243 				u16			csr;  in service_zero_data_request()  local
266 					csr  = musb_readw(regs, MUSB_TXCSR);  in service_zero_data_request()
267 					csr |= MUSB_TXCSR_CLRDATATOG |  in service_zero_data_request()
269 					csr &= ~(MUSB_TXCSR_P_SENDSTALL |  in service_zero_data_request()
272 					musb_writew(regs, MUSB_TXCSR, csr);  in service_zero_data_request()
274 					csr  = musb_readw(regs, MUSB_RXCSR);  in service_zero_data_request()
275 					csr |= MUSB_RXCSR_CLRDATATOG |  in service_zero_data_request()
277 					csr &= ~(MUSB_RXCSR_P_SENDSTALL |  in service_zero_data_request()
279 					musb_writew(regs, MUSB_RXCSR, csr);  in service_zero_data_request()
403 				u16			csr;  in service_zero_data_request()  local
421 					csr = musb_readw(regs, MUSB_TXCSR);  in service_zero_data_request()
422 					if (csr & MUSB_TXCSR_FIFONOTEMPTY)  in service_zero_data_request()
423 						csr |= MUSB_TXCSR_FLUSHFIFO;  in service_zero_data_request()
424 					csr |= MUSB_TXCSR_P_SENDSTALL  in service_zero_data_request()
427 					musb_writew(regs, MUSB_TXCSR, csr);  in service_zero_data_request()
429 					csr = musb_readw(regs, MUSB_RXCSR);  in service_zero_data_request()
430 					csr |= MUSB_RXCSR_P_SENDSTALL  in service_zero_data_request()
434 					musb_writew(regs, MUSB_RXCSR, csr);  in service_zero_data_request()
465 	u16			count, csr;  in ep0_rxstate()  local
487 		csr = MUSB_CSR0_P_SVDRXPKTRDY;  in ep0_rxstate()
490 			csr |= MUSB_CSR0_P_DATAEND;  in ep0_rxstate()
494 		csr = MUSB_CSR0_P_SVDRXPKTRDY | MUSB_CSR0_P_SENDSTALL;  in ep0_rxstate()
501 		musb->ackpend = csr;  in ep0_rxstate()
508 	musb_writew(regs, MUSB_CSR0, csr);  in ep0_rxstate()
522 	u16			csr = MUSB_CSR0_TXPKTRDY;  in ep0_txstate()  local
546 		csr |= MUSB_CSR0_P_DATAEND;  in ep0_txstate()
556 		musb->ackpend = csr;  in ep0_txstate()
565 	musb_writew(regs, MUSB_CSR0, csr);  in ep0_txstate()
643 	u16		csr;  in musb_g_ep0_irq()  local
650 	csr = musb_readw(regs, MUSB_CSR0);  in musb_g_ep0_irq()
654 			csr, len, decode_ep0stage(musb->ep0_state));  in musb_g_ep0_irq()
656 	if (csr & MUSB_CSR0_P_DATAEND) {  in musb_g_ep0_irq()
665 	if (csr & MUSB_CSR0_P_SENTSTALL) {  in musb_g_ep0_irq()
667 				csr & ~MUSB_CSR0_P_SENTSTALL);  in musb_g_ep0_irq()
670 		csr = musb_readw(regs, MUSB_CSR0);  in musb_g_ep0_irq()
674 	if (csr & MUSB_CSR0_P_SETUPEND) {  in musb_g_ep0_irq()
689 		csr = musb_readw(regs, MUSB_CSR0);  in musb_g_ep0_irq()
701 		if ((csr & MUSB_CSR0_TXPKTRDY) == 0) {  in musb_g_ep0_irq()
709 		if (csr & MUSB_CSR0_RXPKTRDY) {  in musb_g_ep0_irq()
754 		if (csr & MUSB_CSR0_RXPKTRDY)  in musb_g_ep0_irq()
774 		if (csr & MUSB_CSR0_RXPKTRDY) {  in musb_g_ep0_irq()
843 				handled, csr,  in musb_g_ep0_irq()
997 	u16			csr;  in musb_g_ep0_halt()  local
1016 	csr = musb->ackpend;  in musb_g_ep0_halt()
1026 		csr = musb_readw(regs, MUSB_CSR0);  in musb_g_ep0_halt()
1035 		csr |= MUSB_CSR0_P_SENDSTALL;  in musb_g_ep0_halt()
1036 		musb_writew(regs, MUSB_CSR0, csr);  in musb_g_ep0_halt()