linux-kernel - [PATCH v2 8/8] ARM: bcm2835: Add Kconfig support for bcm2836

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Message-Id: <1450310115-22163-9-git-send-email-eric@anholt.net>
Date:	Wed, 16 Dec 2015 15:55:15 -0800
From:	Eric Anholt <eric@...olt.net>
To:	linux-rpi-kernel@...ts.infradead.org
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Stephen Warren <swarren@...dotorg.org>,
	Lee Jones <lee@...nel.org>,
	Florian Fainelli <f.fainelli@...il.com>,
	devicetree@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	bcm-kernel-feedback-list@...adcom.com, Ray Jui <rjui@...adcom.com>,
	Scott Branden <sbranden@...adcom.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Marc Zyngier <marc.zyngier@....com>,
	Eric Anholt <eric@...olt.net>
Subject: [PATCH v2 8/8] ARM: bcm2835: Add Kconfig support for bcm2836

This should be a complete port of bcm2835 functionality to bcm2836
(Raspberry Pi 2).

Signed-off-by: Eric Anholt <eric@...olt.net>
---

v2: Implement Arnd's feedback to not split to ARCH_BCM2836, and
    instead use more conditionals in ARCH_BCM2835.  Also reduce diff
    between 2835 and 2836.

 arch/arm/Kconfig.debug     | 10 ++++++++--
 arch/arm/boot/dts/Makefile |  3 ++-
 arch/arm/mach-bcm/Kconfig  |  8 ++++----
 3 files changed, 14 insertions(+), 7 deletions(-)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 259c0ca..957b876 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -143,7 +143,12 @@ choice
 
 	config DEBUG_BCM2835
 		bool "Kernel low-level debugging on BCM2835 PL011 UART"
-		depends on ARCH_BCM2835
+		depends on ARCH_BCM2835 && ARCH_MULTI_V6
+		select DEBUG_UART_PL01X
+
+	config DEBUG_BCM2836
+		bool "Kernel low-level debugging on BCM2836 PL011 UART"
+		depends on ARCH_BCM2835 && ARCH_MULTI_V7
 		select DEBUG_UART_PL01X
 
 	config DEBUG_BCM_5301X
@@ -1402,6 +1407,7 @@ config DEBUG_UART_PHYS
 	default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
 	default 0x20068000 if DEBUG_RK29_UART2 || DEBUG_RK3X_UART3
 	default 0x20201000 if DEBUG_BCM2835
+	default 0x3f201000 if DEBUG_BCM2836
 	default 0x3e000000 if DEBUG_BCM_KONA_UART
 	default 0x4000e400 if DEBUG_LL_UART_EFM32
 	default 0x40081000 if DEBUG_LPC18XX_UART0
@@ -1485,7 +1491,7 @@ config DEBUG_UART_VIRT
 	default 0xf0000be0 if ARCH_EBSA110
 	default 0xf0010000 if DEBUG_ASM9260_UART
 	default 0xf01fb000 if DEBUG_NOMADIK_UART
-	default 0xf0201000 if DEBUG_BCM2835
+	default 0xf0201000 if DEBUG_BCM2835 || DEBUG_BCM2836
 	default 0xf1000300 if DEBUG_BCM_5301X
 	default 0xf1002000 if DEBUG_MT8127_UART0
 	default 0xf1006000 if DEBUG_MT6589_UART0
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 30bbc37..54e8f6b 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -60,7 +60,8 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
 	bcm2835-rpi-b.dtb \
 	bcm2835-rpi-b-rev2.dtb \
 	bcm2835-rpi-b-plus.dtb \
-	bcm2835-rpi-a-plus.dtb
+	bcm2835-rpi-a-plus.dtb \
+	bcm2836-rpi-2-b.dtb
 dtb-$(CONFIG_ARCH_BCM_5301X) += \
 	bcm4708-asus-rt-ac56u.dtb \
 	bcm4708-asus-rt-ac68u.dtb \
diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index 8c53c55..d7cada9 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -122,17 +122,17 @@ config ARCH_BCM_MOBILE_SMP
 comment "Other Architectures"
 
 config ARCH_BCM2835
-	bool "Broadcom BCM2835 family" if ARCH_MULTI_V6
+	bool "Broadcom BCM2835 family" if ARCH_MULTI_V6 || ARCH_MULTI_V7
 	select ARCH_REQUIRE_GPIOLIB
 	select ARM_AMBA
-	select ARM_ERRATA_411920
+	select ARM_ERRATA_411920 if ARCH_MULTI_V6
 	select ARM_TIMER_SP804
 	select CLKSRC_OF
 	select PINCTRL
 	select PINCTRL_BCM2835
 	help
-	  This enables support for the Broadcom BCM2835 SoC. This SoC is
-	  used in the Raspberry Pi and Roku 2 devices.
+	  This enables support for the Broadcom BCM2835 and BCM2836 SoCs.
+	  This SoC is used in the Raspberry Pi and Roku 2 devices.
 
 config ARCH_BCM_63XX
 	bool "Broadcom BCM63xx DSL SoC" if ARCH_MULTI_V7
-- 
2.6.2

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