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Shinya Kuribayashi a55d48174c [MIPS] lib_mips/time.c: Fix CP0 count register usage and timer routines 
MIPS port has two problems in timer routines. One is now we assume CFG_HZ
equals to CP0 counter frequency, but this is wrong. CFG_HZ has to be 1000
in the U-Boot system.

The other is we don't have a proper time management counter like timestamp
other ARCHs have. We need the 32-bit millisecond clock counter.

This patch introduces timestamp and CYCLES_PER_JIFFY. timestamp is a
32-bit non-overflowing CFG_HZ counter, and CYCLES_PER_JIFFY is the number
of calculated CP0 counter cycles in a CFG_HZ.

STRATEGY:

* Fix improper CFG_HZ value to have 1000

* Use CFG_MIPS_TIMER_FREQ for timer counter frequency, instead.

* timer_init: initialize timestamp and set up the first timer expiration.
  Note that we don't need to initialize CP0 count/compare registers here
  as they have been already zeroed out on the system reset. Leave them as
  they are.

* get_timer: calculate how many timestamps have been passed, then return
  base-relative timestamp. Make sure we can easily count missed timestamps
  regardless of CP0 count/compare value.

* get_ticks: return the current timestamp, that is get_timer(0).

Most parts are from good old Linux v2.6.16 kernel.

v2:
- Remove FIXME comments as they turned out to be trivial.
- Use CP0 compare register as a global variable for expirelo.
- Kill a global variable 'cycles_per_jiffy'. Use #define CYCLES_PER_JIFFY
  instead.

