/*
- * (C) Copyright 2000
- * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
+ * (C) Copyright 2004
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*/
#include <common.h>
-
-#ifdef CFG_NS16550_SERIAL
-
-#include <ns16550.h>
-#ifdef CFG_NS87308
-#include <ns87308.h>
-#endif
-
-#if defined (CONFIG_SERIAL_MULTI)
#include <serial.h>
-#endif
+#include <stdio_dev.h>
+#include <post.h>
+#include <linux/compiler.h>
DECLARE_GLOBAL_DATA_PTR;
-#if !defined(CONFIG_CONS_INDEX)
-#if defined (CONFIG_SERIAL_MULTI)
-/* with CONFIG_SERIAL_MULTI we might have no console
- * on these devices
- */
-#else
-#error "No console index specified."
-#endif /* CONFIG_SERIAL_MULTI */
-#elif (CONFIG_CONS_INDEX < 1) || (CONFIG_CONS_INDEX > 4)
-#error "Invalid console index value."
-#endif
-
-#if CONFIG_CONS_INDEX == 1 && !defined(CFG_NS16550_COM1)
-#error "Console port 1 defined but not configured."
-#elif CONFIG_CONS_INDEX == 2 && !defined(CFG_NS16550_COM2)
-#error "Console port 2 defined but not configured."
-#elif CONFIG_CONS_INDEX == 3 && !defined(CFG_NS16550_COM3)
-#error "Console port 3 defined but not configured."
-#elif CONFIG_CONS_INDEX == 4 && !defined(CFG_NS16550_COM4)
-#error "Console port 4 defined but not configured."
-#endif
+static struct serial_device *serial_devices;
+static struct serial_device *serial_current;
-/* Note: The port number specified in the functions is 1 based.
- * the array is 0 based.
- */
-static NS16550_t serial_ports[4] = {
-#ifdef CFG_NS16550_COM1
- (NS16550_t)CFG_NS16550_COM1,
-#else
- NULL,
-#endif
-#ifdef CFG_NS16550_COM2
- (NS16550_t)CFG_NS16550_COM2,
-#else
- NULL,
-#endif
-#ifdef CFG_NS16550_COM3
- (NS16550_t)CFG_NS16550_COM3,
-#else
- NULL,
-#endif
-#ifdef CFG_NS16550_COM4
- (NS16550_t)CFG_NS16550_COM4
-#else
- NULL
-#endif
-};
-
-#define PORT serial_ports[port-1]
-#if defined(CONFIG_CONS_INDEX)
-#define CONSOLE (serial_ports[CONFIG_CONS_INDEX-1])
-#endif
+static void serial_null(void)
+{
+}
-#if defined(CONFIG_SERIAL_MULTI)
-
-/* Multi serial device functions */
-#define DECLARE_ESERIAL_FUNCTIONS(port) \
- int eserial##port##_init (void) {\
- int clock_divisor; \
- clock_divisor = calc_divisor(serial_ports[port-1]); \
- NS16550_init(serial_ports[port-1], clock_divisor); \
- return(0);}\
- void eserial##port##_setbrg (void) {\
- serial_setbrg_dev(port);}\
- int eserial##port##_getc (void) {\
- return serial_getc_dev(port);}\
- int eserial##port##_tstc (void) {\
- return serial_tstc_dev(port);}\
- void eserial##port##_putc (const char c) {\
- serial_putc_dev(port, c);}\
- void eserial##port##_puts (const char *s) {\
- serial_puts_dev(port, s);}
-
-/* Serial device descriptor */
-#define INIT_ESERIAL_STRUCTURE(port,name,bus) {\
- name,\
- bus,\
- eserial##port##_init,\
- eserial##port##_setbrg,\
- eserial##port##_getc,\
- eserial##port##_tstc,\
- eserial##port##_putc,\
- eserial##port##_puts, }
-
-#endif /* CONFIG_SERIAL_MULTI */
-
-static int calc_divisor (NS16550_t port)
+#define serial_initfunc(name) \
+ void name(void) \
+ __attribute__((weak, alias("serial_null")));
+
+serial_initfunc(mpc8xx_serial_initialize);
+serial_initfunc(ns16550_serial_initialize);
