246 				u16			csr;  in service_zero_data_request()  local
269 					csr  = musb_readw(regs, MUSB_TXCSR);  in service_zero_data_request()
270 					csr |= MUSB_TXCSR_CLRDATATOG |  in service_zero_data_request()
272 					csr &= ~(MUSB_TXCSR_P_SENDSTALL |  in service_zero_data_request()
275 					musb_writew(regs, MUSB_TXCSR, csr);  in service_zero_data_request()
277 					csr  = musb_readw(regs, MUSB_RXCSR);  in service_zero_data_request()
278 					csr |= MUSB_RXCSR_CLRDATATOG |  in service_zero_data_request()
280 					csr &= ~(MUSB_RXCSR_P_SENDSTALL |  in service_zero_data_request()
282 					musb_writew(regs, MUSB_RXCSR, csr);  in service_zero_data_request()
410 				u16			csr;  in service_zero_data_request()  local
428 					csr = musb_readw(regs, MUSB_TXCSR);  in service_zero_data_request()
429 					if (csr & MUSB_TXCSR_FIFONOTEMPTY)  in service_zero_data_request()
430 						csr |= MUSB_TXCSR_FLUSHFIFO;  in service_zero_data_request()
431 					csr |= MUSB_TXCSR_P_SENDSTALL  in service_zero_data_request()
434 					musb_writew(regs, MUSB_TXCSR, csr);  in service_zero_data_request()
436 					csr = musb_readw(regs, MUSB_RXCSR);  in service_zero_data_request()
437 					csr |= MUSB_RXCSR_P_SENDSTALL  in service_zero_data_request()
441 					musb_writew(regs, MUSB_RXCSR, csr);  in service_zero_data_request()
472 	u16			count, csr;  in ep0_rxstate()  local
492 		csr = MUSB_CSR0_P_SVDRXPKTRDY;  in ep0_rxstate()
495 			csr |= MUSB_CSR0_P_DATAEND;  in ep0_rxstate()
499 		csr = MUSB_CSR0_P_SVDRXPKTRDY | MUSB_CSR0_P_SENDSTALL;  in ep0_rxstate()
506 		musb->ackpend = csr;  in ep0_rxstate()
513 	musb_writew(regs, MUSB_CSR0, csr);  in ep0_rxstate()
527 	u16			csr = MUSB_CSR0_TXPKTRDY;  in ep0_txstate()  local
551 		csr |= MUSB_CSR0_P_DATAEND;  in ep0_txstate()
557 	musb_writew(regs, MUSB_CSR0, csr);  in ep0_txstate()
565 		musb->ackpend = csr;  in ep0_txstate()
648 	u16		csr;  in musb_g_ep0_irq()  local
655 	csr = musb_readw(regs, MUSB_CSR0);  in musb_g_ep0_irq()
659 			csr, len,  in musb_g_ep0_irq()
663 	if (csr & MUSB_CSR0_P_DATAEND) {  in musb_g_ep0_irq()
672 	if (csr & MUSB_CSR0_P_SENTSTALL) {  in musb_g_ep0_irq()
674 				csr & ~MUSB_CSR0_P_SENTSTALL);  in musb_g_ep0_irq()
677 		csr = musb_readw(regs, MUSB_CSR0);  in musb_g_ep0_irq()
681 	if (csr & MUSB_CSR0_P_SETUPEND) {  in musb_g_ep0_irq()
696 		csr = musb_readw(regs, MUSB_CSR0);  in musb_g_ep0_irq()
708 		if ((csr & MUSB_CSR0_TXPKTRDY) == 0) {  in musb_g_ep0_irq()
716 		if (csr & MUSB_CSR0_RXPKTRDY) {  in musb_g_ep0_irq()
761 		if (csr & MUSB_CSR0_RXPKTRDY)  in musb_g_ep0_irq()
781 		if (csr & MUSB_CSR0_RXPKTRDY) {  in musb_g_ep0_irq()
850 				handled, csr,  in musb_g_ep0_irq()
1004 	u16			csr;  in musb_g_ep0_halt()  local
1023 	csr = musb->ackpend;  in musb_g_ep0_halt()
1033 		csr = musb_readw(regs, MUSB_CSR0);  in musb_g_ep0_halt()
1042 		csr |= MUSB_CSR0_P_SENDSTALL;  in musb_g_ep0_halt()
1043 		musb_writew(regs, MUSB_CSR0, csr);  in musb_g_ep0_halt()