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-rw-r--r--doc/README.arm6435
-rw-r--r--doc/README.x8634
2 files changed, 60 insertions, 9 deletions
diff --git a/doc/README.arm64 b/doc/README.arm64
index 75586dbaa7..f32108feb7 100644
--- a/doc/README.arm64
+++ b/doc/README.arm64
@@ -36,11 +36,34 @@ Notes
6. CONFIG_ARM64 instead of CONFIG_ARMV8 is used to distinguish aarch64 and
aarch32 specific codes.
+7. CONFIG_SYS_FULL_VA is used to enable 2-level page tables. For cores
+ supporting 64k pages it allows usage of full 48+ virtual/physical addresses
+
+ Enabling this option requires the following ones to be defined:
+ - CONFIG_SYS_MEM_MAP - an array of 'struct mm_region' describing the
+ system memory map (start, length, attributes)
+ - CONFIG_SYS_MEM_MAP_SIZE - number of entries in CONFIG_SYS_MEM_MAP
+ - CONFIG_SYS_PTL1_ENTRIES - number of 1st level page table entries
+ - CONFIG_SYS_PTL2_ENTRIES - number of 1nd level page table entries
+ for the largest CONFIG_SYS_MEM_MAP entry
+ - CONFIG_COREID_MASK - the mask value used to get the core from the
+ MPIDR_EL1 register
+ - CONFIG_SYS_PTL2_BITS - number of bits addressed by the 2nd level
+ page tables
+ - CONFIG_SYS_BLOCK_SHIFT - number of bits addressed by a single block
+ entry from L2 page tables
+ - CONFIG_SYS_PGTABLE_SIZE - total size of the page table
+ - CONFIG_SYS_TCR_EL{1,2,3}_IPS_BITS - the IPS field of the TCR_EL{1,2,3}
+
+
+
+
Contributor
===========
- Tom Rini <trini@ti.com>
- Scott Wood <scottwood@freescale.com>
- York Sun <yorksun@freescale.com>
- Simon Glass <sjg@chromium.org>
- Sharma Bhupesh <bhupesh.sharma@freescale.com>
- Rob Herring <robherring2@gmail.com>
+ Tom Rini <trini@ti.com>
+ Scott Wood <scottwood@freescale.com>
+ York Sun <yorksun@freescale.com>
+ Simon Glass <sjg@chromium.org>
+ Sharma Bhupesh <bhupesh.sharma@freescale.com>
+ Rob Herring <robherring2@gmail.com>
+ Sergey Temerkhanov <s.temerkhanov@gmail.com>
diff --git a/doc/README.x86 b/doc/README.x86
index 1271e5edea..36aaef011d 100644
--- a/doc/README.x86
+++ b/doc/README.x86
@@ -295,9 +295,37 @@ show QEMU's VGA console window. Note this will disable QEMU's serial output.
If you want to check both consoles, use '-serial stdio'.
Multicore is also supported by QEMU via '-smp n' where n is the number of cores
-to instantiate. Currently the default U-Boot built for QEMU supports 2 cores.
-In order to support more cores, you need add additional cpu nodes in the device
-tree and change CONFIG_MAX_CPUS accordingly.
+to instantiate. Note, the maximum supported CPU number in QEMU is 255.
+
+The fw_cfg interface in QEMU also provides information about kernel data, initrd,
+command-line arguments and more. U-Boot supports directly accessing these informtion
+from fw_cfg interface, this saves the time of loading them from hard disk or
+network again, through emulated devices. To use it , simply providing them in
+QEMU command line:
+
+$ qemu-system-i386 -nographic -bios path/to/u-boot.rom -m 1024 -kernel /path/to/bzImage
+ -append 'root=/dev/ram console=ttyS0' -initrd /path/to/initrd -smp 8
+
+Note: -initrd and -smp are both optional
+
+Then start QEMU, in U-Boot command line use the following U-Boot command to setup kernel:
+
+ => qfw
+qfw - QEMU firmware interface
+
+Usage:
+qfw <command>
+ - list : print firmware(s) currently loaded
+ - cpus : print online cpu number
+ - load <kernel addr> <initrd addr> : load kernel and initrd (if any) and setup for zboot
+
+=> qfw load
+loading kernel to address 01000000 size 5d9d30 initrd 04000000 size 1b1ab50
+
+Here the kernel (bzImage) is loaded to 01000000 and initrd is to 04000000. Then, 'zboot'
+can be used to boot the kernel:
+
+=> zboot 02000000 - 04000000 1b1ab50
CPU Microcode
-------------
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