63 	struct aspeed_spi	*aspi;  member
82 	u32 (*segment_start)(struct aspeed_spi *aspi, u32 reg);
83 	u32 (*segment_end)(struct aspeed_spi *aspi, u32 reg);
84 	u32 (*segment_reg)(struct aspeed_spi *aspi, u32 start, u32 end);
298 	struct aspeed_spi *aspi = spi_controller_get_devdata(mem->spi->master);  in do_aspeed_spi_exec_op()  local
299 	struct aspeed_spi_chip *chip = &aspi->chips[mem->spi->chip_select];  in do_aspeed_spi_exec_op()
304 	dev_dbg(aspi->dev,  in do_aspeed_spi_exec_op()
311 	addr_mode = readl(aspi->regs + CE_CTRL_REG);  in do_aspeed_spi_exec_op()
326 		if (op->addr.nbytes == 4 && chip->aspi->data == &ast2400_spi_data)  in do_aspeed_spi_exec_op()
342 		writel(addr_mode, aspi->regs + CE_CTRL_REG);  in do_aspeed_spi_exec_op()
360 		writel(addr_mode_backup, aspi->regs + CE_CTRL_REG);  in do_aspeed_spi_exec_op()
377 	struct aspeed_spi *aspi = spi_controller_get_devdata(mem->spi->master);  in aspeed_spi_get_name()  local
378 	struct device *dev = aspi->dev;  in aspeed_spi_get_name()
389 static void aspeed_spi_get_windows(struct aspeed_spi *aspi,  in aspeed_spi_get_windows()  argument
392 	const struct aspeed_spi_data *data = aspi->data;  in aspeed_spi_get_windows()
396 	for (cs = 0; cs < aspi->data->max_cs; cs++) {  in aspeed_spi_get_windows()
397 		reg_val = readl(aspi->regs + CE0_SEGMENT_ADDR_REG + cs * 4);  in aspeed_spi_get_windows()
399 		windows[cs].size = data->segment_end(aspi, reg_val) -  in aspeed_spi_get_windows()
400 			data->segment_start(aspi, reg_val);  in aspeed_spi_get_windows()
401 		windows[cs].offset = data->segment_start(aspi, reg_val) - aspi->ahb_base_phy;  in aspeed_spi_get_windows()
402 		dev_vdbg(aspi->dev, "CE%d offset=0x%.8x size=0x%x\n", cs,  in aspeed_spi_get_windows()
413 	struct aspeed_spi *aspi = chip->aspi;  in aspeed_spi_chip_set_default_window()  local
418 	if (aspi->data == &ast2400_spi_data) {  in aspeed_spi_chip_set_default_window()
420 		win->size = aspi->ahb_window_size;  in aspeed_spi_chip_set_default_window()
422 		aspeed_spi_get_windows(aspi, windows);  in aspeed_spi_chip_set_default_window()
425 	chip->ahb_base = aspi->ahb_base + win->offset;  in aspeed_spi_chip_set_default_window()
428 	dev_dbg(aspi->dev, "CE%d default window [ 0x%.8x - 0x%.8x ] %dMB",  in aspeed_spi_chip_set_default_window()
429 		chip->cs, aspi->ahb_base_phy + win->offset,  in aspeed_spi_chip_set_default_window()
430 		aspi->ahb_base_phy + win->offset + win->size - 1,  in aspeed_spi_chip_set_default_window()
436 static int aspeed_spi_set_window(struct aspeed_spi *aspi,  in aspeed_spi_set_window()  argument
439 	u32 start = aspi->ahb_base_phy + win->offset;  in aspeed_spi_set_window()
441 	void __iomem *seg_reg = aspi->regs + CE0_SEGMENT_ADDR_REG + win->cs * 4;  in aspeed_spi_set_window()
443 	u32 seg_val = aspi->data->segment_reg(aspi, start, end);  in aspeed_spi_set_window()
455 		dev_err(aspi->dev, "CE%d invalid window [ 0x%.8x - 0x%.8x ] %dMB",  in aspeed_spi_set_window()
462 		dev_dbg(aspi->dev, "CE%d new window [ 0x%.8x - 0x%.8x ] %dMB",  in aspeed_spi_set_window()
465 		dev_dbg(aspi->dev, "CE%d window closed", win->cs);  in aspeed_spi_set_window()
483 	struct aspeed_spi *aspi = chip->aspi;  in aspeed_spi_chip_adjust_window()  local
489 	if (aspi->data == &ast2400_spi_data)  in aspeed_spi_chip_adjust_window()
496 	if (aspi->data == &ast2500_spi_data && chip->cs == 0 && size == SZ_128M) {  in aspeed_spi_chip_adjust_window()
498 		dev_info(aspi->dev, "CE%d window resized to %dMB (AST2500 HW quirk)",  in aspeed_spi_chip_adjust_window()
506 	if ((aspi->data == &ast2600_spi_data || aspi->data == &ast2600_fmc_data) &&  in aspeed_spi_chip_adjust_window()
509 		dev_info(aspi->dev, "CE%d window resized to %dMB (AST2600 Decoding)",  in aspeed_spi_chip_adjust_window()
