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>
30 DECLARE_GLOBAL_DATA_PTR
;
32 static struct serial_device
*serial_devices
;
33 static struct serial_device
*serial_current
;
35 static void serial_null(void)
39 #define serial_initfunc(name) \
41 __attribute__((weak, alias("serial_null")));
43 serial_initfunc(mpc8xx_serial_initialize
);
44 serial_initfunc(ns16550_serial_initialize
);
45 serial_initfunc(pxa_serial_initialize
);
46 serial_initfunc(s3c24xx_serial_initialize
);
47 serial_initfunc(s5p_serial_initialize
);
48 serial_initfunc(zynq_serial_initalize
);
49 serial_initfunc(bfin_serial_initialize
);
50 serial_initfunc(bfin_jtag_initialize
);
51 serial_initfunc(mpc512x_serial_initialize
);
52 serial_initfunc(uartlite_serial_initialize
);
53 serial_initfunc(au1x00_serial_initialize
);
54 serial_initfunc(asc_serial_initialize
);
55 serial_initfunc(jz_serial_initialize
);
56 serial_initfunc(mpc5xx_serial_initialize
);
57 serial_initfunc(mpc8220_serial_initialize
);
58 serial_initfunc(mpc8260_scc_serial_initialize
);
59 serial_initfunc(mpc8260_smc_serial_initialize
);
60 serial_initfunc(mpc85xx_serial_initialize
);
61 serial_initfunc(iop480_serial_initialize
);
62 serial_initfunc(leon2_serial_initialize
);
63 serial_initfunc(leon3_serial_initialize
);
64 serial_initfunc(marvell_serial_initialize
);
65 serial_initfunc(amirix_serial_initialize
);
66 serial_initfunc(bmw_serial_initialize
);
67 serial_initfunc(cogent_serial_initialize
);
68 serial_initfunc(cpci750_serial_initialize
);
69 serial_initfunc(evb64260_serial_initialize
);
70 serial_initfunc(ml2_serial_initialize
);
71 serial_initfunc(sconsole_serial_initialize
);
72 serial_initfunc(p3mx_serial_initialize
);
73 serial_initfunc(altera_jtag_serial_initialize
);
74 serial_initfunc(altera_serial_initialize
);
75 serial_initfunc(atmel_serial_initialize
);
76 serial_initfunc(lpc32xx_serial_initialize
);
77 serial_initfunc(mcf_serial_initialize
);
78 serial_initfunc(ns9750_serial_initialize
);
79 serial_initfunc(oc_serial_initialize
);
80 serial_initfunc(s3c4510b_serial_initialize
);
81 serial_initfunc(s3c64xx_serial_initialize
);
82 serial_initfunc(sandbox_serial_initialize
);
83 serial_initfunc(clps7111_serial_initialize
);
84 serial_initfunc(imx_serial_initialize
);
85 serial_initfunc(ixp_serial_initialize
);
86 serial_initfunc(ks8695_serial_initialize
);
87 serial_initfunc(lh7a40x_serial_initialize
);
88 serial_initfunc(lpc2292_serial_initialize
);
89 serial_initfunc(max3100_serial_initialize
);
90 serial_initfunc(mxc_serial_initialize
);
91 serial_initfunc(netarm_serial_initialize
);
92 serial_initfunc(pl01x_serial_initialize
);
93 serial_initfunc(s3c44b0_serial_initialize
);
94 serial_initfunc(sa1100_serial_initialize
);
95 serial_initfunc(sh_serial_initialize
);
97 void serial_register(struct serial_device
*dev
)
99 #ifdef CONFIG_NEEDS_MANUAL_RELOC
101 dev
->start
+= gd
->reloc_off
;
103 dev
->stop
+= gd
->reloc_off
;
105 dev
->setbrg
+= gd
->reloc_off
;
107 dev
->getc
+= gd
->reloc_off
;
109 dev
->tstc
+= gd
->reloc_off
;
111 dev
->putc
+= gd
->reloc_off
;
113 dev
->puts
+= gd
->reloc_off
;
116 dev
->next
= serial_devices
;
117 serial_devices
= dev
;
120 void serial_initialize(void)
122 mpc8xx_serial_initialize();
123 ns16550_serial_initialize();
124 pxa_serial_initialize();
125 s3c24xx_serial_initialize();
126 s5p_serial_initialize();
127 mpc512x_serial_initialize();
128 bfin_serial_initialize();
129 bfin_jtag_initialize();
130 uartlite_serial_initialize();
131 zynq_serial_initalize();
132 au1x00_serial_initialize();
133 asc_serial_initialize();
134 jz_serial_initialize();
135 mpc5xx_serial_initialize();
136 mpc8220_serial_initialize();
137 mpc8260_scc_serial_initialize();
138 mpc8260_smc_serial_initialize();
139 mpc85xx_serial_initialize();
