Commit graph

1119 commits

Author SHA1 Message Date
Stefano Babic
c4a7ece020 Merge branch 'master' of git://git.denx.de/u-boot-arm
Conflicts:
	MAINTAINERS
	boards.cfg

Signed-off-by: Stefano Babic <sbabic@denx.de>
2013-09-13 12:10:07 +02:00
Fabio Estevam
d9b8946035 mx6sabresd: Add LVDS splash screen support
mx6sabresd boards can be connected to a Hannstar XGA LVDS panel.

Add support for displaying U-boot splashscreen on it.

By default, HDMI splash is selected.

In order to use splash via LVDS, do the following in the U-boot prompt:

setenv panel Hannstar-XGA
save

and reboot.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2013-09-10 19:12:55 +02:00
Marek Vasut
7b8657e2bd ARM: mxs: Receive r0 and r1 passed from BootROM
Make sure value in register r0 and r1 is preserved and passed to
the board_init_ll() and mxs_common_spl_init() where it can be
processed further. The value in r0 can be configured during the
BootStream generation to arbitary value, r1 contains pointer to
return value from CALL'd function.

This patch also clears the value in r0 before returning to BootROM
to make sure the BootROM is not confused by this value.

Finally, this patch cleans up some comments in the start.S file.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Fabio Estevam <fabio.estevam@freescale.com>
Cc: Stefano Babic <sbabic@denx.de>
2013-09-10 19:12:54 +02:00
Ying Zhang
81b867aa44 SPL: P1022DS: switch to new multibus/multiadapter support
- Added section "u_boot_list" in arch/powerpc/cpu/mpc85xx/u-boot-spl.lds
- Use the function i2c_init_all instead of i2c_init

Signed-off-by: Ying Zhang <b40530@freescale.com>
2013-09-09 07:43:43 +02:00
Shengzhou Liu
e1a2a34019 powerpc/p1010rdb: fix calculating ddr_freq_mhz
There was a bug for calculating ddr_freq_mhz,
it should be divided by 1000000 rather than 0x1000000.

Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-20 10:46:58 -07:00
Shaohui Xie
1c68d01eea powerpc/t4240: add QSGMII interface support
Also some fix for QSGMII.
1. fix QSGMII configure of Serdes2.
2. fix PHY address of QSGMII MAC9 & MAC10 for each FMAN.
3. fix dtb for QSGMII interface.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-20 10:46:48 -07:00
Shaohui Xie
ae3dcd0488 powerpc/t4240: fix lanes routing for QSGMII protocols
When using QSGMII protocols, the first lane and third lane on each slot
need to be swapped.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-20 10:46:39 -07:00
Shaohui Xie
7d0d355fee powerpc/common/vsc3316: remove const from vsc3316_config parameter define
Since the parameters need to be modified according to different Serdes
protocols at runtime, the const will block this. Also remove const from
arrays define used by vsc3316_config.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-20 10:46:26 -07:00
York Sun
bf90256623 SPDX-License-Identifier: clean up license header
This patch cleans up license header in these files:
	board/freescale/p1022ds/spl.c
	drivers/mmc/fsl_esdhc_spl.c
	drivers/mtd/spi/fsl_espi_spl.c

Signed-off-by: York Sun <yorksun@freescale.com>
2013-08-20 10:15:37 -07:00
Prabhakar Kushwaha
997399fa42 powerpc: Fix CamelCase checkpatch warnings
85xx, 86xx PowerPC folders have code variables with CamelCase naming conventions.
because of this code checkpatch script generates "WARNING: Avoid CamelCase".

Convert variables name to normal naming convention and modify board, driver
files with updated the new structure.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-20 09:57:51 -07:00
Ying Zhang
5d97fe2a04 powerpc: p1022ds: add TPL for p1022ds nand boot
TPL is introduced in the patch "NAND: TPL : introduce the TPL
based on the SPL", here enable TPL for p1022ds nand boot.

Signed-off-by: Ying Zhang <b40530@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-20 09:57:51 -07:00
Ying Zhang
382ce7e909 powerpc : p1022ds : Enable p1022ds to start from eSPI with SPL
Enable p1022ds to start from eSPI with SPL.

Signed-off-by: Ying Zhang <b40530@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-20 09:47:59 -07:00
Ying Zhang
7c8eea59b8 powerpc: p1022ds: Enable P1022DS to boot from SD Card with SPL
Enable p1022ds to start from eSDHC with SPL.

