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* [PATCH v2 0/9] arm64: bcmbca: Move BCM4908 SoC support under ARCH_BCMBCA
@ 2022-07-25  5:53 William Zhang
  2022-07-25  5:53 ` [PATCH v2 1/9] dt-bindings: arm64: bcmbca: Merge BCM4908 into BCMBCA William Zhang
                   ` (8 more replies)
  0 siblings, 9 replies; 21+ messages in thread
From: William Zhang @ 2022-07-25  5:53 UTC (permalink / raw)
  To: Linux ARM List
  Cc: joel.peshkin, f.fainelli, Broadcom Kernel List, dan.beygelman,
	anand.gore, kursad.oney, rafal, krzysztof.kozlowski,
	William Zhang, Rob Herring, Krzysztof Kozlowski,
	open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS,
	open list, Philipp Zabel, open list:I2C SUBSYSTEM HOST DRIVERS,
	open list:MEMORY TECHNOLOGY DEVICES (MTD),
	open list:NETWORKING DRIVERS,
	open list:PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS,
	open list:GENERIC PHY FRAMEWORK, open list:PIN CONTROL SUBSYSTEM,
	open list:BROADCOM BMIPS MIPS ARCHITECTURE,
	open list:SERIAL DRIVERS, open list:WATCHDOG DEVICE DRIVERS,
	Catalin Marinas, Will Deacon

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BCM4908 is one of the Broadcom Broadband origin WLAN Router/Access
Pointer SoCs. It was originally added by Rafał before Broadcom started
to upstream the support for broadband SoCs. All other ARM based Broadcom
Broadband SoCs are now supported under arch ARCH_BCMBCA. This patch
series migrate the BCM4908 support to ARCH_BCMBCA.

Changes in v2:
- Add Acked-by tag
- Improve commit message with more details
- Insert the 4908 generic compatible string in alphabetical order

William Zhang (9):
  dt-bindings: arm64: bcmbca: Merge BCM4908 into BCMBCA
  dt-bindings: arm64: bcmbca: Update BCM4908 description
  arm64: dts: bcmbca: update BCM4908 board dts files
  arm64: dts: Move BCM4908 dts to bcmbca folder
  arm64: dts: Add BCM4908 generic board dts
  arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA
  arm64: bcmbca: Merge ARCH_BCM4908 to ARCH_BCMBCA
  MAINTAINERS: Add BCM4908 maintainer to BCMBCA entry
  arm64: defconfig: remove BCM4908

 .../bindings/arm/bcm/brcm,bcm4908.yaml        | 42 -------------------
 .../bindings/arm/bcm/brcm,bcmbca.yaml         | 25 +++++++++++
 MAINTAINERS                                   |  1 +
 arch/arm64/Kconfig.platforms                  | 10 +----
 arch/arm64/boot/dts/broadcom/Makefile         |  1 -
 arch/arm64/boot/dts/broadcom/bcm4908/Makefile |  5 ---
 arch/arm64/boot/dts/broadcom/bcmbca/Makefile  |  5 +++
 .../bcm4906-netgear-r8000p.dts                |  2 +-
 .../bcm4906-tplink-archer-c2300-v1.dts        |  2 +-
 .../broadcom/{bcm4908 => bcmbca}/bcm4906.dtsi |  0
 .../bcm4908-asus-gt-ac5300.dts                |  2 +-
 .../bcm4908-netgear-raxe500.dts               |  2 +-
 .../broadcom/{bcm4908 => bcmbca}/bcm4908.dtsi |  0
 .../boot/dts/broadcom/bcmbca/bcm94908.dts     | 30 +++++++++++++
 arch/arm64/configs/defconfig                  |  1 -
 drivers/i2c/busses/Kconfig                    |  4 +-
 drivers/mtd/parsers/Kconfig                   |  6 +--
 drivers/net/ethernet/broadcom/Kconfig         |  4 +-
 drivers/pci/controller/Kconfig                |  2 +-
 drivers/phy/broadcom/Kconfig                  |  4 +-
 drivers/pinctrl/bcm/Kconfig                   |  4 +-
 drivers/reset/Kconfig                         |  2 +-
 drivers/soc/bcm/bcm63xx/Kconfig               |  4 +-
 drivers/tty/serial/Kconfig                    |  4 +-
 drivers/watchdog/Kconfig                      |  2 +-
 25 files changed, 84 insertions(+), 80 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml
 delete mode 100644 arch/arm64/boot/dts/broadcom/bcm4908/Makefile
 rename arch/arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4906-netgear-r8000p.dts (96%)
 rename arch/arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4906-tplink-archer-c2300-v1.dts (99%)
 rename arch/arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4906.dtsi (100%)
 rename arch/arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4908-asus-gt-ac5300.dts (97%)
 rename arch/arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4908-netgear-raxe500.dts (89%)
 rename arch/arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4908.dtsi (100%)
 create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm94908.dts

-- 
2.34.1


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^ permalink raw reply	[flat|nested] 21+ messages in thread
* [PATCH v2 1/9] dt-bindings: arm64: bcmbca: Merge BCM4908 into BCMBCA
  2022-07-25  5:53 [PATCH v2 0/9] arm64: bcmbca: Move BCM4908 SoC support under ARCH_BCMBCA William Zhang
@ 2022-07-25  5:53 ` William Zhang
  2022-07-25 23:30   ` Rob Herring
  2022-07-25  5:53 ` [PATCH v2 2/9] dt-bindings: arm64: bcmbca: Update BCM4908 description William Zhang
                   ` (7 subsequent siblings)
  8 siblings, 1 reply; 21+ messages in thread
From: William Zhang @ 2022-07-25  5:53 UTC (permalink / raw)
  To: Linux ARM List
  Cc: joel.peshkin, f.fainelli, Broadcom Kernel List, dan.beygelman,
	anand.gore, kursad.oney, rafal, krzysztof.kozlowski,
	William Zhang, Krzysztof Kozlowski, Rob Herring, devicetree,
	linux-kernel

[-- Attachment #1: Type: text/plain, Size: 3341 bytes --]

BCM4908 is one of the Broadcom Broadband origin WLAN Router/Access
Pointer SoCs. It was originally added by Rafał before Broadcom
started to upstream the support for broadband SoCs. Now that Broadcom
Broadband SoC is supported under arch ARCH_BCMBCA, this patch moves
BCM4908 SoC device tree descriptions into BCMBCA binding.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Rafał Miłecki <rafal@milecki.pl>

---

Changes in v2:
- Add Acked-by tag
- Improve commit message with more details

 .../bindings/arm/bcm/brcm,bcm4908.yaml        | 42 -------------------
 .../bindings/arm/bcm/brcm,bcmbca.yaml         | 21 ++++++++++
 2 files changed, 21 insertions(+), 42 deletions(-)
 delete mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml

diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml
deleted file mode 100644
index 9b745531ff04..000000000000
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml
+++ /dev/null
@@ -1,42 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
-%YAML 1.2
----
-$id: http://devicetree.org/schemas/arm/bcm/brcm,bcm4908.yaml#
-$schema: http://devicetree.org/meta-schemas/core.yaml#
-
-title: Broadcom BCM4908 device tree bindings
-
-description:
-  Broadcom BCM4906 / BCM4908 / BCM49408 Wi-Fi/network SoCs with Brahma CPUs.
-
-maintainers:
-  - Rafał Miłecki <rafal@milecki.pl>
-
-properties:
-  $nodename:
-    const: '/'
-  compatible:
-    oneOf:
-      - description: BCM4906 based boards
-        items:
-          - enum:
-              - netgear,r8000p
-              - tplink,archer-c2300-v1
-          - const: brcm,bcm4906
-          - const: brcm,bcm4908
-
-      - description: BCM4908 based boards
-        items:
-          - enum:
-              - asus,gt-ac5300
-              - netgear,raxe500
-          - const: brcm,bcm4908
-
-      - description: BCM49408 based boards
-        items:
-          - const: brcm,bcm49408
-          - const: brcm,bcm4908
-
-additionalProperties: true
-
-...
diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
index 324e59104360..6a64afa95918 100644
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
@@ -15,6 +15,7 @@ maintainers:
   - William Zhang <william.zhang@broadcom.com>
   - Anand Gore <anand.gore@broadcom.com>
   - Kursad Oney <kursad.oney@broadcom.com>
+  - Rafał Miłecki <rafal@milecki.pl>
 
 properties:
   $nodename:
@@ -28,6 +29,26 @@ properties:
           - const: brcm,bcm47622
           - const: brcm,bcmbca
 
+      - description: BCM4906 based boards
+        items:
+          - enum:
+              - netgear,r8000p
+              - tplink,archer-c2300-v1
+          - const: brcm,bcm4906
+          - const: brcm,bcm4908
+
+      - description: BCM4908 based boards
+        items:
+          - enum:
+              - asus,gt-ac5300
+              - netgear,raxe500
+          - const: brcm,bcm4908
+
+      - description: BCM49408 based boards
+        items:
+          - const: brcm,bcm49408
+          - const: brcm,bcm4908
+
       - description: BCM4912 based boards
         items:
           - enum:
-- 
2.34.1


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^ permalink raw reply related	[flat|nested] 21+ messages in thread
* [PATCH v2 2/9] dt-bindings: arm64: bcmbca: Update BCM4908 description
  2022-07-25  5:53 [PATCH v2 0/9] arm64: bcmbca: Move BCM4908 SoC support under ARCH_BCMBCA William Zhang
  2022-07-25  5:53 ` [PATCH v2 1/9] dt-bindings: arm64: bcmbca: Merge BCM4908 into BCMBCA William Zhang
@ 2022-07-25  5:53 ` William Zhang
  2022-07-25 23:33   ` Rob Herring
  2022-07-25  5:53 ` [PATCH v2 3/9] arm64: dts: bcmbca: update BCM4908 board dts files William Zhang
                   ` (6 subsequent siblings)
  8 siblings, 1 reply; 21+ messages in thread
From: William Zhang @ 2022-07-25  5:53 UTC (permalink / raw)
  To: Linux ARM List
  Cc: joel.peshkin, f.fainelli, Broadcom Kernel List, dan.beygelman,
	anand.gore, kursad.oney, rafal, krzysztof.kozlowski,
	William Zhang, Krzysztof Kozlowski, Rob Herring, devicetree,
	linux-kernel

[-- Attachment #1: Type: text/plain, Size: 1650 bytes --]

Append "brcm,bcmbca" to BCM4908 chip family compatible strings to
follow the convention of BCMBCA chip and help identifying chip family.

