96 	struct jz4780_nemc *nemc = dev_get_drvdata(dev->parent);  in jz4780_nemc_set_type()  local
99 	nfcsr = readl(nemc->base + NEMC_NFCSR);  in jz4780_nemc_set_type()
112 	writel(nfcsr, nemc->base + NEMC_NFCSR);  in jz4780_nemc_set_type()
127 	struct jz4780_nemc *nemc = dev_get_drvdata(dev->parent);  in jz4780_nemc_assert()  local
130 	nfcsr = readl(nemc->base + NEMC_NFCSR);  in jz4780_nemc_assert()
137 	writel(nfcsr, nemc->base + NEMC_NFCSR);  in jz4780_nemc_assert()
141 static uint32_t jz4780_nemc_clk_period(struct jz4780_nemc *nemc)  in jz4780_nemc_clk_period()  argument
145 	rate = clk_get_rate(nemc->clk);  in jz4780_nemc_clk_period()
153 static uint32_t jz4780_nemc_ns_to_cycles(struct jz4780_nemc *nemc, uint32_t ns)  in jz4780_nemc_ns_to_cycles()  argument
155 	return ((ns * 1000) + nemc->clk_period - 1) / nemc->clk_period;  in jz4780_nemc_ns_to_cycles()
158 static bool jz4780_nemc_configure_bank(struct jz4780_nemc *nemc,  in jz4780_nemc_configure_bank()  argument
187 	smcr = readl(nemc->base + NEMC_SMCRn(bank));  in jz4780_nemc_configure_bank()
201 			dev_err(nemc->dev, "unsupported bus width: %u\n", val);  in jz4780_nemc_configure_bank()
208 		cycles = jz4780_nemc_ns_to_cycles(nemc, val);  in jz4780_nemc_configure_bank()
209 		if (cycles > nemc->soc_info->tas_tah_cycles_max) {  in jz4780_nemc_configure_bank()
210 			dev_err(nemc->dev, "tAS %u is too high (%u cycles)\n",  in jz4780_nemc_configure_bank()
220 		cycles = jz4780_nemc_ns_to_cycles(nemc, val);  in jz4780_nemc_configure_bank()
221 		if (cycles > nemc->soc_info->tas_tah_cycles_max) {  in jz4780_nemc_configure_bank()
222 			dev_err(nemc->dev, "tAH %u is too high (%u cycles)\n",  in jz4780_nemc_configure_bank()
232 		cycles = jz4780_nemc_ns_to_cycles(nemc, val);  in jz4780_nemc_configure_bank()
234 			dev_err(nemc->dev, "tBP %u is too high (%u cycles)\n",  in jz4780_nemc_configure_bank()
244 		cycles = jz4780_nemc_ns_to_cycles(nemc, val);  in jz4780_nemc_configure_bank()
246 			dev_err(nemc->dev, "tAW %u is too high (%u cycles)\n",  in jz4780_nemc_configure_bank()
256 		cycles = jz4780_nemc_ns_to_cycles(nemc, val);  in jz4780_nemc_configure_bank()
258 			dev_err(nemc->dev, "tSTRV %u is too high (%u cycles)\n",  in jz4780_nemc_configure_bank()
266 	writel(smcr, nemc->base + NEMC_SMCRn(bank));  in jz4780_nemc_configure_bank()
273 	struct jz4780_nemc *nemc;  in jz4780_nemc_probe()  local
281 	nemc = devm_kzalloc(dev, sizeof(*nemc), GFP_KERNEL);  in jz4780_nemc_probe()
282 	if (!nemc)  in jz4780_nemc_probe()
285 	nemc->soc_info = device_get_match_data(dev);  in jz4780_nemc_probe()
286 	if (!nemc->soc_info)  in jz4780_nemc_probe()
289 	spin_lock_init(&nemc->lock);  in jz4780_nemc_probe()
290 	nemc->dev = dev;  in jz4780_nemc_probe()
307 	nemc->base = devm_ioremap(dev, res->start, NEMC_REG_LEN);  in jz4780_nemc_probe()
308 	if (!nemc->base) {  in jz4780_nemc_probe()
313 	writel(0, nemc->base + NEMC_NFCSR);  in jz4780_nemc_probe()
315 	nemc->clk = devm_clk_get(dev, NULL);  in jz4780_nemc_probe()
316 	if (IS_ERR(nemc->clk)) {  in jz4780_nemc_probe()
318 		return PTR_ERR(nemc->clk);  in jz4780_nemc_probe()
321 	ret = clk_prepare_enable(nemc->clk);  in jz4780_nemc_probe()
327 	nemc->clk_period = jz4780_nemc_clk_period(nemc);  in jz4780_nemc_probe()
328 	if (!nemc->clk_period) {  in jz4780_nemc_probe()
330 		clk_disable_unprepare(nemc->clk);  in jz4780_nemc_probe()
340 	for_each_child_of_node(nemc->dev->of_node, child) {  in jz4780_nemc_probe()
346 				dev_err(nemc->dev,  in jz4780_nemc_probe()
359 			dev_err(nemc->dev, "%pOF has no addresses\n",  in jz4780_nemc_probe()
362 		} else if (nemc->banks_present & referenced) {  in jz4780_nemc_probe()
363 			dev_err(nemc->dev, "%pOF conflicts with another node\n",  in jz4780_nemc_probe()
370 			if (!jz4780_nemc_configure_bank(nemc, bank, child)) {  in jz4780_nemc_probe()
377 			if (of_platform_device_create(child, NULL, nemc->dev))  in jz4780_nemc_probe()
378 				nemc->banks_present |= referenced;  in jz4780_nemc_probe()
382 	platform_set_drvdata(pdev, nemc);  in jz4780_nemc_probe()
389 	struct jz4780_nemc *nemc = platform_get_drvdata(pdev);  in jz4780_nemc_remove()  local
391 	clk_disable_unprepare(nemc->clk);  in jz4780_nemc_remove()