Signed-off-by: Ying Zhang <b40530@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-20 09:47:38 -07:00
Tom Rini
e20cc2ca15 Merge branch 'master' of git://88.191.163.10/u-boot-arm
Fixup an easy conflict over adding the clk_get prototype and USB_OTG
defines for am33xx having moved.

Conflicts:
	arch/arm/include/asm/arch-am33xx/hardware.h

Signed-off-by: Tom Rini <trini@ti.com>
2013-08-18 14:14:34 -04:00
Po Liu
2810312043 powerpc/c29xpcie: add readme document for c29xpcie
Signed-off-by: Po Liu <Po.Liu@freescale.com>
2013-08-14 10:58:34 -07:00
York Sun
3aab0cd852 powerpc/mpc85xx: Cleanup license header in source files
Fix the license header introduced by the following patches

Add TWR-P10xx board support
Add T4240EMU target
IDT8T49N222A configuration code
Add C29x SoC support
Add support for C29XPCIE board

Signed-off-by: York Sun <yorksun@freescale.com>
2013-08-12 15:04:24 -07:00
Mingkai Hu
a8d9758d01 powerpc/c29xpcie: add support for C29XPCIE board
C29XPCIE board is a series of Freescale PCIe add-in cards to perform
as public key crypto accelerator or secure key management module. It
includes C293PCIE board, C293PCIE board and C291PCIE board.

 - 512KB platform SRAM in addition to 512K L2 Cache/SRAM
 - 512MB soldered DDR3 32bit memory
 - CPLD System Logic
 - 64MB x16 NOR flash and 4GB x8 NAND flash
 - 16MB SPI flash

Signed-off-by: Mingkai Hu <Mingkai.Hu@freescale.com>
Singed-off-by: Po Liu <Po.Liu@freescale.com>
[yorksun: Fixup include/configs/C29XPCIE.h]
Signed-off-by: York Sun <yorksun@freescale.com>
2013-08-09 12:41:42 -07:00
Shaveta Leekha
cb033741f4 board/b4860qds: Add support for configuring SerDes1 Refclks
1) Add support in B4860 board files for using IDT driver where
   IDT8T49N222A is a low phase noise Frequency Translator / Synthesizer
   that generate different refclks for SerDes modules, used this driver
   for reconfiguring SerDes1 Refclks(based on SerDes1 protocols)
   for CPRI to work. CPRI works on 122.88MHz and default refclks coming
   on board are not suitable for it
2) Move SerDes1 refclk1 source selection from eth_b4860qds.c file
   to b4860qds board file, as SerDes1 Refclk1 would come from
   PHY MUX in case of certain protocols, that have been checked here.
   This change would make on board SGMIIs to work
3) Add I2C addresses for IDT8T49N222A devices in board/include file
4) Add define for PCA-I2C bus multiplexer, on which IDT devices exist

Signed-off-by: Shaveta Leekha <shaveta@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-09 12:41:41 -07:00
Shaveta Leekha
a5b225181e board/freescale/common: IDT8T49N222A configuration code
Add code for configuring IDT8T49N222A device for various output refclks
    - The IDT8T49N222A is a low phase noise Frequency Translator / Synthesizer with
      alarm and monitoring functions suitable for networking and
      communications applications. It is able to generate wide range of output
      frequencies.
    - In B4860QDS, it has been used to generate different refclks to SerDes modules
    - Programming of these devices are performed by I2C interface.

Signed-off-by: Shaveta Leekha <shaveta@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-09 12:41:40 -07:00
Priyanka Jain
f9d379a707 board/bsc9132qds: Configure DSP DDR controller
BSC9132 SoC has two separate DDR controllers for PowerPC side and DSP side
DDR. They are mapped to PowerPC and DSP CCSR space respectively.
BSC9132QDS has two on-board MC34716EP DDR3 memory one connected to PowerPC
and other to DSP side controller.

Configure DSP DDR controller similar to PowerPC side DDR controller as
memories are exactly similar.

Signed-off-by: Manish Jaggi <manish.jaggi@freescale.com>
Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-09 12:41:40 -07:00
Priyanka Jain
64501c6698 board/bsc9132qds: Add DSP side tlb and laws
BSC9132QDS is a Freescale Reference Design Board for BSC9132 SoC which is a
integrated device that contains two powerpc e500v2 cores and two DSP
starcores.