513 	aspeed_spi_get_windows(aspi, windows);  in aspeed_spi_chip_adjust_window()
519 	if (win->offset + win->size > aspi->ahb_window_size) {  in aspeed_spi_chip_adjust_window()
520 		win->size = aspi->ahb_window_size - win->offset;  in aspeed_spi_chip_adjust_window()
521 		dev_warn(aspi->dev, "CE%d window resized to %dMB", chip->cs, win->size >> 20);  in aspeed_spi_chip_adjust_window()
524 	ret = aspeed_spi_set_window(aspi, win);  in aspeed_spi_chip_adjust_window()
529 	chip->ahb_base = aspi->ahb_base + win->offset;  in aspeed_spi_chip_adjust_window()
536 	if (chip->cs < aspi->data->max_cs - 1) {  in aspeed_spi_chip_adjust_window()
546 		aspeed_spi_set_window(aspi, next);  in aspeed_spi_chip_adjust_window()
555 	struct aspeed_spi *aspi = spi_controller_get_devdata(desc->mem->spi->master);  in aspeed_spi_dirmap_create()  local
556 	struct aspeed_spi_chip *chip = &aspi->chips[desc->mem->spi->chip_select];  in aspeed_spi_dirmap_create()
561 	dev_dbg(aspi->dev,  in aspeed_spi_dirmap_create()
578 		dev_warn(aspi->dev, "CE%d window (%dMB) too small for mapping",  in aspeed_spi_dirmap_create()
592 		u32 addr_mode = readl(aspi->regs + CE_CTRL_REG);  in aspeed_spi_dirmap_create()
598 		writel(addr_mode, aspi->regs + CE_CTRL_REG);  in aspeed_spi_dirmap_create()
603 		if (op->addr.nbytes == 4 && chip->aspi->data == &ast2400_spi_data)  in aspeed_spi_dirmap_create()
613 	dev_info(aspi->dev, "CE%d read buswidth:%d [0x%08x]\n",  in aspeed_spi_dirmap_create()
622 	struct aspeed_spi *aspi = spi_controller_get_devdata(desc->mem->spi->master);  in aspeed_spi_dirmap_read()  local
623 	struct aspeed_spi_chip *chip = &aspi->chips[desc->mem->spi->chip_select];  in aspeed_spi_dirmap_read()
647 static void aspeed_spi_chip_set_type(struct aspeed_spi *aspi, unsigned int cs, int type)  in aspeed_spi_chip_set_type()  argument
651 	reg = readl(aspi->regs + CONFIG_REG);  in aspeed_spi_chip_set_type()
654 	writel(reg, aspi->regs + CONFIG_REG);  in aspeed_spi_chip_set_type()
657 static void aspeed_spi_chip_enable(struct aspeed_spi *aspi, unsigned int cs, bool enable)  in aspeed_spi_chip_enable()  argument
659 	u32 we_bit = BIT(aspi->data->we0 + cs);  in aspeed_spi_chip_enable()
660 	u32 reg = readl(aspi->regs + CONFIG_REG);  in aspeed_spi_chip_enable()
666 	writel(reg, aspi->regs + CONFIG_REG);  in aspeed_spi_chip_enable()
671 	struct aspeed_spi *aspi = spi_controller_get_devdata(spi->master);  in aspeed_spi_setup()  local
672 	const struct aspeed_spi_data *data = aspi->data;  in aspeed_spi_setup()
674 	struct aspeed_spi_chip *chip = &aspi->chips[cs];  in aspeed_spi_setup()
676 	chip->aspi = aspi;  in aspeed_spi_setup()
678 	chip->ctl = aspi->regs + data->ctl0 + cs * 4;  in aspeed_spi_setup()
682 		aspeed_spi_chip_set_type(aspi, cs, CONFIG_TYPE_SPI);  in aspeed_spi_setup()
685 		dev_warn(aspi->dev, "CE%d window invalid", cs);  in aspeed_spi_setup()
689 	aspeed_spi_chip_enable(aspi, cs, true);  in aspeed_spi_setup()
693 	dev_dbg(aspi->dev, "CE%d setup done\n", cs);  in aspeed_spi_setup()
699 	struct aspeed_spi *aspi = spi_controller_get_devdata(spi->master);  in aspeed_spi_cleanup()  local
702 	aspeed_spi_chip_enable(aspi, cs, false);  in aspeed_spi_cleanup()
704 	dev_dbg(aspi->dev, "CE%d cleanup done\n", cs);  in aspeed_spi_cleanup()
707 static void aspeed_spi_enable(struct aspeed_spi *aspi, bool enable)  in aspeed_spi_enable()  argument
711 	for (cs = 0; cs < aspi->data->max_cs; cs++)  in aspeed_spi_enable()
712 		aspeed_spi_chip_enable(aspi, cs, enable);  in aspeed_spi_enable()
720 	struct aspeed_spi *aspi;  in aspeed_spi_probe()  local
728 	ctlr = devm_spi_alloc_master(dev, sizeof(*aspi));  in aspeed_spi_probe()
732 	aspi = spi_controller_get_devdata(ctlr);  in aspeed_spi_probe()
