3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
5 * See file CREDITS for list of people who contributed to this
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
26 #include <stdio_dev.h>
28 #include <linux/compiler.h>
31 DECLARE_GLOBAL_DATA_PTR;
33 static struct serial_device *serial_devices;
34 static struct serial_device *serial_current;
36 static void serial_null(void)
40 #define serial_initfunc(name) \
42 __attribute__((weak, alias("serial_null")));
44 serial_initfunc(mpc8xx_serial_initialize);
45 serial_initfunc(ns16550_serial_initialize);
46 serial_initfunc(pxa_serial_initialize);
47 serial_initfunc(s3c24xx_serial_initialize);
48 serial_initfunc(s5p_serial_initialize);
49 serial_initfunc(zynq_serial_initalize);
50 serial_initfunc(bfin_serial_initialize);
51 serial_initfunc(bfin_jtag_initialize);
52 serial_initfunc(mpc512x_serial_initialize);
53 serial_initfunc(uartlite_serial_initialize);
54 serial_initfunc(au1x00_serial_initialize);
55 serial_initfunc(asc_serial_initialize);
56 serial_initfunc(jz_serial_initialize);
57 serial_initfunc(mpc5xx_serial_initialize);
58 serial_initfunc(mpc8220_serial_initialize);
59 serial_initfunc(mpc8260_scc_serial_initialize);
60 serial_initfunc(mpc8260_smc_serial_initialize);
61 serial_initfunc(mpc85xx_serial_initialize);
62 serial_initfunc(iop480_serial_initialize);
63 serial_initfunc(leon2_serial_initialize);
64 serial_initfunc(leon3_serial_initialize);
65 serial_initfunc(marvell_serial_initialize);
66 serial_initfunc(amirix_serial_initialize);
67 serial_initfunc(bmw_serial_initialize);
68 serial_initfunc(cogent_serial_initialize);
69 serial_initfunc(cpci750_serial_initialize);
70 serial_initfunc(evb64260_serial_initialize);
71 serial_initfunc(ml2_serial_initialize);
72 serial_initfunc(sconsole_serial_initialize);
73 serial_initfunc(p3mx_serial_initialize);
74 serial_initfunc(altera_jtag_serial_initialize);
75 serial_initfunc(altera_serial_initialize);
76 serial_initfunc(atmel_serial_initialize);
77 serial_initfunc(lpc32xx_serial_initialize);
78 serial_initfunc(mcf_serial_initialize);
79 serial_initfunc(ns9750_serial_initialize);
80 serial_initfunc(oc_serial_initialize);
81 serial_initfunc(s3c4510b_serial_initialize);
82 serial_initfunc(s3c64xx_serial_initialize);
83 serial_initfunc(sandbox_serial_initialize);
84 serial_initfunc(clps7111_serial_initialize);
85 serial_initfunc(imx_serial_initialize);
86 serial_initfunc(ixp_serial_initialize);
87 serial_initfunc(ks8695_serial_initialize);
88 serial_initfunc(lh7a40x_serial_initialize);
89 serial_initfunc(lpc2292_serial_initialize);
90 serial_initfunc(max3100_serial_initialize);
91 serial_initfunc(mxc_serial_initialize);
92 serial_initfunc(netarm_serial_initialize);
93 serial_initfunc(pl01x_serial_initialize);
94 serial_initfunc(s3c44b0_serial_initialize);
95 serial_initfunc(sa1100_serial_initialize);
96 serial_initfunc(sh_serial_initialize);
98 void serial_register(struct serial_device *dev)
100 #ifdef CONFIG_NEEDS_MANUAL_RELOC
102 dev->start += gd->reloc_off;
104 dev->stop += gd->reloc_off;
106 dev->setbrg += gd->reloc_off;
108 dev->getc += gd->reloc_off;
110 dev->tstc += gd->reloc_off;
112 dev->putc += gd->reloc_off;
114 dev->puts += gd->reloc_off;
117 dev->next = serial_devices;
118 serial_devices = dev;
121 void serial_initialize(void)
123 mpc8xx_serial_initialize();
124 ns16550_serial_initialize();
125 pxa_serial_initialize();
126 s3c24xx_serial_initialize();
127 s5p_serial_initialize();
128 mpc512x_serial_initialize();
129 bfin_serial_initialize();
130 bfin_jtag_initialize();
131 uartlite_serial_initialize();
132 zynq_serial_initalize();
133 au1x00_serial_initialize();
134 asc_serial_initialize();
135 jz_serial_initialize();
136 mpc5xx_serial_initialize();
137 mpc8220_serial_initialize();
138 mpc8260_scc_serial_initialize();
139 mpc8260_smc_serial_initialize();
