1 /* 2 * Access various peripherals on a board using the JZ4780. 3 * 4 * Copyright (C) 2023 Paul Boddie <paul@boddie.org.uk> 5 * 6 * This program is free software; you can redistribute it and/or 7 * modify it under the terms of the GNU General Public License as 8 * published by the Free Software Foundation; either version 2 of 9 * the License, or (at your option) any later version. 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 Street, Fifth Floor, 19 * Boston, MA 02110-1301, USA 20 */ 21 22 /* NOTE: AIC support should be replaced. The CI20 should be able to send I2S 23 audio over HDMI or via its internal codec to the headphone socket. */ 24 25 #include <l4/devices/aic-x1600.h> 26 27 #include <l4/devices/cpm-jz4780.h> 28 #include <l4/devices/dma-jz4780.h> 29 #include <l4/devices/gpio-jz4780.h> 30 #include <l4/devices/i2c-jz4780.h> 31 32 /* GPIO-based SPI can use arbitrary pins, whereas on the CI20 only the secondary 33 header provides pins like GPC. */ 34 35 #include <l4/devices/spi-gpio.h> 36 #include <l4/devices/spi-hybrid.h> 37 #include <l4/devices/spi-jz4780.h> 38 #include "common.h" 39 40 41 42 /* AIC adapter functions. */ 43 44 void *aic_init(l4_addr_t aic_start, l4_addr_t start, l4_addr_t end, void *cpm) 45 { 46 return x1600_aic_init(aic_start, start, end, cpm); 47 } 48 49 void *aic_get_channel(void *aic, int num, void *channel) 50 { 51 return x1600_aic_get_channel(aic, num, channel); 52 } 53 54 unsigned int aic_transfer(void *channel, l4re_dma_space_dma_addr_t paddr, 55 uint32_t count, uint32_t sample_rate, 56 uint8_t sample_size) 57 { 58 return x1600_aic_transfer(channel, paddr, count, sample_rate, sample_size); 59 } 60 61 62 63 /* CPM adapter functions. */ 64 65 void *cpm_init(l4_addr_t cpm_base) 66 { 67 return jz4780_cpm_init(cpm_base); 68 } 69 70 const char *cpm_clock_type(void *cpm, enum Clock_identifiers clock) 71 { 72 return jz4780_cpm_clock_type(cpm, clock); 73 } 74 75 int cpm_have_clock(void *cpm, enum Clock_identifiers clock) 76 { 77 return jz4780_cpm_have_clock(cpm, clock); 78 } 79 80 void cpm_start_clock(void *cpm, enum Clock_identifiers clock) 81 { 82 jz4780_cpm_start_clock(cpm, clock); 83 } 84 85 void cpm_stop_clock(void *cpm, enum Clock_identifiers clock) 86 { 87 jz4780_cpm_stop_clock(cpm, clock); 88 } 89 90 int cpm_get_parameters(void *cpm, enum Clock_identifiers clock, 91 uint32_t parameters[]) 92 { 93 return jz4780_cpm_get_parameters(cpm, clock, parameters); 94 } 95 96 int cpm_set_parameters(void *cpm, enum Clock_identifiers clock, 97 int num_parameters, uint32_t parameters[]) 98 { 99 return jz4780_cpm_set_parameters(cpm, clock, num_parameters, parameters); 100 } 101 102 uint8_t cpm_get_source(void *cpm, enum Clock_identifiers clock) 103 { 104 return jz4780_cpm_get_source(cpm, clock); 105 } 106 107 void cpm_set_source(void *cpm, enum Clock_identifiers clock, uint8_t source) 108 { 109 jz4780_cpm_set_source(cpm, clock, source); 110 } 111 112 enum Clock_identifiers cpm_get_source_clock(void *cpm, enum Clock_identifiers clock) 113 { 114 return jz4780_cpm_get_source_clock(cpm, clock); 115 } 116 117 void cpm_set_source_clock(void *cpm, enum Clock_identifiers clock, enum Clock_identifiers source) 118 { 119 jz4780_cpm_set_source_clock(cpm, clock, source); 120 } 121 122 uint64_t cpm_get_source_frequency(void *cpm, enum