Also add a bare bone generic 4908 board compatbile string to support any
4908 based board. This is useful for board bring-up test and kernel test
with CPU and memory related change.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Rafał Miłecki <rafal@milecki.pl>

---

Changes in v2:
- Add Acked-by tag
- Insert the 4908 generic compatible string in alphabetical order
- Update commit message with more details of 4908 generic board dts

 Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
index 6a64afa95918..84866e29cab0 100644
--- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
+++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml
@@ -36,18 +36,22 @@ properties:
               - tplink,archer-c2300-v1
           - const: brcm,bcm4906
           - const: brcm,bcm4908
+          - const: brcm,bcmbca
 
       - description: BCM4908 based boards
         items:
           - enum:
               - asus,gt-ac5300
+              - brcm,bcm94908
               - netgear,raxe500
           - const: brcm,bcm4908
+          - const: brcm,bcmbca
 
       - description: BCM49408 based boards
         items:
           - const: brcm,bcm49408
           - const: brcm,bcm4908
+          - const: brcm,bcmbca
 
       - description: BCM4912 based boards
         items:
-- 
2.34.1


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^ permalink raw reply related	[flat|nested] 21+ messages in thread
* [PATCH v2 3/9] arm64: dts: bcmbca: update BCM4908 board dts files
  2022-07-25  5:53 [PATCH v2 0/9] arm64: bcmbca: Move BCM4908 SoC support under ARCH_BCMBCA William Zhang
  2022-07-25  5:53 ` [PATCH v2 1/9] dt-bindings: arm64: bcmbca: Merge BCM4908 into BCMBCA William Zhang
  2022-07-25  5:53 ` [PATCH v2 2/9] dt-bindings: arm64: bcmbca: Update BCM4908 description William Zhang
@ 2022-07-25  5:53 ` William Zhang
  2022-07-25 23:32   ` Rob Herring
  2022-07-25  5:53 ` [PATCH v2 4/9] arm64: dts: Move BCM4908 dts to bcmbca folder William Zhang
                   ` (5 subsequent siblings)
  8 siblings, 1 reply; 21+ messages in thread
From: William Zhang @ 2022-07-25  5:53 UTC (permalink / raw)
  To: Linux ARM List
  Cc: joel.peshkin, f.fainelli, Broadcom Kernel List, dan.beygelman,
	anand.gore, kursad.oney, rafal, krzysztof.kozlowski,
	William Zhang, Krzysztof Kozlowski, Rob Herring, devicetree,
	linux-kernel

[-- Attachment #1: Type: text/plain, Size: 2973 bytes --]

Append "brcm,bcmbca" to compatible strings based on the new bcmbca
binding rule for BCM4908 family based boards. This will break drivers
that use the old compatible string for binding. Fortunately there is no
such usage in linux and u-boot.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Rafał Miłecki <rafal@milecki.pl>

---

Changes in v2:
- Add Acked-by tag

 arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts | 2 +-
 .../dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts     | 2 +-
 arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts | 2 +-
 .../arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
index 2dd028438c22..d8b60575eb4f 100644
--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
+++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
@@ -7,7 +7,7 @@
 #include "bcm4906.dtsi"
 
 / {
-	compatible = "netgear,r8000p", "brcm,bcm4906", "brcm,bcm4908";
+	compatible = "netgear,r8000p", "brcm,bcm4906", "brcm,bcm4908", "brcm,bcmbca";
 	model = "Netgear R8000P";
 
 	memory@0 {
diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts
index 064f7f549665..296393d4aaab 100644
--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts
+++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts
@@ -7,7 +7,7 @@
 #include "bcm4906.dtsi"
 
 / {
-	compatible = "tplink,archer-c2300-v1", "brcm,bcm4906", "brcm,bcm4908";
+	compatible = "tplink,archer-c2300-v1", "brcm,bcm4906", "brcm,bcm4908", "brcm,bcmbca";
 	model = "TP-Link Archer C2300 V1";
 
 	memory@0 {
diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
index 04f8524b5335..787c7ddf9102 100644
--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
+++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
@@ -6,7 +6,7 @@
 #include "bcm4908.dtsi"
 
 / {
-	compatible = "asus,gt-ac5300", "brcm,bcm4908";
+	compatible = "asus,gt-ac5300", "brcm,bcm4908", "brcm,bcmbca";
 	model = "Asus GT-AC5300";
 
 	memory@0 {
diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts
index 3c2cf2d238b6..23b96c663239 100644
--- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts
+++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts
@@ -3,7 +3,7 @@
 #include "bcm4908.dtsi"
 
 / {
-	compatible = "netgear,raxe500", "brcm,bcm4908";
+	compatible = "netgear,raxe500", "brcm,bcm4908", "brcm,bcmbca";
 	model = "Netgear RAXE500";
 
 	memory@0 {
-- 
2.34.1


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^ permalink raw reply related	[flat|nested] 21+ messages in thread
* [PATCH v2 4/9] arm64: dts: Move BCM4908 dts to bcmbca folder
  2022-07-25  5:53 [PATCH v2 0/9] arm64: bcmbca: Move BCM4908 SoC support under ARCH_BCMBCA William Zhang
                   ` (2 preceding siblings ...)
  2022-07-25  5:53 ` [PATCH v2 3/9] arm64: dts: bcmbca: update BCM4908 board dts files William Zhang
@ 2022-07-25  5:53 ` William Zhang
  2022-07-25  5:53 ` [PATCH v2 5/9] arm64: dts: Add BCM4908 generic board dts William Zhang
                   ` (4 subsequent siblings)
  8 siblings, 0 replies; 21+ messages in thread
From: William Zhang @ 2022-07-25  5:53 UTC (permalink / raw)
  To: Linux ARM List
  Cc: joel.peshkin, f.fainelli, Broadcom Kernel List, dan.beygelman,
	anand.gore, kursad.oney, rafal, krzysztof.kozlowski,
	William Zhang, Krzysztof Kozlowski, Nicolas Saenz Julienne,
	Rob Herring, Stefan Wahren, devicetree, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 4879 bytes --]

As part of ARCH_BCM4908 to ARCH_BCMBCA migration, move the BCM4908 dts
files to bcmbca folder and use CONFIG_ARCH_BCMBCA to build all the
BCM4908 board dts. Delete bcm4908 folder and its makefile as well.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
---

(no changes since v1)

 arch/arm64/boot/dts/broadcom/Makefile                        | 1 -
 arch/arm64/boot/dts/broadcom/bcm4908/Makefile                | 5 -----
 arch/arm64/boot/dts/broadcom/bcmbca/Makefile                 | 4 ++++
 .../broadcom/{bcm4908 => bcmbca}/bcm4906-netgear-r8000p.dts  | 0
 .../{bcm4908 => bcmbca}/bcm4906-tplink-archer-c2300-v1.dts   | 0
 .../arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4906.dtsi | 0
 .../broadcom/{bcm4908 => bcmbca}/bcm4908-asus-gt-ac5300.dts  | 0
 .../broadcom/{bcm4908 => bcmbca}/bcm4908-netgear-raxe500.dts | 0
 .../arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4908.dtsi | 0
 9 files changed, 4 insertions(+), 6 deletions(-)
 delete mode 100644 arch/arm64/boot/dts/broadcom/bcm4908/Makefile
 rename arch/arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4906-netgear-r8000p.dts (100%)
 rename arch/arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4906-tplink-archer-c2300-v1.dts (100%)
 rename arch/arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4906.dtsi (100%)
 rename arch/arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4908-asus-gt-ac5300.dts (100%)
 rename arch/arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4908-netgear-raxe500.dts (100%)
 rename arch/arm64/boot/dts/broadcom/{bcm4908 => bcmbca}/bcm4908.dtsi (100%)

diff --git a/arch/arm64/boot/dts/broadcom/Makefile b/arch/arm64/boot/dts/broadcom/Makefile
index e8584d3b698f..05d8c5ecf3b0 100644
--- a/arch/arm64/boot/dts/broadcom/Makefile
+++ b/arch/arm64/boot/dts/broadcom/Makefile
@@ -8,7 +8,6 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rpi-400.dtb \
 			      bcm2837-rpi-cm3-io3.dtb \
 			      bcm2837-rpi-zero-2-w.dtb
 
-subdir-y	+= bcm4908
 subdir-y	+= bcmbca
 subdir-y	+= northstar2
 subdir-y	+= stingray
diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/Makefile b/arch/arm64/boot/dts/broadcom/bcm4908/Makefile
deleted file mode 100644
index 6e364e304d4f..000000000000
--- a/arch/arm64/boot/dts/broadcom/bcm4908/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0
-dtb-$(CONFIG_ARCH_BCM4908) += bcm4906-netgear-r8000p.dtb
-dtb-$(CONFIG_ARCH_BCM4908) += bcm4906-tplink-archer-c2300-v1.dtb
-dtb-$(CONFIG_ARCH_BCM4908) += bcm4908-asus-gt-ac5300.dtb
-dtb-$(CONFIG_ARCH_BCM4908) += bcm4908-netgear-raxe500.dtb
diff --git a/arch/arm64/boot/dts/broadcom/bcmbca/Makefile b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
index 38f14307184b..d30fa75f0611 100644
--- a/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
+++ b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
@@ -1,5 +1,9 @@
 # SPDX-License-Identifier: GPL-2.0
 dtb-$(CONFIG_ARCH_BCMBCA) += \
+				bcm4906-netgear-r8000p.dtb \
+				bcm4906-tplink-archer-c2300-v1.dtb \
+				bcm4908-asus-gt-ac5300.dtb \
+				bcm4908-netgear-raxe500.dtb \
 				bcm4912-asus-gt-ax6000.dtb \
 				bcm94912.dtb \
 				bcm963158.dtb \
diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts b/arch/arm64/boot/dts/broadcom/bcmbca/bcm4906-netgear-r8000p.dts
similarity index 100%
rename from arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
rename to arch/arm64/boot/dts/broadcom/bcmbca/bcm4906-netgear-r8000p.dts
diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts b/arch/arm64/boot/dts/broadcom/bcmbca/bcm4906-tplink-archer-c2300-v1.dts
similarity index 100%
rename from arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts
rename to arch/arm64/boot/dts/broadcom/bcmbca/bcm4906-tplink-archer-c2300-v1.dts
diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906.dtsi b/arch/arm64/boot/dts/broadcom/bcmbca/bcm4906.dtsi
similarity index 100%
rename from arch/arm64/boot/dts/broadcom/bcm4908/bcm4906.dtsi
rename to arch/arm64/boot/dts/broadcom/bcmbca/bcm4906.dtsi
diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts b/arch/arm64/boot/dts/broadcom/bcmbca/bcm4908-asus-gt-ac5300.dts
similarity index 100%
rename from arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
rename to arch/arm64/boot/dts/broadcom/bcmbca/bcm4908-asus-gt-ac5300.dts
diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts b/arch/arm64/boot/dts/broadcom/bcmbca/bcm4908-netgear-raxe500.dts
similarity index 100%
rename from arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts
rename to arch/arm64/boot/dts/broadcom/bcmbca/bcm4908-netgear-raxe500.dts
diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi b/arch/arm64/boot/dts/broadcom/bcmbca/bcm4908.dtsi
similarity index 100%
rename from arch/arm64/boot/dts/broadcom/bcm4908/bcm4908.dtsi
rename to arch/arm64/boot/dts/broadcom/bcmbca/bcm4908.dtsi
-- 
2.34.1


