linux-kernel - [PATCH 9/9] bus: brcmstb_gisb: update to support new revision

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Date:   Fri, 24 Mar 2017 07:46:32 -0700
From:   Doug Berger <opendmb@...il.com>
To:     catalin.marinas@....com
Cc:     robh+dt@...nel.org, mark.rutland@....com, will.deacon@....com,
        computersforpeace@...il.com, gregory.0xf0@...il.com,
        f.fainelli@...il.com, bcm-kernel-feedback-list@...adcom.com,
        wangkefeng.wang@...wei.com, james.morse@....com,
        vladimir.murzin@....com, panand@...hat.com, andre.przywara@....com,
        cmetcalf@...lanox.com, mingo@...nel.org,
        sandeepa.s.prabhu@...il.com, shijie.huang@....com,
        linus.walleij@...aro.org, treding@...dia.com, jonathanh@...dia.com,
        olof@...om.net, mirza.krak@...il.com, suzuki.poulose@....com,
        bgolaszewski@...libre.com, horms+renesas@...ge.net.au,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, opendmb@...il.com
Subject: [PATCH 9/9] bus: brcmstb_gisb: update to support new revision

The 7278 introduces a new version of this core.  This
commit adds support for that revision.

Signed-off-by: Doug Berger <opendmb@...il.com>
---
 Documentation/devicetree/bindings/bus/brcm,gisb-arb.txt |  3 ++-
 drivers/bus/brcmstb_gisb.c                              | 10 ++++++++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/bus/brcm,gisb-arb.txt b/Documentation/devicetree/bindings/bus/brcm,gisb-arb.txt
index 1eceefb20f01..8a6c3c2e58fe 100644
--- a/Documentation/devicetree/bindings/bus/brcm,gisb-arb.txt
+++ b/Documentation/devicetree/bindings/bus/brcm,gisb-arb.txt
@@ -3,7 +3,8 @@ Broadcom GISB bus Arbiter controller
 Required properties:
 
 - compatible:
-    "brcm,gisb-arb" or "brcm,bcm7445-gisb-arb" for 28nm chips
+    "brcm,bcm7278-gisb-arb" for V7 28nm chips
+    "brcm,gisb-arb" or "brcm,bcm7445-gisb-arb" for other 28nm chips
     "brcm,bcm7435-gisb-arb" for newer 40nm chips
     "brcm,bcm7400-gisb-arb" for older 40nm chips and all 65nm chips
     "brcm,bcm7038-gisb-arb" for 130nm chips
diff --git a/drivers/bus/brcmstb_gisb.c b/drivers/bus/brcmstb_gisb.c
index 52b5d96081eb..a91c4ae63e74 100644
--- a/drivers/bus/brcmstb_gisb.c
+++ b/drivers/bus/brcmstb_gisb.c
@@ -63,6 +63,15 @@ static const int gisb_offsets_bcm7038[] = {
 	[ARB_ERR_CAP_MASTER]	= -1,
 };
 
+static const int gisb_offsets_bcm7278[] = {
+	[ARB_TIMER]		= 0x008,
+	[ARB_ERR_CAP_CLR]	= 0x7f8,
+	[ARB_ERR_CAP_HI_ADDR]	= -1,
+	[ARB_ERR_CAP_ADDR]	= 0x7e0,
+	[ARB_ERR_CAP_STATUS]	= 0x7f0,
+	[ARB_ERR_CAP_MASTER]	= 0x7f4,
+};
+
 static const int gisb_offsets_bcm7400[] = {
 	[ARB_TIMER]		= 0x00c,
 	[ARB_ERR_CAP_CLR]	= 0x0c8,
@@ -329,6 +338,7 @@ static const struct of_device_id brcmstb_gisb_arb_of_match[] = {
 	{ .compatible = "brcm,bcm7445-gisb-arb", .data = gisb_offsets_bcm7445 },
 	{ .compatible = "brcm,bcm7435-gisb-arb", .data = gisb_offsets_bcm7435 },
 	{ .compatible = "brcm,bcm7400-gisb-arb", .data = gisb_offsets_bcm7400 },
+	{ .compatible = "brcm,bcm7278-gisb-arb", .data = gisb_offsets_bcm7278 },
 	{ .compatible = "brcm,bcm7038-gisb-arb", .data = gisb_offsets_bcm7038 },
 	{ },
 };
-- 
2.12.0