Das U-Boot: Universal Boot Loader

diff --git a/cpu/mpc8xx/status_led.c b/cpu/mpc8xx/status_led.c
new file mode 100644 (file)
index 0000000..d8aaeec
--- /dev/null
+++ b/cpu/mpc8xx/status_led.c
@@ -0,0 +1,168 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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
+ */
+
+#include <common.h>
+#include <mpc8xx.h>
+#include <status_led.h>
+
+/*
+ * The purpose of this code is to signal the operational status of a
+ * target which usually boots over the network; while running in
+ * PCBoot, a status LED is blinking. As soon as a valid BOOTP reply
+ * message has been received, the LED is turned off. The Linux
+ * kernel, once it is running, will start blinking the LED again,
+ * with another frequency.
+ */
+
+/* ------------------------------------------------------------------------- */
+
+#ifdef CONFIG_STATUS_LED
+
+typedef struct {
+       ulong   mask;
+       int     state;
+       int     period;
+       int     cnt;
+} led_dev_t;
+
+led_dev_t led_dev[] = {
+    {  STATUS_LED_BIT,
+       STATUS_LED_STATE,
+       STATUS_LED_PERIOD,
+       0,
+    },
+#if defined(STATUS_LED_BIT1)
+    {  STATUS_LED_BIT1,
+       STATUS_LED_STATE1,
+       STATUS_LED_PERIOD1,
+       0,
+    },
+#endif
+#if defined(STATUS_LED_BIT2)
+    {  STATUS_LED_BIT2,
+       STATUS_LED_STATE2,
+       STATUS_LED_PERIOD2,
+       0,
+    },
+#endif
+#if defined(STATUS_LED_BIT3)
+    {  STATUS_LED_BIT3,
+       STATUS_LED_STATE3,
+       STATUS_LED_PERIOD3,
+       0,
+    },
+#endif
+};
+
+#define MAX_LED_DEV    (sizeof(led_dev)/sizeof(led_dev_t))
+
+static int status_led_init_done = 0;
+
+static void status_led_init (void)
+{
+    volatile immap_t *immr = (immap_t *)CFG_IMMR;
+    int i;
+
+    for (i=0; i<MAX_LED_DEV; ++i) {
+       led_dev_t *ld = &led_dev[i];
+
+       immr->STATUS_LED_PAR &= ~(ld->mask);
+#ifdef STATUS_LED_ODR
+       immr->STATUS_LED_ODR &= ~(ld->mask);
+#endif
+#if (STATUS_LED_ACTIVE == 0)
+       if (ld->state == STATUS_LED_ON)
+               immr->STATUS_LED_DAT &= ~(ld->mask);
+       else
+               immr->STATUS_LED_DAT |=   ld->mask ;
+#else
+       if (ld->state == STATUS_LED_ON)
+               immr->STATUS_LED_DAT |=   ld->mask ;
+       else
+               immr->STATUS_LED_DAT &= ~(ld->mask);
+#endif
+       immr->STATUS_LED_DIR |=   ld->mask ;
+    }
+
+    status_led_init_done  = 1;
+}
+
+void status_led_tick (ulong timestamp)
+{
+    volatile immap_t *immr = (immap_t *)CFG_IMMR;
+    int i;
+
+    if (!status_led_init_done)
+       status_led_init();
+
+    for (i=0; i<MAX_LED_DEV; ++i) {
+       led_dev_t *ld = &led_dev[i];
+
+       if (ld->state != STATUS_LED_BLINKING)
+               continue;
+
+       if (++(ld->cnt) >= ld->period) {
+               immr->STATUS_LED_DAT ^= ld->mask;
+               ld->cnt -= ld->period;
+       }
+    }
+}
+
+void status_led_set (int led, int state)
+{
+    volatile immap_t *immr = (immap_t *)CFG_IMMR;
+    led_dev_t *ld;
+
+    if (led < 0 || led >= MAX_LED_DEV)
+       return;
+
+    if (!status_led_init_done)
+       status_led_init();
+
+    ld = &led_dev[led];
+
+    switch (state) {
+    default:
+       return;
+    case STATUS_LED_BLINKING:
+       ld->cnt = 0;            /* always start with full period        */
+       /* fall through */      /* always start with LED _ON_           */
+    case STATUS_LED_ON:
+#if (STATUS_LED_ACTIVE == 0)
+       immr->STATUS_LED_DAT &= ~(ld->mask);
+#else
+       immr->STATUS_LED_DAT |=   ld->mask ;
+#endif
+       break;
+    case STATUS_LED_OFF:
+#if (STATUS_LED_ACTIVE == 0)
+       immr->STATUS_LED_DAT |=   ld->mask ;
+#else
+       immr->STATUS_LED_DAT &= ~(ld->mask);
+#endif
+       break;
+    }
+    ld->state = state;
+}
+
+#endif /* CONFIG_STATUS_LED */

diff --git a/rtc/Makefile b/rtc/Makefile
new file mode 100644 (file)
index 0000000..0e1fd0f
--- /dev/null
+++ b/rtc/Makefile
@@ -0,0 +1,46 @@
+#
+# (C) Copyright 2001
+# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+#
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+#CFLAGS += -DDEBUG
+
+LIB    = librtc.a
+
+OBJS   = date.o   ds1302.o ds1306.o ds1337.o ds1556.o ds174x.o \
+         m41t11.o m48t35ax.o mc146818.o mk48t59.o \
+         mpc8xx.o pcf8563.o
+
+all:   $(LIB)
+
+$(LIB):        $(START) $(OBJS)
+       $(AR) crv $@ $(OBJS)
+
+#########################################################################
+
+.depend:       Makefile $(OBJS:.o=.c)
+               $(CC) -M $(CFLAGS) $(OBJS:.o=.c) > $@
+
+sinclude .depend
+
+#########################################################################