From 2eae613b95a786714bd1b5825ea3abc78d229d3f Mon Sep 17 00:00:00 2001 From: Arun Kumar K Date: Tue, 23 Oct 2012 22:51:33 +0900 Subject: 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 Signed-off-by: Arun Kumar K [kgene.kim@samsung.com: fixed section mismatches Seung-Woo Kim reported] Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/devs.c | 1 + arch/arm/plat-samsung/include/plat/mfc.h | 11 +++++++++++ arch/arm/plat-samsung/s5p-dev-mfc.c | 34 ++++++++++++++++++++++++++++++++ 3 files changed, 46 insertions(+) (limited to 'arch/arm/plat-samsung') diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c index 03f654d55eff..52dfa8f914c7 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 ac13227272f0..e6d7c42d68b6 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 ad6089465e2a..5ec104b5408b 100644 --- a/arch/arm/plat-samsung/s5p-dev-mfc.c +++ b/arch/arm/plat-samsung/s5p-dev-mfc.c @@ -14,6 +14,8 @@ #include #include #include +#include +#include #include #include @@ -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 -- cgit v1.2.3