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^ permalink raw reply related	[flat|nested] 21+ messages in thread
* [PATCH v2 5/9] arm64: dts: Add BCM4908 generic board dts
  2022-07-25  5:53 [PATCH v2 0/9] arm64: bcmbca: Move BCM4908 SoC support under ARCH_BCMBCA William Zhang
                   ` (3 preceding siblings ...)
  2022-07-25  5:53 ` [PATCH v2 4/9] arm64: dts: Move BCM4908 dts to bcmbca folder William Zhang
@ 2022-07-25  5:53 ` William Zhang
  2022-07-25  5:53 ` [PATCH v2 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA William Zhang
                   ` (3 subsequent siblings)
  8 siblings, 0 replies; 21+ messages in thread
From: William Zhang @ 2022-07-25  5:53 UTC (permalink / raw)
  To: Linux ARM List
  Cc: joel.peshkin, f.fainelli, Broadcom Kernel List, dan.beygelman,
	anand.gore, kursad.oney, rafal, krzysztof.kozlowski,
	William Zhang, Krzysztof Kozlowski, Rob Herring, devicetree,
	linux-kernel

[-- Attachment #1: Type: text/plain, Size: 1806 bytes --]

Add generic bare bone bcm94908.dts file to support any 4908 based
design. It supports cpu subsystem, memory and an uart console. This can
be useful for board bring-up and cpu subsystem and memory related kernel
test as well.

Signed-off-by: William Zhang <william.zhang@broadcom.com>

---

Changes in v2:
- Update commit message with more details

 arch/arm64/boot/dts/broadcom/bcmbca/Makefile  |  1 +
 .../boot/dts/broadcom/bcmbca/bcm94908.dts     | 30 +++++++++++++++++++
 2 files changed, 31 insertions(+)
 create mode 100644 arch/arm64/boot/dts/broadcom/bcmbca/bcm94908.dts

diff --git a/arch/arm64/boot/dts/broadcom/bcmbca/Makefile b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
index d30fa75f0611..27741b71ba9e 100644
--- a/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
+++ b/arch/arm64/boot/dts/broadcom/bcmbca/Makefile
@@ -4,6 +4,7 @@ dtb-$(CONFIG_ARCH_BCMBCA) += \
 				bcm4906-tplink-archer-c2300-v1.dtb \
 				bcm4908-asus-gt-ac5300.dtb \
 				bcm4908-netgear-raxe500.dtb \
+				bcm94908.dtb \
 				bcm4912-asus-gt-ax6000.dtb \
 				bcm94912.dtb \
 				bcm963158.dtb \
diff --git a/arch/arm64/boot/dts/broadcom/bcmbca/bcm94908.dts b/arch/arm64/boot/dts/broadcom/bcmbca/bcm94908.dts
new file mode 100644
index 000000000000..fcbd3c430ace
--- /dev/null
+++ b/arch/arm64/boot/dts/broadcom/bcmbca/bcm94908.dts
@@ -0,0 +1,30 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright 2022 Broadcom Ltd.
+ */
+
+/dts-v1/;
+
+#include "bcm4908.dtsi"
+
+/ {
+	model = "Broadcom BCM94908 Reference Board";
+	compatible = "brcm,bcm94908", "brcm,bcm4908", "brcm,bcmbca";
+
+	aliases {
+		serial0 = &uart0;
+	};
+
+	chosen {
+		stdout-path = "serial0:115200n8";
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x0 0x0 0x08000000>;
+	};
+};
+
+&uart0 {
+	status = "okay";
+};
-- 
2.34.1


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^ permalink raw reply related	[flat|nested] 21+ messages in thread
* [PATCH v2 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA
  2022-07-25  5:53 [PATCH v2 0/9] arm64: bcmbca: Move BCM4908 SoC support under ARCH_BCMBCA William Zhang
                   ` (4 preceding siblings ...)
  2022-07-25  5:53 ` [PATCH v2 5/9] arm64: dts: Add BCM4908 generic board dts William Zhang
@ 2022-07-25  5:53 ` William Zhang
  2022-07-25 17:23   ` Wolfram Sang
                     ` (2 more replies)
  2022-07-25  5:54 ` [PATCH v2 7/9] arm64: bcmbca: Merge ARCH_BCM4908 to ARCH_BCMBCA William Zhang
                   ` (2 subsequent siblings)
  8 siblings, 3 replies; 21+ messages in thread
From: William Zhang @ 2022-07-25  5:53 UTC (permalink / raw)
  To: Linux ARM List
  Cc: joel.peshkin, f.fainelli, Broadcom Kernel List, dan.beygelman,
	anand.gore, kursad.oney, rafal, krzysztof.kozlowski,
	William Zhang, Guenter Roeck, Bjorn Helgaas, Miquel Raynal,
	David S. Miller, Rob Herring, Kishon Vijay Abraham I, Vinod Koul,
	Linus Walleij, Philipp Zabel, Greg Kroah-Hartman,
	Wim Van Sebroeck, open list:I2C SUBSYSTEM HOST DRIVERS,
	open list, open list:MEMORY TECHNOLOGY DEVICES (MTD),
	open list:NETWORKING DRIVERS,
	open list:PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS,
	open list:GENERIC PHY FRAMEWORK, open list:PIN CONTROL SUBSYSTEM,
	open list:BROADCOM BMIPS MIPS ARCHITECTURE,
	open list:SERIAL DRIVERS, open list:WATCHDOG DEVICE DRIVERS

[-- Attachment #1: Type: text/plain, Size: 7506 bytes --]

With Broadcom Broadband arch ARCH_BCMBCA supported in the kernel, this
patch series migrate the ARCH_BCM4908 symbol to ARCH_BCMBCA. Hence
replace ARCH_BCM4908 with ARCH_BCMBCA in subsystem Kconfig files.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
Acked-by: Guenter Roeck <linux@roeck-us.net> (for watchdog)
Acked-by: Bjorn Helgaas <bhelgaas@google.com> (for drivers/pci)

---

Changes in v2:
- Add Acked-by tags
- Update commit message with more details

 drivers/i2c/busses/Kconfig            | 4 ++--
 drivers/mtd/parsers/Kconfig           | 6 +++---
 drivers/net/ethernet/broadcom/Kconfig | 4 ++--
 drivers/pci/controller/Kconfig        | 2 +-
 drivers/phy/broadcom/Kconfig          | 4 ++--
 drivers/pinctrl/bcm/Kconfig           | 4 ++--
 drivers/reset/Kconfig                 | 2 +-
 drivers/soc/bcm/bcm63xx/Kconfig       | 4 ++--
 drivers/tty/serial/Kconfig            | 4 ++--
 drivers/watchdog/Kconfig              | 2 +-
 10 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 45a4e9f1b639..fd9a4dd01997 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -487,8 +487,8 @@ config I2C_BCM_KONA
 
 config I2C_BRCMSTB
 	tristate "BRCM Settop/DSL I2C controller"
-	depends on ARCH_BCM2835 || ARCH_BCM4908 || ARCH_BCMBCA || \
-		   ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
+	depends on ARCH_BCM2835 || ARCH_BCMBCA || ARCH_BRCMSTB || \
+		   BMIPS_GENERIC || COMPILE_TEST
 	default y
 	help
 	  If you say yes to this option, support will be included for the
diff --git a/drivers/mtd/parsers/Kconfig b/drivers/mtd/parsers/Kconfig
index b43df73927a0..d6db655a1d24 100644
--- a/drivers/mtd/parsers/Kconfig
+++ b/drivers/mtd/parsers/Kconfig
@@ -69,8 +69,8 @@ config MTD_OF_PARTS
 
 config MTD_OF_PARTS_BCM4908
 	bool "BCM4908 partitioning support"
-	depends on MTD_OF_PARTS && (ARCH_BCM4908 || COMPILE_TEST)
-	default ARCH_BCM4908
+	depends on MTD_OF_PARTS && (ARCH_BCMBCA || COMPILE_TEST)
+	default ARCH_BCMBCA
 	help
 	  This provides partitions parser for BCM4908 family devices
 	  that can have multiple "firmware" partitions. It takes care of
@@ -78,7 +78,7 @@ config MTD_OF_PARTS_BCM4908
 
 config MTD_OF_PARTS_LINKSYS_NS
 	bool "Linksys Northstar partitioning support"
-	depends on MTD_OF_PARTS && (ARCH_BCM_5301X || ARCH_BCM4908 || COMPILE_TEST)
+	depends on MTD_OF_PARTS && (ARCH_BCM_5301X || ARCH_BCMBCA || COMPILE_TEST)
 	default ARCH_BCM_5301X
 	help
 	  This provides partitions parser for Linksys devices based on Broadcom
diff --git a/drivers/net/ethernet/broadcom/Kconfig b/drivers/net/ethernet/broadcom/Kconfig
index 56e0fb07aec7..f4e1ca68d831 100644
--- a/drivers/net/ethernet/broadcom/Kconfig
+++ b/drivers/net/ethernet/broadcom/Kconfig
@@ -53,8 +53,8 @@ config B44_PCI
 
 config BCM4908_ENET
 	tristate "Broadcom BCM4908 internal mac support"
-	depends on ARCH_BCM4908 || COMPILE_TEST
-	default y if ARCH_BCM4908
+	depends on ARCH_BCMBCA || COMPILE_TEST
+	default y if ARCH_BCMBCA
 	help
 	  This driver supports Ethernet controller integrated into Broadcom
 	  BCM4908 family SoCs.
diff --git a/drivers/pci/controller/Kconfig b/drivers/pci/controller/Kconfig
index d1c5fcf00a8a..bfd9bac37e24 100644
--- a/drivers/pci/controller/Kconfig
+++ b/drivers/pci/controller/Kconfig
@@ -274,7 +274,7 @@ config VMD
 
