arch/arm/mach-exynos/dev-sysmmu.c

   1 /* linux/arch/arm/mach-exynos4/dev-sysmmu.c
   2  *
   3  * Copyright (c) 2010 Samsung Electronics Co., Ltd.
   4  *              http://www.samsung.com
   5  *
   6  * EXYNOS4 - System MMU support
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  */
  12
  13 #include <linux/platform_device.h>
  14 #include <linux/dma-mapping.h>
  15 #include <linux/export.h>
  16
  17 #include <mach/map.h>
  18 #include <mach/irqs.h>
  19 #include <mach/sysmmu.h>
  20 #include <plat/s5p-clock.h>
  21
  22 /* These names must be equal to the clock names in mach-exynos4/clock.c */
  23 const char *sysmmu_ips_name[EXYNOS4_SYSMMU_TOTAL_IPNUM] = {
  24         "SYSMMU_MDMA"   ,
  25         "SYSMMU_SSS"    ,
  26         "SYSMMU_FIMC0"  ,
  27         "SYSMMU_FIMC1"  ,
  28         "SYSMMU_FIMC2"  ,
  29         "SYSMMU_FIMC3"  ,
  30         "SYSMMU_JPEG"   ,
  31         "SYSMMU_FIMD0"  ,
  32         "SYSMMU_FIMD1"  ,
  33         "SYSMMU_PCIe"   ,
  34         "SYSMMU_G2D"    ,
  35         "SYSMMU_ROTATOR",
  36         "SYSMMU_MDMA2"  ,
  37         "SYSMMU_TV"     ,
  38         "SYSMMU_MFC_L"  ,
  39         "SYSMMU_MFC_R"  ,
  40 };
  41
  42 static struct resource exynos4_sysmmu_resource[] = {
  43         [0] = {
  44                 .start  = EXYNOS4_PA_SYSMMU_MDMA,
  45                 .end    = EXYNOS4_PA_SYSMMU_MDMA + SZ_64K - 1,
  46                 .flags  = IORESOURCE_MEM,
  47         },
  48         [1] = {
  49                 .start  = IRQ_SYSMMU_MDMA0_0,
  50                 .end    = IRQ_SYSMMU_MDMA0_0,
  51                 .flags  = IORESOURCE_IRQ,
  52         },
  53         [2] = {
  54                 .start  = EXYNOS4_PA_SYSMMU_SSS,
  55                 .end    = EXYNOS4_PA_SYSMMU_SSS + SZ_64K - 1,
  56                 .flags  = IORESOURCE_MEM,
  57         },
  58         [3] = {
  59                 .start  = IRQ_SYSMMU_SSS_0,
  60                 .end    = IRQ_SYSMMU_SSS_0,
  61                 .flags  = IORESOURCE_IRQ,
  62         },
  63         [4] = {
  64                 .start  = EXYNOS4_PA_SYSMMU_FIMC0,
  65                 .end    = EXYNOS4_PA_SYSMMU_FIMC0 + SZ_64K - 1,
  66                 .flags  = IORESOURCE_MEM,
  67         },
  68         [5] = {
  69                 .start  = IRQ_SYSMMU_FIMC0_0,
  70                 .end    = IRQ_SYSMMU_FIMC0_0,
  71                 .flags  = IORESOURCE_IRQ,
  72         },
  73         [6] = {
  74                 .start  = EXYNOS4_PA_SYSMMU_FIMC1,
  75                 .end    = EXYNOS4_PA_SYSMMU_FIMC1 + SZ_64K - 1,
  76                 .flags  = IORESOURCE_MEM,
  77         },
  78         [7] = {
  79                 .start  = IRQ_SYSMMU_FIMC1_0,
  80                 .end    = IRQ_SYSMMU_FIMC1_0,
  81                 .flags  = IORESOURCE_IRQ,
  82         },
  83         [8] = {
  84                 .start  = EXYNOS4_PA_SYSMMU_FIMC2,
  85                 .end    = EXYNOS4_PA_SYSMMU_FIMC2 + SZ_64K - 1,
  86                 .flags  = IORESOURCE_MEM,
  87         },
  88         [9] = {
  89                 .start  = IRQ_SYSMMU_FIMC2_0,
  90                 .end    = IRQ_SYSMMU_FIMC2_0,
  91                 .flags  = IORESOURCE_IRQ,
  92         },
  93         [10] = {
  94                 .start  = EXYNOS4_PA_SYSMMU_FIMC3,
  95                 .end    = EXYNOS4_PA_SYSMMU_FIMC3 + SZ_64K - 1,
  96                 .flags  = IORESOURCE_MEM,
  97         },
  98         [11] = {
  99                 .start  = IRQ_SYSMMU_FIMC3_0,
 100                 .end    = IRQ_SYSMMU_FIMC3_0,
 101                 .flags  = IORESOURCE_IRQ,
 102         },
 103         [12] = {
 104                 .start  = EXYNOS4_PA_SYSMMU_JPEG,
 105                 .end    = EXYNOS4_PA_SYSMMU_JPEG + SZ_64K - 1,
 106                 .flags  = IORESOURCE_MEM,
 107         },
 108         [13] = {
 109                 .start  = IRQ_SYSMMU_JPEG_0,
 110                 .end    = IRQ_SYSMMU_JPEG_0,
 111                 .flags  = IORESOURCE_IRQ,
 112         },
 113         [14] = {
 114                 .start  = EXYNOS4_PA_SYSMMU_FIMD0,
 115                 .end    = EXYNOS4_PA_SYSMMU_FIMD0 + SZ_64K - 1,
 116                 .flags  = IORESOURCE_MEM,
 117         },
 118         [15] = {
 119                 .start  = IRQ_SYSMMU_LCD0_M0_0,
