1 /*arch/powerpc/platforms/8xx/mpc86xads_setup.c
3 * Platform setup for the Freescale mpc86xads board
5 * Vitaly Bordug <vbordug@ru.mvista.com>
7 * Copyright 2005 MontaVista Software Inc.
9 * This file is licensed under the terms of the GNU General Public License
10 * version 2. This program is licensed "as is" without any warranty of any
11 * kind, whether express or implied.
14 #include <linux/init.h>
15 #include <linux/module.h>
16 #include <linux/param.h>
17 #include <linux/string.h>
18 #include <linux/ioport.h>
19 #include <linux/device.h>
20 #include <linux/delay.h>
21 #include <linux/root_dev.h>
23 #include <linux/fs_enet_pd.h>
24 #include <linux/fs_uart_pd.h>
25 #include <linux/mii.h>
27 #include <asm/delay.h>
29 #include <asm/machdep.h>
31 #include <asm/processor.h>
32 #include <asm/system.h>
34 #include <asm/mpc8xx.h>
35 #include <asm/8xx_immap.h>
36 #include <asm/commproc.h>
37 #include <asm/fs_pd.h>
40 extern void cpm_reset(void);
41 extern void mpc8xx_show_cpuinfo(struct seq_file*);
42 extern void mpc8xx_restart(char *cmd);
43 extern void mpc8xx_calibrate_decr(void);
44 extern int mpc8xx_set_rtc_time(struct rtc_time *tm);
45 extern void mpc8xx_get_rtc_time(struct rtc_time *tm);
46 extern void m8xx_pic_init(void);
47 extern unsigned int mpc8xx_get_irq(void);
49 static void init_smc1_uart_ioports(struct fs_uart_platform_info* fpi);
50 static void init_smc2_uart_ioports(struct fs_uart_platform_info* fpi);
51 static void init_scc1_ioports(struct fs_platform_info* ptr);
53 void __init mpc86xads_board_setup(void)
56 unsigned int *bcsr_io;
59 bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
60 cp = (cpm8xx_t *)immr_map(im_cpm);
62 if (bcsr_io == NULL) {
63 printk(KERN_CRIT "Could not remap BCSR\n");
66 #ifdef CONFIG_SERIAL_CPM_SMC1
67 clrbits32(bcsr_io, BCSR1_RS232EN_1);
68 clrbits32(&cp->cp_simode, 0xe0000000 >> 17); /* brg1 */
69 tmpval8 = in_8(&(cp->cp_smc[0].smc_smcm)) | (SMCM_RX | SMCM_TX);
70 out_8(&(cp->cp_smc[0].smc_smcm), tmpval8);
71 clrbits16(&cp->cp_smc[0].smc_smcmr, SMCMR_REN | SMCMR_TEN);
73 setbits32(bcsr_io,BCSR1_RS232EN_1);
74 out_be16(&cp->cp_smc[0].smc_smcmr, 0);
75 out_8(&cp->cp_smc[0].smc_smce, 0);
78 #ifdef CONFIG_SERIAL_CPM_SMC2
79 clrbits32(bcsr_io,BCSR1_RS232EN_2);
80 clrbits32(&cp->cp_simode, 0xe0000000 >> 1);
81 setbits32(&cp->cp_simode, 0x20000000 >> 1); /* brg2 */
82 tmpval8 = in_8(&(cp->cp_smc[1].smc_smcm)) | (SMCM_RX | SMCM_TX);
83 out_8(&(cp->cp_smc[1].smc_smcm), tmpval8);
84 clrbits16(&cp->cp_smc[1].smc_smcmr, SMCMR_REN | SMCMR_TEN);
86 init_smc2_uart_ioports(0);
88 setbits32(bcsr_io,BCSR1_RS232EN_2);
89 out_be16(&cp->cp_smc[1].smc_smcmr, 0);
90 out_8(&cp->cp_smc[1].smc_smce, 0);
97 static void init_fec1_ioports(struct fs_platform_info* ptr)
99 iop8xx_t *io_port = (iop8xx_t *)immr_map(im_ioport);
101 /* configure FEC1 pins */
103 setbits16(&io_port->iop_pdpar, 0x1fff);
104 setbits16(&io_port->iop_pddir, 0x1fff);
109 void init_fec_ioports(struct fs_platform_info *fpi)
111 int fec_no = fs_get_fec_index(fpi->fs_no);
115 init_fec1_ioports(fpi);
118 printk(KERN_ERR "init_fec_ioports: invalid FEC number\n");
123 static void init_scc1_ioports(struct fs_platform_info* fpi)
129 bcsr_io = ioremap(BCSR_ADDR, BCSR_SIZE);
130 io_port = (iop8xx_t *)immr_map(im_ioport);
131 cp = (cpm8xx_t *)immr_map(im_cpm);
133 if (bcsr_io == NULL) {
134 printk(KERN_CRIT "Could not remap BCSR\n");
138 /* Configure port A pins for Txd and Rxd.
