* 2 of the Licence, or (at your option) any later version.
*/
#include <linux/kernel.h>
+#include <asm/fpu.h>
#include <asm/rtc.h>
+#include <asm/busctl-regs.h>
/*
* initialise the on-silicon processor peripherals
__set_intr_stub(EXCEP_DAERROR, dtlb_aerror);
__set_intr_stub(EXCEP_BUSERROR, raw_bus_error);
__set_intr_stub(EXCEP_DOUBLE_FAULT, double_fault);
+ __set_intr_stub(EXCEP_FPU_DISABLED, fpu_disabled);
__set_intr_stub(EXCEP_SYSCALL0, system_call);
__set_intr_stub(EXCEP_NMI, nmi_handler);
calibrate_clock();
}
+
+/*
+ * determine the memory size and base from the memory controller regs
+ */
+void __init get_mem_info(unsigned long *mem_base, unsigned long *mem_size)
+{
+ unsigned long base, size;
+
+ *mem_base = 0;
+ *mem_size = 0;
+
+ base = SDBASE(0);
+ if (base & SDBASE_CE) {
+ size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT;
+ size = ~size + 1;
+ base &= SDBASE_CBA;
+
+ printk(KERN_INFO "SDRAM[0]: %luMb @%08lx\n", size >> 20, base);
+ *mem_size += size;
+ *mem_base = base;
+ }
+
+ base = SDBASE(1);
+ if (base & SDBASE_CE) {
+ size = (base & SDBASE_CBAM) << SDBASE_CBAM_SHIFT;
+ size = ~size + 1;
+ base &= SDBASE_CBA;
+
+ printk(KERN_INFO "SDRAM[1]: %luMb @%08lx\n", size >> 20, base);
+ *mem_size += size;
+ if (*mem_base == 0)
+ *mem_base = base;
+ }
+}