From patchwork Thu Apr 11 21:37:25 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnd Bergmann X-Patchwork-Id: 2432631 Return-Path: X-Original-To: patchwork-linux-samsung-soc@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by patchwork2.kernel.org (Postfix) with ESMTP id D1736DF230 for ; Thu, 11 Apr 2013 21:37:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753186Ab3DKVhr (ORCPT ); Thu, 11 Apr 2013 17:37:47 -0400 Received: from moutng.kundenserver.de ([212.227.17.9]:56995 "EHLO moutng.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753077Ab3DKVhq (ORCPT ); Thu, 11 Apr 2013 17:37:46 -0400 Received: from wuerfel.lan (HSI-KBW-095-208-002-043.hsi5.kabel-badenwuerttemberg.de [95.208.2.43]) by mrelayeu.kundenserver.de (node=mreu4) with ESMTP (Nemesis) id 0Mah1p-1UAn533XzN-00KJEt; Thu, 11 Apr 2013 23:37:41 +0200 From: Arnd Bergmann To: Kukjin Kim Cc: linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, Arnd Bergmann Subject: [PATCH v3 10/10] ARM: exynos: enable multiplatform support Date: Thu, 11 Apr 2013 23:37:25 +0200 Message-Id: <1365716245-99231-11-git-send-email-arnd@arndb.de> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1365716245-99231-1-git-send-email-arnd@arndb.de> References: <1365716245-99231-1-git-send-email-arnd@arndb.de> X-Provags-ID: V02:K0:HkyRyC/AXy/v01VQtBvzQWkdJWbxXuMek22RD0u5KDz +kP+/X9yy9qLhHBH3Hpiy5KV2ZqZawSYDL3Z/6VkYiSrBZrvgI bBTW08TjW3n9kKUk7fao3P9G0ZOk8setcqzbyIPi3a01iNbew4 8II9QZpxXUWf3iXLwW6mBCpwXz9d8JlejGp3PLj7x3J8eM287W gCgDxsObVpqU1lMhePEAoMAIJgLHJ3ZjoAuY/e3wqykCTSL3RO AOKI0wOLzWAZDWOVNU7iZmKi1/bn0kh6k+l4mekCQudHn4rzvx MzeZmxC/LxP/Wnx60YPlssNM9Bjg8UPweVJNn2nto+HqwTOGOe YHC4dl07kYWbvCdUakr9cC5OX3AX3tJM5fS4Ws0AY Sender: linux-samsung-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-samsung-soc@vger.kernel.org This makes it possible to enable the exynos platform as part of a multiplatform kernel, in addition to keeping the single-platform exynos support. The multiplatform variant has a number of limitations at the moment: * It only supports DT-enabled machines. This is not a problem in the long run, as non-DT machines for exynos are going away. The main problem here is that the gpio code and the exynos_eint irqchip are not multiplatform capable but still required for ATAGS based boot. * The watchdog driver is still missing a conversion. * sparsemem and memory_holes are currently not supported in multiplatform. The the multiplatform aware ARCH_EXYNOS Kconfig symbol is disabled for now, as dependent patches are still pending in other subsystem trees. We will enable it once everything comes together. Signed-off-by: Arnd Bergmann --- arch/arm/Kconfig | 9 +-------- arch/arm/configs/exynos4_defconfig | 2 +- arch/arm/mach-exynos/Kconfig | 26 ++++++++++++++++++++++---- arch/arm/mach-exynos/Makefile | 5 +++-- arch/arm/mach-exynos/common.c | 6 ++++++ arch/arm/plat-samsung/Kconfig | 7 ++++++- arch/arm/plat-samsung/Makefile | 8 ++++++-- arch/arm/plat-samsung/include/plat/pm.h | 5 +++++ drivers/gpio/Makefile | 2 +- 9 files changed, 51 insertions(+), 19 deletions(-) diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 13b7394..b375a94 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -853,18 +853,11 @@ config ARCH_S5PV210 help Samsung S5PV210/S5PC110 series based systems -config ARCH_EXYNOS +config ARCH_EXYNOS_SINGLE bool "Samsung EXYNOS" - select ARCH_HAS_CPUFREQ select ARCH_HAS_HOLES_MEMORYMODEL select ARCH_SPARSEMEM_ENABLE - select CLKDEV_LOOKUP - select CPU_V7 - select GENERIC_CLOCKEVENTS - select HAVE_CLK - select HAVE_S3C2410_I2C if I2C select HAVE_S3C2410_WATCHDOG if WATCHDOG - select