To support DSP starcore
-Creating LAW and TLB for DSP-CCSR space.
-Creating LAW for DSP-core subsystem M2 and M3 memory
-Creating LAW for 1GB DDR which is connected exclusively to DSP-cores

Signed-off-by: Manish Jaggi <manish.jaggi@freescale.com>
Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-09 12:41:40 -07:00
Haijun.Zhang
45fdb627b3 p1020rdb-pd: platform support
Add new board p1020RDB-PD. P1020RDB-PD board was update from P1020RDB.
DDR changed from DDR2 1G to DDR3 2G.
NAND: 128 MiB
Flash: 64 MiB

Also change P1020RDB to P1020RDB-PC to distinguish from P1020RDB board.

Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
Signed-off-by: Haijun Zhang <Haijun.Zhang@freescale.com>
CC: Scott Wood <scottwood@freescale.com>
Acked-by: York Sun <yorksun@freescale.com>
2013-08-09 12:41:40 -07:00
York Sun
c63e137014 powerpc/mpc8xxx: Add memory reset control
JEDEC spec requires the clocks to be stable before deasserting reset
signal for RDIMMs. Clocks start when any chip select is enabled and
clock control register is set. This patch also adds the interface to
toggle memory reset signal if needed by the boards.

Signed-off-by: York Sun <yorksun@freescale.com>
2013-08-09 12:41:39 -07:00
York Sun
5ecf41cc3d powerpc/t4240qds: Adjust DDR timing for RDIMM
RDIMM has different timing. Tested RDIMM is MT18JSF1G72PDZ-1G9E1 for
dual rank. Single- and quad-rank are not tested due to availability.

Signed-off-by: York Sun <yorksun@freescale.com>
2013-08-09 12:41:39 -07:00
York Sun
1cb19fbb31 powerpc/T4240EMU: Add T4240EMU target
Add emulator support for T4240. Emulator has limited peripherals and
interfaces. Difference between emulator and T4240QDS includes:
	ECC for DDR is disabled due the procedure to load images
	No board FPGA (QIXIS)
	NOR flash has 32-bit port for higher loading speed
	IFC and I2C timing don't really matter, so set them fast
	No ethernet

Signed-off-by: York Sun <yorksun@freescale.com>
2013-08-09 12:41:39 -07:00
York Sun
f165bc3528 powerpc/corenet: Move RCW print to cpu.c
The RCW print is common for all corenet platforms. Not necessary to ducplicate
in each board file.

Signed-off-by: York Sun <yorksun@freescale.com>
2013-08-09 12:41:38 -07:00
Xie Xiaobo
49f5befafd powerpc/85xx: Add TWR-P10xx board support
TWR-P1025 Specification:
-----------------------
Memory subsystem:
   512MB DDR3 (on board DDR)
   64Mbyte 16bit NOR flash
   One microSD Card slot

Ethernet:
   eTSEC1: Connected to Atheros AR8035 GETH PHY
   eTSEC3: Connected to Atheros AR8035 GETH PHY

UART:
   Two UARTs are routed to the FDTI dual USB to RS232 convertor

USB: Two USB2.0 Type A ports

I2C:
   AT24C01B 1K Board EEPROM (8 bit address)

QUICC Engine:
   Connected to DP83849i PHY supply two 10/100M ethernet ports
   QE UART for RS485 or RS232

PCIE:
   One mini-PCIE slot

Signed-off-by: Michael Johnston <michael.johnston@freescale.com>
Signed-off-by: Xie Xiaobo <X.Xie@freescale.com>
[yorksun: Fixup include/configs/p1_twr.h]
Signed-off-by: York Sun <yorksun@freescale.com>
2013-08-09 12:41:25 -07:00
Stefano Babic
326ea986ac Merge git://git.denx.de/u-boot-arm
Conflicts:
	board/freescale/mx6qsabrelite/Makefile
	board/freescale/mx6qsabrelite/mx6qsabrelite.c
	include/configs/mx6qsabrelite.h

Signed-off-by: Stefano Babic <sbabic@denx.de>
2013-07-31 11:30:38 +02:00
Pardeep Kumar Singla
58cc978777 mx6qsabresd: Add splash screen support via HDMI
Signed-off-by: Pardeep Kumar Singla <b45784@freescale.com>
2013-07-27 10:49:45 +02:00
Fabio Estevam
f8b1e86d47 mx6qsabrelite: Remove mx6qsabrelite code in favor of nitrogen6x
mx6qsabrelite and nitrogen6q boards are hardware compatible, so let's avoid the
code duplication and only use the nitrogen6x source code to make board code
maintainance easier.

