[3.19.y-ckt stable] Patch "ARM: debug-ll: fix BCM63xx entry for multiplatform" has been added to the 3.19.y-ckt tree

[Kamal Mostafa]

This is a note to let you know that I have just added a patch titled

    ARM: debug-ll: fix BCM63xx entry for multiplatform

to the linux-3.19.y-queue branch of the 3.19.y-ckt extended stable tree 
which can be found at:

    http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.19.y-queue

This patch is scheduled to be released in version 3.19.8-ckt14.

If you, or anyone else, feels it should not be added to this tree, please 
reply to this email.

For more information about the 3.19.y-ckt tree, see
https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable

Thanks.
-Kamal

---8<------------------------------------------------------------

>From 1dda19b444910acb1e38dfee149fa2dbb35c6905 Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd at arndb.de>
Date: Mon, 18 Jan 2016 10:45:00 +0100
Subject: ARM: debug-ll: fix BCM63xx entry for multiplatform

commit 6c54809977de3c9e2ef9e9934a2c6625f7e161e7 upstream.

During my randconfig build testing, I found that a kernel with
DEBUG_AT91_UART and ARCH_BCM_63XX fails to build:

arch/arm/include/debug/at91.S:18:0: error: "CONFIG_DEBUG_UART_VIRT" redefined [-Werror]

It turns out that the DEBUG_UART_BCM63XX option is enabled whenever
the ARCH_BCM_63XX is, and that breaks multiplatform kernels because
we then end up using the UART address from BCM63XX rather than the
one we actually configured (if any).

This changes the BCM63XX options to only have one Kconfig option,
and only enable that if the user explicitly turns it on.

Signed-off-by: Arnd Bergmann <arnd at arndb.de>
Fixes: b51312bebfa4 ("ARM: BCM63XX: add low-level UART debug support")
[ kamal: backport to 3.19-stable: context ]
Signed-off-by: Kamal Mostafa <kamal at canonical.com>
---
 arch/arm/Kconfig.debug | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 5ddd490..ae48dc2 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -147,10 +147,9 @@ choice
 		  mobile SoCs in the Kona family of chips (e.g. bcm28155,
 		  bcm11351, etc...)

-	config DEBUG_BCM63XX
+	config DEBUG_BCM63XX_UART
 		bool "Kernel low-level debugging on BCM63XX UART"
 		depends on ARCH_BCM_63XX
-		select DEBUG_UART_BCM63XX

 	config DEBUG_BERLIN_UART
 		bool "Marvell Berlin SoC Debug UART"
@@ -1203,7 +1202,7 @@ config DEBUG_LL_INCLUDE
 	default "debug/vf.S" if DEBUG_VF_UART
 	default "debug/vt8500.S" if DEBUG_VT8500_UART0
 	default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
-	default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
+	default "debug/bcm63xx.S" if DEBUG_BCM63XX_UART
 	default "mach/debug-macro.S"

 # Compatibility options for PL01x
@@ -1223,10 +1222,6 @@ config DEBUG_UART_8250
 		ARCH_IOP33X || ARCH_IXP4XX || \
 		ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC

-# Compatibility options for BCM63xx
-config DEBUG_UART_BCM63XX
-	def_bool ARCH_BCM_63XX
-
 config DEBUG_UART_PHYS
 	hex "Physical base address of debug UART"
 	default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
@@ -1310,7 +1305,7 @@ config DEBUG_UART_PHYS
 	default 0xffe40000 if DEBUG_RCAR_GEN1_SCIF0
 	default 0xffe42000 if DEBUG_RCAR_GEN1_SCIF2
 	default 0xfff36000 if DEBUG_HIGHBANK_UART
-	default 0xfffe8600 if DEBUG_UART_BCM63XX
+	default 0xfffe8600 if DEBUG_BCM63XX_UART
 	default 0xfffff700 if ARCH_IOP33X
 	depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
 		DEBUG_LL_UART_EFM32 || \
@@ -1320,7 +1315,7 @@ config DEBUG_UART_PHYS
 		DEBUG_RCAR_GEN2_SCIF0 || DEBUG_RCAR_GEN2_SCIF2 || \
 		DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
 		DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
-		DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
+		DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART

 config DEBUG_UART_VIRT
 	hex "Virtual base address of debug UART"
@@ -1358,7 +1353,7 @@ config DEBUG_UART_VIRT
 	default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
 	default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
 	default 0xfc40ab00 if DEBUG_BRCMSTB_UART
-	default 0xfcfe8600 if DEBUG_UART_BCM63XX
+	default 0xfcfe8600 if DEBUG_BCM63XX_UART
 	default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
 	default 0xfd000000 if ARCH_SPEAR13XX
 	default 0xfd012000 if ARCH_MV78XX0
@@ -1398,7 +1393,7 @@ config DEBUG_UART_VIRT
 	depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
 		DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
 		DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
-		DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART
+		DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART

 config DEBUG_UART_8250_SHIFT
 	int "Register offset shift for the 8250 debug UART"
--
1.9.1