Lines Matching refs:cqspi
45 struct cqspi_st *cqspi; member
246 static bool cqspi_is_idle(struct cqspi_st *cqspi) in cqspi_is_idle() argument
248 u32 reg = readl(cqspi->iobase + CQSPI_REG_CONFIG); in cqspi_is_idle()
253 static u32 cqspi_get_rd_sram_level(struct cqspi_st *cqspi) in cqspi_get_rd_sram_level() argument
255 u32 reg = readl(cqspi->iobase + CQSPI_REG_SDRAMLEVEL); in cqspi_get_rd_sram_level()
263 struct cqspi_st *cqspi = dev; in cqspi_irq_handler() local
267 irq_status = readl(cqspi->iobase + CQSPI_REG_IRQSTATUS); in cqspi_irq_handler()
270 writel(irq_status, cqspi->iobase + CQSPI_REG_IRQSTATUS); in cqspi_irq_handler()
275 complete(&cqspi->transfer_complete); in cqspi_irq_handler()
291 static int cqspi_wait_idle(struct cqspi_st *cqspi) in cqspi_wait_idle() argument
304 if (cqspi_is_idle(cqspi)) in cqspi_wait_idle()
314 dev_err(&cqspi->pdev->dev, in cqspi_wait_idle()
324 static int cqspi_exec_flash_cmd(struct cqspi_st *cqspi, unsigned int reg) in cqspi_exec_flash_cmd() argument
326 void __iomem *reg_base = cqspi->iobase; in cqspi_exec_flash_cmd()
339 dev_err(&cqspi->pdev->dev, in cqspi_exec_flash_cmd()
345 return cqspi_wait_idle(cqspi); in cqspi_exec_flash_cmd()
351 struct cqspi_st *cqspi = f_pdata->cqspi; in cqspi_command_read() local
352 void __iomem *reg_base = cqspi->iobase; in cqspi_command_read()
362 dev_err(&cqspi->pdev->dev, in cqspi_command_read()
378 status = cqspi_exec_flash_cmd(cqspi, reg); in cqspi_command_read()
402 struct cqspi_st *cqspi = f_pdata->cqspi; in cqspi_command_write() local
403 void __iomem *reg_base = cqspi->iobase; in cqspi_command_write()
412 dev_err(&cqspi->pdev->dev, in cqspi_command_write()
447 return cqspi_exec_flash_cmd(cqspi, reg); in cqspi_command_write()
453 struct cqspi_st *cqspi = f_pdata->cqspi; in cqspi_read_setup() local
454 void __iomem *reg_base = cqspi->iobase; in cqspi_read_setup()
484 struct cqspi_st *cqspi = f_pdata->cqspi; in cqspi_indirect_read_execute() local
485 struct device *dev = &cqspi->pdev->dev; in cqspi_indirect_read_execute()
486 void __iomem *reg_base = cqspi->iobase; in cqspi_indirect_read_execute()
487 void __iomem *ahb_base = cqspi->ahb_base; in cqspi_indirect_read_execute()
502 reinit_completion(&cqspi->transfer_complete); in cqspi_indirect_read_execute()
507 if (!wait_for_completion_timeout(&cqspi->transfer_complete, in cqspi_indirect_read_execute()
511 bytes_to_read = cqspi_get_rd_sram_level(cqspi); in cqspi_indirect_read_execute()
521 bytes_to_read *= cqspi->fifo_width; in cqspi_indirect_read_execute()
539 bytes_to_read = cqspi_get_rd_sram_level(cqspi); in cqspi_indirect_read_execute()
543 reinit_completion(&cqspi->transfer_complete); in cqspi_indirect_read_execute()
576 struct cqspi_st *cqspi = f_pdata->cqspi; in cqspi_write_setup() local
577 void __iomem *reg_base = cqspi->iobase; in cqspi_write_setup()
596 struct cqspi_st *cqspi = f_pdata->cqspi; in cqspi_indirect_write_execute() local
597 struct device *dev = &cqspi->pdev->dev; in cqspi_indirect_write_execute()
598 void __iomem *reg_base = cqspi->iobase; in cqspi_indirect_write_execute()