140 iop480_serial_initialize();
141 leon2_serial_initialize();
142 leon3_serial_initialize();
143 marvell_serial_initialize();
144 amirix_serial_initialize();
145 bmw_serial_initialize();
146 cogent_serial_initialize();
147 cpci750_serial_initialize();
148 evb64260_serial_initialize();
149 ml2_serial_initialize();
150 sconsole_serial_initialize();
151 p3mx_serial_initialize();
152 altera_jtag_serial_initialize();
153 altera_serial_initialize();
154 atmel_serial_initialize();
155 lpc32xx_serial_initialize();
156 mcf_serial_initialize();
157 ns9750_serial_initialize();
158 oc_serial_initialize();
159 s3c4510b_serial_initialize();
160 s3c64xx_serial_initialize();
161 sandbox_serial_initialize();
162 clps7111_serial_initialize();
163 imx_serial_initialize();
164 ixp_serial_initialize();
165 ks8695_serial_initialize();
166 lh7a40x_serial_initialize();
167 lpc2292_serial_initialize();
168 max3100_serial_initialize();
169 mxc_serial_initialize();
170 netarm_serial_initialize();
171 pl01x_serial_initialize();
172 s3c44b0_serial_initialize();
173 sa1100_serial_initialize();
174 sh_serial_initialize();
176 serial_assign(default_serial_console()->name
);
179 void serial_stdio_init(void)
181 struct stdio_dev dev
;
182 struct serial_device
*s
= serial_devices
;
185 memset(&dev
, 0, sizeof(dev
));
187 strcpy(dev
.name
, s
->name
);
188 dev
.flags
= DEV_FLAGS_OUTPUT
| DEV_FLAGS_INPUT
;
190 dev
.start
= s
->start
;
197 stdio_register(&dev
);
203 int serial_assign(const char *name
)
205 struct serial_device
*s
;
207 for (s
= serial_devices
; s
; s
= s
->next
) {
208 if (strcmp(s
->name
, name
) == 0) {
217 void serial_reinit_all(void)
219 struct serial_device
*s
;
221 for (s
= serial_devices
; s
; s
= s
->next
)
225 static struct serial_device
*get_current(void)
227 struct serial_device
*dev
;
229 if (!(gd
->flags
& GD_FLG_RELOC
) || !serial_current
) {
230 dev
= default_serial_console();
232 /* We must have a console device */
234 #ifdef CONFIG_SPL_BUILD
235 puts("Cannot find console\n");
238 panic("Cannot find console\n");
242 dev
= serial_current
;
246 int serial_init(void)
248 return get_current()->start();
251 void serial_setbrg(void)
253 get_current()->setbrg();
256 int serial_getc(void)
258 return get_current()->getc();
261 int serial_tstc(void)
263 return get_current()->tstc();
266 void serial_putc(const char c
)
268 get_current()->putc(c
);
271 void serial_puts(const char *s
)
273 get_current()->puts(s
);
276 #if CONFIG_POST & CONFIG_SYS_POST_UART
277 static const int bauds
[] = CONFIG_SYS_BAUDRATE_TABLE
;
279 /* Mark weak until post/cpu/.../uart.c migrate over */
281 int uart_post_test(int flags
)
284 int ret
, saved_baud
, b
;
285 struct serial_device
*saved_dev
, *s
;
288 /* Save current serial state */
290 saved_dev
= serial_current
;
291 saved_baud
= bd
->bi_baudrate
;
293 for (s
= serial_devices
; s
; s
= s
->next
) {
294 /* If this driver doesn't support loop back, skip it */
298 /* Test the next device */
305 /* Consume anything that happens to be queued */
306 while (serial_tstc())
309 /* Enable loop back */
312 /* Test every available baud rate */
313 for (b
= 0; b
< ARRAY_SIZE(bauds
); ++b
) {
314 bd
->bi_baudrate
= bauds
[b
];
318 * Stick to printable chars to avoid issues:
319 * - terminal corruption
320 * - serial program reacting to sequences and sending
321 * back random extra data
322 * - most serial drivers add in extra chars (like \r\n)
324 for (c
= 0x20; c
< 0x7f; ++c
) {
328 /* Make sure it's the same one */
329 ret
= (c
!= serial_getc());
335 /* Clean up the output in case it was sent */
337 ret
= ('\b' != serial_getc());
345 /* Disable loop back */
348 /* XXX: There is no serial_stop() !? */
354 /* Restore previous serial state */
355 serial_current
= saved_dev
;
356 bd
->bi_baudrate
= saved_baud
;