arch/arm/mach-shmobile/setup-r8a73a4.c

   1 /*
   2  * r8a73a4 processor support
   3  *
   4  * Copyright (C) 2013  Renesas Solutions Corp.
   5  * Copyright (C) 2013  Magnus Damm
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  19  */
  20 #include <linux/irq.h>
  21 #include <linux/kernel.h>
  22 #include <linux/of_platform.h>
  23 #include <linux/platform_data/irq-renesas-irqc.h>
  24 #include <linux/serial_sci.h>
  25 #include <linux/sh_dma.h>
  26 #include <linux/sh_timer.h>
  27 #include <mach/common.h>
  28 #include <mach/dma-register.h>
  29 #include <mach/irqs.h>
  30 #include <mach/r8a73a4.h>
  31 #include <asm/mach/arch.h>
  32
  33 static const struct resource pfc_resources[] = {
  34         DEFINE_RES_MEM(0xe6050000, 0x9000),
  35 };
  36
  37 void __init r8a73a4_pinmux_init(void)
  38 {
  39         platform_device_register_simple("pfc-r8a73a4", -1, pfc_resources,
  40                                         ARRAY_SIZE(pfc_resources));
  41 }
  42
  43 #define R8A73A4_SCIF(scif_type, _scscr, index, baseaddr, irq)   \
  44 static struct plat_sci_port scif##index##_platform_data = {     \
  45         .type           = scif_type,                            \
  46         .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,      \
  47         .scscr          = _scscr,                               \
  48 };                                                              \
  49                                                                 \
  50 static struct resource scif##index##_resources[] = {            \
  51         DEFINE_RES_MEM(baseaddr, 0x100),                        \
  52         DEFINE_RES_IRQ(irq),                                    \
  53 }
  54
  55 #define R8A73A4_SCIFA(index, baseaddr, irq)     \
  56         R8A73A4_SCIF(PORT_SCIFA, SCSCR_RE | SCSCR_TE | SCSCR_CKE0, \
  57                      index, baseaddr, irq)
  58
  59 #define R8A73A4_SCIFB(index, baseaddr, irq)     \
  60         R8A73A4_SCIF(PORT_SCIFB, SCSCR_RE | SCSCR_TE, \
  61                      index, baseaddr, irq)
  62
  63 R8A73A4_SCIFA(0, 0xe6c40000, gic_spi(144)); /* SCIFA0 */
  64 R8A73A4_SCIFA(1, 0xe6c50000, gic_spi(145)); /* SCIFA1 */
  65 R8A73A4_SCIFB(2, 0xe6c20000, gic_spi(148)); /* SCIFB0 */
  66 R8A73A4_SCIFB(3, 0xe6c30000, gic_spi(149)); /* SCIFB1 */
  67 R8A73A4_SCIFB(4, 0xe6ce0000, gic_spi(150)); /* SCIFB2 */
  68 R8A73A4_SCIFB(5, 0xe6cf0000, gic_spi(151)); /* SCIFB3 */
  69
  70 #define r8a73a4_register_scif(index)                                           \
  71         platform_device_register_resndata(&platform_bus, "sh-sci", index,      \
  72                                           scif##index##_resources,             \
  73                                           ARRAY_SIZE(scif##index##_resources), \
  74                                           &scif##index##_platform_data,        \
  75                                           sizeof(scif##index##_platform_data))
  76
  77 static const struct renesas_irqc_config irqc0_data = {
  78         .irq_base = irq_pin(0), /* IRQ0 -> IRQ31 */
  79 };
  80
  81 static const struct resource irqc0_resources[] = {
  82         DEFINE_RES_MEM(0xe61c0000, 0x200), /* IRQC Event Detector Block_0 */
  83         DEFINE_RES_IRQ(gic_spi(0)), /* IRQ0 */
  84         DEFINE_RES_IRQ(gic_spi(1)), /* IRQ1 */