611 reinit_completion(&cqspi->transfer_complete); in cqspi_indirect_write_execute()
621 if (cqspi->wr_delay) in cqspi_indirect_write_execute()
622 ndelay(cqspi->wr_delay); in cqspi_indirect_write_execute()
632 iowrite32_rep(cqspi->ahb_base, txbuf, write_words); in cqspi_indirect_write_execute()
639 iowrite32(temp, cqspi->ahb_base); in cqspi_indirect_write_execute()
643 if (!wait_for_completion_timeout(&cqspi->transfer_complete, in cqspi_indirect_write_execute()
653 reinit_completion(&cqspi->transfer_complete); in cqspi_indirect_write_execute()
670 cqspi_wait_idle(cqspi); in cqspi_indirect_write_execute()
686 struct cqspi_st *cqspi = f_pdata->cqspi; in cqspi_chipselect() local
687 void __iomem *reg_base = cqspi->iobase; in cqspi_chipselect()
692 if (cqspi->is_decoded_cs) { in cqspi_chipselect()
726 struct cqspi_st *cqspi = f_pdata->cqspi; in cqspi_delay() local
727 void __iomem *iobase = cqspi->iobase; in cqspi_delay()
728 const unsigned int ref_clk_hz = cqspi->master_ref_clk_hz; in cqspi_delay()
734 tsclk = DIV_ROUND_UP(ref_clk_hz, cqspi->sclk); in cqspi_delay()
756 static void cqspi_config_baudrate_div(struct cqspi_st *cqspi) in cqspi_config_baudrate_div() argument
758 const unsigned int ref_clk_hz = cqspi->master_ref_clk_hz; in cqspi_config_baudrate_div()
759 void __iomem *reg_base = cqspi->iobase; in cqspi_config_baudrate_div()
763 div = DIV_ROUND_UP(ref_clk_hz, 2 * cqspi->sclk) - 1; in cqspi_config_baudrate_div()
771 static void cqspi_readdata_capture(struct cqspi_st *cqspi, in cqspi_readdata_capture() argument
775 void __iomem *reg_base = cqspi->iobase; in cqspi_readdata_capture()
794 static void cqspi_controller_enable(struct cqspi_st *cqspi, bool enable) in cqspi_controller_enable() argument
796 void __iomem *reg_base = cqspi->iobase; in cqspi_controller_enable()
812 struct cqspi_st *cqspi = f_pdata->cqspi; in cqspi_configure() local
813 int switch_cs = (cqspi->current_cs != f_pdata->cs); in cqspi_configure()
814 int switch_ck = (cqspi->sclk != sclk); in cqspi_configure()
817 cqspi_controller_enable(cqspi, 0); in cqspi_configure()
821 cqspi->current_cs = f_pdata->cs; in cqspi_configure()
827 cqspi->sclk = sclk; in cqspi_configure()
828 cqspi_config_baudrate_div(cqspi); in cqspi_configure()
830 cqspi_readdata_capture(cqspi, !cqspi->rclk_en, in cqspi_configure()
835 cqspi_controller_enable(cqspi, 1); in cqspi_configure()
870 struct cqspi_st *cqspi = f_pdata->cqspi; in cqspi_write() local
884 if (cqspi->use_direct_mode && ((to + len) <= cqspi->ahb_size)) { in cqspi_write()
885 memcpy_toio(cqspi->ahb_base + to, buf, len); in cqspi_write()
886 return cqspi_wait_idle(cqspi); in cqspi_write()
894 struct cqspi_st *cqspi = param; in cqspi_rx_dma_callback() local
896 complete(&cqspi->rx_dma_complete); in cqspi_rx_dma_callback()
902 struct cqspi_st *cqspi = f_pdata->cqspi; in cqspi_direct_read_execute() local
903 struct device *dev = &cqspi->pdev->dev; in cqspi_direct_read_execute()
905 dma_addr_t dma_src = (dma_addr_t)cqspi->mmap_phys_base + from; in cqspi_direct_read_execute()
912 if (!cqspi->rx_chan || !virt_addr_valid(buf)) { in cqspi_direct_read_execute()
