X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fppc%2Fsyslib%2Fhawk_common.c;h=a9911dc3a82f9a4b302310c209b38503f3a991bf;hb=ec3fc5db881d93617328ebec37f7ac5fa10377e4;hp=9c2e1506a6d742e80c058fe5a7cfcc1c03a854c9;hpb=4c4c8ffd303fc76f7b67c85e0aae99bb3995d9cb;p=linux-2.6.git

diff --git a/arch/ppc/syslib/hawk_common.c b/arch/ppc/syslib/hawk_common.c
index 9c2e1506a..a9911dc3a 100644
--- a/arch/ppc/syslib/hawk_common.c
+++ b/arch/ppc/syslib/hawk_common.c
@@ -285,3 +285,35 @@ hawk_get_mem_size(uint smc_base)
 
 	return total;
 }
+
+int __init
+hawk_mpic_init(unsigned int pci_mem_offset)
+{
+	unsigned short	devid;
+	unsigned int	pci_membase;
+
+	/* Check the first PCI device to see if it is a Raven or Hawk. */
+	early_read_config_word(0, 0, 0, PCI_DEVICE_ID, &devid);
+
+	switch (devid) {
+	case PCI_DEVICE_ID_MOTOROLA_RAVEN:
+	case PCI_DEVICE_ID_MOTOROLA_HAWK:
+		break;
+	default:
+		OpenPIC_Addr = NULL;
+		return 1;
+	}
+
+	/* Read the memory base register. */
+	early_read_config_dword(0, 0, 0, PCI_BASE_ADDRESS_1, &pci_membase);
+
+	if (pci_membase == 0) {
+		OpenPIC_Addr = NULL;
+		return 1;
+	}
+
+	/* Map the MPIC registers to virtual memory. */
+	OpenPIC_Addr = ioremap(pci_membase + pci_mem_offset, 0x22000);
+
+	return 0;
+}