 config PCIE_BRCMSTB
 	tristate "Broadcom Brcmstb PCIe host controller"
-	depends on ARCH_BRCMSTB || ARCH_BCM2835 || ARCH_BCM4908 || \
+	depends on ARCH_BRCMSTB || ARCH_BCM2835 || ARCH_BCMBCA || \
 		   BMIPS_GENERIC || COMPILE_TEST
 	depends on OF
 	depends on PCI_MSI_IRQ_DOMAIN
diff --git a/drivers/phy/broadcom/Kconfig b/drivers/phy/broadcom/Kconfig
index 93a6a8ee4716..1d89a2fd9b79 100644
--- a/drivers/phy/broadcom/Kconfig
+++ b/drivers/phy/broadcom/Kconfig
@@ -93,11 +93,11 @@ config PHY_BRCM_SATA
 
 config PHY_BRCM_USB
 	tristate "Broadcom STB USB PHY driver"
-	depends on ARCH_BCM4908 || ARCH_BRCMSTB || COMPILE_TEST
+	depends on ARCH_BCMBCA || ARCH_BRCMSTB || COMPILE_TEST
 	depends on OF
 	select GENERIC_PHY
 	select SOC_BRCMSTB if ARCH_BRCMSTB
-	default ARCH_BCM4908 || ARCH_BRCMSTB
+	default ARCH_BCMBCA || ARCH_BRCMSTB
 	help
 	  Enable this to support the Broadcom STB USB PHY.
 	  This driver is required by the USB XHCI, EHCI and OHCI
diff --git a/drivers/pinctrl/bcm/Kconfig b/drivers/pinctrl/bcm/Kconfig
index 8f4d89806fcb..35b51ce4298e 100644
--- a/drivers/pinctrl/bcm/Kconfig
+++ b/drivers/pinctrl/bcm/Kconfig
@@ -31,13 +31,13 @@ config PINCTRL_BCM2835
 
 config PINCTRL_BCM4908
 	tristate "Broadcom BCM4908 pinmux driver"
-	depends on OF && (ARCH_BCM4908 || COMPILE_TEST)
+	depends on OF && (ARCH_BCMBCA || COMPILE_TEST)
 	select PINMUX
 	select PINCONF
 	select GENERIC_PINCONF
 	select GENERIC_PINCTRL_GROUPS
 	select GENERIC_PINMUX_FUNCTIONS
-	default ARCH_BCM4908
+	default ARCH_BCMBCA
 	help
 	  Driver for BCM4908 family SoCs with integrated pin controller.
 
diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
index f9a7cee01659..7ae71535fe2a 100644
--- a/drivers/reset/Kconfig
+++ b/drivers/reset/Kconfig
@@ -201,7 +201,7 @@ config RESET_SCMI
 
 config RESET_SIMPLE
 	bool "Simple Reset Controller Driver" if COMPILE_TEST || EXPERT
-	default ARCH_ASPEED || ARCH_BCM4908 || ARCH_BITMAIN || ARCH_REALTEK || ARCH_STM32 || (ARCH_INTEL_SOCFPGA && ARM64) || ARCH_SUNXI || ARC
+	default ARCH_ASPEED || ARCH_BCMBCA || ARCH_BITMAIN || ARCH_REALTEK || ARCH_STM32 || (ARCH_INTEL_SOCFPGA && ARM64) || ARCH_SUNXI || ARC
 	help
 	  This enables a simple reset controller driver for reset lines that
 	  that can be asserted and deasserted by toggling bits in a contiguous,
diff --git a/drivers/soc/bcm/bcm63xx/Kconfig b/drivers/soc/bcm/bcm63xx/Kconfig
index 9e501c8ac5ce..355c34482076 100644
--- a/drivers/soc/bcm/bcm63xx/Kconfig
+++ b/drivers/soc/bcm/bcm63xx/Kconfig
@@ -13,8 +13,8 @@ endif # SOC_BCM63XX
 
 config BCM_PMB
 	bool "Broadcom PMB (Power Management Bus) driver"
-	depends on ARCH_BCM4908 || (COMPILE_TEST && OF)
-	default ARCH_BCM4908
+	depends on ARCH_BCMBCA || (COMPILE_TEST && OF)
+	default ARCH_BCMBCA
 	select PM_GENERIC_DOMAINS if PM
 	help
 	  This enables support for the Broadcom's PMB (Power Management Bus) that
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index e3279544b03c..f32bb01c3feb 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -1100,8 +1100,8 @@ config SERIAL_TIMBERDALE
 config SERIAL_BCM63XX
 	tristate "Broadcom BCM63xx/BCM33xx UART support"
 	select SERIAL_CORE
-	depends on ARCH_BCM4908 || ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC || COMPILE_TEST
-	default ARCH_BCM4908 || ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC
+	depends on ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC || COMPILE_TEST
+	default ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC
 	help
 	  This enables the driver for the onchip UART core found on
 	  the following chipsets:
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 32fd37698932..1f85ec8a4b3b 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -1798,7 +1798,7 @@ config BCM7038_WDT
 	tristate "BCM63xx/BCM7038 Watchdog"
 	select WATCHDOG_CORE
 	depends on HAS_IOMEM
-	depends on ARCH_BCM4908 || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST
+	depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST
 	help
 	  Watchdog driver for the built-in hardware in Broadcom 7038 and
 	  later SoCs used in set-top boxes.  BCM7038 was made public
-- 
2.34.1


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^ permalink raw reply related	[flat|nested] 21+ messages in thread
* [PATCH v2 7/9] arm64: bcmbca: Merge ARCH_BCM4908 to ARCH_BCMBCA
  2022-07-25  5:53 [PATCH v2 0/9] arm64: bcmbca: Move BCM4908 SoC support under ARCH_BCMBCA William Zhang
                   ` (5 preceding siblings ...)
  2022-07-25  5:53 ` [PATCH v2 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA William Zhang
@ 2022-07-25  5:54 ` William Zhang
  2022-07-25  5:54 ` [PATCH v2 8/9] MAINTAINERS: Add BCM4908 maintainer to BCMBCA entry William Zhang
  2022-07-25  5:54 ` [PATCH v2 9/9] arm64: defconfig: remove BCM4908 William Zhang
  8 siblings, 0 replies; 21+ messages in thread
From: William Zhang @ 2022-07-25  5:54 UTC (permalink / raw)
  To: Linux ARM List
  Cc: joel.peshkin, f.fainelli, Broadcom Kernel List, dan.beygelman,
	anand.gore, kursad.oney, rafal, krzysztof.kozlowski,
	William Zhang, Catalin Marinas, Will Deacon, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 1247 bytes --]

Delete ARCH_BCM4908 platform Kconfig for BCM4908 SoC as it is replaced
by ARCH_BCMBCA and move its selection to ARCH_BCMBCA.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
---

(no changes since v1)

 arch/arm64/Kconfig.platforms | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/arch/arm64/Kconfig.platforms b/arch/arm64/Kconfig.platforms
index e2700db35701..6124349b9b2d 100644
--- a/arch/arm64/Kconfig.platforms
+++ b/arch/arm64/Kconfig.platforms
@@ -47,15 +47,6 @@ config ARCH_BCM2835
 	  This enables support for the Broadcom BCM2837 and BCM2711 SoC.
 	  These SoCs are used in the Raspberry Pi 3 and 4 devices.
 
-config ARCH_BCM4908
-	bool "Broadcom BCM4908 family"
-	select ARCH_BCMBCA
-	select GPIOLIB
-	help
-	  This enables support for the Broadcom BCM4906, BCM4908 and
-	  BCM49408 SoCs. These SoCs use Brahma-B53 cores and can be
-	  found in home routers.
-
 config ARCH_BCM_IPROC
 	bool "Broadcom iProc SoC Family"
 	select COMMON_CLK_IPROC
@@ -66,6 +57,7 @@ config ARCH_BCM_IPROC
 
 config ARCH_BCMBCA
 	bool "Broadcom Broadband Carrier Access (BCA) origin SoC"
+	select GPIOLIB
 	help
 	  Say Y if you intend to run the kernel on a Broadcom Broadband ARM-based
 	  BCA chipset.
-- 
2.34.1


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^ permalink raw reply related	[flat|nested] 21+ messages in thread
* [PATCH v2 8/9] MAINTAINERS: Add BCM4908 maintainer to BCMBCA entry
  2022-07-25  5:53 [PATCH v2 0/9] arm64: bcmbca: Move BCM4908 SoC support under ARCH_BCMBCA William Zhang
                   ` (6 preceding siblings ...)
  2022-07-25  5:54 ` [PATCH v2 7/9] arm64: bcmbca: Merge ARCH_BCM4908 to ARCH_BCMBCA William Zhang
@ 2022-07-25  5:54 ` William Zhang
  2022-07-25  5:54 ` [PATCH v2 9/9] arm64: defconfig: remove BCM4908 William Zhang
  8 siblings, 0 replies; 21+ messages in thread
From: William Zhang @ 2022-07-25  5:54 UTC (permalink / raw)
  To: Linux ARM List
  Cc: joel.peshkin, f.fainelli, Broadcom Kernel List, dan.beygelman,
	anand.gore, kursad.oney, rafal, krzysztof.kozlowski,
	William Zhang, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 780 bytes --]

Since BCM4908 SoC support is merged into ARCH_BCMBCA, add BCM4908
maintainer Rafal to bcmbca maintainer list.

Signed-off-by: William Zhang <william.zhang@broadcom.com>
---

(no changes since v1)

 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 87e7467d8097..bcc508f4e6c7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3919,6 +3919,7 @@ M:	William Zhang <william.zhang@broadcom.com>
 M:	Anand Gore <anand.gore@broadcom.com>
 M:	Kursad Oney <kursad.oney@broadcom.com>
 M:	Florian Fainelli <f.fainelli@gmail.com>
+M:	Rafał Miłecki <rafal@milecki.pl>
 R:	Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
-- 
2.34.1


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^ permalink raw reply related	[flat|nested] 21+ messages in thread
* [PATCH v2 9/9] arm64: defconfig: remove BCM4908
  2022-07-25  5:53 [PATCH v2 0/9] arm64: bcmbca: Move BCM4908 SoC support under ARCH_BCMBCA William Zhang
                   ` (7 preceding siblings ...)
  2022-07-25  5:54 ` [PATCH v2 8/9] MAINTAINERS: Add BCM4908 maintainer to BCMBCA entry William Zhang
@ 2022-07-25  5:54 ` William Zhang
  8 siblings, 0 replies; 21+ messages in thread
From: William Zhang @ 2022-07-25  5:54 UTC (permalink / raw)
  To: Linux ARM List
  Cc: joel.peshkin, f.fainelli, Broadcom Kernel List, dan.beygelman,
	anand.gore, kursad.oney, rafal, krzysztof.kozlowski,
	William Zhang, Biju Das, Bjorn Andersson, Catalin Marinas,
	Dmitry Baryshkov, Geert Uytterhoeven, Marcel Ziswiler, Shawn Guo,
	Vinod Koul, Will Deacon, linux-kernel

[-- Attachment #1: Type: text/plain, Size: 617 bytes --]

Remove CONFIG_ARCH_BCM4908. It is supported under CONFIG_ARCH_BCMBCA.