Clock_identifiers clock) 123 { 124 return jz4780_cpm_get_source_frequency(cpm, clock); 125 } 126 127 uint64_t cpm_get_frequency(void *cpm, enum Clock_identifiers clock) 128 { 129 return jz4780_cpm_get_frequency(cpm, clock); 130 } 131 132 int cpm_set_frequency(void *cpm, enum Clock_identifiers clock, uint64_t frequency) 133 { 134 return jz4780_cpm_set_frequency(cpm, clock, frequency); 135 } 136 137 138 139 /* DMA adapter functions. */ 140 141 void *dma_init(l4_addr_t start, l4_addr_t end, void *cpm) 142 { 143 return jz4780_dma_init(start, end, cpm); 144 } 145 146 void dma_disable(void *dma_chip) 147 { 148 jz4780_dma_disable(dma_chip); 149 } 150 151 void dma_enable(void *dma_chip) 152 { 153 jz4780_dma_enable(dma_chip); 154 } 155 156 void *dma_get_channel(void *dma, uint8_t channel, l4_cap_idx_t irq) 157 { 158 return jz4780_dma_get_channel(dma, channel, irq); 159 } 160 161 unsigned int dma_transfer(void *dma_channel, 162 uint32_t source, uint32_t destination, 163 unsigned int count, 164 int source_increment, int destination_increment, 165 uint8_t source_width, uint8_t destination_width, 166 uint8_t transfer_unit_size, 167 int type) 168 { 169 return jz4780_dma_transfer(dma_channel, source, destination, count, 170 source_increment, destination_increment, 171 source_width, destination_width, 172 transfer_unit_size, type); 173 } 174 175 unsigned int dma_wait(void *dma_channel) 176 { 177 return jz4780_dma_wait(dma_channel); 178 } 179 180 181 182 /* GPIO adapter functions. */ 183 184 void *gpio_init(l4_addr_t start, l4_addr_t end, unsigned pins, 185 l4_uint32_t pull_ups, l4_uint32_t pull_downs) 186 { 187 return jz4780_gpio_init(start, end, pins, pull_ups, pull_downs); 188 } 189 190 void gpio_setup(void *gpio, unsigned pin, unsigned mode, int value) 191 { 192 jz4780_gpio_setup(gpio, pin, mode, value); 193 } 194 195 void gpio_config_pull(void *gpio, unsigned pin, unsigned mode) 196 { 197 jz4780_gpio_config_pull(gpio, pin, mode); 198 } 199 200 void gpio_config_pad(void *gpio, unsigned pin, unsigned func, unsigned value) 201 { 202 jz4780_gpio_config_pad(gpio, pin, func, value); 203 } 204 205 void gpio_config_get(void *gpio, unsigned pin, unsigned reg, unsigned *value) 206 { 207 jz4780_gpio_config_get(gpio, pin, reg, value); 208 } 209 210 void gpio_config_pad_get(void *gpio, unsigned pin, unsigned *func, unsigned *value) 211 { 212 jz4780_gpio_config_pad_get(gpio, pin, func, value); 213 } 214 215 void gpio_multi_setup(void *gpio, Pin_slice const *mask, unsigned mode, unsigned outvalues) 216 { 217 jz4780_gpio_multi_setup(gpio, mask, mode, outvalues); 218 } 219 220 void gpio_multi_config_pad(void *gpio, Pin_slice const *mask, unsigned func, unsigned value) 221 { 222 jz4780_gpio_multi_config_pad(gpio, mask, func, value); 223 } 224 225 void gpio_multi_set(void *gpio, Pin_slice const *mask, unsigned data) 226 { 227 jz4780_gpio_multi_set(gpio, mask, data); 228 } 229 230 unsigned gpio_multi_get(void *gpio, unsigned offset) 231 { 232 return jz4780_gpio_multi_get(gpio, offset); 233 } 234 235 int gpio_get(void *gpio, unsigned pin) 236 { 237 return jz4780_gpio_get(gpio, pin); 238 } 239 240 void gpio_set(void *gpio, unsigned pin, int value) 241 { 242 jz4780_gpio_set(gpio, pin, value); 243 } 244 245 void *gpio_get_irq(void *gpio, unsigned pin) 246 { 247 return jz4780_gpio_get_irq(gpio, pin); 