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authorMagnus Damm <damm@igel.co.jp>2007-08-03 10:16:29 +0900
committerPaul Mundt <lethal@linux-sh.org>2007-08-03 10:16:29 +0900
commit5ca95c48f1bd006d1aafe2f8bf1a859262d6d7b1 (patch)
treea34e1a5ad3ecaca2d6f294d6ed3a83f9f6afca1a
parenta3b3e23015061814bffd733dbd9c4452b81ca6aa (diff)
downloadlinux-stericsson-5ca95c48f1bd006d1aafe2f8bf1a859262d6d7b1.tar.gz
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>
-rw-r--r--arch/sh/boards/renesas/rts7751r2d/setup.c9
-rw-r--r--include/asm-sh/rts7751r2d.h2
2 files changed, 9 insertions, 2 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));
}
diff --git a/include/asm-sh/rts7751r2d.h b/include/asm-sh/rts7751r2d.h
index 10565ac7966a..5d7800aa31b5 100644
--- a/include/asm-sh/rts7751r2d.h
+++ b/include/asm-sh/rts7751r2d.h
@@ -37,7 +37,7 @@
#define PA_VERREG 0xa4000032 /* FPGA Version Register */
#define PA_INPORT 0xa4000034 /* KEY Input Port control */
#define PA_OUTPORT 0xa4000036 /* LED control */
-#define PA_DMPORT 0xa4000038 /* DM270 Output Port control */
+#define PA_BVERREG 0xa4000038 /* Board Revision Register */
#define PA_AX88796L 0xaa000400 /* AX88796L Area */
#define PA_VOYAGER 0xab000000 /* VOYAGER GX Area */