58 #define IXP4XX_EXP_WR_EN		BIT(1)
93 		.prop = "intel,ixp4xx-eb-t1",
99 		.prop = "intel,ixp4xx-eb-t2",
105 		.prop = "intel,ixp4xx-eb-t3",
111 		.prop = "intel,ixp4xx-eb-t4",
117 		.prop = "intel,ixp4xx-eb-t5",
123 		.prop = "intel,ixp4xx-eb-byte-access-on-halfword",
124 		.max = 1,
128 		.prop = "intel,ixp4xx-eb-hpi-hrdy-pol-high",
129 		.max = 1,
133 		.prop = "intel,ixp4xx-eb-mux-address-and-data",
134 		.max = 1,
138 		.prop = "intel,ixp4xx-eb-ahb-split-transfers",
139 		.max = 1,
143 		.prop = "intel,ixp4xx-eb-write-enable",
144 		.max = 1,
148 		.prop = "intel,ixp4xx-eb-byte-access",
149 		.max = 1,
154 static void ixp4xx_exp_setup_chipselect(struct ixp4xx_eb *eb,  in ixp4xx_exp_setup_chipselect()  argument
166 	if (eb->is_42x && (cs_index > 7)) {  in ixp4xx_exp_setup_chipselect()
167 		dev_err(eb->dev,  in ixp4xx_exp_setup_chipselect()
172 	if (eb->is_43x && (cs_index > 3)) {  in ixp4xx_exp_setup_chipselect()
173 		dev_err(eb->dev,  in ixp4xx_exp_setup_chipselect()
191 	regmap_read(eb->rmap, IXP4XX_EXP_TIMING_CS0 +  in ixp4xx_exp_setup_chipselect()
193 	dev_info(eb->dev, "CS%d at %#08x, size %#08x, config before: %#08x\n",  in ixp4xx_exp_setup_chipselect()
194 		 cs_index, eb->bus_base + IXP4XX_EXP_STRIDE * cs_index,  in ixp4xx_exp_setup_chipselect()
203 		dev_err(eb->dev, "illegal size order %d\n", cs_order);  in ixp4xx_exp_setup_chipselect()
206 	dev_dbg(eb->dev, "CS%d size order: %d\n", cs_index, cs_order);  in ixp4xx_exp_setup_chipselect()
219 		if (ip->max == 1) {  in ixp4xx_exp_setup_chipselect()
224 			dev_info(eb->dev, "CS%d %s %s\n", cs_index,  in ixp4xx_exp_setup_chipselect()
231 			dev_err(eb->dev,  in ixp4xx_exp_setup_chipselect()
239 		dev_info(eb->dev, "CS%d set %s to %u\n", cs_index, ip->prop, val);  in ixp4xx_exp_setup_chipselect()
242 	ret = of_property_read_u32(np, "intel,ixp4xx-eb-cycle-type", &val);  in ixp4xx_exp_setup_chipselect()
245 			dev_err(eb->dev, "illegal cycle type %d\n", val);  in ixp4xx_exp_setup_chipselect()
248 		dev_info(eb->dev, "CS%d set cycle type %d\n", cs_index, val);  in ixp4xx_exp_setup_chipselect()
253 	if (eb->is_43x) {  in ixp4xx_exp_setup_chipselect()
261 			dev_info(eb->dev, "claims to be Intel strata flash\n");  in ixp4xx_exp_setup_chipselect()
265 	regmap_write(eb->rmap,  in ixp4xx_exp_setup_chipselect()
268 	dev_info(eb->dev, "CS%d wrote %#08x into CS config\n", cs_index, cs_cfg);  in ixp4xx_exp_setup_chipselect()
277 		ixp4xx_exp_setup_chipselect(eb, np,  in ixp4xx_exp_setup_chipselect()
278 					    cs_index + 1,  in ixp4xx_exp_setup_chipselect()
282 static void ixp4xx_exp_setup_child(struct ixp4xx_eb *eb,  in ixp4xx_exp_setup_child()  argument
295 	dev_dbg(eb->dev, "child %s has %d register sets\n",  in ixp4xx_exp_setup_child()
309 						 i * IXP4XX_OF_REG_SIZE + 1, &rbase);  in ixp4xx_exp_setup_child()
318 			dev_err(eb->dev, "illegal CS %d\n", csindex);  in ixp4xx_exp_setup_child()
330 		dev_dbg(eb->dev, "CS%d size %#08x\n", csindex, cssize);  in ixp4xx_exp_setup_child()
340 		ixp4xx_exp_setup_chipselect(eb, np, csindex, cssize);  in ixp4xx_exp_setup_child()
348 	struct ixp4xx_eb *eb;  in ixp4xx_exp_probe()  local
354 	eb = devm_kzalloc(dev, sizeof(*eb), GFP_KERNEL);  in ixp4xx_exp_probe()
355 	if (!eb)  in ixp4xx_exp_probe()
358 	eb->dev = dev;  in ixp4xx_exp_probe()
359 	eb->is_42x = of_device_is_compatible(np, "intel,ixp42x-expansion-bus-controller");  in ixp4xx_exp_probe()
360 	eb->is_43x = of_device_is_compatible(np, "intel,ixp43x-expansion-bus-controller");  in ixp4xx_exp_probe()
362 	eb->rmap = syscon_node_to_regmap(np);  in ixp4xx_exp_probe()
363 	if (IS_ERR(eb->rmap))  in ixp4xx_exp_probe()
364 		return dev_err_probe(dev, PTR_ERR(eb->rmap), "no regmap\n");  in ixp4xx_exp_probe()
367 	ret = regmap_read(eb->rmap, IXP4XX_EXP_CNFG0, &val);  in ixp4xx_exp_probe()
371 		eb->bus_base = IXP4XX_EXP_BOOT_BASE;  in ixp4xx_exp_probe()
373 		eb->bus_base = IXP4XX_EXP_NORMAL_BASE;  in ixp4xx_exp_probe()
374 	dev_info(dev, "expansion bus at %08x\n", eb->bus_base);  in ixp4xx_exp_probe()
376 	if (eb->is_43x) {  in ixp4xx_exp_probe()
378 		regmap_read(eb->rmap, IXP43X_EXP_UNIT_FUSE_RESET, &val);  in ixp4xx_exp_probe()
383 		case 1:  in ixp4xx_exp_probe()
397 		ixp4xx_exp_setup_child(eb, child);  in ixp4xx_exp_probe()