8 files changed, 106 insertions, 74 deletions

diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index d30ec1a427ec..6b7a02ee8b93 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -15,6 +15,7 @@ obj-$(CONFIG_ARCH_R8A7740)	+= setup-r8a7740.o
 obj-$(CONFIG_ARCH_R8A7778)      += setup-r8a7778.o
 obj-$(CONFIG_ARCH_R8A7779)      += setup-r8a7779.o
 obj-$(CONFIG_ARCH_R8A7790)      += setup-r8a7790.o
+obj-$(CONFIG_ARCH_R8A7790)      += setup-r8a7790.o setup-rcar-gen2.o
 obj-$(CONFIG_ARCH_R8A7791)      += setup-r8a7791.o
 obj-$(CONFIG_ARCH_EMEV2)        += setup-emev2.o
 
diff --git a/arch/arm/mach-shmobile/board-lager-reference.c b/arch/arm/mach-shmobile/board-lager-reference.c
index d39a91b3ba48..1a1a4a888632 100644
--- a/arch/arm/mach-shmobile/board-lager-reference.c
+++ b/arch/arm/mach-shmobile/board-lager-reference.c
@@ -40,7 +40,7 @@ static const char *lager_boards_compat_dt[] __initdata = {
 DT_MACHINE_START(LAGER_DT, "lager")
         .smp            = smp_ops(r8a7790_smp_ops),
         .init_early     = r8a7790_init_early,
+        .init_time      = rcar_gen2_timer_init,
         .init_machine   = lager_add_standard_devices,
-        .init_time      = r8a7790_timer_init,
         .dt_compat      = lager_boards_compat_dt,
 MACHINE_END
diff --git a/arch/arm/mach-shmobile/board-lager.c b/arch/arm/mach-shmobile/board-lager.c
index ef3baaa79e6d..230bc9d67852 100644
--- a/arch/arm/mach-shmobile/board-lager.c
+++ b/arch/arm/mach-shmobile/board-lager.c
@@ -163,7 +163,7 @@ static const char *lager_boards_compat_dt[] __initdata = {
 DT_MACHINE_START(LAGER_DT, "lager")
         .smp            = smp_ops(r8a7790_smp_ops),
         .init_early     = r8a7790_init_early,
-        .init_time      = r8a7790_timer_init,
+        .init_time      = rcar_gen2_timer_init,
         .init_machine   = lager_add_standard_devices,
         .dt_compat      = lager_boards_compat_dt,
 MACHINE_END
diff --git a/arch/arm/mach-shmobile/clock-r8a7790.c b/arch/arm/mach-shmobile/clock-r8a7790.c
index 7661e898f376..a64f965c7da1 100644
--- a/arch/arm/mach-shmobile/clock-r8a7790.c
+++ b/arch/arm/mach-shmobile/clock-r8a7790.c
@@ -310,7 +310,7 @@ static struct clk_lookup lookups[] = {
 
 void __init r8a7790_clock_init(void)
 {
-        u32 mode = r8a7790_read_mode_pins();
+        u32 mode = rcar_gen2_read_mode_pins();
         int k, ret = 0;
 
         switch (mode & (MD(14) | MD(13))) {
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7790.h b/arch/arm/mach-shmobile/include/mach/r8a7790.h
index 79e731c83e50..5fbfa28b40b6 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7790.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7790.h
@@ -1,15 +1,13 @@
 #ifndef __ASM_R8A7790_H__
 #define __ASM_R8A7790_H__
 
+#include <mach/rcar-gen2.h>
+
 void r8a7790_add_standard_devices(void);
 void r8a7790_add_dt_devices(void);
 void r8a7790_clock_init(void);
 void r8a7790_pinmux_init(void);
 void r8a7790_init_early(void);
-void r8a7790_timer_init(void);
 extern struct smp_operations r8a7790_smp_ops;
 
-#define MD(nr) BIT(nr)
-u32 r8a7790_read_mode_pins(void);
-
 #endif /* __ASM_R8A7790_H__ */
diff --git a/arch/arm/mach-shmobile/include/mach/rcar-gen2.h b/arch/arm/mach-shmobile/include/mach/rcar-gen2.h
new file mode 100644
index 000000000000..43f606eb2d82
--- /dev/null
+++ b/arch/arm/mach-shmobile/include/mach/rcar-gen2.h
@@ -0,0 +1,8 @@
+#ifndef __ASM_RCAR_GEN2_H__
+#define __ASM_RCAR_GEN2_H__
+
+void rcar_gen2_timer_init(void);
+#define MD(nr) BIT(nr)
+u32 rcar_gen2_read_mode_pins(void);
+
+#endif /* __ASM_RCAR_GEN2_H__ */
diff --git a/arch/arm/mach-shmobile/setup-r8a7790.c b/arch/arm/mach-shmobile/setup-r8a7790.c
index c7e24eff9ba2..c47bcebbcb00 100644
--- a/arch/arm/mach-shmobile/setup-r8a7790.c
+++ b/arch/arm/mach-shmobile/setup-r8a7790.c
@@ -18,7 +18,6 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#include <linux/clocksource.h>
 #include <linux/irq.h>
 #include <linux/kernel.h>
 #include <linux/of_platform.h>
@@ -203,71 +202,6 @@ void __init r8a7790_add_standard_devices(void)
         r8a7790_register_thermal();
 }
 
