Support for MPC5643L.

Rework of the start sequence to reduce the amount assembler code and to
support configuration tables which may be provided by the application.

1 files changed, 169 insertions, 0 deletions

diff --git a/c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start-config-ebi-cs.c b/c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start-config-ebi-cs.c
new file mode 100644
index 0000000000..0f4e6184e4
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/mpc55xxevb/startup/start-config-ebi-cs.c
@@ -0,0 +1,169 @@
+/**
+ * @file
+ *
+ * @ingroup mpc55xx
+ *
+ * @brief EBI chip-select configuration.
+ */
+
+/*
+ * Copyright (c) 2008-2011 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  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.
+ *
+ * $Id: ebi-cs-config.c,v 1.1 2011/08/31 16:03:09 sh Exp $
+ */
+
+#include <bsp/mpc55xx-config.h>
+#include <bsp/start.h>
+#include <bsp.h>
+
+#ifdef MPC55XX_HAS_EBI
+
+BSP_START_TEXT_SECTION const struct EBI_CS_tag
+  mpc55xx_start_config_ebi_cs [] = {
+#if defined(MPC55XX_BOARD_GWLCFM)
+	/* CS0: External SRAM (16 bit, 1 wait states, 512kB, no burst) */
+	{
+        {
+            .B.BA = 0x20000000>>15,
+            .B.PS = 1,
+            .B.AD_MUX = 1,
+            .B.WEBS = 1,
+            .B.TBDIP = 0,
+            .B.BI = 1,
+            .B.V = 1
+        },
+        {
+            .B.AM = 0x1fff0,
+            .B.SCY = 1,
+            .B.BSCY = 0
+        }
+    },
+	/* CS1: External USB controller (16 bit, 3 wait states, 32kB, no burst) */
+	{
+        {
+            .B.BA = 0x22000000>>15,
+            .B.PS = 1,
+            .B.AD_MUX = 1,
+            .B.WEBS = 0,
+            .B.TBDIP = 0,
+            .B.BI = 1,
+            .B.V = 1
+        },
+        {
+            .B.AM = 0x1ffff,
+            .B.SCY = 3,
+            .B.BSCY = 0
+        }
+    },
+	/* CS2: Ethernet (16 bit, 2 wait states, 32kB, no burst) */
+	{
+        {
+            .B.BA = 0x22800000>>15,
+            .B.PS = 1,
+            .B.AD_MUX = 1,
+            .B.WEBS = 1,
+            .B.TBDIP = 0,
+            .B.BI = 1,
+            .B.V = 1
+        },
+        {
+            .B.AM = 0x1ffff,
+            .B.SCY = 1,
+            .B.BSCY = 0
+        }
+    },
+    {				/* CS3: MOST Companion. */
+        {
+            .B.BA = 0x23000000>>15,
+            .B.PS = 1,
+            .B.AD_MUX = 1,
+            .B.WEBS = 0,
+            .B.TBDIP = 0,
+            .B.BI = 1,
+            .B.V = 1
+        },
+
+        {
+            .B.AM = 0x1fff0,
+            .B.SCY = 1,
+            .B.BSCY = 0
+        }
+    }
+#elif defined(MPC55XX_BOARD_PHYCORE_MPC5554)
+    /* CS0: External flash. */
+    {
+        { .R = 0x20000003 },   /* Base 0x2000000, Burst Inhibit, Valid */
+        { .R = 0xff000050 }
+    },
+    /* CS1: External synchronous burst mode SRAM. */
+    {
+        { .R = 0x21000051 },   /* Base 0x2100000, 4-word Burst Enabled, Valid */
+        { .R = 0xff000000 }    /* No wait states. */
+    },
+    /* CS2: External LAN91C111 */
+    {
+        { .R = 0x22000003 },   /* Base 0x22000000, Burst inhibit, valid */
+        { .R = 0xff000010 }
+    },
+
+    /* CS3: External FPGA */
+    {
+        { .R = 0x23000003 },   /* Base 0x23000000, Burst inhibit, valid. */
+        { .R = 0xff000020 }
+    }
+#elif defined(MPC55XX_BOARD_MPC5566EVB)
+	/* CS0: External SRAM (2 wait states, 512kB, 4 word burst) */
+    {
+        {
+            .B.BA = 0,
+            .B.PS = 1,
+            .B.BL = 1,
+            .B.WEBS = 0,
+            .B.TBDIP = 0,
+            .B.BI = 1, /* TODO: Enable burst */
+            .B.V = 1
+        },
+
+        {
+            .B.AM = 0x1fff0,
+            .B.SCY = 0,
+            .B.BSCY = 0
+        }
+    },
+    { { .R = 0 }, { .R = 0 } },   /* CS1: Unused. */
+    { { .R = 0 }, { .R = 0 } },   /* CS2: Unused. */
+    {   /* CS3: ethernet? */
+        {
+            .B.BA = 0x7fff,
+            .B.PS = 1,
+            .B.BL = 0,
+            .B.WEBS = 0,
+            .B.TBDIP = 0,
+            .B.BI = 1,
+            .B.V = 1
+        },
+
+        {
+            .B.AM = 0x1ffff,
+            .B.SCY = 1,
+            .B.BSCY = 0
+        }
+    }
+#endif
+};
+
+BSP_START_TEXT_SECTION const size_t mpc55xx_start_config_ebi_cs_count [] = {
+  sizeof(mpc55xx_start_config_ebi_cs) / sizeof(mpc55xx_start_config_ebi_cs [0])
+};
+
+#endif /* MPC55XX_HAS_EBI */