Lines Matching +full:op +full:- +full:mode
1 // SPDX-License-Identifier: GPL-2.0-only
16 #include <linux/spi/spi-mem.h>
117 static u32 f_ospi_get_dummy_cycle(const struct spi_mem_op *op) in f_ospi_get_dummy_cycle() argument
119 if (!op->dummy.nbytes) in f_ospi_get_dummy_cycle()
122 return (op->dummy.nbytes * 8) / op->dummy.buswidth; in f_ospi_get_dummy_cycle()
128 ospi->base + OSPI_IRQ); in f_ospi_clear_irq()
135 val = readl(ospi->base + OSPI_IRQ_STAT_EN); in f_ospi_enable_irq_status()
137 writel(val, ospi->base + OSPI_IRQ_STAT_EN); in f_ospi_enable_irq_status()
144 val = readl(ospi->base + OSPI_IRQ_STAT_EN); in f_ospi_disable_irq_status()
146 writel(val, ospi->base + OSPI_IRQ_STAT_EN); in f_ospi_disable_irq_status()
153 val = readl(ospi->base + OSPI_IRQ_SIG_EN); in f_ospi_disable_irq_output()
155 writel(val, ospi->base + OSPI_IRQ_SIG_EN); in f_ospi_disable_irq_output()
163 val = readl(ospi->base + OSPI_CLK_CTL); in f_ospi_prepare_config()
165 writel(val, ospi->base + OSPI_CLK_CTL); in f_ospi_prepare_config()
171 return readl_poll_timeout(ospi->base + OSPI_STAT, in f_ospi_prepare_config()
181 val = readl(ospi->base + OSPI_CLK_CTL); in f_ospi_unprepare_config()
183 writel(val, ospi->base + OSPI_CLK_CTL); in f_ospi_unprepare_config()
186 return readl_poll_timeout(ospi->base + OSPI_STAT, in f_ospi_unprepare_config()
193 long rate_hz = clk_get_rate(ospi->clk); in f_ospi_config_clk()
199 dev_warn(ospi->dev, "Device frequency too large: %d\n", in f_ospi_config_clk()
212 dev_warn(ospi->dev, "Device frequency too small: %d\n", in f_ospi_config_clk()
219 * G7: Set clock mode in f_ospi_config_clk()
223 val = readl(ospi->base + OSPI_CLK_CTL); in f_ospi_config_clk()
229 writel(val, ospi->base + OSPI_CLK_CTL); in f_ospi_config_clk()
239 u8 mode = OSPI_PROT_MODE_SINGLE; in f_ospi_get_mode() local
243 mode = OSPI_PROT_MODE_SINGLE; in f_ospi_get_mode()
246 mode = OSPI_PROT_MODE_DUAL; in f_ospi_get_mode()
249 mode = OSPI_PROT_MODE_QUAD; in f_ospi_get_mode()
252 mode = OSPI_PROT_MODE_OCTAL; in f_ospi_get_mode()
256 dev_err(ospi->dev, "Invalid buswidth: %d\n", width); in f_ospi_get_mode()
260 return mode; in f_ospi_get_mode()
265 const struct spi_mem_op *op) in f_ospi_config_indir_protocol() argument
267 struct spi_device *spi = mem->spi; in f_ospi_config_indir_protocol()
268 u8 mode; in f_ospi_config_indir_protocol() local
273 writel(BIT(spi_get_chipselect(spi, 0)), ospi->base + OSPI_SSEL); in f_ospi_config_indir_protocol()
275 mode = f_ospi_get_mode(ospi, op->cmd.buswidth, 1); in f_ospi_config_indir_protocol()
276 prot |= FIELD_PREP(OSPI_PROT_MODE_CODE_MASK, mode); in f_ospi_config_indir_protocol()
278 mode = f_ospi_get_mode(ospi, op->addr.buswidth, op->addr.nbytes); in f_ospi_config_indir_protocol()
279 prot |= FIELD_PREP(OSPI_PROT_MODE_ADDR_MASK, mode); in f_ospi_config_indir_protocol()
281 mode = f_ospi_get_mode(ospi, op->data.buswidth, op->data.nbytes); in f_ospi_config_indir_protocol()
282 prot |= FIELD_PREP(OSPI_PROT_MODE_DATA_MASK, mode); in f_ospi_config_indir_protocol()
289 if (spi->mode & SPI_LSB_FIRST) in f_ospi_config_indir_protocol()
293 if (spi->mode & SPI_CPHA) in f_ospi_config_indir_protocol()
297 switch (op->data.nbytes & 0x3) { in f_ospi_config_indir_protocol()
