Merge branch 'samsung/exynos-multiplatform' into next/multiplatform

These patches get us closer to adding multiplatform support on
the Exynos platform, they are part of a longer series of
patches.  This would get all the simple stuff out of the
way, and I don't think there is a big risk of introducing
regressions with these.

A lot of the other patches have already been merged into
subsystem trees. After this series in in arm-soc, what is
left comes down to

* The ASoC conversion to dmaengine won't make it unless someone
  who knows that code better steps up to do it right away. This
  means that we won't have audio in a 3.10 multiplatform kernel
  on Exynos, but it will still work for users that don't enable
  multiplatform.

* The irqchip (combiner), clk and clksource patches are all based
  on top   of other changesets we pulled in from your trees, so I
  would not make them part of the next/multiplatform branch. We can
  apply them on top of the next/drivers branch once they are
  tested successfully.

* A trivial patch is needed in the end to actually make
  CONFIG_ARCH_EXYNOS visible in multiplatform configurations.
  We will do that as a separate patch once everything else is
  there.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

12 files changed, 56 insertions, 47 deletions

diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 54cf73e7a79..9cfbb33a9ee 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -7,6 +7,20 @@
 
 # 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 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"
@@ -20,6 +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_ARM_SCU if SMP
@@ -37,7 +54,7 @@ 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
 
@@ -47,7 +64,7 @@ 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
 
@@ -55,7 +72,7 @@ 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
 
@@ -66,7 +83,7 @@ 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
 
@@ -87,6 +104,19 @@ config EXYNOS4_MCT
 	help
 	  Use MCT (Multi Core Timer) as kernel timers
 
+config EXYNOS_ATAGS
+	bool "ATAGS based boot for EXYNOS (deprecated)"
+	depends on !ARCH_MULTIPLATFORM
+	depends on ATAGS
+	default y
+	help
+	  The EXYNOS platform is moving towards being completely probed
+	  through device tree. This enables support for board files using
+	  the traditional ATAGS boot format.
+	  Note that this option is not available for multiplatform builds.
+
+if EXYNOS_ATAGS
+
 config EXYNOS_DEV_DMA
 	bool
 	help
@@ -402,6 +432,8 @@ config MACH_SMDK4412
 	  Machine support for Samsung SMDK4412
 endif
 
+endif
+
 comment "Flattened Device Tree based board for EXYNOS SoCs"
 
 config MACH_EXYNOS4_DT
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index 435757e57bb..57e9124d95e 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 d63d399c7ba..83bd3f0e151 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/mach-exynos/dev-uart.c b/arch/arm/mach-exynos/dev-uart.c
index 7c42f4b7c8b..c48aff02c78 100644
--- a/arch/arm/mach-exynos/dev-uart.c
+++ b/arch/arm/mach-exynos/dev-uart.c
@@ -20,6 +20,7 @@
 #include <asm/mach/irq.h>
 #include <mach/hardware.h>
 #include <mach/map.h>
+#include <mach/irqs.h>
 
 #include <plat/devs.h>
 
diff --git a/arch/arm/mach-exynos/include/mach/debug-macro.S b/arch/arm/mach-exynos/include/mach/debug-macro.S
deleted file mode 100644
index e0c86ea475e..00000000000
--- a/arch/arm/mach-exynos/include/mach/debug-macro.S
+++ /dev/null
@@ -1,39 +0,0 @@
-/* linux/arch/arm/mach-exynos4/include/mach/debug-macro.S
- *
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com
- *
- * Based on arch/arm/mach-s3c6400/include/mach/debug-macro.S
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-/* pull in the relevant register and map files. */
-
-#include <mach/map.h>
-
-	/* note, for the boot process to work we have to keep the UART
-	 * virtual address aligned to an 1MiB boundary for the L1
-	 * mapping the head code makes. We keep the UART virtual address
-	 * aligned and add in the offset when we load the value here.
-	 */
-
-	.macro addruart, rp, rv, tmp
-		mrc	p15, 0, \tmp, c0, c0, 0
-		and	\tmp, \tmp, #0xf0
-		teq	\tmp, #0xf0		@@ A15
-		ldreq	\rp, =EXYNOS5_PA_UART
-		movne	\rp, #EXYNOS4_PA_UART	@@ EXYNOS4
-		ldr	\rv, =S3C_VA_UART
-#if CONFIG_DEBUG_S3C_UART != 0
-		add	\rp, \rp, #(0x10000 * CONFIG_DEBUG_S3C_UART)
-		add	\rv, \rv, #(0x10000 * CONFIG_DEBUG_S3C_UART)
-#endif
-	.endm
-
-#define fifo_full fifo_full_s5pv210
-#define fifo_level fifo_level_s5pv210
-
-#include <plat/debug-macro.S>
diff --git a/arch/arm/mach-exynos/include/mach/irqs.h b/arch/arm/mach-exynos/include/mach/irqs.h
index 1f4dc35cd4b..8bd5dde5fc7 100644
--- a/arch/arm/mach-exynos/include/mach/irqs.h
+++ b/arch/arm/mach-exynos/include/mach/irqs.h
@@ -466,7 +466,10 @@
 #define IRQ_TIMER_BASE			(IRQ_GPIO_END + 64)
 
