* (C) Copyright 2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
+#include <environment.h>
#include <serial.h>
#include <stdio_dev.h>
#include <post.h>
static struct serial_device *serial_devices;
static struct serial_device *serial_current;
+/*
+ * Table with supported baudrates (defined in config_xyz.h)
+ */
+static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE;
/**
* serial_null() - Void registration routine of a serial driver
{
}
+/**
+ * on_baudrate() - Update the actual baudrate when the env var changes
+ *
+ * This will check for a valid baudrate and only apply it if valid.
+ */
+static int on_baudrate(const char *name, const char *value, enum env_op op,
+ int flags)
+{
+ int i;
+ int baudrate;
+
+ switch (op) {
+ case env_op_create:
+ case env_op_overwrite:
+ /*
+ * Switch to new baudrate if new baudrate is supported
+ */
+ baudrate = simple_strtoul(value, NULL, 10);
+
+ /* Not actually changing */
+ if (gd->baudrate == baudrate)
+ return 0;
+
+ for (i = 0; i < ARRAY_SIZE(baudrate_table); ++i) {
+ if (baudrate == baudrate_table[i])
+ break;
+ }
+ if (i == ARRAY_SIZE(baudrate_table)) {
+ if ((flags & H_FORCE) == 0)
+ printf("## Baudrate %d bps not supported\n",
+ baudrate);
+ return 1;
+ }
+ if ((flags & H_INTERACTIVE) != 0) {
+ printf("## Switch baudrate to %d"
+ " bps and press ENTER ...\n", baudrate);
+ udelay(50000);
+ }
+
+ gd->baudrate = baudrate;
+
+ serial_setbrg();
+
+ udelay(50000);
+
+ if ((flags & H_INTERACTIVE) != 0)
+ while (1) {
+ if (getc() == '\r')
+ break;
+ }
+
+ return 0;
+ case env_op_delete:
+ printf("## Baudrate may not be deleted\n");
+ return 1;
+ default:
+ return 0;
+ }
+}
+U_BOOT_ENV_CALLBACK(baudrate, on_baudrate);
+
/**
* serial_initfunc() - Forward declare of driver registration routine
* @name: Name of the real driver registration routine.
serial_initfunc(pxa_serial_initialize);
serial_initfunc(s3c24xx_serial_initialize);
serial_initfunc(s5p_serial_initialize);
-serial_initfunc(zynq_serial_initalize);
+serial_initfunc(zynq_serial_initialize);
serial_initfunc(bfin_serial_initialize);
serial_initfunc(bfin_jtag_initialize);
serial_initfunc(mpc512x_serial_initialize);
serial_initfunc(asc_serial_initialize);
serial_initfunc(jz_serial_initialize);
serial_initfunc(mpc5xx_serial_initialize);
-serial_initfunc(mpc8220_serial_initialize);
serial_initfunc(mpc8260_scc_serial_initialize);
serial_initfunc(mpc8260_smc_serial_initialize);
serial_initfunc(mpc85xx_serial_initialize);
serial_initfunc(atmel_serial_initialize);
serial_initfunc(lpc32xx_serial_initialize);
serial_initfunc(mcf_serial_initialize);
-serial_initfunc(ns9750_serial_initialize);
serial_initfunc(oc_serial_initialize);
-serial_initfunc(s3c4510b_serial_initialize);
-serial_initfunc(s3c64xx_serial_initialize);
serial_initfunc(sandbox_serial_initialize);
serial_initfunc(clps7111_serial_initialize);
serial_initfunc(imx_serial_initialize);
-serial_initfunc(ixp_serial_initialize);
serial_initfunc(ks8695_serial_initialize);
serial_initfunc(lh7a40x_serial_initialize);
-serial_initfunc(lpc2292_serial_initialize);
serial_initfunc(max3100_serial_initialize);
serial_initfunc(mxc_serial_initialize);
-serial_initfunc(netarm_serial_initialize);
serial_initfunc(pl01x_serial_initialize);
-serial_initfunc(s3c44b0_serial_initialize);
serial_initfunc(sa1100_serial_initialize);
serial_initfunc(sh_serial_initialize);
+serial_initfunc(arm_dcc_initialize);
+serial_initfunc(mxs_auart_initialize);
+serial_initfunc(arc_serial_initialize);
/**
* serial_register() - Register serial driver with serial driver core
bfin_serial_initialize();
bfin_jtag_initialize();
uartlite_serial_initialize();
- zynq_serial_initalize();
+ zynq_serial_initialize();
au1x00_serial_initialize();
asc_serial_initialize();
jz_serial_initialize();
mpc5xx_serial_initialize();
- mpc8220_serial_initialize();
mpc8260_scc_serial_initialize();
mpc8260_smc_serial_initialize();
mpc85xx_serial_initialize();
atmel_serial_initialize();
lpc32xx_serial_initialize();
mcf_serial_initialize();
- ns9750_serial_initialize();
oc_serial_initialize();
- s3c4510b_serial_initialize();
- s3c64xx_serial_initialize();
sandbox_serial_initialize();
clps7111_serial_initialize();
imx_serial_initialize();
- ixp_serial_initialize();
ks8695_serial_initialize();
lh7a40x_serial_initialize();
- lpc2292_serial_initialize();
max3100_serial_initialize();
mxc_serial_initialize();
- netarm_serial_initialize();
pl01x_serial_initialize();
- s3c44b0_serial_initialize();
sa1100_serial_initialize();
sh_serial_initialize();
+ arm_dcc_initialize();
+ mxs_auart_initialize();
+ arc_serial_initialize();
serial_assign(default_serial_console()->name);
}
unsigned char c;
int ret, saved_baud, b;
struct serial_device *saved_dev, *s;
- bd_t *bd = gd->bd;
/* Save current serial state */
ret = 0;
saved_dev = serial_current;
- saved_baud = bd->bi_baudrate;
+ saved_baud = gd->baudrate;
for (s = serial_devices; s; s = s->next) {
/* If this driver doesn't support loop back, skip it */
/* Test every available baud rate */
for (b = 0; b < ARRAY_SIZE(bauds); ++b) {
- bd->bi_baudrate = bauds[b];
+ gd->baudrate = bauds[b];
serial_setbrg();
/*
done:
/* Restore previous serial state */
serial_current = saved_dev;
- bd->bi_baudrate = saved_baud;
+ gd->baudrate = saved_baud;
serial_reinit_all();
serial_setbrg();
projects / karo-tx-uboot.git / blobdiff