248 } 249 250 bool gpio_irq_set_mode(void *gpio_irq, unsigned mode) 251 { 252 return jz4780_gpio_irq_set_mode(gpio_irq, mode); 253 } 254 255 256 257 /* I2C adapter functions. */ 258 259 void *i2c_init(l4_addr_t start, l4_addr_t end, void *cpm, 260 uint32_t frequency) 261 { 262 return jz4780_i2c_init(start, end, cpm, frequency); 263 } 264 265 void *i2c_get_channel(void *i2c, uint8_t channel) 266 { 267 return jz4780_i2c_get_channel(i2c, channel); 268 } 269 270 uint32_t i2c_get_frequency(void *i2c_channel) 271 { 272 return jz4780_i2c_get_frequency(i2c_channel); 273 } 274 275 void i2c_set_target(void *i2c_channel, uint8_t addr) 276 { 277 return jz4780_i2c_set_target(i2c_channel, addr); 278 } 279 280 void i2c_start_read(void *i2c_channel, uint8_t buf[], unsigned int total, 281 int stop) 282 { 283 jz4780_i2c_start_read(i2c_channel, buf, total, stop); 284 } 285 286 void i2c_read(void *i2c_channel) 287 { 288 jz4780_i2c_read(i2c_channel); 289 } 290 291 void i2c_start_write(void *i2c_channel, uint8_t buf[], unsigned int total, 292 int stop) 293 { 294 jz4780_i2c_start_write(i2c_channel, buf, total, stop); 295 } 296 297 void i2c_write(void *i2c_channel) 298 { 299 jz4780_i2c_write(i2c_channel); 300 } 301 302 int i2c_read_done(void *i2c_channel) 303 { 304 return jz4780_i2c_read_done(i2c_channel); 305 } 306 307 int i2c_write_done(void *i2c_channel) 308 { 309 return jz4780_i2c_write_done(i2c_channel); 310 } 311 312 unsigned int i2c_have_read(void *i2c_channel) 313 { 314 return jz4780_i2c_have_read(i2c_channel); 315 } 316 317 unsigned int i2c_have_written(void *i2c_channel) 318 { 319 return jz4780_i2c_have_written(i2c_channel); 320 } 321 322 int i2c_failed(void *i2c_channel) 323 { 324 return jz4780_i2c_failed(i2c_channel); 325 } 326 327 void i2c_stop(void *i2c_channel) 328 { 329 jz4780_i2c_stop(i2c_channel); 330 } 331 332 333 334 /* SPI adapter functions. */ 335 336 void *spi_init(l4_addr_t spi_start, l4_addr_t start, l4_addr_t end, void *cpm) 337 { 338 return jz4780_spi_init(spi_start, start, end, cpm); 339 } 340 341 void *spi_get_channel(void *spi, uint8_t num, void *channel, uint64_t frequency, 342 void *control_chip, int control_pin, int control_alt_func) 343 { 344 void *ch = jz4780_spi_get_channel(spi, num, channel, frequency); 345 346 return spi_hybrid_get_channel(ch, control_chip, control_pin, control_alt_func); 347 } 348 349 void *spi_get_channel_gpio(uint64_t frequency, 350 void *clock_chip, int clock_pin, 351 void *data_chip, int data_pin, 352 void *enable_chip, int enable_pin, 353 void *control_chip, int control_pin) 354 { 355 return spi_gpio_get_channel(frequency, clock_chip, clock_pin, data_chip, 356 data_pin, enable_chip, enable_pin, control_chip, 357 control_pin); 358 } 359 360 void spi_acquire_control(void *channel, int level) 361 { 362 spi_hybrid_acquire_control(channel, level); 363 } 364 365 void spi_release_control(void *channel) 366 { 367 spi_hybrid_release_control(channel); 368 } 369 370 void spi_send_gpio(void *channel, uint32_t bytes, const uint8_t data[]) 371 { 372 spi_gpio_send(channel, bytes, data); 373 } 374 375 void spi_send_units(void *channel, uint32_t bytes, const uint8_t data[], 376 uint8_t unit_size, uint8_t char_size) 377 { 378 jz4780_spi_send_units(channel, bytes, data, unit_size, char_size); 379 } 380 381 uint32_t