cleaning up olpc patch 1

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@10060 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 39 insertions, 0 deletions

diff --git a/target/linux/olpc/files/arch/i386/kernel/olpc-sleep.S b/target/linux/olpc/files/arch/i386/kernel/olpc-sleep.S
new file mode 100644
index 000000000..9535c9a94
--- /dev/null
+++ b/target/linux/olpc/files/arch/i386/kernel/olpc-sleep.S
@@ -0,0 +1,39 @@
+.text
+
+ENTRY(olpc_sleep_asm)
+olpc_sleep:
+	;; Get the value of PM1_CNT and store it off
+	
+	add 08h, ax
+	mov bx,dx
+	in dx,eax
+	or 2000h, ax
+	mov ax,di
+	
+	;; flush the cache
+	wbinvd
+
+	;; GX2 must disable refresh before going into self-refresh 
+	mov 2000000180xh, ecx
+	rdmsr
+	mov eax, esi
+	and 0FF0000FFh, eax
+	wrmsr
+
+	;; Now, put  the memory into self refresh
+	mov 2004, cx
+	xor edx, edx
+	xor eax, eax
+	mov 04h, al
+	wrmsr
+
+	;; Thats all she wrote - time to go to sleep
+	
+	mov bx, dx
+	movzx di, eax
+	out eax, dx
+
+	;;  
+	
+	
+