1 // SPDX-License-Identifier: GPL-2.0-or-later
12 #include <linux/dma-map-ops.h>
15 #include <linux/soc/ti/omap1-io.h>
24 /* These routines should handle the standard chip-specific modes
27  * Some board-*.c files will need to set up additional mux options,
32  *  - 1611B H2 (with usb1 mini-AB) using standard Mini-B or OTG cables
33  *  - 5912 OSK OHCI (with usb0 standard-A), standard A-to-B cables
34  *  - 5912 OSK UDC, with *nonstandard* A-to-A cable
35  *  - 1510 Innovator UDC with bundled usb0 cable
36  *  - 1510 Innovator OHCI with bundled usb1/usb2 cable
37  *  - 1510 Innovator OHCI with custom usb0 cable, feeding 5V VBUS
38  *  - 1710 custom development board using alternate pin group
39  *  - 1710 H3 (with usb1 mini-AB) using standard Mini-B or OTG cables
50 static void __init
51 omap_otg_init(struct omap_usb_config *config)  in omap_otg_init()  argument
66 	if (config->pins[0] > 2)	/* alt pingroup 2 */  in omap_otg_init()
68 	syscon |= config->usb0_init(config->pins[0], is_usb0_device(config));  in omap_otg_init()
69 	syscon |= config->usb1_init(config->pins[1]);  in omap_otg_init()
70 	syscon |= config->usb2_init(config->pins[2], alt_pingroup);  in omap_otg_init()
74 	syscon = config->hmc_mode;  in omap_otg_init()
77 	if (config->otg)  in omap_otg_init()
85 	printk("USB: hmc %d", config->hmc_mode);  in omap_otg_init()
87 		pr_cont(", usb2 alt %d wires", config->pins[2]);  in omap_otg_init()
88 	else if (config->pins[0])  in omap_otg_init()
89 		pr_cont(", usb0 %d wires%s", config->pins[0],  in omap_otg_init()
90 			is_usb0_device(config) ? " (dev)" : "");  in omap_otg_init()
91 	if (config->pins[1])  in omap_otg_init()
92 		pr_cont(", usb1 %d wires", config->pins[1]);  in omap_otg_init()
93 	if (!alt_pingroup && config->pins[2])  in omap_otg_init()
94 		pr_cont(", usb2 %d wires", config->pins[2]);  in omap_otg_init()
95 	if (config->otg)  in omap_otg_init()
96 		pr_cont(", Mini-AB on usb%d", config->otg - 1);  in omap_otg_init()
113 	if (config->otg || config->register_dev) {  in omap_otg_init()
114 		struct platform_device *udc_device = config->udc_device;  in omap_otg_init()
118 		udc_device->dev.platform_data = config;  in omap_otg_init()
126 	if (config->otg || config->register_host) {  in omap_otg_init()
127 		struct platform_device *ohci_device = config->ohci_device;  in omap_otg_init()
131 		ohci_device->dev.platform_data = config;  in omap_otg_init()
139 	if (config->otg) {  in omap_otg_init()
140 		struct platform_device *otg_device = config->otg_device;  in omap_otg_init()
144 		otg_device->dev.platform_data = config;  in omap_otg_init()
155 static void omap_otg_init(struct omap_usb_config *config) {}  in omap_otg_init()  argument
160 static struct resource udc_resources[] = {
178 static u64 udc_dmamask = ~(u32)0;
180 static struct platform_device udc_device = {
182 	.id		= -1,
191 static inline void udc_device_init(struct omap_usb_config *pdata)  in udc_device_init()
193 	pdata->udc_device = &udc_device;  in udc_device_init()
198 static inline void udc_device_init(struct omap_usb_config *pdata)  in udc_device_init()
205 static u64 ohci_dmamask = ~(u32)0;
207 static struct resource ohci_resources[] = {
219 static struct platform_device ohci_device = {
221 	.id			= -1,
230 static inline void ohci_device_init(struct omap_usb_config *pdata)  in ohci_device_init()
235 	pdata->ohci_device = &ohci_device;  in ohci_device_init()
236 	pdata->ocpi_enable = &ocpi_enable;  in ohci_device_init()
241 static struct resource otg_resources[] = {
253 static struct platform_device otg_device = {