Signed-off-by: William Zhang <william.zhang@broadcom.com>

---

(no changes since v1)

 arch/arm64/configs/defconfig | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
index 84b203877f91..d0e89702a4da 100644
--- a/arch/arm64/configs/defconfig
+++ b/arch/arm64/configs/defconfig
@@ -35,7 +35,6 @@ CONFIG_ARCH_SUNXI=y
 CONFIG_ARCH_ALPINE=y
 CONFIG_ARCH_APPLE=y
 CONFIG_ARCH_BCM2835=y
-CONFIG_ARCH_BCM4908=y
 CONFIG_ARCH_BCMBCA=y
 CONFIG_ARCH_BCM_IPROC=y
 CONFIG_ARCH_BERLIN=y
-- 
2.34.1


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^ permalink raw reply related	[flat|nested] 21+ messages in thread
* Re: [PATCH v2 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA
  2022-07-25  5:53 ` [PATCH v2 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA William Zhang
@ 2022-07-25 17:23   ` Wolfram Sang
  2022-07-26  8:28   ` Philipp Zabel
  2022-07-27 12:31   ` Rafał Miłecki
  2 siblings, 0 replies; 21+ messages in thread
From: Wolfram Sang @ 2022-07-25 17:23 UTC (permalink / raw)
  To: William Zhang
  Cc: Linux ARM List, joel.peshkin, f.fainelli, Broadcom Kernel List,
	dan.beygelman, anand.gore, kursad.oney, rafal,
	krzysztof.kozlowski, Guenter Roeck, Bjorn Helgaas, Miquel Raynal,
	David S. Miller, Rob Herring, Kishon Vijay Abraham I, Vinod Koul,
	Linus Walleij, Philipp Zabel, Greg Kroah-Hartman,
	Wim Van Sebroeck, open list:I2C SUBSYSTEM HOST DRIVERS,
	open list, open list:MEMORY TECHNOLOGY DEVICES (MTD),
	open list:NETWORKING DRIVERS,
	open list:PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS,
	open list:GENERIC PHY FRAMEWORK, open list:PIN CONTROL SUBSYSTEM,
	open list:BROADCOM BMIPS MIPS ARCHITECTURE,
	open list:SERIAL DRIVERS, open list:WATCHDOG DEVICE DRIVERS

[-- Attachment #1: Type: text/plain, Size: 531 bytes --]

On Sun, Jul 24, 2022 at 10:53:59PM -0700, William Zhang wrote:
> With Broadcom Broadband arch ARCH_BCMBCA supported in the kernel, this
> patch series migrate the ARCH_BCM4908 symbol to ARCH_BCMBCA. Hence
> replace ARCH_BCM4908 with ARCH_BCMBCA in subsystem Kconfig files.
> 
> Signed-off-by: William Zhang <william.zhang@broadcom.com>
> Acked-by: Guenter Roeck <linux@roeck-us.net> (for watchdog)
> Acked-by: Bjorn Helgaas <bhelgaas@google.com> (for drivers/pci)
> 

Acked-by: Wolfram Sang <wsa@kernel.org> (for i2c)


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^ permalink raw reply	[flat|nested] 21+ messages in thread
* Re: [PATCH v2 1/9] dt-bindings: arm64: bcmbca: Merge BCM4908 into BCMBCA
  2022-07-25  5:53 ` [PATCH v2 1/9] dt-bindings: arm64: bcmbca: Merge BCM4908 into BCMBCA William Zhang
@ 2022-07-25 23:30   ` Rob Herring
  0 siblings, 0 replies; 21+ messages in thread
From: Rob Herring @ 2022-07-25 23:30 UTC (permalink / raw)
  To: William Zhang
  Cc: Broadcom Kernel List, Linux ARM List, linux-kernel,
	dan.beygelman, Rob Herring, joel.peshkin, f.fainelli,
	Krzysztof Kozlowski, anand.gore, krzysztof.kozlowski, rafal,
	kursad.oney, devicetree

On Sun, 24 Jul 2022 22:53:54 -0700, William Zhang wrote:
> BCM4908 is one of the Broadcom Broadband origin WLAN Router/Access
> Pointer SoCs. It was originally added by Rafał before Broadcom
> started to upstream the support for broadband SoCs. Now that Broadcom
> Broadband SoC is supported under arch ARCH_BCMBCA, this patch moves
> BCM4908 SoC device tree descriptions into BCMBCA binding.
> 
> Signed-off-by: William Zhang <william.zhang@broadcom.com>
> Acked-by: Rafał Miłecki <rafal@milecki.pl>
> 
> ---
> 
> Changes in v2:
> - Add Acked-by tag
> - Improve commit message with more details
> 
>  .../bindings/arm/bcm/brcm,bcm4908.yaml        | 42 -------------------
>  .../bindings/arm/bcm/brcm,bcmbca.yaml         | 21 ++++++++++
>  2 files changed, 21 insertions(+), 42 deletions(-)
>  delete mode 100644 Documentation/devicetree/bindings/arm/bcm/brcm,bcm4908.yaml
> 

Reviewed-by: Rob Herring <robh@kernel.org>

^ permalink raw reply	[flat|nested] 21+ messages in thread
* Re: [PATCH v2 3/9] arm64: dts: bcmbca: update BCM4908 board dts files
  2022-07-25  5:53 ` [PATCH v2 3/9] arm64: dts: bcmbca: update BCM4908 board dts files William Zhang
@ 2022-07-25 23:32   ` Rob Herring
  2022-07-26  1:09     ` William Zhang
  0 siblings, 1 reply; 21+ messages in thread
From: Rob Herring @ 2022-07-25 23:32 UTC (permalink / raw)
  To: William Zhang
  Cc: Linux ARM List, joel.peshkin, f.fainelli, Broadcom Kernel List,
	dan.beygelman, anand.gore, kursad.oney, rafal,
	krzysztof.kozlowski, Krzysztof Kozlowski, devicetree,
	linux-kernel

On Sun, Jul 24, 2022 at 10:53:56PM -0700, William Zhang wrote:
> Append "brcm,bcmbca" to compatible strings based on the new bcmbca
> binding rule for BCM4908 family based boards. This will break drivers
> that use the old compatible string for binding. Fortunately there is no
> such usage in linux and u-boot.

How does adding an additional compatible break things?

> 
> Signed-off-by: William Zhang <william.zhang@broadcom.com>
> Acked-by: Rafał Miłecki <rafal@milecki.pl>
> 
> ---
> 
> Changes in v2:
> - Add Acked-by tag
> 
>  arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts | 2 +-
>  .../dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts     | 2 +-
>  arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts | 2 +-
>  .../arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts | 2 +-
>  4 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
> index 2dd028438c22..d8b60575eb4f 100644
> --- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
> +++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
> @@ -7,7 +7,7 @@
>  #include "bcm4906.dtsi"
>  
>  / {
> -	compatible = "netgear,r8000p", "brcm,bcm4906", "brcm,bcm4908";
> +	compatible = "netgear,r8000p", "brcm,bcm4906", "brcm,bcm4908", "brcm,bcmbca";
>  	model = "Netgear R8000P";
>  
>  	memory@0 {
> diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts
> index 064f7f549665..296393d4aaab 100644
> --- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts
> +++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts
> @@ -7,7 +7,7 @@
>  #include "bcm4906.dtsi"
>  
>  / {
> -	compatible = "tplink,archer-c2300-v1", "brcm,bcm4906", "brcm,bcm4908";
> +	compatible = "tplink,archer-c2300-v1", "brcm,bcm4906", "brcm,bcm4908", "brcm,bcmbca";
>  	model = "TP-Link Archer C2300 V1";
>  
>  	memory@0 {
> diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
> index 04f8524b5335..787c7ddf9102 100644
> --- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
> +++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
> @@ -6,7 +6,7 @@
>  #include "bcm4908.dtsi"
>  
>  / {
> -	compatible = "asus,gt-ac5300", "brcm,bcm4908";
> +	compatible = "asus,gt-ac5300", "brcm,bcm4908", "brcm,bcmbca";
>  	model = "Asus GT-AC5300";
>  
>  	memory@0 {
> diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts
> index 3c2cf2d238b6..23b96c663239 100644
> --- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts
> +++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts
> @@ -3,7 +3,7 @@
>  #include "bcm4908.dtsi"
>  
>  / {
> -	compatible = "netgear,raxe500", "brcm,bcm4908";
> +	compatible = "netgear,raxe500", "brcm,bcm4908", "brcm,bcmbca";
>  	model = "Netgear RAXE500";
>  
>  	memory@0 {
> -- 
> 2.34.1
> 



^ permalink raw reply	[flat|nested] 21+ messages in thread
* Re: [PATCH v2 2/9] dt-bindings: arm64: bcmbca: Update BCM4908 description
  2022-07-25  5:53 ` [PATCH v2 2/9] dt-bindings: arm64: bcmbca: Update BCM4908 description William Zhang
@ 2022-07-25 23:33   ` Rob Herring
  0 siblings, 0 replies; 21+ messages in thread
From: Rob Herring @ 2022-07-25 23:33 UTC (permalink / raw)
  To: William Zhang
  Cc: Rob Herring, rafal, Broadcom Kernel List, linux-kernel,
	anand.gore, Linux ARM List, f.fainelli, kursad.oney,
	krzysztof.kozlowski, joel.peshkin, Krzysztof Kozlowski,
	dan.beygelman, devicetree

On Sun, 24 Jul 2022 22:53:55 -0700, William Zhang wrote:
> Append "brcm,bcmbca" to BCM4908 chip family compatible strings to
> follow the convention of BCMBCA chip and help identifying chip family.
> 
> Also add a bare bone generic 4908 board compatbile string to support any
> 4908 based board. This is useful for board bring-up test and kernel test
> with CPU and memory related change.
> 
> Signed-off-by: William Zhang <william.zhang@broadcom.com>
> Acked-by: Rafał Miłecki <rafal@milecki.pl>
> 
> ---
> 
> Changes in v2:
> - Add Acked-by tag
> - Insert the 4908 generic compatible string in alphabetical order
> - Update commit message with more details of 4908 generic board dts
> 
>  Documentation/devicetree/bindings/arm/bcm/brcm,bcmbca.yaml | 4 ++++
>  1 file changed, 4 insertions(+)
> 

