Initial revision

3 files changed, 198 insertions, 0 deletions

diff --git a/board/bmw/m48t59y.h b/board/bmw/m48t59y.h
new file mode 100644
index 0000000..717300d
--- /dev/null
+++ b/board/bmw/m48t59y.h
@@ -0,0 +1,57 @@
+/*
+ * SGS M48-T59Y TOD/NVRAM Driver
+ *
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * (C) Copyright 1999, by Curt McDowell, 08-06-99, Broadcom Corp.
+ *
+ * (C) Copyright 2001, James Dougherty, 07/18/01, Broadcom Corp.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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
+ */
+
+#ifndef __M48_T59_Y_H
+#define __M48_T59_Y_H
+
+/*
+ * M48 T59Y -Timekeeping Battery backed SRAM.
+ */
+
+int m48_tod_init(void);
+
+int m48_tod_set(int year,
+		int month,
+		int day,
+		int hour,
+		int minute,
+		int second);
+
+int m48_tod_get(int *year,
+		int *month,
+		int *day,
+		int *hour,
+		int *minute,
+		int *second);
+
+int m48_tod_get_second(void);
+
+void m48_watchdog_arm(int usec);
+
+#endif /*!__M48_T59_Y_H */
diff --git a/board/bmw/ns16550.c b/board/bmw/ns16550.c
new file mode 100644
index 0000000..b6b6f4c
--- /dev/null
+++ b/board/bmw/ns16550.c
@@ -0,0 +1,60 @@
+/*
+ * COM1 NS16550 support
+ * originally from linux source (arch/ppc/boot/ns16550.c)
+ * modified to use CFG_ISA_MEM and new defines
+ */
+
+#include <config.h>
+#include "ns16550.h"
+
+typedef struct NS16550 *NS16550_t;
+
+const NS16550_t COM_PORTS[] = { (NS16550_t) ((CFG_EUMB_ADDR) + 0x4500), (NS16550_t) ((CFG_EUMB_ADDR) + 0x4600)};
+
+volatile struct NS16550 *
+NS16550_init(int chan, int baud_divisor)
+{
+ volatile struct NS16550 *com_port;
+ com_port = (struct NS16550 *) COM_PORTS[chan];
+ com_port->ier = 0x00;
+ com_port->lcr = LCR_BKSE;              /* Access baud rate */
+ com_port->dll = baud_divisor & 0xff;   /* 9600 baud */
+ com_port->dlm = (baud_divisor >> 8) & 0xff;
+ com_port->lcr = LCR_8N1;               /* 8 data, 1 stop, no parity */
+ com_port->mcr = MCR_RTS;     /* RTS/DTR */
+ com_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR;                  /* Clear & enable FIFOs */
+return (com_port);
+}
+
+void
+NS16550_reinit(volatile struct NS16550 *com_port, int baud_divisor)
+{
+ com_port->ier = 0x00;
+ com_port->lcr = LCR_BKSE;              /* Access baud rate */
+ com_port->dll = baud_divisor & 0xff;   /* 9600 baud */
+ com_port->dlm = (baud_divisor >> 8) & 0xff;
+ com_port->lcr = LCR_8N1;               /* 8 data, 1 stop, no parity */
+ com_port->mcr = MCR_RTS;     /* RTS/DTR */
+ com_port->fcr = FCR_FIFO_EN | FCR_RXSR | FCR_TXSR;                  /* Clear & enable FIFOs */
+}
+
+void NS16550_putc(volatile struct NS16550 *com_port, unsigned char c)
+{
+ while ((com_port->lsr & LSR_THRE) == 0) ;
+ com_port->thr = c;
+}
+
+unsigned char
+NS16550_getc(volatile struct NS16550 *com_port)
+{
+ while ((com_port->lsr & LSR_DR) == 0) ;
+ return (com_port->rbr);
+}
+
+int NS16550_tstc(volatile struct NS16550 *com_port)
+{
+ return ((com_port->lsr & LSR_DR) != 0);
+}
+
+
+
diff --git a/board/bmw/ns16550.h b/board/bmw/ns16550.h
new file mode 100644
index 0000000..b80ac02
--- /dev/null
+++ b/board/bmw/ns16550.h
@@ -0,0 +1,81 @@
+/*
+ * NS16550 Serial Port
+ * originally from linux source (arch/ppc/boot/ns16550.h)
+ * modified slightly to
+ * have addresses as offsets from CFG_ISA_BASE
+ * added a few more definitions
+ * added prototypes for ns16550.c
+ * reduced no of com ports to 2
+ * modifications (c) Rob Taylor, Flying Pig Systems. 2000.
