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 28 #include <asm/mach/arch.h> 29 30 #include "common.h" 31 #include "dma-register.h" 32 #include "irqs.h" 33 #include "r8a73a4.h" 34 35 static const struct resource pfc_resources[] = { 36 DEFINE_RES_MEM(0xe6050000, 0x9000), 37 }; 38 39 void __init r8a73a4_pinmux_init(void) 40 { 41 platform_device_register_simple("pfc-r8a73a4", -1, pfc_resources, 42 ARRAY_SIZE(pfc_resources)); 43 } 44 45 #define R8A73A4_SCIF(scif_type, _scscr, index, baseaddr, irq) \ 46 static struct plat_sci_port scif##index##_platform_data = { \ 47 .type = scif_type, \ 48 .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, \ 49 .scscr = _scscr, \ 50 }; \ 51 \ 52 static struct resource scif##index##_resources[] = { \ 53 DEFINE_RES_MEM(baseaddr, 0x100), \ 54 DEFINE_RES_IRQ(irq), \ 55 } 56 57 #define R8A73A4_SCIFA(index, baseaddr, irq) \ 58 R8A73A4_SCIF(PORT_SCIFA, SCSCR_RE | SCSCR_TE | SCSCR_CKE0, \ 59 index, baseaddr, irq) 60 61 #define R8A73A4_SCIFB(index, baseaddr, irq) \ 62 R8A73A4_SCIF(PORT_SCIFB, SCSCR_RE | SCSCR_TE, \ 63 index, baseaddr, irq) 64 65 R8A73A4_SCIFA(0, 0xe6c40000, gic_spi(144)); /* SCIFA0 */ 66 R8A73A4_SCIFA(1, 0xe6c50000, gic_spi(145)); /* SCIFA1 */ 67 R8A73A4_SCIFB(2, 0xe6c20000, gic_spi(148)); /* SCIFB0 */ 68 R8A73A4_SCIFB(3, 0xe6c30000, gic_spi(149)); /* SCIFB1 */ 69 R8A73A4_SCIFB(4, 0xe6ce0000, gic_spi(150)); /* SCIFB2 */ 70 R8A73A4_SCIFB(5, 0xe6cf0000, gic_spi(151)); /* SCIFB3 */ 71 72 #define r8a73a4_register_scif(index) \ 73 platform_device_register_resndata(NULL, "sh-sci", index, \ 74 scif##index##_resources, \ 75 ARRAY_SIZE(scif##index##_resources), \ 76 &scif##index##_platform_data, \ 77 sizeof(scif##index##_platform_data)) 78 79 static const struct renesas_irqc_config irqc0_data = { 80 .irq_base = irq_pin(0), /* IRQ0 -> IRQ31 */ 81 }; 82 83 static const struct resource irqc0_resources[] = { 84 DEFINE_RES_MEM(0xe61c0000, 0x200), /* IRQC Event Detector Block_0 */ 85 DEFINE_RES_IRQ(gic_spi(0)), /* IRQ0 */ 86 DEFINE_RES_IRQ(gic_spi(1)), /* IRQ1 */ 87 DEFINE_RES_IRQ(gic_spi(2)), /* IRQ2 */ 88 DEFINE_RES_IRQ(gic_spi(3)), /* IRQ3 */ 89 DEFINE_RES_IRQ(gic_spi(4)), /* IRQ4 */ 90 DEFINE_RES_IRQ(gic_spi(5)), /* IRQ5 */ 91 DEFINE_RES_IRQ(gic_spi(6)), /* IRQ6 */ 92 DEFINE_RES_IRQ(gic_spi(7)), /* IRQ7 */ 93 DEFINE_RES_IRQ(gic_spi(8)), /* IRQ8 */ 94 