 /* Set the default NR_IRQS */
+#define EXYNOS_NR_IRQS			(IRQ_TIMER_BASE + IRQ_TIMER_COUNT)
 
-#define NR_IRQS				(IRQ_TIMER_BASE + IRQ_TIMER_COUNT)
+#ifndef CONFIG_SPARSE_IRQ
+#define NR_IRQS				EXYNOS_NR_IRQS
+#endif
 
 #endif /* __ASM_ARCH_IRQS_H */
diff --git a/arch/arm/mach-exynos/mach-armlex4210.c b/arch/arm/mach-exynos/mach-armlex4210.c
index 685f29173af..2126f3503a3 100644
--- a/arch/arm/mach-exynos/mach-armlex4210.c
+++ b/arch/arm/mach-exynos/mach-armlex4210.c
@@ -25,6 +25,7 @@
 #include <plat/regs-srom.h>
 #include <plat/sdhci.h>
 
+#include <mach/irqs.h>
 #include <mach/map.h>
 
 #include "common.h"
diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index 1ea79730187..ab920e34bd0 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -53,6 +53,7 @@
 #include <plat/fimc-core.h>
 #include <plat/camport.h>
 
+#include <mach/irqs.h>
 #include <mach/map.h>
 
 #include "common.h"
diff --git a/arch/arm/mach-exynos/mach-origen.c b/arch/arm/mach-exynos/mach-origen.c
index 579d2d171da..f23ce40139c 100644
--- a/arch/arm/mach-exynos/mach-origen.c
+++ b/arch/arm/mach-exynos/mach-origen.c
@@ -46,6 +46,7 @@
 #include <plat/hdmi.h>
 
 #include <mach/map.h>
+#include <mach/irqs.h>
 
 #include <drm/exynos_drm.h>
 #include "common.h"
diff --git a/arch/arm/mach-exynos/mach-smdk4x12.c b/arch/arm/mach-exynos/mach-smdk4x12.c
index fe6149624b8..5df91236dbb 100644
--- a/arch/arm/mach-exynos/mach-smdk4x12.c
+++ b/arch/arm/mach-exynos/mach-smdk4x12.c
@@ -39,6 +39,7 @@
 #include <plat/regs-serial.h>
 #include <plat/sdhci.h>
 
+#include <mach/irqs.h>
 #include <mach/map.h>
 
 #include <drm/exynos_drm.h>
diff --git a/arch/arm/mach-exynos/mach-smdkv310.c b/arch/arm/mach-exynos/mach-smdkv310.c
index d71672922b1..9a1d3596d4c 100644
--- a/arch/arm/mach-exynos/mach-smdkv310.c
+++ b/arch/arm/mach-exynos/mach-smdkv310.c
@@ -43,6 +43,7 @@
 #include <plat/clock.h>
 #include <plat/hdmi.h>
 
+#include <mach/irqs.h>
 #include <mach/map.h>
 
 #include <drm/exynos_drm.h>
diff --git a/arch/arm/mach-exynos/setup-sdhci-gpio.c b/arch/arm/mach-exynos/setup-sdhci-gpio.c
index e8d08bf8965..d5b98c86673 100644
--- a/arch/arm/mach-exynos/setup-sdhci-gpio.c
+++ b/arch/arm/mach-exynos/setup-sdhci-gpio.c
@@ -19,8 +19,8 @@
 #include <linux/mmc/host.h>
 #include <linux/mmc/card.h>
 
+#include <mach/gpio.h>
 #include <plat/gpio-cfg.h>
-#include <plat/regs-sdhci.h>
 #include <plat/sdhci.h>
 
 void exynos4_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)