Tested booting a mainline device tree kernel on a mx6qsabrelite board.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2013-07-26 16:44:29 +02:00
Tom Rini
c2120fbfbc Merge branch 'master' of git://git.denx.de/u-boot-i2c
The sandburst-specific i2c drivers have been deleted, conflict was just
over the SPDX conversion.

Conflicts:
	board/sandburst/common/ppc440gx_i2c.c
	board/sandburst/common/ppc440gx_i2c.h

Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:50:24 -04:00
Wolfgang Denk
1a4596601f Add GPL-2.0+ SPDX-License-Identifier to source files
Signed-off-by: Wolfgang Denk <wd@denx.de>
[trini: Fixup common/cmd_io.c]
Signed-off-by: Tom Rini <trini@ti.com>
2013-07-24 09:44:38 -04:00
Alison Wang
1221b3d74a vf610: Add I2C support for Vybrid VF610 platform
This patch adds I2C support for Vybrid VF610 platform and adds
I2C0 support to VF610TWR board.

Signed-off-by: Alison Wang <b18965@freescale.com>
2013-07-23 08:34:57 +02:00
Heiko Schocher
00f792e0df i2c, fsl_i2c: switch to new multibus/multiadapter support
- added to fsl_i2c driver new multibus/multiadpater support
- adapted all config files, which uses this driver

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
2013-07-23 08:34:53 +02:00
Heiko Schocher
ea818dbbcd i2c, soft-i2c: switch to new multibus/multiadapter support
- added to soft_i2c driver new multibus/multiadpater support
- adapted all config files, which uses this driver

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Stephen Warren <swarren@wwwdotorg.org>
2013-07-23 05:54:29 +02:00
Wolfgang Denk
f4ea9f86d1 PPC MPC83xx: Fix MPC8323ERDB build warning
Fix:

mpc8323erdb.c: In function 'mac_read_from_eeprom':
mpc8323erdb.c:198:3: warning: dereferencing type-punned pointer will
break strict-aliasing rules [-Wstrict-aliasing]

Signed-off-by: Wolfgang Denk <wd@denx.de>
cc: Timur Tabi <timur@tabi.org>
cc: Kim Phillips <kim.phillips@freescale.com>
2013-07-15 18:03:15 -04:00
Tom Rini
fbbbc86e8e Merge branch 'master' of git://git.denx.de/u-boot-arm
Fix a trivial conflict in arch/arm/dts/exynos5250.dtsi about gpio and
serial.

Conflicts:
	arch/arm/dts/exynos5250.dtsi

Signed-off-by: Tom Rini <trini@ti.com>
2013-07-12 10:36:48 -04:00
Albert ARIBAUD
e6c7f86f03 Merge branch 'u-boot-imx/master' into 'u-boot-arm/master' 2013-06-28 17:51:13 +02:00
Fabio Estevam
17f3f36652 mx28evk: Move README file inside board directory
Board specific READMEs should be located inside the respective board directory.

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
2013-06-26 17:40:39 +02:00
Pierre Aubert
c174797061 imx: Add support for the SabreSD shipped with i.MX6DL
The SabreSD platform is available with i.MX6Q or i.MX6DL. This patch adds the
support of the i.MX6DL. The config file and the board directory are renamed
to remove the reference to the MX6Q.

Signed-off-by: Pierre Aubert <p.aubert@staubli.com>
CC: Stefano Babic <sbabic@denx.de>
Reviewed-by: Fabio Estevam <fabio.estevam@freescale.com>
2013-06-26 17:34:11 +02:00
Tom Rini
348e47f766 Merge branch 'master' of git://git.denx.de/u-boot-arm 2013-06-22 07:38:12 -04:00
Albert ARIBAUD
47bd65ef05 arm: make __rel_dyn_{start, end} compiler-generated
This change is only done where needed: some linker
scripts may contain relocation symbols yet remain
unchanged.

__rel_dyn_start and __rel_dyn_end each requires
its own output section; putting them in relocation
sections changes their flags and breaks relocation.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Tested-by: Lubomir Popov <lpopov@mm-sol.com>
Tested-by: Jeroen Hofstee <jeroen@myspectrum.nl>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
2013-06-21 23:05:29 +02:00
Albert ARIBAUD
d026dec875 arm: make __image_copy_{start, end} compiler-generated
This change is only done where needed: some linker
scripts may contain __image_copy_{start,end} yet
remain unchanged.

