Hello list,

inside the automatic U-Boot patch tracking system a new ticket [DNX#2006081142000018] was created:

<snip>

This series of patches add mpc7448hpc2 board support. Mpc7448hpc2 (taiga) board is a high-performance PowerPC server reference design.

This is the second version for this board support according to the feedback from mailing list. Roy

Signed-off-by: Roy Zang tie-fei.zang@freescale.com

---

doc/README.mpc7448hpc2 | 181 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 files changed, 181 insertions(+), 0 deletions(-)

diff --git a/doc/README.mpc7448hpc2 b/doc/README.mpc7448hpc2 new file mode 100644 index 0000000..00fda4e --- /dev/null +++ b/doc/README.mpc7448hpc2 @@ -0,0 +1,181 @@ +Freescale MPC7448hpc2 (Taiga) board +-------------------------- +MPC7448hpc2 (Taiga) board is a high-performance PowerPC server reference +design, which is optimized for high speed throughput between the processor and +the memory, disk drive and Ethernet port subsystems.

+MPC7448hpc2(Taiga) is designed to the micro-ATX chassis, allowing it to be +used in 1U or 2U rack-mount chassis', as well as in standard ATX/Micro-ATX +chassis.

+Memory Map +----------

+The memory map is setup for Linux to operate properly.

+The mapping is:

• Range Start Range End Definition Size
• 0x0000_0000 0x7fff_ffff DDR 2G
• 0xe000_0000 0xe7ff_ffff PCI Memory 128M
• 0xfa00_0000 0xfaff_ffff PCI IO 16M
• 0xfb00_0000 0xfbff_ffff PCI Config 16M
• 0xfc00_0000 0xfc0f_ffff NVRAM/CADMUS 1M
• 0xfe00_0000 0xfeff_ffff PromJet 16M
• 0xff00_0000 0xff80_0000 FLASH (boot flash) 8M
• 0xff80_0000 0xffff_ffff FLASH (second half flash) 8M

+Using Flash +-----------

+The MPC7448hpc2 board has two "banks" of flash, each 8MB in size +(2^23 = 0x00800000).

+Note: the "bank" here refers to half of the flash. In fact, there is only one +bank of flash, which is divided into low and high half. Each is controlled by +the most significant bit of the address bus. The so called "bank" is only for +convenience.

+There is a switch which allows the "bank" to be selected. The switch +settings for updating flash are given below.

+The u-boot commands for copying the boot-bank into the secondary bank are +as follows:

• erase ff800000 ff880000
  

• cp.b ff000000 ff800000 80000
  

+U-boot commands for downloading an image via tftp and flashing +it into the secondary bank:

• tftp 10000 <u-boot.bin.image>
  

• erase ff000000 ff080000
  

• cp.b 10000 ff000000 80000
  

+After copying the image into the second bank of flash, be sure to toggle +SW3[4] on board before resetting the board in order to set the +secondary bank as the boot-bank.

+Board Switches +----------------------

+Most switches on the board should not be changed. The most frequent

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Your U-Boot support team