spi_transfer(void *channel, l4re_dma_space_dma_addr_t paddr, 382 uint32_t count, uint8_t unit_size, uint8_t char_size, 383 l4_addr_t desc_vaddr, l4re_dma_space_dma_addr_t desc_paddr) 384 { 385 /* Transfer is not supported by the common interface. */ 386 387 void *ch = spi_hybrid_get_raw_channel(channel); 388 389 return jz4780_spi_transfer_descriptor(ch, paddr, count, unit_size, char_size, 390 desc_vaddr, desc_paddr); 391 } 392 393 394 395 /* Memory regions. */ 396 397 const char *memory_regions[] = { 398 [AIC] = "jz4780-aic", 399 [CPM] = "jz4780-cpm", 400 [DMA] = "jz4780-dma", 401 [GPIO] = "jz4780-gpio", 402 [I2C] = "jz4780-i2c", 403 [SSI] = "jz4780-ssi", 404 }; 405 406 407 408 /* AIC definitions. */ 409 410 void *aic_channels[] = {NULL, NULL}; 411 412 const unsigned int num_aic_channels = 2; 413 414 l4_cap_idx_t aic_irqs[] = {L4_INVALID_CAP}; 415 416 417 418 /* CPM definitions. */ 419 420 struct clock_info clocks[] = { 421 {"ext", Clock_external, "External"}, 422 {"plla", Clock_pll_A, "PLL A"}, 423 {"plle", Clock_pll_E, "PLL E"}, 424 {"pllm", Clock_pll_M, "PLL M"}, 425 {"pllv", Clock_pll_V, "PLL V"}, 426 {"main", Clock_main, "Main"}, 427 {"cpu", Clock_cpu, "CPU"}, 428 {"h2p", Clock_hclock2_pclock, "AHB2/APB"}, 429 {"ahb0", Clock_hclock0, "AHB0"}, 430 {"ahb2", Clock_hclock2, "AHB2"}, 431 {"apb", Clock_pclock, "APB"}, 432 {"dma", Clock_dma, "DMA"}, 433 {"hdmi", Clock_lcd, "HDMI"}, 434 {"lcd", Clock_lcd, "LCD"}, 435 {"lcd0", Clock_lcd_pixel0, "LCD0 pixel"}, 436 {"lcd1", Clock_lcd_pixel1, "LCD1 pixel"}, 437 {"msc", Clock_msc, "MSC"}, 438 {"msc0", Clock_msc0, "MSC0"}, 439 {"msc1", Clock_msc1, "MSC1"}, 440 {"msc2", Clock_msc1, "MSC2"}, 441 {"otg0", Clock_otg0, "USB OTG0"}, 442 {"otg1", Clock_otg1, "USB OTG1"}, 443 {"i2c0", Clock_i2c0, "I2C0"}, 444 {"i2c1", Clock_i2c1, "I2C1"}, 445 {"i2c2", Clock_i2c2, "I2C2"}, 446 {"i2c3", Clock_i2c3, "I2C3"}, 447 {"i2c4", Clock_i2c4, "I2C4"}, 448 {"i2s0", Clock_i2s0, "I2S0"}, 449 {"i2s1", Clock_i2s1, "I2S1"}, 450 {"pcm", Clock_pcm, "PCM"}, 451 {"ssi", Clock_ssi, "SSI"}, 452 {"ssi0", Clock_ssi0, "SSI0"}, 453 {"ssi1", Clock_ssi1, "SSI1"}, 454 {"uart0", Clock_uart0, "UART0"}, 455 {"uart1", Clock_uart1, "UART1"}, 456 {"uart2", Clock_uart2, "UART2"}, 457 {"uart3", Clock_uart3, "UART3"}, 458 {"uart4", Clock_uart4, "UART4"}, 459 {NULL, Clock_undefined, NULL}, 460 }; 461 462 463 464 /* DMA definitions. */ 465 466 void *dma_channels[32] = {NULL}; 467 468 const unsigned int num_dma_channels = 32; 469 470 struct dma_region dma_regions[8]; 471 472 const unsigned int num_dma_regions = 8; 473 474 l4_cap_idx_t dma_irq = L4_INVALID_CAP; 475 476 477 478 /* GPIO definitions. */ 479 480 struct gpio_port gpio_ports[] = { 481 {0x3fff00ff, 0x00000000}, 482 {0xfff0f3fc, 0x000f0c03}, 483 {0x0fffffff, 0x00000000}, 484 {0xffff4fff, 0x0000b000}, 485 {0xf0fff37c, 0x00000483}, 486 {0x7fa7f00f, 0x00580ff0}, 487 }; 488 489 const unsigned int num_gpio_ports = 6; 490 491 const char gpio_port_labels[] = "ABCDEF"; 492 493 494 495 /* I2C definitions. */ 496 497 void *i2c_channels[] = {NULL, NULL, NULL, NULL, NULL}; 498 499 const unsigned int num_i2c_channels = 5; 500 501 l4_cap_idx_t i2c_irqs[] = {L4_INVALID_CAP, L4_INVALID_CAP}; 502 503 504 505 /* SPI definitions. */ 506 507 void *spi_channels[] = {NULL, NULL}; 508 509 const unsigned int num_spi_channels = 2;