libata.h from ata.h of linux kernel 2008-04-13 23:20:16 -07:00
libfdt_env.h libfdt: Fix redefined uintptr_t warning for USE_HOSTCC 2008-12-10 00:59:15 +01:00
libfdt.h libfdt: Fix error in documentation for fdt_get_alias_namelen() 2008-10-04 07:56:06 -04:00
linux_logo.h
lmb.h Fix LMB type issues 2008-07-10 00:39:28 +02:00
logbuff.h Avoid initrd and logbuffer area overlaps 2008-06-03 19:34:19 +02:00
lpd7a400_cpld.h
lxt971a.h Remove duplicate definitions in include/lxt971a.h. 2008-07-06 23:44:34 -07:00
lynxkdi.h
malloc.h
mb862xx.h Fix whitespace damage: double space changed to a tab 2009-02-11 23:03:41 +01:00
MCD_dma.h ColdFire: Add MCF547x_8x dma code and header files 2008-01-17 14:59:42 -06:00
MCD_progCheck.h ColdFire: Add MCF547x_8x dma code and header files 2008-01-17 14:59:42 -06:00
MCD_tasksInit.h ColdFire: Add MCF547x_8x dma code and header files 2008-01-17 14:59:42 -06:00
mii_phy.h
miiphy.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
mk48t59.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
mmc.h MMC: Consolidate MMC/SD command definitions 2008-06-28 22:40:15 +02:00
mpc5xx.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
mpc5xxx_sdma.h Move MPC5xxx_FEC driver to drivers/net 2008-08-29 13:58:07 -06:00
mpc5xxx.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
mpc8xx_irq.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
mpc8xx.h Coding stylke cleanup; rebuild CHANGELOG 2007-06-22 23:59:00 +02:00
mpc83xx.h mpc83xx: Add support for MPC83xx PCI-E controllers 2009-01-21 18:43:49 -06:00
mpc85xx.h 83xx/85xx: further localbus cleanups 2008-06-10 18:22:25 -05:00
mpc86xx.h powerpc: Move duplicated BAT defines to mmu.h 2009-02-10 00:27:40 +01:00
mpc106.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
mpc512x.h ADS5121 Add PATA support 2009-02-03 15:40:29 -07:00
mpc824x.h powerpc: Move duplicated BAT defines to mmu.h 2009-02-10 00:27:40 +01:00
mpc8220.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
mpc8260_irq.h
mpc8260.h Coding stylke cleanup; rebuild CHANGELOG 2007-06-22 23:59:00 +02:00
nand.h NAND: move board_nand_init to nand.h 2009-01-23 10:32:49 -06:00
net.h Move is_valid_ether_addr() to include/net.h 2009-01-28 23:59:27 -08:00
netdev.h Fix whitespace damage: double space changed to a tab 2009-02-11 23:03:41 +01:00
nios2-epcs.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
nios2-io.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
nios2.h
nios-io.h
nios.h
ns7520_eth.h Remove duplicate definitions in include/lxt971a.h. 2008-07-06 23:44:34 -07:00
ns9750_bbus.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
ns9750_eth.h Remove duplicate definitions in include/lxt971a.h. 2008-07-06 23:44:34 -07:00
ns9750_mem.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
ns9750_ser.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
ns9750_sys.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
ns16550.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
ns87308.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
onenand_uboot.h Compile warning fix in onenand_uboot.h 2009-02-02 20:42:15 +01:00
part.h Add support for CONFIG_EFI_PARTITION (GUID Partition Table) 2008-10-18 21:54:01 +02:00
pc_keyb.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
pca953x.h Add support for PCA953x I2C gpio devices 2008-12-19 18:11:49 -06:00
pci_ids.h mpc85xx: Add support for the MPC8536 2008-08-27 11:43:54 -05:00
pci.h drivers/pci: Create pci_map_bar function 2009-02-10 00:27:13 +01:00
pcmcia.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
