1 // SPDX-License-Identifier: GPL-2.0-or-later
3  * Copyright (C) 2007 PA Semi, Inc
27 static const char driver_name[] = "electra-cf";
34 	unsigned		active:1;  member
59 	gpio = in_le32(cf->gpio_base+0x40);  in electra_cf_present()
60 	return !(gpio & (1 << cf->gpio_detect));  in electra_cf_present()
74 	if (present != cf->present) {  in electra_cf_timer()
75 		cf->present = present;  in electra_cf_timer()
76 		pcmcia_parse_events(&cf->socket, SS_DETECT);  in electra_cf_timer()
79 	if (cf->active)  in electra_cf_timer()
80 		mod_timer(&cf->timer, jiffies + POLL_INTERVAL);  in electra_cf_timer()
87 	electra_cf_timer(&cf->timer);  in electra_cf_irq()
96 		return -EINVAL;  in electra_cf_get_status()
104 		s->pci_irq = cf->irq;  in electra_cf_get_status()
120 	vcc = (s->flags & SS_RESET) ? 0 : s->Vcc;  in electra_cf_set_socket()
127 		gpio = (1 << cf->gpio_3v);  in electra_cf_set_socket()
130 		gpio = (1 << cf->gpio_5v);  in electra_cf_set_socket()
133 		return -EINVAL;  in electra_cf_set_socket()
136 	gpio |= 1 << (cf->gpio_3v + 16); /* enwr */  in electra_cf_set_socket()
137 	gpio |= 1 << (cf->gpio_5v + 16); /* enwr */  in electra_cf_set_socket()
138 	out_le32(cf->gpio_base+0x90, gpio);  in electra_cf_set_socket()
141 		driver_name, s->Vcc, s->io_irq, s->flags, s->csc_mask);  in electra_cf_set_socket()
157 	if (map->card_start)  in electra_cf_set_mem_map()
158 		return -EINVAL;  in electra_cf_set_mem_map()
160 	map->static_start = cf->mem_phys;  in electra_cf_set_mem_map()
161 	map->flags &= MAP_ACTIVE|MAP_ATTRIB;  in electra_cf_set_mem_map()
162 	if (!(map->flags & MAP_ATTRIB))  in electra_cf_set_mem_map()
163 		map->static_start += 0x800;  in electra_cf_set_mem_map()
177 	struct device *device = &ofdev->dev;  in electra_cf_probe()
178 	struct device_node *np = ofdev->dev.of_node;  in electra_cf_probe()
181 	int status = -ENOMEM;  in electra_cf_probe()
187 		return -EINVAL;  in electra_cf_probe()
191 		return -EINVAL;  in electra_cf_probe()
195 		return -ENOMEM;  in electra_cf_probe()
197 	timer_setup(&cf->timer, electra_cf_timer, 0);  in electra_cf_probe()
198 	cf->irq = 0;  in electra_cf_probe()
200 	cf->ofdev = ofdev;  in electra_cf_probe()
201 	cf->mem_phys = mem.start;  in electra_cf_probe()
202 	cf->mem_size = PAGE_ALIGN(resource_size(&mem));  in electra_cf_probe()
203 	cf->mem_base = ioremap(cf->mem_phys, cf->mem_size);  in electra_cf_probe()
204 	if (!cf->mem_base)  in electra_cf_probe()
206 	cf->io_size = PAGE_ALIGN(resource_size(&io));  in electra_cf_probe()
207 	cf->io_virt = ioremap_phb(io.start, cf->io_size);  in electra_cf_probe()
208 	if (!cf->io_virt)  in electra_cf_probe()
211 	cf->gpio_base = ioremap(0xfc103000, 0x1000);  in electra_cf_probe()
212 	if (!cf->gpio_base)  in electra_cf_probe()
216 	cf->io_base = (unsigned long)cf->io_virt - VMALLOC_END;  in electra_cf_probe()
217 	cf->iomem.start = (unsigned long)cf->mem_base;  in electra_cf_probe()
218 	cf->iomem.end = (unsigned long)cf->mem_base + (mem.end - mem.start);  in electra_cf_probe()
