pxa: move serial driver to drivers/serial
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index 14c818d..4a35703 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -44,6 +44,7 @@
COBJS-$(CONFIG_NETARM_SERIAL) += serial_netarm.o
COBJS-$(CONFIG_PL010_SERIAL) += serial_pl01x.o
COBJS-$(CONFIG_PL011_SERIAL) += serial_pl01x.o
+COBJS-$(CONFIG_PXA_SERIAL) += serial_pxa.o
COBJS-$(CONFIG_SA1100_SERIAL) += serial_sa1100.o
COBJS-$(CONFIG_S3C24X0_SERIAL) += serial_s3c24x0.o
COBJS-$(CONFIG_S3C44B0_SERIAL) += serial_s3c44b0.o
diff --git a/drivers/serial/serial_pxa.c b/drivers/serial/serial_pxa.c
new file mode 100644
index 0000000..9ba457e
--- /dev/null
+++ b/drivers/serial/serial_pxa.c
@@ -0,0 +1,385 @@
+/*
+ * (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)
+ *
+ * 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
+ *
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <serial.h>
+#include <asm/arch/pxa-regs.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+#define FFUART_INDEX 0
+#define BTUART_INDEX 1
+#define STUART_INDEX 2
+
+#ifndef CONFIG_SERIAL_MULTI
+#if defined (CONFIG_FFUART)
+#define UART_INDEX FFUART_INDEX
+#elif defined (CONFIG_BTUART)
+#define UART_INDEX BTUART_INDEX
+#elif defined (CONFIG_STUART)
+#define UART_INDEX STUART_INDEX
+#else
+#error "Bad: you didn't configure serial ..."
+#endif
+#endif
+
+void pxa_setbrg_dev (unsigned int uart_index)
+{
+ unsigned int quot = 0;
+
+ if (gd->baudrate == 1200)
+ quot = 768;
+ else if (gd->baudrate == 9600)
+ quot = 96;
+ else if (gd->baudrate == 19200)
+ quot = 48;
+ else if (gd->baudrate == 38400)
+ quot = 24;
+ else if (gd->baudrate == 57600)
+ quot = 16;
+ else if (gd->baudrate == 115200)
+ quot = 8;
+ else
+ hang ();
+
+ switch (uart_index) {
+ case FFUART_INDEX:
+#ifdef CONFIG_CPU_MONAHANS
+ CKENA |= CKENA_22_FFUART;
+#else
+ CKEN |= CKEN6_FFUART;
+#endif /* CONFIG_CPU_MONAHANS */
+
+ FFIER = 0; /* Disable for now */
+ FFFCR = 0; /* No fifos enabled */
+
+ /* set baud rate */
+ FFLCR = LCR_WLS0 | LCR_WLS1 | LCR_DLAB;
+ FFDLL = quot & 0xff;
+ FFDLH = quot >> 8;
+ FFLCR = LCR_WLS0 | LCR_WLS1;
+
+ FFIER = IER_UUE; /* Enable FFUART */
+ break;
+
+ case BTUART_INDEX:
+#ifdef CONFIG_CPU_MONAHANS
+ CKENA |= CKENA_21_BTUART;
+#else
+ CKEN |= CKEN7_BTUART;
+#endif /* CONFIG_CPU_MONAHANS */
+
+ BTIER = 0;
+ BTFCR = 0;
+
+ /* set baud rate */
+ BTLCR = LCR_DLAB;
+ BTDLL = quot & 0xff;
+ BTDLH = quot >> 8;
+ BTLCR = LCR_WLS0 | LCR_WLS1;
+
+ BTIER = IER_UUE; /* Enable BFUART */
+
+ break;
+
+ case STUART_INDEX:
+#ifdef CONFIG_CPU_MONAHANS
+ CKENA |= CKENA_23_STUART;
+#else
+ CKEN |= CKEN5_STUART;
+#endif /* CONFIG_CPU_MONAHANS */
+
+ STIER = 0;
+ STFCR = 0;
+
+ /* set baud rate */
+ STLCR = LCR_DLAB;
+ STDLL = quot & 0xff;
+ STDLH = quot >> 8;
+ STLCR = LCR_WLS0 | LCR_WLS1;
+
+ STIER = IER_UUE; /* Enable STUART */
+ break;
+
+ default:
+ hang();
+ }
+}
+
+
+/*
+ * Initialise the serial port with the given baudrate. The settings
+ * are always 8 data bits, no parity, 1 stop bit, no start bits.
+ *
+ */
+int pxa_init_dev (unsigned int uart_index)
+{
+ pxa_setbrg_dev (uart_index);
+
+ return (0);
+}
+
+
+/*
+ * Output a single byte to the serial port.
+ */
+void pxa_putc_dev (unsigned int uart_index,const char c)
+{
+ switch (uart_index) {
+ case FFUART_INDEX:
+ /* wait for room in the tx FIFO on FFUART */
+ while ((FFLSR & LSR_TEMT) == 0)
+ WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
+ FFTHR = c;
+ break;
+
+ case BTUART_INDEX:
+ while ((BTLSR & LSR_TEMT ) == 0 )
+ WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
+ BTTHR = c;
+ break;
+
+ case STUART_INDEX:
+ while ((STLSR & LSR_TEMT ) == 0 )
+ WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
+ STTHR = c;
+ break;
+ }
+
+ /* If \n, also do \r */
+ if (c == '\n')
+ pxa_putc_dev (uart_index,'\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.
