diff options
Diffstat (limited to 'arch/arm/mach-exynos/dev-sysmmu.c')
| -rw-r--r-- | arch/arm/mach-exynos/dev-sysmmu.c | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/arch/arm/mach-exynos/dev-sysmmu.c b/arch/arm/mach-exynos/dev-sysmmu.c new file mode 100644 index 00000000..781563fc --- /dev/null +++ b/arch/arm/mach-exynos/dev-sysmmu.c @@ -0,0 +1,233 @@ +/* linux/arch/arm/mach-exynos4/dev-sysmmu.c + * + * Copyright (c) 2010 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * EXYNOS4 - System MMU support + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/platform_device.h> +#include <linux/dma-mapping.h> +#include <linux/export.h> + +#include <mach/map.h> +#include <mach/irqs.h> +#include <mach/sysmmu.h> +#include <plat/s5p-clock.h> + +/* These names must be equal to the clock names in mach-exynos4/clock.c */ +const char *sysmmu_ips_name[EXYNOS4_SYSMMU_TOTAL_IPNUM] = { + "SYSMMU_MDMA" , + "SYSMMU_SSS" , + "SYSMMU_FIMC0" , + "SYSMMU_FIMC1" , + "SYSMMU_FIMC2" , + "SYSMMU_FIMC3" , + "SYSMMU_JPEG" , + "SYSMMU_FIMD0" , + "SYSMMU_FIMD1" , + "SYSMMU_PCIe" , + "SYSMMU_G2D" , + "SYSMMU_ROTATOR", + "SYSMMU_MDMA2" , + "SYSMMU_TV" , + "SYSMMU_MFC_L" , + "SYSMMU_MFC_R" , +}; + +static struct resource exynos4_sysmmu_resource[] = { + [0] = { + .start = EXYNOS4_PA_SYSMMU_MDMA, + .end = EXYNOS4_PA_SYSMMU_MDMA + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_SYSMMU_MDMA0_0, + .end = IRQ_SYSMMU_MDMA0_0, + .flags = IORESOURCE_IRQ, + }, + [2] = { + .start = EXYNOS4_PA_SYSMMU_SSS, + .end = EXYNOS4_PA_SYSMMU_SSS + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [3] = { + .start = IRQ_SYSMMU_SSS_0, + .end = IRQ_SYSMMU_SSS_0, + .flags = IORESOURCE_IRQ, + }, + [4] = { + .start = EXYNOS4_PA_SYSMMU_FIMC0, + .end = EXYNOS4_PA_SYSMMU_FIMC0 + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [5] = { + .start = IRQ_SYSMMU_FIMC0_0, + .end = IRQ_SYSMMU_FIMC0_0, + .flags = IORESOURCE_IRQ, + }, + [6] = { + .start = EXYNOS4_PA_SYSMMU_FIMC1, + .end = EXYNOS4_PA_SYSMMU_FIMC1 + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [7] = { + .start = IRQ_SYSMMU_FIMC1_0, + .end = IRQ_SYSMMU_FIMC1_0, + .flags = IORESOURCE_IRQ, + }, + [8] = { + .start = EXYNOS4_PA_SYSMMU_FIMC2, + .end = EXYNOS4_PA_SYSMMU_FIMC2 + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [9] = { + .start = IRQ_SYSMMU_FIMC2_0, + .end = IRQ_SYSMMU_FIMC2_0, + .flags = IORESOURCE_IRQ, + }, + [10] = { + .start = EXYNOS4_PA_SYSMMU_FIMC3, + .end = EXYNOS4_PA_SYSMMU_FIMC3 + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [11] = { + .start = IRQ_SYSMMU_FIMC3_0, + .end = IRQ_SYSMMU_FIMC3_0, + .flags = IORESOURCE_IRQ, + }, + [12] = { + .start = EXYNOS4_PA_SYSMMU_JPEG, + .end = EXYNOS4_PA_SYSMMU_JPEG + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [13] = { + .start = IRQ_SYSMMU_JPEG_0, + .end = IRQ_SYSMMU_JPEG_0, + .flags = IORESOURCE_IRQ, + }, + [14] = { + .start = EXYNOS4_PA_SYSMMU_FIMD0, + .end = EXYNOS4_PA_SYSMMU_FIMD0 + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [15] = { + .start = IRQ_SYSMMU_LCD0_M0_0, + .end = IRQ_SYSMMU_LCD0_M0_0, + .flags = IORESOURCE_IRQ, + }, + [16] = { + .start = EXYNOS4_PA_SYSMMU_FIMD1, + .end = EXYNOS4_PA_SYSMMU_FIMD1 + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [17] = { + .start = IRQ_SYSMMU_LCD1_M1_0, + .end = IRQ_SYSMMU_LCD1_M1_0, + .flags = IORESOURCE_IRQ, + }, + [18] = { + .start = EXYNOS4_PA_SYSMMU_PCIe, + .end = EXYNOS4_PA_SYSMMU_PCIe + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [19] = { + .start = IRQ_SYSMMU_PCIE_0, + .end = IRQ_SYSMMU_PCIE_0, + .flags = IORESOURCE_IRQ, + }, + [20] = { + .start = EXYNOS4_PA_SYSMMU_G2D, + .end = EXYNOS4_PA_SYSMMU_G2D + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [21] = { + .start = IRQ_SYSMMU_2D_0, + .end = IRQ_SYSMMU_2D_0, + .flags = IORESOURCE_IRQ, + }, + [22] = { + .start = EXYNOS4_PA_SYSMMU_ROTATOR, + .end = EXYNOS4_PA_SYSMMU_ROTATOR + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [23] = { + .start = IRQ_SYSMMU_ROTATOR_0, + .end = IRQ_SYSMMU_ROTATOR_0, + .flags = IORESOURCE_IRQ, + }, + [24] = { + .start = EXYNOS4_PA_SYSMMU_MDMA2, + .end = EXYNOS4_PA_SYSMMU_MDMA2 + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [25] = { + .start = IRQ_SYSMMU_MDMA1_0, + .end = IRQ_SYSMMU_MDMA1_0, + .flags = IORESOURCE_IRQ, + }, + [26] = { + .start = EXYNOS4_PA_SYSMMU_TV, + .end = EXYNOS4_PA_SYSMMU_TV + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [27] = { + .start = IRQ_SYSMMU_TV_M0_0, + .end = IRQ_SYSMMU_TV_M0_0, + .flags = IORESOURCE_IRQ, + }, + [28] = { + .start = EXYNOS4_PA_SYSMMU_MFC_L, + .end = EXYNOS4_PA_SYSMMU_MFC_L + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [29] = { + .start = IRQ_SYSMMU_MFC_M0_0, + .end = IRQ_SYSMMU_MFC_M0_0, + .flags = IORESOURCE_IRQ, + }, + [30] = { + .start = EXYNOS4_PA_SYSMMU_MFC_R, + .end = EXYNOS4_PA_SYSMMU_MFC_R + SZ_64K - 1, + .flags = IORESOURCE_MEM, + }, + [31] = { + .start = IRQ_SYSMMU_MFC_M1_0, + .end = IRQ_SYSMMU_MFC_M1_0, + .flags = IORESOURCE_IRQ, + }, +}; + +struct platform_device exynos4_device_sysmmu = { + .name = "s5p-sysmmu", + .id = 32, + .num_resources = ARRAY_SIZE(exynos4_sysmmu_resource), + .resource = exynos4_sysmmu_resource, +}; +EXPORT_SYMBOL(exynos4_device_sysmmu); + +static struct clk *sysmmu_clk[S5P_SYSMMU_TOTAL_IPNUM]; +void sysmmu_clk_init(struct device *dev, sysmmu_ips ips) +{ + sysmmu_clk[ips] = clk_get(dev, sysmmu_ips_name[ips]); + if (IS_ERR(sysmmu_clk[ips])) + sysmmu_clk[ips] = NULL; + else + clk_put(sysmmu_clk[ips]); +} + +void sysmmu_clk_enable(sysmmu_ips ips) +{ + if (sysmmu_clk[ips]) + clk_enable(sysmmu_clk[ips]); +} + +void sysmmu_clk_disable(sysmmu_ips ips) +{ + if (sysmmu_clk[ips]) + clk_disable(sysmmu_clk[ips]); +} |