arm: exynos: realign the code to allow support for newer 64-bit platforms

The existing Exynos 32-bit platform support needs to be realigned in
order to support newer 64-bit Exynos platforms. The driver model will
be utlized for drivers on the 64-bit Exynos platforms and so some of
the older platform support code would not be required for the newer
64-bit Exynos platforms.

Cc: Minkyu Kang <mk7.kang@samsung.com>
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

5 files changed, 40 insertions, 5 deletions

diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index a6a7597..28a6a60 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -1,9 +1,32 @@
 if ARCH_EXYNOS
 
 choice
-	prompt "EXYNOS board select"
+	prompt "EXYNOS architecture type select"
 	optional
 
+config ARCH_EXYNOS4
+	bool "Exynos4 SoC family"
+	select CPU_V7
+	help
+	  Samsung Exynos4 SoC family are based on ARM Cortex-A9 CPU. There
+	  are multiple SoCs in this family including Exynos4210, Exynos4412,
+	  and Exynos4212.
+
+config ARCH_EXYNOS5
+	bool "Exynos5 SoC family"
+	select CPU_V7
+	help
+	  Samsung Exynos5 SoC family are based on ARM Cortex-A15 CPU (and
+	  Cortex-A7 CPU in big.LITTLE configuration). There are multiple SoCs
+	  in this family including Exynos5250, Exynos5420 and Exynos5800.
+
+endchoice
+
+if ARCH_EXYNOS4
+
+choice
+	prompt "EXYNOS4 board select"
+
 config TARGET_SMDKV310
 	select SUPPORT_SPL
 	bool "Exynos4210 SMDKV310 board"
@@ -25,6 +48,14 @@ config TARGET_TRATS2
 config TARGET_ODROID
 	bool "Exynos4412 Odroid board"
 
+endchoice
+endif
+
+if ARCH_EXYNOS5
+
+choice
+	prompt "EXYNOS5 board select"
+
 config TARGET_ODROID_XU3
 	bool "Exynos5422 Odroid board"
 	select OF_CONTROL
@@ -68,6 +99,7 @@ config TARGET_PEACH_PIT
 	select OF_CONTROL
 
 endchoice
+endif
 
 config SYS_SOC
 	default "exynos"
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index 8542f89..f3c07b7 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -5,7 +5,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-y	+= clock.o power.o soc.o system.o pinmux.o tzpc.o
+obj-y	+= soc.o
+obj-$(CONFIG_CPU_V7) += clock.o pinmux.o power.o system.o
 
 obj-$(CONFIG_EXYNOS5420)	+= sec_boot.o
 
@@ -13,6 +14,6 @@ ifdef CONFIG_SPL_BUILD
 obj-$(CONFIG_EXYNOS5)	+= clock_init_exynos5.o
 obj-$(CONFIG_EXYNOS5)	+= dmc_common.o dmc_init_ddr3.o
 obj-$(CONFIG_EXYNOS4210)+= dmc_init_exynos4.o clock_init_exynos4.o
-obj-y	+= spl_boot.o
+obj-y	+= spl_boot.o tzpc.o
 obj-y	+= lowlevel_init.o
 endif
diff --git a/arch/arm/mach-exynos/include/mach/cpu.h b/arch/arm/mach-exynos/include/mach/cpu.h
index 14a1692..f12e3d6 100644
--- a/arch/arm/mach-exynos/include/mach/cpu.h
+++ b/arch/arm/mach-exynos/include/mach/cpu.h
@@ -270,7 +270,7 @@ IS_EXYNOS_TYPE(exynos5420, 0x5420)
 IS_EXYNOS_TYPE(exynos5422, 0x5422)
 
 #define SAMSUNG_BASE(device, base)				\
-static inline unsigned int __attribute__((no_instrument_function)) \
+static inline unsigned long __attribute__((no_instrument_function)) \
 	samsung_get_base_##device(void) \
 {								\
 	if (cpu_is_exynos4()) {				\
diff --git a/arch/arm/mach-exynos/include/mach/gpio.h b/arch/arm/mach-exynos/include/mach/gpio.h
index 7fc8e61..81363bd 100644
--- a/arch/arm/mach-exynos/include/mach/gpio.h
+++ b/arch/arm/mach-exynos/include/mach/gpio.h
@@ -1349,7 +1349,7 @@ enum exynos5420_gpio_pin {
 };
 
 struct gpio_info {
-	unsigned int reg_addr;	/* Address of register for this part */
+	unsigned long reg_addr;	/* Address of register for this part */
 	unsigned int max_gpio;	/* Maximum GPIO in this part */
 };
 
diff --git a/arch/arm/mach-exynos/soc.c b/arch/arm/mach-exynos/soc.c
index 0f116b1..737a8dd 100644
--- a/arch/arm/mach-exynos/soc.c
+++ b/arch/arm/mach-exynos/soc.c
@@ -11,7 +11,9 @@
 
 void reset_cpu(ulong addr)
 {
+#ifdef CONFIG_CPU_V7
 	writel(0x1, samsung_get_base_swreset());
+#endif
 }
 
 #ifndef CONFIG_SYS_DCACHE_OFF