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authorThomas Bogendoerfer <tsbogend@alpha.franken.de>2008-01-04 23:31:07 +0100
committerRalf Baechle <ralf@linux-mips.org>2008-01-29 10:14:59 +0000
commit231a35d37293ab88d325a9cb94e5474c156282c0 (patch)
tree75f38d069e5e49de03fb789975b8a102c282b979 /arch/mips/sni/eisa.c
parent237cfee1db66147aef4457f02b56a41e6f84bfd3 (diff)
[MIPS] RM: Collected changes
- EISA support for non PCI RMs (RM200 and RM400-xxx). The major part is the splitting of the EISA and onboard ISA of the RM200, which makes the EISA bus on the RM200 look like on other RMs. - 64bit kernel support - system type detection is now common for big and little endian - moved sniprom code to arch/mips/fw - added call_o32 function to arch/mips/fw/lib, which uses a private stack for calling prom functions - fix problem with ISA interrupts, which makes using PIT clockevent possible Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/sni/eisa.c')
-rw-r--r--arch/mips/sni/eisa.c50
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/mips/sni/eisa.c b/arch/mips/sni/eisa.c
new file mode 100644
index 00000000000..7396cd71990
--- /dev/null
+++ b/arch/mips/sni/eisa.c
@@ -0,0 +1,50 @@
+/*
+ * Virtual EISA root driver.
+ * Acts as a placeholder if we don't have a proper EISA bridge.
+ *
+ * (C) 2003 Marc Zyngier <maz@wild-wind.fr.eu.org>
+ * modified for SNI usage by Thomas Bogendoerfer
+ *
+ * This code is released under the GPL version 2.
+ */
+
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/eisa.h>
+#include <linux/init.h>
+
+/* The default EISA device parent (virtual root device).
+ * Now use a platform device, since that's the obvious choice. */
+
+static struct platform_device eisa_root_dev = {
+ .name = "eisa",
+ .id = 0,
+};
+
+static struct eisa_root_device eisa_bus_root = {
+ .dev = &eisa_root_dev.dev,
+ .bus_base_addr = 0,
+ .res = &ioport_resource,
+ .slots = EISA_MAX_SLOTS,
+ .dma_mask = 0xffffffff,
+ .force_probe = 1,
+};
+
+int __init sni_eisa_root_init(void)
+{
+ int r;
+
+ r = platform_device_register(&eisa_root_dev);
+ if (!r)
+ return r;
+
+ eisa_root_dev.dev.driver_data = &eisa_bus_root;
+
+ if (eisa_root_register(&eisa_bus_root)) {
+ /* A real bridge may have been registered before
+ * us. So quietly unregister. */
+ platform_device_unregister(&eisa_root_dev);
+ return -1;
+ }
+ return 0;
+}