[U-Boot] [PATCH v2] powerpc/85xx: Add support for new P102x/P2020 RDB style boards

[Kumar Gala]

On Aug 4, 2011, at 10:44 AM, Kumar Gala wrote:

> From: Li Yang <leoli at freescale.com>
> 
> The following boards share a common design but with minor variations
> between them:
> 
> P1020MSBG-PC
> P1020RDB-PC
> P1020UTM-PC
> P1021RDB-PC
> P1024RDB
> P1025RDB
> P2020RDB-PC
> 
> The P1020RDB-PC shares its roots in the existing P1020RDB board design,
> however uses DDR3 instead of DDR2.
> P2020RDB-PC differs from the P102x RDB-PC with 64-bit DDR and 100Mhz SYSCLK.
> 
> 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.
> 
> Signed-off-by: York Sun <yorksun at freescale.com>
> Signed-off-by: Li Yang <leoli at freescale.com>
> Signed-off-by: Zhao Chenhui <b26998 at freescale.com>
> Signed-off-by: Matthew McClintock <msm at freescale.com>
> Signed-off-by: Poonam Aggrwal <poonam.aggrwal at freescale.com>
> Signed-off-by: Priyanka Jain <Priyanka.Jain at freescale.com>
> Signed-off-by: Tang Yuantian <b29983 at freescale.com>
> Signed-off-by: ramneek.mehresh <ramneek.mehresh at freescale.com>
> Signed-off-by: Prabhakar Kushwaha <prabhakar at freescale.com>
> Signed-off-by: Matthew McClintock <msm at freescale.com>
> Signed-off-by: Xie Xiaobo <X.Xie at freescale.com>
> Signed-off-by: Kumar Gala <galak at kernel.crashing.org>
> Signed-off-by: Jerry Huang <Chang-Ming.Huang at freescale.com>
> Signed-off-by: Akhil Goyal <akhil.goyal at freescale.com>
> ---
> v2:
> * cleaned up useless typedef
> * cleaned up some trailing whitespace
> * changes based on CCSR cleanup patch

applied to 85xx next

- k