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Commit 8be381a1 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Simon Horman
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soc: renesas: Rework Kconfig and Makefile logic 



The goals are to:
  - Allow precise control over and automatic selection of which
    (sub)drivers are used for which SoC,
  - Allow adding support for new SoCs easily,
  - Allow compile-testing of all (sub)drivers,
  - Keep driver selection logic in the subsystem-specific Kconfig,
    independent from the architecture-specific Kconfig (i.e. no "select"
    from arch/arm64/Kconfig.platforms), to avoid dependencies.

This is implemented by:
  - Introducing Kconfig symbols for all drivers and sub-drivers,
  - Introducing the Kconfig symbol SOC_RENESAS, which is enabled
    automatically when building for a Renesas ARM platform, and which
    enables all required drivers without interaction of the user, based
    on SoC-specific ARCH_* symbols,
  - Allowing the user to enable any Kconfig symbol manually if
    COMPILE_TEST is enabled,
  - Using the new Kconfig symbols instead of the ARCH_* symbols to
    control compilation in the Makefile,
  - Always entering drivers/soc/renesas/ during the build.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: default avatarSimon Horman <horms+renesas@verge.net.au>
parent 7b4ccb3c

drivers/soc/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -4,6 +4,7 @@ source "drivers/soc/bcm/Kconfig" 
source "drivers/soc/fsl/Kconfig"

source "drivers/soc/mediatek/Kconfig"

source "drivers/soc/qcom/Kconfig"

source "drivers/soc/renesas/Kconfig"

source "drivers/soc/rockchip/Kconfig"

source "drivers/soc/samsung/Kconfig"

source "drivers/soc/sunxi/Kconfig"

drivers/soc/Makefile

+1 −1
Original line number Diff line number Diff line
@@ -8,7 +8,7 @@ obj-$(CONFIG_MACH_DOVE) += dove/ 
obj-y				+= fsl/

obj-$(CONFIG_ARCH_MEDIATEK)	+= mediatek/

obj-$(CONFIG_ARCH_QCOM)		+= qcom/

obj-$(CONFIG_ARCH_RENESAS)	+= renesas/

obj-y				+= renesas/

obj-$(CONFIG_ARCH_ROCKCHIP)	+= rockchip/

obj-$(CONFIG_SOC_SAMSUNG)	+= samsung/

obj-$(CONFIG_ARCH_SUNXI)	+= sunxi/

drivers/soc/renesas/Kconfig

0 → 100644
+63 −0
Original line number Diff line number Diff line 
config SOC_RENESAS

	bool "Renesas SoC driver support" if COMPILE_TEST && !ARCH_RENESAS

	default y if ARCH_RENESAS

	select SOC_BUS

	select RST_RCAR if ARCH_RCAR_GEN1 || ARCH_RCAR_GEN2 || \

			   ARCH_R8A7795 || ARCH_R8A7796

	select SYSC_R8A7743 if ARCH_R8A7743

	select SYSC_R8A7745 if ARCH_R8A7745

	select SYSC_R8A7779 if ARCH_R8A7779

	select SYSC_R8A7790 if ARCH_R8A7790

	select SYSC_R8A7791 if ARCH_R8A7791 || ARCH_R8A7793

	select SYSC_R8A7792 if ARCH_R8A7792

	select SYSC_R8A7794 if ARCH_R8A7794

	select SYSC_R8A7795 if ARCH_R8A7795

	select SYSC_R8A7796 if ARCH_R8A7796



if SOC_RENESAS



# SoC

config SYSC_R8A7743

	bool "RZ/G1M System Controller support" if COMPILE_TEST

	select SYSC_RCAR



config SYSC_R8A7745

	bool "RZ/G1E System Controller support" if COMPILE_TEST

	select SYSC_RCAR



config SYSC_R8A7779

	bool "R-Car H1 System Controller support" if COMPILE_TEST

	select SYSC_RCAR



config SYSC_R8A7790

	bool "R-Car H2 System Controller support" if COMPILE_TEST

	select SYSC_RCAR



config SYSC_R8A7791

	bool "R-Car M2-W/N System Controller support" if COMPILE_TEST

	select SYSC_RCAR



config SYSC_R8A7792

	bool "R-Car V2H System Controller support" if COMPILE_TEST

	select SYSC_RCAR



config SYSC_R8A7794

	bool "R-Car E2 System Controller support" if COMPILE_TEST

	select SYSC_RCAR



config SYSC_R8A7795

	bool "R-Car H3 System Controller support" if COMPILE_TEST

	select SYSC_RCAR



config SYSC_R8A7796

	bool "R-Car M3-W System Controller support" if COMPILE_TEST

	select SYSC_RCAR



# Family

config RST_RCAR

	bool "R-Car Reset Controller support" if COMPILE_TEST



config SYSC_RCAR

	bool "R-Car System Controller support" if COMPILE_TEST



endif # SOC_RENESAS

drivers/soc/renesas/Makefile

+15 −16
Original line number Diff line number Diff line 
obj-$(CONFIG_SOC_BUS)		+= renesas-soc.o

