10  * linux/drivers/usb/otg/ulpi.c
11  * Generic ULPI USB transceiver support
24 #include <usb/ulpi.h>
29 static struct ulpi_regs *ulpi = (struct ulpi_regs *)0;  variable
38 		err = ulpi_write(ulpi_vp, &ulpi->scratch, tval);  in ulpi_integrity_check()
42 		val = ulpi_read(ulpi_vp, &ulpi->scratch);  in ulpi_integrity_check()
44 			printf("ULPI integrity check failed\n");  in ulpi_integrity_check()
55 	u8 *reg = &ulpi->product_id_high;  in ulpi_init()
58 	/* Assemble ID from four ULPI ID registers (8 bits each). */  in ulpi_init()
68 	debug("ULPI transceiver ID 0x%04x:0x%04x\n", id >> 16, id & 0xffff);  in ulpi_init()
86 		printf("ULPI: %s: wrong transceiver speed specified: %u, "  in ulpi_select_transceiver()
90 	val = ulpi_read(ulpi_vp, &ulpi->function_ctrl);  in ulpi_select_transceiver()
97 	return ulpi_write(ulpi_vp, &ulpi->function_ctrl, val);  in ulpi_select_transceiver()
103 	u8 *reg = on ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear;  in ulpi_set_vbus()
117 	reg = external ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear;  in ulpi_set_vbus_indicator()
125 	val = ulpi_read(ulpi_vp, &ulpi->iface_ctrl);  in ulpi_set_vbus_indicator()
131 	val = ulpi_write(ulpi_vp, &ulpi->iface_ctrl, val);  in ulpi_set_vbus_indicator()
141 	u8 *reg = enable ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear;  in ulpi_set_pd()
159 		printf("ULPI: %s: wrong OpMode specified: %u, "  in ulpi_opmode_sel()
163 	val = ulpi_read(ulpi_vp, &ulpi->function_ctrl);  in ulpi_opmode_sel()
170 	return ulpi_write(ulpi_vp, &ulpi->function_ctrl, val);  in ulpi_opmode_sel()
180 		printf("ULPI: %s: unrecognized Serial Mode specified: %u\n",  in ulpi_serial_mode_enable()
185 	return ulpi_write(ulpi_vp, &ulpi->iface_ctrl_set, smode);  in ulpi_serial_mode_enable()
192 	err = ulpi_write(ulpi_vp, &ulpi->function_ctrl_clear,  in ulpi_suspend()
195 		printf("ULPI: %s: failed writing the suspend bit\n", __func__);  in ulpi_suspend()
201  * Wait for ULPI PHY reset to complete.
218 		val = ulpi_read(ulpi_vp, &ulpi->function_ctrl);  in __ulpi_reset_wait()
225 	printf("ULPI: %s: reset timed out\n", __func__);  in __ulpi_reset_wait()
237 			&ulpi->function_ctrl_set, ULPI_FC_RESET);  in ulpi_reset()
239 		printf("ULPI: %s: failed writing reset bit\n", __func__);  in ulpi_reset()