Acked-by: Rob Herring <robh@kernel.org>

^ permalink raw reply	[flat|nested] 21+ messages in thread
* Re: [PATCH v2 3/9] arm64: dts: bcmbca: update BCM4908 board dts files
  2022-07-25 23:32   ` Rob Herring
@ 2022-07-26  1:09     ` William Zhang
  2022-07-27 10:39       ` Rafał Miłecki
  0 siblings, 1 reply; 21+ messages in thread
From: William Zhang @ 2022-07-26  1:09 UTC (permalink / raw)
  To: Rob Herring
  Cc: Linux ARM List, joel.peshkin, f.fainelli, Broadcom Kernel List,
	dan.beygelman, anand.gore, kursad.oney, rafal,
	krzysztof.kozlowski, Krzysztof Kozlowski, devicetree,
	linux-kernel

[-- Attachment #1: Type: text/plain, Size: 3755 bytes --]

Hi Rob,

On 07/25/2022 04:32 PM, Rob Herring wrote:
> On Sun, Jul 24, 2022 at 10:53:56PM -0700, William Zhang wrote:
>> Append "brcm,bcmbca" to compatible strings based on the new bcmbca
>> binding rule for BCM4908 family based boards. This will break drivers
>> that use the old compatible string for binding. Fortunately there is no
>> such usage in linux and u-boot.
> 
> How does adding an additional compatible break things?
> In theory when some crazy code tries to match the entire string. But not 
in linux, u-boot code and hopefully not in other bootloader and Os does 
that. But this does change an existing compatible string so Krzysztof 
suggested to add comment about the breakage in the commit message. I can 
remove this and send v3 if you guys think it is necessary.

>>
>> Signed-off-by: William Zhang <william.zhang@broadcom.com>
>> Acked-by: Rafał Miłecki <rafal@milecki.pl>
>>
>> ---
>>
>> Changes in v2:
>> - Add Acked-by tag
>>
>>   arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts | 2 +-
>>   .../dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts     | 2 +-
>>   arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts | 2 +-
>>   .../arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts | 2 +-
>>   4 files changed, 4 insertions(+), 4 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
>> index 2dd028438c22..d8b60575eb4f 100644
>> --- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
>> +++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-netgear-r8000p.dts
>> @@ -7,7 +7,7 @@
>>   #include "bcm4906.dtsi"
>>   
>>   / {
>> -	compatible = "netgear,r8000p", "brcm,bcm4906", "brcm,bcm4908";
>> +	compatible = "netgear,r8000p", "brcm,bcm4906", "brcm,bcm4908", "brcm,bcmbca";
>>   	model = "Netgear R8000P";
>>   
>>   	memory@0 {
>> diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts
>> index 064f7f549665..296393d4aaab 100644
>> --- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts
>> +++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4906-tplink-archer-c2300-v1.dts
>> @@ -7,7 +7,7 @@
>>   #include "bcm4906.dtsi"
>>   
>>   / {
>> -	compatible = "tplink,archer-c2300-v1", "brcm,bcm4906", "brcm,bcm4908";
>> +	compatible = "tplink,archer-c2300-v1", "brcm,bcm4906", "brcm,bcm4908", "brcm,bcmbca";
>>   	model = "TP-Link Archer C2300 V1";
>>   
>>   	memory@0 {
>> diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
>> index 04f8524b5335..787c7ddf9102 100644
>> --- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
>> +++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-asus-gt-ac5300.dts
>> @@ -6,7 +6,7 @@
>>   #include "bcm4908.dtsi"
>>   
>>   / {
>> -	compatible = "asus,gt-ac5300", "brcm,bcm4908";
>> +	compatible = "asus,gt-ac5300", "brcm,bcm4908", "brcm,bcmbca";
>>   	model = "Asus GT-AC5300";
>>   
>>   	memory@0 {
>> diff --git a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts
>> index 3c2cf2d238b6..23b96c663239 100644
>> --- a/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts
>> +++ b/arch/arm64/boot/dts/broadcom/bcm4908/bcm4908-netgear-raxe500.dts
>> @@ -3,7 +3,7 @@
>>   #include "bcm4908.dtsi"
>>   
>>   / {
>> -	compatible = "netgear,raxe500", "brcm,bcm4908";
>> +	compatible = "netgear,raxe500", "brcm,bcm4908", "brcm,bcmbca";
>>   	model = "Netgear RAXE500";
>>   
>>   	memory@0 {
>> -- 
>> 2.34.1
>>
> 
> 

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^ permalink raw reply	[flat|nested] 21+ messages in thread
* Re: [PATCH v2 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA
  2022-07-25  5:53 ` [PATCH v2 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA William Zhang
  2022-07-25 17:23   ` Wolfram Sang
@ 2022-07-26  8:28   ` Philipp Zabel
  2022-07-26  9:59     ` Vanessa Page
  2022-07-27 12:31   ` Rafał Miłecki
  2 siblings, 1 reply; 21+ messages in thread
From: Philipp Zabel @ 2022-07-26  8:28 UTC (permalink / raw)
  To: William Zhang, Linux ARM List
  Cc: joel.peshkin, f.fainelli, Broadcom Kernel List, dan.beygelman,
	anand.gore, kursad.oney, rafal, krzysztof.kozlowski,
	Guenter Roeck, Bjorn Helgaas, Miquel Raynal, David S. Miller,
	Rob Herring, Kishon Vijay Abraham I, Vinod Koul, Linus Walleij,
	Greg Kroah-Hartman, Wim Van Sebroeck,
	open list:I2C SUBSYSTEM HOST DRIVERS, open list,
	open list:MEMORY TECHNOLOGY DEVICES (MTD),
	open list:NETWORKING DRIVERS,
	open list:PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS,
	open list:GENERIC PHY FRAMEWORK, open list:PIN CONTROL SUBSYSTEM,
	open list:BROADCOM BMIPS MIPS ARCHITECTURE,
	open list:SERIAL DRIVERS, open list:WATCHDOG DEVICE DRIVERS

On So, 2022-07-24 at 22:53 -0700, William Zhang wrote:
> With Broadcom Broadband arch ARCH_BCMBCA supported in the kernel, this
> patch series migrate the ARCH_BCM4908 symbol to ARCH_BCMBCA. Hence
> replace ARCH_BCM4908 with ARCH_BCMBCA in subsystem Kconfig files.
> 
> Signed-off-by: William Zhang <william.zhang@broadcom.com>
> Acked-by: Guenter Roeck <linux@roeck-us.net> (for watchdog)
> Acked-by: Bjorn Helgaas <bhelgaas@google.com> (for drivers/pci)

Acked-by: Philipp Zabel <p.zabel@pengutronix.de> (for reset)

regards
Philipp

^ permalink raw reply	[flat|nested] 21+ messages in thread
* Re: [PATCH v2 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA
  2022-07-26  8:28   ` Philipp Zabel
@ 2022-07-26  9:59     ` Vanessa Page
  0 siblings, 0 replies; 21+ messages in thread
From: Vanessa Page @ 2022-07-26  9:59 UTC (permalink / raw)
  To: Philipp Zabel
  Cc: William Zhang, Linux ARM List, joel.peshkin, f.fainelli,
	Broadcom Kernel List, dan.beygelman, anand.gore, kursad.oney,
	rafal, krzysztof.kozlowski, Guenter Roeck, Bjorn Helgaas,
	Miquel Raynal, David S. Miller, Rob Herring,
	Kishon Vijay Abraham I, Vinod Koul, Linus Walleij,
	Greg Kroah-Hartman, Wim Van Sebroeck,
	open list:I2C SUBSYSTEM HOST DRIVERS, open list,
	open list:MEMORY TECHNOLOGY DEVICES (MTD),
	open list:NETWORKING DRIVERS,
	open list:PCI NATIVE HOST BRIDGE AND ENDPOINT DRIVERS,
	open list:GENERIC PHY FRAMEWORK, open list:PIN CONTROL SUBSYSTEM,
	open list:BROADCOM BMIPS MIPS ARCHITECTURE,
	open list:SERIAL DRIVERS, open list:WATCHDOG DEVICE DRIVERS

This is stupid 

Sent from my iPhone

> On Jul 26, 2022, at 4:31 AM, Philipp Zabel <p.zabel@pengutronix.de> wrote:
> 
> On So, 2022-07-24 at 22:53 -0700, William Zhang wrote:
>> With Broadcom Broadband arch ARCH_BCMBCA supported in the kernel, this
>> patch series migrate the ARCH_BCM4908 symbol to ARCH_BCMBCA. Hence
>> replace ARCH_BCM4908 with ARCH_BCMBCA in subsystem Kconfig files.
>> 
>> Signed-off-by: William Zhang <william.zhang@broadcom.com>
>> Acked-by: Guenter Roeck <linux@roeck-us.net> (for watchdog)
>> Acked-by: Bjorn Helgaas <bhelgaas@google.com> (for drivers/pci)
> 
> Acked-by: Philipp Zabel <p.zabel@pengutronix.de> (for reset)
> 
> regards
> Philipp
> 
> ______________________________________________________
> Linux MTD discussion mailing list
> http://lists.infradead.org/mailman/listinfo/linux-mtd/

^ permalink raw reply	[flat|nested] 21+ messages in thread
* Re: [PATCH v2 3/9] arm64: dts: bcmbca: update BCM4908 board dts files
  2022-07-26  1:09     ` William Zhang
@ 2022-07-27 10:39       ` Rafał Miłecki
  2022-07-27 12:12         ` Krzysztof Kozlowski
  0 siblings, 1 reply; 21+ messages in thread
From: Rafał Miłecki @ 2022-07-27 10:39 UTC (permalink / raw)
  To: William Zhang
  Cc: Rob Herring, Linux ARM List, joel.peshkin, f.fainelli,
	Broadcom Kernel List, dan.beygelman, anand.gore, kursad.oney,
	krzysztof.kozlowski, Krzysztof Kozlowski, devicetree,
	linux-kernel

On 2022-07-26 03:09, William Zhang wrote:
> On 07/25/2022 04:32 PM, Rob Herring wrote:
>> On Sun, Jul 24, 2022 at 10:53:56PM -0700, William Zhang wrote:
>>> Append "brcm,bcmbca" to compatible strings based on the new bcmbca
>>> binding rule for BCM4908 family based boards. This will break drivers
>>> that use the old compatible string for binding. Fortunately there is 
>>> no
>>> such usage in linux and u-boot.
>> 
>> How does adding an additional compatible break things?
>> In theory when some crazy code tries to match the entire string. But 
>> not
> in linux, u-boot code and hopefully not in other bootloader and Os
> does that. But this does change an existing compatible string so
> Krzysztof suggested to add comment about the breakage in the commit
> message. I can remove this and send v3 if you guys think it is
> necessary.

