sh: fix cf support on r2d boards

This patch makes sure cf support is enabled on R2D-PLUS but disabled
on R2D-1. Without this fix R2D-1 boards hang on bootup.

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

1 files changed, 8 insertions, 1 deletions

diff --git a/arch/sh/boards/renesas/rts7751r2d/setup.c b/arch/sh/boards/renesas/rts7751r2d/setup.c
index e165d85c03b5..6f7029d33241 100644
--- a/arch/sh/boards/renesas/rts7751r2d/setup.c
+++ b/arch/sh/boards/renesas/rts7751r2d/setup.c
@@ -140,12 +140,19 @@ static struct platform_device sm501_device = {
 static struct platform_device *rts7751r2d_devices[] __initdata = {
         &uart_device,
         &heartbeat_device,
-        &cf_ide_device,
         &sm501_device,
 };
 
 static int __init rts7751r2d_devices_setup(void)
 {
+        int ret;
+
+        if (ctrl_inw(PA_BVERREG) == 0x10) { /* only working on R2D-PLUS */
+                ret = platform_device_register(&cf_ide_device);
+                if (ret)
+                        return ret;
+        }
+
         return platform_add_devices(rts7751r2d_devices,
                                     ARRAY_SIZE(rts7751r2d_devices));
 }