Also, __image_copy_end needs its own section; putting
it in relocation sections changes their flags and makes
relocation break.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Tested-by: Lubomir Popov <lpopov@mm-sol.com>
Tested-by: Jeroen Hofstee <jeroen@myspectrum.nl>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
2013-06-21 23:05:05 +02:00
Albert ARIBAUD
09d81184e1 remove all references to .dynsym
Discard all .dynsym sections from linker scripts
Remove all __dynsym_start definitions from linker scripts
Remove all __dynsym_start references from the codebase

Note: this touches include/asm-generic/sections.h, which
is not ARM-specific, but actual uses of __dynsym_start
are only in ARM, so this patch can safely go through
the ARM repository.

Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Tested-by: Lubomir Popov <lpopov@mm-sol.com>
Tested-by: Jeroen Hofstee <jeroen@myspectrum.nl>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
2013-06-21 23:04:05 +02:00
Chunhe Lan
5707233880 powerpc/85xx: Add P1023RDB board support
P1023RDB Specification:
-----------------------
Memory subsystem:
   512MB DDR3 (Fixed DDR on board)
   64MB NOR flash
   128MB NAND flash

Ethernet:
   eTSEC1: Connected to Atheros AR8035 GETH PHY
   eTSEC2: Connected to Atheros AR8035 GETH PHY

PCIe:
   Three mini-PCIe slots

USB:
   Two USB2.0 Type A ports

I2C:
   AT24C08 8K Board EEPROM (8 bit address)

Signed-off-by: Chunhe Lan <Chunhe.Lan@freescale.com>
Cc: Scott Wood <scottwood@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-06-20 17:08:53 -05:00
York Sun
5bdeff3214 powerpc/pixis: Fix pixis help message
"pixis_reset help" command prints the message without a new line "\n",
which makes the prompt on the same line.

Signed-off-by: York Sun <yorksun@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-06-20 17:08:52 -05:00
Prabhakar Kushwaha
505c293ffd board/p1010rdb: Fix PCIe TLB creation on CONFIG_PCI define
PCIe TLB should be created with CONFIG_PCI defined

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-06-20 17:08:50 -05:00
Liu Gang
69fdf90010 powerpc/t4qds: Slave module for boot from SRIO and PCIE
When a T4 board boots from SRIO or PCIE, it needs to finish these processes:
	1. Set all the cores in holdoff status.
	2. Set the boot location to one PCIE or SRIO interface by RCW.
	3. Set a specific TLB entry for the boot process.
	4. Set a LAW entry with the TargetID of one PCIE or SRIO for the boot.
	5. Set a specific TLB entry in order to fetch ucode and ENV from
	   master.
	6. Set a LAW entry with the TargetID one of the PCIE ports for
	   ucode and ENV.
	7. Slave's u-boot image should be generated specifically by
	   make xxxx_SRIO_PCIE_BOOT_config.
	   This will set SYS_TEXT_BASE=0xFFF80000 and other configurations.

For more information about the feature of Boot from SRIO/PCIE, please
refer to the document doc/README.srio-pcie-boot-corenet.

Signed-off-by: Liu Gang <Gang.Liu@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-06-20 17:08:49 -05:00
Liu Gang
5870fe44b2 powerpc/b4860qds: Slave module for boot from SRIO and PCIE
When a b4860qds board boots from SRIO or PCIE, it needs to finish these
processes:
	1. Set all the cores in holdoff status.
	2. Set the boot location to one PCIE or SRIO interface by RCW.
	3. Set a specific TLB entry for the boot process.
	4. Set a LAW entry with the TargetID of one PCIE or SRIO for the boot.
	5. Set a specific TLB entry in order to fetch ucode and ENV from
	   master.
	6. Set a LAW entry with the TargetID one of the PCIE ports for
	   ucode and ENV.
	7. Slave's u-boot image should be generated specifically by
	   make xxxx_SRIO_PCIE_BOOT_config.
	   This will set SYS_TEXT_BASE=0xFFF80000 and other configurations.

For more information about the feature of Boot from SRIO/PCIE, please
refer to the document doc/README.srio-pcie-boot-corenet.

Signed-off-by: Liu Gang <Gang.Liu@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-06-20 17:08:48 -05:00
Prabhakar Kushwaha
f64bd7c038 powerpc/mpc85xx:Fix "boot page TLB" entry size for NAND SPL
e500v2 processor does not support 8K page size TLB entries.

So create new TLB entry only during NAND SPL boot.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>
2013-06-20 17:08:47 -05:00