140 mpc85xx_serial_initialize();
141 iop480_serial_initialize();
142 leon2_serial_initialize();
143 leon3_serial_initialize();
144 marvell_serial_initialize();
145 amirix_serial_initialize();
146 bmw_serial_initialize();
147 cogent_serial_initialize();
148 cpci750_serial_initialize();
149 evb64260_serial_initialize();
150 ml2_serial_initialize();
151 sconsole_serial_initialize();
152 p3mx_serial_initialize();
153 altera_jtag_serial_initialize();
154 altera_serial_initialize();
155 atmel_serial_initialize();
156 lpc32xx_serial_initialize();
157 mcf_serial_initialize();
158 ns9750_serial_initialize();
159 oc_serial_initialize();
160 s3c4510b_serial_initialize();
161 s3c64xx_serial_initialize();
162 sandbox_serial_initialize();
163 clps7111_serial_initialize();
164 imx_serial_initialize();
165 ixp_serial_initialize();
166 ks8695_serial_initialize();
167 lh7a40x_serial_initialize();
168 lpc2292_serial_initialize();
169 max3100_serial_initialize();
170 mxc_serial_initialize();
171 netarm_serial_initialize();
172 pl01x_serial_initialize();
173 s3c44b0_serial_initialize();
174 sa1100_serial_initialize();
175 sh_serial_initialize();
177 serial_assign(default_serial_console()->name);
180 void serial_stdio_init(void)
182 struct stdio_dev dev;
183 struct serial_device *s = serial_devices;
186 memset(&dev, 0, sizeof(dev));
188 strcpy(dev.name, s->name);
189 dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
191 dev.start = s->start;
198 stdio_register(&dev);
204 int serial_assign(const char *name)
206 struct serial_device *s;
208 for (s = serial_devices; s; s = s->next) {
209 if (strcmp(s->name, name))
218 void serial_reinit_all(void)
220 struct serial_device *s;
222 for (s = serial_devices; s; s = s->next)
226 static struct serial_device *get_current(void)
228 struct serial_device *dev;
230 if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
231 dev = default_serial_console();
233 /* We must have a console device */
235 #ifdef CONFIG_SPL_BUILD
236 puts("Cannot find console\n");
239 panic("Cannot find console\n");
243 dev = serial_current;
247 int serial_init(void)
249 return get_current()->start();
252 void serial_setbrg(void)
254 get_current()->setbrg();
257 int serial_getc(void)
259 return get_current()->getc();
262 int serial_tstc(void)
264 return get_current()->tstc();
267 void serial_putc(const char c)
269 get_current()->putc(c);
272 void serial_puts(const char *s)
274 get_current()->puts(s);
277 void default_serial_puts(const char *s)
279 struct serial_device *dev = get_current();
284 #if CONFIG_POST & CONFIG_SYS_POST_UART
285 static const int bauds[] = CONFIG_SYS_BAUDRATE_TABLE;
287 /* Mark weak until post/cpu/.../uart.c migrate over */
289 int uart_post_test(int flags)
292 int ret, saved_baud, b;
293 struct serial_device *saved_dev, *s;
296 /* Save current serial state */
298 saved_dev = serial_current;
299 saved_baud = bd->bi_baudrate;
301 for (s = serial_devices; s; s = s->next) {
302 /* If this driver doesn't support loop back, skip it */
306 /* Test the next device */
313 /* Consume anything that happens to be queued */
314 while (serial_tstc())
317 /* Enable loop back */
320 /* Test every available baud rate */
321 for (b = 0; b < ARRAY_SIZE(bauds); ++b) {
322 bd->bi_baudrate = bauds[b];
326 * Stick to printable chars to avoid issues:
327 * - terminal corruption
328 * - serial program reacting to sequences and sending
329 * back random extra data
330 * - most serial drivers add in extra chars (like \r\n)
332 for (c = 0x20; c < 0x7f; ++c) {
336 /* Make sure it's the same one */
337 ret = (c != serial_getc());
343 /* Clean up the output in case it was sent */
345 ret = ('\b' != serial_getc());
353 /* Disable loop back */
356 /* XXX: There is no serial_stop() !? */
362 /* Restore previous serial state */
363 serial_current = saved_dev;
364 bd->bi_baudrate = saved_baud;