--- /dev/null
+/*
+ * (C) Copyright 2000
+ * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#include <common.h>
+#include <linux/compiler.h>
+
+#include <ns16550.h>
+#ifdef CONFIG_NS87308
+#include <ns87308.h>
+#endif
+
+#include <serial.h>
+
+#ifndef CONFIG_NS16550_MIN_FUNCTIONS
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if !defined(CONFIG_CONS_INDEX)
+#elif (CONFIG_CONS_INDEX < 1) || (CONFIG_CONS_INDEX > 6)
+#error "Invalid console index value."
+#endif
+
+#if CONFIG_CONS_INDEX == 1 && !defined(CONFIG_SYS_NS16550_COM1)
+#error "Console port 1 defined but not configured."
+#elif CONFIG_CONS_INDEX == 2 && !defined(CONFIG_SYS_NS16550_COM2)
+#error "Console port 2 defined but not configured."
+#elif CONFIG_CONS_INDEX == 3 && !defined(CONFIG_SYS_NS16550_COM3)
+#error "Console port 3 defined but not configured."
+#elif CONFIG_CONS_INDEX == 4 && !defined(CONFIG_SYS_NS16550_COM4)
+#error "Console port 4 defined but not configured."
+#elif CONFIG_CONS_INDEX == 5 && !defined(CONFIG_SYS_NS16550_COM5)
+#error "Console port 5 defined but not configured."
+#elif CONFIG_CONS_INDEX == 6 && !defined(CONFIG_SYS_NS16550_COM6)
+#error "Console port 6 defined but not configured."
+#endif
+
+/* Note: The port number specified in the functions is 1 based.
+ * the array is 0 based.
+ */
+static NS16550_t serial_ports[6] = {
+#ifdef CONFIG_SYS_NS16550_COM1
+ (NS16550_t)CONFIG_SYS_NS16550_COM1,
+#else
+ NULL,
+#endif
+#ifdef CONFIG_SYS_NS16550_COM2
+ (NS16550_t)CONFIG_SYS_NS16550_COM2,
+#else
+ NULL,
+#endif
+#ifdef CONFIG_SYS_NS16550_COM3
+ (NS16550_t)CONFIG_SYS_NS16550_COM3,
+#else
+ NULL,
+#endif
+#ifdef CONFIG_SYS_NS16550_COM4
+ (NS16550_t)CONFIG_SYS_NS16550_COM4,
+#else
+ NULL,
+#endif
+#ifdef CONFIG_SYS_NS16550_COM5
+ (NS16550_t)CONFIG_SYS_NS16550_COM5,
+#else
+ NULL,
+#endif
+#ifdef CONFIG_SYS_NS16550_COM6
+ (NS16550_t)CONFIG_SYS_NS16550_COM6
+#else
+ NULL
+#endif
+};
+
+#define PORT serial_ports[port-1]
+
+/* Multi serial device functions */
+#define DECLARE_ESERIAL_FUNCTIONS(port) \
+ static 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 ; \
+ } \
+ static void eserial##port##_setbrg(void) \
+ { \
+ serial_setbrg_dev(port); \
+ } \
+ static int eserial##port##_getc(void) \
+ { \
+ return serial_getc_dev(port); \
+ } \
+ static int eserial##port##_tstc(void) \
+ { \
+ return serial_tstc_dev(port); \
+ } \
+ static void eserial##port##_putc(const char c) \
+ { \
+ serial_putc_dev(port, c); \
+ } \
+ static void eserial##port##_puts(const char *s) \
+ { \
+ serial_puts_dev(port, s); \
+ }
+
+/* Serial device descriptor */
+#define INIT_ESERIAL_STRUCTURE(port, __name) { \
+ .name = __name, \
+ .start = eserial##port##_init, \
+ .stop = NULL, \
+ .setbrg = eserial##port##_setbrg, \
+ .getc = eserial##port##_getc, \
+ .tstc = eserial##port##_tstc, \
+ .putc = eserial##port##_putc, \
+ .puts = eserial##port##_puts, \
+}
+
+static int calc_divisor (NS16550_t port)
+{
+#ifdef CONFIG_OMAP1510
+ /* If can't cleanly clock 115200 set div to 1 */
+ if ((CONFIG_SYS_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 ((CONFIG_SYS_NS16550_CLK == 48000000) && (gd->baudrate == 115200)) {
+ return (26); /* return 26 for base divisor */
+ }
+#endif
+
+#define MODE_X_DIV 16
+ /* Compute divisor value. Normally, we should simply return:
+ * CONFIG_SYS_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 (CONFIG_SYS_NS16550_CLK + (gd->baudrate * (MODE_X_DIV / 2))) /