DEFINE_RES_IRQ(gic_spi(9)), /* IRQ9 */ 95 DEFINE_RES_IRQ(gic_spi(10)), /* IRQ10 */ 96 DEFINE_RES_IRQ(gic_spi(11)), /* IRQ11 */ 97 DEFINE_RES_IRQ(gic_spi(12)), /* IRQ12 */ 98 DEFINE_RES_IRQ(gic_spi(13)), /* IRQ13 */ 99 DEFINE_RES_IRQ(gic_spi(14)), /* IRQ14 */ 100 DEFINE_RES_IRQ(gic_spi(15)), /* IRQ15 */ 101 DEFINE_RES_IRQ(gic_spi(16)), /* IRQ16 */ 102 DEFINE_RES_IRQ(gic_spi(17)), /* IRQ17 */ 103 DEFINE_RES_IRQ(gic_spi(18)), /* IRQ18 */ 104 DEFINE_RES_IRQ(gic_spi(19)), /* IRQ19 */ 105 DEFINE_RES_IRQ(gic_spi(20)), /* IRQ20 */ 106 DEFINE_RES_IRQ(gic_spi(21)), /* IRQ21 */ 107 DEFINE_RES_IRQ(gic_spi(22)), /* IRQ22 */ 108 DEFINE_RES_IRQ(gic_spi(23)), /* IRQ23 */ 109 DEFINE_RES_IRQ(gic_spi(24)), /* IRQ24 */ 110 DEFINE_RES_IRQ(gic_spi(25)), /* IRQ25 */ 111 DEFINE_RES_IRQ(gic_spi(26)), /* IRQ26 */ 112 DEFINE_RES_IRQ(gic_spi(27)), /* IRQ27 */ 113 DEFINE_RES_IRQ(gic_spi(28)), /* IRQ28 */ 114 DEFINE_RES_IRQ(gic_spi(29)), /* IRQ29 */ 115 DEFINE_RES_IRQ(gic_spi(30)), /* IRQ30 */ 116 DEFINE_RES_IRQ(gic_spi(31)), /* IRQ31 */ 117 }; 118 119 static const struct renesas_irqc_config irqc1_data = { 120 .irq_base = irq_pin(32), /* IRQ32 -> IRQ57 */ 121 }; 122 123 static const struct resource irqc1_resources[] = { 124 DEFINE_RES_MEM(0xe61c0200, 0x200), /* IRQC Event Detector Block_1 */ 125 DEFINE_RES_IRQ(gic_spi(32)), /* IRQ32 */ 126 DEFINE_RES_IRQ(gic_spi(33)), /* IRQ33 */ 127 DEFINE_RES_IRQ(gic_spi(34)), /* IRQ34 */ 128 DEFINE_RES_IRQ(gic_spi(35)), /* IRQ35 */ 129 DEFINE_RES_IRQ(gic_spi(36)), /* IRQ36 */ 130 DEFINE_RES_IRQ(gic_spi(37)), /* IRQ37 */ 131 DEFINE_RES_IRQ(gic_spi(38)), /* IRQ38 */ 132 DEFINE_RES_IRQ(gic_spi(39)), /* IRQ39 */ 133 DEFINE_RES_IRQ(gic_spi(40)), /* IRQ40 */ 134 DEFINE_RES_IRQ(gic_spi(41)), /* IRQ41 */ 135 DEFINE_RES_IRQ(gic_spi(42)), /* IRQ42 */ 136 DEFINE_RES_IRQ(gic_spi(43)), /* IRQ43 */ 137 DEFINE_RES_IRQ(gic_spi(44)), /* IRQ44 */ 138 DEFINE_RES_IRQ(gic_spi(45)), /* IRQ45 */ 139 DEFINE_RES_IRQ(gic_spi(46)), /* IRQ46 */ 140 DEFINE_RES_IRQ(gic_spi(47)), /* IRQ47 */ 141 DEFINE_RES_IRQ(gic_spi(48)), /* IRQ48 */ 142 DEFINE_RES_IRQ(gic_spi(49)), /* IRQ49 */ 143 DEFINE_RES_IRQ(gic_spi(50)), /* IRQ50 */ 144 DEFINE_RES_IRQ(gic_spi(51)), /* IRQ51 */ 145 DEFINE_RES_IRQ(gic_spi(52)), /* IRQ52 */ 146 DEFINE_RES_IRQ(gic_spi(53)), /* IRQ53 */ 147 DEFINE_RES_IRQ(gic_spi(54)), /* IRQ54 */ 148 DEFINE_RES_IRQ(gic_spi(55)), /* IRQ55 */ 149 DEFINE_RES_IRQ(gic_spi(56)), /* IRQ56 */ 150 DEFINE_RES_IRQ(gic_spi(57)), /* IRQ57 */ 151 }; 152 153 #define r8a73a4_register_irqc(idx) \ 154 platform_device_register_resndata(NULL, "renesas_irqc", \ 155 idx, irqc##idx##_resources, \ 156 ARRAY_SIZE(irqc##idx##_resources), \ 157 &irqc##idx##_data, \ 158 sizeof(struct renesas_irqc_config)) 159 160 /* Thermal0 -> Thermal2 */ 161 static const struct resource thermal0_resources[] = { 162 DEFINE_RES_MEM(0xe61f0000, 0x14), 163 DEFINE_RES_MEM(0xe61f0100, 0x38), 164 DEFINE_RES_MEM(0xe61f0200, 0x38), 165 DEFINE_RES_MEM(0xe61f0300, 0x38), 166 DEFINE_RES_IRQ(gic_spi(69)), 167 }; 168 169 #define r8a73a4_register_thermal() \ 170 platform_device_register_simple("rcar_thermal", -1, \ 171 thermal0_resources, \ 172 ARRAY_SIZE(thermal0_resources)) 173 174 static struct sh_timer_config cmt1_platform_data = { 175 .channels_mask = 0xff, 176 }; 177 178 static struct resource cmt1_resources[] = { 179 DEFINE_RES_MEM(0xe6130000, 0x1004), 180 DEFINE_RES_IRQ(gic_spi(120)), 181 }; 182 183 #define r8a7790_register_cmt(idx) \ 184 platform_device_register_resndata(NULL, "sh-cmt-48-gen2", \ 185 idx, cmt##idx##_resources, \ 186 ARRAY_SIZE(cmt##idx##_resources), \ 187 &cmt##idx##_platform_data, \ 188 sizeof(struct sh_timer_config)) 189 190 void __init r8a73a4_add_dt_devices(void) 191 { 192 r8a7790_register_cmt(1); 193 } 194 195 /* DMA */ 196 static const struct sh_dmae_slave_config dma_slaves[] = { 197 { 198 .slave_id = SHDMA_SLAVE_MMCIF0_TX, 199 .addr = 0xee200034, 200 .chcr = CHCR_TX(XMIT_SZ_32BIT), 201 .mid_rid = 0xd1, 202 }, { 203 .slave_id = SHDMA_SLAVE_MMCIF0_RX, 204 .addr = 0xee200034, 205 .chcr = CHCR_RX(XMIT_SZ_32BIT), 206 .mid_rid = 0xd2, 207 }, { 208 .slave_id = SHDMA_SLAVE_MMCIF1_TX, 209 .addr = 0xee220034, 210 .chcr = CHCR_TX(XMIT_SZ_32BIT), 211 .mid_rid = 0xe1, 212 }, { 213 .slave_id = SHDMA_SLAVE_MMCIF1_RX, 214 .addr = 0xee220034, 215 .chcr = CHCR_RX(XMIT_SZ_32BIT), 216 .mid_rid = 0xe2, 217 }, 218 }; 219 220 #define DMAE_CHANNEL(a, b) \ 221 { \ 222 .offset = (a) - 0x20, \ 223 .dmars = (a) - 0x20 + 0x40, \ 224 .chclr_bit = (b), \ 225 .chclr_offset = 0x80 - 0x20, \ 226 } 227 228 static const struct sh_dmae_channel dma_channels[] = { 229 DMAE_CHANNEL(0x8000, 0), 230 DMAE_CHANNEL(0x8080, 1), 231 DMAE_CHANNEL(0x8100, 2), 232 DMAE_CHANNEL(0x8180, 3), 233 DMAE_CHANNEL(0x8200, 