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u-boot/board/freescale/p1_p2_rdb_pc
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Scott Wood d69dba367a powerpc/mpc85xx/p1_p2_rdb: add all LAWs during SPL 
LAW init is skipped in the SPL payload because it's assumed that the SPL
has taken care of it -- so make sure the SPL loads all the LAWs as is
done on other boards.

This bug was introduced by:

  commit 4589728e21
  Author: Kumar Gala <galak@kernel.crashing.org>
  Date:   Fri Nov 11 08:14:53 2011 -0600

    powerpc/85xx: Fix builds of P1020/P2020RDB-PC_36BIT_NAND

    Size grew a bit so nand-spl didn't fit in 4k, reduce done by removing
    LAW entries not needed during SPL phase.

Signed-off-by: Scott Wood <scottwood@freescale.com>
2012-08-23 12:49:48 -05:00
..
ddr.c powerpc/mpc8xxx: Fix CONFIG_DDR_RAW_TIMING for two boards 2012-04-24 23:58:30 -05:00
law.c powerpc/mpc85xx/p1_p2_rdb: add all LAWs during SPL 2012-08-23 12:49:48 -05:00
Makefile punt unused clean/distclean targets 2011-10-15 22:20:36 +02:00
p1_p2_rdb_pc.c powerpc/85xx: don't display address map size (32-bit vs. 36-bit) during boot 2012-04-24 23:58:34 -05:00
README doc: cleanup - move board READMEs into respective board directories 2012-07-29 15:42:02 +02:00
tlb.c powerpc/85xx: Add support for new P102x/P2020 RDB style boards 2011-09-29 19:01:04 -05:00

README 

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.