diff options
Diffstat (limited to 'README')
| -rw-r--r-- | README | 22 |
1 files changed, 2 insertions, 20 deletions
@@ -134,7 +134,6 @@ Directory Hierarchy: /m68k Files generic to m68k architecture /microblaze Files generic to microblaze architecture /mips Files generic to MIPS architecture - /nds32 Files generic to NDS32 architecture /nios2 Files generic to Altera NIOS2 architecture /powerpc Files generic to PowerPC architecture /riscv Files generic to RISC-V architecture @@ -2689,8 +2688,8 @@ details; basically, the header defines the following image properties: LynxOS, pSOS, QNX, RTEMS, INTEGRITY; Currently supported: Linux, NetBSD, VxWorks, QNX, RTEMS, INTEGRITY). * Target CPU Architecture (Provisions for Alpha, ARM, Intel x86, - IA64, MIPS, NDS32, Nios II, PowerPC, IBM S390, SuperH, Sparc, Sparc 64 Bit; - Currently supported: ARM, Intel x86, MIPS, NDS32, Nios II, PowerPC). + IA64, MIPS, Nios II, PowerPC, IBM S390, SuperH, Sparc, Sparc 64 Bit; + Currently supported: ARM, Intel x86, MIPS, Nios II, PowerPC). * Compression Type (uncompressed, gzip, bzip2) * Load Address * Entry Point @@ -3402,23 +3401,6 @@ On Nios II, the ABI is documented here: Note: on Nios II, we give "-G0" option to gcc and don't use gp to access small data sections, so gp is free. -On NDS32, the following registers are used: - - R0-R1: argument/return - R2-R5: argument - R15: temporary register for assembler - R16: trampoline register - R28: frame pointer (FP) - R29: global pointer (GP) - R30: link register (LP) - R31: stack pointer (SP) - PC: program counter (PC) - - ==> U-Boot will use R10 to hold a pointer to the global data - -NOTE: DECLARE_GLOBAL_DATA_PTR must be used with file-global scope, -or current versions of GCC may "optimize" the code too much. - On RISC-V, the following registers are used: x0: hard-wired zero (zero) |