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: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> --- drivers/soc/Kconfig | 1 + drivers/soc/Makefile | 2 +- drivers/soc/renesas/Kconfig | 63 ++++++++++++++++++++++++++++++++++++ drivers/soc/renesas/Makefile | 31 +++++++++--------- drivers/soc/renesas/rcar-sysc.c | 24 +++++++------- include/linux/soc/renesas/rcar-rst.h | 3 +- 6 files changed, 92 insertions(+), 32 deletions(-) create mode 100644 drivers/soc/renesas/Kconfig diff --git a/drivers/soc/Kconfig b/drivers/soc/Kconfig index f09023f7ab119025..de4fcdbae2a8fa03 100644 --- a/drivers/soc/Kconfig +++ b/drivers/soc/Kconfig @@ -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" diff --git a/drivers/soc/Makefile b/drivers/soc/Makefile index 05eae52a30b45133..59d8c937f4a8748e 100644 --- a/drivers/soc/Makefile +++ b/drivers/soc/Makefile @@ -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/ diff --git a/drivers/soc/renesas/Kconfig b/drivers/soc/renesas/Kconfig new file mode 100644 index 0000000000000000..87a4be46bd9834c1 --- /dev/null +++ b/drivers/soc/renesas/Kconfig @@ -0,0 +1,63 @@ +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 diff --git a/drivers/soc/renesas/Makefile b/drivers/soc/renesas/Makefile index d9115cb5ed9dae78..1a1a297b26a79613 100644 --- a/drivers/soc/renesas/Makefile +++ b/drivers/soc/renesas/Makefile @@ -1,18 +1,17 @@ -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 diff --git a/drivers/soc/renesas/rcar-sysc.c b/drivers/soc/renesas/rcar-sysc.c index 528a13742aeb98d8..dcad5c42a5e81c87 100644 --- a/drivers/soc/renesas/rcar-sysc.c +++ b/drivers/soc/renesas/rcar-sysc.c @@ -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 */ } diff --git a/include/linux/soc/renesas/rcar-rst.h b/include/linux/soc/renesas/rcar-rst.h index 787e7ad53d45f61c..2c231f2280a6dc50 100644 --- a/include/linux/soc/renesas/rcar-rst.h +++ b/include/linux/soc/renesas/rcar-rst.h @@ -1,8 +1,7 @@ #ifndef __LINUX_SOC_RENESAS_RCAR_RST_H__ #define __LINUX_SOC_RENESAS_RCAR_RST_H__ -#if defined(CONFIG_ARCH_RCAR_GEN1) || defined(CONFIG_ARCH_RCAR_GEN2) || \ - defined(CONFIG_ARCH_R8A7795) || defined(CONFIG_ARCH_R8A7796) +#ifdef CONFIG_RST_RCAR int rcar_rst_read_mode_pins(u32 *mode); #else static inline int rcar_rst_read_mode_pins(u32 *mode) { return -ENODEV; } -- 2.7.4