HAVE_S3C_RTC if RTC_CLASS select NEED_MACH_GPIO_H select NEED_MACH_MEMORY_H help diff --git a/arch/arm/configs/exynos4_defconfig b/arch/arm/configs/exynos4_defconfig index bffe68e..ae90a0f 100644 --- a/arch/arm/configs/exynos4_defconfig +++ b/arch/arm/configs/exynos4_defconfig @@ -4,7 +4,7 @@ CONFIG_KALLSYMS_ALL=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set -CONFIG_ARCH_EXYNOS=y +CONFIG_ARCH_EXYNOS_SINGLE=y CONFIG_S3C_LOWLEVEL_UART_PORT=1 CONFIG_MACH_SMDKC210=y CONFIG_MACH_ARMLEX4210=y diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index 33e2336..e4ee875 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -7,6 +7,21 @@ # Configuration options for the EXYNOS4 +config ARCH_EXYNOS + # TODO: make this visible after all drivers are converted + bool "Samsung EXYNOS" if ARCH_MULTI_V7 && BROKEN + default ARCH_EXYNOS_SINGLE + select ARCH_HAS_CPUFREQ + select CLKDEV_LOOKUP + select COMMON_CLK + select CPU_V7 + select GENERIC_CLOCKEVENTS + select HAVE_CLK + select HAVE_S3C2410_I2C if I2C + select HAVE_S3C_RTC if RTC_CLASS + help + Support for SAMSUNG's EXYNOS SoCs (EXYNOS4/5) + if ARCH_EXYNOS menu "SAMSUNG EXYNOS SoCs Support" @@ -19,6 +34,9 @@ config ARCH_EXYNOS4 help Samsung EXYNOS4 SoCs based systems +config ARCH_EXYNOS4_SINGLE + def_bool ARCH_EXYNOS4 && ARCH_EXYNOS_SINGLE + config ARCH_EXYNOS5 bool "SAMSUNG EXYNOS5" select HAVE_SMP @@ -35,7 +53,7 @@ config CPU_EXYNOS4210 select PM_GENERIC_DOMAINS select S5P_PM if PM select S5P_SLEEP if PM - select SAMSUNG_DMADEV + select SAMSUNG_DMADEV if ARCH_EXYNOS_SINGLE help Enable EXYNOS4210 CPU support @@ -45,7 +63,7 @@ config SOC_EXYNOS4212 depends on ARCH_EXYNOS4 select S5P_PM if PM select S5P_SLEEP if PM - select SAMSUNG_DMADEV + select SAMSUNG_DMADEV if ARCH_EXYNOS_SINGLE help Enable EXYNOS4212 SoC support @@ -53,7 +71,7 @@ config SOC_EXYNOS4412 bool "SAMSUNG EXYNOS4412" default y depends on ARCH_EXYNOS4 - select SAMSUNG_DMADEV + select SAMSUNG_DMADEV if ARCH_EXYNOS_SINGLE help Enable EXYNOS4412 SoC support @@ -64,7 +82,7 @@ config SOC_EXYNOS5250 select S5P_PM if PM select S5P_SLEEP if PM select S5P_DEV_MFC - select SAMSUNG_DMADEV + select SAMSUNG_DMADEV if ARCH_EXYNOS_SINGLE help Enable EXYNOS5250 SoC support diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile index 435757e..57e9124 100644 --- a/arch/arm/mach-exynos/Makefile +++ b/arch/arm/mach-exynos/Makefile @@ -4,6 +4,7 @@ # http://www.samsung.com/ # # Licensed under GPLv2 +ccflags-$(CONFIG_ARCH_MULTIPLATFORM) += -I$(srctree)/$(src)/include -I$(srctree)/arch/arm/plat-samsung/include obj-y := obj-m := @@ -48,12 +49,12 @@ obj-$(CONFIG_MACH_EXYNOS5_DT) += mach-exynos5-dt.o # device support obj-y += dev-uart.o -obj-$(CONFIG_ARCH_EXYNOS4) += dev-audio.o +obj-$(CONFIG_ARCH_EXYNOS4_SINGLE) += dev-audio.o obj-$(CONFIG_EXYNOS4_DEV_AHCI) += dev-ahci.o obj-$(CONFIG_EXYNOS_DEV_DMA) += dma.o obj-$(CONFIG_EXYNOS4_DEV_USB_OHCI) += dev-ohci.o -obj-$(CONFIG_ARCH_EXYNOS) += setup-i2c0.o +obj-$(CONFIG_ARCH_EXYNOS_SINGLE) += setup-i2c0.o obj-$(CONFIG_EXYNOS4_SETUP_FIMC) += setup-fimc.o obj-$(CONFIG_EXYNOS4_SETUP_FIMD0) += setup-fimd0.o obj-$(CONFIG_EXYNOS4_SETUP_I2C1) += setup-i2c1.o diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index d63d399..83bd3f0 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -368,6 +368,9 @@ static void __init exynos4_map_io(void) else iotable_init(exynos4_iodesc1, ARRAY_SIZE(exynos4_iodesc1)); + if (!IS_ENABLED(CONFIG_EXYNOS_ATAGS)) + return + /* initialize device information early */ exynos4_default_sdhci0(); exynos4_default_sdhci1(); @@ -570,6 +573,8 @@ static void __init exynos4_init_uarts(struct