  85         DEFINE_RES_IRQ(gic_spi(2)), /* IRQ2 */
  86         DEFINE_RES_IRQ(gic_spi(3)), /* IRQ3 */
  87         DEFINE_RES_IRQ(gic_spi(4)), /* IRQ4 */
  88         DEFINE_RES_IRQ(gic_spi(5)), /* IRQ5 */
  89         DEFINE_RES_IRQ(gic_spi(6)), /* IRQ6 */
  90         DEFINE_RES_IRQ(gic_spi(7)), /* IRQ7 */
  91         DEFINE_RES_IRQ(gic_spi(8)), /* IRQ8 */
  92         DEFINE_RES_IRQ(gic_spi(9)), /* IRQ9 */
  93         DEFINE_RES_IRQ(gic_spi(10)), /* IRQ10 */
  94         DEFINE_RES_IRQ(gic_spi(11)), /* IRQ11 */
  95         DEFINE_RES_IRQ(gic_spi(12)), /* IRQ12 */
  96         DEFINE_RES_IRQ(gic_spi(13)), /* IRQ13 */
  97         DEFINE_RES_IRQ(gic_spi(14)), /* IRQ14 */
  98         DEFINE_RES_IRQ(gic_spi(15)), /* IRQ15 */
  99         DEFINE_RES_IRQ(gic_spi(16)), /* IRQ16 */
 100         DEFINE_RES_IRQ(gic_spi(17)), /* IRQ17 */
 101         DEFINE_RES_IRQ(gic_spi(18)), /* IRQ18 */
 102         DEFINE_RES_IRQ(gic_spi(19)), /* IRQ19 */
 103         DEFINE_RES_IRQ(gic_spi(20)), /* IRQ20 */
 104         DEFINE_RES_IRQ(gic_spi(21)), /* IRQ21 */
 105         DEFINE_RES_IRQ(gic_spi(22)), /* IRQ22 */
 106         DEFINE_RES_IRQ(gic_spi(23)), /* IRQ23 */
 107         DEFINE_RES_IRQ(gic_spi(24)), /* IRQ24 */
 108         DEFINE_RES_IRQ(gic_spi(25)), /* IRQ25 */
 109         DEFINE_RES_IRQ(gic_spi(26)), /* IRQ26 */
 110         DEFINE_RES_IRQ(gic_spi(27)), /* IRQ27 */
 111         DEFINE_RES_IRQ(gic_spi(28)), /* IRQ28 */
 112         DEFINE_RES_IRQ(gic_spi(29)), /* IRQ29 */
 113         DEFINE_RES_IRQ(gic_spi(30)), /* IRQ30 */
 114         DEFINE_RES_IRQ(gic_spi(31)), /* IRQ31 */
 115 };
 116
 117 static const struct renesas_irqc_config irqc1_data = {
 118         .irq_base = irq_pin(32), /* IRQ32 -> IRQ57 */
 119 };
 120
 121 static const struct resource irqc1_resources[] = {
 122         DEFINE_RES_MEM(0xe61c0200, 0x200), /* IRQC Event Detector Block_1 */
 123         DEFINE_RES_IRQ(gic_spi(32)), /* IRQ32 */
 124         DEFINE_RES_IRQ(gic_spi(33)), /* IRQ33 */
 125         DEFINE_RES_IRQ(gic_spi(34)), /* IRQ34 */
 126         DEFINE_RES_IRQ(gic_spi(35)), /* IRQ35 */
 127         DEFINE_RES_IRQ(gic_spi(36)), /* IRQ36 */
 128         DEFINE_RES_IRQ(gic_spi(37)), /* IRQ37 */
 129         DEFINE_RES_IRQ(gic_spi(38)), /* IRQ38 */
 130         DEFINE_RES_IRQ(gic_spi(39)), /* IRQ39 */
 131         DEFINE_RES_IRQ(gic_spi(40)), /* IRQ40 */
 132         DEFINE_RES_IRQ(gic_spi(41)), /* IRQ41 */
 133         DEFINE_RES_IRQ(gic_spi(42)), /* IRQ42 */
 134         DEFINE_RES_IRQ(gic_spi(43)), /* IRQ43 */
 135         DEFINE_RES_IRQ(gic_spi(44)), /* IRQ44 */
 136         DEFINE_RES_IRQ(gic_spi(45)), /* IRQ45 */
 137         DEFINE_RES_IRQ(gic_spi(46)), /* IRQ46 */
 138         DEFINE_RES_IRQ(gic_spi(47)), /* IRQ47 */
 139         DEFINE_RES_IRQ(gic_spi(48)), /* IRQ48 */
 140         DEFINE_RES_IRQ(gic_spi(49)), /* IRQ49 */
 141         DEFINE_RES_IRQ(gic_spi(50)), /* IRQ50 */
 142         DEFINE_RES_IRQ(gic_spi(51)), /* IRQ51 */
 143         DEFINE_RES_IRQ(gic_spi(52)), /* IRQ52 */
 144         DEFINE_RES_IRQ(gic_spi(53)), /* IRQ53 */
 145         DEFINE_RES_IRQ(gic_spi(54)), /* IRQ54 */
 146         DEFINE_RES_IRQ(gic_spi(55)), /* IRQ55 */
 147         DEFINE_RES_IRQ(gic_spi(56)), /* IRQ56 */
 148         DEFINE_RES_IRQ(gic_spi(57)), /* IRQ57 */
 149 };
 150
 151 #define r8a73a4_register_irqc(idx)                                      \
