diff options
Diffstat (limited to 'board/freescale/mpc8641hpcn/README')
| -rw-r--r-- | board/freescale/mpc8641hpcn/README | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/board/freescale/mpc8641hpcn/README b/board/freescale/mpc8641hpcn/README index d8fe0a4a13..77909a8383 100644 --- a/board/freescale/mpc8641hpcn/README +++ b/board/freescale/mpc8641hpcn/README @@ -80,7 +80,7 @@ Switches: 3. Flash U-Boot --------------- The flash range 0xEF800000 to 0xEFFFFFFF can be divided into 2 halves. -It is possible to use either half to boot using u-boot. Switch 5 bit 2 +It is possible to use either half to boot using U-Boot. Switch 5 bit 2 is used for this purpose. 0xEF800000 to 0xEFBFFFFF - 4MB @@ -102,7 +102,7 @@ To Flash U-Boot into the booting bank (0xEFC00000 - 0xEFFFFFFF): or use tftpflash command: run tftpflash -To Flash U-boot into the alternative bank (0xEF800000 - 0xEFBFFFFF): +To Flash U-Boot into the alternative bank (0xEF800000 - 0xEFBFFFFF): tftp 1000000 u-boot.bin erase efb00000 +$filesize @@ -113,7 +113,7 @@ To Flash U-boot into the alternative bank (0xEF800000 - 0xEFBFFFFF): ------------- NOTE: RIO and PCI are mutually exclusive, so they share an address -For 32-bit u-boot, devices are mapped so that the virtual address == +For 32-bit U-Boot, devices are mapped so that the virtual address == the physical address, and the map looks liks this: Memory Range Device Size @@ -130,7 +130,7 @@ the physical address, and the map looks liks this: 0xffc1_0000 0xffc1_ffff PCI2/PEX2 IO 64K 0xef80_0000 0xefff_ffff Flash 8M -For 36-bit-enabled u-boot, the virtual map is the same as for 32-bit. +For 36-bit-enabled U-Boot, the virtual map is the same as for 32-bit. However, the physical map is altered to reside in 36-bit space, as follows. Addresses are no longer mapped with VA == PA. All accesses from software use the VA; the PA is only used for setting up windows |
