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Commit 59d92875 authored by Arnd Bergmann's avatar Arnd Bergmann
Browse files

ARM: OMAP: build mach-omap code only if needed 



If we build a kernel with CONFIG_ARCH_OMAP2PLUS enabled but all of the
individual SoCs disabled, we run into a large number of link errors
because if incorrect dependencies:

arch/arm/mach-omap2/built-in.o: In function `_add_initiator_dep':
arch/arm/mach-omap2/omap_hwmod.c:691: undefined reference to `clkdm_add_sleepdep' arch/arm/mach-omap2/built-in.o: In function `_del_initiator_dep':
arch/arm/mach-omap2/omap_hwmod.c:720: undefined reference to `clkdm_del_sleepdep' arch/arm/mach-omap2/built-in.o: In function `_enable':
arch/arm/mach-omap2/omap_hwmod.c:2145: undefined reference to `clkdm_in_hwsup'
arch/arm/mach-omap2/omap_hwmod.c:2147: undefined reference to `clkdm_hwmod_enable'
arch/arm/mach-omap2/omap_hwmod.c:2191: undefined reference to `clkdm_hwmod_disable'
arch/arm/mach-omap2/omap_hwmod.c:2146: undefined reference to `clkdm_missing_idle_reporting' arch/arm/mach-omap2/built-in.o: In function `_idle':
arch/arm/mach-omap2/omap_hwmod.c:2235: undefined reference to `clkdm_hwmod_disable' arch/arm/mach-omap2/built-in.o: In function `_shutdown':
arch/arm/mach-omap2/omap_hwmod.c:2338: undefined reference to `clkdm_hwmod_disable' arch/arm/mach-omap2/built-in.o: In function `omap_hwmod_get_context_loss_count':
arch/arm/mach-omap2/omap_hwmod.c:4071: undefined reference to `pwrdm_get_context_loss_count' arch/arm/mach-omap2/built-in.o: In function `omap_pm_clkdms_setup':
arch/arm/mach-omap2/pm.c:114: undefined reference to `clkdm_allow_idle'
arch/arm/mach-omap2/pm.c:117: undefined reference to `clkdm_sleep' arch/arm/mach-omap2/built-in.o: In function `omap2_common_pm_late_init':
arch/arm/mach-omap2/pm.c:294: undefined reference to `omap_voltage_late_init' arch/arm/mach-omap2/built-in.o: In function `omap2_gpio_dev_init':
arch/arm/mach-omap2/gpio.c:133: undefined reference to `pwrdm_can_ever_lose_context'

We can avoid this if we make CONFIG_ARCH_OMAP2PLUS a silent option that
gets enabled any time that one of the SoC versions is enabled.

Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
parent 514a5908

arch/arm/configs/omap2plus_defconfig

+4 −0
Original line number Diff line number Diff line
@@ -22,6 +22,10 @@ CONFIG_MODULE_SRCVERSION_ALL=y 
# CONFIG_BLK_DEV_BSG is not set

CONFIG_ARCH_MULTI_V6=y

CONFIG_ARCH_OMAP2PLUS=y

CONFIG_ARCH_OMAP2=y

CONFIG_ARCH_OMAP3=y

CONFIG_ARCH_OMAP4=y

CONFIG_SOC_AM33XX=y

CONFIG_OMAP_RESET_CLOCKS=y

CONFIG_OMAP_MUX_DEBUG=y

CONFIG_ARCH_VEXPRESS_CA9X4=y

arch/arm/mach-omap2/Kconfig

+74 −74
Original line number Diff line number Diff line 
config ARCH_OMAP

	bool



config ARCH_OMAP2PLUS

	bool "TI OMAP2/3/4/5 SoCs with device tree support" if (ARCH_MULTI_V6 || ARCH_MULTI_V7)

	select ARCH_HAS_CPUFREQ

	select ARCH_HAS_HOLES_MEMORYMODEL

	select ARCH_OMAP

	select ARCH_REQUIRE_GPIOLIB

	select CLKDEV_LOOKUP

	select CLKSRC_MMIO

	select GENERIC_CLOCKEVENTS

	select GENERIC_IRQ_CHIP

	select HAVE_CLK

	select OMAP_DM_TIMER

	select PINCTRL

	select PROC_DEVICETREE if PROC_FS

	select SOC_BUS

	select SPARSE_IRQ

	select TI_PRIV_EDMA

	select USE_OF

	help

	  Systems based on OMAP2, OMAP3, OMAP4 or OMAP5





if ARCH_OMAP2PLUS



menu "TI OMAP2/3/4 Specific Features"



config ARCH_OMAP2PLUS_TYPICAL

	bool "Typical OMAP configuration"

	default y

	select AEABI

	select HIGHMEM

	select I2C

	select I2C_OMAP

	select MENELAUS if ARCH_OMAP2

	select NEON if ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5

	select PM_RUNTIME

	select REGULATOR

	select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4

	select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4

	select VFP

	help

	  Compile a kernel suitable for booting most boards



config SOC_HAS_OMAP2_SDRC

	bool "OMAP2 SDRAM Controller support"