+ */
+int pxa_tstc_dev (unsigned int uart_index)
+{
+ switch (uart_index) {
+ case FFUART_INDEX:
+ return FFLSR & LSR_DR;
+ case BTUART_INDEX:
+ return BTLSR & LSR_DR;
+ case STUART_INDEX:
+ return STLSR & LSR_DR;
+ }
+ return -1;
+}
+
+/*
+ * 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.
+ */
+int pxa_getc_dev (unsigned int uart_index)
+{
+ switch (uart_index) {
+ case FFUART_INDEX:
+ while (!(FFLSR & LSR_DR))
+ WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
+ return (char) FFRBR & 0xff;
+
+ case BTUART_INDEX:
+ while (!(BTLSR & LSR_DR))
+ WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
+ return (char) BTRBR & 0xff;
+ case STUART_INDEX:
+ while (!(STLSR & LSR_DR))
+ WATCHDOG_RESET (); /* Reset HW Watchdog, if needed */
+ return (char) STRBR & 0xff;
+ }
+ return -1;
+}
+
+void
+pxa_puts_dev (unsigned int uart_index,const char *s)
+{
+ while (*s) {
+ pxa_putc_dev (uart_index,*s++);
+ }
+}
+
+#if defined (CONFIG_FFUART)
+static int ffuart_init(void)
+{
+ return pxa_init_dev(FFUART_INDEX);
+}
+
+static void ffuart_setbrg(void)
+{
+ return pxa_setbrg_dev(FFUART_INDEX);
+}
+
+static void ffuart_putc(const char c)
+{
+ return pxa_putc_dev(FFUART_INDEX,c);
+}
+
+static void ffuart_puts(const char *s)
+{
+ return pxa_puts_dev(FFUART_INDEX,s);
+}
+
+static int ffuart_getc(void)
+{
+ return pxa_getc_dev(FFUART_INDEX);
+}
+
+static int ffuart_tstc(void)
+{
+ return pxa_tstc_dev(FFUART_INDEX);
+}
+
+struct serial_device serial_ffuart_device =
+{
+ "serial_ffuart",
+ "PXA",
+ ffuart_init,
+ ffuart_setbrg,
+ ffuart_getc,
+ ffuart_tstc,
+ ffuart_putc,
+ ffuart_puts,
+};
+#endif
+
+#if defined (CONFIG_BTUART)
+static int btuart_init(void)
+{
+ return pxa_init_dev(BTUART_INDEX);
+}
+
+static void btuart_setbrg(void)
+{
+ return pxa_setbrg_dev(BTUART_INDEX);
+}
+
+static void btuart_putc(const char c)
+{
+ return pxa_putc_dev(BTUART_INDEX,c);
+}
+
+static void btuart_puts(const char *s)
+{
+ return pxa_puts_dev(BTUART_INDEX,s);
+}
+
+static int btuart_getc(void)
+{
+ return pxa_getc_dev(BTUART_INDEX);
+}
+
+static int btuart_tstc(void)
+{
+ return pxa_tstc_dev(BTUART_INDEX);
+}
+
+struct serial_device serial_btuart_device =
+{
+ "serial_btuart",
+ "PXA",
+ btuart_init,
+ btuart_setbrg,
+ btuart_getc,
+ btuart_tstc,
+ btuart_putc,
+ btuart_puts,
+};
+#endif
+
+#if defined (CONFIG_STUART)
+static int stuart_init(void)
+{
+ return pxa_init_dev(STUART_INDEX);
+}
+
+static void stuart_setbrg(void)
+{
+ return pxa_setbrg_dev(STUART_INDEX);
+}
+
+static void stuart_putc(const char c)
+{
+ return pxa_putc_dev(STUART_INDEX,c);
+}
+
+static void stuart_puts(const char *s)
+{
+ return pxa_puts_dev(STUART_INDEX,s);
+}
+
+static int stuart_getc(void)
+{
+ return pxa_getc_dev(STUART_INDEX);
+}
+
+static int stuart_tstc(void)
+{
+ return pxa_tstc_dev(STUART_INDEX);
+}
+
+struct serial_device serial_stuart_device =
+{
+ "serial_stuart",
+ "PXA",
+ stuart_init,
+ stuart_setbrg,
+ stuart_getc,
+ stuart_tstc,
+ stuart_putc,
+ stuart_puts,
+};
+#endif
+
+
+#ifndef CONFIG_SERIAL_MULTI
+inline int serial_init(void) {
+ return (pxa_init_dev(UART_INDEX));
+}
+void serial_setbrg(void) {
+ pxa_setbrg_dev(UART_INDEX);
+}
+int serial_getc(void) {
+ return(pxa_getc_dev(UART_INDEX));
+}
+int serial_tstc(void) {
+ return(pxa_tstc_dev(UART_INDEX));
+}
+void serial_putc(const char c) {
+ pxa_putc_dev(UART_INDEX,c);
+}
+void serial_puts(const char *s) {
+ pxa_puts_dev(UART_INDEX,s);
+}
+#endif /* CONFIG_SERIAL_MULTI */