X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Fdrivers%2Fserial%2Fserial_sa1100.c;fp=qemu%2Froms%2Fu-boot%2Fdrivers%2Fserial%2Fserial_sa1100.c;h=78f241d8508f38d80a82f1aa9f63065a449de51b;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/u-boot/drivers/serial/serial_sa1100.c b/qemu/roms/u-boot/drivers/serial/serial_sa1100.c
new file mode 100644
index 000000000..78f241d85
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/serial/serial_sa1100.c
@@ -0,0 +1,162 @@
+/*
+ * (C) Copyright 2002
+ * Wolfgang Denk, DENX Software Engineering, <wd@denx.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Marius Groeger <mgroeger@sysgo.de>
+ *
+ * (C) Copyright 2002
+ * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
+ * Alex Zuepke <azu@sysgo.de>
+ *
+ * Copyright (C) 1999 2000 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl)
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <SA-1100.h>
+#include <serial.h>
+#include <linux/compiler.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static void sa1100_serial_setbrg(void)
+{
+	unsigned int reg = 0;
+
+	if (gd->baudrate == 1200)
+		reg = 191;
+	else if (gd->baudrate == 9600)
+		reg = 23;
+	else if (gd->baudrate == 19200)
+		reg = 11;
+	else if (gd->baudrate == 38400)
+		reg = 5;
+	else if (gd->baudrate == 57600)
+		reg = 3;
+	else if (gd->baudrate == 115200)
+		reg = 1;
+	else
+		hang ();
+
+#ifdef CONFIG_SERIAL1
+	/* SA1110 uart function */
+	Ser1SDCR0 |= SDCR0_SUS;
+
+	/* Wait until port is ready ... */
+	while(Ser1UTSR1 & UTSR1_TBY) {}
+
+	/* init serial serial 1 */
+	Ser1UTCR3 = 0x00;
+	Ser1UTSR0 = 0xff;
+	Ser1UTCR0 = ( UTCR0_1StpBit | UTCR0_8BitData );
+	Ser1UTCR1 = 0;
+	Ser1UTCR2 = (u32)reg;
+	Ser1UTCR3 = ( UTCR3_RXE | UTCR3_TXE );
+#elif defined(CONFIG_SERIAL3)
+	/* Wait until port is ready ... */
+	while (Ser3UTSR1 & UTSR1_TBY) {
+	}
+
+	/* init serial serial 3 */
+	Ser3UTCR3 = 0x00;
+	Ser3UTSR0 = 0xff;
+	Ser3UTCR0 = (UTCR0_1StpBit | UTCR0_8BitData);
+	Ser3UTCR1 = 0;
+	Ser3UTCR2 = (u32) reg;
+	Ser3UTCR3 = (UTCR3_RXE | UTCR3_TXE);
+#else
+#error "Bad: you didn't configured serial ..."
+#endif
+}
+
+
+/*
+ * Initialise the serial port with the given baudrate. The settings
+ * are always 8 data bits, no parity, 1 stop bit, no start bits.
+ *
+ */
+static int sa1100_serial_init(void)
+{
+	serial_setbrg ();
+
+	return (0);
+}
+
+
+/*
+ * Output a single byte to the serial port.
+ */
+static void sa1100_serial_putc(const char c)
+{
+#ifdef CONFIG_SERIAL1
+	/* wait for room in the tx FIFO on SERIAL1 */
+	while ((Ser1UTSR0 & UTSR0_TFS) == 0);
+
+	Ser1UTDR = c;
+#elif defined(CONFIG_SERIAL3)
+	/* wait for room in the tx FIFO on SERIAL3 */
+	while ((Ser3UTSR0 & UTSR0_TFS) == 0);
+
+	Ser3UTDR = c;
+#endif
+
+	/* If \n, also do \r */
+	if (c == '\n')
+		serial_putc ('\r');
+}
+
+/*
+ * Read a single byte from the serial port. Returns 1 on success, 0
+ * otherwise. When the function is succesfull, the character read is
+ * written into its argument c.
+ */
+static int sa1100_serial_tstc(void)
+{
+#ifdef CONFIG_SERIAL1
+	return Ser1UTSR1 & UTSR1_RNE;
+#elif defined(CONFIG_SERIAL3)
+	return Ser3UTSR1 & UTSR1_RNE;
+#endif
+}
+
+/*
+ * Read a single byte from the serial port. Returns 1 on success, 0
+ * otherwise. When the function is succesfull, the character read is
+ * written into its argument c.
+ */
+static int sa1100_serial_getc(void)
+{
+#ifdef CONFIG_SERIAL1
+	while (!(Ser1UTSR1 & UTSR1_RNE));
+
+	return (char) Ser1UTDR & 0xff;
+#elif defined(CONFIG_SERIAL3)
+	while (!(Ser3UTSR1 & UTSR1_RNE));
+
+	return (char) Ser3UTDR & 0xff;
+#endif
+}
+
+static struct serial_device sa1100_serial_drv = {
+	.name	= "sa1100_serial",
+	.start	= sa1100_serial_init,
+	.stop	= NULL,
+	.setbrg	= sa1100_serial_setbrg,
+	.putc	= sa1100_serial_putc,
+	.puts	= default_serial_puts,
+	.getc	= sa1100_serial_getc,
+	.tstc	= sa1100_serial_tstc,
+};
+
+void sa1100_serial_initialize(void)
+{
+	serial_register(&sa1100_serial_drv);
+}
+
+__weak struct serial_device *default_serial_console(void)
+{
+	return &sa1100_serial_drv;
+}