ARM: debug-ll: fix BCM63xx entry for multiplatform

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@arndb.de>
Fixes: b51312bebfa4 ("ARM: BCM63XX: add low-level UART debug support")
Cc: stable@vger.kernel.org

diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 776fc7c7f8fe92008fc8ffbf93cc250ea52e1f1d..baee86602b04b0d8d9858ffcada72396a8a67f00 100644 (file)
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -162,10 +162,9 @@ 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"
@@ -1423,7 +1422,7 @@ 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 "debug/digicolor.S" if DEBUG_DIGICOLOR_UA0
        default "mach/debug-macro.S"
 
@@ -1437,10 +1436,6 @@ config DEBUG_UART_8250
                ARCH_IOP13XX || ARCH_IOP32X || ARCH_IOP33X || ARCH_IXP4XX || \
                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 0x00100a00 if DEBUG_NETX_UART
@@ -1537,7 +1532,7 @@ config DEBUG_UART_PHYS
        default 0xfffb0000 if DEBUG_OMAP1UART1 || DEBUG_OMAP7XXUART1
        default 0xfffb0800 if DEBUG_OMAP1UART2 || DEBUG_OMAP7XXUART2
        default 0xfffb9800 if DEBUG_OMAP1UART3 || DEBUG_OMAP7XXUART3
-       default 0xfffe8600 if DEBUG_UART_BCM63XX
+       default 0xfffe8600 if DEBUG_BCM63XX_UART
        default 0xfffff700 if ARCH_IOP33X
        depends on ARCH_EP93XX || \
                DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
@@ -1550,7 +1545,7 @@ config DEBUG_UART_PHYS
                DEBUG_RMOBILE_SCIFA0 || DEBUG_RMOBILE_SCIFA1 || \
                DEBUG_RMOBILE_SCIFA4 || DEBUG_S3C24XX_UART || \
                DEBUG_S3C64XX_UART || \
-               DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
+               DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
                DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0 || \
                DEBUG_AT91_UART
 
@@ -1596,7 +1591,7 @@ config DEBUG_UART_VIRT
        default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
        default 0xfc40ab00 if DEBUG_BRCMSTB_UART
        default 0xfc705000 if DEBUG_ZTE_ZX
-       default 0xfcfe8600 if DEBUG_UART_BCM63XX
+       default 0xfcfe8600 if DEBUG_BCM63XX_UART
        default 0xfd000000 if DEBUG_SPEAR3XX || DEBUG_SPEAR13XX
        default 0xfd012000 if DEBUG_MVEBU_UART0_ALTERNATE && ARCH_MV78XX0
        default 0xfd883000 if DEBUG_ALPINE_UART0
@@ -1646,7 +1641,7 @@ config DEBUG_UART_VIRT
                DEBUG_NETX_UART || \
                DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
                DEBUG_S3C64XX_UART || \
-               DEBUG_UART_BCM63XX || DEBUG_ASM9260_UART || \
+               DEBUG_BCM63XX_UART || DEBUG_ASM9260_UART || \
                DEBUG_SIRFSOC_UART || DEBUG_DIGICOLOR_UA0
 
 config DEBUG_UART_8250_SHIFT