diff options
author | Wolfgang Denk <wd@denx.de> | 2010-05-28 20:34:39 +0200 |
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committer | Wolfgang Denk <wd@denx.de> | 2010-05-28 20:34:39 +0200 |
commit | bd7bb6f8a3278caff0ac6eeaf08b188b9bb05dfc (patch) | |
tree | 8c0d3886a19dfd82551588928b448198ac5274ce /doc/README.standalone | |
parent | 35269d3fca60b5f73113b0443c8e40070749c1d9 (diff) | |
parent | 1117cbf2adac59050af1751af6c6a524afa5c3ef (diff) |
Merge branch 'next' of git://git.denx.de/u-boot-nios
Diffstat (limited to 'doc/README.standalone')
-rw-r--r-- | doc/README.standalone | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/doc/README.standalone b/doc/README.standalone index 885c92fb3a2..63810874936 100644 --- a/doc/README.standalone +++ b/doc/README.standalone @@ -19,12 +19,12 @@ Design Notes on Exporting U-Boot Functions to Standalone Applications: thus the compiler cannot perform type checks on these assignments. 2. The pointer to the jump table is passed to the application in a - machine-dependent way. PowerPC, ARM, MIPS and Blackfin architectures - use a dedicated register to hold the pointer to the 'global_data' - structure: r2 on PowerPC, r8 on ARM, k0 on MIPS, and P3 on Blackfin. - The x86 architecture does not use such a register; instead, the - pointer to the 'global_data' structure is passed as 'argv[-1]' - pointer. + machine-dependent way. PowerPC, ARM, MIPS, Blackfin and Nios II + architectures use a dedicated register to hold the pointer to the + 'global_data' structure: r2 on PowerPC, r8 on ARM, k0 on MIPS, + P3 on Blackfin and gp on Nios II. The x86 architecture does not + use such a register; instead, the pointer to the 'global_data' + structure is passed as 'argv[-1]' pointer. The application can access the 'global_data' structure in the same way as U-Boot does: @@ -56,6 +56,7 @@ Design Notes on Exporting U-Boot Functions to Standalone Applications: ARM 0x0c100000 0x0c100000 MIPS 0x80200000 0x80200000 Blackfin 0x00001000 0x00001000 + Nios II 0x02000000 0x02000000 For example, the "hello world" application may be loaded and executed on a PowerPC board with the following commands: |