# Generic, must be first because of soc_device_register()

obj-$(CONFIG_SOC_RENESAS)	+= renesas-soc.o



obj-$(CONFIG_ARCH_RCAR_GEN1)	+= rcar-rst.o

obj-$(CONFIG_ARCH_RCAR_GEN2)	+= rcar-rst.o

obj-$(CONFIG_ARCH_R8A7795)	+= rcar-rst.o

obj-$(CONFIG_ARCH_R8A7796)	+= rcar-rst.o

# SoC

obj-$(CONFIG_SYSC_R8A7743)	+= r8a7743-sysc.o

obj-$(CONFIG_SYSC_R8A7745)	+= r8a7745-sysc.o

obj-$(CONFIG_SYSC_R8A7779)	+= r8a7779-sysc.o

obj-$(CONFIG_SYSC_R8A7790)	+= r8a7790-sysc.o

obj-$(CONFIG_SYSC_R8A7791)	+= r8a7791-sysc.o

obj-$(CONFIG_SYSC_R8A7792)	+= r8a7792-sysc.o

obj-$(CONFIG_SYSC_R8A7794)	+= r8a7794-sysc.o

obj-$(CONFIG_SYSC_R8A7795)	+= r8a7795-sysc.o

obj-$(CONFIG_SYSC_R8A7796)	+= r8a7796-sysc.o



obj-$(CONFIG_ARCH_R8A7743)	+= rcar-sysc.o r8a7743-sysc.o

obj-$(CONFIG_ARCH_R8A7745)	+= rcar-sysc.o r8a7745-sysc.o

obj-$(CONFIG_ARCH_R8A7779)	+= rcar-sysc.o r8a7779-sysc.o

obj-$(CONFIG_ARCH_R8A7790)	+= rcar-sysc.o r8a7790-sysc.o

obj-$(CONFIG_ARCH_R8A7791)	+= rcar-sysc.o r8a7791-sysc.o

obj-$(CONFIG_ARCH_R8A7792)	+= rcar-sysc.o r8a7792-sysc.o

# R-Car M2-N is identical to R-Car M2-W w.r.t. power domains.

obj-$(CONFIG_ARCH_R8A7793)	+= rcar-sysc.o r8a7791-sysc.o

obj-$(CONFIG_ARCH_R8A7794)	+= rcar-sysc.o r8a7794-sysc.o

obj-$(CONFIG_ARCH_R8A7795)	+= rcar-sysc.o r8a7795-sysc.o

obj-$(CONFIG_ARCH_R8A7796)	+= rcar-sysc.o r8a7796-sysc.o
 
# Family

obj-$(CONFIG_RST_RCAR)		+= rcar-rst.o

obj-$(CONFIG_SYSC_RCAR)		+= rcar-sysc.o

drivers/soc/renesas/rcar-sysc.c

+11 −13
Original line number Diff line number Diff line
@@ -275,35 +275,33 @@ static void __init rcar_sysc_pd_setup(struct rcar_sysc_pd *pd) 
}



static const struct of_device_id rcar_sysc_matches[] = {

#ifdef CONFIG_ARCH_R8A7743

#ifdef CONFIG_SYSC_R8A7743

	{ .compatible = "renesas,r8a7743-sysc", .data = &r8a7743_sysc_info },

#endif

#ifdef CONFIG_ARCH_R8A7745

#ifdef CONFIG_SYSC_R8A7745

	{ .compatible = "renesas,r8a7745-sysc", .data = &r8a7745_sysc_info },

#endif

#ifdef CONFIG_ARCH_R8A7779

#ifdef CONFIG_SYSC_R8A7779

	{ .compatible = "renesas,r8a7779-sysc", .data = &r8a7779_sysc_info },

#endif

#ifdef CONFIG_ARCH_R8A7790

#ifdef CONFIG_SYSC_R8A7790

	{ .compatible = "renesas,r8a7790-sysc", .data = &r8a7790_sysc_info },

#endif

#ifdef CONFIG_ARCH_R8A7791

#ifdef CONFIG_SYSC_R8A7791

	{ .compatible = "renesas,r8a7791-sysc", .data = &r8a7791_sysc_info },

#endif

#ifdef CONFIG_ARCH_R8A7792

	{ .compatible = "renesas,r8a7792-sysc", .data = &r8a7792_sysc_info },

#endif

#ifdef CONFIG_ARCH_R8A7793

	/* R-Car M2-N is identical to R-Car M2-W w.r.t. power domains. */

	{ .compatible = "renesas,r8a7793-sysc", .data = &r8a7791_sysc_info },

#endif

#ifdef CONFIG_ARCH_R8A7794

#ifdef CONFIG_SYSC_R8A7792

	{ .compatible = "renesas,r8a7792-sysc", .data = &r8a7792_sysc_info },

#endif

#ifdef CONFIG_SYSC_R8A7794

	{ .compatible = "renesas,r8a7794-sysc", .data = &r8a7794_sysc_info },

#endif

#ifdef CONFIG_ARCH_R8A7795

#ifdef CONFIG_SYSC_R8A7795

	{ .compatible = "renesas,r8a7795-sysc", .data = &r8a7795_sysc_info },

#endif

#ifdef CONFIG_ARCH_R8A7796

#ifdef CONFIG_SYSC_R8A7796

	{ .compatible = "renesas,r8a7796-sysc", .data = &r8a7796_sysc_info },

#endif

	{ /* sentinel */ }