u-boot-2016/arch
Alexey Brodkin f13606b77d arc: introduce U-Boot port for ARCv2 ISA
ARC HS and ARC EM are new cores based on ARCv2 ISA which is binary
incompatible with ISAv1 (AKA ARCompact).

Significant difference between ISAv2 and v1 is implementation of
interrupt vector table.

In v1 it is implemented in the same way as on many other architectures -
as a special location where user may put whether code executed in place
(if machine word of space is enough) or jump to a full-scale interrupt
handler.

In v2 interrupt table is just an array of adresses of real interrupt
handlers. That requires a separate section for IVT that is not encoded
as code by assembler.

This change adds support for following cores:
 * ARC EM6 (simple 32-bit microcontroller without MMU)
 * ARC HS36 (advanced 32-bit microcontroller without MMU)
 * ARC HS38 (advanced 32-bit microcontroller with MMU)

As a part of ARC HS38 new version of MMU (v4) was introduced.

Also this change adds AXS131 board which is the same DW ARC SDP base board but
with ARC HS38 CPU tile.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
2015-02-13 09:17:51 +03:00
..
arc arc: introduce U-Boot port for ARCv2 ISA 2015-02-13 09:17:51 +03:00
arm Merge branch 'master' of git://git.denx.de/u-boot-atmel 2015-02-10 10:42:22 -05:00
avr32 Kbuild: introduce Makefile in arch/$ARCH/ 2014-12-08 09:35:45 -05:00
blackfin Export redesign 2015-01-29 17:09:57 -07:00
m68k m68k: remove TASREG board 2015-01-13 09:37:21 -05:00
microblaze microblaze: spl: Add LISTS to linker script 2015-02-09 15:13:12 +01:00
mips MIPS: unify CPU code in arch/mips/cpu/ 2015-01-30 14:19:58 +01:00
nds32 common: Move dram_init() declaration to common location 2015-02-09 15:08:48 +01:00
nios2 Kbuild: introduce Makefile in arch/$ARCH/ 2014-12-08 09:35:45 -05:00
openrisc Kbuild: introduce Makefile in arch/$ARCH/ 2014-12-08 09:35:45 -05:00
powerpc crypto/fsl: Add fixup for crypto node 2015-01-23 22:29:14 -06:00
sandbox common: Move dram_init() declaration to common location 2015-02-09 15:08:48 +01:00
sh Replace <compiler.h> with <linux/compiler.h> 2014-12-08 09:35:46 -05:00
sparc Kbuild: introduce Makefile in arch/$ARCH/ 2014-12-08 09:35:45 -05:00
x86 Merge branch 'master' of git://git.denx.de/u-boot-x86 2015-02-10 10:42:56 -05:00
.gitignore .gitignore: drop include/asm/proc from ignore pattern 2014-06-19 11:18:54 -04:00
Kconfig arc: build libgcc in U-Boot 2015-02-09 16:41:20 +03:00