diff options
| author | Arun Kumar K <arun.kk@samsung.com> | 2012-10-23 13:51:33 (GMT) |
|---|---|---|
| committer | Kukjin Kim <kgene.kim@samsung.com> | 2012-10-19 01:26:31 (GMT) |
| commit | 2eae613b95a786714bd1b5825ea3abc78d229d3f (patch) | |
| tree | 01999929d439e632ee08e1f3ec79bf5cd1ba3d28 /arch/arm/plat-samsung | |
| parent | 70191db9308e33b5d0063f3a4a6ad22abf594a9d (diff) | |
| download | linux-2eae613b95a786714bd1b5825ea3abc78d229d3f.tar.xz | |
ARM: EXYNOS: Add MFC device tree support
This patch adds device tree entry for MFC v6 in the Exynos5
SoC. Makes the required changes in the clock files and adds
MFC to the DT device list.
Signed-off-by: Naveen Krishna Chatradhi <ch.naveen@samsung.com>
Signed-off-by: Arun Kumar K <arun.kk@samsung.com>
[kgene.kim@samsung.com: fixed section mismatches Seung-Woo Kim reported]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Diffstat (limited to 'arch/arm/plat-samsung')
| -rw-r--r-- | arch/arm/plat-samsung/devs.c | 1 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/include/plat/mfc.h | 11 | ||||
| -rw-r--r-- | arch/arm/plat-samsung/s5p-dev-mfc.c | 34 |
3 files changed, 46 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 03f654d..52dfa8f 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 ac13227..e6d7c42 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 ad60894..5ec104b 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 |