140 setbits16(&io_port->iop_papar, PA_ENET_RXD | PA_ENET_TXD);
141 clrbits16(&io_port->iop_padir, PA_ENET_RXD | PA_ENET_TXD);
142 clrbits16(&io_port->iop_paodr, PA_ENET_TXD);
144 /* Configure port C pins to enable CLSN and RENA.
146 clrbits16(&io_port->iop_pcpar, PC_ENET_CLSN | PC_ENET_RENA);
147 clrbits16(&io_port->iop_pcdir, PC_ENET_CLSN | PC_ENET_RENA);
148 setbits16(&io_port->iop_pcso, PC_ENET_CLSN | PC_ENET_RENA);
150 /* Configure port A for TCLK and RCLK.
152 setbits16(&io_port->iop_papar, PA_ENET_TCLK | PA_ENET_RCLK);
153 clrbits16(&io_port->iop_padir, PA_ENET_TCLK | PA_ENET_RCLK);
154 clrbits32(&cp->cp_pbpar, PB_ENET_TENA);
155 clrbits32(&cp->cp_pbdir, PB_ENET_TENA);
157 /* Configure Serial Interface clock routing.
158 * First, clear all SCC bits to zero, then set the ones we want.
160 clrbits32(&cp->cp_sicr, SICR_ENET_MASK);
161 setbits32(&cp->cp_sicr, SICR_ENET_CLKRT);
163 /* In the original SCC enet driver the following code is placed at
164 the end of the initialization */
165 setbits32(&cp->cp_pbpar, PB_ENET_TENA);
166 setbits32(&cp->cp_pbdir, PB_ENET_TENA);
168 clrbits32(bcsr_io+1, BCSR1_ETHEN);
174 void init_scc_ioports(struct fs_platform_info *fpi)
176 int scc_no = fs_get_scc_index(fpi->fs_no);
180 init_scc1_ioports(fpi);
183 printk(KERN_ERR "init_scc_ioports: invalid SCC number\n");
190 static void init_smc1_uart_ioports(struct fs_uart_platform_info* ptr)
193 cpm8xx_t *cp = (cpm8xx_t *)immr_map(im_cpm);
195 setbits32(&cp->cp_pbpar, 0x000000c0);
196 clrbits32(&cp->cp_pbdir, 0x000000c0);
197 clrbits16(&cp->cp_pbodr, 0x00c0);
200 bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
202 if (bcsr_io == NULL) {
203 printk(KERN_CRIT "Could not remap BCSR1\n");
206 clrbits32(bcsr_io,BCSR1_RS232EN_1);
210 static void init_smc2_uart_ioports(struct fs_uart_platform_info* fpi)
213 cpm8xx_t *cp = (cpm8xx_t *)immr_map(im_cpm);
215 setbits32(&cp->cp_pbpar, 0x00000c00);
216 clrbits32(&cp->cp_pbdir, 0x00000c00);
217 clrbits16(&cp->cp_pbodr, 0x0c00);
220 bcsr_io = ioremap(BCSR1, sizeof(unsigned long));
222 if (bcsr_io == NULL) {
223 printk(KERN_CRIT "Could not remap BCSR1\n");
226 clrbits32(bcsr_io,BCSR1_RS232EN_2);
230 void init_smc_ioports(struct fs_uart_platform_info *data)
232 int smc_no = fs_uart_id_fsid2smc(data->fs_no);
236 init_smc1_uart_ioports(data);
237 data->brg = data->clk_rx;
240 init_smc2_uart_ioports(data);
241 data->brg = data->clk_rx;
244 printk(KERN_ERR "init_scc_ioports: invalid SCC number\n");
249 int platform_device_skip(const char *model, int id)
254 static void __init mpc86xads_setup_arch(void)
258 mpc86xads_board_setup();
263 static int __init mpc86xads_probe(void)
265 char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
269 if (strcmp(model, "MPC866ADS"))
275 define_machine(mpc86x_ads) {
276 .name = "MPC86x ADS",
277 .probe = mpc86xads_probe,
278 .setup_arch = mpc86xads_setup_arch,
279 .init_IRQ = m8xx_pic_init,
280 .show_cpuinfo = mpc8xx_show_cpuinfo,
281 .get_irq = mpc8xx_get_irq,
282 .restart = mpc8xx_restart,
283 .calibrate_decr = mpc8xx_calibrate_decr,
284 .set_rtc_time = mpc8xx_set_rtc_time,
285 .get_rtc_time = mpc8xx_get_rtc_time,