ARM: dts: Add MFC codec support for EXYNOS4 DT machines

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

3 files changed, 26 insertions, 0 deletions

diff --git a/arch/arm/boot/dts/exynos4.dtsi b/arch/arm/boot/dts/exynos4.dtsi
index e1347fceb5bc..6581bb2252e7 100644
--- a/arch/arm/boot/dts/exynos4.dtsi
+++ b/arch/arm/boot/dts/exynos4.dtsi
@@ -131,6 +131,14 @@
                 status = "disabled";
         };
 
+        mfc: codec@13400000 {
+                compatible = "samsung,mfc-v5";
+                reg = <0x13400000 0x10000>;
+                interrupts = <0 94 0>;
+                samsung,power-domain = <&pd_mfc>;
+                status = "disabled";
+        };
+
         serial@13800000 {
                 compatible = "samsung,exynos4210-uart";
                 reg = <0x13800000 0x100>;
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index 70f94c87479d..78bd3479c7e1 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -410,6 +410,7 @@ config MACH_EXYNOS4_DT
         select HAVE_SAMSUNG_KEYPAD if INPUT_KEYBOARD
         select PINCTRL
         select PINCTRL_EXYNOS
+        select S5P_DEV_MFC
         select USE_OF
         help
           Machine support for Samsung Exynos4 machine with device tree enabled.
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
index 3358088c822a..fad268f8548c 100644
--- a/arch/arm/mach-exynos/mach-exynos4-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -12,13 +12,16 @@
 */
 
 #include <linux/of_platform.h>
+#include <linux/of_fdt.h>
 #include <linux/serial_core.h>
+#include <linux/memblock.h>
 
 #include <asm/mach/arch.h>
 #include <mach/map.h>
 
 #include <plat/cpu.h>
 #include <plat/regs-serial.h>
+#include <plat/mfc.h>
 
 #include "common.h"
 
@@ -113,6 +116,7 @@ static const struct of_dev_auxdata exynos4_auxdata_lookup[] __initconst = {
                         "exynos-sysmmu.14", NULL), /* FIMC-LITE0(4x12) */
         OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x123C0000,
                         "exynos-sysmmu.15", NULL), /* FIMC-LITE1(4x12) */
+        OF_DEV_AUXDATA("samsung,mfc-v5", 0x13400000, "s5p-mfc", NULL),
         {},
 };
 
@@ -135,6 +139,18 @@ static char const *exynos4_dt_compat[] __initdata = {
         NULL
 };
 
+static void __init exynos4_reserve(void)
+{
+#ifdef CONFIG_S5P_DEV_MFC
+        struct s5p_mfc_dt_meminfo mfc_mem;
+
+        /* Reserve memory for MFC only if it's available */
+        mfc_mem.compatible = "samsung,mfc-v5";
+        if (of_scan_flat_dt(s5p_fdt_find_mfc_mem, &mfc_mem))
+                s5p_mfc_reserve_mem(mfc_mem.roff, mfc_mem.rsize, mfc_mem.loff,
+                                mfc_mem.lsize);
+#endif
+}
 DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
         /* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
         .smp            = smp_ops(exynos_smp_ops),
@@ -145,4 +161,5 @@ DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
         .init_time      = exynos4_timer_init,
         .dt_compat      = exynos4_dt_compat,
         .restart        = exynos4_restart,
+        .reserve        = exynos4_reserve,
 MACHINE_END