-#define MODEMR 0xe6160060
-
-u32 __init r8a7790_read_mode_pins(void)
-{
-        void __iomem *modemr = ioremap_nocache(MODEMR, 4);
-        u32 mode;
-
-        BUG_ON(!modemr);
-        mode = ioread32(modemr);
-        iounmap(modemr);
-
-        return mode;
-}
-
-#define CNTCR 0
-#define CNTFID0 0x20
-
-void __init r8a7790_timer_init(void)
-{
-#ifdef CONFIG_ARM_ARCH_TIMER
-        u32 mode = r8a7790_read_mode_pins();
-        void __iomem *base;
-        int extal_mhz = 0;
-        u32 freq;
-
-        /* At Linux boot time the r8a7790 arch timer comes up
-         * with the counter disabled. Moreover, it may also report
-         * a potentially incorrect fixed 13 MHz frequency. To be
-         * correct these registers need to be updated to use the
-         * frequency EXTAL / 2 which can be determined by the MD pins.
-         */
-
-        switch (mode & (MD(14) | MD(13))) {
-        case 0:
-                extal_mhz = 15;
-                break;
-        case MD(13):
-                extal_mhz = 20;
-                break;
-        case MD(14):
-                extal_mhz = 26;
-                break;
-        case MD(13) | MD(14):
-                extal_mhz = 30;
-                break;
-        }
-
-        /* The arch timer frequency equals EXTAL / 2 */
-        freq = extal_mhz * (1000000 / 2);
-
-        /* Remap "armgcnt address map" space */
-        base = ioremap(0xe6080000, PAGE_SIZE);
-
-        /* Update registers with correct frequency */
-        iowrite32(freq, base + CNTFID0);
-        asm volatile("mcr p15, 0, %0, c14, c0, 0" : : "r" (freq));
-
-        /* make sure arch timer is started by setting bit 0 of CNTCR */
-        iowrite32(1, base + CNTCR);
-        iounmap(base);
-#endif /* CONFIG_ARM_ARCH_TIMER */
-
-        clocksource_of_init();
-}
-
 void __init r8a7790_init_early(void)
 {
 #ifndef CONFIG_ARM_ARCH_TIMER
@@ -285,7 +219,7 @@ static const char * const r8a7790_boards_compat_dt[] __initconst = {
 DT_MACHINE_START(R8A7790_DT, "Generic R8A7790 (Flattened Device Tree)")
         .smp            = smp_ops(r8a7790_smp_ops),
         .init_early     = r8a7790_init_early,
-        .init_time      = r8a7790_timer_init,
+        .init_time      = rcar_gen2_timer_init,
         .dt_compat      = r8a7790_boards_compat_dt,
 MACHINE_END
 #endif /* CONFIG_USE_OF */
diff --git a/arch/arm/mach-shmobile/setup-rcar-gen2.c b/arch/arm/mach-shmobile/setup-rcar-gen2.c
new file mode 100644
index 000000000000..5734c24bf6c7
--- /dev/null
+++ b/arch/arm/mach-shmobile/setup-rcar-gen2.c
@@ -0,0 +1,91 @@
+/*
+ * R-Car Generation 2 support
+ *
+ * Copyright (C) 2013  Renesas Solutions Corp.
+ * Copyright (C) 2013  Magnus Damm
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <linux/clocksource.h>
+#include <linux/io.h>
+#include <linux/kernel.h>
+#include <mach/common.h>
+#include <mach/rcar-gen2.h>
+#include <asm/mach/arch.h>
+
+#define MODEMR 0xe6160060
+
+u32 __init rcar_gen2_read_mode_pins(void)
+{
+        void __iomem *modemr = ioremap_nocache(MODEMR, 4);
+        u32 mode;
+
+        BUG_ON(!modemr);
+        mode = ioread32(modemr);
+        iounmap(modemr);
+
+        return mode;
+}
+
+#define CNTCR 0
+#define CNTFID0 0x20
+
+void __init rcar_gen2_timer_init(void)
+{
+#ifdef CONFIG_ARM_ARCH_TIMER
+        u32 mode = rcar_gen2_read_mode_pins();
+        void __iomem *base;
+        int extal_mhz = 0;
+        u32 freq;
+
+        /* At Linux boot time the r8a7790 arch timer comes up
+         * with the counter disabled. Moreover, it may also report
+         * a potentially incorrect fixed 13 MHz frequency. To be
+         * correct these registers need to be updated to use the
+         * frequency EXTAL / 2 which can be determined by the MD pins.
+         */
+
+        switch (mode & (MD(14) | MD(13))) {
+        case 0:
+                extal_mhz = 15;
+                break;
+        case MD(13):
+                extal_mhz = 20;
+                break;
+        case MD(14):
+                extal_mhz = 26;
+                break;
+        case MD(13) | MD(14):
+                extal_mhz = 30;
+                break;
+        }
+
+        /* The arch timer frequency equals EXTAL / 2 */
+        freq = extal_mhz * (1000000 / 2);
+
+        /* Remap "armgcnt address map" space */
+        base = ioremap(0xe6080000, PAGE_SIZE);
+
+        /* Update registers with correct frequency */
+        iowrite32(freq, base + CNTFID0);
+        asm volatile("mcr p15, 0, %0, c14, c0, 0" : : "r" (freq));
+
+        /* make sure arch timer is started by setting bit 0 of CNTCR */
+        iowrite32(1, base + CNTCR);
+        iounmap(base);
+#endif /* CONFIG_ARM_ARCH_TIMER */
+
+        clocksource_of_init();
+}