s3c2410_uartcfg *cfg, int no) s3c24xx_init_uartdevs("exynos4210-uart", exynos4_uart_resources, cfg, no); } + +#ifdef CONFIG_EXYNOS_ATAGS static void __iomem *exynos_eint_base; static DEFINE_SPINLOCK(eint_lock); @@ -875,3 +880,4 @@ static int __init exynos_init_irq_eint(void) return 0; } arch_initcall(exynos_init_irq_eint); +#endif diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig index a9d5216..8aae681 100644 --- a/arch/arm/plat-samsung/Kconfig +++ b/arch/arm/plat-samsung/Kconfig @@ -13,6 +13,10 @@ config PLAT_SAMSUNG help Base platform code for all Samsung SoC based systems +config PLAT_SAMSUNG_SINGLE + def_bool PLAT_SAMSUNG && !ARCH_MULTIPLATFORM + + config PLAT_S5P bool depends on (ARCH_S5P64X0 || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_EXYNOS) @@ -23,7 +27,7 @@ config PLAT_S5P select GIC_NON_BANKED if ARCH_EXYNOS4 select NO_IOPORT select PLAT_SAMSUNG - select S3C_GPIO_TRACK + select S3C_GPIO_TRACK if PLAT_SAMSUNG_SINGLE select S5P_GPIO_DRVSTR select SAMSUNG_CLKSRC select SAMSUNG_GPIOLIB_4BIT @@ -178,6 +182,7 @@ config S5P_DEV_UART config S3C_ADC bool "ADC common driver support" + depends on PLAT_SAMSUNG_SINGLE help Core support for the ADC block found in the Samsung SoC systems for drivers such as the touchscreen and hwmon to use to share diff --git a/arch/arm/plat-samsung/Makefile b/arch/arm/plat-samsung/Makefile index 3a7c64d..cf684b2 100644 --- a/arch/arm/plat-samsung/Makefile +++ b/arch/arm/plat-samsung/Makefile @@ -4,6 +4,9 @@ # # Licensed under GPLv2 +ccflags-$(CONFIG_ARCH_MULTI_V7) += -I$(srctree)/$(src)/include +ccflags-$(CONFIG_ARCH_EXYNOS) += -I$(srctree)/arch/arm/mach-exynos/include + obj-y := obj-m := obj-n := dummy.o @@ -34,7 +37,7 @@ obj-$(CONFIG_S3C_ADC) += adc.o obj-y += platformdata.o -obj-y += devs.o +obj-$(CONFIG_PLAT_SAMSUNG_SINGLE) += devs.o obj-y += dev-uart.o obj-$(CONFIG_S5P_DEV_MFC) += s5p-dev-mfc.o obj-$(CONFIG_S5P_DEV_UART) += s5p-dev-uart.o @@ -51,9 +54,10 @@ obj-$(CONFIG_S3C_DMA) += dma.o s3c-dma-ops.o obj-$(CONFIG_SAMSUNG_DMADEV) += dma-ops.o # PM support - obj-$(CONFIG_PM) += pm.o +ifdef CONFIG_PLAT_SAMSUNG_SINGLE obj-$(CONFIG_PM) += pm-gpio.o +endif obj-$(CONFIG_SAMSUNG_PM_CHECK) += pm-check.o obj-$(CONFIG_SAMSUNG_WAKEMASK) += wakeup-mask.o diff --git a/arch/arm/plat-samsung/include/plat/pm.h b/arch/arm/plat-samsung/include/plat/pm.h index f6fcade..266a4e3 100644 --- a/arch/arm/plat-samsung/include/plat/pm.h +++ b/arch/arm/plat-samsung/include/plat/pm.h @@ -166,6 +166,7 @@ extern void s3c_pm_check_store(void); */ extern void s3c_pm_configure_extint(void); +#ifdef CONFIG_PLAT_SAMSUNG_SINGLE /** * samsung_pm_restore_gpios() - restore the state of the gpios after sleep. * @@ -181,6 +182,10 @@ extern void samsung_pm_restore_gpios(void); * Save the GPIO states for resotration on resume. See samsung_pm_restore_gpios(). */ extern void samsung_pm_save_gpios(void); +#else +#define samsung_pm_restore_gpios() do { } while(0) +#define samsung_pm_save_gpios() do { } while(0) +#endif extern void s3c_pm_save_core(void); extern void s3c_pm_restore_core(void); diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile index 22e07bc..6c16050 100644 --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -57,7 +57,7 @@ obj-$(CONFIG_GPIO_PL061) += gpio-pl061.o obj-$(CONFIG_GPIO_PXA) += gpio-pxa.o obj-$(CONFIG_GPIO_RC5T583) += gpio-rc5t583.o obj-$(CONFIG_GPIO_RDC321X) += gpio-rdc321x.o -obj-$(CONFIG_PLAT_SAMSUNG) += gpio-samsung.o +obj-$(CONFIG_PLAT_SAMSUNG_SINGLE) += gpio-samsung.o obj-$(CONFIG_ARCH_SA1100) += gpio-sa1100.o obj-$(CONFIG_GPIO_SCH) += gpio-sch.o obj-$(CONFIG_GPIO_SODAVILLE) += gpio-sodaville.o