304 val = OSPI_DAT_SIZE_EN | (op->data.nbytes - 1); in f_ospi_config_indir_protocol()
308 val = OSPI_DAT_SIZE_EN | (op->data.nbytes - 1); in f_ospi_config_indir_protocol()
313 switch (op->data.dir) { in f_ospi_config_indir_protocol()
327 dev_warn(ospi->dev, "Unsupported direction"); in f_ospi_config_indir_protocol()
331 prot |= FIELD_PREP(OSPI_PROT_ADDR_SIZE_MASK, op->addr.nbytes); in f_ospi_config_indir_protocol()
334 writel(prot, ospi->base + OSPI_PROT_CTL_INDIR); in f_ospi_config_indir_protocol()
335 writel(val, ospi->base + OSPI_DAT_SIZE_INDIR); in f_ospi_config_indir_protocol()
339 const struct spi_mem_op *op) in f_ospi_indir_prepare_op() argument
348 f_ospi_config_clk(ospi, op->max_freq); in f_ospi_indir_prepare_op()
350 f_ospi_config_indir_protocol(ospi, mem, op); in f_ospi_indir_prepare_op()
352 writel(f_ospi_get_dummy_cycle(op), ospi->base + OSPI_DMY_INDIR); in f_ospi_indir_prepare_op()
353 writel(op->addr.val, ospi->base + OSPI_ADDR); in f_ospi_indir_prepare_op()
354 writel(op->cmd.opcode, ospi->base + OSPI_CMD_IDX_INDIR); in f_ospi_indir_prepare_op()
358 switch (op->data.dir) { in f_ospi_indir_prepare_op()
372 dev_warn(ospi->dev, "Unsupported direction"); in f_ospi_indir_prepare_op()
385 writel(OSPI_TRANS_CTL_START_REQ, ospi->base + OSPI_TRANS_CTL); in f_ospi_indir_start_xfer()
391 writel(OSPI_TRANS_CTL_STOP_REQ, ospi->base + OSPI_TRANS_CTL); in f_ospi_indir_stop_xfer()
398 return readl_poll_timeout(ospi->base + OSPI_IRQ, val, in f_ospi_indir_wait_xfer_complete()
404 const struct spi_mem_op *op) in f_ospi_indir_read() argument
406 u8 *buf = op->data.buf.in; in f_ospi_indir_read()
410 mutex_lock(&ospi->mlock); in f_ospi_indir_read()
412 /* E1-2: Prepare transfer operation */ in f_ospi_indir_read()
413 ret = f_ospi_indir_prepare_op(ospi, mem, op); in f_ospi_indir_read()
419 /* E3-4: Wait for ready and read data */ in f_ospi_indir_read()
420 for (i = 0; i < op->data.nbytes; i++) { in f_ospi_indir_read()
421 ret = readl_poll_timeout(ospi->base + OSPI_IRQ, val, in f_ospi_indir_read()
427 buf[i] = readl(ospi->base + OSPI_DAT) & 0xFF; in f_ospi_indir_read()
430 /* E5-6: Stop transfer if data size is nothing */ in f_ospi_indir_read()
431 if (!(readl(ospi->base + OSPI_DAT_SIZE_INDIR) & OSPI_DAT_SIZE_EN)) in f_ospi_indir_read()
434 /* E7-8: Wait for completion and clear */ in f_ospi_indir_read()
439 writel(OSPI_IRQ_CS_TRANS_COMP, ospi->base + OSPI_IRQ); in f_ospi_indir_read()
442 if (readl(ospi->base + OSPI_DAT_SIZE_INDIR) & OSPI_DAT_SIZE_EN) in f_ospi_indir_read()
445 /* E10-11: Reset and check read fifo */ in f_ospi_indir_read()
446 writel(OSPI_SWRST_INDIR_READ_FIFO, ospi->base + OSPI_SWRST); in f_ospi_indir_read()
448 ret = readl_poll_timeout(ospi->base + OSPI_SWRST, val, in f_ospi_indir_read()
452 mutex_unlock(&ospi->mlock); in f_ospi_indir_read()
458 const struct spi_mem_op *op) in f_ospi_indir_write() argument
460 u8 *buf = (u8 *)op->data.buf.out; in f_ospi_indir_write()
464 mutex_lock(&ospi->mlock); in f_ospi_indir_write()
466 /* F1-3: Prepare transfer operation */ in f_ospi_indir_write()
467 ret = f_ospi_indir_prepare_op(ospi, mem, op); in f_ospi_indir_write()
473 if (!(readl(ospi->base + OSPI_PROT_CTL_INDIR) & OSPI_PROT_DATA_EN)) in f_ospi_indir_write()
