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| author | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2014-05-14 16:27:51 +0530 |
|---|---|---|
| committer | Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> | 2014-05-14 16:29:40 +0530 |
| commit | e53c2541784fba7951c8aa6ccdbe4412fb03fca6 (patch) | |
| tree | 18af4f7422c7fbe2ebbaf6c7c6db96234c265f72 | |
| parent | 7cc0b6c5ce87549ba7bc396bfca1018c076a7351 (diff) | |
| download | SLOF-e53c2541784fba7951c8aa6ccdbe4412fb03fca6.zip SLOF-e53c2541784fba7951c8aa6ccdbe4412fb03fca6.tar.gz SLOF-e53c2541784fba7951c8aa6ccdbe4412fb03fca6.tar.bz2 | |
pci-scan: reserve memory for pci-bridge without devices
A pci-bridge without a downstream device will end up with no memory
range allocated. For cases like hotplug, reserve some memory for the
bridge device.
Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com>
| -rw-r--r-- | slof/fs/pci-scan.fs | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/slof/fs/pci-scan.fs b/slof/fs/pci-scan.fs index ec9bd27..7e860f4 100644 --- a/slof/fs/pci-scan.fs +++ b/slof/fs/pci-scan.fs @@ -83,7 +83,7 @@ here 100 allot CONSTANT pci-device-vec \ needed for scanning possible devices behind the bridge : pci-bridge-set-mmio-base ( addr -- ) pci-next-mmio @ 100000 #aligned \ read the current Value and align to 1MB boundary - dup pci-next-mmio ! \ and write it back + dup 100000 + pci-next-mmio ! \ and write back with 1MB for bridge 10 rshift \ mmio-base reg is only the upper 16 bits pci-max-mmio @ FFFF0000 and or \ and Insert mmio Limit (set it to max) swap 20 + rtas-config-l! \ and write it into the bridge @@ -105,7 +105,7 @@ here 100 allot CONSTANT pci-device-vec \ needed for scanning possible devices behind the bridge : pci-bridge-set-mem-base ( addr -- ) pci-next-mem @ 100000 #aligned \ read the current Value and align to 1MB boundary - dup pci-next-mem ! \ and write it back + 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 @@ -140,7 +140,7 @@ here 100 allot CONSTANT pci-device-vec \ needed for scanning possible devices behind the bridge : pci-bridge-set-io-base ( addr -- ) pci-next-io @ 1000 #aligned \ read the current Value and align to 4KB boundary - dup pci-next-io ! \ and write it back + dup 1000 + pci-next-io ! \ and write back with 4K for bridge over 1C + rtas-config-l@ \ check if 32bit support 1 and IF \ IF 32 bit support 2dup 10 rshift \ | keep upper 16 bits |