Signed-off-by: Shinya Kuribayashi <skuribay@ruby.dti.ne.jp>
2008-06-05 22:29:00 +09:00
..
asm-arm
Move definition of container_of() to common.h
2008-06-03 20:27:23 +02:00
asm-avr32
atmel_spi: Driver for the Atmel SPI controller
2008-06-03 20:30:05 +02:00
asm-blackfin
Merge branch 'lwmon5' of /home/wd/git/u-boot/projects
2008-05-21 01:13:39 +02:00
asm-i386
Merge branch 'lwmon5' of /home/wd/git/u-boot/projects
2008-05-21 01:13:39 +02:00
asm-m68k
Merge branch 'lwmon5' of /home/wd/git/u-boot/projects
2008-05-21 01:13:39 +02:00
asm-microblaze
Merge branch 'lwmon5' of /home/wd/git/u-boot/projects
2008-05-21 01:13:39 +02:00
asm-mips
mips: Add an 'include/asm/errno.h', like all other architectures
2008-05-30 00:53:38 +09:00
asm-nios
Merge branch 'lwmon5' of /home/wd/git/u-boot/projects
2008-05-21 01:13:39 +02:00
asm-nios2
POST: replace the LOGBUFF_INITIALIZED flag in gd->post_log_word (1 << 31) with the GD_FLG_LOGINIT flag in gd->flags.
2008-05-20 23:24:38 +02:00
asm-ppc
Fix warnings from gcc-4.3.0 build on a ppc host
2008-06-03 19:52:52 +02:00
asm-sh
Merge branch 'lwmon5' of /home/wd/git/u-boot/projects
2008-05-21 01:13:39 +02:00
asm-sparc
POST: replace the LOGBUFF_INITIALIZED flag in gd->post_log_word (1 << 31) with the GD_FLG_LOGINIT flag in gd->flags.
2008-05-20 23:24:38 +02:00
bedbug
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
configs
[MIPS] lib_mips/time.c: Fix CP0 count register usage and timer routines
2008-06-05 22:29:00 +09:00
cramfs
Fix endianess problem in cramfs code (cramfs is always host-endian in Linux)
2008-03-03 22:08:08 +01:00
galileo
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
jffs2
Add common (with Linux) MTD partition scheme and "mtdparts" command
2005-08-08 01:03:24 +02:00
linux
NAND: Provide a sane default for NAND_MAX_CHIPS.
2008-05-28 11:06:24 -05:00
pcmcia
Fix IDE stability problems on CPC45 board.
2005-01-22 18:26:04 +00:00
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
include/gitignore: update to all architectures
2008-05-09 20:59:21 +02:00
4xx_i2c.h
ppc4xx: Add basic support for AMCC 460EX/460GT (3/5)
2008-03-15 07:28:04 +01:00
74xx_7xx.h
[ppc] Fix build breakage for all non-4xx PowerPC variants.
2007-06-22 14:58:04 +02:00
405_dimm.h
* Code cleanup:
2003-06-27 21:31:46 +00:00
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
ahci.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
altera.h
Altera Stratix II support
2008-04-13 14:52:48 -07:00
ambapp.h
Coding Style cleanup; update CHANGELOG
2008-04-13 09:59:26 -07:00
api_public.h
API: Add (c) and licensing notice to the public API header.
2008-02-21 11:56:44 +01:00
arm920t.h
* Code cleanup:
2003-06-27 21:31:46 +00:00
arm925t.h
[PATCH] omap925.c: Remove unused functions
2006-10-28 17:13:12 +02:00
arm926ejs.h
* Patch by George G. Davis, 19 Aug 2003:
2003-08-29 22:00:43 +00:00
arm946es.h
Add ARM946E cpu and core module targets; remap memory to 0x00000000
2005-09-25 01:48:28 +02:00
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
Code Cleanup
2004-10-10 18:03:33 +00:00
at91rm9200_net.h
* Move dm9161.c and lxt972.c into cpu/arm920t/at91rm9200
2005-10-05 01:51:29 +02:00
ata.h
Minor coding style cleanup.
2007-05-15 23:38:05 +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
* Implement new mechanism to export U-Boot's functions to standalone
2003-07-24 23:38:38 +00:00
bzlib.h
* Patches by Xianghua Xiao, 15 Oct 2003:
2003-10-15 23:53:47 +00:00
circbuf.h
Add support for Siemens SX1 mobile phone;
2004-03-12 00:14:09 +00:00
clps7111.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
command.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
common.h
Move definition of container_of() to common.h
2008-06-03 20:27:23 +02:00
commproc.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
config_cmd_all.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
config_cmd_default.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
console.h
Initial revision
2000-11-12 23:38:42 +00:00
crc.h
Some code cleanup
2006-04-16 10:51:58 +02:00
da9030.h
This patch adds USB storage support for the delta board. This is the first
2006-05-22 16:33:54 +02:00
dataflash.h
Clean up dataflash partitioning
2008-04-18 00:24:05 -07:00
devices.h
Add support for console over UDP (compatible to Ingo Molnar's
2004-08-02 21:11:11 +00:00
div64.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
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
dtt.h
Add driver for National Semiconductor LM73 temperature sensor
2007-12-27 19:35:35 +01:00
e500.h
Reworked FSL Book-E TLB macros to be more readable
2008-01-09 16:25:03 -06:00
elf.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
environment.h
