1 files changed, 99 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/sparc/shared/can/grcan_rasta.c b/c/src/lib/libbsp/sparc/shared/can/grcan_rasta.c
new file mode 100644
index 0000000000..5f6701fa4c
--- /dev/null
+++ b/c/src/lib/libbsp/sparc/shared/can/grcan_rasta.c
@@ -0,0 +1,99 @@
+
+#include <rasta.h>
+
+/* PCI frequency */
+#define SYS_FREQ_HZ 33000000
+
+/*#define USE_AT697_RAM              1      */
+
+/* memarea_to_hw(x) 
+ *
+ * x: address in AT697 address space
+ * 
+ * returns the address in the RASTA address space that can be used to access x with dma.
+ * 
+*/
+#ifdef USE_AT697_RAM
+static inline unsigned int memarea_to_hw(unsigned int addr) {
+    return ((addr & 0x0fffffff) | RASTA_PCI_BASE);   
+}
+#else
+static inline unsigned int memarea_to_hw(unsigned int addr) {
+    return ((addr & 0x0fffffff) | RASTA_LOCAL_SRAM);        
+}
+#endif
+
+#define MEMAREA_TO_HW(x) memarea_to_hw(x)
+
+#define IRQ_CLEAR_PENDING(irqno)
+#define IRQ_UNMASK(irqno) 
+#define IRQ_MASK(irqno) 
+
+#define IRQ_GLOBAL_DISABLE() sparc_disable_interrupts()
+#define IRQ_GLOBAL_ENABLE() sparc_enable_interrupts()
+
+#define GRCAN_REG_INT(handler,irqno,arg) \
+  if ( grcan_rasta_int_reg ) \
+    grcan_rasta_int_reg(handler,irqno,arg);
+
+void (*grcan_rasta_int_reg)(void *handler, int irq, void *arg) = 0;
+
+#define GRCAN_PREFIX(name) grcan_rasta##name
+
+/* We provide our own handler */
+#define GRCAN_DONT_DECLARE_IRQ_HANDLER
+
+#define GRCAN_REG_BYPASS_CACHE
+#define GRCAN_DMA_BYPASS_CACHE
+
+#define GRCAN_MAX_CORES 1
+
+/* Custom Statically allocated memory */
+#undef STATICALLY_ALLOCATED_TX_BUFFER
+#undef STATICALLY_ALLOCATED_RX_BUFFER
+
+#define STATIC_TX_BUF_SIZE 4096
+#define STATIC_RX_BUF_SIZE 4096
+#define TX_BUF_SIZE 4096
+#define RX_BUF_SIZE 4096
+
+#define STATIC_TX_BUF_ADDR(core) \
+	(grcan_rasta_rambase+(core)*(STATIC_TX_BUF_SIZE+STATIC_RX_BUF_SIZE))
+
+#define STATIC_RX_BUF_ADDR(core) \
+	(grcan_rasta_rambase+(core)*(STATIC_TX_BUF_SIZE+STATIC_RX_BUF_SIZE)+STATIC_RX_BUF_SIZE)
+  
+  
+#define GRCAN_DEVNAME "/dev/grcan0"
+#define GRCAN_DEVNAME_NO(devstr,no) ((devstr)[10]='0'+(no))
+
+static int grcan_rasta_calc_memoffs(int maxcores, int corenum, unsigned int *mem_base, unsigned int *mem_end, unsigned int *bdtable_base);
+
+void grcan_rasta_interrupt_handler(int irq, void *pDev);
+
+unsigned int grcan_rasta_rambase;
+
+#include "grcan.c"
+
+
+int grcan_rasta_ram_register(amba_confarea_type *abus, int rambase)
+{
+  grcan_rasta_rambase = rambase;
+
+  return GRCAN_PREFIX(_register)(abus);
+}
+#if 0
+static void grcan_rasta_interrupt_handler(int v)
+{
+  /* We know there is always only one GRCAN core in a RASTA chip... */
+  grcan_interrupt(&grcans[0]);
+  /*
+	struct grcan_priv *pDev = arg;
+	grcan_interrupt(pDev);
+  */
+}
+#endif
+void GRCAN_PREFIX(_interrupt_handler)(int irq, void *pDev)
+{
+  grcan_interrupt(pDev);
+}