Krzysztof commented on ABI breakage [1] when you tried removing
"brcm,bcm4908" from the "compatible" list in your patch
[RFC PATCH 3/3] arm64: dts: bcmbca: update bcm4808 board dts file [2]

In this version of your patch you don't remove "brcm,bcm4908" anymore so
this change doesn't break anything. Adding a new "compatible" string
doesn't break things. You can remove that info from the commit message.

[1] 
https://lore.kernel.org/linux-arm-kernel/d93e55fa-3359-2609-aad5-c80eca78f380@linaro.org/
[2] 
https://lore.kernel.org/linux-arm-kernel/20220712021144.7068-4-william.zhang@broadcom.com/

^ permalink raw reply	[flat|nested] 21+ messages in thread
* Re: [PATCH v2 3/9] arm64: dts: bcmbca: update BCM4908 board dts files
  2022-07-27 10:39       ` Rafał Miłecki
@ 2022-07-27 12:12         ` Krzysztof Kozlowski
  0 siblings, 0 replies; 21+ messages in thread
From: Krzysztof Kozlowski @ 2022-07-27 12:12 UTC (permalink / raw)
  To: Rafał Miłecki, William Zhang
  Cc: Rob Herring, Linux ARM List, joel.peshkin, f.fainelli,
	Broadcom Kernel List, dan.beygelman, anand.gore, kursad.oney,
	Krzysztof Kozlowski, devicetree, linux-kernel

On 27/07/2022 12:39, Rafał Miłecki wrote:
> On 2022-07-26 03:09, William Zhang wrote:
>> On 07/25/2022 04:32 PM, Rob Herring wrote:
>>> On Sun, Jul 24, 2022 at 10:53:56PM -0700, William Zhang wrote:
>>>> Append "brcm,bcmbca" to compatible strings based on the new bcmbca
>>>> binding rule for BCM4908 family based boards. This will break drivers
>>>> that use the old compatible string for binding. Fortunately there is 
>>>> no
>>>> such usage in linux and u-boot.
>>>
>>> How does adding an additional compatible break things?
>>> In theory when some crazy code tries to match the entire string. But 
>>> not
>> in linux, u-boot code and hopefully not in other bootloader and Os
>> does that. But this does change an existing compatible string so
>> Krzysztof suggested to add comment about the breakage in the commit
>> message. I can remove this and send v3 if you guys think it is
>> necessary.
> 
> Krzysztof commented on ABI breakage [1] when you tried removing
> "brcm,bcm4908" from the "compatible" list in your patch
> [RFC PATCH 3/3] arm64: dts: bcmbca: update bcm4808 board dts file [2]
> 
> In this version of your patch you don't remove "brcm,bcm4908" anymore so
> this change doesn't break anything. Adding a new "compatible" string
> doesn't break things. You can remove that info from the commit message.

Thanks... It is second thing (after not existing Reviewed-by) attributed
to me by William, although here probably by misunderstanding... So for
clarity (obvious stuff is not always obvious to everyone):
1. Removal of compatible is an ABI break.
2. Add of compatible is not an ABI break.

See also:
https://elixir.bootlin.com/linux/v5.19-rc8/source/Documentation/devicetree/bindings/ABI.rst#L26

Best regards,
Krzysztof

^ permalink raw reply	[flat|nested] 21+ messages in thread
* Re: [PATCH v2 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA
  2022-07-25  5:53 ` [PATCH v2 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA William Zhang
  2022-07-25 17:23   ` Wolfram Sang
  2022-07-26  8:28   ` Philipp Zabel
@ 2022-07-27 12:31   ` Rafał Miłecki
  2022-07-28 19:22     ` Florian Fainelli
  2 siblings, 1 reply; 21+ messages in thread
From: Rafał Miłecki @ 2022-07-27 12:31 UTC (permalink / raw)
  To: William Zhang
  Cc: Linux ARM List, joel.peshkin, f.fainelli, Broadcom Kernel List,
	dan.beygelman, anand.gore, kursad.oney, krzysztof.kozlowski,
	Guenter Roeck, Bjorn Helgaas, Miquel Raynal, David S. Miller,
	Rob Herring, Kishon Vijay Abraham I, Vinod Koul, Linus Walleij,
	Philipp Zabel, Greg Kroah-Hartman, Wim Van Sebroeck, linux-i2c,
	linux-kernel, linux-mtd, netdev, linux-pci, linux-phy,
	linux-gpio, linux-mips, linux-serial, linux-watchdog

On 2022-07-25 07:53, William Zhang wrote:
> With Broadcom Broadband arch ARCH_BCMBCA supported in the kernel, this
> patch series migrate the ARCH_BCM4908 symbol to ARCH_BCMBCA. Hence
> replace ARCH_BCM4908 with ARCH_BCMBCA in subsystem Kconfig files.
> 
> Signed-off-by: William Zhang <william.zhang@broadcom.com>
> Acked-by: Guenter Roeck <linux@roeck-us.net> (for watchdog)
> Acked-by: Bjorn Helgaas <bhelgaas@google.com> (for drivers/pci)

I still think it may be a bad idea for all below drivers. Please see my
previous e-mail:
Re: [RESEND PATCH 6/9] arm64: bcmbca: Make BCM4908 drivers depend on 
ARCH_BCMBCA
https://lore.kernel.org/linux-arm-kernel/eee8c85652e6dac69420a876d03f67c4@milecki.pl/

I think we should:
1. Keep ARCH_BCM4908 for 4908 specific drivers (e.g. mtd, pinctrl, net)
2. Use ARCH_BCMBCA for more generic drivers (e.g. I2C, PCI,serial, WD)


