added BSP hsc_cm01

1 files changed, 111 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/powerpc/gen83xx/i2c/i2c_init.c b/c/src/lib/libbsp/powerpc/gen83xx/i2c/i2c_init.c
new file mode 100644
index 0000000000..c64d8e45f0
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/gen83xx/i2c/i2c_init.c
@@ -0,0 +1,111 @@
+/*===============================================================*\
+| Project: RTEMS support for MPC83xx                              |
++-----------------------------------------------------------------+
+|                    Copyright (c) 2007                           |
+|                    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.com/license/LICENSE.                           |
+|                                                                 |
++-----------------------------------------------------------------+
+| this file contains the low level MPC83xx I2C driver parameters  |
+\*===============================================================*/
+#include <mpc83xx/mpc83xx_i2cdrv.h>
+#include <libchip/i2c-2b-eeprom.h>
+#include <bsp/irq.h>
+#include <bsp.h>
+
+static mpc83xx_i2c_desc_t mpc83xx_i2c_bus_tbl[2] = {
+  /* first channel */
+  {
+    {/* public fields */
+      ops:	&mpc83xx_i2c_ops,
+      size:	sizeof(mpc83xx_i2c_bus_tbl[0]),
+    },
+    { /* our private fields */
+      reg_ptr:	 &mpc83xx.i2c[0],
+      initialized: FALSE,
+      irq_number:  BSP_IPIC_IRQ_I2C1
+    }
+  },
+  /* second channel */
+  {
+    { /* public fields */
+      ops:	&mpc83xx_i2c_ops,
+      size:	sizeof(mpc83xx_i2c_bus_tbl[1]),
+    },
+    { /* our private fields */
+      reg_ptr:	 &mpc83xx.i2c[1],
+      initialized: FALSE,
+      irq_number:  BSP_IPIC_IRQ_I2C2
+    }
+  } 
+};
+
+rtems_libi2c_bus_t *mpc83xx_i2c_bus_descriptor[2] = {
+  &mpc83xx_i2c_bus_tbl[0].bus_desc,
+  &mpc83xx_i2c_bus_tbl[1].bus_desc
+};
+
+/*=========================================================================*\
+| Function:                                                                 |
+\*-------------------------------------------------------------------------*/
+rtems_status_code bsp_register_i2c
+(
+/*-------------------------------------------------------------------------*\
+| Purpose:                                                                  |
+|   register I2C busses and devices                                         |
++---------------------------------------------------------------------------+
+| Input Parameters:                                                         |
+\*-------------------------------------------------------------------------*/
+ void                                    /* <none>                         */
+)
+/*-------------------------------------------------------------------------*\
+| Return Value:                                                             |
+|    0 or error code                                                        |
+\*=========================================================================*/
+
+{
+  int ret_code;
+
+  /*
+   * init I2C library
+   */
+  rtems_libi2c_initialize ();
+
+  /*
+   * register first I2C bus
+   */
+  ret_code = rtems_libi2c_register_bus("/dev/i2c1",
+				       mpc83xx_i2c_bus_descriptor[0]);
+  if (ret_code < 0) {
+    return -ret_code;
+  }
+  /*
+   * register second I2C bus
+   */
+  ret_code = rtems_libi2c_register_bus("/dev/i2c2",
+				       mpc83xx_i2c_bus_descriptor[1]);
+  if (ret_code < 0) {
+    return -ret_code;
+  }
+  /*
+   * register EEPROM to bus 1, Address 0x50
+   */
+  ret_code = rtems_libi2c_register_drv(RTEMS_BSP_I2C_EEPROM_DEVICE_NAME,
+				       i2c_2b_eeprom_driver_descriptor,
+				       0,0x50);
+  if (ret_code < 0) {
+    return -ret_code;
+  }
+  /*
+   * FIXME: register RTC driver, when available
+   */
+  return 0;
+}