 152         platform_device_register_resndata(&platform_bus, "renesas_irqc", \
 153                                           idx, irqc##idx##_resources,   \
 154                                           ARRAY_SIZE(irqc##idx##_resources), \
 155                                           &irqc##idx##_data,            \
 156                                           sizeof(struct renesas_irqc_config))
 157
 158 /* Thermal0 -> Thermal2 */
 159 static const struct resource thermal0_resources[] = {
 160         DEFINE_RES_MEM(0xe61f0000, 0x14),
 161         DEFINE_RES_MEM(0xe61f0100, 0x38),
 162         DEFINE_RES_MEM(0xe61f0200, 0x38),
 163         DEFINE_RES_MEM(0xe61f0300, 0x38),
 164         DEFINE_RES_IRQ(gic_spi(69)),
 165 };
 166
 167 #define r8a73a4_register_thermal()                                      \
 168         platform_device_register_simple("rcar_thermal", -1,             \
 169                                         thermal0_resources,             \
 170                                         ARRAY_SIZE(thermal0_resources))
 171
 172 static struct sh_timer_config cmt1_platform_data = {
 173         .channels_mask = 0xff,
 174 };
 175
 176 static struct resource cmt1_resources[] = {
 177         DEFINE_RES_MEM(0xe6130000, 0x1004),
 178         DEFINE_RES_IRQ(gic_spi(120)),
 179 };
 180
 181 #define r8a7790_register_cmt(idx)                                       \
 182         platform_device_register_resndata(&platform_bus, "sh-cmt-48-gen2", \
 183                                           idx, cmt##idx##_resources,    \
 184                                           ARRAY_SIZE(cmt##idx##_resources), \
 185                                           &cmt##idx##_platform_data,    \
 186                                           sizeof(struct sh_timer_config))
 187
 188 void __init r8a73a4_add_dt_devices(void)
 189 {
 190         r8a73a4_register_scif(0);
 191         r8a73a4_register_scif(1);
 192         r8a73a4_register_scif(2);
 193         r8a73a4_register_scif(3);
 194         r8a73a4_register_scif(4);
 195         r8a73a4_register_scif(5);
 196         r8a7790_register_cmt(1);
 197 }
 198
 199 /* DMA */
 200 static const struct sh_dmae_slave_config dma_slaves[] = {
 201         {
 202                 .slave_id       = SHDMA_SLAVE_MMCIF0_TX,
 203                 .addr           = 0xee200034,
 204                 .chcr           = CHCR_TX(XMIT_SZ_32BIT),
 205                 .mid_rid        = 0xd1,
 206         }, {
 207                 .slave_id       = SHDMA_SLAVE_MMCIF0_RX,
 208                 .addr           = 0xee200034,
 209                 .chcr           = CHCR_RX(XMIT_SZ_32BIT),
 210                 .mid_rid        = 0xd2,
 211         }, {
 212                 .slave_id       = SHDMA_SLAVE_MMCIF1_TX,
 213                 .addr           = 0xee220034,
 214                 .chcr           = CHCR_TX(XMIT_SZ_32BIT),
 215                 .mid_rid        = 0xe1,
 216         }, {
 217                 .slave_id       = SHDMA_SLAVE_MMCIF1_RX,
 218                 .addr           = 0xee220034,
 219                 .chcr           = CHCR_RX(XMIT_SZ_32BIT),
 220                 .mid_rid        = 0xe2,
 221         },
 222 };
 223
 224 #define DMAE_CHANNEL(a, b)                              \
 225         {                                               \
