sh: x3proto: ILSEL IRQ support.

This adds functionality for the on-board ILSEL IRQs that chain
IRL mode events. Many on-board devices (ethernet, usb, etc.) rely
on ILSEL IRQs directly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 45 insertions, 0 deletions

diff --git a/include/asm-sh/ilsel.h b/include/asm-sh/ilsel.h
new file mode 100644
index 000000000000..e3d304b280f6
--- /dev/null
+++ b/include/asm-sh/ilsel.h
@@ -0,0 +1,45 @@
+#ifndef __ASM_SH_ILSEL_H
+#define __ASM_SH_ILSEL_H
+
+typedef enum {
+        ILSEL_NONE,
+        ILSEL_LAN,
+        ILSEL_USBH_I,
+        ILSEL_USBH_S,
+        ILSEL_USBH_V,
+        ILSEL_RTC,
+        ILSEL_USBP_I,
+        ILSEL_USBP_S,
+        ILSEL_USBP_V,
+        ILSEL_KEY,
+
+        /*
+         * ILSEL Aliases - corner cases for interleaved level tables.
+         *
+         * Someone thought this was a good idea and less hassle than
+         * demuxing a shared vector, really.
+         */
+
+        /* ILSEL0 and 2 */
+        ILSEL_FPGA0,
+        ILSEL_FPGA1,
+        ILSEL_EX1,
+        ILSEL_EX2,
+        ILSEL_EX3,
+        ILSEL_EX4,
+
+        /* ILSEL1 and 3 */
+        ILSEL_FPGA2 = ILSEL_FPGA0,
+        ILSEL_FPGA3 = ILSEL_FPGA1,
+        ILSEL_EX5 = ILSEL_EX1,
+        ILSEL_EX6 = ILSEL_EX2,
+        ILSEL_EX7 = ILSEL_EX3,
+        ILSEL_EX8 = ILSEL_EX4,
+} ilsel_source_t;
+
+/* arch/sh/boards/renesas/x3proto/ilsel.c */
+int ilsel_enable(ilsel_source_t set);
+int ilsel_enable_fixed(ilsel_source_t set, unsigned int level);
+void ilsel_disable(unsigned int irq);
+
+#endif /* __ASM_SH_ILSEL_H */