From 8f0b7cbe8027c3745f5e0a199ecd152b032d8ad0 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Sun, 27 Mar 2005 23:41:39 +0000
Subject: Patches by Martin Krause, 22 Mar 2005: - use TQM5200_auto as MAKEALL
 target for TQM5200 systems - add support for SM501 graphics controller - add
 support for graphic console on TQM5200 - add support for TQM5200 Rev 200 -
 cleanup, fix typo in include/configs/TQM5200.h

---
 drivers/sm501.c | 150 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 150 insertions(+)
 create mode 100644 drivers/sm501.c

(limited to 'drivers/sm501.c')

diff --git a/drivers/sm501.c b/drivers/sm501.c
new file mode 100644
index 0000000..23db02c
--- /dev/null
+++ b/drivers/sm501.c
@@ -0,0 +1,150 @@
+/*
+ * (C) Copyright 2002
+ * Stäubli Faverges - <www.staubli.com>
+ * Pierre AUBERT  p.aubert@staubli.com
+ *
+ * (C) Copyright 2005
+ * Martin Krause TQ-Systems GmbH martin.krause@tqs.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
+ */
+
+/*
+ * Basic video support for SMI SM501 "Voyager" graphic controller
+ */
+
+#include <common.h>
+
+#ifdef CONFIG_VIDEO_SM501
+
+#include <video_fb.h>
+#include <sm501.h>
+
+#define read8(ptrReg)                \
+    *(volatile unsigned char *)(sm501.isaBase + ptrReg)
+
+#define write8(ptrReg,value) \
+    *(volatile unsigned char *)(sm501.isaBase + ptrReg) = value
+
+#define read16(ptrReg) \
+    (*(volatile unsigned short *)(sm501.isaBase + ptrReg))
+
+#define write16(ptrReg,value) \
+    (*(volatile unsigned short *)(sm501.isaBase + ptrReg) = value)
+
+#define read32(ptrReg) \
+    (*(volatile unsigned int *)(sm501.isaBase + ptrReg))
+
+#define write32(ptrReg, value) \
+    (*(volatile unsigned int *)(sm501.isaBase + ptrReg) = value)
+
+GraphicDevice sm501;
+
+/*-----------------------------------------------------------------------------
+ * SmiSetRegs --
+ *-----------------------------------------------------------------------------
+ */
+static void SmiSetRegs (void)
+{
+	/*
+	 * The content of the chipset register depends on the board (clocks,
+	 * ...)
+	 */
+	const SMI_REGS *preg = board_get_regs ();
+	while (preg->Index) {
+		write32 (preg->Index, preg->Value);
+		/*
+		 * Insert a delay between
+		 */
+		udelay (1000);
+		preg ++;
+	}
+}
+
+/*-----------------------------------------------------------------------------
+ * video_hw_init --
+ *-----------------------------------------------------------------------------
+ */
+void *video_hw_init (void)
+{
+	unsigned int *vm, i;
+
+	memset (&sm501, 0, sizeof (GraphicDevice));
+
+	/*
+	 * Initialization of the access to the graphic chipset Retreive base
+	 * address of the chipset (see board/RPXClassic/eccx.c)
+	 */
+	if ((sm501.isaBase = board_video_init ()) == 0) {
+		return (NULL);
+	}
+
+	if ((sm501.frameAdrs = board_video_get_fb ()) == 0) {
+		return (NULL);
+	}
+
+	sm501.winSizeX = board_get_width ();
+	sm501.winSizeY = board_get_height ();
+
+#if defined(CONFIG_VIDEO_SM501_8BPP)
+	sm501.gdfIndex = GDF__8BIT_INDEX;
+	sm501.gdfBytesPP = 1;
+
+#elif defined(CONFIG_VIDEO_SM501_16BPP)
+	sm501.gdfIndex = GDF_16BIT_565RGB;
+	sm501.gdfBytesPP = 2;
+
+#elif defined(CONFIG_VIDEO_SM501_32BPP)
+	sm501.gdfIndex = GDF_32BIT_X888RGB;
+	sm501.gdfBytesPP = 4;
+#else
+#error Unsupported SM501 BPP
+#endif
+
+	sm501.memSize = sm501.winSizeX * sm501.winSizeY * sm501.gdfBytesPP;
+
+	/* Load Smi registers */
+	SmiSetRegs ();
+
+	/* (see board/RPXClassic/RPXClassic.c) */
+	board_validate_screen (sm501.isaBase);
+
+	/* Clear video memory */
+	i = sm501.memSize/4;
+	vm = (unsigned int *)sm501.frameAdrs;
+	while(i--)
+		*vm++ = 0;
+
+	return (&sm501);
+}
+
+/*-----------------------------------------------------------------------------
+ * video_set_lut --
+ *-----------------------------------------------------------------------------
+ */
+void video_set_lut (
+	unsigned int index,           /* color number */
+	unsigned char r,              /* red */
+	unsigned char g,              /* green */
+	unsigned char b               /* blue */
+	)
+{
+}
+
+#endif /* CONFIG_VIDEO_SM501 */
-- 
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