post.h FPU POST: fix warnings when building with 2.18 binutils 2009-01-24 01:49:41 +01:00
ppc4xx_enet.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
ppc4xx.h ppc4xx: Add routine to retrieve CPU number 2008-10-21 17:34:56 +02:00
ppc405.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
ppc440.h ppc4xx: Added ppc4xx-isram.h for internal SRAM and L2 cache DCRs 2008-11-21 10:52:33 +01:00
ppc_asm.tmpl e500 needs ppc_asm.tmp MCK_EXCEPTION 2007-08-14 01:21:22 -05:00
ppc_defs.h
ps2mult.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
radeon.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
reiserfs.h
rtc.h rtc: allow rtc_set to return an error and use it in cmd_date 2008-09-07 00:56:36 +02:00
s3c24x0.h
s3c64x0.h ARM: Add arm1176 core with S3C6400 SoC 2008-08-31 00:39:46 +02:00
s3c2400.h
s3c2410.h Fix compiler warning in include/s3c2410.h 2007-08-29 02:05:53 +02:00
s3c6400.h ARM: Add arm1176 core with S3C6400 SoC 2008-08-31 00:39:46 +02:00
s_record.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
sa1100.h
SA-1100.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
sata.h SATA: do not auto-initialize during boot 2009-01-27 23:42:39 +01:00
scsi.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
sed156x.h
sed13806.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
serial.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
sha1.h Add support for calculating hashes with watchdog triggering 2008-04-25 00:01:06 +02:00
sha256.h include/sha256.h: fix file permissions. 2008-07-06 01:21:46 +02:00
sm501.h
smiLynxEM.h
spartan2.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
spartan3.h Fix Spartan-3 definitions. 2008-09-22 22:07:20 +02:00
spd_sdram.h
spd.h
spi_flash.h SPI Flash subsystem 2008-06-03 20:31:34 +02:00
spi.h Move conditional compilation of MPC8XXX SPI driver to Makefile 2008-07-01 21:02:11 +02:00
status_led.h Blackfin: implement general support for CONFIG_STATUS_LED 2009-01-28 13:26:12 -05:00
stratixII.h Altera Stratix II support 2008-04-13 14:52:48 -07:00
sym53c8xx.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
systemace.h
timestamp.h Update U-Boot's build timestamp on every compile 2008-12-06 23:36:43 +01:00
tsec.h net: tsec: Fix Marvell 88E1121R phy init 2008-12-04 22:51:54 -08:00
tsi108.h
ubi_uboot.h Coding style cleanup, update CHANGELOG. 2008-12-16 01:02:17 +01:00
universe.h
usb_cdc_acm.h
usb_defs.h Prepare USB layer for ehci 2009-01-28 19:57:27 +01:00
usb.h usb : musb : Enabling DM6446 (TI DaVinci) USB module power 2009-01-28 19:57:30 +01:00
usbdcore_ep0.h
usbdcore_mpc8xx.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
usbdcore_omap1510.h usbtty/omap: update to current API 2008-12-09 21:12:41 +01:00
usbdcore.h Consolidate MAX/MIN definitions 2008-11-02 16:23:46 +01:00
usbdescriptors.h
version.h Makefile: fix "error: version_autogenerated.h: No such file or directory" 2008-05-13 23:15:52 +02:00
vfd_logo.h
video_ad7176.h
video_ad7177.h
video_ad7179.h
video_easylogo.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
video_fb.h
video_font.h
video_logo.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
video.h
virtex2.h Big white-space cleanup. 2008-05-21 00:14:08 +02:00
vsc7385.h Cleanup coding style, update CHANGELOG 2008-03-26 11:48:46 +01:00
vxworks.h vxworks.h: Fix build problem introduced by commits 29a4c24d/e9084b23 2008-12-09 00:24:30 +01:00
w83c553f.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
watchdog.h
xilinx.h rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
xyzModem.h
zlib.h