1 files changed, 109 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/shared/vme/vmeconfig.c b/c/src/lib/libbsp/powerpc/shared/vme/vmeconfig.c
new file mode 100644
index 0000000000..9092680067
--- /dev/null
+++ b/c/src/lib/libbsp/powerpc/shared/vme/vmeconfig.c
@@ -0,0 +1,109 @@
+/* $Id$ */
+
+/* Standard VME bridge configuration for VGM type boards */
+
+/* Author: Till Straumann <strauman@slac.stanford.edu>, 3/2002 */
+
+#include <bsp.h>
+#include <bsp/VME.h>
+#include <bsp/irq.h>
+#include <libcpu/bat.h>
+#include <libcpu/spr.h>
+#include <bsp/motorola.h>
+
+/* Use a weak alias for the VME configuration.
+ * This permits individual applications to override
+ * this routine.
+ * They may even create an 'empty'
+ *
+ *    void BSP_vme_config(void) {}
+ *
+ * which will avoid linking in the Universe driver
+ * at all :-).
+ */
+
+void BSP_vme_config(void) __attribute__ (( weak, alias("__BSP_default_vme_config") ));
+
+int _BSP_vme_bridge_irq = -1;
+
+SPR_RO(DBAT0U)
+
+void
+__BSP_default_vme_config(void)
+{
+union {
+	struct _BATU	bat;
+	unsigned long	batbits;
+} dbat0u;
+
+  if (currentBoard < MVME_2300 || currentBoard >= MVME_1600) {
+		printk("VME bridge for this board is unknown - if it's a Tundra Universe, add the board to 'shared/vme/vmeconfig.c'\n");
+		printk("Skipping VME initialization...\n");
+		return;
+  }
+
+  vmeUniverseInit();
+  vmeUniverseReset();
+
+  /* setup a PCI area to map the VME bus */
+
+  dbat0u.batbits = _read_DBAT0U();
+
+  /* if we have page tables, BAT0 is available */
+  if (dbat0u.bat.vs || dbat0u.bat.vp) {
+	printk("WARNING: BAT0 is taken (no pagetables?); VME bridge must share PCI range for VME access\n");
+	printk("Skipping VME initialization...\n");
+	return;
+  }
+
+  setdbat(0,
+		  PCI_MEM_BASE + _VME_A32_WIN0_ON_PCI,
+		  PCI_MEM_BASE + _VME_A32_WIN0_ON_PCI,
+		  0x10000000,
+		  IO_PAGE);
+
+  /* map VME address ranges */
+  vmeUniverseMasterPortCfg(
+	0,
+	VME_AM_EXT_SUP_DATA,
+	_VME_A32_WIN0_ON_VME,
+	_VME_A32_WIN0_ON_PCI,
+	0x0F000000);
+  vmeUniverseMasterPortCfg(
+	1,
+	VME_AM_STD_SUP_DATA,
+	0x00000000,
+	_VME_A24_ON_PCI,
+	0x00ff0000);
+  vmeUniverseMasterPortCfg(
+	2,
+	VME_AM_SUP_SHORT_IO,
+	0x00000000,
+	_VME_A16_ON_PCI,
+	0x00010000);
+
+#ifdef _VME_DRAM_OFFSET
+  /* map our memory to VME */
+  vmeUniverseSlavePortCfg(
+	0,
+	VME_AM_EXT_SUP_DATA,
+	_VME_DRAM_OFFSET,
+	PCI_DRAM_OFFSET,
+	BSP_mem_size);
+
+  /* make sure the host bridge PCI master is enabled */
+  vmeUniverseWriteReg(
+	vmeUniverseReadReg(UNIV_REGOFF_PCI_CSR) | UNIV_PCI_CSR_BM,
+	UNIV_REGOFF_PCI_CSR);
+#endif
+
+  /* stdio is not yet initialized; the driver will revert to printk */
+  vmeUniverseMasterPortsShow(0);
+  vmeUniverseSlavePortsShow(0);
+
+  /* install the VME insterrupt manager */
+  vmeUniverseInstallIrqMgr(0,5,1,6);
+  if (vmeUniverse0PciIrqLine<0)
+	BSP_panic("Unable to get interrupt line info from PCI config");
+  _BSP_vme_bridge_irq=BSP_PCI_IRQ_LOWEST_OFFSET+vmeUniverse0PciIrqLine;
+}