Max Filippov e85e335f8f xtensa: add MMU v3 support ... MMUv3 comes out of reset with identity vaddr -> paddr mapping in the TLB way 6: Way 6 (512 MB) Vaddr Paddr ASID Attr RWX Cache ---------- ---------- ---- ---- --- ------- 0x00000000 0x00000000 0x01 0x03 RWX Bypass 0x20000000 0x20000000 0x01 0x03 RWX Bypass 0x40000000 0x40000000 0x01 0x03 RWX Bypass 0x60000000 0x60000000 0x01 0x03 RWX Bypass 0x80000000 0x80000000 0x01 0x03 RWX Bypass 0xa0000000 0xa0000000 0x01 0x03 RWX Bypass 0xc0000000 0xc0000000 0x01 0x03 RWX Bypass 0xe0000000 0xe0000000 0x01 0x03 RWX Bypass This patch adds remapping code at the reset vector or at the kernel _start (depending on CONFIG_INITIALIZE_XTENSA_MMU_INSIDE_VMLINUX) that reconfigures MMUv3 as MMUv2: Way 5 (128 MB) Vaddr Paddr ASID Attr RWX Cache ---------- ---------- ---- ---- --- ------- 0xd0000000 0x00000000 0x01 0x07 RWX WB 0xd8000000 0x00000000 0x01 0x03 RWX Bypass Way 6 (256 MB) Vaddr Paddr ASID Attr RWX Cache ---------- ---------- ---- ---- --- ------- 0xe0000000 0xf0000000 0x01 0x07 RWX WB 0xf0000000 0xf0000000 0x01 0x03 RWX Bypass Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>		2013-05-09 01:07:09 -07:00
..
boot	xtensa: add MMU v3 support	2013-05-09 01:07:09 -07:00
configs	xtensa: drop CONFIG_EMBEDDED_RAMDISK	2012-10-03 15:13:09 -07:00
include	xtensa: add MMU v3 support	2013-05-09 01:07:09 -07:00
kernel	xtensa: add MMU v3 support	2013-05-09 01:07:09 -07:00
lib	xtensa: clean up files to make them code-style compliant	2012-12-18 21:10:25 -08:00
mm	xtensa: add MMU v3 support	2013-05-09 01:07:09 -07:00
oprofile	xtensa: fix oprofile building as module	2013-05-09 01:07:09 -07:00
platforms	xtensa: fix ibreakenable register update	2013-05-09 01:07:09 -07:00
variants	xtensa: Add config files for Diamond 233L - Rev C processor variant	2013-02-23 19:12:52 -08:00
Kconfig	xtensa: add MMU v3 support	2013-05-09 01:07:09 -07:00
Kconfig.debug	xtensa: add s32c1i sanity check	2012-12-18 21:10:22 -08:00
Makefile	xtensa: add support for oprofile	2013-02-23 19:22:54 -08:00