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-rw-r--r--qemu/roms/SLOF/slof/fs/pci-scan.fs19
1 files changed, 13 insertions, 6 deletions
diff --git a/qemu/roms/SLOF/slof/fs/pci-scan.fs b/qemu/roms/SLOF/slof/fs/pci-scan.fs
index b8b9fe61f..2fdf0e8f5 100644
--- a/qemu/roms/SLOF/slof/fs/pci-scan.fs
+++ b/qemu/roms/SLOF/slof/fs/pci-scan.fs
@@ -110,10 +110,13 @@ here 100 allot CONSTANT pci-device-vec
dup 100000 + pci-next-mem ! \ and write back with 1MB for bridge
over 24 + rtas-config-w@ \ check if 64bit support
1 and IF \ IF 64 bit support
- 2dup 20 rshift \ | keep upper 32 bits
- swap 28 + rtas-config-l! \ | and write it into the Base-Upper32-bits
- pci-max-mem @ 20 rshift \ | fetch max Limit address and keep upper 32 bits
- 2 pick 2C + rtas-config-l! \ | and set the Limit
+ pci-next-mem64 @ 100000000 #aligned \ | read the current Value of 64-bit and align to 4GB boundary
+ dup 100000000 + pci-next-mem64 x! \ | and write back with 1GB for bridge
+ 2 pick swap \ |
+ 20 rshift \ | keep upper 32 bits
+ swap 28 + rtas-config-l! \ | and write it into the Base-Upper32-bits
+ pci-max-mem64 @ 20 rshift \ | fetch max Limit address and keep upper 32 bits
+ 2 pick 2C + rtas-config-l! \ | and set the Limit
THEN \ FI
10 rshift \ keep upper 16 bits
pci-max-mem @ 1- FFFF0000 and or \ and Insert mmem Limit (set it to max)
@@ -129,8 +132,12 @@ here 100 allot CONSTANT pci-device-vec
1- \ make limit one less than boundary
over 24 + rtas-config-w@ \ check if 64bit support
1 and IF \ IF 64 bit support
- 2dup 20 rshift \ | keep upper 32 bits
- swap 2C + rtas-config-l! \ | and write it into the Limit-Upper32-bits
+ pci-next-mem64 @ 100000000 #aligned \ | Reat current value of 64-bar and align at 4GB
+ dup pci-next-mem64 x! \ | and write it back
+ 1- \ | make limite one less than boundary
+ 2 pick swap \ |
+ 20 rshift \ | keep upper 32 bits
+ swap 2C + rtas-config-l! \ | and write it into the Limit-Upper32-bits
THEN \ FI
FFFF0000 and \ keep upper 16 bits
over 24 + rtas-config-l@ 0000FFFF and \ fetch original Value