[PATCH] arm64: dts: vulcan: Update PCI ranges
Florian Fainelli
f.fainelli at gmail.com
Fri Mar 11 12:16:15 PST 2016
On 27/02/16 23:37, Jayachandran C wrote:
> The PCI memory windows available in vulcan.dtsi are limited to 128MB
> for 32-bit BARs, and 4GB for 64-bit BARs. Given the memory mapped IO
> space available in arm64, these windows can be increased substantially
> to support more use cases.
>
> The change increases the 32-bit window to 256MB and the 64-bit window
> to 128 GB. The firmware on vulcan boards will use these ranges as well.
>
> PCI IO windows are not supported on Vulcan, so remove them instead of
> keeping an unused value.
>
> Signed-off-by: Jayachandran C <jchandra at broadcom.com>
> ---
>
> This is an update to the patch with subject
> "arm64: Broadcom Vulcan support"
> I had sent earlier, please fold it into that patch if possible
Arnd, I do not have any other Broadcom ARM64 DT changes for 4.6 to be
sent at the moment, do you mind taking this patch directly?
Feel free to add my:
Signed-off-by: Florian Fainelli <f.fainelli at gmail.com>
Thanks!
>
> Thanks,
> JC.
>
>
> arch/arm64/boot/dts/broadcom/vulcan.dtsi | 15 +++++++++------
> 1 file changed, 9 insertions(+), 6 deletions(-)
>
> diff --git a/arch/arm64/boot/dts/broadcom/vulcan.dtsi b/arch/arm64/boot/dts/broadcom/vulcan.dtsi
> index c49b5a8..85820e2 100644
> --- a/arch/arm64/boot/dts/broadcom/vulcan.dtsi
> +++ b/arch/arm64/boot/dts/broadcom/vulcan.dtsi
> @@ -108,12 +108,15 @@
> reg = <0x0 0x30000000 0x0 0x10000000>;
> reg-names = "PCI ECAM";
>
> - /* IO 0x4000_0000 - 0x4001_0000 */
> - ranges = <0x01000000 0 0x40000000 0 0x40000000 0 0x00010000
> - /* MEM 0x4800_0000 - 0x5000_0000 */
> - 0x02000000 0 0x48000000 0 0x48000000 0 0x08000000
> - /* MEM64 pref 0x6_0000_0000 - 0x7_0000_0000 */
> - 0x43000000 6 0x00000000 6 0x00000000 1 0x00000000>;
> + /*
> + * PCI ranges:
> + * IO no supported
> + * MEM 0x4000_0000 - 0x6000_0000
> + * MEM64 pref 0x40_0000_0000 - 0x60_0000_0000
> + */
> + ranges =
> + <0x02000000 0 0x40000000 0 0x40000000 0 0x20000000
> + 0x43000000 0x40 0x00000000 0x40 0x00000000 0x20 0x00000000>;
> interrupt-map-mask = <0 0 0 7>;
> interrupt-map =
> /* addr pin ic icaddr icintr */
>
--
Florian
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