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authorAndreas Huber <andreas.huber@keymile.com>2011-01-25 11:26:15 +0100
committerWolfgang Denk <wd@denx.de>2011-04-11 22:41:37 +0200
commit91a3c14cd0edb7cf427eb025ae25920c8546767c (patch)
tree41bb688d771f22cf1d624ddce7ac9861f9c39536 /board
parent086f09150d88a9bfe01b697900dcada6056d854f (diff)
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ppc, mgcoge: add DIP switch detection
This reads the DIP switch on mgcoge. The DIP switch is connected to the BFTICU (0x40000089) FPGA. If the DIP switch is set the environment variable 'actual_bank' is set to 0 and starts the SW in bank0. Signed-off-by: Andreas Huber <andreas.huber@keymile.com> Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Diffstat (limited to 'board')
-rw-r--r--board/keymile/mgcoge/mgcoge.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/board/keymile/mgcoge/mgcoge.c b/board/keymile/mgcoge/mgcoge.c
index 5c9496c..5dcdf37 100644
--- a/board/keymile/mgcoge/mgcoge.c
+++ b/board/keymile/mgcoge/mgcoge.c
@@ -293,6 +293,24 @@ int checkboard(void)
return 0;
}
+#define DIPSWITCH_OFFSET 0x89
+#define DIPSWITCH_MASK 0x0f
+
+int last_stage_init(void)
+{
+ u8 dip_switch;
+ /* Dip switch */
+ dip_switch = readb(CONFIG_SYS_BFTICU_BASE + DIPSWITCH_OFFSET);
+ dip_switch &= DIPSWITCH_MASK;
+ /* dip switch 'full reset' or 'db erase' */
+ if (dip_switch & 0x1 || dip_switch & 0x2) {
+ /* start bootloader */
+ puts("DIP: Enabled\n");
+ setenv("actual_bank", "0");
+ }
+ return 0;
+}
+
/*
* Early board initalization.
*/