255 	.id		= -1,
260 static inline void otg_device_init(struct omap_usb_config *pdata)  in otg_device_init()
262 	pdata->otg_device = &otg_device;  in otg_device_init()
267 static inline void otg_device_init(struct omap_usb_config *pdata)  in otg_device_init()
273 static u32 __init omap1_usb0_init(unsigned nwires, unsigned is_device)  in omap1_usb0_init()
281 			/* pulldown D+/D- */  in omap1_usb0_init()
300 			/* This works on 1510-Innovator */  in omap1_usb0_init()
305 		 *  - peripheral should configure VBUS detection!  in omap1_usb0_init()
306 		 *  - only peripherals may use the internal D+/D- pulldowns  in omap1_usb0_init()
307 		 *  - OTG support on this port not yet written  in omap1_usb0_init()
319 	/* alternate pin config, external transceiver */  in omap1_usb0_init()
321 		printk(KERN_ERR "no usb0 alt pin config on 15xx\n");  in omap1_usb0_init()
364 		printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",  in omap1_usb0_init()
371 static u32 __init omap1_usb1_init(unsigned nwires)  in omap1_usb1_init()
430 		printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",  in omap1_usb1_init()
437 static u32 __init omap1_usb2_init(unsigned nwires, unsigned alt_pingroup)  in omap1_usb2_init()
503 		printk(KERN_ERR "illegal usb%d %d-wire transceiver\n",  in omap1_usb2_init()
511 /* OMAP-1510 OHCI has its own MMU for DMA */
523  * Bus address is physical address, except for OMAP-1510 Local Bus.
524  * OMAP-1510 bus address is translated into a Local Bus address if the
530  * OMAP-1510 specific Local Bus clock on/off
532 static int omap_1510_local_bus_power(int on)  in omap_1510_local_bus_power()
545  * OMAP-1510 specific Local Bus initialization
547  *       See also arch/mach-omap/memory.h for __virt_to_dma() and
551 static int omap_1510_local_bus_init(void)  in omap_1510_local_bus_init()
579 static void omap_1510_local_bus_reset(void)  in omap_1510_local_bus_reset()
593 static void __init omap_1510_usb_init(struct omap_usb_config *config)  in omap_1510_usb_init()  argument
598 	config->usb0_init(config->pins[0], is_usb0_device(config));  in omap_1510_usb_init()
599 	config->usb1_init(config->pins[1]);  in omap_1510_usb_init()
600 	config->usb2_init(config->pins[2], 0);  in omap_1510_usb_init()
603 	val |= (config->hmc_mode << 1);  in omap_1510_usb_init()
606 	printk("USB: hmc %d", config->hmc_mode);  in omap_1510_usb_init()
607 	if (config->pins[0])  in omap_1510_usb_init()
608 		pr_cont(", usb0 %d wires%s", config->pins[0],  in omap_1510_usb_init()
609 			is_usb0_device(config) ? " (dev)" : "");  in omap_1510_usb_init()
610 	if (config->pins[1])  in omap_1510_usb_init()
611 		pr_cont(", usb1 %d wires", config->pins[1]);  in omap_1510_usb_init()
612 	if (config->pins[2])  in omap_1510_usb_init()
613 		pr_cont(", usb2 %d wires", config->pins[2]);  in omap_1510_usb_init()
636 	if (config->register_dev) {  in omap_1510_usb_init()
639 		udc_device.dev.platform_data = config;  in omap_1510_usb_init()
647 	if (IS_ENABLED(CONFIG_USB_OHCI_HCD) && config->register_host) {  in omap_1510_usb_init()
650 		ohci_device.dev.platform_data = config;  in omap_1510_usb_init()
652 				      OMAP1510_LB_OFFSET, (u64)-1);  in omap_1510_usb_init()
658 		config->lb_reset = omap_1510_local_bus_reset;  in omap_1510_usb_init()
663 static inline void omap_1510_usb_init(struct omap_usb_config *config) {}  in omap_1510_usb_init()  argument
674 	pdata->usb0_init = omap1_usb0_init;  in omap1_usb_init()
675 	pdata->usb1_init = omap1_usb1_init;  in omap1_usb_init()
676 	pdata->usb2_init = omap1_usb2_init;  in omap1_usb_init()