3  * MPC5200 PSC serial console support.
18 /* Programmable Serial Controller (PSC) status register bits */
27 static void *psc;  variable
31 	/* Assume the firmware has already configured the PSC into  in psc_open()
38 	while (!(in_be16(psc + MPC52xx_PSC_SR) & MPC52xx_PSC_SR_TXRDY)) ;  in psc_putc()
39 	out_8(psc + MPC52xx_PSC_BUFFER, c);  in psc_putc()
44 	return (in_be16(psc + MPC52xx_PSC_SR) & MPC52xx_PSC_SR_RXRDY) != 0;  in psc_tstc()
49 	while (!(in_be16(psc + MPC52xx_PSC_SR) & MPC52xx_PSC_SR_RXRDY)) ;  in psc_getc()
50 	return in_8(psc + MPC52xx_PSC_BUFFER);  in psc_getc()
55 	/* Get the base address of the psc registers */  in mpc5200_psc_console_init()
56 	if (dt_get_virtual_reg(devp, &psc, 1) < 1)  in mpc5200_psc_console_init()