+ * further modified to support the 8245 duart
+ * modifications (c) Paul Jimenez, Musenki, Inc. 2001.
+ */
+
+
+struct NS16550
+ {
+  unsigned char rbrthrdlb;  /* 0 */
+  unsigned char ierdmb;     /* 1 */
+  unsigned char iirfcrafr;  /* 2 */
+  unsigned char lcr;         /* 3 */
+  unsigned char mcr;         /* 4 */
+  unsigned char lsr;         /* 5 */
+  unsigned char msr;         /* 6 */
+  unsigned char scr;         /* 7 */
+  unsigned char reserved[2]; /* 8 & 9 */
+  unsigned char dsr;         /* 10 */
+  unsigned char dcr;         /* 11 */
+ };
+
+
+#define rbr rbrthrdlb
+#define thr rbrthrdlb
+#define dll rbrthrdlb
+#define ier ierdmb
+#define dlm ierdmb
+#define iir iirfcrafr
+#define fcr iirfcrafr
+#define afr iirfcrafr
+
+#define FCR_FIFO_EN     0x01    /*fifo enable*/
+#define FCR_RXSR        0x02    /*reciever soft reset*/
+#define FCR_TXSR        0x04    /*transmitter soft reset*/
+#define FCR_DMS		0x08    /* DMA Mode Select */
+
+#define MCR_RTS         0x02    /* Readyu to Send */
+#define MCR_LOOP	0x10	/* Local loopback mode enable */
+/* #define MCR_DTR         0x01    noton 8245 duart */
+/* #define MCR_DMA_EN      0x04    noton 8245 duart */
+/* #define MCR_TX_DFR      0x08    noton 8245 duart */
+
+#define LCR_WLS_MSK 0x03    /* character length slect mask*/
+#define LCR_WLS_5   0x00    /* 5 bit character length */
+#define LCR_WLS_6   0x01    /* 6 bit character length */
+#define LCR_WLS_7   0x02    /* 7 bit character length */
+#define LCR_WLS_8   0x03    /* 8 bit character length */
+#define LCR_STB     0x04    /* Number of stop Bits, off = 1, on = 1.5 or 2) */
+#define LCR_PEN     0x08    /* Parity eneble*/
+#define LCR_EPS     0x10    /* Even Parity Select*/
+#define LCR_STKP    0x20    /* Stick Parity*/
+#define LCR_SBRK    0x40    /* Set Break*/
+#define LCR_BKSE    0x80    /* Bank select enable - aka DLAB on 8245 */
+
+#define LSR_DR      0x01    /* Data ready */
+#define LSR_OE      0x02    /* Overrun */
+#define LSR_PE      0x04    /* Parity error */
+#define LSR_FE      0x08    /* Framing error */
+#define LSR_BI      0x10    /* Break */
+#define LSR_THRE    0x20    /* Xmit holding register empty */
+#define LSR_TEMT    0x40    /* Xmitter empty */
+#define LSR_ERR     0x80    /* Error */
+
+/* useful defaults for LCR*/
+#define LCR_8N1     0x03
+
+
+volatile struct NS16550 * NS16550_init(int chan, int baud_divisor);
+void NS16550_putc(volatile struct NS16550 *com_port, unsigned char c);
+unsigned char NS16550_getc(volatile struct NS16550 *com_port);
+int NS16550_tstc(volatile struct NS16550 *com_port);
+void NS16550_reinit(volatile struct NS16550 *com_port, int baud_divisor);
+