1 files changed, 102 insertions, 0 deletions
diff --git a/bsps/powerpc/gen5200/rtc/todcfg.c b/bsps/powerpc/gen5200/rtc/todcfg.c
new file mode 100644
index 0000000000..076de70b28
--- /dev/null
+++ b/bsps/powerpc/gen5200/rtc/todcfg.c
@@ -0,0 +1,102 @@
+/*===============================================================*\
+| Project: RTEMS generic MPC5200 BSP                              |
++-----------------------------------------------------------------+
+| Partially based on the code references which are named below.   |
+| Adaptions, modifications, enhancements and any recent parts of  |
+| the code are:                                                   |
+|                    Copyright (c) 2005                           |
+|                    Embedded Brains GmbH                         |
+|                    Obere Lagerstr. 30                           |
+|                    D-82178 Puchheim                             |
+|                    Germany                                      |
+|                    rtems@embedded-brains.de                     |
++-----------------------------------------------------------------+
+| The license and distribution terms for this file may be         |
+| found in the file LICENSE in this distribution or at            |
+|                                                                 |
+| http://www.rtems.org/license/LICENSE.                           |
+|                                                                 |
++-----------------------------------------------------------------+
+| this file configures the pcf8563 RTC for a PM520 board          |
+\*===============================================================*/
+/*
+ * This file contains the RTC driver table for Motorola MCF5206eLITE
+ * ColdFire evaluation board.
+ *
+ * Copyright (C) 2000 OKTET Ltd., St.-Petersburg, Russia
+ * Author: Victor V. Vengerov <vvv@oktet.ru>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ *
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <bsp/i2c.h>
+#include <libchip/rtc.h>
+#include "pcf8563.h"
+
+/* Forward function declaration */
+bool mpc5200_pcf8563_probe(int minor);
+
+extern rtc_fns pcf8563_fns;
+
+/* The following table configures the RTC drivers used in this BSP */
+rtc_tbl RTC_Table[] = {
+    {
+        "/dev/rtc",                /* sDeviceName */
+        RTC_CUSTOM,                /* deviceType */
+        &pcf8563_fns,              /* pDeviceFns */
+        mpc5200_pcf8563_probe,     /* deviceProbe */
+        NULL,                      /* pDeviceParams */
+        0x01,                      /* ulCtrlPort1, for PCF8563-I2C bus number */
+        PCF8563_I2C_ADDRESS,       /* ulDataPort, for PCF8563-I2C device addr */
+        NULL,                      /* getRegister - not applicable to PCF8563 */
+        NULL                       /* setRegister - not applicable to PCF8563 */
+    }
+};
+
+/* Some information used by the RTC driver */
+
+#define NUM_RTCS (sizeof(RTC_Table)/sizeof(rtc_tbl))
+
+size_t RTC_Count = NUM_RTCS;
+
+/* mpc5200_pcf8563_probe --
+ *     RTC presence probe function. Return TRUE, if device is present.
+ *     Device presence checked by probe access to RTC device over I2C bus.
+ *
+ * PARAMETERS:
+ *     minor - minor RTC device number
+ *
+ * RETURNS:
+ *     TRUE, if RTC device is present
+ */
+bool
+mpc5200_pcf8563_probe(int minor)
+{
+    int try = 0;
+    i2c_message_status status;
+    rtc_tbl *rtc;
+    i2c_bus_number bus;
+    i2c_address addr;
+
+    if (minor >= NUM_RTCS)
+        return false;
+
+    rtc = RTC_Table + minor;
+
+    bus = rtc->ulCtrlPort1;
+    addr = rtc->ulDataPort;
+    do {
+        status = i2c_wrbyte(bus, addr, 0);
+        if (status == I2C_NO_DEVICE)
+            return false;
+        try++;
+    } while ((try < 15) && (status != I2C_SUCCESSFUL));
+    if (status == I2C_SUCCESSFUL)
+        return true;
+    else
+        return false;
+}