1 // SPDX-License-Identifier: GPL-2.0+
10  * Hacked for MPC8260 by Murray.Jensen@cmst.csiro.au, 19-Oct-00.
75 	volatile ccsr_cpm_t *cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR;  in mpc85xx_serial_init()
76 	volatile ccsr_cpm_scc_t *sp;  in mpc85xx_serial_init()
77 	volatile scc_uart_t *up;  in mpc85xx_serial_init()
78 	volatile cbd_t *tbdf, *rbdf;  in mpc85xx_serial_init()
79 	volatile ccsr_cpm_cp_t *cp = &(cpm->im_cpm_cp);  in mpc85xx_serial_init()
84 	sp = (ccsr_cpm_scc_t *) &(cpm->im_cpm_scc[SCC_INDEX]);  in mpc85xx_serial_init()
85 	up = (scc_uart_t *)&(cpm->im_dprambase[PROFF_SCC]);  in mpc85xx_serial_init()
89 	sp->gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);  in mpc85xx_serial_init()
91 	/* put the SCC channel into NMSI (non multiplexd serial interface)  in mpc85xx_serial_init()
92 	 * mode and wire the selected SCC Tx and Rx clocks to BRGx (15-15).  in mpc85xx_serial_init()
94 	cpm->im_cpm_mux.cmxscr = \  in mpc85xx_serial_init()
95 		(cpm->im_cpm_mux.cmxscr&~CMXSCR_MASK)|CMXSCR_VALUE;  in mpc85xx_serial_init()
110 	rbdf = (cbd_t *)&(cpm->im_dprambase[dpaddr]);  in mpc85xx_serial_init()
111 	rbdf->cbd_bufaddr = (uint) (rbdf+2);  in mpc85xx_serial_init()
112 	rbdf->cbd_sc = BD_SC_EMPTY | BD_SC_WRAP;  in mpc85xx_serial_init()
114 	tbdf->cbd_bufaddr = ((uint) (rbdf+2)) + 1;  in mpc85xx_serial_init()
115 	tbdf->cbd_sc = BD_SC_WRAP;  in mpc85xx_serial_init()
119 	up->scc_genscc.scc_rbase = dpaddr;  in mpc85xx_serial_init()
120 	up->scc_genscc.scc_tbase = dpaddr+sizeof(cbd_t);  in mpc85xx_serial_init()
121 	up->scc_genscc.scc_rfcr = CPMFCR_EB;  in mpc85xx_serial_init()
122 	up->scc_genscc.scc_tfcr = CPMFCR_EB;  in mpc85xx_serial_init()
123 	up->scc_genscc.scc_mrblr = 1;  in mpc85xx_serial_init()
124 	up->scc_maxidl = 0;  in mpc85xx_serial_init()
125 	up->scc_brkcr = 1;  in mpc85xx_serial_init()
126 	up->scc_parec = 0;  in mpc85xx_serial_init()
127 	up->scc_frmec = 0;  in mpc85xx_serial_init()
128 	up->scc_nosec = 0;  in mpc85xx_serial_init()
129 	up->scc_brkec = 0;  in mpc85xx_serial_init()
130 	up->scc_uaddr1 = 0;  in mpc85xx_serial_init()
131 	up->scc_uaddr2 = 0;  in mpc85xx_serial_init()
132 	up->scc_toseq = 0;  in mpc85xx_serial_init()
133 	up->scc_char1 = up->scc_char2 = up->scc_char3 = up->scc_char4 = 0x8000;  in mpc85xx_serial_init()
134 	up->scc_char5 = up->scc_char6 = up->scc_char7 = up->scc_char8 = 0x8000;  in mpc85xx_serial_init()
135 	up->scc_rccm = 0xc0ff;  in mpc85xx_serial_init()
139 	sp->sccm = 0;  in mpc85xx_serial_init()
140 	sp->scce = 0xffff;  in mpc85xx_serial_init()
144 	sp->gsmrh = SCC_GSMRH_RFW;	/* 8 bit FIFO */  in mpc85xx_serial_init()
145 	sp->gsmrl = \  in mpc85xx_serial_init()
151 	sp->psmr = SCU_PSMR_CL;  in mpc85xx_serial_init()
156 	while (cp->cpcr & CPM_CR_FLG)  /* wait if cp is busy */  in mpc85xx_serial_init()
159 	cp->cpcr = mk_cr_cmd(CPM_CR_SCC_PAGE, CPM_CR_SCC_SBLOCK,  in mpc85xx_serial_init()
162 	while (cp->cpcr & CPM_CR_FLG)  /* wait if cp is busy */  in mpc85xx_serial_init()
167 	sp->gsmrl |= SCC_GSMRL_ENR | SCC_GSMRL_ENT;  in mpc85xx_serial_init()
175 	m8560_cpm_extcbrg(SCC_INDEX, gd->baudrate,  in mpc85xx_serial_setbrg()
178 	m8560_cpm_setbrg(SCC_INDEX, gd->baudrate);  in mpc85xx_serial_setbrg()
184 	volatile scc_uart_t	*up;  in mpc85xx_serial_putc()
185 	volatile cbd_t		*tbdf;  in mpc85xx_serial_putc()
186 	volatile ccsr_cpm_t	*cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR;  in mpc85xx_serial_putc()
191 	up = (scc_uart_t *)&(cpm->im_dprambase[PROFF_SCC]);  in mpc85xx_serial_putc()
192 	tbdf = (cbd_t *)&(cpm->im_dprambase[up->scc_genscc.scc_tbase]);  in mpc85xx_serial_putc()
196 	while (tbdf->cbd_sc & BD_SC_READY)  in mpc85xx_serial_putc()
201 	*(volatile char *)tbdf->cbd_bufaddr = c;  in mpc85xx_serial_putc()
202 	tbdf->cbd_datlen = 1;  in mpc85xx_serial_putc()
203 	tbdf->cbd_sc |= BD_SC_READY;  in mpc85xx_serial_putc()
208 	volatile cbd_t		*rbdf;  in mpc85xx_serial_getc()
209 	volatile scc_uart_t	*up;  in mpc85xx_serial_getc()
210 	volatile ccsr_cpm_t	*cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR;  in mpc85xx_serial_getc()
213 	up = (scc_uart_t *)&(cpm->im_dprambase[PROFF_SCC]);  in mpc85xx_serial_getc()
214 	rbdf = (cbd_t *)&(cpm->im_dprambase[up->scc_genscc.scc_rbase]);  in mpc85xx_serial_getc()
218 	while (rbdf->cbd_sc & BD_SC_EMPTY)  in mpc85xx_serial_getc()
223 	c = *(volatile unsigned char *)rbdf->cbd_bufaddr;  in mpc85xx_serial_getc()
224 	rbdf->cbd_sc |= BD_SC_EMPTY;  in mpc85xx_serial_getc()
231 	volatile cbd_t		*rbdf;  in mpc85xx_serial_tstc()
232 	volatile scc_uart_t	*up;  in mpc85xx_serial_tstc()
233 	volatile ccsr_cpm_t	*cpm = (ccsr_cpm_t *)CONFIG_SYS_MPC85xx_CPM_ADDR;  in mpc85xx_serial_tstc()
235 	up = (scc_uart_t *)&(cpm->im_dprambase[PROFF_SCC]);  in mpc85xx_serial_tstc()
236 	rbdf = (cbd_t *)&(cpm->im_dprambase[up->scc_genscc.scc_rbase]);  in mpc85xx_serial_tstc()
238 	return ((rbdf->cbd_sc & BD_SC_EMPTY) == 0);  in mpc85xx_serial_tstc()