913 memcpy_fromio(buf, cqspi->ahb_base + from, len); in cqspi_direct_read_execute()
917 ddev = cqspi->rx_chan->device->dev; in cqspi_direct_read_execute()
923 tx = dmaengine_prep_dma_memcpy(cqspi->rx_chan, dma_dst, dma_src, in cqspi_direct_read_execute()
932 tx->callback_param = cqspi; in cqspi_direct_read_execute()
934 reinit_completion(&cqspi->rx_dma_complete); in cqspi_direct_read_execute()
943 dma_async_issue_pending(cqspi->rx_chan); in cqspi_direct_read_execute()
944 if (!wait_for_completion_timeout(&cqspi->rx_dma_complete, in cqspi_direct_read_execute()
946 dmaengine_terminate_sync(cqspi->rx_chan); in cqspi_direct_read_execute()
961 struct cqspi_st *cqspi = f_pdata->cqspi; in cqspi_read() local
975 if (cqspi->use_direct_mode && ((from + len) <= cqspi->ahb_size)) in cqspi_read()
983 struct cqspi_st *cqspi = spi_master_get_devdata(mem->spi->master); in cqspi_mem_process() local
986 f_pdata = &cqspi->f_pdata[mem->spi->chip_select]; in cqspi_mem_process()
1050 static int cqspi_of_get_pdata(struct cqspi_st *cqspi) in cqspi_of_get_pdata() argument
1052 struct device *dev = &cqspi->pdev->dev; in cqspi_of_get_pdata()
1055 cqspi->is_decoded_cs = of_property_read_bool(np, "cdns,is-decoded-cs"); in cqspi_of_get_pdata()
1057 if (of_property_read_u32(np, "cdns,fifo-depth", &cqspi->fifo_depth)) { in cqspi_of_get_pdata()
1062 if (of_property_read_u32(np, "cdns,fifo-width", &cqspi->fifo_width)) { in cqspi_of_get_pdata()
1068 &cqspi->trigger_address)) { in cqspi_of_get_pdata()
1073 cqspi->rclk_en = of_property_read_bool(np, "cdns,rclk-en"); in cqspi_of_get_pdata()
1078 static void cqspi_controller_init(struct cqspi_st *cqspi) in cqspi_controller_init() argument
1082 cqspi_controller_enable(cqspi, 0); in cqspi_controller_init()
1085 writel(0, cqspi->iobase + CQSPI_REG_REMAP); in cqspi_controller_init()
1088 writel(0, cqspi->iobase + CQSPI_REG_IRQMASK); in cqspi_controller_init()
1091 writel(cqspi->fifo_depth / 2, cqspi->iobase + CQSPI_REG_SRAMPARTITION); in cqspi_controller_init()
1094 writel(cqspi->trigger_address, in cqspi_controller_init()
1095 cqspi->iobase + CQSPI_REG_INDIRECTTRIGGER); in cqspi_controller_init()
1098 writel(cqspi->fifo_depth * cqspi->fifo_width / 2, in cqspi_controller_init()
1099 cqspi->iobase + CQSPI_REG_INDIRECTRDWATERMARK); in cqspi_controller_init()
1101 writel(cqspi->fifo_depth * cqspi->fifo_width / 8, in cqspi_controller_init()
1102 cqspi->iobase + CQSPI_REG_INDIRECTWRWATERMARK); in cqspi_controller_init()
1105 reg = readl(cqspi->iobase + CQSPI_REG_CONFIG); in cqspi_controller_init()
1107 writel(reg, cqspi->iobase + CQSPI_REG_CONFIG); in cqspi_controller_init()
1109 cqspi_controller_enable(cqspi, 1); in cqspi_controller_init()
1112 static int cqspi_request_mmap_dma(struct cqspi_st *cqspi) in cqspi_request_mmap_dma() argument
1119 cqspi->rx_chan = dma_request_chan_by_mask(&mask); in cqspi_request_mmap_dma()
1120 if (IS_ERR(cqspi->rx_chan)) { in cqspi_request_mmap_dma()
1121 int ret = PTR_ERR(cqspi->rx_chan); in cqspi_request_mmap_dma()
1122 cqspi->rx_chan = NULL; in cqspi_request_mmap_dma()