+serial_initfunc(pxa_serial_initialize);
+serial_initfunc(s3c24xx_serial_initialize);
+serial_initfunc(s5p_serial_initialize);
+serial_initfunc(zynq_serial_initalize);
+serial_initfunc(bfin_serial_initialize);
+serial_initfunc(bfin_jtag_initialize);
+serial_initfunc(mpc512x_serial_initialize);
+serial_initfunc(uartlite_serial_initialize);
+serial_initfunc(au1x00_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(iop480_serial_initialize);
+serial_initfunc(leon2_serial_initialize);
+serial_initfunc(leon3_serial_initialize);
+serial_initfunc(marvell_serial_initialize);
+serial_initfunc(amirix_serial_initialize);
+serial_initfunc(bmw_serial_initialize);
+serial_initfunc(cogent_serial_initialize);
+serial_initfunc(cpci750_serial_initialize);
+serial_initfunc(evb64260_serial_initialize);
+serial_initfunc(ml2_serial_initialize);
+serial_initfunc(sconsole_serial_initialize);
+serial_initfunc(p3mx_serial_initialize);
+serial_initfunc(altera_jtag_serial_initialize);
+serial_initfunc(altera_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);
+
+void serial_register(struct serial_device *dev)
{
-#ifdef CONFIG_OMAP1510
- /* If can't cleanly clock 115200 set div to 1 */
- if ((CFG_NS16550_CLK == 12000000) && (gd->baudrate == 115200)) {
- port->osc_12m_sel = OSC_12M_SEL; /* enable 6.5 * divisor */
- return (1); /* return 1 for base divisor */
- }
- port->osc_12m_sel = 0; /* clear if previsouly set */
-#endif
-#ifdef CONFIG_OMAP1610
- /* If can't cleanly clock 115200 set div to 1 */
- if ((CFG_NS16550_CLK == 48000000) && (gd->baudrate == 115200)) {
- return (26); /* return 26 for base divisor */
- }
+#ifdef CONFIG_NEEDS_MANUAL_RELOC
+ dev->start += gd->reloc_off;
+ dev->setbrg += gd->reloc_off;
+ dev->getc += gd->reloc_off;
+ dev->tstc += gd->reloc_off;
+ dev->putc += gd->reloc_off;
+ dev->puts += gd->reloc_off;
#endif
-#ifdef CONFIG_APTIX
-#define MODE_X_DIV 13
-#else
-#define MODE_X_DIV 16
-#endif
+ dev->next = serial_devices;
+ serial_devices = dev;
+}
- /* Compute divisor value. Normally, we should simply return:
- * CFG_NS16550_CLK) / MODE_X_DIV / gd->baudrate
- * but we need to round that value by adding 0.5.
- * Rounding is especially important at high baud rates.
- */
- return (CFG_NS16550_CLK + (gd->baudrate * (MODE_X_DIV / 2))) /
- (MODE_X_DIV * gd->baudrate);
+void serial_initialize(void)
+{
+ mpc8xx_serial_initialize();
+ ns16550_serial_initialize();
+ pxa_serial_initialize();
+ s3c24xx_serial_initialize();
+ s5p_serial_initialize();
+ mpc512x_serial_initialize();
+ bfin_serial_initialize();
+ bfin_jtag_initialize();
+ uartlite_serial_initialize();
+ zynq_serial_initalize();
+ 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();
+ iop480_serial_initialize();
+ leon2_serial_initialize();
+ leon3_serial_initialize();
+ marvell_serial_initialize();
+ amirix_serial_initialize();
+ bmw_serial_initialize();
+ cogent_serial_initialize();
+ cpci750_serial_initialize();
+ evb64260_serial_initialize();
+ ml2_serial_initialize();
+ sconsole_serial_initialize();
+ p3mx_serial_initialize();
+ altera_jtag_serial_initialize();
+ altera_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();
+