config SOC_HAS_REALTIME_COUNTER

	bool "Real time free running counter"

	depends on SOC_OMAP5

	default y



config ARCH_OMAP2

	bool "TI OMAP2"

	depends on ARCH_OMAP2PLUS

	depends on ARCH_MULTI_V6

	default y

	select ARCH_OMAP2PLUS

	select CPU_V6

	select MULTI_IRQ_HANDLER

	select SOC_HAS_OMAP2_SDRC
@@ -64,9 +12,8 @@ config ARCH_OMAP2 


config ARCH_OMAP3

	bool "TI OMAP3"

	depends on ARCH_OMAP2PLUS

	depends on ARCH_MULTI_V7

	default y

	select ARCH_OMAP2PLUS

	select ARCH_HAS_OPP

	select ARM_CPU_SUSPEND if PM

	select CPU_V7
@@ -80,9 +27,8 @@ config ARCH_OMAP3 


config ARCH_OMAP4

	bool "TI OMAP4"

	default y

	depends on ARCH_OMAP2PLUS

	depends on ARCH_MULTI_V7

	select ARCH_OMAP2PLUS

	select ARCH_HAS_OPP

	select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP

	select ARM_CPU_SUSPEND if PM
@@ -107,6 +53,7 @@ config ARCH_OMAP4 
config SOC_OMAP5

	bool "TI OMAP5"

	depends on ARCH_MULTI_V7

	select ARCH_OMAP2PLUS

	select ARM_CPU_SUSPEND if PM

	select ARM_GIC

	select CPU_V7
@@ -116,6 +63,76 @@ config SOC_OMAP5 
	select COMMON_CLK

	select HAVE_ARM_ARCH_TIMER



config SOC_AM33XX

	bool "AM33XX support"

	depends on ARCH_MULTI_V7

	select ARCH_OMAP2PLUS

	select ARM_CPU_SUSPEND if PM

	select CPU_V7

	select MULTI_IRQ_HANDLER

	select COMMON_CLK



config SOC_AM43XX

	bool "TI AM43x"

	depends on ARCH_MULTI_V7

	select CPU_V7

	select ARCH_OMAP2PLUS

	select MULTI_IRQ_HANDLER

	select ARM_GIC

	select COMMON_CLK

	select MACH_OMAP_GENERIC



config ARCH_OMAP2PLUS

	bool

	select ARCH_HAS_BANDGAP

	select ARCH_HAS_CPUFREQ

	select ARCH_HAS_HOLES_MEMORYMODEL

	select ARCH_OMAP

	select ARCH_REQUIRE_GPIOLIB

	select CLKDEV_LOOKUP

	select CLKSRC_MMIO

	select GENERIC_CLOCKEVENTS

	select GENERIC_IRQ_CHIP

	select HAVE_CLK

	select OMAP_DM_TIMER

	select PINCTRL

	select PROC_DEVICETREE if PROC_FS

	select SOC_BUS

	select SPARSE_IRQ

	select USE_OF

	help

	  Systems based on OMAP2, OMAP3, OMAP4 or OMAP5





if ARCH_OMAP2PLUS



menu "TI OMAP2/3/4 Specific Features"



config ARCH_OMAP2PLUS_TYPICAL

	bool "Typical OMAP configuration"

	default y

	select AEABI

	select HIGHMEM

	select I2C

	select I2C_OMAP

	select MENELAUS if ARCH_OMAP2

	select NEON if ARCH_OMAP3 || ARCH_OMAP4 || SOC_OMAP5

	select PM_RUNTIME

	select REGULATOR

	select TWL4030_CORE if ARCH_OMAP3 || ARCH_OMAP4

	select TWL4030_POWER if ARCH_OMAP3 || ARCH_OMAP4

	select VFP

	help

	  Compile a kernel suitable for booting most boards



config SOC_HAS_OMAP2_SDRC

	bool "OMAP2 SDRAM Controller support"



config SOC_HAS_REALTIME_COUNTER

	bool "Real time free running counter"

	depends on SOC_OMAP5

	default y



comment "OMAP Core Type"

	depends on ARCH_OMAP2
@@ -143,23 +160,6 @@ config SOC_TI81XX 
	depends on ARCH_OMAP3

	default y



config SOC_AM33XX

	bool "AM33XX support"

	depends on ARCH_MULTI_V7

	default y

	select ARM_CPU_SUSPEND if PM

	select CPU_V7

	select MULTI_IRQ_HANDLER

	select COMMON_CLK



config SOC_AM43XX

	bool "TI AM43x"

	select CPU_V7

	select MULTI_IRQ_HANDLER

	select ARM_GIC

	select COMMON_CLK

	select MACH_OMAP_GENERIC



config OMAP_PACKAGE_ZAF

       bool