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author | Wolfgang Denk <wd@denx.de> | 2012-07-30 20:39:52 +0200 |
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committer | Wolfgang Denk <wd@denx.de> | 2012-07-30 20:39:52 +0200 |
commit | b98b611502f5e0a85a1f8e15cf46c470cb105614 (patch) | |
tree | cafae797ef1f031088e7a988d8e1eaa36ea016a3 /board/freescale/p1_p2_rdb_pc/README | |
parent | 190649fb4309d1bc0fe7732fd0f951cb6440f935 (diff) | |
parent | 15ae8a31ca5d3860b0957edec4fca373daff6bb5 (diff) | |
download | blackbird-obmc-uboot-b98b611502f5e0a85a1f8e15cf46c470cb105614.tar.gz blackbird-obmc-uboot-b98b611502f5e0a85a1f8e15cf46c470cb105614.zip |
Merge branch 'next' of git://git.denx.de/u-boot
* 'next' of git://git.denx.de/u-boot:
MPC8xx: Fixup warning in arch/powerpc/cpu/mpc8xx/cpu.c
doc: cleanup - move board READMEs into respective board directories
net: sh_eth: add support for SH7757's GETHER
net: sh_eth: modify the definitions of regsiter
net: sh_eth: add SH_ETH_TYPE_ condition
net: sh_eth: clean up for the SH7757's code
net: fec_mxc: Fix MDC for xMII
net: fec_mxc: Fix setting of RCR for xMII
net: nfs: make NFS_TIMEOUT configurable
net: Inline the new eth_setenv_enetaddr_by_index function
net: allow setting env enetaddr from net device setting
net/designware: Consecutive writes to the same register to be avoided
CACHE: net: asix: Fix asix driver to work with data cache on
net: phy: micrel: make ksz9021 phy accessible
net: abort network initialization if the PHY driver fails
phylib: phy_startup() should return an error code on failure
net: tftp: fix type of block arg to store_block
Signed-off-by: Wolfgang Denk <wd@denx.de>
Diffstat (limited to 'board/freescale/p1_p2_rdb_pc/README')
-rw-r--r-- | board/freescale/p1_p2_rdb_pc/README | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/board/freescale/p1_p2_rdb_pc/README b/board/freescale/p1_p2_rdb_pc/README new file mode 100644 index 0000000000..44377317dd --- /dev/null +++ b/board/freescale/p1_p2_rdb_pc/README @@ -0,0 +1,46 @@ +Overview +-------- +P1_P2_RDB_PC represents a set of boards including + P1020MSBG-PC + P1020RDB-PC + P1020UTM-PC + P1021RDB-PC + P1024RDB + P1025RDB + P2020RDB-PC + +They have similar design of P1020RDB but have DDR3 instead of DDR2. P2020RDB-PC +has 64-bit DDR. All others have 32-bit DDR. + +Key features on these boards include: + * DDR3 + * NOR flash + * NAND flash (on RDB's only) + * SPI flash (on RDB's only) + * SDHC/MMC card slot + * VSC7385 Ethernet switch (on P1020MBG, P1020RDB, & P1021RDB) + * PCIE slot and mini-PCIE slots + +As these boards use soldered DDR chips not regular DIMMs, an on-board EEPROM +is used to store SPD data. In case of absent or corrupted SPD, falling back +to timing data embedded in the source code will be used. Raw timing data is +extracted from DDR chip datasheet. Different speeds of DDR are supported with +this approach. ODT option is forced to fit this set of boards, again because +they don't have regular DIMMs. + +CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS is defined as 5ms to meet specification +for writing timing. + +VSC firmware Address is defined by default in config file for eTSEC1. + +SD width is based off DIP switch. DIP switch is detected on the +board by reading i2c bus and setting the appropriate mux values. + +Some boards have QE module in the silicon (P1021 and P1025). QE and eLBC have +pins multiplexing. QE function needs to be disabled to access Nor Flash and +CPLD. QE-UEC and QE-UART can be enabled for linux kernel by setting "qe" +in hwconfig. In addition, QE-UEC and QE-TDM also have pins multiplexing, to +enable QE-TDM for linux kernel, set "qe;tdm" in hwconfig. Syntax is as below + +'setenv hwconfig qe' to enable QE UEC/UART and disable Nor-Flash/CPLD. +'setenv hwconfig 'qe;tdm'' to enalbe QE TDM and disable Nor-Flash/CPLD. |