+ serial_assign(default_serial_console()->name);
}
-#if !defined(CONFIG_SERIAL_MULTI)
-int serial_init (void)
+void serial_stdio_init(void)
{
- int clock_divisor;
+ struct stdio_dev dev;
+ struct serial_device *s = serial_devices;
-#ifdef CFG_NS87308
- initialise_ns87308();
-#endif
+ while (s) {
+ memset(&dev, 0, sizeof(dev));
-#ifdef CFG_NS16550_COM1
- clock_divisor = calc_divisor(serial_ports[0]);
- NS16550_init(serial_ports[0], clock_divisor);
-#endif
-#ifdef CFG_NS16550_COM2
- clock_divisor = calc_divisor(serial_ports[1]);
- NS16550_init(serial_ports[1], clock_divisor);
-#endif
-#ifdef CFG_NS16550_COM3
- clock_divisor = calc_divisor(serial_ports[2]);
- NS16550_init(serial_ports[2], clock_divisor);
-#endif
-#ifdef CFG_NS16550_COM4
- clock_divisor = calc_divisor(serial_ports[3]);
- NS16550_init(serial_ports[3], clock_divisor);
-#endif
+ strcpy(dev.name, s->name);
+ dev.flags = DEV_FLAGS_OUTPUT | DEV_FLAGS_INPUT;
- return (0);
-}
-#endif
+ dev.start = s->start;
+ dev.stop = s->stop;
+ dev.putc = s->putc;
+ dev.puts = s->puts;
+ dev.getc = s->getc;
+ dev.tstc = s->tstc;
-void
-_serial_putc(const char c,const int port)
-{
- if (c == '\n')
- NS16550_putc(PORT, '\r');
+ stdio_register(&dev);
- NS16550_putc(PORT, c);
+ s = s->next;
+ }
}
-void
-_serial_putc_raw(const char c,const int port)
+int serial_assign(const char *name)
{
- NS16550_putc(PORT, c);
-}
+ struct serial_device *s;
-void
-_serial_puts (const char *s,const int port)
-{
- while (*s) {
- _serial_putc (*s++,port);
+ for (s = serial_devices; s; s = s->next) {
+ if (strcmp(s->name, name) == 0) {
+ serial_current = s;
+ return 0;
+ }
}
-}
-
-int
-_serial_getc(const int port)
-{
- return NS16550_getc(PORT);
+ return 1;
}
-int
-_serial_tstc(const int port)
+void serial_reinit_all(void)
{
- return NS16550_tstc(PORT);
+ struct serial_device *s;
+
+ for (s = serial_devices; s; s = s->next)
+ s->start();
}
-void
-_serial_setbrg (const int port)
+static struct serial_device *get_current(void)
{
- int clock_divisor;
+ struct serial_device *dev;
- clock_divisor = calc_divisor(PORT);
- NS16550_reinit(PORT, clock_divisor);
-}
+ if (!(gd->flags & GD_FLG_RELOC) || !serial_current) {
+ dev = default_serial_console();
-#if defined(CONFIG_SERIAL_MULTI)
-static inline void
-serial_putc_dev(unsigned int dev_index,const char c)
-{
- _serial_putc(c,dev_index);
-}
+ /* We must have a console device */
+ if (!dev) {
+#ifdef CONFIG_SPL_BUILD
+ puts("Cannot find console\n");
+ hang();
#else
-void
-serial_putc(const char c)
-{
- _serial_putc(c,CONFIG_CONS_INDEX);
-}
+ panic("Cannot find console\n");
#endif
-
-#if defined(CONFIG_SERIAL_MULTI)
-static inline void
-serial_putc_raw_dev(unsigned int dev_index,const char c)
-{
- _serial_putc_raw(c,dev_index);
-}
-#else
-void
-serial_putc_raw(const char c)
-{
- _serial_putc_raw(c,CONFIG_CONS_INDEX);
+ }
+ } else
+ dev = serial_current;
+ return dev;
}
-#endif
-#if defined(CONFIG_SERIAL_MULTI)
-static inline void
-serial_puts_dev(unsigned int dev_index,const char *s)
+int serial_init(void)
{
- _serial_puts(s,dev_index);
+ return get_current()->start();
}
-#else
-void
-serial_puts(const char *s)
-{
- _serial_puts(s,CONFIG_CONS_INDEX);