733 	platform_set_drvdata(pdev, aspi);  in aspeed_spi_probe()
734 	aspi->data = data;  in aspeed_spi_probe()
735 	aspi->dev = dev;  in aspeed_spi_probe()
738 	aspi->regs = devm_ioremap_resource(dev, res);  in aspeed_spi_probe()
739 	if (IS_ERR(aspi->regs))  in aspeed_spi_probe()
740 		return PTR_ERR(aspi->regs);  in aspeed_spi_probe()
743 	aspi->ahb_base = devm_ioremap_resource(dev, res);  in aspeed_spi_probe()
744 	if (IS_ERR(aspi->ahb_base)) {  in aspeed_spi_probe()
746 		return PTR_ERR(aspi->ahb_base);  in aspeed_spi_probe()
749 	aspi->ahb_window_size = resource_size(res);  in aspeed_spi_probe()
750 	aspi->ahb_base_phy = res->start;  in aspeed_spi_probe()
752 	aspi->clk = devm_clk_get(&pdev->dev, NULL);  in aspeed_spi_probe()
753 	if (IS_ERR(aspi->clk)) {  in aspeed_spi_probe()
755 		return PTR_ERR(aspi->clk);  in aspeed_spi_probe()
758 	aspi->clk_freq = clk_get_rate(aspi->clk);  in aspeed_spi_probe()
759 	if (!aspi->clk_freq) {  in aspeed_spi_probe()
764 	ret = clk_prepare_enable(aspi->clk);  in aspeed_spi_probe()
788 	clk_disable_unprepare(aspi->clk);  in aspeed_spi_probe()
794 	struct aspeed_spi *aspi = platform_get_drvdata(pdev);  in aspeed_spi_remove()  local
796 	aspeed_spi_enable(aspi, false);  in aspeed_spi_remove()
797 	clk_disable_unprepare(aspi->clk);  in aspeed_spi_remove()
810 static u32 aspeed_spi_segment_start(struct aspeed_spi *aspi, u32 reg)  in aspeed_spi_segment_start()  argument
815 static u32 aspeed_spi_segment_end(struct aspeed_spi *aspi, u32 reg)  in aspeed_spi_segment_end()  argument
820 static u32 aspeed_spi_segment_reg(struct aspeed_spi *aspi, u32 start, u32 end)  in aspeed_spi_segment_reg()  argument
832 static u32 aspeed_spi_segment_ast2600_start(struct aspeed_spi *aspi,  in aspeed_spi_segment_ast2600_start()  argument
837 	return aspi->ahb_base_phy + start_offset;  in aspeed_spi_segment_ast2600_start()
840 static u32 aspeed_spi_segment_ast2600_end(struct aspeed_spi *aspi,  in aspeed_spi_segment_ast2600_end()  argument
847 		return aspi->ahb_base_phy;  in aspeed_spi_segment_ast2600_end()
849 	return aspi->ahb_base_phy + end_offset + 0x100000;  in aspeed_spi_segment_ast2600_end()
852 static u32 aspeed_spi_segment_ast2600_reg(struct aspeed_spi *aspi,  in aspeed_spi_segment_ast2600_reg()  argument
895 	struct aspeed_spi *aspi = chip->aspi;  in aspeed_spi_calibrate()  local
896 	const struct aspeed_spi_data *data = aspi->data;  in aspeed_spi_calibrate()
912 			writel(fread_timing_val, aspi->regs + data->timing);  in aspeed_spi_calibrate()
915 		dev_dbg(aspi->dev,  in aspeed_spi_calibrate()
938 		writel(fread_timing_val, aspi->regs + data->timing);  in aspeed_spi_calibrate()
940 	dev_dbg(aspi->dev, " * -> good is pass %d [0x%08x]",  in aspeed_spi_calibrate()
976 	struct aspeed_spi *aspi = chip->aspi;  in aspeed_spi_do_calibration()  local
977 	const struct aspeed_spi_data *data = aspi->data;  in aspeed_spi_do_calibration()
978 	u32 ahb_freq = aspi->clk_freq;  in aspeed_spi_do_calibration()
985 	dev_dbg(aspi->dev, "calculate timing compensation - AHB freq: %d MHz",  in aspeed_spi_do_calibration()
1003 		dev_info(aspi->dev, "Calibration area too uniform, using low speed");  in aspeed_spi_do_calibration()
1023 		dev_dbg(aspi->dev, "Trying HCLK/%d [%08x] ...", i, tv);  in aspeed_spi_do_calibration()
1031 		dev_warn(aspi->dev, "No good frequency, using dumb slow");  in aspeed_spi_do_calibration()
1033 		dev_dbg(aspi->dev, "Found good read timings at HCLK/%d", best_div);  in aspeed_spi_do_calibration()
1050 	((chip)->aspi->regs + (chip)->aspi->data->timing +	\
1056 	struct aspeed_spi *aspi = chip->aspi;  in aspeed_spi_ast2600_calibrate()  local
1072 		dev_dbg(aspi->dev,  in aspeed_spi_ast2600_calibrate()
1088 			dev_dbg(aspi->dev,  in aspeed_spi_ast2600_calibrate()