476 /* F4-5: Wait for buffer ready and write data */ in f_ospi_indir_write()
477 for (i = 0; i < op->data.nbytes; i++) { in f_ospi_indir_write()
478 ret = readl_poll_timeout(ospi->base + OSPI_IRQ, val, in f_ospi_indir_write()
484 writel(buf[i], ospi->base + OSPI_DAT); in f_ospi_indir_write()
487 /* F6-7: Stop transfer if data size is nothing */ in f_ospi_indir_write()
488 if (!(readl(ospi->base + OSPI_DAT_SIZE_INDIR) & OSPI_DAT_SIZE_EN)) in f_ospi_indir_write()
492 /* F8-9: Wait for completion and clear */ in f_ospi_indir_write()
497 writel(OSPI_IRQ_CS_TRANS_COMP, ospi->base + OSPI_IRQ); in f_ospi_indir_write()
499 mutex_unlock(&ospi->mlock); in f_ospi_indir_write()
504 static int f_ospi_exec_op(struct spi_mem *mem, const struct spi_mem_op *op) in f_ospi_exec_op() argument
506 struct f_ospi *ospi = spi_controller_get_devdata(mem->spi->controller); in f_ospi_exec_op()
509 switch (op->data.dir) { in f_ospi_exec_op()
511 err = f_ospi_indir_read(ospi, mem, op); in f_ospi_exec_op()
517 err = f_ospi_indir_write(ospi, mem, op); in f_ospi_exec_op()
521 dev_warn(ospi->dev, "Unsupported direction"); in f_ospi_exec_op()
522 err = -EOPNOTSUPP; in f_ospi_exec_op()
529 const struct spi_mem_op *op) in f_ospi_supports_op_width() argument
532 u8 width_op[] = { op->cmd.buswidth, op->addr.buswidth, in f_ospi_supports_op_width()
533 op->dummy.buswidth, op->data.buswidth }; in f_ospi_supports_op_width()
555 const struct spi_mem_op *op) in f_ospi_supports_op() argument
557 if (f_ospi_get_dummy_cycle(op) > OSPI_DUMMY_CYCLE_MAX) in f_ospi_supports_op()
560 if (op->addr.nbytes > 4) in f_ospi_supports_op()
563 if (!f_ospi_supports_op_width(mem, op)) in f_ospi_supports_op()
566 return spi_mem_default_supports_op(mem, op); in f_ospi_supports_op()
569 static int f_ospi_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op) in f_ospi_adjust_op_size() argument
571 op->data.nbytes = min_t(int, op->data.nbytes, OSPI_DAT_SIZE_MAX); in f_ospi_adjust_op_size()
595 writel(OSPI_ACC_MODE_BOOT_DISABLE, ospi->base + OSPI_ACC_MODE); in f_ospi_init()
610 struct device *dev = &pdev->dev; in f_ospi_probe()
617 return -ENOMEM; in f_ospi_probe()
619 ctlr->mode_bits = SPI_TX_DUAL | SPI_TX_QUAD | SPI_TX_OCTAL in f_ospi_probe()
622 ctlr->mem_ops = &f_ospi_mem_ops; in f_ospi_probe()
623 ctlr->mem_caps = &f_ospi_mem_caps; in f_ospi_probe()
624 ctlr->bus_num = -1; in f_ospi_probe()
625 of_property_read_u32(dev->of_node, "num-cs", &num_cs); in f_ospi_probe()
627 dev_err(dev, "num-cs too large: %d\n", num_cs); in f_ospi_probe()
628 return -ENOMEM; in f_ospi_probe()
630 ctlr->num_chipselect = num_cs; in f_ospi_probe()
631 ctlr->dev.of_node = dev->of_node; in f_ospi_probe()
634 ospi->dev = dev; in f_ospi_probe()
638 ospi->base = devm_platform_ioremap_resource(pdev, 0); in f_ospi_probe()
639 if (IS_ERR(ospi->base)) { in f_ospi_probe()
640 ret = PTR_ERR(ospi->base); in f_ospi_probe()
644 ospi->clk = devm_clk_get_enabled(dev, NULL); in f_ospi_probe()
645 if (IS_ERR(ospi->clk)) { in f_ospi_probe()
646 ret = PTR_ERR(ospi->clk); in f_ospi_probe()
650 mutex_init(&ospi->mlock); in f_ospi_probe()
663 mutex_destroy(&ospi->mlock); in f_ospi_probe()
675 mutex_destroy(&ospi->mlock); in f_ospi_remove()
679 { .compatible = "socionext,f-ospi" },
686 .name = "socionext,f-ospi",