1123 return dev_err_probe(&cqspi->pdev->dev, ret, "No Rx DMA available\n"); in cqspi_request_mmap_dma()
1125 init_completion(&cqspi->rx_dma_complete); in cqspi_request_mmap_dma()
1132 struct cqspi_st *cqspi = spi_master_get_devdata(mem->spi->master); in cqspi_get_name() local
1133 struct device *dev = &cqspi->pdev->dev; in cqspi_get_name()
1143 static int cqspi_setup_flash(struct cqspi_st *cqspi) in cqspi_setup_flash() argument
1145 struct platform_device *pdev = cqspi->pdev; in cqspi_setup_flash()
1165 f_pdata = &cqspi->f_pdata[cs]; in cqspi_setup_flash()
1166 f_pdata->cqspi = cqspi; in cqspi_setup_flash()
1184 struct cqspi_st *cqspi; in cqspi_probe() local
1189 master = spi_alloc_master(&pdev->dev, sizeof(*cqspi)); in cqspi_probe()
1198 cqspi = spi_master_get_devdata(master); in cqspi_probe()
1200 cqspi->pdev = pdev; in cqspi_probe()
1201 platform_set_drvdata(pdev, cqspi); in cqspi_probe()
1204 ret = cqspi_of_get_pdata(cqspi); in cqspi_probe()
1212 cqspi->clk = devm_clk_get(dev, NULL); in cqspi_probe()
1213 if (IS_ERR(cqspi->clk)) { in cqspi_probe()
1215 ret = PTR_ERR(cqspi->clk); in cqspi_probe()
1221 cqspi->iobase = devm_ioremap_resource(dev, res); in cqspi_probe()
1222 if (IS_ERR(cqspi->iobase)) { in cqspi_probe()
1224 ret = PTR_ERR(cqspi->iobase); in cqspi_probe()
1230 cqspi->ahb_base = devm_ioremap_resource(dev, res_ahb); in cqspi_probe()
1231 if (IS_ERR(cqspi->ahb_base)) { in cqspi_probe()
1233 ret = PTR_ERR(cqspi->ahb_base); in cqspi_probe()
1236 cqspi->mmap_phys_base = (dma_addr_t)res_ahb->start; in cqspi_probe()
1237 cqspi->ahb_size = resource_size(res_ahb); in cqspi_probe()
1239 init_completion(&cqspi->transfer_complete); in cqspi_probe()
1255 ret = clk_prepare_enable(cqspi->clk); in cqspi_probe()
1282 cqspi->master_ref_clk_hz = clk_get_rate(cqspi->clk); in cqspi_probe()
1286 cqspi->wr_delay = 5 * DIV_ROUND_UP(NSEC_PER_SEC, in cqspi_probe()
1287 cqspi->master_ref_clk_hz); in cqspi_probe()
1291 cqspi->use_direct_mode = true; in cqspi_probe()
1295 pdev->name, cqspi); in cqspi_probe()
1301 cqspi_wait_idle(cqspi); in cqspi_probe()
1302 cqspi_controller_init(cqspi); in cqspi_probe()
1303 cqspi->current_cs = -1; in cqspi_probe()
1304 cqspi->sclk = 0; in cqspi_probe()
1306 ret = cqspi_setup_flash(cqspi); in cqspi_probe()
1312 if (cqspi->use_direct_mode) { in cqspi_probe()
1313 ret = cqspi_request_mmap_dma(cqspi); in cqspi_probe()
1326 cqspi_controller_enable(cqspi, 0); in cqspi_probe()
1328 clk_disable_unprepare(cqspi->clk); in cqspi_probe()
1339 struct cqspi_st *cqspi = platform_get_drvdata(pdev); in cqspi_remove() local
1341 cqspi_controller_enable(cqspi, 0); in cqspi_remove()
1343 if (cqspi->rx_chan) in cqspi_remove()
1344 dma_release_channel(cqspi->rx_chan); in cqspi_remove()
1346 clk_disable_unprepare(cqspi->clk); in cqspi_remove()
1357 struct cqspi_st *cqspi = dev_get_drvdata(dev); in cqspi_suspend() local
1359 cqspi_controller_enable(cqspi, 0); in cqspi_suspend()
1365 struct cqspi_st *cqspi = dev_get_drvdata(dev); in cqspi_resume() local
1367 cqspi_controller_enable(cqspi, 1); in cqspi_resume()