environment: fix bug introduced by commit a8409f4f1a
2008-05-14 23:36:10 +02:00
exports.h
[ARM] TI DaVinci support, hopefully final
2007-08-10 20:26:18 +02:00
ext2fs.h
ext2fs support added
2004-12-16 17:33:10 +00:00
fat.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
fdc.h
* Code cleanup:
2003-06-27 21:31:46 +00:00
fdt_support.h
83xx/fdt_support: let user specifiy FSL USB Dual-Role controller role
2008-03-25 19:19:39 -05:00
fdt.h
Fix host tool build breakage, take two
2008-03-27 23:49:12 +01:00
fis.h
ata: add the fis struct for SATA
2008-03-26 23:38:54 +01:00
flash.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
fpga.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
ft_build.h
* Fix a bunch of compiler warnings for gcc 4.0
2006-10-19 11:33:52 -05:00
hush.h
Initial revision
2002-11-03 00:07:02 +00:00
i2c.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
i8042.h
* Patch by Marc Singer, 29 May 2003:
2003-05-31 18:35:21 +00:00
ide.h
IDE: - make ide_inb () and ide_outb () "weak", so boards can
2007-08-28 17:39:14 +02:00
image.h
Use watchdog-aware functions when calculating hashes of images - take two
2008-04-25 14:05:21 +02:00
ioports.h
Stop using immap_t for cpm offset on 85xx
2007-12-11 22:34:19 -06:00
keyboard.h
[Strange. I _did_ check these in before. Seems SF restored an old
2004-01-16 00:30:56 +00:00
kgdb.h
Initial revision
2002-08-27 10:38:37 +00:00
lcd.h
Add ATMEL LCD driver
2008-05-10 11:44:55 +02:00
lcdvideo.h
Initial revision
2001-11-03 22:15:16 +00:00
lh7a40x.h
* Patch by Paul Ruhland, 10 Jun 2004:
2004-06-10 21:55:33 +00:00
lh7a400.h
* Patch by Paul Ruhland, 10 Jun 2004:
2004-06-10 21:55:33 +00:00
lh7a404.h
* Patch by Paul Ruhland, 10 Jun 2004:
2004-06-10 21:55:33 +00:00
libata.h
ata: update the libata.h from ata.h of linux kernel
2008-04-13 23:20:16 -07:00
libfdt_env.h
Fix host tool build breakage, take two
2008-03-27 23:49:12 +01:00
libfdt.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
linux_logo.h
Initial revision
2002-09-17 21:37:55 +00:00
lists.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
lmb.h
[new uImage] Introduce lmb from linux kernel for memory mgmt of boot images
2008-02-29 13:15:55 +01:00
logbuff.h
Avoid initrd and logbuffer area overlaps
2008-06-03 19:34:19 +02:00
lpd7a400_cpld.h
* Patch by Paul Ruhland, 17 May 2004:
2004-06-09 13:37:52 +00:00
lxt971a.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
lynxkdi.h
* Patch by Scott McNutt, 21 Jul 2003:
2003-07-27 00:21:01 +00:00
malloc.h
* Code cleanup:
2003-06-27 21:31:46 +00:00
mb862xx.h
Add Fujitsu CoralP/Lime video driver
2008-01-11 16:05:36 +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
* Code cleanup:
2003-06-27 21:31:46 +00:00
miiphy.h
NET: Add Ethernet 1000BASE-X support for PPC4xx
2007-11-06 10:25:33 -05:00
mk48t59.h
include/: Remove obsolete references to CONFIG_COMMANDS
2007-07-09 17:15:49 -05:00
mmc.h
* Fix CONFIG_NET_MULTI support in include/net.h
2003-06-15 22:40:42 +00:00
mpc5xx.h
Coding stylke cleanup; rebuild CHANGELOG
2007-06-22 23:59:00 +02:00
mpc5xxx.h
[ppc] Fix build breakage for all non-4xx PowerPC variants.
2007-06-22 14:58:04 +02:00
mpc8xx_irq.h
Initial revision
2001-04-28 17:59:11 +00:00
mpc8xx.h
Coding stylke cleanup; rebuild CHANGELOG
2007-06-22 23:59:00 +02:00
mpc83xx.h
mpc83xx: cleanup System Part and Revision ID Register (SPRIDR) code
2008-03-28 16:01:06 -05:00
mpc85xx.h
85xx start.S cleanup and exception support
2007-08-14 01:34:21 -05:00
mpc86xx.h
[ppc] Fix build breakage for all non-4xx PowerPC variants.
2007-06-22 14:58:04 +02:00
mpc106.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
mpc512x.h
MPC5121e ADS PCI support take 3
2008-03-02 21:44:59 +01:00
mpc824x.h
Coding stylke cleanup; rebuild CHANGELOG
2007-06-22 23:59:00 +02:00
mpc8220.h
[ppc] Fix build breakage for all non-4xx PowerPC variants.
2007-06-22 14:58:04 +02:00
mpc8260_irq.h
Patches by Murray Jensen, 17 Jun 2003:
2003-06-19 23:40:20 +00:00
mpc8260.h
Coding stylke cleanup; rebuild CHANGELOG
2007-06-22 23:59:00 +02:00
nand.h
NAND: fix some strict-aliasing compiler warnings
2008-04-28 12:08:18 +02:00
net.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
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
Patches by Scott McNutt, 24 Aug 2004:
2004-10-10 21:27:30 +00:00
nios-io.h
Patch by Scott McNutt, 25 Apr 2004:
2004-05-19 21:33:14 +00:00
nios.h
* Patch by Scott McNutt, 04 Oct 2003:
2003-10-08 23:26:14 +00:00
ns7520_eth.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
ns9750_bbus.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
ns9750_eth.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
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
Add support for TB5200 board
