45 #include <dev/clk/clk.h>
46 #include <dev/fdt/fdt_common.h>
47 #include <dev/ofw/ofw_bus_subr.h>
87 	device_t		dev;  member
120 static int flex_spi_attach(device_t dev);
121 static int flex_spi_probe(device_t dev);
122 static int flex_spi_detach(device_t dev);
213 		lut |= LUT_DEF(1, LUT_ADDR, LUT_PAD(1), 3*8);  in flex_spi_prepare_lut()
215 		lut = LUT_DEF(0, LUT_DUMMY, LUT_PAD(1), 1*8);  in flex_spi_prepare_lut()
218 		write_reg(sc, FSPI_LUT_REG(lut_id) + 8, 0);  in flex_spi_prepare_lut()
228 		lut |= LUT_DEF(1, LUT_ADDR, LUT_PAD(1), 3*8);  in flex_spi_prepare_lut()
232 		write_reg(sc, FSPI_LUT_REG(lut_id) + 8, 0);  in flex_spi_prepare_lut()
246 		lut |= LUT_DEF(1, LUT_ADDR, LUT_PAD(1), 3*8);  in flex_spi_prepare_lut()
271 	lut |= LUT_DEF(1, LUT_ADDR, LUT_PAD(1), 3*8);  in flex_spi_prepare_ahb_lut()
273 	lut = LUT_DEF(0, LUT_DUMMY, LUT_PAD(1), 1*8);  in flex_spi_prepare_ahb_lut()
276 	write_reg(sc, FSPI_LUT_REG(lut_id) + 8, 0);  in flex_spi_prepare_ahb_lut()
292 	 * Default value of water mark level is 8 bytes, hence in single  in flex_spi_read_rxfifo()
293 	 * read request controller can read max 8 bytes of data.  in flex_spi_read_rxfifo()
297 		if (i % 8 == 0) {  in flex_spi_read_rxfifo()
301 				device_printf(sc->dev,  in flex_spi_read_rxfifo()
305 		if (i % 8 == 0)  in flex_spi_read_rxfifo()
316 		if (i % 8 != 0)  in flex_spi_read_rxfifo()
335 	 * Default value of water mark level is 8 bytes, hence in single  in flex_spi_write_txfifo()
336 	 * read request controller can read max 8 bytes of data.  in flex_spi_write_txfifo()
340 		if (i % 8 == 0) {  in flex_spi_write_txfifo()
344 				device_printf(sc->dev,  in flex_spi_write_txfifo()
355 		if (i % 8 == 0)  in flex_spi_write_txfifo()
361 		if (i % 8 != 0)  in flex_spi_write_txfifo()
411 		device_printf(sc->dev, "timed out waiting for command completion\n");  in flex_spi_do_op()
442 		device_printf(sc->dev, "%s: timed out waiting for controller", __func__);  in flex_spi_wait_for_flash()
450 			device_printf(sc->dev, "ERROR: failed to get flash status\n");  in flex_spi_wait_for_flash()
468 		device_printf(sc->dev, "ERROR: failed to identify device\n");  in flex_spi_identify()
475 			device_printf(sc->dev, "found %s Flash\n", finfo->name);  in flex_spi_identify()
510 		device_printf(sc->dev,  in flex_spi_read()
557 		device_printf(sc->dev, "ERROR: failed to enable writes\n");  in flex_spi_write()
573 			device_printf(sc->dev, "ERROR: failed to read sector %d\n",  in flex_spi_write()
583 			device_printf(sc->dev, "ERROR: failed to erase sector %d\n",  in flex_spi_write()
600 				device_printf(sc->dev, "ERROR: failed to write address %ld\n",  in flex_spi_write()
615 		device_printf(sc->dev, "ERROR: failed to disable writes\n");  in flex_spi_write()
643 		device_printf(sc->dev, "time out waiting for reset");  in flex_spi_default_setup()
674 	write_reg(sc, FSPI_AHBRX_BUF7CR0, (2048 / 8 |  in flex_spi_default_setup()
694 flex_spi_probe(device_t dev)  in flex_spi_probe()  argument
697 	if (!ofw_bus_status_okay(dev))  in flex_spi_probe()
700 	if (!ofw_bus_search_compatible(dev, flex_spi_compat_data)->ocd_data)  in flex_spi_probe()
703 	device_set_desc(dev, "NXP FlexSPI Flash");  in flex_spi_probe()
708 flex_spi_attach(device_t dev)  in flex_spi_attach()  argument
715 	node = ofw_bus_get_node(dev);  in flex_spi_attach()
716 	sc = device_get_softc(dev);  in flex_spi_attach()
717 	sc->dev = dev;  in flex_spi_attach()
723 	sc->mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,  in flex_spi_attach()
727 	sc->ahb_mem_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid,  in flex_spi_attach()
731 		device_printf(dev, "could not allocate resources\n");  in flex_spi_attach()
732 		flex_spi_detach(dev);  in flex_spi_attach()
737 	if ((clk_get_by_ofw_name(dev, node, "fspi_en", &sc->fspi_clk_en) != 0)  in flex_spi_attach()
739 		device_printf(dev, "could not get fspi_en clock\n");  in flex_spi_attach()
740 		flex_spi_detach(dev);  in flex_spi_attach()
743 	if ((clk_get_by_ofw_name(dev, node, "fspi", &sc->fspi_clk) != 0)  in flex_spi_attach()
745 		device_printf(dev, "could not get fspi clock\n");  in flex_spi_attach()
746 		flex_spi_detach(dev);  in flex_spi_attach()
753 		device_printf(dev, "could not enable clocks\n");  in flex_spi_attach()
754 		flex_spi_detach(dev);  in flex_spi_attach()
765 		device_printf(sc->dev, "Unable to initialize defaults\n");  in flex_spi_attach()
766 		flex_spi_detach(dev);  in flex_spi_attach()
772 		device_printf(sc->dev, "Unable to identify Flash\n");  in flex_spi_attach()
773 		flex_spi_detach(dev);  in flex_spi_attach()
778 		device_printf(sc->dev, "Unable to set up SPI max clock\n");  in flex_spi_attach()
779 		flex_spi_detach(dev);  in flex_spi_attach()
796 	sc->disk->d_unit = device_get_unit(sc->dev);  in flex_spi_attach()
811 flex_spi_detach(device_t dev)  in flex_spi_detach()  argument
816 	sc = device_get_softc(dev);  in flex_spi_detach()
819 	if (!device_is_attached(dev))  in flex_spi_detach()
831 				device_printf(sc->dev,  in flex_spi_detach()
849 		bus_release_resource(dev, SYS_RES_MEMORY,  in flex_spi_detach()
853 		bus_release_resource(dev, SYS_RES_MEMORY,  in flex_spi_detach()
905 	device_t dev;  in flex_spi_getattr()  local
912 	dev = sc->dev;  in flex_spi_getattr()
918 	if (bp->bio_length != sizeof(dev)) {  in flex_spi_getattr()
922 	bcopy(&dev, bp->bio_data, sizeof(dev));  in flex_spi_getattr()