> Changes in v2:
> - Add Acked-by tags
> - Update commit message with more details
> 
>  drivers/i2c/busses/Kconfig            | 4 ++--
>  drivers/mtd/parsers/Kconfig           | 6 +++---
>  drivers/net/ethernet/broadcom/Kconfig | 4 ++--
>  drivers/pci/controller/Kconfig        | 2 +-
>  drivers/phy/broadcom/Kconfig          | 4 ++--
>  drivers/pinctrl/bcm/Kconfig           | 4 ++--
>  drivers/reset/Kconfig                 | 2 +-
>  drivers/soc/bcm/bcm63xx/Kconfig       | 4 ++--
>  drivers/tty/serial/Kconfig            | 4 ++--
>  drivers/watchdog/Kconfig              | 2 +-
>  10 files changed, 18 insertions(+), 18 deletions(-)
> 
> diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
> index 45a4e9f1b639..fd9a4dd01997 100644
> --- a/drivers/i2c/busses/Kconfig
> +++ b/drivers/i2c/busses/Kconfig
> @@ -487,8 +487,8 @@ config I2C_BCM_KONA
> 
>  config I2C_BRCMSTB
>  	tristate "BRCM Settop/DSL I2C controller"
> -	depends on ARCH_BCM2835 || ARCH_BCM4908 || ARCH_BCMBCA || \
> -		   ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
> +	depends on ARCH_BCM2835 || ARCH_BCMBCA || ARCH_BRCMSTB || \
> +		   BMIPS_GENERIC || COMPILE_TEST
>  	default y
>  	help
>  	  If you say yes to this option, support will be included for the
> diff --git a/drivers/mtd/parsers/Kconfig b/drivers/mtd/parsers/Kconfig
> index b43df73927a0..d6db655a1d24 100644
> --- a/drivers/mtd/parsers/Kconfig
> +++ b/drivers/mtd/parsers/Kconfig
> @@ -69,8 +69,8 @@ config MTD_OF_PARTS
> 
>  config MTD_OF_PARTS_BCM4908
>  	bool "BCM4908 partitioning support"
> -	depends on MTD_OF_PARTS && (ARCH_BCM4908 || COMPILE_TEST)
> -	default ARCH_BCM4908
> +	depends on MTD_OF_PARTS && (ARCH_BCMBCA || COMPILE_TEST)
> +	default ARCH_BCMBCA
>  	help
>  	  This provides partitions parser for BCM4908 family devices
>  	  that can have multiple "firmware" partitions. It takes care of
> @@ -78,7 +78,7 @@ config MTD_OF_PARTS_BCM4908
> 
>  config MTD_OF_PARTS_LINKSYS_NS
>  	bool "Linksys Northstar partitioning support"
> -	depends on MTD_OF_PARTS && (ARCH_BCM_5301X || ARCH_BCM4908 || 
> COMPILE_TEST)
> +	depends on MTD_OF_PARTS && (ARCH_BCM_5301X || ARCH_BCMBCA || 
> COMPILE_TEST)
>  	default ARCH_BCM_5301X
>  	help
>  	  This provides partitions parser for Linksys devices based on 
> Broadcom
> diff --git a/drivers/net/ethernet/broadcom/Kconfig
> b/drivers/net/ethernet/broadcom/Kconfig
> index 56e0fb07aec7..f4e1ca68d831 100644
> --- a/drivers/net/ethernet/broadcom/Kconfig
> +++ b/drivers/net/ethernet/broadcom/Kconfig
> @@ -53,8 +53,8 @@ config B44_PCI
> 
>  config BCM4908_ENET
>  	tristate "Broadcom BCM4908 internal mac support"
> -	depends on ARCH_BCM4908 || COMPILE_TEST
> -	default y if ARCH_BCM4908
> +	depends on ARCH_BCMBCA || COMPILE_TEST
> +	default y if ARCH_BCMBCA
>  	help
>  	  This driver supports Ethernet controller integrated into Broadcom
>  	  BCM4908 family SoCs.
> diff --git a/drivers/pci/controller/Kconfig 
> b/drivers/pci/controller/Kconfig
> index d1c5fcf00a8a..bfd9bac37e24 100644
> --- a/drivers/pci/controller/Kconfig
> +++ b/drivers/pci/controller/Kconfig
> @@ -274,7 +274,7 @@ config VMD
> 
>  config PCIE_BRCMSTB
>  	tristate "Broadcom Brcmstb PCIe host controller"
> -	depends on ARCH_BRCMSTB || ARCH_BCM2835 || ARCH_BCM4908 || \
> +	depends on ARCH_BRCMSTB || ARCH_BCM2835 || ARCH_BCMBCA || \
>  		   BMIPS_GENERIC || COMPILE_TEST
>  	depends on OF
>  	depends on PCI_MSI_IRQ_DOMAIN
> diff --git a/drivers/phy/broadcom/Kconfig 
> b/drivers/phy/broadcom/Kconfig
> index 93a6a8ee4716..1d89a2fd9b79 100644
> --- a/drivers/phy/broadcom/Kconfig
> +++ b/drivers/phy/broadcom/Kconfig
> @@ -93,11 +93,11 @@ config PHY_BRCM_SATA
> 
>  config PHY_BRCM_USB
>  	tristate "Broadcom STB USB PHY driver"
> -	depends on ARCH_BCM4908 || ARCH_BRCMSTB || COMPILE_TEST
> +	depends on ARCH_BCMBCA || ARCH_BRCMSTB || COMPILE_TEST
>  	depends on OF
>  	select GENERIC_PHY
>  	select SOC_BRCMSTB if ARCH_BRCMSTB
> -	default ARCH_BCM4908 || ARCH_BRCMSTB
> +	default ARCH_BCMBCA || ARCH_BRCMSTB
>  	help
>  	  Enable this to support the Broadcom STB USB PHY.
>  	  This driver is required by the USB XHCI, EHCI and OHCI
> diff --git a/drivers/pinctrl/bcm/Kconfig b/drivers/pinctrl/bcm/Kconfig
> index 8f4d89806fcb..35b51ce4298e 100644
> --- a/drivers/pinctrl/bcm/Kconfig
> +++ b/drivers/pinctrl/bcm/Kconfig
> @@ -31,13 +31,13 @@ config PINCTRL_BCM2835
> 
>  config PINCTRL_BCM4908
>  	tristate "Broadcom BCM4908 pinmux driver"
> -	depends on OF && (ARCH_BCM4908 || COMPILE_TEST)
> +	depends on OF && (ARCH_BCMBCA || COMPILE_TEST)
>  	select PINMUX
>  	select PINCONF
>  	select GENERIC_PINCONF
>  	select GENERIC_PINCTRL_GROUPS
>  	select GENERIC_PINMUX_FUNCTIONS
> -	default ARCH_BCM4908
> +	default ARCH_BCMBCA
>  	help
>  	  Driver for BCM4908 family SoCs with integrated pin controller.
> 
> diff --git a/drivers/reset/Kconfig b/drivers/reset/Kconfig
> index f9a7cee01659..7ae71535fe2a 100644
> --- a/drivers/reset/Kconfig
> +++ b/drivers/reset/Kconfig
> @@ -201,7 +201,7 @@ config RESET_SCMI
> 
>  config RESET_SIMPLE
>  	bool "Simple Reset Controller Driver" if COMPILE_TEST || EXPERT
> -	default ARCH_ASPEED || ARCH_BCM4908 || ARCH_BITMAIN || ARCH_REALTEK
> || ARCH_STM32 || (ARCH_INTEL_SOCFPGA && ARM64) || ARCH_SUNXI || ARC
> +	default ARCH_ASPEED || ARCH_BCMBCA || ARCH_BITMAIN || ARCH_REALTEK
> || ARCH_STM32 || (ARCH_INTEL_SOCFPGA && ARM64) || ARCH_SUNXI || ARC
>  	help
>  	  This enables a simple reset controller driver for reset lines that
>  	  that can be asserted and deasserted by toggling bits in a 
> contiguous,
> diff --git a/drivers/soc/bcm/bcm63xx/Kconfig 
> b/drivers/soc/bcm/bcm63xx/Kconfig
> index 9e501c8ac5ce..355c34482076 100644
> --- a/drivers/soc/bcm/bcm63xx/Kconfig
> +++ b/drivers/soc/bcm/bcm63xx/Kconfig
> @@ -13,8 +13,8 @@ endif # SOC_BCM63XX
> 
>  config BCM_PMB
>  	bool "Broadcom PMB (Power Management Bus) driver"
> -	depends on ARCH_BCM4908 || (COMPILE_TEST && OF)
> -	default ARCH_BCM4908
> +	depends on ARCH_BCMBCA || (COMPILE_TEST && OF)
> +	default ARCH_BCMBCA
>  	select PM_GENERIC_DOMAINS if PM
>  	help
>  	  This enables support for the Broadcom's PMB (Power Management Bus) 
> that
> diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
> index e3279544b03c..f32bb01c3feb 100644
> --- a/drivers/tty/serial/Kconfig
> +++ b/drivers/tty/serial/Kconfig
> @@ -1100,8 +1100,8 @@ config SERIAL_TIMBERDALE
>  config SERIAL_BCM63XX
>  	tristate "Broadcom BCM63xx/BCM33xx UART support"
>  	select SERIAL_CORE
> -	depends on ARCH_BCM4908 || ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC
> || COMPILE_TEST
> -	default ARCH_BCM4908 || ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC
> +	depends on ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC || COMPILE_TEST
> +	default ARCH_BCMBCA || BCM63XX || BMIPS_GENERIC
>  	help
>  	  This enables the driver for the onchip UART core found on
>  	  the following chipsets:
> diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
> index 32fd37698932..1f85ec8a4b3b 100644
> --- a/drivers/watchdog/Kconfig
> +++ b/drivers/watchdog/Kconfig
> @@ -1798,7 +1798,7 @@ config BCM7038_WDT
>  	tristate "BCM63xx/BCM7038 Watchdog"
>  	select WATCHDOG_CORE
>  	depends on HAS_IOMEM
> -	depends on ARCH_BCM4908 || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX
> || COMPILE_TEST
> +	depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX
> || COMPILE_TEST
>  	help
>  	  Watchdog driver for the built-in hardware in Broadcom 7038 and
>  	  later SoCs used in set-top boxes.  BCM7038 was made public

^ permalink raw reply	[flat|nested] 21+ messages in thread
* Re: [PATCH v2 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA
  2022-07-27 12:31   ` Rafał Miłecki
@ 2022-07-28 19:22     ` Florian Fainelli
  0 siblings, 0 replies; 21+ messages in thread
From: Florian Fainelli @ 2022-07-28 19:22 UTC (permalink / raw)
  To: Rafał Miłecki, William Zhang
  Cc: Linux ARM List, joel.peshkin, Broadcom Kernel List,
	dan.beygelman, anand.gore, kursad.oney, krzysztof.kozlowski,
	Guenter Roeck, Bjorn Helgaas, Miquel Raynal, David S. Miller,
	Rob Herring, Kishon Vijay Abraham I, Vinod Koul, Linus Walleij,
	Philipp Zabel, Greg Kroah-Hartman, Wim Van Sebroeck, linux-i2c,
	linux-kernel, linux-mtd, netdev, linux-pci, linux-phy,
	linux-gpio, linux-mips, linux-serial, linux-watchdog

On 7/27/22 05:31, Rafał Miłecki wrote:
> On 2022-07-25 07:53, William Zhang wrote:
>> With Broadcom Broadband arch ARCH_BCMBCA supported in the kernel, this
>> patch series migrate the ARCH_BCM4908 symbol to ARCH_BCMBCA. Hence
>> replace ARCH_BCM4908 with ARCH_BCMBCA in subsystem Kconfig files.
>>
>> Signed-off-by: William Zhang <william.zhang@broadcom.com>
>> Acked-by: Guenter Roeck <linux@roeck-us.net> (for watchdog)
>> Acked-by: Bjorn Helgaas <bhelgaas@google.com> (for drivers/pci)
> 
> I still think it may be a bad idea for all below drivers. Please see my
> previous e-mail:
> Re: [RESEND PATCH 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA
> https://lore.kernel.org/linux-arm-kernel/eee8c85652e6dac69420a876d03f67c4@milecki.pl/
> 
> I think we should:
> 1. Keep ARCH_BCM4908 for 4908 specific drivers (e.g. mtd, pinctrl, net)
> 2. Use ARCH_BCMBCA for more generic drivers (e.g. I2C, PCI,serial, WD)

IMHO here is no point in keeping an ARCH_BCM4908 anymore when the whole point of the patch series is to do a broad conversion of ARCH_BCM4908 into ARCH_BCMBCA. Even if some of the drivers are considered or thought to be 4908-specific, this is not going to be an issue in practice because there ought to be appropriate compatible strings such that even if you built a 4908-specific driver into a generic ARCH_BCMCA kernel, the actual probing would only happen on 4908.

Now let us flip it the other way round, let's say we keep ARCH_BCM4908 as a sub-arch of ARCH_BCMBCA, then this sets a precedent for adding more and more of those ARCH_BCM4906, ARCH_BCM4912 etc. etc to future kernels under the same reasons that we might want to gate certain drivers to certain sub-arches. But what good does that do?

At some point we got to make it simple for the users, and the simplest way is to have ARCH_BCMBCA only and let DT dictate the device specific probing.
-- 
Florian

^ permalink raw reply	[flat|nested] 21+ messages in thread
end of thread, other threads:[~2022-07-28 19:22 UTC | newest]

Thread overview: 21+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-07-25  5:53 [PATCH v2 0/9] arm64: bcmbca: Move BCM4908 SoC support under ARCH_BCMBCA William Zhang
2022-07-25  5:53 ` [PATCH v2 1/9] dt-bindings: arm64: bcmbca: Merge BCM4908 into BCMBCA William Zhang
2022-07-25 23:30   ` Rob Herring
2022-07-25  5:53 ` [PATCH v2 2/9] dt-bindings: arm64: bcmbca: Update BCM4908 description William Zhang
2022-07-25 23:33   ` Rob Herring
2022-07-25  5:53 ` [PATCH v2 3/9] arm64: dts: bcmbca: update BCM4908 board dts files William Zhang
2022-07-25 23:32   ` Rob Herring
2022-07-26  1:09     ` William Zhang
2022-07-27 10:39       ` Rafał Miłecki
2022-07-27 12:12         ` Krzysztof Kozlowski
2022-07-25  5:53 ` [PATCH v2 4/9] arm64: dts: Move BCM4908 dts to bcmbca folder William Zhang
2022-07-25  5:53 ` [PATCH v2 5/9] arm64: dts: Add BCM4908 generic board dts William Zhang
2022-07-25  5:53 ` [PATCH v2 6/9] arm64: bcmbca: Make BCM4908 drivers depend on ARCH_BCMBCA William Zhang
2022-07-25 17:23   ` Wolfram Sang
2022-07-26  8:28   ` Philipp Zabel
2022-07-26  9:59     ` Vanessa Page
2022-07-27 12:31   ` Rafał Miłecki
2022-07-28 19:22     ` Florian Fainelli
2022-07-25  5:54 ` [PATCH v2 7/9] arm64: bcmbca: Merge ARCH_BCM4908 to ARCH_BCMBCA William Zhang
2022-07-25  5:54 ` [PATCH v2 8/9] MAINTAINERS: Add BCM4908 maintainer to BCMBCA entry William Zhang
2022-07-25  5:54 ` [PATCH v2 9/9] arm64: defconfig: remove BCM4908 William Zhang

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