ARM: 7716/1: bcm281xx: Add L2 support for Rev A2 chips

Rev A2 SoCs have an unorthodox memory re-mapping and this needs
to be reflected in the cache operations.
This patch adds new outer cache functions for the l2x0 driver
to support this SoC revision. It also adds a new compatible
value for the cache to enable this functionality.

Updates from V1:
- remove section 1 altogether and note that in comments
- simplify section selection caused by section 1 removal
- BUG_ON just in case section 1 shows up

Signed-off-by: Christian Daudt <csd@broadcom.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 3 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/arm/l2cc.txt b/Documentation/devicetree/bindings/arm/l2cc.txt
index cbef09b5c8a7..69ddf9fad2dc 100644
--- a/Documentation/devicetree/bindings/arm/l2cc.txt
+++ b/Documentation/devicetree/bindings/arm/l2cc.txt
@@ -16,6 +16,9 @@ Required properties:
      performs the same operation).
         "marvell,"aurora-outer-cache: Marvell Controller designed to be
          compatible with the ARM one with outer cache mode.
+        "bcm,bcm11351-a2-pl310-cache": For Broadcom bcm11351 chipset where an
+        offset needs to be added to the address before passing down to the L2
+        cache controller
 - cache-unified : Specifies the cache is a unified cache.
 - cache-level : Should be set to 2 for a level 2 cache.
 - reg : Physical base address and size of cache controller's memory mapped