aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--Documentation/devicetree/bindings/media/s5p-mfc.txt23
-rw-r--r--arch/arm/boot/dts/exynos5250-smdk5250.dts5
-rw-r--r--arch/arm/boot/dts/exynos5250.dtsi6
-rw-r--r--arch/arm/mach-exynos/Kconfig1
-rw-r--r--arch/arm/mach-exynos/clock-exynos5.c2
-rw-r--r--arch/arm/mach-exynos/mach-exynos5-dt.c16
-rw-r--r--arch/arm/plat-samsung/devs.c1
-rw-r--r--arch/arm/plat-samsung/include/plat/mfc.h11
-rw-r--r--arch/arm/plat-samsung/s5p-dev-mfc.c34
9 files changed, 98 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/media/s5p-mfc.txt b/Documentation/devicetree/bindings/media/s5p-mfc.txt
new file mode 100644
index 00000000000..67ec3d4ccc7
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/s5p-mfc.txt
@@ -0,0 +1,23 @@
+* Samsung Multi Format Codec (MFC)
+
+Multi Format Codec (MFC) is the IP present in Samsung SoCs which
+supports high resolution decoding and encoding functionalities.
+The MFC device driver is a v4l2 driver which can encode/decode
+video raw/elementary streams and has support for all popular
+video codecs.
+
+Required properties:
+ - compatible : value should be either one among the following
+ (a) "samsung,mfc-v5" for MFC v5 present in Exynos4 SoCs
+ (b) "samsung,mfc-v6" for MFC v6 present in Exynos5 SoCs
+
+ - reg : Physical base address of the IP registers and length of memory
+ mapped region.
+
+ - interrupts : MFC interrupt number to the CPU.
+
+ - samsung,mfc-r : Base address of the first memory bank used by MFC
+ for DMA contiguous memory allocation and its size.
+
+ - samsung,mfc-l : Base address of the second memory bank used by MFC
+ for DMA contiguous memory allocation and its size.
diff --git a/arch/arm/boot/dts/exynos5250-smdk5250.dts b/arch/arm/boot/dts/exynos5250-smdk5250.dts
index a352df403b7..21d4ccdb0a5 100644
--- a/arch/arm/boot/dts/exynos5250-smdk5250.dts
+++ b/arch/arm/boot/dts/exynos5250-smdk5250.dts
@@ -166,4 +166,9 @@
spi_2: spi@12d40000 {
status = "disabled";
};
+
+ codec@11000000 {
+ samsung,mfc-r = <0x43000000 0x800000>;
+ samsung,mfc-l = <0x51000000 0x800000>;
+ };
};
diff --git a/arch/arm/boot/dts/exynos5250.dtsi b/arch/arm/boot/dts/exynos5250.dtsi
index dddfd6e444d..49546bc43ec 100644
--- a/arch/arm/boot/dts/exynos5250.dtsi
+++ b/arch/arm/boot/dts/exynos5250.dtsi
@@ -62,6 +62,12 @@
interrupts = <0 42 0>;
};
+ codec@11000000 {
+ compatible = "samsung,mfc-v6";
+ reg = <0x11000000 0x10000>;
+ interrupts = <0 96 0>;
+ };
+
rtc {
compatible = "samsung,s3c6410-rtc";
reg = <0x101E0000 0x100>;
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index da55107033d..bb3b09aa918 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -63,6 +63,7 @@ config SOC_EXYNOS5250
depends on ARCH_EXYNOS5
select S5P_PM if PM
select S5P_SLEEP if PM
+ select S5P_DEV_MFC
select SAMSUNG_DMADEV
help
Enable EXYNOS5250 SoC support
diff --git a/arch/arm/mach-exynos/clock-exynos5.c b/arch/arm/mach-exynos/clock-exynos5.c
index c44ca1ee1b8..8c4e3253cdb 100644
--- a/arch/arm/mach-exynos/clock-exynos5.c
+++ b/arch/arm/mach-exynos/clock-exynos5.c
@@ -664,7 +664,7 @@ static struct clk exynos5_init_clocks_off[] = {
.ctrlbit = (1 << 25),
}, {
.name = "mfc",
- .devname = "s5p-mfc",
+ .devname = "s5p-mfc-v6",
.enable = exynos5_clk_ip_mfc_ctrl,
.ctrlbit = (1 << 0),
}, {
diff --git a/arch/arm/mach-exynos/mach-exynos5-dt.c b/arch/arm/mach-exynos/mach-exynos5-dt.c
index db1cd8eacf2..b7f1154088b 100644
--- a/arch/arm/mach-exynos/mach-exynos5-dt.c
+++ b/arch/arm/mach-exynos/mach-exynos5-dt.c
@@ -11,6 +11,8 @@
#include <linux/of_platform.h>
#include <linux/serial_core.h>
+#include <linux/memblock.h>