4), 234 DMAE_CHANNEL(0x8280, 5), 235 DMAE_CHANNEL(0x8300, 6), 236 DMAE_CHANNEL(0x8380, 7), 237 DMAE_CHANNEL(0x8400, 8), 238 DMAE_CHANNEL(0x8480, 9), 239 DMAE_CHANNEL(0x8500, 10), 240 DMAE_CHANNEL(0x8580, 11), 241 DMAE_CHANNEL(0x8600, 12), 242 DMAE_CHANNEL(0x8680, 13), 243 DMAE_CHANNEL(0x8700, 14), 244 DMAE_CHANNEL(0x8780, 15), 245 DMAE_CHANNEL(0x8800, 16), 246 DMAE_CHANNEL(0x8880, 17), 247 DMAE_CHANNEL(0x8900, 18), 248 DMAE_CHANNEL(0x8980, 19), 249 }; 250 251 static const struct sh_dmae_pdata dma_pdata = { 252 .slave = dma_slaves, 253 .slave_num = ARRAY_SIZE(dma_slaves), 254 .channel = dma_channels, 255 .channel_num = ARRAY_SIZE(dma_channels), 256 .ts_low_shift = TS_LOW_SHIFT, 257 .ts_low_mask = TS_LOW_BIT << TS_LOW_SHIFT, 258 .ts_high_shift = TS_HI_SHIFT, 259 .ts_high_mask = TS_HI_BIT << TS_HI_SHIFT, 260 .ts_shift = dma_ts_shift, 261 .ts_shift_num = ARRAY_SIZE(dma_ts_shift), 262 .dmaor_init = DMAOR_DME, 263 .chclr_present = 1, 264 .chclr_bitwise = 1, 265 }; 266 267 static struct resource dma_resources[] = { 268 DEFINE_RES_MEM(0xe6700020, 0x89e0), 269 DEFINE_RES_IRQ(gic_spi(220)), 270 { 271 /* IRQ for channels 0-19 */ 272 .start = gic_spi(200), 273 .end = gic_spi(219), 274 .flags = IORESOURCE_IRQ, 275 }, 276 }; 277 278 #define r8a73a4_register_dmac() \ 279 platform_device_register_resndata(NULL, "sh-dma-engine", 0, \ 280 dma_resources, ARRAY_SIZE(dma_resources), \ 281 &dma_pdata, sizeof(dma_pdata)) 282 283 void __init r8a73a4_add_standard_devices(void) 284 { 285 r8a73a4_add_dt_devices(); 286 r8a73a4_register_scif(0); 287 r8a73a4_register_scif(1); 288 r8a73a4_register_scif(2); 289 r8a73a4_register_scif(3); 290 r8a73a4_register_scif(4); 291 r8a73a4_register_scif(5); 292 r8a73a4_register_irqc(0); 293 r8a73a4_register_irqc(1); 294 r8a73a4_register_thermal(); 295 r8a73a4_register_dmac(); 296 } 297 298 void __init r8a73a4_init_early(void) 299 { 300 #ifndef CONFIG_ARM_ARCH_TIMER 301 shmobile_setup_delay(1500, 2, 4); /* Cortex-A15 @ 1500MHz */ 302 #endif 303 } 304 305 #ifdef CONFIG_USE_OF 306 307 static const char *r8a73a4_boards_compat_dt[] __initdata = { 308 "renesas,r8a73a4", 309 NULL, 310 }; 311 312 DT_MACHINE_START(R8A73A4_DT, "Generic R8A73A4 (Flattened Device Tree)") 313 .init_early = r8a73a4_init_early, 314 .dt_compat = r8a73a4_boards_compat_dt, 315 MACHINE_END 316 #endif /* CONFIG_USE_OF */ 317