sh: Add marubun's pcmcia driver

Marubun pcmcia is a chip for PCMCIA used with SuperH.
Of course, this can be used even by other architectures.
When use this driver, came to be able to use CompactFlash
and Ethernet.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

1 files changed, 113 insertions, 0 deletions

diff --git a/drivers/marubun_pcmcia.c b/drivers/marubun_pcmcia.c
new file mode 100644
index 0000000..89b2015
--- /dev/null
+++ b/drivers/marubun_pcmcia.c
@@ -0,0 +1,113 @@
+/*
+ * Marubun MR-SHPC-01 PCMCIA controller device driver
+ *
+ * (c) 2007 Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
+ *
+ * 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 <config.h>
+#include <pcmcia.h>
+#include <asm/io.h>
+
+#if	(CONFIG_COMMANDS & CFG_CMD_PCMCIA)
+#define	CONFIG_PCMCIA
+#endif
+
+#if	(CONFIG_COMMANDS & CFG_CMD_IDE)
+#define	CONFIG_PCMCIA
+#endif
+
+#if	defined(CONFIG_PCMCIA)  \
+	        && (defined(CONFIG_MARUBUN_PCCARD)) 
+
+/* MR-SHPC-01 register */
+#define MRSHPC_MODE   	(CFG_MARUBUN_MRSHPC + 4)
+#define MRSHPC_OPTION   (CFG_MARUBUN_MRSHPC + 6)
+#define MRSHPC_CSR      (CFG_MARUBUN_MRSHPC + 8)
+#define MRSHPC_ISR      (CFG_MARUBUN_MRSHPC + 10)
+#define MRSHPC_ICR      (CFG_MARUBUN_MRSHPC + 12)
+#define MRSHPC_CPWCR    (CFG_MARUBUN_MRSHPC + 14)
+#define MRSHPC_MW0CR1   (CFG_MARUBUN_MRSHPC + 16)
+#define MRSHPC_MW1CR1   (CFG_MARUBUN_MRSHPC + 18)
+#define MRSHPC_IOWCR1   (CFG_MARUBUN_MRSHPC + 20)
+#define MRSHPC_MW0CR2   (CFG_MARUBUN_MRSHPC + 22)
+#define MRSHPC_MW1CR2   (CFG_MARUBUN_MRSHPC + 24)
+#define MRSHPC_IOWCR2   (CFG_MARUBUN_MRSHPC + 26)
+#define MRSHPC_CDCR     (CFG_MARUBUN_MRSHPC + 28)
+#define MRSHPC_PCIC_INFO (CFG_MARUBUN_MRSHPC + 30)
+
+int pcmcia_on (void)
+{
+	printf("Enable PCMCIA " PCMCIA_SLOT_MSG "\n");
+
+	/* Init */
+	outw( 0x0000 , MRSHPC_MODE );
+
+	if ((inw(MRSHPC_CSR) & 0x000c) == 0){	/* if card detect is true */
+		if ((inw(MRSHPC_CSR) & 0x0080) == 0){
+			outw(0x0674 ,MRSHPC_CPWCR);  /* Card Vcc is 3.3v? */
+		}else{
+			outw(0x0678 ,MRSHPC_CPWCR);  /* Card Vcc is 5V */
+		}
+		udelay( 100000 );   /* wait for power on */
+	}else{
+		return 1;
+	}
+	/*
+	 *	PC-Card window open
+	 *	flag == COMMON/ATTRIBUTE/IO
+	 */
+	/* common window open */
+	outw(0x8a84,MRSHPC_MW0CR1); /* window 0xb8400000 */
+	if ((inw(MRSHPC_CSR) & 0x4000) != 0)
+		outw(0x0b00,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 1 */
+	else
+		outw(0x0300,MRSHPC_MW0CR2); /* common mode & bus width 16bit SWAP = 0 */
+	
+	/* attribute window open */
+	outw(0x8a85,MRSHPC_MW1CR1); /* window 0xb8500000 */
+	if ((inw(MRSHPC_CSR) & 0x4000) != 0)
+		outw(0x0a00,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 1 */
+	else
+		outw(0x0200,MRSHPC_MW1CR2); /* attribute mode & bus width 16bit SWAP = 0 */
+	
+	/* I/O window open */
+	outw(0x8a86,MRSHPC_IOWCR1); /* I/O window 0xb8600000 */
+	outw(0x0008,MRSHPC_CDCR);   /* I/O card mode */
+	if ((inw(MRSHPC_CSR) & 0x4000) != 0)
+		outw(0x0a00,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 1 */
+	else
+		outw(0x0200,MRSHPC_IOWCR2); /* bus width 16bit SWAP = 0 */
+	
+	outw(0x0000,MRSHPC_ISR);
+	outw(0x2000,MRSHPC_ICR);
+	outb(0x00,(CFG_MARUBUN_MW2 + 0x206));
+	outb(0x42,(CFG_MARUBUN_MW2 + 0x200));
+
+	return 0;
+}
+
+int pcmcia_off (void)
+{
+	printf ("Disable PCMCIA " PCMCIA_SLOT_MSG "\n");
+
+	return 0;
+}
+
+#endif /* CONFIG_MARUBUN_PCCARD */