 226                 .offset         = (a) - 0x20,           \
 227                 .dmars          = (a) - 0x20 + 0x40,    \
 228                 .chclr_bit      = (b),                  \
 229                 .chclr_offset   = 0x80 - 0x20,          \
 230         }
 231
 232 static const struct sh_dmae_channel dma_channels[] = {
 233         DMAE_CHANNEL(0x8000, 0),
 234         DMAE_CHANNEL(0x8080, 1),
 235         DMAE_CHANNEL(0x8100, 2),
 236         DMAE_CHANNEL(0x8180, 3),
 237         DMAE_CHANNEL(0x8200, 4),
 238         DMAE_CHANNEL(0x8280, 5),
 239         DMAE_CHANNEL(0x8300, 6),
 240         DMAE_CHANNEL(0x8380, 7),
 241         DMAE_CHANNEL(0x8400, 8),
 242         DMAE_CHANNEL(0x8480, 9),
 243         DMAE_CHANNEL(0x8500, 10),
 244         DMAE_CHANNEL(0x8580, 11),
 245         DMAE_CHANNEL(0x8600, 12),
 246         DMAE_CHANNEL(0x8680, 13),
 247         DMAE_CHANNEL(0x8700, 14),
 248         DMAE_CHANNEL(0x8780, 15),
 249         DMAE_CHANNEL(0x8800, 16),
 250         DMAE_CHANNEL(0x8880, 17),
 251         DMAE_CHANNEL(0x8900, 18),
 252         DMAE_CHANNEL(0x8980, 19),
 253 };
 254
 255 static const struct sh_dmae_pdata dma_pdata = {
 256         .slave          = dma_slaves,
 257         .slave_num      = ARRAY_SIZE(dma_slaves),
 258         .channel        = dma_channels,
 259         .channel_num    = ARRAY_SIZE(dma_channels),
 260         .ts_low_shift   = TS_LOW_SHIFT,
 261         .ts_low_mask    = TS_LOW_BIT << TS_LOW_SHIFT,
 262         .ts_high_shift  = TS_HI_SHIFT,
 263         .ts_high_mask   = TS_HI_BIT << TS_HI_SHIFT,
 264         .ts_shift       = dma_ts_shift,
 265         .ts_shift_num   = ARRAY_SIZE(dma_ts_shift),
 266         .dmaor_init     = DMAOR_DME,
 267         .chclr_present  = 1,
 268         .chclr_bitwise  = 1,
 269 };
 270
 271 static struct resource dma_resources[] = {
 272         DEFINE_RES_MEM(0xe6700020, 0x89e0),
 273         DEFINE_RES_IRQ(gic_spi(220)),
 274         {
 275                 /* IRQ for channels 0-19 */
 276                 .start  = gic_spi(200),
 277                 .end    = gic_spi(219),
 278                 .flags  = IORESOURCE_IRQ,
 279         },
 280 };
 281
 282 #define r8a73a4_register_dmac()                                                 \
 283         platform_device_register_resndata(&platform_bus, "sh-dma-engine", 0,    \
 284                                 dma_resources, ARRAY_SIZE(dma_resources),       \
 285                                 &dma_pdata, sizeof(dma_pdata))
 286
 287 void __init r8a73a4_add_standard_devices(void)
 288 {
 289         r8a73a4_add_dt_devices();
 290         r8a73a4_register_irqc(0);
 291         r8a73a4_register_irqc(1);
 292         r8a73a4_register_thermal();
 293         r8a73a4_register_dmac();
 294 }
 295
 296 void __init r8a73a4_init_early(void)
 297 {
 298 #ifndef CONFIG_ARM_ARCH_TIMER
 299         shmobile_setup_delay(1500, 2, 4); /* Cortex-A15 @ 1500MHz */
 300 #endif
 301 }
 302
 303 #ifdef CONFIG_USE_OF
 304
 305 static const char *r8a73a4_boards_compat_dt[] __initdata = {
 306         "renesas,r8a73a4",
 307         NULL,
 308 };
 309
 310 DT_MACHINE_START(R8A73A4_DT, "Generic R8A73A4 (Flattened Device Tree)")
 311         .init_early     = r8a73a4_init_early,
 312         .dt_compat      = r8a73a4_boards_compat_dt,
 313 MACHINE_END
 314 #endif /* CONFIG_USE_OF */