board: ti: am64x: Update MAINTAINERS

[platform/kernel/u-boot.git] / README

diff --git a/README b/README
index d503357..b7ab6e5 100644 (file)
--- a/README
+++ b/README
@@ -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
@@ -1876,27 +1875,6 @@ Configuration Settings:
                the RAM base is not zero, or RAM is divided into banks,
                this variable needs to be recalcuated to get the address.
 
-- CONFIG_SYS_MEM_TOP_HIDE:
-               If CONFIG_SYS_MEM_TOP_HIDE is defined in the board config header,
-               this specified memory area will get subtracted from the top
-               (end) of RAM and won't get "touched" at all by U-Boot. By
-               fixing up gd->ram_size the Linux kernel should gets passed
-               the now "corrected" memory size and won't touch it either.
-               This should work for arch/ppc and arch/powerpc. Only Linux
-               board ports in arch/powerpc with bootwrapper support that
-               recalculate the memory size from the SDRAM controller setup
-               will have to get fixed in Linux additionally.
-
-               This option can be used as a workaround for the 440EPx/GRx
-               CHIP 11 errata where the last 256 bytes in SDRAM shouldn't
-               be touched.
-
-               WARNING: Please make sure that this value is a multiple of
-               the Linux page size (normally 4k). If this is not the case,
-               then the end address of the Linux memory will be located at a
-               non page size aligned address and this could cause major
-               problems.
-
 - CONFIG_SYS_LOADS_BAUD_CHANGE:
                Enable temporary baudrate change while serial download
 
@@ -2710,8 +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
@@ -3423,23 +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)