 120                 .end    = IRQ_SYSMMU_LCD0_M0_0,
 121                 .flags  = IORESOURCE_IRQ,
 122         },
 123         [16] = {
 124                 .start  = EXYNOS4_PA_SYSMMU_FIMD1,
 125                 .end    = EXYNOS4_PA_SYSMMU_FIMD1 + SZ_64K - 1,
 126                 .flags  = IORESOURCE_MEM,
 127         },
 128         [17] = {
 129                 .start  = IRQ_SYSMMU_LCD1_M1_0,
 130                 .end    = IRQ_SYSMMU_LCD1_M1_0,
 131                 .flags  = IORESOURCE_IRQ,
 132         },
 133         [18] = {
 134                 .start  = EXYNOS4_PA_SYSMMU_PCIe,
 135                 .end    = EXYNOS4_PA_SYSMMU_PCIe + SZ_64K - 1,
 136                 .flags  = IORESOURCE_MEM,
 137         },
 138         [19] = {
 139                 .start  = IRQ_SYSMMU_PCIE_0,
 140                 .end    = IRQ_SYSMMU_PCIE_0,
 141                 .flags  = IORESOURCE_IRQ,
 142         },
 143         [20] = {
 144                 .start  = EXYNOS4_PA_SYSMMU_G2D,
 145                 .end    = EXYNOS4_PA_SYSMMU_G2D + SZ_64K - 1,
 146                 .flags  = IORESOURCE_MEM,
 147         },
 148         [21] = {
 149                 .start  = IRQ_SYSMMU_2D_0,
 150                 .end    = IRQ_SYSMMU_2D_0,
 151                 .flags  = IORESOURCE_IRQ,
 152         },
 153         [22] = {
 154                 .start  = EXYNOS4_PA_SYSMMU_ROTATOR,
 155                 .end    = EXYNOS4_PA_SYSMMU_ROTATOR + SZ_64K - 1,
 156                 .flags  = IORESOURCE_MEM,
 157         },
 158         [23] = {
 159                 .start  = IRQ_SYSMMU_ROTATOR_0,
 160                 .end    = IRQ_SYSMMU_ROTATOR_0,
 161                 .flags  = IORESOURCE_IRQ,
 162         },
 163         [24] = {
 164                 .start  = EXYNOS4_PA_SYSMMU_MDMA2,
 165                 .end    = EXYNOS4_PA_SYSMMU_MDMA2 + SZ_64K - 1,
 166                 .flags  = IORESOURCE_MEM,
 167         },
 168         [25] = {
 169                 .start  = IRQ_SYSMMU_MDMA1_0,
 170                 .end    = IRQ_SYSMMU_MDMA1_0,
 171                 .flags  = IORESOURCE_IRQ,
 172         },
 173         [26] = {
 174                 .start  = EXYNOS4_PA_SYSMMU_TV,
 175                 .end    = EXYNOS4_PA_SYSMMU_TV + SZ_64K - 1,
 176                 .flags  = IORESOURCE_MEM,
 177         },
 178         [27] = {
 179                 .start  = IRQ_SYSMMU_TV_M0_0,
 180                 .end    = IRQ_SYSMMU_TV_M0_0,
 181                 .flags  = IORESOURCE_IRQ,
 182         },
 183         [28] = {
 184                 .start  = EXYNOS4_PA_SYSMMU_MFC_L,
 185                 .end    = EXYNOS4_PA_SYSMMU_MFC_L + SZ_64K - 1,
 186                 .flags  = IORESOURCE_MEM,
 187         },
 188         [29] = {
 189                 .start  = IRQ_SYSMMU_MFC_M0_0,
 190                 .end    = IRQ_SYSMMU_MFC_M0_0,
 191                 .flags  = IORESOURCE_IRQ,
 192         },
 193         [30] = {
 194                 .start  = EXYNOS4_PA_SYSMMU_MFC_R,
 195                 .end    = EXYNOS4_PA_SYSMMU_MFC_R + SZ_64K - 1,
 196                 .flags  = IORESOURCE_MEM,
 197         },
 198         [31] = {
 199                 .start  = IRQ_SYSMMU_MFC_M1_0,
 200                 .end    = IRQ_SYSMMU_MFC_M1_0,
 201                 .flags  = IORESOURCE_IRQ,
 202         },
 203 };
 204
 205 struct platform_device exynos4_device_sysmmu = {
 206         .name           = "s5p-sysmmu",
 207         .id             = 32,
 208         .num_resources  = ARRAY_SIZE(exynos4_sysmmu_resource),
 209         .resource       = exynos4_sysmmu_resource,
 210 };
 211 EXPORT_SYMBOL(exynos4_device_sysmmu);
 212
 213 static struct clk *sysmmu_clk[S5P_SYSMMU_TOTAL_IPNUM];
 214 void sysmmu_clk_init(struct device *dev, sysmmu_ips ips)
 215 {
 216         sysmmu_clk[ips] = clk_get(dev, sysmmu_ips_name[ips]);
 217         if (IS_ERR(sysmmu_clk[ips]))
 218                 sysmmu_clk[ips] = NULL;
 219         else
 220                 clk_put(sysmmu_clk[ips]);
 221 }
 222
 223 void sysmmu_clk_enable(sysmmu_ips ips)
 224 {
 225         if (sysmmu_clk[ips])
 226                 clk_enable(sysmmu_clk[ips]);
 227 }
 228
 229 void sysmmu_clk_disable(sysmmu_ips ips)
 230 {
 231         if (sysmmu_clk[ips])
 232                 clk_disable(sysmmu_clk[ips]);
 233 }