+ (MODE_X_DIV * gd->baudrate);
+}
+
+void
+_serial_putc(const char c,const int port)
+{
+ if (c == '\n')
+ NS16550_putc(PORT, '\r');
+
+ NS16550_putc(PORT, c);
+}
+
+void
+_serial_putc_raw(const char c,const int port)
+{
+ NS16550_putc(PORT, c);
+}
+
+void
+_serial_puts (const char *s,const int port)
+{
+ while (*s) {
+ _serial_putc (*s++,port);
+ }
+}
+
+
+int
+_serial_getc(const int port)
+{
+ return NS16550_getc(PORT);
+}
+
+int
+_serial_tstc(const int port)
+{
+ return NS16550_tstc(PORT);
+}
+
+void
+_serial_setbrg (const int port)
+{
+ int clock_divisor;
+
+ clock_divisor = calc_divisor(PORT);
+ NS16550_reinit(PORT, clock_divisor);
+}
+
+static inline void
+serial_putc_dev(unsigned int dev_index,const char c)
+{
+ _serial_putc(c,dev_index);
+}
+
+static inline void
+serial_putc_raw_dev(unsigned int dev_index,const char c)
+{
+ _serial_putc_raw(c,dev_index);
+}
+
+static inline void
+serial_puts_dev(unsigned int dev_index,const char *s)
+{
+ _serial_puts(s,dev_index);
+}
+
+static inline int
+serial_getc_dev(unsigned int dev_index)
+{
+ return _serial_getc(dev_index);
+}
+
+static inline int
+serial_tstc_dev(unsigned int dev_index)
+{
+ return _serial_tstc(dev_index);
+}
+
+static inline void
+serial_setbrg_dev(unsigned int dev_index)
+{
+ _serial_setbrg(dev_index);
+}
+
+#if defined(CONFIG_SYS_NS16550_COM1)
+DECLARE_ESERIAL_FUNCTIONS(1);
+struct serial_device eserial1_device =
+ INIT_ESERIAL_STRUCTURE(1, "eserial0");
+#endif
+#if defined(CONFIG_SYS_NS16550_COM2)
+DECLARE_ESERIAL_FUNCTIONS(2);
+struct serial_device eserial2_device =
+ INIT_ESERIAL_STRUCTURE(2, "eserial1");
+#endif
+#if defined(CONFIG_SYS_NS16550_COM3)
+DECLARE_ESERIAL_FUNCTIONS(3);
+struct serial_device eserial3_device =
+ INIT_ESERIAL_STRUCTURE(3, "eserial2");
+#endif
+#if defined(CONFIG_SYS_NS16550_COM4)
+DECLARE_ESERIAL_FUNCTIONS(4);
+struct serial_device eserial4_device =
+ INIT_ESERIAL_STRUCTURE(4, "eserial3");
+#endif
+#if defined(CONFIG_SYS_NS16550_COM5)
+DECLARE_ESERIAL_FUNCTIONS(5);
+struct serial_device eserial5_device =
+ INIT_ESERIAL_STRUCTURE(5, "eserial4");
+#endif
+#if defined(CONFIG_SYS_NS16550_COM6)
+DECLARE_ESERIAL_FUNCTIONS(6);
+struct serial_device eserial6_device =
+ INIT_ESERIAL_STRUCTURE(6, "eserial5");
+#endif
+
+__weak struct serial_device *default_serial_console(void)
+{
+#if CONFIG_CONS_INDEX == 1
+ return &eserial1_device;
+#elif CONFIG_CONS_INDEX == 2
+ return &eserial2_device;
+#elif CONFIG_CONS_INDEX == 3
+ return &eserial3_device;
+#elif CONFIG_CONS_INDEX == 4
+ return &eserial4_device;
+#elif CONFIG_CONS_INDEX == 5
+ return &eserial5_device;
+#elif CONFIG_CONS_INDEX == 6
+ return &eserial6_device;
+#else
+#error "Bad CONFIG_CONS_INDEX."
+#endif
+}
+
+void ns16550_serial_initialize(void)
+{
+#if defined(CONFIG_SYS_NS16550_COM1)
+ serial_register(&eserial1_device);
+#endif
+#if defined(CONFIG_SYS_NS16550_COM2)
+ serial_register(&eserial2_device);
+#endif
+#if defined(CONFIG_SYS_NS16550_COM3)
+ serial_register(&eserial3_device);
+#endif
+#if defined(CONFIG_SYS_NS16550_COM4)
+ serial_register(&eserial4_device);
+#endif
+#if defined(CONFIG_SYS_NS16550_COM5)
+ serial_register(&eserial5_device);
+#endif
+#if defined(CONFIG_SYS_NS16550_COM6)
+ serial_register(&eserial6_device);
+#endif
+}
+
+#endif /* !CONFIG_NS16550_MIN_FUNCTIONS */
Code Review / kvmfornfv.git / blobdiff