+#include <linux/of_fdt.h>
#include <asm/mach/arch.h>
#include <asm/hardware/gic.h>
@@ -18,6 +20,7 @@
#include <plat/cpu.h>
#include <plat/regs-serial.h>
+#include <plat/mfc.h>
#include "common.h"
@@ -72,6 +75,7 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
"exynos-gsc.2", NULL),
OF_DEV_AUXDATA("samsung,exynos5-gsc", EXYNOS5_PA_GSC3,
"exynos-gsc.3", NULL),
+ OF_DEV_AUXDATA("samsung,mfc-v6", 0x11000000, "s5p-mfc-v6", NULL),
{},
};
@@ -92,6 +96,17 @@ static char const *exynos5250_dt_compat[] __initdata = {
NULL
};
+static void __init exynos5_reserve(void)
+{
+ struct s5p_mfc_dt_meminfo mfc_mem;
+
+ /* Reserve memory for MFC only if it's available */
+ mfc_mem.compatible = "samsung,mfc-v6";
+ 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);
+}
+
DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
/* Maintainer: Kukjin Kim <kgene.kim@samsung.com> */
.init_irq = exynos5_init_irq,
@@ -103,4 +118,5 @@ DT_MACHINE_START(EXYNOS5_DT, "SAMSUNG EXYNOS5 (Flattened Device Tree)")
.timer = &exynos4_timer,
.dt_compat = exynos5250_dt_compat,
.restart = exynos5_restart,
+ .reserve = exynos5_reserve,
MACHINE_END
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
index 03f654d55ef..52dfa8f914c 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -933,6 +933,7 @@ struct platform_device s5p_device_mfc_r = {
.coherent_dma_mask = DMA_BIT_MASK(32),
},
};
+
#endif /* CONFIG_S5P_DEV_MFC */
/* MIPI CSIS */
diff --git a/arch/arm/plat-samsung/include/plat/mfc.h b/arch/arm/plat-samsung/include/plat/mfc.h
index ac13227272f..e6d7c42d68b 100644
--- a/arch/arm/plat-samsung/include/plat/mfc.h
+++ b/arch/arm/plat-samsung/include/plat/mfc.h
@@ -10,6 +10,14 @@
#ifndef __PLAT_SAMSUNG_MFC_H
#define __PLAT_SAMSUNG_MFC_H __FILE__
+struct s5p_mfc_dt_meminfo {
+ unsigned long loff;
+ unsigned long lsize;
+ unsigned long roff;
+ unsigned long rsize;
+ char *compatible;
+};
+
/**
* s5p_mfc_reserve_mem - function to early reserve memory for MFC driver
* @rbase: base address for MFC 'right' memory interface
@@ -24,4 +32,7 @@
void __init s5p_mfc_reserve_mem(phys_addr_t rbase, unsigned int rsize,
phys_addr_t lbase, unsigned int lsize);
+int __init s5p_fdt_find_mfc_mem(unsigned long node, const char *uname,
+ int depth, void *data);
+
#endif /* __PLAT_SAMSUNG_MFC_H */
diff --git a/arch/arm/plat-samsung/s5p-dev-mfc.c b/arch/arm/plat-samsung/s5p-dev-mfc.c
index ad6089465e2..5ec104b5408 100644
--- a/arch/arm/plat-samsung/s5p-dev-mfc.c
+++ b/arch/arm/plat-samsung/s5p-dev-mfc.c
@@ -14,6 +14,8 @@
#include <linux/dma-mapping.h>
#include <linux/memblock.h>
#include <linux/ioport.h>
+#include <linux/of_fdt.h>
+#include <linux/of.h>
#include <mach/map.h>
#include <plat/devs.h>
@@ -69,3 +71,35 @@ static int __init s5p_mfc_memory_init(void)
return 0;
}
device_initcall(s5p_mfc_memory_init);
+
+#ifdef CONFIG_OF
+int __init s5p_fdt_find_mfc_mem(unsigned long node, const char *uname,
+ int depth, void *data)
+{
+ __be32 *prop;
+ unsigned long len;
+ struct s5p_mfc_dt_meminfo *mfc_mem = data;
+
+ if (!data)
+ return 0;
+
+ if (!of_flat_dt_is_compatible(node, mfc_mem->compatible))
+ return 0;
+
+ prop = of_get_flat_dt_prop(node, "samsung,mfc-l", &len);
+ if (!prop || (len != 2 * sizeof(unsigned long)))
+ return 0;
+
+ mfc_mem->loff = be32_to_cpu(prop[0]);
+ mfc_mem->lsize = be32_to_cpu(prop[1]);
+
+ prop = of_get_flat_dt_prop(node, "samsung,mfc-r", &len);
+ if (!prop || (len != 2 * sizeof(unsigned long)))
+ return 0;
+
+ mfc_mem->roff = be32_to_cpu(prop[0]);
+ mfc_mem->rsize = be32_to_cpu(prop[1]);
+
+ return 1;
+}
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-22 15:12:32 +0000