mpc5200: digsy_mtc: add support for graphic extension board

Add detection and initialisation for graphic extension board
and support splash screen when booting. Enable "bmp" command
in the board configuration and provide "disp" command to
be able to switch the display on/off.

Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Detlev Zundel <dzu@denx.de>

1 files changed, 57 insertions, 0 deletions

diff --git a/board/digsy_mtc/cmd_disp.c b/board/digsy_mtc/cmd_disp.c
new file mode 100644
index 0000000..d5f5efb
--- /dev/null
+++ b/board/digsy_mtc/cmd_disp.c
@@ -0,0 +1,57 @@
+/*
+ * (C) Copyright 2011 DENX Software Engineering,
+ * Anatolij Gustschin <agust@denx.de>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <command.h>
+#include <mpc5xxx.h>
+#include <asm/io.h>
+
+#define GPIO_USB1_0	0x00010000
+
+static int cmd_disp(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
+{
+	struct mpc5xxx_gpio *gpio = (struct mpc5xxx_gpio *)MPC5XXX_GPIO;
+
+	if (argc < 2) {
+		printf("%s\n",
+		       in_be32(&gpio->simple_dvo) & GPIO_USB1_0 ? "on" : "off");
+		return 0;
+	}
+
+	if (!strncmp(argv[1], "on", 2)) {
+		setbits_be32(&gpio->simple_dvo, GPIO_USB1_0);
+	} else if (!strncmp(argv[1], "off", 3)) {
+		clrbits_be32(&gpio->simple_dvo, GPIO_USB1_0);
+	} else {
+		cmd_usage(cmdtp);
+		return 1;
+	}
+	return 0;
+}
+
+U_BOOT_CMD(disp, 2, 1, cmd_disp,
+		"disp [on/off] - switch display on/off",
+		"\n    - print display on/off status\n"
+		"on\n    - turn on\n"
+		"off\n    - turn off\n"
+);