2006-07-19 13:50:38 +02:00
ns87308.h
Initial revision
2002-04-01 14:29:03 +00:00
onenand_uboot.h
Make onenand_uboot.h self-sufficient.
2008-05-28 11:06:28 -05:00
part.h
Coding style cleanup, update CHANGELOG
2008-03-27 00:03:57 +01:00
pc_keyb.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
pci_ids.h
Additional PCI IDs for IDE and network controllers
2008-04-17 13:37:57 -07:00
pci.h
Update pci code to use phys_addr_t
2008-05-10 00:59:57 +02:00
pcmcia.h
cpu/ rtc/ include/: Remove lingering references to CFG_CMD_* symbols.
2007-07-10 10:27:39 -05:00
post.h
POST: add POST_STOP flag
2008-05-20 23:24:37 +02:00
ppc4xx_enet.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
ppc4xx.h
ppc4xx: Consolidate some of the 405 and 440 macros/structs into 4xx
2007-10-31 21:20:50 +01:00
ppc405.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
ppc440.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
ppc_asm.tmpl
e500 needs ppc_asm.tmp MCK_EXCEPTION
2007-08-14 01:21:22 -05:00
ppc_defs.h
Initial revision
2000-07-19 14:09:16 +00:00
ps2mult.h
* The PS/2 mux on the BMS2003 board needs 450 ms after power on
2004-01-20 23:12:12 +00:00
radeon.h
Extend ATI Radeon driver to support more video modes
2008-02-15 00:54:01 +01:00
reiserfs.h
Code cleanup
2004-03-25 15:14:43 +00:00
rtc.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
s3c24x0.h
* Code cleanup:
2003-06-27 21:31:46 +00:00
s3c2400.h
Cleanup trab board for GCC-4.x
2006-06-26 10:54:52 +02:00
s3c2410.h
Fix compiler warning in include/s3c2410.h
2007-08-29 02:05:53 +02:00
s_record.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
sa1100.h
Initial revision
2002-03-27 13:48:44 +00:00
SA-1100.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
sata.h
drivers: code clean up
2008-04-13 14:57:46 -07:00
scsi.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
sed156x.h
* Patches by Pantelis Antoniou, 30 Mar 2004:
2004-04-15 21:16:42 +00:00
sed13806.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
serial.h
ARM: s3c24xx: Multiple serial port support
2008-02-04 23:52:49 +01:00
sha1.h
Add support for calculating hashes with watchdog triggering
2008-04-25 00:01:06 +02:00
sm501.h
Add SM501 support to HH405 board.
2005-09-22 09:04:17 +02:00
smiLynxEM.h
* Code cleanup:
2003-06-27 21:31:46 +00:00
spartan2.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
spartan3.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
spd_sdram.h
Support for DDR with 32-data path. Addotional notes on injecting
2006-03-16 17:46:46 +01:00
spd.h
Fix style issues primarily in 85xx and 83xx boards.
2005-08-01 13:20:47 -05:00
spi_flash.h
SPI Flash subsystem
2008-06-03 20:31:34 +02:00
spi.h
SPI API improvements
2008-06-03 20:28:50 +02:00
status_led.h
Coding Style cleanup.
2007-10-13 21:15:39 +02:00
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
* CVS add missing files
2004-02-23 16:11:30 +00:00
tsi108.h
Clean up the code according to codestyle:
2006-12-01 11:47:36 +08:00
universe.h
Code cleanup.
2004-12-16 21:44:03 +00:00
usb_cdc_acm.h
Code cleanup
2006-06-14 18:14:56 +02:00
usb_defs.h
Remove unnecessary defines from usb_defs.h again.
2005-08-02 15:08:46 +02:00
usb.h
Fix compilation error in cmd_usb.c
2008-03-27 00:12:56 +01:00
usbdcore_ep0.h
Add support for Siemens SX1 mobile phone;
2004-03-12 00:14:09 +00:00
usbdcore_mpc8xx.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
usbdcore_omap1510.h
Various USB related patches
2006-06-14 17:45:53 +02:00
usbdcore.h
Various USB related patches
2006-06-14 17:45:53 +02:00
usbdescriptors.h
Code cleanup
2006-06-14 18:14:56 +02:00
version.h
Makefile: fix "error: version_autogenerated.h: No such file or directory"
2008-05-13 23:15:52 +02:00
vfd_logo.h
* Add support for arbitrary bitmaps for TRAB's VFD command
2003-05-20 20:49:01 +00:00
video_ad7176.h
* Patches by Yuli Barcohen, 13 Jul 2003:
2003-07-14 22:13:32 +00:00
video_ad7177.h
* Patches by Yuli Barcohen, 13 Jul 2003:
2003-07-14 22:13:32 +00:00
video_ad7179.h
* Add support for IceCube board (with MGT5100 and MPC5200 CPUs)
2003-07-16 21:53:01 +00:00
video_easylogo.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
video_fb.h
* Code cleanup:
2003-06-27 21:31:46 +00:00
video_font.h
Initial revision
2000-10-25 11:24:22 +00:00
video_logo.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
video.h
Initial revision
2001-11-03 22:21:15 +00:00
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
w83c553f.h
Initial revision
2002-03-08 21:31:05 +00:00
watchdog.h
Cleanup (PPC4xx is AMCC now)
2005-09-23 11:05:55 +02:00
xilinx.h
Big white-space cleanup.
2008-05-21 00:14:08 +02:00
xyzModem.h
More code cleanup
2006-07-21 15:24:56 +02:00
zlib.h
* Code cleanup:
2003-06-27 21:31:46 +00:00