sh: intc - convert board specific r2d code

This patch converts the board specific interrupt code for r2d to make
use of intc. While at it we improve the Kconfig to avoid confusion.

- Two sets of interrupt tables exist - one for R2D-1 and one for R2D-PLUS.
- R2D-1 and R2D-PLUS use the same irq constants.
- R2D-1 has AX88796 support, R2D-PLUS does not hook up that IRQ.
- R2D-PLUS has KEY support, R2D-1 does not hook up that IRQ.
- The number and order of IRQ values are disconnected from register bits.
- Interrupt sources now start from IRQ 100.
- The machvec demux function converts from irlm IRQ 0-14 to IRQ 100++.

Tested on R2D-1 and R2D-PLUS boards.

Version 2 adds CONFIG_RTS7751R2D_1 and CONFIG_RTS7751R2D_PLUS together
with intc structured as __initdata.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 2 insertions, 6 deletions

diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c
index 4d1bbd30e52..90703d5d123 100644
--- a/arch/sh/boards/renesas/rts7751r2d/setup.c
+++ b/arch/sh/boards/renesas/rts7751r2d/setup.c
@@ -54,11 +54,7 @@ static struct resource cf_ide_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[2] = {
-#ifdef CONFIG_RTS7751R2D_REV11
-		.start	= 1,
-#else
-		.start	= 2,
-#endif
+		.start	= IRQ_CF_IDE,
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -147,7 +143,7 @@ static int __init rts7751r2d_devices_setup(void)
 {
 	int ret;
 
-	if (ctrl_inw(PA_BVERREG) == 0x10) { /* only working on R2D-PLUS */
+	if (ctrl_inw(PA_BVERREG) == 0x10) { /* R2D-PLUS */
 		ret = platform_device_register(&cf_ide_device);
 		if (ret)
 			return ret;