diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/sh/boards/mach-ap325rxa/sdram.S | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/sh/boards/mach-ap325rxa/sdram.S')
| -rw-r--r-- | kernel/arch/sh/boards/mach-ap325rxa/sdram.S | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/kernel/arch/sh/boards/mach-ap325rxa/sdram.S b/kernel/arch/sh/boards/mach-ap325rxa/sdram.S new file mode 100644 index 000000000..db24fbed4 --- /dev/null +++ b/kernel/arch/sh/boards/mach-ap325rxa/sdram.S @@ -0,0 +1,69 @@ +/* + * AP325RXA sdram self/auto-refresh setup code + * + * Copyright (C) 2009 Magnus Damm + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#include <linux/sys.h> +#include <linux/errno.h> +#include <linux/linkage.h> +#include <asm/asm-offsets.h> +#include <asm/suspend.h> +#include <asm/romimage-macros.h> + +/* code to enter and leave self-refresh. must be self-contained. + * this code will be copied to on-chip memory and executed from there. + */ + .balign 4 +ENTRY(ap325rxa_sdram_enter_start) + + /* SBSC: disable power down and put in self-refresh mode */ + mov.l 1f, r4 + mov.l 2f, r1 + mov.l @r4, r2 + or r1, r2 + mov.l 3f, r3 + and r3, r2 + mov.l r2, @r4 + + rts + nop + + .balign 4 +1: .long 0xfe400008 /* SDCR0 */ +2: .long 0x00000400 +3: .long 0xffff7fff +ENTRY(ap325rxa_sdram_enter_end) + + .balign 4 +ENTRY(ap325rxa_sdram_leave_start) + + /* SBSC: set auto-refresh mode */ + mov.l 1f, r4 + mov.l @r4, r0 + mov.l 4f, r1 + and r1, r0 + mov.l r0, @r4 + mov.l 6f, r4 + mov.l 8f, r0 + mov.l @r4, r1 + mov #-1, r4 + add r4, r1 + or r1, r0 + mov.l 7f, r1 + mov.l r0, @r1 + + rts + nop + + .balign 4 +1: .long 0xfe400008 /* SDCR0 */ +4: .long 0xfffffbff +6: .long 0xfe40001c /* RTCOR */ +7: .long 0xfe400018 /* RTCNT */ +8: .long 0xa55a0000 +ENTRY(ap325rxa_sdram_leave_end) |