From: Magnus Damm <damm@igel.co.jp>
Date: Fri, 23 Nov 2007 05:39:13 +0000 (+0900)
Subject: sh: fix R2D-1 CF support
X-Git-Tag: v2.6.24-rc4~96^2~2
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=abac3f784f11cf8ccca0fc37ae4f5ff04cc245c4;p=linux-2.6

sh: fix R2D-1 CF support

This patch fixes CF support for R2D-1 boards. Both R2D-1 and
R2D-PLUS are equipped with CF IRQs, but the R2D-1 FPGA version
seem to deliver IRQ spikes with certain CF cards during libata
probing.  This patch enables polling for R2D-1 as a workaround
for this broken FGPA logic.

R2D-1 CF support was recently introduced by commit:
43f4b8c7578b928892b6f01d374346ae14e5eb70.

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

diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c
index 37f2c0b447..8125d20fdb 100644
--- a/arch/sh/boards/renesas/rts7751r2d/setup.c
+++ b/arch/sh/boards/renesas/rts7751r2d/setup.c
@@ -53,10 +53,12 @@ static struct resource cf_ide_resources[] = {
 		.end	= PA_AREA5_IO + 0x80c,
 		.flags	= IORESOURCE_MEM,
 	},
+#ifndef CONFIG_RTS7751R2D_1 /* For R2D-1 polling is preferred */
 	[2] = {
 		.start	= IRQ_CF_IDE,
 		.flags	= IORESOURCE_IRQ,
 	},
+#endif
 };
 
 static struct pata_platform_info pata_info = {