Add qemu 2.4.0

[kvmfornfv.git] / qemu / roms / u-boot / board / evb64260 / serial.c

diff --git a/qemu/roms/u-boot/board/evb64260/serial.c b/qemu/roms/u-boot/board/evb64260/serial.c
new file mode 100644 (file)
index 0000000..83a4217
--- /dev/null
+++ b/qemu/roms/u-boot/board/evb64260/serial.c
@@ -0,0 +1,174 @@
+/*
+ * (C) Copyright 2001
+ * Josh Huber <huber@mclx.com>, Mission Critical Linux, Inc.
+ *
+ * SPDX-License-Identifier:    GPL-2.0+
+ */
+
+/*
+ * serial.c - serial support for the gal ev board
+ */
+
+/* supports both the 16650 duart and the MPSC */
+
+#include <common.h>
+#include <command.h>
+#include <galileo/memory.h>
+#include <serial.h>
+#include <linux/compiler.h>
+
+#if (defined CONFIG_SYS_INIT_CHAN1) || (defined CONFIG_SYS_INIT_CHAN2)
+#include <ns16550.h>
+#endif
+
+#include "mpsc.h"
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#if (defined CONFIG_SYS_INIT_CHAN1) || (defined CONFIG_SYS_INIT_CHAN2)
+const NS16550_t COM_PORTS[] = { (NS16550_t) CONFIG_SYS_NS16550_COM1,
+                               (NS16550_t) CONFIG_SYS_NS16550_COM2 };
+#endif
+
+#ifdef CONFIG_MPSC
+
+static int evb64260_serial_init(void)
+{
+#if (defined CONFIG_SYS_INIT_CHAN1) || (defined CONFIG_SYS_INIT_CHAN2)
+       int clock_divisor = CONFIG_SYS_NS16550_CLK / 16 / gd->baudrate;
+#endif
+
+       mpsc_init(gd->baudrate);
+
+       /* init the DUART chans so that KGDB in the kernel can use them */
+#ifdef CONFIG_SYS_INIT_CHAN1
+       NS16550_reinit(COM_PORTS[0], clock_divisor);
+#endif
+#ifdef CONFIG_SYS_INIT_CHAN2
+       NS16550_reinit(COM_PORTS[1], clock_divisor);
+#endif
+       return (0);
+}
+
+static void evb64260_serial_putc(const char c)
+{
+       if (c == '\n')
+               mpsc_putchar('\r');
+
+       mpsc_putchar(c);
+}
+
+static int evb64260_serial_getc(void)
+{
+       return mpsc_getchar();
+}
+
+static int evb64260_serial_tstc(void)
+{
+       return mpsc_test_char();
+}
+
+static void evb64260_serial_setbrg(void)
+{
+       galbrg_set_baudrate(CONFIG_MPSC_PORT, gd->baudrate);
+}
+
+#else /* ! CONFIG_MPSC */
+
+static int evb64260_serial_init(void)
+{
+       int clock_divisor = CONFIG_SYS_NS16550_CLK / 16 / gd->baudrate;
+
+#ifdef CONFIG_SYS_INIT_CHAN1
+       (void)NS16550_init(COM_PORTS[0], clock_divisor);
+#endif
+#ifdef CONFIG_SYS_INIT_CHAN2
+       (void)NS16550_init(COM_PORTS[1], clock_divisor);
+#endif
+
+       return (0);
+}
+
+static void evb64260_serial_putc(const char c)
+{
+       if (c == '\n')
+               NS16550_putc(COM_PORTS[CONFIG_SYS_DUART_CHAN], '\r');
+
+       NS16550_putc(COM_PORTS[CONFIG_SYS_DUART_CHAN], c);
+}
+
+static int evb64260_serial_getc(void)
+{
+       return NS16550_getc(COM_PORTS[CONFIG_SYS_DUART_CHAN]);
+}
+
+static int evb64260_serial_tstc(void)
+{
+       return NS16550_tstc(COM_PORTS[CONFIG_SYS_DUART_CHAN]);
+}
+
+static void evb64260_serial_setbrg(void)
+{
+       int clock_divisor = CONFIG_SYS_NS16550_CLK / 16 / gd->baudrate;
+
+#ifdef CONFIG_SYS_INIT_CHAN1
+       NS16550_reinit(COM_PORTS[0], clock_divisor);
+#endif
+#ifdef CONFIG_SYS_INIT_CHAN2
+       NS16550_reinit(COM_PORTS[1], clock_divisor);
+#endif
+}
+
+#endif /* CONFIG_MPSC */
+
+static struct serial_device evb64260_serial_drv = {
+       .name   = "evb64260_serial",
+       .start  = evb64260_serial_init,
+       .stop   = NULL,
+       .setbrg = evb64260_serial_setbrg,
+       .putc   = evb64260_serial_putc,
+       .puts   = default_serial_puts,
+       .getc   = evb64260_serial_getc,
+       .tstc   = evb64260_serial_tstc,
+};
+
+void evb64260_serial_initialize(void)
+{
+       serial_register(&evb64260_serial_drv);
+}
+
+__weak struct serial_device *default_serial_console(void)
+{
+       return &evb64260_serial_drv;
+}
+
+#if defined(CONFIG_CMD_KGDB)
+void
+kgdb_serial_init(void)
+{
+}
+
+void
+putDebugChar (int c)
+{
+       serial_putc (c);
+}
+
+void
+putDebugStr (const char *str)
+{
+       serial_puts (str);
+}
+
+int
+getDebugChar (void)
+{
+       return serial_getc();
+}
+
+void
+kgdb_interruptible (int yes)
+{
+       return;
+}
+#endif