219 	cf->iomem.flags = IORESOURCE_MEM;  in electra_cf_probe()
221 	cf->irq = irq_of_parse_and_map(np, 0);  in electra_cf_probe()
223 	status = request_irq(cf->irq, electra_cf_irq, IRQF_SHARED,  in electra_cf_probe()
230 	cf->socket.pci_irq = cf->irq;  in electra_cf_probe()
232 	status = -EINVAL;  in electra_cf_probe()
234 	prop = of_get_property(np, "card-detect-gpio", NULL);  in electra_cf_probe()
237 	cf->gpio_detect = *prop;  in electra_cf_probe()
239 	prop = of_get_property(np, "card-vsense-gpio", NULL);  in electra_cf_probe()
242 	cf->gpio_vsense = *prop;  in electra_cf_probe()
244 	prop = of_get_property(np, "card-3v-gpio", NULL);  in electra_cf_probe()
247 	cf->gpio_3v = *prop;  in electra_cf_probe()
249 	prop = of_get_property(np, "card-5v-gpio", NULL);  in electra_cf_probe()
252 	cf->gpio_5v = *prop;  in electra_cf_probe()
254 	cf->socket.io_offset = cf->io_base;  in electra_cf_probe()
256 	/* reserve chip-select regions */  in electra_cf_probe()
257 	if (!request_mem_region(cf->mem_phys, cf->mem_size, driver_name)) {  in electra_cf_probe()
258 		status = -ENXIO;  in electra_cf_probe()
263 	if (!request_region(cf->io_base, cf->io_size, driver_name)) {  in electra_cf_probe()
264 		status = -ENXIO;  in electra_cf_probe()
269 	cf->socket.owner = THIS_MODULE;  in electra_cf_probe()
270 	cf->socket.dev.parent = &ofdev->dev;  in electra_cf_probe()
271 	cf->socket.ops = &electra_cf_ops;  in electra_cf_probe()
272 	cf->socket.resource_ops = &pccard_static_ops;  in electra_cf_probe()
273 	cf->socket.features = SS_CAP_PCCARD | SS_CAP_STATIC_MAP |  in electra_cf_probe()
275 	cf->socket.map_size = 0x800;  in electra_cf_probe()
277 	status = pcmcia_register_socket(&cf->socket);  in electra_cf_probe()
284 		 cf->mem_phys, io.start, cf->irq);  in electra_cf_probe()
286 	cf->active = 1;  in electra_cf_probe()
287 	electra_cf_timer(&cf->timer);  in electra_cf_probe()
291 	release_region(cf->io_base, cf->io_size);  in electra_cf_probe()
293 	release_mem_region(cf->mem_phys, cf->mem_size);  in electra_cf_probe()
295 	if (cf->irq)  in electra_cf_probe()
296 		free_irq(cf->irq, cf);  in electra_cf_probe()
298 	iounmap(cf->gpio_base);  in electra_cf_probe()
300 	device_init_wakeup(&ofdev->dev, 0);  in electra_cf_probe()
301 	iounmap(cf->io_virt);  in electra_cf_probe()
303 	iounmap(cf->mem_base);  in electra_cf_probe()
312 	struct device *device = &ofdev->dev;  in electra_cf_remove()
317 	cf->active = 0;  in electra_cf_remove()
318 	pcmcia_unregister_socket(&cf->socket);  in electra_cf_remove()
319 	free_irq(cf->irq, cf);  in electra_cf_remove()
320 	timer_shutdown_sync(&cf->timer);  in electra_cf_remove()
322 	iounmap(cf->io_virt);  in electra_cf_remove()
323 	iounmap(cf->mem_base);  in electra_cf_remove()
324 	iounmap(cf->gpio_base);  in electra_cf_remove()
325 	release_mem_region(cf->mem_phys, cf->mem_size);  in electra_cf_remove()
326 	release_region(cf->io_base, cf->io_size);  in electra_cf_remove()
333 		.compatible   = "electra-cf",
352 MODULE_DESCRIPTION("PA Semi Electra CF driver");