-}
-#endif
-#if defined(CONFIG_SERIAL_MULTI)
-static inline int
-serial_getc_dev(unsigned int dev_index)
+void serial_setbrg(void)
{
- return _serial_getc(dev_index);
+ get_current()->setbrg();
}
-#else
-int
-serial_getc(void)
+
+int serial_getc(void)
{
- return _serial_getc(CONFIG_CONS_INDEX);
+ return get_current()->getc();
}
-#endif
-#if defined(CONFIG_SERIAL_MULTI)
-static inline int
-serial_tstc_dev(unsigned int dev_index)
+int serial_tstc(void)
{
- return _serial_tstc(dev_index);
+ return get_current()->tstc();
}
-#else
-int
-serial_tstc(void)
+
+void serial_putc(const char c)
{
- return _serial_tstc(CONFIG_CONS_INDEX);
+ get_current()->putc(c);
}
-#endif
-#if defined(CONFIG_SERIAL_MULTI)
-static inline void
-serial_setbrg_dev(unsigned int dev_index)
+void serial_puts(const char *s)
{
- _serial_setbrg(dev_index);
+ get_current()->puts(s);
}
-#else
-void
-serial_setbrg(void)
+
+#if CONFIG_POST & CONFIG_SYS_POST_UART
+static const int bauds[] = CONFIG_SYS_BAUDRATE_TABLE;
+
+/* Mark weak until post/cpu/.../uart.c migrate over */
+__weak
+int uart_post_test(int flags)
{
- _serial_setbrg(CONFIG_CONS_INDEX);
-}
-#endif
+ 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;
+
+ for (s = serial_devices; s; s = s->next) {
+ /* If this driver doesn't support loop back, skip it */
+ if (!s->loop)
+ continue;
+
+ /* Test the next device */
+ serial_current = s;
+
+ ret = serial_init();
+ if (ret)
+ goto done;
+
+ /* Consume anything that happens to be queued */
+ while (serial_tstc())
+ serial_getc();
+
+ /* Enable loop back */
+ s->loop(1);
+
+ /* Test every available baud rate */
+ for (b = 0; b < ARRAY_SIZE(bauds); ++b) {
+ bd->bi_baudrate = bauds[b];
+ serial_setbrg();
+
+ /*
+ * Stick to printable chars to avoid issues:
+ * - terminal corruption
+ * - serial program reacting to sequences and sending
+ * back random extra data
+ * - most serial drivers add in extra chars (like \r\n)
+ */
+ for (c = 0x20; c < 0x7f; ++c) {
+ /* Send it out */
+ serial_putc(c);
+
+ /* Make sure it's the same one */
+ ret = (c != serial_getc());
+ if (ret) {
+ s->loop(0);
+ goto done;
+ }
+
+ /* Clean up the output in case it was sent */
+ serial_putc('\b');
+ ret = ('\b' != serial_getc());
+ if (ret) {
+ s->loop(0);
+ goto done;
+ }
+ }
+ }
+
+ /* Disable loop back */
+ s->loop(0);
+
+ /* XXX: There is no serial_stop() !? */
+ if (s->stop)
+ s->stop();
+ }
-#if defined(CONFIG_SERIAL_MULTI)
-
-DECLARE_ESERIAL_FUNCTIONS(1);
-struct serial_device eserial1_device =
- INIT_ESERIAL_STRUCTURE(1,"eserial0","EUART1");
-DECLARE_ESERIAL_FUNCTIONS(2);
-struct serial_device eserial2_device =
- INIT_ESERIAL_STRUCTURE(2,"eserial1","EUART2");
-DECLARE_ESERIAL_FUNCTIONS(3);
-struct serial_device eserial3_device =
- INIT_ESERIAL_STRUCTURE(3,"eserial2","EUART3");
-DECLARE_ESERIAL_FUNCTIONS(4);
-struct serial_device eserial4_device =
- INIT_ESERIAL_STRUCTURE(4,"eserial3","EUART4");
-#endif /* CONFIG_SERIAL_MULTI */
+ done:
+ /* Restore previous serial state */
+ serial_current = saved_dev;
+ bd->bi_baudrate = saved_baud;
+ serial_reinit_all();
+ serial_setbrg();
+ return ret;
+}
#endif
projects / karo-tx-uboot.git / blobdiff