powerpc/km82xx: add mgcoge3ne and remove mgcoge2ne support

This patch adds support for the MPC8247 based board mgcoge3ne.
Additionaly mgcoge2ne board supprot was removed, because due
to the mgcoge3ne, this board is obsolete and not longer
maintained.
The board is similar to mgcoge. The difference is that
a NUMONYX flash is used and a different SDRAM (256MB).
Also introduce CONFIG_KM_82XX to collect ppc82xx common
settings and remove staticness from the common set_pin function.

Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Acked-by: Heiko Schocher <hs@denx.de>
cc: Wolfgang Denk <wd@denx.de>
cc: Detlev Zundel <dzu@denx.de>

1 files changed, 26 insertions, 1 deletions

diff --git a/board/keymile/km82xx/km82xx.c b/board/keymile/km82xx/km82xx.c
index 01c0bfd29a..d453d25ac3 100644
--- a/board/keymile/km82xx/km82xx.c
+++ b/board/keymile/km82xx/km82xx.c
@@ -288,7 +288,7 @@ int checkboard(void)
 #if defined(CONFIG_MGCOGE)
 	puts("Board: Keymile mgcoge");
 #else
-	puts("Board: Keymile mgcoge2ne");
+	puts("Board: Keymile mgcoge3ne");
 #endif
 	if (ethernet_present())
 		puts(" with PIGGY.");
@@ -314,6 +314,28 @@ int last_stage_init(void)
 	return 0;
 }
 
+#ifdef CONFIG_MGCOGE3NE
+/*
+ * For mgcoge3ne boards, the mgcoge3un control is controlled from
+ * a GPIO line on the PPC CPU. If bobcatreset is set the line
+ * will toggle once what forces the mgocge3un part to restart
+ * immediately.
+ */
+void handle_mgcoge3un_reset(void)
+{
+	char *bobcatreset = getenv("bobcatreset");
+	if (bobcatreset) {
+		if (strcmp(bobcatreset, "true") == 0) {
+			puts("Forcing bobcat reset\n");
+			set_pin(0, 0x00000004);	/* clear PD29 to reset arm */
+			udelay(1000);
+			set_pin(1, 0x00000004);
+		} else
+			set_pin(1, 0x00000004);	/* set PD29 to not reset arm */
+	}
+}
+#endif
+
 /*
  * Early board initalization.
  */
@@ -329,6 +351,9 @@ int board_early_init_r(void)
 	out_8(&base->oprtl, (H_OPORTS_SCC4_ENA | H_OPORTS_SCC4_FD_ENA |
 		H_OPORTS_FCC1_PW_DWN));
 
+#ifdef CONFIG_MGCOGE3NE
+	handle_mgcoge3un_reset();
+#endif
 	return 0;
 }